🧬 KodaKoda's Weekly Immunology News

2026-07-17 · 146 papers · ← アーカイブ一覧

146
総論文数
25
腫瘍免疫
21
感染症
20
自然免疫
7
獲得免疫
9
自己免疫
5
アレルギー
5
ワクチン
10
腸内環境・マイクロバイオーム
5
神経免疫
18
その他

カテゴリ

🔴 腫瘍免疫 Tumor Immunology 25 papers
Martin Hutchings(Rigshospitalet and University of Copenhagen, Copenhagen, Den)|2026 Jul 16|PMID: 42463852
再発・難治性B細胞非ホジキンリンパ腫(B-NHL)患者を対象に、CD19-4-1BBL共刺激分子エングルマフスプアルファとグロフィタマブの併用療法を評価するフェーズ1試験が実施された。オビヌツズマブ前処置後にグロフィタマブのステップアップ投与を行い、続いてグロフィタマブとエングルマフスプアルファを併用した。本試験は用量漸増デザインで行われ、既存治療に抵抗性を示すB-NHLに対するオフザシェルフ治療の可能性を探った。
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Boqun Bao(State Key Laboratory of Immune Response and Immunotherapy, t)|2026 Jul 17|PMID: 42463687
1型自然リンパ球(ILC1)は成体マウス肝臓に豊富に存在し、免疫監視において重要な役割を担う。シングルセルRNA-seqの再解析によりILC1でのAsb2高発現が確認され、NKp46+細胞特異的なAsb2条件付き欠損マウスではILC1の生存障害と肝臓ILC1数の減少が観察された。プロテオミクスおよびバルクRNA-seqにより、ASB2欠損ILC1では脂質代謝経路が亢進しており、脂質蓄積の抑制がILC1の恒常性維持と抗腫瘍免疫に寄与することが示された。
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Suisui Hao(Department of Medicine, Keck School of Medicine of Universit)|2026 Jul 16|PMID: 42462829
DNAミスマッチ修復欠損(dMMR)・マイクロサテライト不安定性(MSI)大腸癌は免疫原性が高く免疫チェックポイント阻害薬(ICI)に反応しやすいとされるが、相当数の症例では効果がないか耐性を獲得する。本研究では、DR5とリガーゼ3を介したフィードバックループがdMMR/MSI大腸癌における免疫原性の持続に関与することが同定された。同系腫瘍移植モデルや免疫細胞共培養などを用いた解析により、MSI誘導性抗腫瘍免疫の機序と耐性獲得の理解が深まった。
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William K Decker(Department of Pathology and Immunology, Dan L. Duncan Compre)|2026 Jul 16|PMID: 42462043
腫瘍組織における三次リンパ組織(TLS)の形成に、特定のサブセットの樹状細胞が中心的な役割を果たすことが明らかになった。この研究は、TLSの発達を制御する細胞機構の理解を深めるものである。樹状細胞によるTLS制御は、がん免疫療法の応答性と関連している。
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Raphaël Mattiuz(Marc and Jennifer Lipschultz Precision Immunology Institute,)|2026 Jul 16|PMID: 42462020
三次リンパ組織(TLS)は免疫療法の奏効と関連するが、その形成・維持メカニズムは不明であった。空間トランスクリプトミクスと多重イメージングにより、CCR7+成熟樹状細胞(DC)がTLSに集積することを示し、マウス非小細胞肺がんモデルではIFN-γ駆動のcDC1成熟・腫瘍所属リンパ節への移行・T細胞の集積がTLS初期発達に必要であることを明らかにした。腫瘍進行に伴い、TLSはDCによる維持機構を通じて持続することも示された。
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Qi Zhang(Department of Hepatobiliary and Pancreatic Surgery, the Firs)|2026 Jul 15|PMID: 42457964
グリピカン3(GPC3)は肝細胞がん(HCC)で高発現しており、CAR-T細胞療法の魅力的な標的であるが、腫瘍微小環境中の高レベルのTGFβにより臨床効果が制限されていた。本研究では、優性阻害型TGFβ受容体IIを搭載したGPC3特異的CAR-T細胞(C-CAR031)を開発し、進行HCC患者を対象としたファーストインヒューマン試験で安全性と有効性を評価した。前臨床試験で示された抗腫瘍活性の増強が、実際の患者においても確認された。
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Yuki Miyai(Department of Pathology, Nagoya University Graduate School o)|2026 Jul 15|PMID: 42457720
補体C3は肝細胞で産生され循環系を介して免疫防御に寄与することが知られているが、局所産生C3の役割は未解明であった。本研究では、がん関連線維芽細胞(CAF)由来のC3が免疫チェックポイント阻害(ICB)療法の有効性を規定することを発見し、全身性肝細胞由来C3はこの効果に関与しないことが示された。CAF特異的C3ノックアウトマウスでは抗PD-1療法への抵抗性と骨髄系細胞浸潤の増加が認められ、局所C3が骨髄系細胞制御を介してICB効果を調整することが明らかとなった。
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Zhiwen Hong(Department of Nuclear Medicine, Harbin Medical University Ca)|2026 Jul 14|PMID: 42448675
マイクロ波アブレーション後の肝細胞癌(HCC)再発において、残存腫瘍細胞でフマリルアセトアセテートヒドロラーゼ(FAH)が上昇し、フマル酸蓄積を介してCD8+ T細胞機能を抑制することが示された。FAHは腫瘍細胞のエネルギー代謝を促進する一方で免疫抑制腫瘍微環境を形成する「代謝チェックポイント」として機能する。層状ナノプラットフォームによるFAH阻害は代謝・免疫の再プログラミングをもたらし、アブレーション後のHCC再発を抑制した。
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Shuming Zhang(Department of Biomedical Engineering, Johns Hopkins Universi)|2026 Jul 21|PMID: 42446991
本研究では、空間的定量システム薬理学(spQSP)モデルを用いて肝細胞がん(HCC)の腫瘍微小環境を単細胞解像度でモデル化し、線維芽細胞が免疫療法応答に与える影響を定量的に解析した。エージェントベースモデルとQSPの統合により、組織レベルの空間構造を再現し、バイオマーカー探索と治療最適化を支援するフレームワークを構築した。これらの結果は、仮想臨床試験および薬剤開発における計算モデルの有用性を示している。
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Luyao Wang(Ovarian Cancer Cell Laboratory, MRC Weatherall Institute of )|2026 Jul 13|PMID: 42443174
卵管は高悪性度漿液性卵巣癌(HGSOC)の起源として注目されているが、その免疫微小環境は十分に理解されていない。本研究では、患者由来の卵管、転移性腫瘍、末梢血から組織常在性メモリー様T細胞(TRML)をシングルセルRNAシーケンシングで解析し、卵管由来と腫瘍浸潤TRMLの間に18.4%のクローン重複があることを発見した。共有クロノタイプは疲弊したCD8+T細胞に濃縮されており、卵管が卵巣癌に対する免疫監視の場として機能することが示唆された。
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E Perpiñán(Roger Williams Institute of Liver Studies, School of Immunol)|2026 Jul 13|PMID: 42443155
制御性T細胞(Treg)の腫瘍微小環境への過剰集積は抗腫瘍免疫を阻害する。本研究では、肝細胞癌(HCC)浸潤Tregが乳酸リッチな腫瘍微小環境に応答してNrf2経路を活性化し、代謝リプログラミングを起こすことを明らかにした。非腫瘍性肝臓に存在するTregはアポトーシス傾向にあるのに対し、HCC浸潤Tregはこの経路を通じて生存・蓄積し、免疫抑制的な腫瘍微小環境を形成することが示された。
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Kapil Saxena(Division of Cancer Medicine, The University of Texas MD Ande)|2026 Jul 21|PMID: 42441847
CD8+ T細胞による細胞傷害はTCRαβとペプチド-MHCクラスI複合体の相互作用を介して起こるが、MHC非依存的な殺傷メカニズムも存在する。本研究では、急性骨髄性白血病(AML)をモデルとして、CD64がCTLにおけるTCR依存性・MHC非依存性の細胞傷害を可能にすることを発見した。この知見は、MHC発現が低下したAML細胞に対する免疫応答メカニズムの理解を深め、新たな治療戦略への示唆をもたらす。
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Simona Plesselova(Center for Cancer Biology Research, Sanford Research Institu)|2026 Jul 11|PMID: 42436127
高悪性度漿液性癌(HGSC)は免疫学的に冷たい腫瘍微小環境を持ち、低酸素状態と細胞外マトリックスリモデリングが免疫排除を促進する。患者由来の生体工学的腫瘍免疫モデルを構築し、生理的酸素濃度とECMリモデリングを再現することに成功した。このモデルは腫瘍-間質-免疫相互作用の理解と薬剤開発に有用なプラットフォームを提供する。
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Haibo Zhang(Cancer Center, Department of Radiation Oncology, Zhejiang Pr)|2026 Jul 10|PMID: 42431878
肝細胞癌(HCC)サンプルの72例中52例でマイクロプラスチックが検出され、特にポリ塩化ビニル(PVC)が放射線療法の効果を低下させることが示された。機序として、照射によってヒストンラクチル化が促進され、HCC細胞においてHMG-CoAレダクターゼの転写が亢進することが明らかになった。PVCはCD8⁺T細胞の分化を阻害することで放射線抵抗性を誘導する。
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Yuwei Huang(School of Life Science and Technology, ShanghaiTech Universi)|2026 Jul 10|PMID: 42431196
FDA承認済みのフルベストラントを用いてCAR T細胞のフェーズセパレーション(相分離)を誘導することで、CAR T細胞のトニックシグナリングを精密に制御する手法が開発された。この手法により、抗原喪失による腫瘍再発や過剰なシグナルによるサイトカインストームなどの副作用を回避しつつ、CAR T細胞の抗腫瘍機能を最適化できる。薬剤誘導性の相分離制御は、CAR T細胞療法の安全性と有効性を向上させる新たな戦略を提供する。
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Maxwell Bannister(Medical Scientist Training Program, Johns Hopkins University)|2026 Jul 14|PMID: 42447848
転移前ニッチは代謝変化と好中球によって特徴づけられるが、両者を結ぶメカニズムは不明であった。Qianらは、肺内皮細胞由来のパルミチン酸が好中球にリポカリン2を放出させ、血管の完全性を破壊して肺転移を促進することを示した。この研究は脂質代謝と好中球機能を介した転移促進の新たなメカニズムを明らかにした。
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Massimo Russo(Cancer Inflammation and Immunity, Cancer Research UK Manches)|2026 Jul 14|PMID: 42447847
細胞外ATP(eATP)は免疫原性の危険シグナルとして知られるが、腫瘍微小環境での役割は不明であった。Huらは、eATPが腫瘍細胞上の受容体P2RY2を介してCOX-PGE2経路を活性化し、免疫抑制と免疫療法抵抗性を誘導することを報告した。この知見はeATPをPGE2発現の上流シグナルとして同定し、治療標的としての可能性を示す。
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Yange Gu(Liver Transplantation Center, Department of General Surgery,)|2026 Jul 14|PMID: 42398505
肝細胞癌(HCC)における腫瘍切除や肝移植後の再発は依然として大きな臨床課題である。コレステロールエステル化酵素SOAT1がプロテオミクス解析によって免疫回避と癌再発に関与することが同定された。SOAT1の遺伝的または薬理学的阻害により、肝癌細胞がCD8+ T細胞による免疫監視やanti-PD-1療法に対して感受性を持つようになることが示された。
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Zhaoqing Hu(Division Immune Regulation in Cancer, German Cancer Research)|2026 Jul 14|PMID: 42392075
腫瘍微小環境では細胞外ATP(eATP)が蓄積しており、免疫療法によってさらにその濃度が上昇することが示された。eATPはプリン受容体P2RY2を介して腫瘍細胞に直接作用し、COX-1/COX-2の発現を誘導してプロスタグランジンE2(PGE2)を蓄積させることでT細胞機能を抑制する。P2RY2の遺伝的欠失または薬理学的阻害は免疫療法への適応耐性を低減し、治療標的としての可能性を示す。
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Dong Guo(Zhejiang Provincial Key Laboratory of Pancreatic Disease, th)|2026 Jul 14|PMID: 42379164
がん細胞の好気性解糖によって産生される乳酸が、自然免疫センサーSTINGの強力な阻害因子であることが明らかになった。乳酸はSTINGのcGAMP結合ドメインに直接結合し、cGAMPの結合およびIRF3依存性サイトカイン発現を抑制することで免疫回避を促進する。EGFRシグナルを介した解糖亢進がこの機構を駆動しており、腫瘍免疫逃避における代謝と自然免疫の接点を示している。
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Arantxa Agesta(University Toulouse, INSERM, CNRS, Infinity, Toulouse, Franc)|2026 Jul 14|PMID: 42341755
転写因子EomesがCD4+ T細胞においてステム性プログラムを駆動し、抗腫瘍免疫を促進することが示された。Eomesは疲弊様Th細胞系列の分化・維持を調整し、4-1BB刺激によってこのプログラムが増強される。この前駆体Th細胞(pTh)はステム性マーカーを発現し、免疫療法応答における新たな治療標的となりうる。
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Shengduo Pei(Department of Microbiology, Tumor and Cell Biology, Karolins)|2026 Jul 14|PMID: 42296966
好中球が癌免疫療法への応答を阻害する主要なメカニズムとして、II型インターフェロン(IFN-γ)に依存したPD-L1のアップレギュレーションが同定された。好中球減少マウスを用いた実験により、好中球はT細胞および骨髄細胞を標的とした治療に対して抑制的に機能することが明らかになった。PD-L1陽性好中球を標的として除去することで治療効果を改善できる可能性が示された。
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Elizabeth S Borden(Department of Dermatology, College of Medicine-Phoenix, Univ)|2026 Jul 14|PMID: 42276071
免疫正常患者と免疫抑制患者の皮膚扁平上皮癌を比較解析し、T細胞による免疫編集が腫瘍抗原景観を変化させることが示された。高免疫浸潤腫瘍では全体的な変異負荷およびクローナル変異負荷が低下しており、新生抗原の免疫選択が示唆された。この研究は、未治療の一次ヒト腫瘍において免疫編集がクローナル新生抗原を制限することを直接実証した。
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Peng Qian(State Key Laboratory of Pharmaceutical Biotechnology, Depart)|2026 Jul 14|PMID: 42034064
トリプルネガティブ乳がんはパルミチン酸が豊富な肺微小環境を形成し、腫瘍細胞の血管外遊出と定着を促進することが示された。肺内皮細胞がパルミチン酸を取り込むことで好中球との相互作用が変化し、血管バリア機能が損なわれて転移前ニッチの形成が加速する。これらの知見は、脂質代謝が乳がんの肺転移における好中球・内皮細胞クロストークを制御する重要な役割を担うことを示している。
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Bowie Yik-Ling Cheng(Institute for Immunity, Transplantation and Infection, Stanf)|2026 Jul 14|PMID: 42034063
宿主細胞の複合N型糖鎖を一過性に薬理学的に阻害する「糖鎖工学」によって、FcγRIIIaのグリコシル化が変化し、IgGとFcγRの相互作用が増強されることが示された。前臨床モデルにおいて、この手法はα-CD20抗体による腫瘍排除をFcγRIIIaおよびNK細胞依存的に改善し、抗CD25抗体による腫瘍内制御性T細胞の除去効率も向上させた。本アプローチは既存の高効力抗体とも組み合わせ可能であり、がん治療における抗体療法の有効性を高める新戦略として期待される。
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🟢 感染症 Infection 21 papers
Zihao Gao(The Center for Bioinformatics and Computational Biology, Sha)|2026 Jul 16|PMID: 42463489
環境中のRNAウイルスの生態学はほとんど解明されていない。本研究では、31カ国102都市から収集した2922件のメタトランスクリプトームサンプルを解析し、54,945種のRNAウイルスからなる「都市・準都市RNAウイルスアトラス(UPVAtlas)」を構築した。そのうち77%は既知でなく、交通拠点や病院などヒト密集環境と準都市環境にわたるRNAウイルスの多様性と分布の特徴が明らかにされた。
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Yongkun Chen(Guangdong Provincial Key Laboratory of Infection Immunity an)|2026 Jul 16|PMID: 42462284
鳥インフルエンザH7N9のヒト感染の決定因子を解明するため、患者においてI型インターフェロン(IFN-I)中和自己抗体の有無を調査した症例対照研究である。IFN-I中和自己抗体を持つ患者はH7N9感染リスクが高く、既知のMxA機能喪失変異と並ぶ宿主因子であることが示唆された。これらの知見は、I型IFNシグナルの障害が鳥インフルエンザウイルスの種の壁を超える感染を促進する可能性を示している。
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Roger J Brüggemann(Department of Pharmacy, Pharmacology and Toxicology, and Rad)|2026 Jul 16|PMID: 42462281
アンデスウイルス(ANDV)はヒト間感染が可能な唯一のハンタウイルスであり、致死率が高いことから曝露後予防(PEP)の有効性が問われている。リバビリンはin vitroおよび動物モデルでハンタウイルスに対する抗ウイルス活性を示すが、ANDV曝露後のPEPとしての臨床的エビデンスは極めて限られている。本総説では、高リスク曝露(家庭内・医療関連・実験室)後のリバビリンPEPに関する現在の知見をまとめ、その妥当性を議論している。
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Emma T R Kelly(Department of Biochemistry, McGill University, Montréal, QC )|2026 Jul 21|PMID: 42455676
マクロライド系抗生物質に対する耐性機序の一つであるマクロライドエステラーゼの分子メカニズムを解析した。2種類のマクロライドエステラーゼが同定されており、それぞれ水和反応と加水分解反応を介してマクロライドのラクトン環を切断することが示された。これらの耐性酵素は病原菌・動物関連菌・環境菌に広く分布しており、One Healthの観点から重要な問題である。
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Rotem Gross(Institute for Biological Physics, Department of Physics, Uni)|2026 Jul 21|PMID: 42455658
大腸菌がセフォタキシム(CTX)に対して集団的に生存する機序を、実験と数理モデルを統合して解析した。細胞内外でのβ-ラクタマーゼによる抗生物質分解が集団生存に寄与し、致死濃度付近では初期バイオマス増加後に複雑な動態が観察された。細胞外β-ラクタマーゼ活性が集団耐性において特に重要な役割を果たすことが示された。
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Z Chaudhry(Wellcome Sanger Institute, Cambridge, UK. zc2@sanger.ac.uk.)|2026 Jul 15|PMID: 42448697
腸内抵抗性遺伝子レパートリー(レジストーム)の次世代シーケンシングによるプロファイリングが、抗菌薬耐性(AMR)遺伝子の取得・伝播・持続を網羅的に解析する手法として注目されている。従来の検出法ではAMRの複雑な相互作用を捉えられず、腸内レジストームプロファイリングが新興耐性の早期警戒システムとして有効であることが示された。本総説はこの分野の進歩を統合し、臨床リスク評価への応用可能性を論じている。
PubMed →
Jing Shi(Department of pathogen biology, School of Medicine, Nanjing )|2026 Jul 14|PMID: 42448686
結核菌の潜伏感染を制御する転写活性化因子DosRを含む転写活性化複合体(DosR-TAC)のクライオEM構造を決定した。DosRはN末端受容体ドメインとC末端DNA結合ドメインの独自のα10ヘリックスを介して対称的に二量体を形成し、低酸素プロモーターDNAに結合することが明らかとなった。この構造情報はMtbの潜伏感染制御機構の解明と新規抗結核薬開発に貢献する。
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Amritpal Singh(Emory University School of Medicine, Atlanta, USA; Departmen)|2026 Jul 14|PMID: 42447756
本研究では、8,651名(結核患者2,626名を含む)の胸部X線画像を用いたアトラスベースの手法により、肺結核患者における心臓形態の集団レベルの変化を評価した。4つのコホート・7カ国のデータを統合し、結核に関連する炎症反応が心臓の空間的構造に与える影響を定量的に解析した。この統計的アプローチは、結核と心血管合併症の関連を画像レベルで理解するための新たな枠組みを提供する。
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K Shanmugha Rajan(Department of Chemical and Structural Biology, The Weizmann )|2026 Jul 13|PMID: 42443220
本研究では、昆虫宿主と哺乳類宿主の間を行き来する寄生虫リーシュマニアにおける2'-O-メチル化の全体像を解析し、生活環の2つのステージで異なる修飾を受ける2つのrRNA位置を同定した。snoRNAによって誘導されるAm479修飾はリボソームの構造と機能に必須であることが、塩基編集実験により示された。これらの知見は、リーシュマニアのリボソームにおけるrRNA修飾の生物学的重要性と宿主適応機構を明らかにする。
PubMed →
Marcell A Zimanyi(Department of Pharmaceutical Chemistry, University of Califo)|2026 Jul 13|PMID: 42443199
ヒトヘルペスウイルス(HHV)の複製に必須なプロテアーゼ(HHV Pr)は、不活性モノマーから活性ダイマーへ移行する必要がある。本研究では、HCMVプロテアーゼのモノマー型を認識するFab5抗体を単離し、2.6Åのクライオ電子顕微鏡構造解析によってダイマー界面から離れた「ラッチループ」に結合することを明らかにした。この構造情報を基にした変異導入解析により、ダイマー化制御機構の詳細が解明され、新たな抗ウイルス戦略の可能性が示された。
PubMed →
Kristina Kronborg(Department of Biology, University of Copenhagen, Copenhagen,)|2026 Jul 11|PMID: 42436197
細菌はリソースを制限する生理的状態(ストリンジェント応答)に入ることでファージ感染を制限できるが、ファージがこれを克服する仕組みは不明であった。本研究では、アラルモンシグナリング(ppGpp/pppGpp)がバクテリオファージT7の感染を制約すること、そしてポータルタンパク質Gp8がRelAおよびSpoTと相互作用してそのシンテターゼ活性を阻害することで、この制約に対抗することを明らかにした。この発見は、ファージが宿主の生理的防御を克服する新たなメカニズムを示している。
PubMed →
Jie Pang(State Key Laboratory of Biotherapy, National Clinical Resear)|2026 Jul 11|PMID: 42436156
アシネトバクター・バウマニイは抗菌薬耐性が深刻な最重要病原体である。本研究では、A. バウマニイに選択的に作用する新規抗菌薬アバウシンがリポタンパク質輸送体LolDFを阻害することで抗菌活性を示すメカニズムを解明した。クライオ電子顕微鏡構造解析によりアバウシンがLolDF空洞内に対称的に2分子結合することが明らかになり、カルバペネム耐性株(CRAB)に対してin vitroおよびマウス肺炎モデルで強力な活性が確認された。
PubMed →
Leonid Andronov(Department of Chemistry, Stanford University, Stanford, CA, )|2026 Jul 11|PMID: 42436145
SARS-CoV-2感染細胞において、3D単分子局在顕微鏡を用いた多色超解像アトラスを構築し、ウイルス複製オルガネラの空間的構造を解析した。nsp5(3CLpro)はDMVルーメン内の孔付近に局在し、nsp7-nsp16はnsp4の内側に配置されており、プロテアーゼ依存的な複製オルガネラ成熟モデルが支持された。この研究はコロナウイルス複製機構の基本的な空間原理を明らかにした。
PubMed →
Rosa Dolores Prieto-Utrera(Group for Biomedical Research in Critical Care (BioCritic), )|2026 Jul 11|PMID: 42435583
術後敗血症および敗血症性ショック患者219名を対象とした前向き多施設研究において、免疫機能障害と内皮活性化を統合的にプロファイリングした。高次元スペクトルフローサイトメトリーを用いた循環内皮サブ集団の解析により、90日死亡率を予測するバイオマーカーパネルが同定された。この統合アプローチは術後敗血症の早期リスク層別化に有用な可能性がある。
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Aswathy Narayanan(Molecular Mycology Laboratory, Molecular Biology and Genetic)|2026 Jul 10|PMID: 42431934
Candida aurisはWHOが重要優先病原体に指定する多剤耐性真菌であり、その抗真菌薬耐性における構造ゲノム変異の役割は不明であった。全ゲノム解析、コピー数変異スクリーニング、電気泳動核型分析を統合した解析により、セグメント重複と過剰数染色体が抗真菌薬耐性を駆動することが示された。これらの構造的ゲノム変異は点突然変異とは独立した耐性機構として重要である。
PubMed →
Xi Wang(State Key Laboratory of Virology and Biosafety, Wuhan Instit)|2026 Jul 14|PMID: 42418486
ブラコウイルスはバキュロウイルスの経口感染に必須なper os感染因子(PIF)複合体のホモログを8つコードするが、経口感染経路を持たないにもかかわらず宿主細胞への侵入にPIFを利用することが示された。寄生蜂Microplitis mediatorを用いた研究で、PIFがブラコウイルスの鱗翅目宿主細胞への感染および寄生蜂の寄生に必須であることが明らかになった。この発見はブラコウイルスが細胞侵入に独自のPIF依存的機構を進化させたことを示す。
PubMed →
Ivo Melčák(Center for ViroScience and Cure, Laboratory of Biochemical P)|2026 Jul 14|PMID: 42412942
HIV-1カプシドコアは核膜孔複合体(NPC)を通過する際、ヌクレオポリン(NUP)内のFGリピートと直接相互作用する。FG、GLFG、FxFGの3種類のモチーフはNPC軸上で異なる分布を示し、カプシドとの親和性勾配が核内侵入を駆動することが明らかにされた。この知見はHIVの核内移行機構の詳細な理解をもたらす。
PubMed →
Zan Li(School of Public Health (Shenzhen), Shenzhen Campus of Sun Y)|2026 Jul 14|PMID: 42412940
ナイロウイルスの一種であるタッチェンダニウイルス1(TcTV1)の核タンパク質(NP)が、配列非依存的に核酸と結合し、四量体ベースのリボ核タンパク質複合体を形成することが示された。さらに、このNPがエンドヌクレアーゼ活性を持つことが構造解析によって明らかにされた。有効な抗ウイルス療法が存在しないナイロウイルスに対する新たな創薬標的となる可能性がある。
PubMed →
Christina Harprecht(Interfaculty Institute of Biochemistry, University of Tübing)|2026 Jul 14|PMID: 42406959
JCポリオーマウイルス(JCPyV)に対するヒト中和モノクローナル抗体のVP1タンパク質への結合様式をX線結晶構造解析によって解明した。PML関連変異が抗体認識部位であるグリカン受容体結合部位に集中することが確認され、ウイルスが抗体応答を回避するメカニズムが構造的に明らかにされた。これらの知見はJCPyVおよびBKポリオーマウイルスに対するワクチン・抗体療法の開発に有用である。
PubMed →
Samuel W Kazer(Division of Gastroenterology, Hepatology, and Nutrition, Bos)|2026 Jul 13|PMID: 42442360
鼻粘膜は気道への主要なバリアとして、空気中の病原体からの防御に重要な役割を果たす。COVID-19パンデミックを契機とした研究により、上皮細胞と免疫細胞が協調してウイルス感染と戦い、下気道への波及や感染拡大を抑制するメカニズムの解明が進んだ。シングルセルRNAシーケンシングや気液界面モデルなどの技術が、感染解消と記憶形成を規定する細胞状態の高解像度な把握を可能にしている。
PubMed →
Tomás Cervantes Rincón(Institute for Research in Biomedicine, Università della Sviz)|2026 Jul 14|PMID: 42330958
ウエストナイルウイルス(WNV)回復者から中和モノクローナル抗体が単離・同定され、WNVおよび関連オルトフラビウイルスに対して広範な防御活性を示した。I型インターフェロンに対する中和自己抗体の存在は抗ウイルス抗体の発達を妨げないことが示された。特にW010抗体はエンベロープタンパク質ドメインIII内の新規エピトープを標的とし、治療薬候補として有望である。
PubMed →
🟠 自然免疫 Innate Immunity 20 papers
Shota Suzuki(Institute of Integrated Research, Institute of Science Tokyo)|2026 Jul 16|PMID: 42463693
GPR84は免疫細胞に主に発現するオーファンGPCRであり、炎症と代謝において重要な役割を果たす。クライオ電子顕微鏡構造解析により、Gタンパク質偏向アゴニストDL-175結合GPR84-Gi複合体と、アンタゴニストGLPG1205結合不活性状態の構造が明らかにされた。これらの構造情報と分子動力学シミュレーションを組み合わせ、GPR84の偏向アゴニズムの分子機構が解明された。
PubMed →
Victor Bosteels(Laboratory for ER Stress and Inflammation, VIB Center for In)|2026 Jul 16|PMID: 42463662
従来型1型樹状細胞(cDC1)はアポトーシス細胞の貪食後に恒常性成熟を経るが、その調節機構の詳細は不明であった。本研究では、小胞体ストレスセンサーであるIRE1がcDC1の恒常性成熟に必須の調節因子として同定された。IRE1の活性化はアポトーシス細胞の取り込みとコレステロール流入に依存し、cDC1では基礎活性が高く、IRE1欠損によりcDC1特異的に成熟と生存が障害されることが示された。
PubMed →
Qinghong Fan(Guangzhou Key Laboratory of Clinical Pathogen Research for I)|2026 Jul 16|PMID: 42463654
インターフェロン(IFN)経路は自然免疫によるウイルス防御の中核をなすが、完全なIFN経路欠損がヒトウイルス受容体発現に非依存的にヒトウイルス感染感受性を付与するかは不明であった。本研究では、IFNAR、IFNGR、IFNLRを一度にノックアウトした重篤な自然免疫不全マウスモデル「AGL」を開発した。AGLマウスはアデノウイルス55型を含む多様なヒト呼吸器ウイルスに対して感受性を示し、IFN経路の完全欠損が受容体発現に依存せず感染成立を可能にすることが実証された。
PubMed →
Yanxia Ye(State Key Laboratory of Organ Regeneration and Reconstructio)|2026 Jul 16|PMID: 42462722
霊長類の骨髄老化は造血と免疫を損なうが、長期的なビタミンC(VC)経口補充がその分子・前駆細胞レベルの変化を部分的に抑制することが示された。老化は共通リンパ系前駆細胞(CLP)の著しい減少と骨髄系偏向の造血幹前駆細胞アウトプットを引き起こすが、VC投与はCLPを拡大しこれらの表現型を部分的に回復させた。単一細胞トランスクリプトーム解析により、霊長類骨髄老化の包括的な細胞地図が初めて作成された。
PubMed →
Alex Hong(UC San Francisco, Department of Microbiology & Immunology, 6)|2026 Jul 16|PMID: 42462716
Gabijaはバクテリオファージに対する防御システムであるが、自己・非自己識別のメカニズムは不明であった。本研究では、ファージにコードされたDNA末端結合タンパク質が宿主RecBCDを拮抗することでGabijaの標的になることを示した。Pseudomonas aeruginosaにおいて、GabijaはラムダファージのゲノムDNA環状化と複製を阻止することで抗ファージ防御を実行することが明らかになった。
PubMed →
Garret A FitzGerald(Institute for Translational Medicine and Therapeutics, Perel)|2026 Jul 16|PMID: 42462040
加齢臓器において、プロスタグランジンがマクロファージによる毒性好中球の除去を阻害することが示された。この知見は老化に伴う組織恒常性の破綻メカニズムを明らかにするものである。マクロファージの貪食機能の低下が臓器老化の一因となっていることが示唆された。
PubMed →
Yuting Jessy Tan(Department of Neurology and Neurological Sciences, Stanford )|2026 Jul 16|PMID: 42462036
組織常在性マクロファージ(TRM)による老化好中球の除去障害が、加齢に伴う臓器機能低下の中心的な機構であることが明らかになった。この過程はプロスタグランジンE2(PGE2)受容体EP2シグナルにより制御されており、老齢マウスでEP2シグナルを抑制するとミトコンドリア機能が保たれ、認知低下・フレイル・筋減少症・心臓障害・全身炎症が予防された。血漿プロテオミクス解析により、肝臓が年齢関連免疫変化の主要な供給源であることも示された。
PubMed →
Alexander J Westermann(Department of Microbiology, Biocenter, University of Würzbur)|2026 Jul 21|PMID: 42461768
SAILR(survival associated immune-regulatory RNA)はヒト霊長類特異的な長鎖非コードRNAであり、単球からマクロファージへの分化中に誘導されるが、細菌感染時にはNF-κB依存的に速やかに下方制御される。SAILRはマクロファージの生存を維持するとともに抗菌防御を調節する重要な因子として機能する。本研究はlncRNAが感染条件下における抗原提示細胞の恒常性維持に果たす役割を明らかにした。
PubMed →
Katherine A Boden(Division of Cardiovascular Medicine, Radcliffe Department of)|2026 Jul 15|PMID: 42461723
「訓練免疫」は二次刺激への応答を高める自然免疫細胞の長期的な機能的再プログラム化であるが、多様な訓練刺激が共通の転写プログラムに収束するかどうかは不明であった。本研究では公開されているRNAシーケンシングデータセットを系統的に解析し、複数の訓練免疫モデルに共通する転写・機能プログラムを同定した。これにより、ヒト訓練免疫のコア転写シグネチャーが明らかとなり、自然免疫記憶の分子基盤の理解が深まった。
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Jelena Marjanovic(Wound Healing and Regenerative Medicine Research Program, Dr)|2026 Jul 15|PMID: 42455899
静脈性下腿潰瘍(VLU)の慢性化機序を解明するため、バルクおよびシングルセルRNAシーケンシングを実施した。慢性VLUでは免疫細胞、リンパ管内皮細胞、血管内皮細胞の機能障害が認められ、PTENがこれらの異常を統括するマスターメディエーターとして同定された。PTENは免疫応答、血管新生、リンパ管新生を抑制することで創傷治癒を妨げることが示された。
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Han Wang(Henan Health Commission Key Laboratory of Gastrointestinal C)|2026 Jul 15|PMID: 42455679
TNFAIP8ファミリーの極性タンパク質であるTIPE0とTIPE1の遺伝子欠損マウスは自発的な好中球増多症と肝炎を呈した。TNFAIP8の機能喪失はホスファチジルイノシトールシグナル伝達を変化させ、好中球の寿命と恒常性を制御することが明らかとなった。これらの結果はTNFAIP8ファミリーが好中球ホメオスタシスの分子制御に重要な役割を果たすことを示す。
PubMed →
Dongying Xie(Department of Biology, Hong Kong Baptist University, Hong Ko)|2026 Jul 21|PMID: 42446993
本研究では、線虫Caenorhabditis nigoniにおいて新規の毒素-解毒剤(TA)遺伝子ペアを同定し、解毒剤遺伝子Cni-shls-2が最近のタンデム重複によって生じたC. nigoni固有のF-boxタンパク質であることを明らかにした。このTAシステムは接合後の遺伝的不適合を引き起こし、免疫応答とも関連することが示された。これらの知見は、利己的遺伝因子の起源と持続の分子機構解明に貢献する。
PubMed →
Qiang Guo(Department of Energy Plant Research Laboratory, Michigan Sta)|2026 Jul 21|PMID: 42446975
本研究では、シロイヌナズナにおいてサイクリン依存性キナーゼ8(CDK8)がジャスモン酸シグナル経路による免疫応答と硫黄応答性防御を協調して制御する転写調節因子であることを明らかにした。CDK8はジャスモン酸シグナルが高まる条件下で成長を抑制し種子収量を低下させるとともに、硫黄利用可能性に応じた防御化合物の産生を調節する。これらの知見は、植物の成長と防御のトレードオフにおける栄養状態の役割を理解するうえで重要である。
PubMed →
Machaela Palor(Great Ormond Street Institute of Child Health, University Co)|2026 Jul 13|PMID: 42443171
RSVは乳幼児における重症下気道感染症の主要原因であるが、治療薬は限られている。本研究では、重症RSV気管支炎の乳児の末梢血好中球においてミエロペルオキシダーゼ(MPO)の上昇が対照群と比較して確認された。この知見に基づき、RSV感染における好中球活性化と気道への遊走を再現する前臨床モデルが確立され、治療スクリーニングへの応用が期待される。
PubMed →
N H Kaya(Institute for Zoology and Organismic Interactions, Heinrich-)|2026 Jul 10|PMID: 42431872
イソギンチャクNematostella vectensisにおいて、ネマトソームと呼ばれる運動性多細胞体が細菌を選択的に貪食する自然免疫機構が同定された。ネマトソームは非ネイティブのVibrio株を優先的に取り込む一方、宿主関連の在来菌株の取り込みは抑制される。この選択的な微生物認識はc-JUNによって制御されており、初期分岐動物における自然免疫の特異性を示す。
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Annu Dalal(Department of Biological Sciences and Bioengineering, Indian)|2026 Jul 14|PMID: 42418494
補体アナフィラトキシンC5a由来のデカペプチドEP67は、抗ウイルス・抗菌の文脈で前臨床的に有望な免疫刺激薬候補である。本研究では、EP67がC5aR1を活性化する分子機構と正確な結合様式が構造的に解明された。この知見は、過剰な炎症を引き起こさずに免疫応答を惹起する補体受容体標的薬の合理的設計に貢献する。
PubMed →
Shiliu Feng(School of Chemistry, Chemical Engineering and Biotechnology,)|2026 Jul 14|PMID: 42412937
細菌ペプチドグリカン断片(PGN)がNOD2シグナルを活性化する前に、哺乳類細胞内でNAGKによるリン酸化などの構造的修飾を受けることが明らかにされた。ムラミルジペプチド(MDP)はNOD2の最小アゴニストとして知られているが、細胞内での修飾がNOD2活性化の前提条件であることが示された。この知見は自然免疫活性化におけるPGNの細胞内処理機構の理解を深める。
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Kira L Florczak(Department of Pathology & Immunology, Washington University )|2026 Jul 14|PMID: 42447845
加齢と慢性炎症は造血に影響を与え、骨髄内の造血前駆細胞集団を変化させる。Yaoらは、古典的な2型サイトカインであるインターロイキン4が前駆細胞の運命を再バランス化することで、加齢関連の造血および生理的変化を逆転させることを示した。この研究はIL-4が造血の老化に対する治療的介入の標的となりうることを示唆する。
PubMed →
Yao Wang(Nanhu Laboratory, State Key Laboratory of Biomedical Analysi)|2026 Jul 13|PMID: 42442359
細胞質内のDNA・RNAセンシングは自然免疫において重要な役割を果たすが、その内因性制御機構は不明な点が多かった。内因性代謝産物フラビンアデニンジヌクレオチド(FAD)がcGASおよびRIG-Iの触媒ポケットに直接結合してその活性を抑制し、自己核酸による無菌性炎症を防ぐことが明らかにされた。FADは免疫恒常性を維持する分子ブレーキとして機能し、自然免疫の新たな制御メカニズムを提示する。
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Jingfei Yao(Howard Hughes Medical Institute, Boston Children's Hospital,)|2026 Jul 14|PMID: 42214327
IL-4がSTAT6依存的なシグナルを介して多能性前駆細胞(MPP)のリンパ球系分化を促進し、炎症および加齢による骨髄系への偏りを是正することが示された。IL-4はFLT3の発現を増加させ、IL-4-FLT3-STAT6軸がリンパ球産生の回復に重要であることが明らかになった。この知見は、慢性炎症や老化に伴うリンパ球減少を改善する治療戦略の基盤となりうる。
PubMed →
🔵 獲得免疫 Adaptive Immunity 7 papers
Huili Wang(Pritzker School of Molecular Engineering, The University of )|2026 Jul 16|PMID: 42462709
本研究では、表面タンパク質・タンパク質複合体・mRNAを空間的に同時プロファイリングする新技術「空間近接シーケンシング(Sprox-seq)」を開発した。ヒト扁桃腺と胚中心において32種のタンパク質・528ペアの相互作用・数千のmRNAを空間解像度でマッピングし、組織全体のタンパク質相互作用ネットワークを明らかにした。この手法によりRNA定義の組織構造を再現しつつ、従来法では検出できなかった新たな細胞間相互作用も同定された。
PubMed →
Kewei Ye(Division of Immunology and Respiratory Medicine, Department )|2026 Jul 16|PMID: 42462026
γδT細胞の抗原認識原理はこれまで不明であったが、本研究ではインターロイキン17受容体Aサブユニット(IL17RA)がVδ7+ γδTCRのリガンドとして機能することを同定した。IL17RAとの相互作用は生殖細胞系列にコードされた領域を介して生じ、Vδ7+ γδT細胞のTH1様エフェクタープログラムへの分化を促進した。この発見はγδT細胞の発達と機能に関する基本的な理解を大きく前進させるものである。
PubMed →
Chiara Dionisi(School of Immunology and Microbial Sciences, King's College )|2026 Jul 14|PMID: 42443228
本研究では、ヒト末梢血中のB細胞成熟過程において、T2段階でIgMhi(T2Mhi)とIgMlo(T2Mlo)の二つの発達軌道への分岐が生じることを、バルクおよびシングルセルATAC-seq・CUT&RUN・RNA-seq・CITE-seqにより明らかにした。両軌道はクロマチンアクセシビリティと転写プロファイルの違いによって区別され、そのエピゲノムシグネチャーは成熟B細胞集団にも持続することが示された。これらの知見は、ヒトB細胞の末梢発達における分岐点の分子基盤を明らかにするものである。
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Abishek Vaidya(Department of Immunology and Immunotherapy and Marc and Jenn)|2026 Jul 14|PMID: 42447846
幹細胞様CD4+ T細胞は腫瘍、慢性感染、炎症に対する持続的な免疫応答を支えるが、その維持機構は不明であった。WenらおよびAgestaらは、転写因子EOMESが幹細胞様CD4+ T細胞の維持と分化の重要な制御因子であることを明らかにした。この研究はCD8+ T細胞と同様に、CD4+ T細胞においてもEOMESが幹細胞性の維持に必須であることを示す。
PubMed →
Tanmana Mitra(Immunology and Microbial Pathogenesis Program, Weill Cornell)|2026 Jul 13|PMID: 42442358
持続的な抗原刺激下でのCD8+ T細胞の機能不全は、ミトコンドリア機能の喪失と関連するが、その代謝的メカニズムは不明であった。慢性的なTCR刺激がATP需要を増大させ、ミトコンドリアNADH蓄積、活性酸素種の産生、ミトコンドリア機能障害を引き起こすことが示された。MEK阻害により栄養取り込みとNADH蓄積が低減し、増殖能と抗腫瘍応答が回復することが明らかになった。
PubMed →
Hayden Fisher(Antibody & Vaccine Group, Centre for Cancer Immunology, Scho)|2026 Jul 14|PMID: 42349409
抑制性Fc受容体hFcγRIIBに対するアゴニスト抗体とアンタゴニスト抗体では、受容体との結合親和性および結合幾何学が異なることが示された。アゴニスト抗体は低親和性・高オフレートでhFcγRIIBと結合し、受容体の脂質ラフトへの集積と膜内移動度の低下を誘導する。結晶構造解析とアラニンスキャン変異解析によってアゴニストとアンタゴニストのエピトープの差異が明確化され、hFcγRIIBシグナル制御の分子基盤が解明された。
PubMed →
Lifen Wen(Department of Microbiology and Immunology, The Peter Doherty)|2026 Jul 14|PMID: 42341754
慢性LCMV感染中に、CD62LとPD-1を共発現し疲弊とステム性の両特性を持つCD4+ T細胞前駆体集団(pTh)が同定された。pTh細胞はTox-Myb-Eomesという転写階層によって維持され、Th1・Tfh・細胞傷害性様T細胞へと分化してTh細胞応答を持続させる。この知見は、慢性感染における適応免疫の長期維持機構を解明するものである。
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🟣 自己免疫 Autoimmunity 9 papers
Mitsuhiro Akiyama(Division of Rheumatology, Department of Internal Medicine, K)|2026 Jul 21|PMID: 42461767
強直性脊椎炎などの脊椎関節炎において、CXCR3・IL-7R・GLUT1高発現かつAiolos低発現という代謝的に特異なCD8+ T細胞サブセットが病原性エフェクター機能を担うことが示された。IL-7-JAK-STATシグナルがGLUT1発現とグルコース取り込みを増加させ、転写因子Aiolosの発現を低下させることで炎症を促進する。このIL-7-グルコース-Aiolos軸が脊椎関節炎の病態に関わる新たな分子機序として特定された。
PubMed →
Conor Gruber(Department of Pediatrics, Vagelos College of Physicians and )|2026 Aug 03|PMID: 42461263
I型インターフェロン活性を亢進させる変異はI型インターフェロノパチーと呼ばれる単遺伝子性自己炎症疾患を引き起こす。本研究では、早期発症の生命を脅かす肺胞蛋白症と自己炎症症状を呈する3人の兄弟においてSTAT2の新規ホモ接合変異(R223Q)を発見した。この変異はI型IFNシグナルの伝達とUSP18を介したフィードバック抑制に影響を与え、肺疾患の発症に寄与することが示された。
PubMed →
Robert Clarke(Department of Microbiology, Immunology, and Infectious Disea)|2026 Jul 15|PMID: 42455897
多発性硬化症(MS)モデルマウスにおいて、CNS特異的ペプチド-MHCII分子でコーティングされたナノ粒子が抗原特異的1型制御性T細胞(Tr1)を誘導し、オリゴデンドロサイト新生を促進することが示された。このTr1細胞はアンフィレギュリン-EGFRシグナル経路を介してオリゴデンドロサイト前駆細胞の分化を促進する。この知見はMSにおける神経修復促進療法への新たなアプローチを示唆する。
PubMed →
David L Hölscher(Institute of Pathology, RWTH Aachen University Hospital, Aac)|2026 Jul 14|PMID: 42447753
本研究では、IgA腎症(IgAN)患者1,022名を含む8つの国際コホートを用い、因果的機械学習フレームワークにより個別化コルチコステロイド治療効果を推定した。派生コホートと検証コホートの両方で有効性が確認され、従来の一律治療方針では効果が相反する患者群が存在することが示された。このアプローチはIgAN患者への精密医療実現に向けた重要な一歩となる。
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Valentina Lykhopiy(argenx, Zwijnaarde, Belgium. vlykhopiy@argenx.com.)|2026 Jul 10|PMID: 42431912
制御性T細胞(Treg)の選択的活性化はIL-2シグナルを介した自己免疫疾患や移植拒絶の治療戦略として有望である。IL-2受容体(IL-2R)の三つのサブユニットを同時に標的とする三重特異性抗体を開発し、幾何学的最適化によりTregを従来のT細胞やNK細胞よりも優先的に活性化・増殖させることに成功した。第二のCD25標的VHHドメインの組み込みによりTreg選択性がさらに強化された。
PubMed →
Francesco De Virgiliis(Department of Pathology and Immunology, Faculty of Medicine,)|2026 Jul 14|PMID: 42418495
多発性硬化症のマウスモデルである実験的自己免疫性脳脊髄炎(EAE)において、好中球が症状発現前から血中で増加し、時刻依存的に中枢神経系へ浸潤することが示された。好中球の浸潤はマウスの行動活動期の開始時(夕方)に増加するなど、サーカディアンリズムがEAE病態に重要な役割を果たす。この知見は、多発性硬化症の治療標的として好中球のサーカディアン制御機構が有望であることを示す。
PubMed →
Jennifer A Simonovich(J. Crayton Pruitt Family Department of Biomedical Engineerin)|2026 Jul 14|PMID: 42418487
トリプトファン異化酵素であるインドールアミン2,3-ジオキシゲナーゼ(IDO)をポリエチレングリコール(PEG)化することで循環時間を延長し、全身投与による炎症・自己免疫疾患治療への応用が検討された。PEG-IDOは5つの自己免疫疾患モデルで治療効果を示し、毒性や免疫能の低下なく抗炎症作用を発揮した。この研究はIDOをタンパク質治療薬として全身投与する新たなアプローチを確立するものである。
PubMed →
Yu Gao(Ophthalmology Medical Center, The First Affiliated Hospital )|2026 Jul 14|PMID: 42412947
小テルペノイド化合物コストノリド(COS)が実験的自己免疫性ぶどう膜炎(EAU)モデルにおいて網膜血管内皮炎症を抑制し、疾患の進行を改善することが示された。定量プロテオミクスにより、COSの作用標的としてUSP15が同定され、TNF-α誘導性の接着分子発現を抑制することでT細胞浸潤を阻害することが明らかになった。USP15が自己免疫性ぶどう膜炎の新たな治療標的となりうることが示唆される。
PubMed →
Lai Wang(Hospital for Skin Diseases, Institute of Dermatology, Chines)|2026 Jul 14|PMID: 42134327
T濾胞性ヘルパー(Tfh)細胞の機能にはメバロン酸経路由来のイソプレノイドであるゲラニルゲラニル二リン酸(GGPP)が不可欠であることが示された。GGPP合成酵素(GGPS1)の薬理学的阻害または遺伝的欠損はTfh細胞の生成を障害し、GGTaseIIを介した表面タンパク質の発現維持がB細胞との相互作用に必要であることが明らかになった。この経路の調節はTCR刺激によって制御されており、自己免疫における体液性免疫の制御に関わる新たなメカニズムを提示している。
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🟡 アレルギー Allergy 5 papers
Tingting Qin(Gilbert S. Omenn Department of Computational Medicine and Bi)|2026 Jul 14|PMID: 42449103
アトピー性皮膚炎(AD)患者42名と健常者23名の皮膚シングルセルRNAシーケンシングにより、角化細胞(KC)が主要な疾患関連細胞として同定された。健常皮膚では7段階の線形分化軌跡を示すKCが、AD病変部ではDK7細胞主導の逆行性終末分化を示すことが明らかとなった。APOD、LYZ、SERPINB4が疾患特異的なマーカーとして浮上し、炎症応答異常との関連が示された。
PubMed →
Pauline J M Kuks(Department of Pulmonary Diseases, University of Groningen, U)|2026 Jul 11|PMID: 42435581
好酸球性喘息の診断は通常血中好酸球数に基づくが、一部の患者では血中好酸球数が低いにもかかわらず喀痰好酸球増多(孤立性喀痰好酸球増多)を示す。ATLANTISコホートの事後解析により、この孤立性喀痰好酸球増多患者の臨床表現型が解析された。この亜集団は異なる臨床的特徴を持つ可能性があり、治療戦略の個別化に影響を与え得る。
PubMed →
Svetoslav Chakarov(Shanghai Institute of Immunology, Department of Immunology a)|2026 Jul 10|PMID: 42432364
好酸球は2型免疫やアレルギー疾患における役割に加え、組織恒常性、修復、代謝、宿主防御にも寄与する多機能免疫細胞として再認識されつつある。組織や炎症状態によって顕著な好酸球の不均一性が見られ、均一な短命エフェクター顆粒球という従来の概念に挑戦している。本論文は好酸球の発生、組織適応、機能的特殊化を統合的フレームワークで考察している。
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Rintaro Shibuya(Kimberly and Eric J. Waldman Department of Dermatology, Icah)|2026 Jul 15|PMID: 42456661
耳介皮膚の感覚ニューロンを刺激することで、Alternaria alternata誘導性のアレルギー性気道炎症が抑制される皮膚-肺反射が明らかにされた。迷走神経節から耳介皮膚への感覚投射が同定され、薬理学的・化学遺伝学的・光遺伝学的な耳介感覚ニューロンの活性化が内臓の神経免疫応答を調節することが示された。この外受容性の神経免疫調節機構はアレルギー性気道疾患の新たな治療アプローチとなりうる。
PubMed →
DongUk Lee(Department of Pathology, University of Massachusetts Chan Me)|2026 Jul 14|PMID: 42161270
アレルギー性IgE応答に必須なTfh13細胞の分化メカニズムを解明するため、遺伝学的手法と骨髄キメラアプローチを用いた研究が行われた。排液リンパ節内のILC2(2型自然リンパ球)がIL-4を産生することでTfh13細胞の分化を促進することが明らかになった。この知見は、高親和性の過敏性IgE応答を制御する細胞・分子基盤の理解を深め、アレルギー疾患の新たな治療標的を示唆する。
PubMed →
🩵 ワクチン Vaccines 5 papers
Qian Pan(Frontier Innovation Center, Department of Systems Biology fo)|2026 Jul 21|PMID: 42461762
個別化mRNAネオ抗原ワクチンはがん治療に大きな可能性を持つが、現行のプラスミド発酵とin vitro転写(IVT)に依存した製造プロセスには3か月以上を要し、最適な治療機会を逃すリスクがある。本研究では、DNAテンプレートやIVTを必要としない化学合成RNAオリゴヌクレオチドを用いて、タンパク質をコードするRNAを迅速に製造する新しいアプローチを開発した。この手法により個別化がんワクチンの製造期間を大幅に短縮できる可能性が示された。
PubMed →
So Yeon Cho(Department of Integrative Structural and Computational Biolo)|2026 Jul 21|PMID: 42446980
本研究では、HIV-1 Env膜近傍外部領域(MPER)を標的とする広域中和抗体(bnAbs)である10E8クラスと4E10クラスの膜関与様式と多反応性制御の構造基盤を解明した。10E8クラスは高い中和活性と低い多反応性を示す一方、4E10クラスは広域中和活性が高いが多反応性も高く、その構造的違いが明らかになった。これらの知見はMPERを標的としたHIVワクチン設計と抗体工学に重要な示唆を与える。
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Yiming Zhu(Key Laboratory for Stem Cells and Tissue Engineering, Minist)|2026 Jul 11|PMID: 42436126
骨髄長寿命形質細胞(LLPC)はワクチン誘導抗体の持続的産生を担うが、その生存機構は不明であった。形質細胞特異的条件付きノックアウトマウスを用いた解析により、サイトカイン受容体TACIがミトコンドリアROSを抑制することでLLPCの生存に必須であることが示された。この知見はワクチン誘導免疫記憶の持続性制御に重要な示唆を与える。
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Wanting Wang(Sheng Yushou Center of Cell Biology and Immunology, School o)|2026 Jul 10|PMID: 42418568
腫瘍細胞をin vivoでプログラムすることにより、全抗原スペクトルをカバーする「オールインワン」がんワクチン(UniCVac)が開発された。このワクチンは限られた抗原カバレッジや不十分な抗原提示、免疫抑制性腫瘍微小環境などの課題を克服することを目指している。UniCVacはT細胞応答を惹起し、腫瘍負荷を軽減するための包括的な戦略として機能する。
PubMed →
Ye Zeng(Department of Bioengineering, University of Pennsylvania, Ph)|2026 Jul 14|PMID: 42418483
mRNAベースのがんワクチンにおいて、STING活性化剤を搭載した脂質ナノ粒子プラットフォームが樹状細胞の成熟と交差提示を強化し、細胞傷害性T細胞応答を増強する。免疫学的に「冷たい」腫瘍においても有効な抗腫瘍免疫の誘導が期待される。STINGアゴニストの送達効率の課題を脂質ナノ粒子技術によって克服するアプローチが示されている。
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🌿 腸内環境・マイクロバイオーム Gut 10 papers
Jeffrey P Tingley(Lethbridge Research and Development Centre, Agriculture and )|2026 Jul 16|PMID: 42463638
海藻は炭素循環において重要な役割を果たし、バイオ燃料や飼料としての活用が期待されているが、反芻動物のルーメン内での消化機構は不明であった。本研究では、褐藻サッカリナ・ラティシマが異なる反芻動物種のルーメン生態系内でどのように分解されるかを、生体内・生体外実験系を用いて解析した。地理的・分類学的に異なる反芻動物のマイクロバイオームにおいてアルギン酸塩の分解能が保存されていることが示された。
PubMed →
Ziye Xu(Department of Laboratory Medicine of The First Affiliated Ho)|2026 Jul 15|PMID: 42457693
腸内微生物コミュニティ内の個々の微生物の活性の違いを測定するため、微生物単一細胞トランスクリプトーム解析が注目されている。本研究では微生物単一細胞RNA-seqプラットフォームsmRandom-seqを改良し、雄の糖尿病(db/db)マウスと対照マウスの盲腸・結腸・直腸にわたる腸内容物のトランスクリプトームを解析した。この手法により、腸内微生物の機能状態と宿主の代謝変化との関連が単細胞レベルで明らかにされた。
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Tianming Yu(Division of Gastroenterology and Hepatology, Department of M)|2026 Jul 15|PMID: 42457691
腸管上皮細胞(IEC)は腸内細菌由来の刺激に直接さらされ、宿主と微生物の相互作用において重要な役割を担うが、IECが免疫細胞と連携して恒常性を維持するメカニズムは十分に解明されていなかった。本研究では、腸内細菌代謝産物である酪酸の経口投与がエピジェネティックな修飾を介してCD4+ T細胞における持続的なIL-10産生を誘導し、腸炎に対する長期的な保護をもたらすことが示された。この発見は、腸管上皮と免疫系のクロストークにおける微生物代謝産物の重要性を明らかにした。
PubMed →
Ryota Hirakawa(International Education and Research Center for Food and Agr)|2026 Jul 21|PMID: 42455659
ニワトリにおいてファブリキウス嚢(BF)非依存的なB細胞産生経路が孵化後に腸管の盲腸扁桃で機能することが明らかとなった。この経路ではCXCL12/CXCR4ケモカキシスによりB細胞前駆体が盲腸扁桃へ誘導され、IgA産生B細胞へと分化する。産生されたIgAは腸管バリアを形成し、腸肝ホメオスタシスの維持に重要な役割を担う。
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Kelsey N Thompson(Harvard Chan Microbiome in Public Health Center, Boston, MA,)|2026 Jul 14|PMID: 42448240
本研究では、IBD患者542名を含む2,371件の糞便メタゲノムデータを統合し、クローン病および潰瘍性大腸炎に関連する腸内微生物の種・機能・株レベルの特徴を同定した。メタ解析により、IBDに関連するロバストな微生物シグネチャーが明らかになり、疾患サブタイプ間の違いも確認された。これらの知見は、IBDの病態理解と将来的な微生物叢ターゲット療法の開発に貢献する。
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Minhui Xu(College of Bioscience and Biotechnology, Hunan Agricultural )|2026 Jul 13|PMID: 42437750
プロバイオティクスを用いたバイオニック戦略は炎症性腸疾患(IBD)の治療に期待されるが、胃酸への耐性不足や腸管定着効率の低さが課題であった。本研究では、サンゴ群集の防御・危機感知・組織修復メカニズムに着想を得たコアシェル型バイオニックマイクロカプセルリアクター(MY-E@SS)を開発した。このシステムにより操作された細菌が炎症腸管部位に安全かつ効率的に送達され、IBD治療における有望な結果が示された。
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Shuang Shang(State Key Laboratory of Bioactive Substance and Function of )|2026 Jul 11|PMID: 42436164
腸管幹細胞の数や再生能力は粘膜治癒に重要であり、炎症性腸疾患(IBD)における腸管幹細胞障害のメカニズム解明が求められている。IBDでは一次胆汁酸であるグリコール酸(GCA)の糞便中濃度上昇が特徴的であるが、GCAとIBDの関係は不明であった。本研究では、GCAがTRIB3-ID1軸を阻害することで腸管幹細胞の自己複製を抑制し、大腸炎の進行を促進することを明らかにした。
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Qingang Wu(Zhejiang Provincial Key Laboratory of Pancreatic Disease, Th)|2026 Jul 10|PMID: 42430494
腸内細菌由来の短鎖脂肪酸(SCFA)であるプロピオン酸とブタン酸が、p38α MAPキナーゼに直接結合することでTLRシグナリングを抑制することが示された。SCFAはp38αとTAB1の相互作用を促進し、自己リン酸化によるp38αの活性化を誘導する。活性化されたp38αはTRAF3をリン酸化してTBK1-IRF3経路を阻害し、マクロファージの活性化と腸炎を軽減する。
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Gabriela Rios Martini(Institute of Medical Immunology, Christian-Albrecht-Universi)|2026 Jul 14|PMID: 42447860
共生酵母Candida albicansは、真菌細胞外小胞に富む限られたタンパク質セットを標的とするTh17細胞を誘導する。これらの細胞は主に口腔粘膜に居住するが、T細胞受容体プロファイリングにより口腔と腸管で共有されるクローン型が明らかになった。腸管炎症患者では、C. albicans反応性Th17細胞が病原性の特徴を獲得することが示された。
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Iker Ramírez Lapeña(Department of Visceral Surgery and Medicine, Inselspital, Be)|2026 Jul 14|PMID: 42447849
妊娠は全身免疫を抑制する一方、腸管の適応については不明な点が多かった。Huangらの研究により、生殖が腸管好酸球を増加させ、腸管幹細胞の分化を杯細胞方向にシフトさせ、腸管病原体からの防御を高めることが示された。この現象は妊娠中に始まり、授乳期にピークを迎え、授乳終了後数週間持続する。
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🧠 神経免疫 Neuroimmunology 5 papers
Tommaso Croese(ImmunoBrain Checkpoint Inc, Palm Beach Gardens, FL, USA. tom)|2026 Jul 15|PMID: 42458012
アルツハイマー病(AD)の進行には神経炎症が関与しており、加齢に伴う全身免疫系の機能低下が末梢からの免疫支援を制限することで局所の炎症解消が妨げられる。本第1b相無作為化二重盲検試験では、Fc-エフェクターサイレンシングとFcRn結合を低下させた短半減期抗PD-L1抗体を用いた免疫療法がAD患者において評価された。前臨床データに基づき、PD-L1の一時的な全身遮断が神経炎症の軽減と疾患進行の抑制に関連する可能性が検討された。
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Daniel Y K Wong(Division of Life Science, State Key Laboratory of Nervous Sy)|2026 Jul 21|PMID: 42446992
本研究では、アルツハイマー病(AD)の病態に関与する可溶性ST2(sST2)に着目し、既存薬トラゾドンの再利用によりsST2レベルを調節してAD病理を緩和できる可能性を示した。遺伝学的知見からミクログリアによるアミロイドβ(Aβ)クリアランスの重要性が示されており、sST2はそのシグナル経路の囮受容体として機能する。トラゾドンの投与によりアミロイド病理・免疫機能不全・シナプス障害が改善され、ADの治療戦略として有望であることが示唆された。
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Yan Zhang(Bio-X Institutes, Key Laboratory for the Genetics of Develop)|2026 Jul 14|PMID: 42418497
睡眠遮断(SD)がドーパミン合成の亢進を介して腸のサブ領域における免疫細胞のミトコンドリア逆電子輸送を促進し、活性酸素種(ROS)の蓄積を引き起こすことがDrosophilaで示された。この腸で産生されたROSが脳へとシグナル伝達され、酸化ストレスと炎症を惹起することが明らかになった。この腸-脳ROS軸が、睡眠遮断による致死リスク増加の背景にある分子機構の一端を担う。
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Melvin Daniel Roji(Research Center for Emerging Infections and Zoonoses, Univer)|2026 Jul 14|PMID: 42412932
麻疹ウイルスによる慢性CNS感染はSSPEを引き起こすが、イヌジステンパーウイルス、イルカモルビリウイルス、アザラシジステンパーウイルスなどの動物モルビリウイルスも類似の慢性神経疾患を引き起こすことが示された。これらのウイルスはCNS持続感染において共通の遺伝型・表現型特性を持つことが明らかにされた。動物モルビリウイルスのSSPE様疾患モデルとしての有用性が示唆される。
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Tyler Lewy(Laboratory of Virology and Infectious Disease, The Rockefell)|2026 Jul 14|PMID: 42392076
ウエストナイルウイルス(WNV)感染モデルを用いて、末梢での二本鎖RNA模倣体の感知が脳内に強力な抗ウイルス状態を誘導することが示された。脳内皮細胞が中心的な役割を果たし、I型インターフェロン刺激遺伝子の発現を介して神経保護的な抗ウイルス環境を構築する。この知見は、神経侵襲性ウイルス感染における重症化メカニズムの解明に貢献する。
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⚪ その他 Other 18 papers
Yinuo Zhang(Department of Computer and Information Science, University o)|2026 Jul 16|PMID: 42463657
治療用ペプチドは小分子と抗体の利点を兼ね備えるが、複数の開発適性評価が必要であり、特に化学修飾ペプチドを扱える統合プラットフォームが不足していた。本研究では、タンパク質および化学データで訓練された大規模基盤モデルを活用し、標準配列とSMILES表現の両方に対応するユニバーサルな治療用ペプチド特性予測プラットフォーム「PeptiVerse」を開発した。PeptiVerseは複数の開発適性特性を系統的に評価できる統一基盤として機能する。
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Dania Shikara(Dalhousie University, Department of Microbiology and Immunol)|2026 Jul 16|PMID: 42463491
小核RNA U4atacはマイナースプライソソームの中核成分であり、ヒトではその変異がロイフマン症候群などの希少発達障害を引き起こす。本研究では、CRISPR/Cas9によりDrosophila melanogasterのU4atac変異体を作製し、マイナースプライソソーム機能不全モデルを確立した。U4atac変異ホモ接合体は成長・神経発達障害を示すとともに、JAK/STATシグナルの調節異常による造血・免疫応答の変容が観察された。
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Jiaqian Liu(State Key Laboratory for Quality and Safety of Agro-Products)|2026 Jul 15|PMID: 42457690
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Hocine R Hocine(Thoracic Service, Department of Surgery, Memorial Sloan Kett)|2026 Jul 15|PMID: 42457686
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Marian Dominguez-Mirazo(School of Biological Sciences, Georgia Institute of Technolo)|2026 Jul 17|PMID: 42455954
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Jinhua Qin(Beijing Institute of Radiation Medicine, Beijing 100850, Chi)|2026 Jul 17|PMID: 42455952
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Surjendu Bikash Dutta(Biomolecular Photonics, Faculty of Physics, University of Bi)|2026 Jul 17|PMID: 42455931
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William Putzbach(Department of Biochemistry and Molecular Genetics, College o)|2026 Jul 17|PMID: 42455928
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Yuan Fang(College of Plant Science and Technology, Hubei Hongshan Labo)|2026 Jul 17|PMID: 42455924
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Sean W Cutter(Centre for Cardiovascular Biology and Disease Research, La T)|2026 Jul 17|PMID: 42455923
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Kjetil Bjornevik(Department of Nutrition, Harvard T.H. Chan School of Public )|2026 Jul 15|PMID: 42455903
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Ying-Qi Lu(Department of Radiation Oncology, State Key Laboratory of On)|2026 Jul 15|PMID: 42455902
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Adrian Lison(ETH Zurich, Department of Biosystems Science and Engineering)|2026 Jul 11|PMID: 42436148
下水モニタリングはCOVID-19パンデミック中にSARS-CoV-2の伝播追跡に有効であることが示されたが、他の病原体への適用は低濃度や不確かな排泄動態などの課題から困難であった。本研究では、感染動態・病原体排泄・測定ノイズを統合的に考慮するベイズ半機械論的下水モデル「EpiSewer」を開発した。このモデルにより、未加工の下水データから実効再生産数(Rt)や流行増殖率(rt)をリアルタイムで推定することが可能となった。
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Harindra E Amarasinghe(Chinese Academy of Medical Sciences Oxford Institute, Univer)|2026 Jul 11|PMID: 42435580
母体敗血症は世界的に予防可能な死亡の主要原因であるが、妊娠という文脈での生物学的機序は十分に理解されていない。本レビューでは、妊娠と敗血症が共有する免疫学的・転写学的・後成遺伝学的・代謝的経路を統合したモデルを提案した。精密医療アプローチにより、妊娠特異的適応を保持しながら免疫恒常性を回復させる治療戦略の開発を目指している。
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Annabelle Smith(Type 2 Immunity Section, Laboratory of Parasitic Diseases, N)|2026 Jul 10|PMID: 42431911
環境は免疫系の発達と炎症反応の制御に影響を与えるが、野外から屋内実験施設への移行(脱野生化)という大きな環境変化が血液学的パラメータに与える影響は不明であった。アカゲザルの脱野生化過程において、好中球が減少しリンパ球が増加し、TH1応答への偏りとT細胞活性化の増加が観察された。腸内マイクロバイオームでは真菌の存在量が減少するなど、環境変化が免疫・微生物叢の両面に影響することが示された。
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Rebeca Carballar-Lejarazú(Department of Microbiology and Molecular Genetics, Universit)|2026 Jul 14|PMID: 42406963
マラリア媒介蚊であるAnopheles coluzziiおよびA. gambiaeにおいて、Cas9/ガイドRNAベースの遺伝子ドライブ株(AcTP13、AcTP43、AgTP13)の長期安定性と性能が評価された。これらの株はドライブ能と寄生虫抑制特性を長期間維持し、疫学的影響を持つ可能性が示された。遺伝子ドライブによるマラリア感染症の集団レベルでの制御戦略の実現可能性が支持される。
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Max Schwiening(Cambridge Institute for Medical Research, University of Camb)|2026 Jul 14|PMID: 42406961
GCN2欠損マウスモデルおよびマイトマイシンC投与モデルを用いた研究により、肺静脈閉塞症(PVOD)の発症にインターロイキン-6(IL-6)が重要な役割を果たすことが示された。GCN2の欠損が肺血管病変をもたらすメカニズムの解明に貢献し、IL-6が治療標的となりうることが示唆される。致死的な肺高血圧症であるPVODに対する新たな治療戦略への道が開かれる可能性がある。
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Catherine M Phelps(Department of Immunology, University of Pittsburgh School of)|2026 Jul 14|PMID: 42167231
運動は免疫系を多面的に調節することで疾患予防と健康促進をもたらす。急性の運動と継続的なトレーニングは、自然免疫・適応免疫細胞の動員・分化・機能を再編するとともに、骨格筋・脂肪組織・腸内微生物叢などの非免疫組織を介しても免疫応答を形成する。本レビューは、がんや自己免疫疾患を含む疾患文脈における最新知見を統合し、運動の免疫調節機序と治療的応用可能性を概説している。
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📄 Abstract未掲載 21 papers
Max Kozlov()|2026 Jul 16|PMID: 42463937
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()|2026 Jul 16|PMID: 42463881
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Rashida A Ferrand(Clinical Research Department, London School of Hygiene & Tro)|2026 Jul 16|PMID: 42463854
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Xianliang Ke(State Key Laboratory of Virology and Biosafety, Wuhan Instit)|2026 Jul 16|PMID: 42463665
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George Hajishengallis(Department of Basic and Translational Sciences, Penn Dental )|2026 Jul 16|PMID: 42463558
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Karen O'Leary()|2026 Jul 16|PMID: 42463498
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Flora Graham()|2026 Jul 14|PMID: 42458088
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Rachel Fieldhouse()|2026 Jul 15|PMID: 42458087
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Kupcinskas Juozas(Institute for Digestive Research, Lithuanian University of H)|2026 Jul 15|PMID: 42456784
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Constanza Espada(NextGen Center for Influenza and Emerging Infectious Disease)|2026 Jul 14|PMID: 42448718
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Anne Gulland()|2026 Jul 13|PMID: 42443508
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Luojia Yang(Department of Genetics, Yale University School of Medicine, )|2026 Jul 13|PMID: 42443505
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Joëlle St-Pierre(IBD Unit, Division of Gastroenterology and Hepatology, Depar)|2026 Jul 13|PMID: 42442511
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Mahdieh Golzari-Sorkheh(Department of Immunology, University of Toronto, and Biologi)|2026 Jul 21|PMID: 42441861
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Yoo Jane Han(Section of Hematology/Oncology, Department of Medicine, Univ)|2026 Jul 21|PMID: 42441854
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Hao Chi(Department of Quantitative Health Sciences, John A. Burns Sc)|2026 Jul 21|PMID: 42441841
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Hai-Yan Zhou()|2026 Jul 11|PMID: 42435769
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Cong Lan(Key Laboratory for Animal Disease-Resistance Nutrition of Mi)|2026 Jul 11|PMID: 42435582
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Paloma Navarro Negredo()|2026 Jul 14|PMID: 42349408
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146
総論文数
25
腫瘍免疫
21
感染症
20
自然免疫
7
獲得免疫
9
自己免疫
5
アレルギー
5
ワクチン
10
腸内環境・マイクロバイオーム
5
神経免疫
18
その他

Categories

🔴 腫瘍免疫 Tumor Immunology 25 papers
Martin Hutchings(Rigshospitalet and University of Copenhagen, Copenhagen, Den)|2026 Jul 16|PMID: 42463852
This phase 1 trial evaluated escalating doses of englumafusp alfa, a CD19-4-1BBL co-stimulatory molecule, combined with glofitamab in patients with relapsed or refractory B cell non-Hodgkin lymphoma. Obinutuzumab pretreatment was given 7 days before the first glofitamab dose, followed by step-up dosing in cycle 1 and then combination therapy for 11 cycles. The study aimed to address the unmet need for effective off-the-shelf therapies in aggressive B-NHL.
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Boqun Bao(State Key Laboratory of Immune Response and Immunotherapy, t)|2026 Jul 17|PMID: 42463687
Type 1 innate lymphoid cells (ILC1s) are abundant in the adult mouse liver and critical for immune surveillance. Re-analysis of single-cell RNA-seq data revealed high Asb2 expression in liver ILC1s, and conditional ablation of ASB2 in NKp46+ cells impaired ILC1 survival and reduced their numbers in adult livers. Proteomics and RNA-sequencing showed enriched lipid metabolism pathways in ASB2-deficient ILC1s, indicating that ASB2 inhibits lipid accumulation to maintain ILC1 homeostatic fitness and anti-tumor immunity.
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Suisui Hao(Department of Medicine, Keck School of Medicine of Universit)|2026 Jul 16|PMID: 42462829
Colorectal cancers with deficient mismatch repair and microsatellite instability are generally immunogenic and respond to immune checkpoint inhibitors, but a significant fraction do not respond or develop resistance. This study identified a DR5/Ligase 3-mediated feedback loop that perpetuates immunogenicity in dMMR/MSI colorectal cancer. Using syngeneic transplant models and immune cell co-culture assays, the mechanisms underlying MSI-induced antitumor immunity and potential resistance pathways were elucidated.
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William K Decker(Department of Pathology and Immunology, Dan L. Duncan Compre)|2026 Jul 16|PMID: 42462043
A subset of dendritic cells has been found to orchestrate the formation of tertiary lymphoid structures (TLS) in tumor tissues. This finding advances understanding of the cellular mechanisms controlling TLS development in cancer. The role of dendritic cells in TLS formation has important implications for cancer immunotherapy responses.
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Raphaël Mattiuz(Marc and Jennifer Lipschultz Precision Immunology Institute,)|2026 Jul 16|PMID: 42462020
Using spatial transcriptomics and multiplex imaging across human tumors, CCR7+ mature dendritic cells were found to accumulate within tertiary lymphoid structures (TLS). In a mouse non-small cell lung cancer model, early TLS development required IFN-γ-driven type 1 conventional dendritic cell maturation, migration to tumor-draining lymph nodes, and subsequent T cell recruitment. As tumors progressed, TLSs were maintained through ongoing dendritic cell activity, revealing DCs as critical orchestrators of TLS formation and persistence in cancer.
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Qi Zhang(Department of Hepatobiliary and Pancreatic Surgery, the Firs)|2026 Jul 15|PMID: 42457964
GPC3 is highly expressed in hepatocellular carcinoma (HCC) and represents an attractive CAR T cell therapy target, but high TGFβ levels in the tumor microenvironment have limited clinical efficacy. Researchers engineered C-CAR031, GPC3-specific CAR T cells armed with a dominant-negative TGFβ receptor II to overcome immunosuppression, and reported findings from a first-in-human trial in advanced HCC patients. The study demonstrated that TGFβ-resistant CAR T cells can achieve enhanced antitumor activity in this challenging clinical setting.
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Yuki Miyai(Department of Pathology, Nagoya University Graduate School o)|2026 Jul 15|PMID: 42457720
While circulating complement C3 produced by hepatocytes has well-established roles in immune defense, the function of locally produced C3 remains poorly defined. This study found that cancer-associated fibroblast-derived C3, rather than systemic hepatocyte-derived C3, controls the efficacy of immune checkpoint blockade by regulating myeloid cell infiltration in colorectal and lung tumors. CAF-specific C3 knockout mice showed resistance to anti-PD-1 therapy with increased immunosuppressive myeloid infiltration, revealing a novel local complement axis in cancer immunotherapy.
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Zhiwen Hong(Department of Nuclear Medicine, Harbin Medical University Ca)|2026 Jul 14|PMID: 42448675
Fumarylacetoacetate hydrolase (FAH) was identified as upregulated in residual hepatocellular carcinoma (HCC) cells following microwave ablation, functioning as a metabolic checkpoint that promotes relapse. Elevated FAH increased fumarate levels, enhancing tumor cell energy metabolism while impairing CD8+ T cell function and establishing an immunosuppressive tumor microenvironment. A stratified nanoplatform disrupting FAH orchestrated metabolic-immune reprogramming and prevented post-ablation HCC recurrence.
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Shuming Zhang(Department of Biomedical Engineering, Johns Hopkins Universi)|2026 Jul 21|PMID: 42446991
This study developed a calibrated spatial quantitative systems pharmacology model for hepatocellular carcinoma that integrates agent-based modeling to resolve tumor microenvironment architecture at single-cell resolution. The framework identified fibroblasts as key modulators of immunotherapy response in HCC. These findings demonstrate the utility of spQSP models for virtual clinical trials, biomarker discovery, and model-informed drug development.
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Luyao Wang(Ovarian Cancer Cell Laboratory, MRC Weatherall Institute of )|2026 Jul 13|PMID: 42443174
The fallopian tube (FT) is increasingly recognized as the site of origin for high-grade serous ovarian cancer, yet its immune landscape is poorly characterized. Using single-cell RNA and T-cell receptor sequencing, the authors found 18.4% clonal overlap between FT-derived and tumor-infiltrating tissue-resident memory-like T cells (TRMLs), surpassing that of circulating T cells. Shared clonotypes were enriched in exhausted CD8+ T cells, suggesting the FT harbors a precursor immune surveillance network relevant to ovarian cancer prevention.
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E Perpiñán(Roger Williams Institute of Liver Studies, School of Immunol)|2026 Jul 13|PMID: 42443155
Excessive accumulation of regulatory T cells (Tregs) in the tumor microenvironment (TME) suppresses anti-cancer immunity in hepatocellular carcinoma (HCC). The authors found that HCC-infiltrating Tregs activate the Nrf2 pathway in response to the lactate-rich TME, undergoing metabolic reprogramming that promotes their survival and accumulation, in contrast to apoptosis-prone tissue-resident Tregs in non-tumoral liver. Targeting the Nrf2-driven metabolic axis in Tregs represents a promising strategy to reverse immunosuppression in HCC.
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Kapil Saxena(Division of Cancer Medicine, The University of Texas MD Ande)|2026 Jul 21|PMID: 42441847
CD8+ cytotoxic T lymphocytes (CTLs) classically kill tumor cells via TCRαβ recognition of peptide-MHC class I complexes, but pMHC-independent killing also occurs. Using AML as a model, the authors identified CD64 as the receptor enabling TCR-dependent but MHC-independent CTL cytotoxicity of AML cells. These findings clarify the physiological contribution of pMHC-independent killing and may inform new immunotherapeutic approaches for AML.
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Simona Plesselova(Center for Cancer Biology Research, Sanford Research Institu)|2026 Jul 11|PMID: 42436127
High-grade serous carcinoma tumors are characterized by immunologically cold microenvironments driven by hypoxia and extracellular matrix remodeling that disrupt tumor-stromal-immune interactions. Bioengineered patient-derived tumor-immune models were developed to recapitulate physiologically relevant oxygen levels and ECM remodeling by co-culturing cancer cells with cancer-associated stromal and immune components. This platform addresses key limitations of current experimental models for studying tumor-immune dynamics and drug development.
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Haibo Zhang(Cancer Center, Department of Radiation Oncology, Zhejiang Pr)|2026 Jul 10|PMID: 42431878
Microplastics were detected in 52 of 72 hepatocellular carcinoma samples, with polyvinyl chloride (PVC) specifically impairing radiotherapy efficacy. Mechanistically, irradiation enhances histone lactylation, which upregulates HMG-CoA reductase transcription in HCC cells. PVC promotes radioresistance by inhibiting radiotherapy-induced CD8+ T cell differentiation.
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Yuwei Huang(School of Life Science and Technology, ShanghaiTech Universi)|2026 Jul 10|PMID: 42431196
A system was developed using FDA-approved fulvestrant to induce CAR phase separation, enabling precise control of tonic signaling in CAR T cells to optimize antitumor function. This approach addresses key challenges such as tumor relapse from antigen loss and the risk of cytokine storm from constitutively high CAR signaling. Drug-inducible phase separation offers a tunable strategy to balance CAR T cell fitness, cytotoxicity, and safety.
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Maxwell Bannister(Medical Scientist Training Program, Johns Hopkins University)|2026 Jul 14|PMID: 42447848
Metabolic alterations and neutrophils are known to define the pre-metastatic niche, but the mechanistic link between them was unclear. Qian et al. show that endothelial cell-derived palmitate stimulates neutrophils to release lipocalin-2, which disrupts vascular integrity and facilitates lung metastasis. These findings reveal a lipid-mediated axis connecting endothelial metabolism to neutrophil-driven promotion of tumor dissemination.
PubMed →
Massimo Russo(Cancer Inflammation and Immunity, Cancer Research UK Manches)|2026 Jul 14|PMID: 42447847
Extracellular ATP (eATP) is an immunogenic danger signal, but its role in tumor immune evasion was not well characterized. Hu et al. show that in the tumor microenvironment, eATP signals through P2RY2 on cancer cells to activate the COX-PGE2 pathway, resulting in immune suppression and resistance to immunotherapy. These findings identify eATP as an upstream driver of PGE2-mediated immune escape, with potential therapeutic implications.
PubMed →
Yange Gu(Liver Transplantation Center, Department of General Surgery,)|2026 Jul 14|PMID: 42398505
Tumor recurrence after resection and liver transplantation remains a major challenge in hepatocellular carcinoma (HCC). Proteomic profiling of HCC samples with or without recurrence identified the cholesterol esterification enzyme SOAT1 as a driver of immune evasion and cancer recurrence. Genetic or pharmacological inhibition of SOAT1 sensitized liver cancer cells to CD8+ T cell-mediated killing and anti-PD-1 therapy by impairing metabolic and redox resilience.
PubMed →
Zhaoqing Hu(Division Immune Regulation in Cancer, German Cancer Research)|2026 Jul 14|PMID: 42392075
Extracellular ATP accumulates in the tumor microenvironment and is further increased by immunotherapy, where it signals through the purinergic receptor P2RY2 on tumor cells to suppress T cell function independently of adenosine. The eATP-P2RY2 axis drives COX-1/COX-2 expression and downstream prostaglandin E2 accumulation, mediating adaptive resistance to immunotherapy. Genetic or pharmacologic inhibition of P2RY2 reduced this resistance, highlighting it as a potential therapeutic target.
PubMed →
Dong Guo(Zhejiang Provincial Key Laboratory of Pancreatic Disease, th)|2026 Jul 14|PMID: 42379164
Lactate produced through aerobic glycolysis in cancer cells was identified as a potent suppressor of STING-mediated innate immune signaling within the tumor microenvironment. Lactate directly binds the cGAMP-binding domain of STING, inhibiting its activation and subsequent IRF3-dependent cytokine expression. EGFR signaling-driven glycolysis underpins this mechanism, revealing a metabolic pathway by which tumors evade innate immune detection.
PubMed →
Arantxa Agesta(University Toulouse, INSERM, CNRS, Infinity, Toulouse, Franc)|2026 Jul 14|PMID: 42341755
The transcription factor Eomesodermin (Eomes) was found to be essential for CD4+ T helper cell-mediated anti-tumor immunity by orchestrating an exhausted-like Th cell lineage distinct from conventional effector or memory subsets. 4-1BB stimulation enhanced this Eomes-dependent program, promoting effective Th-cell-mediated tumor control. The progenitor subset of this lineage expresses stemness markers, representing a potential therapeutic target in cancer immunotherapy.
PubMed →
Shengduo Pei(Department of Microbiology, Tumor and Cell Biology, Karolins)|2026 Jul 14|PMID: 42296966
Neutrophils were found to be major suppressors of cancer immunotherapy responses targeting T cells or myeloid cells, as demonstrated using neutropenic mice. Neutrophils upregulated PD-L1 in response to immunotherapy in an interferon gamma-dependent manner, and depleting this PD-L1-expressing population improved treatment outcomes. These findings identify type II interferon-driven neutrophil PD-L1 expression as a key mechanism of immunotherapy resistance.
PubMed →
Elizabeth S Borden(Department of Dermatology, College of Medicine-Phoenix, Univ)|2026 Jul 14|PMID: 42276071
Analysis of cutaneous squamous cell carcinomas from immunocompetent and immunosuppressed patients revealed that high-immune-infiltrate tumors in immunocompetent patients had lower overall and clonal mutational burdens, consistent with T cell-mediated immunoediting. Tumor mutational signatures were similar across groups, indicating that immunoediting selectively restricts clonal neoantigens rather than altering mutational processes. This study provides direct evidence that immunoediting shapes the antigenic landscape of primary, treatment-naive human tumors.
PubMed →
Peng Qian(State Key Laboratory of Pharmaceutical Biotechnology, Depart)|2026 Jul 14|PMID: 42034064
Triple-negative breast cancer establishes a palmitic acid-enriched lung microenvironment that drives tumor cell extravasation and colonization during pre-metastatic niche formation. Pulmonary endothelial cells take up palmitic acid, which reprograms neutrophil-endothelial interactions and compromises vascular integrity to facilitate metastasis. These findings highlight lipid-mediated metabolic reprogramming as a key regulator of neutrophil function and vascular barrier integrity in breast cancer lung metastasis.
PubMed →
Bowie Yik-Ling Cheng(Institute for Immunity, Transplantation and Infection, Stanf)|2026 Jul 14|PMID: 42034063
Transient pharmacologic inhibition of complex N-glycan biosynthesis in host cells, termed glycoengineering, enhances FcγRIIIa-IgG interactions and improves the in vivo efficacy of multiple depleting therapeutic monoclonal antibodies. In preclinical models, glycoengineering boosted α-CD20-mediated tumor clearance and survival through FcγRIIIa- and NK cell-dependent mechanisms, and also enhanced anti-CD25-mediated depletion of intratumoral regulatory T cells in B16-F10 melanoma. This strategy is compatible with antibodies already engineered for heightened potency, offering a broadly applicable approach to improving cancer antibody therapy.
PubMed →
🟢 感染症 Infection 21 papers
Zihao Gao(The Center for Bioinformatics and Computational Biology, Sha)|2026 Jul 16|PMID: 42463489
The ecology of environmental RNA viruses in human-associated settings remains largely unexplored. Analysis of 2922 metatranscriptomic samples from urban and peri-urban environments across 102 cities in 31 countries led to the construction of the Urban and Peri-urban RNA Virus Atlas (UPVAtlas), comprising 54,945 RNA viruses, 77% of which were previously unobserved. This atlas characterizes the diversity and distinctive features of the global RNA virome in human-dense and surrounding environments.
PubMed →
Yongkun Chen(Guangdong Provincial Key Laboratory of Infection Immunity an)|2026 Jul 16|PMID: 42462284
This observational case-control study investigated whether autoantibodies neutralizing type I interferons (IFN-I) predispose individuals to zoonotic H7N9 avian influenza infection. IFN-I-neutralizing autoantibodies were identified as a host susceptibility factor for H7N9 infection, analogous to previously identified loss-of-function MxA variants. These findings suggest that impaired IFN-I signaling, whether genetic or autoimmune in origin, is a key determinant of the species barrier for avian influenza.
PubMed →
Roger J Brüggemann(Department of Pharmacy, Pharmacology and Toxicology, and Rad)|2026 Jul 16|PMID: 42462281
Andes virus (ANDV) is unique among hantaviruses in enabling person-to-person transmission, raising concerns about post-exposure prophylaxis (PEP) given its high case fatality rate. Ribavirin demonstrates antiviral activity against hantaviruses in vitro and in animal models, but clinical evidence supporting its use as PEP for ANDV exposure remains extremely limited. This viewpoint summarizes available evidence and discusses the rationale for ribavirin PEP following high-risk household, healthcare, or laboratory ANDV exposures.
PubMed →
Emma T R Kelly(Department of Biochemistry, McGill University, Montréal, QC )|2026 Jul 21|PMID: 42455676
Two types of macrolide esterases that confer antibiotic resistance by hydrolyzing the macrolactone ester bond were structurally and biochemically characterized. The study revealed that hydration and hydrolysis reactions define their distinct catalytic mechanisms and resistance profiles. These enzymes are broadly disseminated among pathogenic, animal-associated, and environmental bacteria, representing a One Health concern.
PubMed →
Rotem Gross(Institute for Biological Physics, Department of Physics, Uni)|2026 Jul 21|PMID: 42455658
Experiments and mathematical modeling were integrated to investigate how Escherichia coli populations collectively survive cefotaxime (CTX) challenge through beta-lactamase-mediated drug degradation. At near-lethal CTX concentrations, complex dynamics including initial biomass growth were observed, driven by both intracellular and extracellular antibiotic degradation. The study clarifies the distinct contributions of intra- and extracellular beta-lactamase activity to collective antibiotic resistance.
PubMed →
Z Chaudhry(Wellcome Sanger Institute, Cambridge, UK. zc2@sanger.ac.uk.)|2026 Jul 15|PMID: 42448697
Gut resistome profiling using next-generation sequencing enables untargeted detection of antimicrobial resistance (AMR) genes within microbial communities, overcoming limitations of traditional surveillance methods. This approach reveals the acquisition, transfer, and persistence of resistance genes and provides early warning signals for emerging resistance. The review synthesizes advances in the field and discusses how resistome data can inform clinical risk assessment.
PubMed →
Jing Shi(Department of pathogen biology, School of Medicine, Nanjing )|2026 Jul 14|PMID: 42448686
The cryo-EM structure of the DosR-dependent transcriptional activation complex (DosR-TAC) from Mycobacterium tuberculosis, comprising RNA polymerase, DosR, and hypoxic promoter DNA, was determined. Two DosR monomers form a symmetric dimer through N-terminal receiver domains and distinct alpha-10 helices of their C-terminal DNA-binding domains. These structural insights clarify the molecular mechanism by which DosR regulates latency and may guide development of new antituberculosis drugs.
PubMed →
Amritpal Singh(Emory University School of Medicine, Atlanta, USA; Departmen)|2026 Jul 14|PMID: 42447756
This study developed the CardioMorph Atlas, an atlas-based statistical framework applied to chest X-rays of 8,651 patients including 2,626 with tuberculosis across four cohorts and seven countries, to assess population-level cardiac morphological differences associated with TB. The approach quantified spatial impacts of TB-related inflammation on cardiac structure. These findings provide a novel imaging-based method to understand the link between tuberculosis and cardiovascular complications.
PubMed →
K Shanmugha Rajan(Department of Chemical and Structural Biology, The Weizmann )|2026 Jul 13|PMID: 42443220
This study mapped the landscape of 2'-O-methylation in Leishmania and identified two differentially modified rRNA positions regulated between the parasite's insect and mammalian life stages. Cytosine base-editing of the snoRNA guiding the Am479 modification demonstrated its essential role, as ribosomes lacking this modification could not be detected. These findings reveal the functional importance of stage-regulated rRNA modifications in Leishmania ribosome structure and host adaptation.
PubMed →
Marcell A Zimanyi(Department of Pharmaceutical Chemistry, University of Califo)|2026 Jul 13|PMID: 42443199
Human herpesvirus protease (HHV Pr) must transition from an inactive monomer to an active dimer for viral replication. The authors isolated Fab5, a conformationally selective antibody that recognizes monomeric HCMV protease, and determined a 2.6 Å cryo-EM structure showing it binds a distal 'latch loop' that stabilizes the C-terminal tail in dimers. Structure-guided mutagenesis revealed this latch mechanism is conserved across β- and γ-herpesviruses, highlighting a novel antiviral target.
PubMed →
Kristina Kronborg(Department of Biology, University of Copenhagen, Copenhagen,)|2026 Jul 11|PMID: 42436197
Bacteria can restrict phage replication by entering the stringent response, a growth-restrictive state driven by alarmone nucleotides ppGpp and pppGpp, yet how phages overcome this barrier was unclear. The authors show that alarmone signaling constrains bacteriophage T7 infection and that the portal protein Gp8 counteracts this by engaging RelA and SpoT and inhibiting their synthetase activities. These findings reveal a novel phage counter-defense mechanism against host physiological immunity.
PubMed →
Jie Pang(State Key Laboratory of Biotherapy, National Clinical Resear)|2026 Jul 11|PMID: 42436156
Acinetobacter baumannii is a critical-priority pathogen with increasing antibiotic resistance, including carbapenem resistance. The authors elucidated the mechanism of abaucin, a narrow-spectrum antibiotic targeting A. baumannii's essential lipoprotein transporter LolDF, with cryo-EM structures revealing symmetric binding of two abaucin molecules within the LolDF cavity. Abaucin demonstrated potent activity against clinically isolated carbapenem-resistant strains both in vitro and in a murine pneumonia model.
PubMed →
Leonid Andronov(Department of Chemistry, Stanford University, Stanford, CA, )|2026 Jul 11|PMID: 42436145
A multi-color super-resolution atlas of SARS-CoV-2 proteins and RNA in infected human cells was constructed using 3D single-molecule localization microscopy combined with pair-correlation analysis. The atlas revealed that nsp5 (3CLpro) localizes within the DMV lumen near pores, with nsp7-nsp16 positioned interior to nsp4, supporting a protease-dependent replication organelle maturation model. These findings uncover fundamental spatial principles governing coronaviral replication.
PubMed →
Rosa Dolores Prieto-Utrera(Group for Biomedical Research in Critical Care (BioCritic), )|2026 Jul 11|PMID: 42435583
A prospective multicenter study of 219 postoperative patients with sepsis or septic shock used high-dimensional spectral flow cytometry to characterize circulating immune and endothelial subpopulations. Integrated immune and endothelial profiling identified a biomarker signature predictive of 90-day mortality. This approach highlights the importance of endothelial activation alongside immune dysfunction in the progression to multiorgan failure.
PubMed →
Aswathy Narayanan(Molecular Mycology Laboratory, Molecular Biology and Genetic)|2026 Jul 10|PMID: 42431934
Candida auris, a WHO critical priority fungal pathogen, causes multidrug-resistant outbreaks worldwide, but the role of structural genomic variation in antifungal resistance has been poorly defined. Integrating whole-genome sequencing, genome-wide copy number variation screening, and electrophoretic karyotyping revealed that segmental duplications and supernumerary chromosomes drive antifungal drug resistance in clinical isolates. These findings highlight structural genomic variation as an important mechanism of antifungal resistance independent of point mutations.
PubMed →
Xi Wang(State Key Laboratory of Virology and Biosafety, Wuhan Instit)|2026 Jul 14|PMID: 42418486
Bracoviruses encode eight homologs of per os infectivity factor (PIF) complex proteins essential for baculovirus oral infection, yet bracoviruses lack a per os infection route. Using the parasitoid wasp Microplitis mediator and its lepidopteran hosts, PIFs were shown to be essential for bracovirus infection of host cells and successful wasp parasitism. These findings reveal that bracoviruses have co-opted PIF-dependent mechanisms for host cell entry despite their distinct injection-based delivery route.
PubMed →
Ivo Melčák(Center for ViroScience and Cure, Laboratory of Biochemical P)|2026 Jul 14|PMID: 42412942
HIV-1 capsid cores translocate through the Nuclear Pore Complex by directly interacting with phenylalanine-glycine repeats in nucleoporins distributed along the NPC axis. The three canonical FG motifs show distinct spatial distributions within the NPC, and an affinity gradient generated by differential capsid-NUP interactions supports directional nuclear entry. These findings provide structural insight into the mechanism of HIV nuclear import.
PubMed →
Zan Li(School of Public Health (Shenzhen), Shenzhen Campus of Sun Y)|2026 Jul 14|PMID: 42412940
The nucleoprotein of the nairovirus Tacheng tick virus 1 binds nucleic acids in a sequence-independent manner and assembles into tetramer-based ribonucleoprotein complexes. Structural analysis revealed that the nucleoprotein also possesses endonuclease activity, indicating additional functions beyond genome encapsulation. These findings identify the nucleoprotein as a potential antiviral target for emerging tick-borne nairoviruses.
PubMed →
Christina Harprecht(Interfaculty Institute of Biochemistry, University of Tübing)|2026 Jul 14|PMID: 42406959
X-ray crystallography was used to characterize the binding modes of human monoclonal antibodies targeting JC polyomavirus VP1, revealing that PML-associated mutations cluster in the glycan receptor-binding site to create antibody recognition holes. These structural insights explain how JCPyV variants in PML patients evade the host antibody response. The findings have implications for developing neutralizing antibody therapies against JCPyV and BK polyomavirus.
PubMed →
Samuel W Kazer(Division of Gastroenterology, Hepatology, and Nutrition, Bos)|2026 Jul 13|PMID: 42442360
The nasal mucosa serves as a critical barrier against airborne pathogens and plays key roles in preventing respiratory viral infection and transmission. Studies accelerated by the COVID-19 pandemic have elucidated how epithelial and immune cells cooperate to combat viral infection, limit spread to the lower airways, and reduce onward transmission. Advances in single-cell RNA sequencing and air-liquid interface models are providing high-resolution insights into nasal immune cell states, infection resolution, and memory formation.
PubMed →
Tomás Cervantes Rincón(Institute for Research in Biomedicine, Università della Sviz)|2026 Jul 14|PMID: 42330958
Monoclonal antibodies with potent neutralizing activity against West Nile virus (WNV) and related orthoflaviviruses were isolated from WNV convalescent individuals. Notably, the presence of neutralizing autoantibodies against type I interferons did not impair antiviral antibody development in these patients. The antibody W010 targets a distinct epitope within envelope protein domain III, representing a promising candidate for prophylaxis or treatment.
PubMed →
🟠 自然免疫 Innate Immunity 20 papers
Shota Suzuki(Institute of Integrated Research, Institute of Science Tokyo)|2026 Jul 16|PMID: 42463693
GPR84 is an orphan class A GPCR expressed primarily in immune cells with roles in inflammation and metabolism. Cryo-EM structures of the GPR84-Gi complex bound to the G protein-biased agonist DL-175 and the inactive state bound to antagonist GLPG1205 were determined. Combined with signaling assays and molecular dynamics simulations, these structures provide mechanistic insight into the conformational basis of biased agonism at GPR84.
PubMed →
Victor Bosteels(Laboratory for ER Stress and Inflammation, VIB Center for In)|2026 Jul 16|PMID: 42463662
Conventional type 1 dendritic cells (cDC1s) undergo homeostatic maturation after engulfment of apoptotic cells, involving LXRβ activation, cholesterol efflux, and dampened interferon-stimulated gene expression. The unfolded protein response sensor IRE1 was identified as an essential regulator of this process, with its loss specifically impairing cDC1 but not cDC2 homeostatic maturation and survival. IRE1 activation depends on apoptotic cell uptake and cholesterol influx, explaining its high basal activity in cDC1s.
PubMed →
Qinghong Fan(Guangzhou Key Laboratory of Clinical Pathogen Research for I)|2026 Jul 16|PMID: 42463654
Interferon pathways form the innate barrier against viral invasion, but whether complete IFN pathway deficiency could confer susceptibility to human viruses independent of human receptor expression was unknown. A triple-knockout mouse model (AGL) lacking IFNAR, IFNGR, and IFNLR was developed to address this question. AGL mice became susceptible to diverse human respiratory viruses including adenovirus type 55, demonstrating that complete IFN deficiency enables infection independent of human viral receptor expression.
PubMed →
Yanxia Ye(State Key Laboratory of Organ Regeneration and Reconstructio)|2026 Jul 16|PMID: 42462722
This study mapped the single-cell transcriptomic landscape of primate bone marrow aging and found that long-term oral vitamin C supplementation partially attenuates age-related molecular and progenitor-level decline. Aging caused severe common lymphoid progenitor depletion and myeloid-biased hematopoietic stem and progenitor cell output, which vitamin C administration partially reversed by expanding the CLP compartment. These findings suggest that bone marrow aging in primates is partially modifiable through nutritional intervention.
PubMed →
Alex Hong(UC San Francisco, Department of Microbiology & Immunology, 6)|2026 Jul 16|PMID: 42462716
Gabija is a widely prevalent nuclease-helicase antiphage defense system, but its mechanism for discriminating self from non-self was previously unknown. This study shows that phage-encoded DNA end-binding proteins that antagonize host RecBCD sensitize phages to Gabija-mediated restriction. In Pseudomonas aeruginosa, Gabija limits infection by preventing phage genome circularization and subsequent DNA replication.
PubMed →
Garret A FitzGerald(Institute for Translational Medicine and Therapeutics, Perel)|2026 Jul 16|PMID: 42462040
A prostaglandin has been identified as a key factor that prevents macrophages from clearing toxic senescent neutrophils in aging organs. This finding reveals a mechanism by which tissue homeostasis is disrupted during aging. Impaired macrophage phagocytosis of senescent neutrophils appears to contribute to organ aging.
PubMed →
Yuting Jessy Tan(Department of Neurology and Neurological Sciences, Stanford )|2026 Jul 16|PMID: 42462036
Tissue-resident macrophages (TRMs) were identified as central coordinators of age-related organ decline through impaired clearance of senescent neutrophils, regulated by the prostaglandin E2 receptor EP2. Reducing TRM EP2 signaling in aged mice preserved mitochondrial fitness and prevented cognitive decline, frailty, sarcopenia, cardiac impairment, and systemic inflammation. Plasma proteomics implicated the liver as a major source of age-associated immune changes, highlighting a systemic dimension of macrophage-driven organ aging.
PubMed →
Alexander J Westermann(Department of Microbiology, Biocenter, University of Würzbur)|2026 Jul 21|PMID: 42461768
SAILR is a primate-specific long noncoding RNA induced during monocyte-to-macrophage differentiation that is rapidly downregulated upon bacterial challenge in an NF-κB-dependent manner. It acts as a critical modulator of macrophage viability and antimicrobial defense under infection conditions. This study highlights the role of lncRNAs in balancing pathogen clearance and tissue homeostasis in antigen-presenting cells.
PubMed →
Katherine A Boden(Division of Cardiovascular Medicine, Radcliffe Department of)|2026 Jul 15|PMID: 42461723
Trained immunity refers to long-term functional reprogramming of innate immune cells that enhances responses to secondary challenges, but whether diverse training stimuli converge on shared transcriptional programs was unclear. By systematically analyzing publicly available RNA-sequencing datasets from multiple human trained immunity models, this study identified common baseline and restimulated transcriptional and functional programs. These findings define a core transcriptional signature of human trained immunity, advancing understanding of innate immune memory.
PubMed →
Jelena Marjanovic(Wound Healing and Regenerative Medicine Research Program, Dr)|2026 Jul 15|PMID: 42455899
Bulk and single-cell RNA sequencing were used to investigate the cellular pathology of chronic venous leg ulcers (VLUs), which heal in fewer than half of patients with standard care. scRNA-seq revealed impairments in immune, lymphatic endothelial, and vascular endothelial cells in chronic VLUs. PTEN was identified as a master mediator suppressing immune responses, angiogenesis, and lymphangiogenesis, thereby preventing wound healing.
PubMed →
Han Wang(Henan Health Commission Key Laboratory of Gastrointestinal C)|2026 Jul 15|PMID: 42455679
Genetic deletion of TIPE0 and TIPE1, members of the TNFAIP8 family of polarity proteins, led to spontaneous neutrophilia and hepatitis in mice. TNFAIP8 disruption altered phosphoinositide lipid second messenger levels, revealing a role in regulating neutrophil lifespan and homeostasis. These findings establish the TNFAIP8 family as key regulators of neutrophil biology and immune homeostasis.
PubMed →
Dongying Xie(Department of Biology, Hong Kong Baptist University, Hong Ko)|2026 Jul 21|PMID: 42446993
This study identified a novel toxin-antidote gene pair in the nematode Caenorhabditis nigoni, where the antidote gene Cni-shls-2 arose through recent tandem duplications as a C. nigoni-specific F-box gene. The system generates postzygotic genetic incompatibilities and is linked to immune responses. These findings shed light on the origin and persistence of selfish genetic elements and their evolutionary consequences.
PubMed →
Qiang Guo(Department of Energy Plant Research Laboratory, Michigan Sta)|2026 Jul 21|PMID: 42446975
This study identified CYCLIN-DEPENDENT KINASE 8 (CDK8) as a transcriptional regulator in Arabidopsis thaliana that coordinates jasmonate-induced immunity with sulfur-responsive defense mechanisms. CDK8 restrains growth and reduces seed yield under elevated jasmonate signaling while shaping defense compound production in response to sulfur availability. These findings illuminate how plants integrate nutrient status with growth-defense tradeoffs during immune activation.
PubMed →
Machaela Palor(Great Ormond Street Institute of Child Health, University Co)|2026 Jul 13|PMID: 42443171
RSV is a leading cause of severe lower respiratory tract infections in infants, yet effective therapeutics remain scarce. Peripheral blood neutrophils from infants with severe RSV admitted to the PICU showed elevated myeloperoxidase (MPO) compared to age-matched controls, identifying MPO as a functional biomarker of disease severity. The authors established an in vitro model recapitulating neutrophil activation and airway migration, providing a platform for therapeutic screening.
PubMed →
N H Kaya(Institute for Zoology and Organismic Interactions, Heinrich-)|2026 Jul 10|PMID: 42431872
In the sea anemone Nematostella vectensis, motile multicellular bodies called nematosomes were identified as selective innate immune mediators that differentially process bacteria. Nematosomes preferentially engulf non-native Vibrio isolates while showing reduced uptake of native host-associated strains. This selective microbial colonization control is mediated by the transcription factor c-JUN, revealing specificity within innate immunity of early-diverging animals.
PubMed →
Annu Dalal(Department of Biological Sciences and Bioengineering, Indian)|2026 Jul 14|PMID: 42418494
EP67, a C5a-derived decapeptide, is an advanced immunostimulant candidate with preclinical activity in antiviral and antibacterial contexts that activates the complement receptor C5aR1. The structural basis of C5aR1 activation by EP67 was determined, revealing the molecular mechanism and precise binding mode of this immunostimulant. These findings support rational design of complement receptor-targeting therapeutics that elicit immune responses without excessive inflammation.
PubMed →
Shiliu Feng(School of Chemistry, Chemical Engineering and Biotechnology,)|2026 Jul 14|PMID: 42412937
Bacterial peptidoglycan fragments undergo intracellular structural modifications, including phosphorylation by mammalian N-acetylglucosamine kinase, as a prerequisite for NOD2 activation in mammalian cells. Muramyl dipeptide, long recognized as the minimal NOD2 agonist, requires this intracellular processing step before it can engage the cytosolic sensor. These findings advance understanding of the intracellular handling of pathogen-associated molecular patterns in innate immune signaling.
PubMed →
Kira L Florczak(Department of Pathology & Immunology, Washington University )|2026 Jul 14|PMID: 42447845
Aging and chronic inflammation disrupt hematopoiesis and alter hematopoietic progenitor populations in the bone marrow. Yao et al. demonstrate that interleukin-4, a canonical type 2 cytokine, reverses age-related hematopoietic and physiological decline by rebalancing progenitor cell fates. These findings suggest that IL-4 signaling could be leveraged therapeutically to counteract aging-associated hematopoietic dysfunction.
PubMed →
Yao Wang(Nanhu Laboratory, State Key Laboratory of Biomedical Analysi)|2026 Jul 13|PMID: 42442359
Cytosolic DNA and RNA sensing is central to innate immunity and autoinflammation, but endogenous mechanisms restraining these pathways were incompletely understood. The study identifies the metabolite flavin adenine dinucleotide (FAD) as a molecular brake that directly binds to cGAS and RIG-I, occupying their catalytic pockets to suppress activity and prevent self-nucleic acid-driven sterile inflammation. FAD thus maintains immune homeostasis and represents a novel endogenous regulator of innate nucleic acid sensing.
PubMed →
Jingfei Yao(Howard Hughes Medical Institute, Boston Children's Hospital,)|2026 Jul 14|PMID: 42214327
IL-4 was identified as an extrinsic signal capable of restoring lymphoid lineage commitment in hematopoietic stem and progenitor cells during chronic inflammation and aging by activating a STAT6-dependent transcriptional program in multipotent progenitors. This IL-4-FLT3-STAT6 axis inhibited inflammation-induced myelopoiesis and shifted multipotent progenitor differentiation toward the lymphoid lineage. These findings suggest a therapeutic strategy for reversing lymphopenia associated with chronic inflammation or aging.
PubMed →
🔵 獲得免疫 Adaptive Immunity 7 papers
Huili Wang(Pritzker School of Molecular Engineering, The University of )|2026 Jul 16|PMID: 42462709
Spatial proximity sequencing (Sprox-seq) is a new method for simultaneously profiling surface proteins, protein complexes, and mRNAs while preserving tissue location information. Applied to human tonsils and germinal centers, Sprox-seq mapped 32 proteins, 528 pairwise interactions, and thousands of mRNAs at spatial resolution, recapitulating RNA-defined tissue architecture. This approach revealed novel protein interaction patterns and developmental dynamics within germinal centers that were not detectable by prior methods.
PubMed →
Kewei Ye(Division of Immunology and Respiratory Medicine, Department )|2026 Jul 16|PMID: 42462026
The principles of antigen recognition by γδT cells have long remained enigmatic, but this study identified the IL-17 receptor A chain (IL17RA) as a ligand for Vδ7+ γδT cell antigen receptors. IL17RA promoted Vδ7+ γδT cell differentiation toward a TH1-like effector program through an interaction involving germline-encoded receptor regions. These findings provide fundamental new insight into how endogenous ligands shape γδT cell development and function.
PubMed →
Chiara Dionisi(School of Immunology and Microbial Sciences, King's College )|2026 Jul 14|PMID: 42443228
This study profiled transcriptomic and epigenetic differences between T1, T2Mhi, and T2Mlo immature transitional B cells from human adult and cord blood using bulk and single-cell multi-omics approaches. Distinct accessible chromatin domains were identified that discriminate the two T2 developmental trajectories, with epigenetic signatures persisting in mature B cell populations. These findings reveal the molecular basis of early peripheral B cell lineage bifurcation in humans.
PubMed →
Abishek Vaidya(Department of Immunology and Immunotherapy and Marc and Jenn)|2026 Jul 14|PMID: 42447846
Stem-like CD4+ T cells sustain immune responses against tumors, chronic infections, and inflammation, but the transcriptional regulators governing their maintenance were poorly understood. Wen et al. and Agesta et al. identify EOMES as a critical transcription factor controlling the maintenance and differentiation of stem-like CD4+ T cells. These studies parallel findings in CD8+ T cells, establishing EOMES as a shared regulator of stem-like T cell biology.
PubMed →
Tanmana Mitra(Immunology and Microbial Pathogenesis Program, Weill Cornell)|2026 Jul 13|PMID: 42442358
CD8+ T cell exhaustion during chronic antigen stimulation is associated with mitochondrial dysfunction, but the upstream metabolic mechanisms were unclear. Chronic TCR engagement was found to increase ATP demand, leading to mitochondrial NADH accumulation, reactive oxygen species production, and subsequent mitochondrial failure. MEK inhibition uniquely reduced nutrient uptake and NADH accumulation among proximal TCR signaling components, restoring T cell proliferation and enhancing anti-tumor responses.
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Hayden Fisher(Antibody & Vaccine Group, Centre for Cancer Immunology, Scho)|2026 Jul 14|PMID: 42349409
Agonistic antibodies targeting the inhibitory Fc receptor hFcγRIIB reduce receptor mobility in the plasma membrane and promote clustering into lipid rafts, whereas antagonistic antibodies do not. Agonists display lower binding affinity and higher off rates compared with antagonists, with distinct epitopes identified by crystallography and alanine-scanning mutagenesis. These findings define the structural and biophysical determinants that govern agonistic versus antagonistic activity at hFcγRIIB.
PubMed →
Lifen Wen(Department of Microbiology and Immunology, The Peter Doherty)|2026 Jul 14|PMID: 42341754
A population of CD4+ T cells co-expressing CD62L and PD-1 with features of both exhaustion and stemness was identified as precursor Th (pTh) cells that sustain T helper cell immunity during chronic LCMV infection. These pTh cells are maintained by a Tox-Myb-Eomes transcriptional hierarchy and give rise to Th1, follicular Th, and cytotoxic-like T cells. These findings clarify how CD4+ T cell responses are propagated during chronic infection.
PubMed →
🟣 自己免疫 Autoimmunity 9 papers
Mitsuhiro Akiyama(Division of Rheumatology, Department of Internal Medicine, K)|2026 Jul 21|PMID: 42461767
A metabolically distinct subset of human CD8+ T cells characterized by high CXCR3, IL-7R, and GLUT1 expression and low Aiolos expression was identified as a key mediator of pathogenic inflammation in spondyloarthritis. IL-7-JAK-STAT signaling promotes increased GLUT1 expression and glucose uptake while suppressing Aiolos in these cells. This IL-7-glucose-Aiolos axis represents a novel molecular mechanism driving aberrant CD8+ T cell effector programming in inflammatory disease.
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Conor Gruber(Department of Pediatrics, Vagelos College of Physicians and )|2026 Aug 03|PMID: 42461263
Gain-of-function mutations in type I interferon signaling cause monogenic autoinflammatory disorders known as type I interferonopathies, with severe pulmonary disease increasingly recognized. Three siblings presenting with early-onset, life-threatening pulmonary alveolar proteinosis and autoinflammatory features were found to carry a novel homozygous STAT2 variant (R223Q) that affects both IFN-I signaling and USP18-mediated feedback inhibition. This study expands the clinical and genetic spectrum of interferonopathies and highlights STAT2 as a key regulator of pulmonary homeostasis.
PubMed →
Robert Clarke(Department of Microbiology, Immunology, and Infectious Disea)|2026 Jul 15|PMID: 42455897
Nanoparticles coated with CNS-specific peptide-MHCII molecules were shown to expand antigen-specific type 1 regulatory T cells (Tr1) in a mouse model of experimental autoimmune encephalomyelitis. These Tr1 cells promoted oligodendrogenesis through amphiregulin-EGFR signaling, suggesting a tissue repair mechanism beyond immunosuppression. The findings offer a potential strategy to actively drive remyelination in multiple sclerosis.
PubMed →
David L Hölscher(Institute of Pathology, RWTH Aachen University Hospital, Aac)|2026 Jul 14|PMID: 42447753
Using a causal machine learning framework applied to 1,022 IgAN patients across eight international cohorts, this study estimated individualized treatment effects of systemic corticosteroids in IgA nephropathy. The model, derived and validated across cohorts including VALIGA, CureGN, and NURTuRE-CKD, identified patient subgroups with differential responses, explaining previously conflicting trial results. This work represents a significant advance toward precision medicine in IgAN management.
PubMed →
Valentina Lykhopiy(argenx, Zwijnaarde, Belgium. vlykhopiy@argenx.com.)|2026 Jul 10|PMID: 42431912
Selective activation of regulatory T cells (Tregs) via IL-2 signaling is a promising therapeutic strategy for autoimmune diseases and transplant rejection. Trispecific antibodies simultaneously engaging all three IL-2 receptor subunits were engineered and geometry-optimized to preferentially activate and expand Tregs over conventional T cells and NK cells expressing the dimeric IL-2R. Incorporation of a second CD25-targeting VHH domain conferred further enhanced Treg specificity.
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Francesco De Virgiliis(Department of Pathology and Immunology, Faculty of Medicine,)|2026 Jul 14|PMID: 42418495
In the experimental autoimmune encephalomyelitis (EAE) mouse model of multiple sclerosis, circulating neutrophils significantly increase in blood prior to symptom onset and infiltrate the central nervous system in a time-of-day-dependent manner. Increased CNS infiltration occurs at the onset of the behavioral active phase of the mice, demonstrating that circadian rhythms modulate EAE pathogenesis. Circadian screening of neutrophils reveals novel therapeutic targets for multiple sclerosis.
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Jennifer A Simonovich(J. Crayton Pruitt Family Department of Biomedical Engineerin)|2026 Jul 14|PMID: 42418487
Poly(ethylene glycol) conjugation of indoleamine 2,3-dioxygenase (IDO) extended its circulation time, enabling systemic delivery as a protein therapeutic for inflammatory and autoimmune diseases. PEG-IDO demonstrated therapeutic efficacy in five autoimmune disease models without toxicity or compromise of immunocompetence. This work establishes a systemic IDO-based immunomodulation strategy as a viable approach for treating diverse inflammatory conditions.
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Yu Gao(Ophthalmology Medical Center, The First Affiliated Hospital )|2026 Jul 14|PMID: 42412947
The small terpenoid compound costunolide suppresses retinal endothelial inflammation and disease progression in experimental autoimmune uveitis by targeting USP15 to inhibit TNF-α-induced adhesion molecule upregulation. Quantitative proteomics of human retinal endothelial cells identified USP15 as the molecular target, reducing T cell adhesion and extravasation into the retina. These results suggest USP15 as a novel therapeutic target for autoimmune uveitis.
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Lai Wang(Hospital for Skin Diseases, Institute of Dermatology, Chines)|2026 Jul 14|PMID: 42134327
Geranylgeranyl diphosphate (GGPP), an isoprenoid derived from the mevalonate pathway, was found to be indispensable for Tfh cell generation and function by maintaining surface protein expression necessary for B cell interactions. Pharmacological inhibition or genetic depletion of GGPS1, the enzyme responsible for GGPP biosynthesis, impaired Tfh cell differentiation, with the mechanism involving geranylgeranyl transferase II. TCR engagement modulates this pathway, revealing a novel metabolic checkpoint controlling humoral immunity in both homeostasis and autoimmunity.
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🟡 アレルギー Allergy 5 papers
Tingting Qin(Gilbert S. Omenn Department of Computational Medicine and Bi)|2026 Jul 14|PMID: 42449103
Single-cell RNA sequencing of lesional and non-lesional skin from 42 atopic dermatitis patients and 23 healthy controls identified keratinocytes as the predominant disease-relevant cell type. In healthy skin, keratinocyte differentiation follows a linear seven-stage trajectory, whereas lesional AD skin shows a disrupted, reversed terminal transition driven by DK7 cells. APOD, LYZ, and SERPINB4 emerged as disease-specific markers linked to altered differentiation and inflammatory responses.
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Pauline J M Kuks(Department of Pulmonary Diseases, University of Groningen, U)|2026 Jul 11|PMID: 42435581
Eosinophilic asthma is typically identified by elevated blood eosinophil counts, but some patients exhibit sputum eosinophilia despite low blood eosinophil levels, termed isolated sputum eosinophilia. A post-hoc analysis of the multicenter ATLANTIS cohort characterized the clinical phenotype of patients with this discordant eosinophil pattern. Understanding this distinct subgroup may have implications for targeted treatment strategies in asthma.
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Svetoslav Chakarov(Shanghai Institute of Immunology, Department of Immunology a)|2026 Jul 10|PMID: 42432364
Eosinophils are increasingly recognized as multifunctional immune cells contributing to tissue homeostasis, repair, metabolism, and host defense beyond their canonical roles in type 2 immunity and allergic disease. Substantial heterogeneity across tissues and inflammatory states challenges the view of eosinophils as a uniform population of short-lived effector granulocytes. This review proposes an integrated framework for understanding eosinophil development, tissue adaptation, and functional specialization.
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Rintaro Shibuya(Kimberly and Eric J. Waldman Department of Dermatology, Icah)|2026 Jul 15|PMID: 42456661
A skin-lung reflex was identified in which activation of auricular skin sensory neurons suppresses Alternaria alternata-induced allergic airway inflammation via the vagus nerve. Viral and chemical tracing revealed distinct sensory projections from the vagal ganglia to the auricular skin, and pharmacologic, chemogenetic, and optogenetic stimulation of these neurons modulated visceral neuroimmune responses. These findings uncover an exteroceptive neural circuit regulating allergic airway inflammation and suggest auricular vagal stimulation as a therapeutic strategy.
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DongUk Lee(Department of Pathology, University of Massachusetts Chan Me)|2026 Jul 14|PMID: 42161270
Proallergic Tfh13 cells are required for generating high-affinity anaphylactic IgE responses, yet the mechanisms driving their differentiation were previously unclear. Using orthogonal genetic and bone marrow chimera approaches, this study identified that IL-4-producing ILC2s within draining lymph nodes play a critical role in promoting Tfh13 cell differentiation. These findings reveal a key innate-adaptive immune axis governing allergic disease states and highlight potential therapeutic targets.
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🩵 ワクチン Vaccines 5 papers
Qian Pan(Frontier Innovation Center, Department of Systems Biology fo)|2026 Jul 21|PMID: 42461762
Personalized mRNA neoantigen vaccines hold great promise for cancer therapy, but current production methods relying on plasmid fermentation and in vitro transcription take over three months, potentially missing the optimal therapeutic window. This study developed an IVT-free approach using chemically synthesized protein-encoding RNA oligonucleotides that bypasses DNA templates and IVT steps. This strategy enables rapid manufacturing of personalized cancer vaccines, potentially transforming clinical applicability.
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So Yeon Cho(Department of Integrative Structural and Computational Biolo)|2026 Jul 21|PMID: 42446980
This study elucidated the structural basis of membrane engagement and polyreactivity control in HIV-1 MPER-targeting broadly neutralizing antibodies, comparing the 10E8 class (high neutralization, low polyreactivity) and 4E10 class (broad neutralization, higher polyreactivity). Structural analyses revealed distinct modes of membrane interaction that underlie these differing properties. The findings provide critical insights for rational design of MPER-targeted HIV vaccines and antibody engineering.
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Yiming Zhu(Key Laboratory for Stem Cells and Tissue Engineering, Minist)|2026 Jul 11|PMID: 42436126
Bone marrow long-lived plasma cells (LLPCs) sustain vaccine-induced humoral protection, but the mechanisms governing their survival are poorly understood. Using plasma cell-specific conditional knockout mice, TACI was identified as an essential survival receptor for LLPCs, functioning by inhibiting mitochondrial reactive oxygen species. These findings reveal a novel mechanism controlling the durability of vaccine-induced antibody responses.
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Wanting Wang(Sheng Yushou Center of Cell Biology and Immunology, School o)|2026 Jul 10|PMID: 42418568
A universal 'all-in-one' cancer cell-derived vaccine (UniCVac) was developed by in vivo programming of tumor cells to provide comprehensive antigen spectrum coverage. This approach addresses key challenges in cancer vaccine development including limited antigen coverage, insufficient antigen presentation, and immune suppressive microenvironments. UniCVac is designed to initiate or enhance T cell responses and reduce tumor burden, either independently or in combination with T cell-modulating therapies.
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Ye Zeng(Department of Bioengineering, University of Pennsylvania, Ph)|2026 Jul 14|PMID: 42418483
An mRNA lipid nanoparticle cancer vaccine platform co-delivering multiple STING activators was developed to enhance dendritic cell maturation and cross-presentation, thereby boosting cytotoxic T cell responses. The approach addresses limitations of poor mRNA delivery and inadequate innate immune activation that reduce efficacy in immunologically cold tumors. Combining STING agonists with mRNA delivery in a single nanoparticle system improves antitumor activity.
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🌿 腸内環境・マイクロバイオーム Gut 10 papers
Jeffrey P Tingley(Lethbridge Research and Development Centre, Agriculture and )|2026 Jul 16|PMID: 42463638
Seaweed is important for carbon cycling and has potential as sustainable biomass for biofuel and animal feed, but the mechanisms of its digestion in the rumen were unknown. This study examined how the brown alga Saccharina latissima is catabolized in the rumen ecosystem of two different ruminant species using in vivo and in vitro systems. Alginate foraging was found to be conserved across geographically and taxonomically distinct ruminant microbiomes.
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Ziye Xu(Department of Laboratory Medicine of The First Affiliated Ho)|2026 Jul 15|PMID: 42457693
Microbial single-cell transcriptomics was applied to intestinal contents of male diabetic (db/db) and control mice using the smRandom-seq platform to profile microbial transcriptomes across the cecum, colon, and rectum. Using the species-identification workflow smClassify, the study linked functional states of individual gut microbiota members to metabolic changes in diabetic mice. This approach provides single-cell resolution insights into how gut microbiota function relates to host metabolic disease.
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Tianming Yu(Division of Gastroenterology and Hepatology, Department of M)|2026 Jul 15|PMID: 42457691
Intestinal epithelial cells are the primary interface with luminal microbiota, but the mechanisms by which they communicate with underlying immune cells to maintain homeostasis have been poorly understood. This study demonstrates that oral administration of the gut microbiota metabolite butyrate epigenetically induces sustained IL-10 production in CD4+ T cells, conferring long-lasting protection against intestinal inflammation. These findings reveal how microbiota-derived metabolites license epithelial-T cell crosstalk to establish intestinal immune tolerance.
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Ryota Hirakawa(International Education and Research Center for Food and Agr)|2026 Jul 21|PMID: 42455659
A bursa of Fabricius (BF)-independent B-cell developmental pathway was identified in the gut cecal tonsils of chickens, which predominates after hatching. B-cell progenitors from bone marrow migrate to cecal tonsils via CXCL12/CXCR4-mediated chemotaxis, where they differentiate into IgA-producing B cells. The resulting intestinal IgA barrier was shown to be essential for maintaining gut-liver homeostasis.
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Kelsey N Thompson(Harvard Chan Microbiome in Public Health Center, Boston, MA,)|2026 Jul 14|PMID: 42448240
This study integrated 2,371 stool metagenomes from 542 IBD patients and controls to identify robust gut microbial signatures associated with Crohn's disease and ulcerative colitis. Meta-analysis revealed disease-linked microbial species, protein functions, and strain-level genetic features that were consistent across diverse multinational cohorts. These harmonized findings advance understanding of microbial contributions to IBD pathogenesis and may inform microbiome-targeted therapies.
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Minhui Xu(College of Bioscience and Biotechnology, Hunan Agricultural )|2026 Jul 13|PMID: 42437750
Probiotic-based strategies for inflammatory bowel disease (IBD) are limited by poor gastric acid survival and inefficient intestinal colonization. Inspired by the cooperative defense-sensing-repair mechanism of coral communities, the authors developed a core-shell bionic microcapsule reactor (MY-E@SS) for safe gastrointestinal delivery of engineered bacteria. The multifunctional shell enabled targeted delivery to inflamed intestinal sites, demonstrating therapeutic promise for IBD.
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Shuang Shang(State Key Laboratory of Bioactive Substance and Function of )|2026 Jul 11|PMID: 42436164
Intestinal stem cell renewal is critical for mucosal healing in inflammatory bowel disease (IBD), which is characterized by elevated fecal levels of primary bile acids such as glycocholic acid (GCA). The authors report that GCA inhibits the TRIB3-ID1 axis, suppressing intestinal stem cell self-renewal and accelerating colitis progression. These findings identify a mechanistic link between altered bile acid metabolism and impaired intestinal regeneration in IBD.
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Qingang Wu(Zhejiang Provincial Key Laboratory of Pancreatic Disease, Th)|2026 Jul 10|PMID: 42430494
Short-chain fatty acids (SCFAs) propionate and butyrate suppress Toll-like receptor signaling by directly binding p38α MAP kinase, promoting its interaction with TAB1 and inducing autophosphorylation-mediated activation. Activated p38α phosphorylates TRAF3 at serine 85, inhibiting its K63-linked polyubiquitylation and disrupting TBK1-IRF3 activation. This microbiota-derived metabolite sensing mechanism attenuates macrophage activation and intestinal inflammation.
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Gabriela Rios Martini(Institute of Medical Immunology, Christian-Albrecht-Universi)|2026 Jul 14|PMID: 42447860
Candida albicans-reactive Th17 cells target a restricted set of proteins enriched in fungal extracellular vesicles and predominantly reside in the oral mucosa at homeostasis. TCR profiling revealed shared clonotypes between oral and gut tissues, with C. albicans being a major driver of this repertoire overlap. During intestinal inflammation, these cells adopt pathogenic features, linking oral-gut mucosal immunity to inflammatory disease.
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Iker Ramírez Lapeña(Department of Visceral Surgery and Medicine, Inselspital, Be)|2026 Jul 14|PMID: 42447849
While pregnancy suppresses systemic immunity, its effects on the gut immune environment were previously unclear. Huang et al. demonstrate that reproduction increases intestinal eosinophils, which shift intestinal stem cell fate toward goblet cell production and enhance protection against enteric pathogens. This adaptation begins during pregnancy, peaks at lactation, and persists for weeks after weaning.
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🧠 神経免疫 Neuroimmunology 5 papers
Tommaso Croese(ImmunoBrain Checkpoint Inc, Palm Beach Gardens, FL, USA. tom)|2026 Jul 15|PMID: 42458012
Alzheimer's disease progression involves neuroinflammation that the brain cannot resolve due to age-related systemic immune dysfunction, and transient systemic PD-L1 blockade has shown neuroprotective effects in preclinical models. This phase 1b randomized, double-blind trial evaluated a novel short-lived anti-PD-L1 antibody with Fc-effector silencing and reduced FcRn binding in AD patients. The study aimed to assess the safety and potential efficacy of this immunotherapy approach for attenuating neuroinflammation and disease progression in Alzheimer's disease.
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Daniel Y K Wong(Division of Life Science, State Key Laboratory of Nervous Sy)|2026 Jul 21|PMID: 42446992
This study investigated the repurposing of trazodone to modulate soluble ST2 (sST2), a decoy receptor encoded by IL1RL1 that interferes with microglial amyloid-beta clearance, as a therapeutic strategy for Alzheimer's disease. Trazodone treatment was found to reduce sST2 levels and alleviate multiple AD pathologies including amyloidosis, immune dysfunction, and synaptic impairments. These findings support drug repurposing as a cost-effective approach to target the complex mechanisms underlying AD.
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Yan Zhang(Bio-X Institutes, Key Laboratory for the Genetics of Develop)|2026 Jul 14|PMID: 42418497
Sleep deprivation in Drosophila drives dopamine biosynthesis upregulation, leading to ROS accumulation in gut subregions including the proventriculus and resident hemocytes via mitochondrial reverse electron transport. This gut-derived ROS signal is transmitted to the brain, inducing oxidative stress and inflammation. The gut-brain ROS signaling axis mediated by dopamine-driven immune cell metabolism underlies the increased risk of premature death associated with sleep deprivation.
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Melvin Daniel Roji(Research Center for Emerging Infections and Zoonoses, Univer)|2026 Jul 14|PMID: 42412932
Human measles virus and animal morbilliviruses including canine distemper virus, dolphin morbillivirus, and phocine distemper virus share key genotypic and phenotypic traits that enable chronic central nervous system infection. These viruses cause SSPE-like fatal neurological diseases in their respective hosts, including dogs, cetaceans, and harbor seals. The findings suggest conserved mechanisms of morbillivirus CNS persistence across species.
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Tyler Lewy(Laboratory of Virology and Infectious Disease, The Rockefell)|2026 Jul 14|PMID: 42392076
Using a murine West Nile virus infection model, peripheral sensing of a viral dsRNA mimic in the footpad was found to induce a robust antiviral state within the brain via type I interferon-stimulated genes. Brain endothelial cells were identified as central orchestrators of this neuroprotective antiviral response. These findings illuminate determinants of severe neuroinvasive disease progression caused by neurotropic arboviruses.
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⚪ その他 Other 18 papers
Yinuo Zhang(Department of Computer and Information Science, University o)|2026 Jul 16|PMID: 42463657
Therapeutic peptides offer advantages of both small molecules and antibodies but require evaluation of multiple developability properties, and no unified platform existed for chemically modified peptides. PeptiVerse was developed as a universal platform leveraging large foundational models trained on protein and chemical data, supporting both canonical sequences and SMILES-based representations. This platform enables systematic prediction of therapeutic peptide properties to facilitate drug development.
PubMed →
Dania Shikara(Dalhousie University, Department of Microbiology and Immunol)|2026 Jul 16|PMID: 42463491
The small nuclear RNA U4atac is a core component of the minor spliceosome, and mutations in humans cause rare developmental disorders such as Roifman syndrome characterized by growth restriction and immune deficiency. A Drosophila melanogaster U4atac mutant was generated using CRISPR/Cas9 to model minor spliceosome dysfunction. Homozygous mutants exhibited growth and neurodevelopmental defects along with dysregulated JAK/STAT signaling that modulated hematopoiesis and immune responses.
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Jiaqian Liu(State Key Laboratory for Quality and Safety of Agro-Products)|2026 Jul 15|PMID: 42457690
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Hocine R Hocine(Thoracic Service, Department of Surgery, Memorial Sloan Kett)|2026 Jul 15|PMID: 42457686
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Marian Dominguez-Mirazo(School of Biological Sciences, Georgia Institute of Technolo)|2026 Jul 17|PMID: 42455954
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Jinhua Qin(Beijing Institute of Radiation Medicine, Beijing 100850, Chi)|2026 Jul 17|PMID: 42455952
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Surjendu Bikash Dutta(Biomolecular Photonics, Faculty of Physics, University of Bi)|2026 Jul 17|PMID: 42455931
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William Putzbach(Department of Biochemistry and Molecular Genetics, College o)|2026 Jul 17|PMID: 42455928
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Yuan Fang(College of Plant Science and Technology, Hubei Hongshan Labo)|2026 Jul 17|PMID: 42455924
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Sean W Cutter(Centre for Cardiovascular Biology and Disease Research, La T)|2026 Jul 17|PMID: 42455923
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Kjetil Bjornevik(Department of Nutrition, Harvard T.H. Chan School of Public )|2026 Jul 15|PMID: 42455903
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Ying-Qi Lu(Department of Radiation Oncology, State Key Laboratory of On)|2026 Jul 15|PMID: 42455902
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Adrian Lison(ETH Zurich, Department of Biosystems Science and Engineering)|2026 Jul 11|PMID: 42436148
Wastewater monitoring was effective for tracking SARS-CoV-2 during COVID-19, but estimating transmission parameters for other pathogens is challenging due to lower concentrations, uncertain shedding kinetics, and limited validation data. The authors present EpiSewer, a Bayesian semi-mechanistic wastewater model that jointly accounts for infection dynamics, pathogen shedding, and measurement noise including outliers and non-detects. EpiSewer enables direct real-time inference of the effective reproduction number and epidemic growth rate from raw wastewater data.
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Harindra E Amarasinghe(Chinese Academy of Medical Sciences Oxford Institute, Univer)|2026 Jul 11|PMID: 42435580
Maternal sepsis is a leading cause of preventable death globally, yet its biology within the context of pregnancy remains poorly understood. This review proposes a unifying model for maternal sepsis integrating immune, transcriptomic, epigenetic, and metabolic frameworks to advance precision medicine approaches. The model aims to restore immune equilibrium and control pathological inflammation while preserving pregnancy-specific adaptations.
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Annabelle Smith(Type 2 Immunity Section, Laboratory of Parasitic Diseases, N)|2026 Jul 10|PMID: 42431911
The hematological and immunological consequences of major environmental change were assessed in male rhesus macaques transitioning from an outdoor provisioned environment to an indoor laboratory facility, a process termed dewilding. Dewilding decreased neutrophils and increased lymphocytes, skewing toward a TH1 response with increased T cell activation. Gut microbiome changes including decreased fungal abundance accompanied these immunological shifts, demonstrating broad impacts of environmental transition on immune regulation.
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Rebeca Carballar-Lejarazú(Department of Microbiology and Molecular Genetics, Universit)|2026 Jul 14|PMID: 42406963
Three Cas9/guide RNA-based gene-drive strains in Anopheles coluzzii and Anopheles gambiae were evaluated for long-term stability and performance in suppressing malaria parasite transmission. The strains maintained drive and parasite suppression properties over extended periods, supporting their potential for epidemiological impact. These results advance the feasibility of population modification strategies to control malaria transmission.
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Max Schwiening(Cambridge Institute for Medical Research, University of Camb)|2026 Jul 14|PMID: 42406961
Using genetic Gcn2 knockout mice and a pharmacological mitomycin C model, IL-6 was identified as a critical mediator in the development of pulmonary vascular disease resembling pulmonary veno-occlusive disease. Both models recapitulated key features of PVOD, shedding light on mechanisms linking GCN2 deficiency to pulmonary vascular pathology. These findings suggest IL-6 as a potential therapeutic target in GCN2-mutation-associated PVOD.
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Catherine M Phelps(Department of Immunology, University of Pittsburgh School of)|2026 Jul 14|PMID: 42167231
Exercise modulates the immune system through multiple cellular and molecular mechanisms that underlie its disease-preventive and health-promoting effects. Both acute bouts and chronic training reshape the mobilization, fate, and function of innate and adaptive immune cells, while also reprogramming non-immune tissues such as skeletal muscle, adipose tissue, and the gut microbiota to influence immunity. This review synthesizes recent evidence across healthy and disease contexts, including cancer and autoimmunity, to outline therapeutic opportunities.
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📄 Abstract未掲載 21 papers
Max Kozlov()|2026 Jul 16|PMID: 42463937
Abstract not available
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()|2026 Jul 16|PMID: 42463881
Abstract not available
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Rashida A Ferrand(Clinical Research Department, London School of Hygiene & Tro)|2026 Jul 16|PMID: 42463854
Abstract not available
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Xianliang Ke(State Key Laboratory of Virology and Biosafety, Wuhan Instit)|2026 Jul 16|PMID: 42463665
Abstract not available
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George Hajishengallis(Department of Basic and Translational Sciences, Penn Dental )|2026 Jul 16|PMID: 42463558
Abstract not available
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Karen O'Leary()|2026 Jul 16|PMID: 42463498
Abstract not available
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Flora Graham()|2026 Jul 14|PMID: 42458088
Abstract not available
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Rachel Fieldhouse()|2026 Jul 15|PMID: 42458087
Abstract not available
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Kupcinskas Juozas(Institute for Digestive Research, Lithuanian University of H)|2026 Jul 15|PMID: 42456784
Abstract not available
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Constanza Espada(NextGen Center for Influenza and Emerging Infectious Disease)|2026 Jul 14|PMID: 42448718
Abstract not available
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Anne Gulland()|2026 Jul 13|PMID: 42443508
Abstract not available
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Luojia Yang(Department of Genetics, Yale University School of Medicine, )|2026 Jul 13|PMID: 42443505
Abstract not available
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Joëlle St-Pierre(IBD Unit, Division of Gastroenterology and Hepatology, Depar)|2026 Jul 13|PMID: 42442511
Abstract not available
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Mahdieh Golzari-Sorkheh(Department of Immunology, University of Toronto, and Biologi)|2026 Jul 21|PMID: 42441861
Abstract not available
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Yoo Jane Han(Section of Hematology/Oncology, Department of Medicine, Univ)|2026 Jul 21|PMID: 42441854
Abstract not available
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Hao Chi(Department of Quantitative Health Sciences, John A. Burns Sc)|2026 Jul 21|PMID: 42441841
Abstract not available
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Hai-Yan Zhou()|2026 Jul 11|PMID: 42435769
Abstract not available
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Cong Lan(Key Laboratory for Animal Disease-Resistance Nutrition of Mi)|2026 Jul 11|PMID: 42435582
Abstract not available
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Paloma Navarro Negredo()|2026 Jul 14|PMID: 42349408
Abstract not available
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Lymph nodes now optional.
Science 2026 Jul 16
Tidying up aging organs.
Science 2026 Jul 16
Danger fuels immune escape.
Immunity 2026 Jul 14
Welcome to KodaKoda's Weekly Immunology News. I am so glad you are tuning in today because we have a packed episode full of fascinating science spanning cancer immunotherapy, innate immunity, virology, and even some microbiology discoveries that will genuinely surprise you. Let us dive right in. We are starting with a big one from the world of cancer treatment. Published on July 16th 2026 in Nature Medicine, the paper is titled Englumafusp alfa plus glofitamab in B cell non-Hodgkin lymphoma a phase 1 trial. The first author is Martin Hutchings from Rigshospitalet and the University of Copenhagen in Denmark. So here is the situation. B cell non-Hodgkin lymphoma, which we will call B-NHL, is a type of blood cancer, and when it comes back after treatment or stops responding to it, the options can be really limited. Doctors and patients desperately need effective therapies that are ready to go off the shelf without needing to be custom-made for each individual. This study tackled that problem head on. The trial tested a drug called englumafusp alfa combined with another drug called glofitamab in patients with relapsed or refractory B-NHL. Now englumafusp alfa is what is called a CD19-4-1BBL co-stimulatory molecule. What that means is it is designed to give a kind of extra boost to immune cells, telling them to wake up and attack the cancer more effectively. Think of co-stimulation like a second ignition key that fully starts the immune engine. Glofitamab is a bispecific antibody that brings T cells right up to the cancer cells to kill them. Before starting treatment, patients also received a drug called obinutuzumab to prepare the immune system. Then glofitamab was introduced with careful step-up dosing to manage side effects, followed by eleven cycles of glofitamab together with englumafusp alfa at escalating doses. A total of 134 patients were enrolled. Among them 109 had aggressive B-NHL and 25 had what is called indolent B-NHL which is a slower-growing form. The good news on the safety front is that the maximum tolerated dose of englumafusp alfa was never actually reached, meaning they kept escalating without hitting an unacceptable ceiling of toxicity. There was one dose-limiting toxicity, which was a grade 5 Pneumocystis jirovecii pneumonia, a serious lung infection. Nearly all patients, 98.5 percent, had some adverse events, and grade 3 or 4 events occurred in about 59 percent, which is typical for this kind of intensive cancer treatment. Grade 5 events, meaning fatal ones, occurred in ten patients. Now the efficacy results are where things get really interesting. In the group of patients with aggressive B-NHL who received englumafusp alfa starting on cycle 2 day 8, the overall response rate was 68.7 percent and the complete metabolic response rate was 56.6 percent. Among those who had never previously received chimeric antigen receptor T cell therapy, also known as CAR T therapy, the numbers were even better at 73.2 and 65.9 percent respectively. The study also found pharmacodynamic changes that confirmed englumafusp alfa was actually working in the way it was intended to, supporting its co-stimulatory mode of action. All in all, the authors conclude this combination shows encouraging efficacy along with a safety profile consistent with glofitamab monotherapy. Exciting early data for a challenging disease. Next up we move into the world of structural immunology and receptor pharmacology. Published also on July 16th 2026 in Nature Communications, the paper is titled Mechanistic insight into signal bias by the agonist-dependent conformational dynamics of GPR84. The first author is Shota Suzuki from the Institute of Integrated Research at the Institute of Science Tokyo in Japan. GPR84 is what is called an orphan class A GPCR, which stands for G protein-coupled receptor. The word orphan here just means scientists did not know its natural activating molecule for a long time. What makes GPR84 particularly relevant to our podcast is that it is primarily expressed in immune cells and plays important roles in inflammation and metabolism. Using cryo-electron microscopy, which lets scientists visualize molecular structures at near-atomic resolution, the team determined the structure of GPR84 bound in complex with a G protein, activated by a biased agonist called DL-175. They also determined the structure of GPR84 in its inactive state bound to an antagonist called GLPG1205. Combined with signaling assays and molecular dynamics simulations, these structures mapped out the conformational landscape of GPR84 spanning from its inactive to its active state. Here is the key finding. A molecule called DL-175 creates steric interactions, meaning physical blocking through molecular shape, with a specific residue called L336 6.52 on the receptor. This selectively prevents the conformational changes needed for beta-arrestin recruitment without interfering with G protein activation. In plain terms, the drug can turn on one signaling pathway in immune cells while leaving another off. This is what scientists call biased agonism. The practical takeaway is that these structural insights give drug designers a kind of molecular blueprint for creating GPR84-targeted therapeutics that can be precisely tuned to achieve specific effects in immune cells while minimizing unwanted side effects. Very elegant work. Staying with innate immunity, let us move to a study from Nature Communications dated July 17th 2026. The title is ASB2 inhibits lipid accumulation to promote ILC1 homeostatic fitness and anti-tumor immunity in the mouse liver. The first author is Boqun Bao from the State Key Laboratory of Immune Response and Immunotherapy at the University of Science and Technology of China in Hefei. Type 1 innate lymphoid cells, or ILC1s, are abundant in the adult liver and are really important players in immune surveillance, which is the immune system's ongoing patrol for abnormal or cancerous cells. Despite their importance, the molecular mechanisms that keep ILC1s alive and functional in the liver are not well understood. The researchers re-analyzed published single-cell RNA sequencing data and found something notable, increased expression of a gene called Asb2 specifically in ILC1s from adult mouse livers. When they conditionally knocked out Asb2 in NKp46-positive cells, which targets ILC1s and NK cells, the mice showed impaired ILC1 survival and reduced numbers of these cells in the liver. Using proteomics and bulk RNA sequencing, they found that ASB2-deficient ILC1s had enriched lipid metabolism pathways and increased lipid storage. When they pharmacologically blocked lipid synthesis, they could actually prevent the apoptosis, meaning the programmed cell death, of ASB2-deficient ILC1s in laboratory cultures. This was a real proof-of-concept moment. In a mouse model of colorectal cancer liver metastasis, they found that ILC1s naturally accumulate more lipid when the liver is under tumor attack, and losing Asb2 made the metastasis worse. On the flip side, when they inhibited lipid accumulation in wild-type cancer-bearing mice, the animals lived longer, seemingly because ILC1-mediated anti-tumor immunity was boosted. So ASB2 acts as a kind of gatekeeper regulating lipid metabolism to keep ILC1s healthy and ready to fight tumors. This opens up a potential new angle for ILC1-based cancer therapies targeting liver tumors. Our next paper is from Nature Communications as well, dated July 16th 2026, and it is titled The unfolded protein sensor IRE1 is essential for homeostatic dendritic cell maturation. The first author is Victor Bosteels from the Laboratory for ER Stress and Inflammation at the VIB Center for Inflammation Research in Ghent, Belgium. Conventional type 1 dendritic cells, called cDC1s, are professional antigen presenting cells that play a critical role in the immune system. They undergo what is called homeostatic maturation when they engulf apoptotic cells, meaning cells that have died in an orderly, programmed way. This process is marked by the activation of a transcription factor called LXR-beta, which coordinates cholesterol efflux out of the cell and dampens interferon-stimulated gene expression. This study identifies a new and essential player in this process, a sensor called IRE1. IRE1 is classically known as a sensor of the unfolded protein response, a cellular stress pathway that is triggered when proteins accumulate incorrectly in the endoplasmic reticulum. But here it is doing something different and surprising. When IRE1 was deleted, cDC1s, but not cDC2s, the other major conventional dendritic cell type, showed impaired homeostatic maturation and survival. IRE1 activation in cDC1s depends on apoptotic cell uptake and the resulting cholesterol influx into the cell, which explains why IRE1 has such high baseline activity in these cells. Crucially, instead of triggering a canonical unfolded protein response, IRE1 here activates a steady-state regulated decay program that degrades a microRNA called miR-92a-1. That microRNA would otherwise suppress a cholesterol-efflux transporter called Abcg1. So by degrading this microRNA, IRE1 allows the cell to pump cholesterol out more efficiently. Without IRE1, cDC1s cannot efflux cholesterol properly, and they die at higher rates. This death could be rescued by blocking microRNA synthesis or by treating the cells with reconstituted high-density lipoprotein. The paper establishes IRE1 as a cholesterol sensor in cDC1s and reveals a parallel pathway to LXR that maintains cholesterol homeostasis during dendritic cell maturation. Beautifully mechanistic work. Let us shift gears and talk about a study with major implications for pandemic preparedness. Published in Nature Communications on July 16th 2026, the title is Triple IFN pathway deficiency sensitizes mice to human respiratory virus infection independent of human viral receptor expression. The first author is Qinghong Fan from the Guangzhou Key Laboratory of Clinical Pathogen Research for Infectious Diseases at Guangzhou Medical University in China. Interferon pathways are the frontline innate immune barriers that most viruses encounter when they try to infect a host. Scientists have long known that partial deficiencies in these pathways can make humans or animals more susceptible to infection. But a key unknown was whether completely wiping out all three interferon pathways could make mice susceptible to human viruses even without expressing the specific human receptor those viruses normally need to enter cells. To answer this, the team developed a mouse model called AGL, which stands for triple knockout of IFNAR, IFNGR, and IFNLR. Those are the receptors for type I, type II, and type III interferons respectively. By knocking out all three in one step, they created a mouse with severely compromised innate immunity. The results were striking. These AGL mice became susceptible to a diverse set of human respiratory viruses including adenovirus type 55, which is a double-stranded DNA virus, human monkeypox virus clade IIb, also double-stranded DNA, parainfluenza virus which is a negative-sense single-stranded RNA virus, and the clinically isolated SARS-CoV-2 delta variant which is a positive-sense single-stranded RNA virus. The fact that these infections took hold without the mice expressing the typical human viral receptors suggests that interferon pathways, and particularly the type III IFN pathway, constitute a crucial backup antiviral defense layer. The authors also ran proof-of-concept antiviral drug studies with monkeypox and parainfluenza viruses, highlighting the translational value of this model. The AGL mouse could become a universal platform for studying both emerging and established viruses without needing a specially tailored mouse model for each one. Here is an interesting one from the intersection of microbiology and agriculture. Published in Nature Communications on July 16th 2026, the paper is titled Alginate foraging is conserved in geographically and taxonomically distinct ruminant microbiomes. The first author is Jeffrey Tingley from the Lethbridge Research and Development Centre at Agriculture and Agri-Food Canada. Seaweed is gaining a lot of attention as a sustainable biomass resource with applications in biofuel, human nutrition, and animal feed. But how seaweed actually gets digested in the rumen of livestock has largely been a mystery. The rumen is the first and largest stomach compartment of ruminants like cows and sheep, and it is packed with a complex microbial community that breaks down plant material. The team focused on the brown alga Saccharina latissima and investigated how it is catabolized within the rumen ecosystem of two different ruminant species. They used a combination of animal models, bacterial imaging, multilayered meta-omics analyses, and enzyme biochemistry. The striking finding was that geographically distinct ruminants harbor what are called conserved alginate utilization loci, meaning that the genetic machinery for breaking down alginate, the main structural polysaccharide in brown seaweed, is preserved across ruminant microbiomes regardless of where in the world those animals live. Core enzymes involved in alginate metabolism have been maintained across populations, while some ancillary enzymes appear to be gained or lost through gene duplication or loss events. This conservation indicates that the ruminant microbiome retains a latent capacity to metabolize marine polysaccharides even in animals that have never encountered seaweed. Fascinating from an evolutionary perspective, and potentially very useful for making seaweed a viable and digestible feed supplement for livestock. Moving on, we have a paper from Nature Communications dated July 16th 2026 titled The minor spliceosome component U4atac regulates JAK/STAT signaling to modulate hematopoiesis and immune responses in Drosophila melanogaster. The first author is Dania Shikara from the Department of Microbiology and Immunology at Dalhousie University in Halifax, Canada. This one connects a rare developmental disorder to core immunological pathways through elegant genetics. The small nuclear RNA U4atac is a core component of the minor spliceosome, which is a molecular machine responsible for a specific subset of RNA splicing events in cells. In humans, mutations in U4atac cause rare developmental disorders including Roifman syndrome, which is characterized by growth restriction, brain anomalies, and immune deficiency. To understand what goes wrong mechanistically, the researchers created a Drosophila, that is fruit fly, mutant with CRISPR-Cas9-induced mutations in U4atac. These mutant flies showed growth and neurodevelopmental defects, immunodeficiency, and gastrointestinal symptoms, mirroring the human syndrome. Through bulk RNA sequencing and functional assays, the team found that U4atac mutations affect the splicing of a large set of transcripts involved in innate immunity, hematopoiesis, and intestinal cell functions. A particularly important target was the Drosophila Janus kinase homolog called hopscotch, or Hop. U4atac deficiency reduced Hop expression and caused hematopoietic defects, meaning defects in blood cell formation, at both the embryonic and larval stages. Crucially, the authors also found reduced expression of JAK1 and attenuated JAK/STAT signaling activation in patients with Roifman syndrome. JAK/STAT is an incredibly important signaling pathway in immunity and hematopoiesis. This work identifies disrupted Jak signaling as part of the pathogenesis of what is being called RNU4atac-opathy, which is a potentially actionable insight for future therapeutic development. Now for a big metagenomics study. Published in Nature Communications on July 16th 2026, the paper is titled Diversity and distinctive characteristics of the global RNA virome in urban and peri-urban environments. The first author is Zihao Gao from the Center for Bioinformatics and Computational Biology at East China Normal University in Shanghai. RNA viruses are everywhere, and they are intimately linked to human health. But the ecology of environmental RNA viruses, meaning how they distribute and function in the environments where humans live and work, is deeply underexplored. This study aimed to change that in a big way. The researchers analyzed 2922 metatranscriptomic samples from urban and surrounding environments including transit hubs, hospitals, and banks, alongside peri-urban settings, spanning 102 cities across 31 countries. From this enormous dataset they constructed what they call the Urban and Peri-urban RNA Virus Atlas, or UPVAtlas, containing 54,945 RNA viruses, 77 percent of which had never been previously observed. That is an extraordinary expansion of our knowledge of viral diversity. Phylogenetic reconstruction based on RNA-dependent RNA polymerases from UPVAtlas greatly expanded the evolutionary diversity of known RNA viruses, leading to the identification of two potential candidate phyla, one candidate class, and several previously unclassified evolutionary clades. Host association analyses revealed the ecological complexity of environmental RNA viruses, with diverse vertebrate-related and what are called ESKAPE pathogen-related viruses, ESKAPE being a group of particularly problematic bacteria and their associated phages, underscoring the need for continued monitoring of urban environments to track RNA viral prevalence and dynamics. This work has direct relevance to future public health surveillance and pandemic preparedness. Now here is a study right at the intersection of DNA damage, cancer biology, and immunology. Published in Gastroenterology on July 16th 2026, the title is A DR5/Ligase 3-mediated feedback loop perpetuates immunogenicity in mismatch repair deficient colorectal cancer. The first author is Suisui Hao from the Department of Medicine at the Keck School of Medicine of the University of Southern California. Colorectal cancers with deficient DNA mismatch repair, abbreviated dMMR, and a condition called microsatellite instability or MSI, are generally thought to be intrinsically immunogenic, meaning the immune system more readily recognizes and attacks them. This is why they tend to respond better to immune checkpoint inhibitor therapy. But here is the problem: a significant fraction of dMMR/MSI colorectal cancers do not respond or eventually become resistant to these checkpoint inhibitors, and the underlying mechanisms have been unclear. Using transplant syngeneic tumor models, immune cell co-culture assays, and air-liquid interface culture of tumor-derived organoids, the researchers found that inactivating a gene called Mlh1, which is part of the mismatch repair machinery, causes endoplasmic reticulum stress and subsequent death receptor 5 or Dr5-mediated apoptosis in colorectal tumor cells. That apoptosis then gets amplified by a nuclear protein called Ligase 3 or Lig3, which mediates the release of extrachromosomal circular DNAs, called eccDNAs, from the dying tumor cells. These eccDNAs act as damage-associated molecular patterns that further stimulate immune cell activation. A feedback loop between Dr5 and Lig3 perpetuates both apoptosis and immune activation in Mlh1-deficient tumors. In mice, this feedback mechanism was critical for the response to immune checkpoint inhibitor therapy, and the clinical relevance was supported by a significant association between DR5 or LIG3 expression and the efficacy of checkpoint inhibitor therapy in human cancer patients. This finding reveals a functional link between deficient mismatch repair and anti-tumor immunity, and could offer new biomarkers or combination strategies for improving checkpoint immunotherapy. Let us look at hematopoietic aging now. Published in Cell Stem Cell on July 16th 2026, the paper is titled Vitamin C attenuates primate bone marrow aging at the molecular and progenitor level. The first author is Yanxia Ye from the State Key Laboratory of Organ Regeneration and Reconstruction at the Institute of Zoology, Chinese Academy of Sciences in Beijing. Bone marrow aging leads to impaired hematopoiesis, which is the production of blood cells, and compromised immunity. This is a well-documented problem in older people, but whether it can be modified in primates has not been explored at the single-cell level until now. Using single-cell transcriptomics, the researchers mapped the landscape of primate bone marrow aging and then asked a fascinating question: what does long-term oral vitamin C supplementation actually do to aging bone marrow at the molecular level? They found that aging drives severe depletion of common lymphoid progenitors, which are the precursors to lymphocytes including B cells and T cells, along with a myeloid-biased output from hematopoietic stem and progenitor cells, meaning older marrow tends to favor producing innate immune and myeloid cells over lymphocytes. Vitamin C administration partially offset these phenotypes by expanding the common lymphoid progenitor pool and rebalancing lineage commitment trajectories. This corresponded to an approximately four-year reduction in transcriptomic age estimates, which was cross-validated using an epigenetic clock. Cell-cell communication analyses revealed that vitamin C remodels intercellular signaling, with a particular spotlight on a candidate pathway linked to progranulin, a growth factor signaling protein abbreviated GRN. Human in vitro assays further showed that recombinant progranulin could mimic selected vitamin C-associated molecular actions. These findings delineate the molecular architecture of primate bone marrow aging and nominate potentially modifiable pathways for investigation in future interventional studies. Now into the microbiology of phage defense. Published in Cell Host and Microbe on July 16th 2026, the paper is titled Gabija restricts phage circularization and DNA replication. The first author is Alex Hong from the Department of Microbiology and Immunology at UC San Francisco. Bacteria have evolved sophisticated defense systems against bacteriophages, those viruses that infect bacteria. Famous examples include restriction-modification systems and CRISPR-Cas. But another system called Gabija, which is a highly prevalent nuclease-helicase antiphage system, has remained mechanistically mysterious, particularly in terms of how it distinguishes self from non-self DNA. This study reveals how Gabija works. The key insight is that phage-encoded DNA end-binding proteins that normally antagonize a bacterial complex called RecBCD sensitize phages to Gabija. When Gabija was tested in Pseudomonas aeruginosa against a temperate lambda-like phage, it was found to prevent phage genome circularization and subsequent replication. DNA end-binding complexes, including a phage exonuclease and a single-stranded DNA annealing protein, as well as GamMu dimers that block the host repair complex RecBCD from loading onto DNA ends, were found to be necessary and sufficient to make phages and even plasmids sensitive to Gabija. Mutant phages that evolved to escape Gabija did so by losing these DNA end-binding proteins, which then allowed RecBCD to translocate on the DNA and protect those phages from Gabija. On the bacterial chromosome, RecBCD activity following any linearization event similarly prevents Gabija from targeting bacterial self-DNA. So the self versus non-self discrimination mechanism is elegant: Gabija attacks linear DNA that lacks RecBCD activity, which marks the DNA as foreign. We also have a spectacular methods paper. Published in Cell on July 16th 2026, the paper is titled Spatial proximity sequencing maps developmental dynamics in the germinal center. The first author is Huili Wang from the Pritzker School of Molecular Engineering at the University of Chicago. The germinal center is a specialized structure in lymphoid tissues where B cells undergo rapid proliferation, mutation, and selection to produce high-affinity antibodies. Understanding the complex cellular dynamics within germinal centers is a central goal of modern immunology. This paper introduces a technology called Sprox-seq, which stands for spatial proximity sequencing. It allows simultaneous profiling of surface proteins, protein complexes, and mRNAs, all while recording the spatial tissue location of each molecule. The team profiled 32 proteins, 528 pairwise protein interactions, and thousands of mRNAs across human tonsil tissue including germinal centers. Mapping tissue-wide protein interactions recapitulated the RNA-defined tissue architecture but also revealed higher interaction complexity in the light zone of the germinal center. Protein interaction trajectories uncovered a B cell state transition that was distinct from what you would predict from RNA data alone. Integrated protein complex and mRNA analysis connected spatially enriched complexes with mitotic pathways. Sprox-seq also captured cell-cell interactions, such as those between B cells and follicular dendritic cells mediated by the receptor complex VLA-4 and VCAM1. This is a genuinely powerful new tool for multi-modal spatial immunology. Now here is an important clinical and epidemiological study. Published in EBioMedicine on July 16th 2026, the paper is titled Autoantibodies against type I interferons in patients with zoonotic H7N9 influenza an observational case-control study. The first author is Yongkun Chen from the Guangdong Provincial Key Laboratory of Infection Immunity and Inflammation at Shenzhen University Medical School. Most birds carry avian influenza A viruses without getting severely ill, but when those viruses jump to humans, known as a zoonotic infection, they can be devastating. The H7N9 subtype of avian influenza has caused significant outbreaks in China. The question this paper asks is: why do some people become infected while others with similar exposure do not? The authors hypothesized that autoantibodies that neutralize type I interferons might predispose people to H7N9 infection, similar to how loss-of-function mutations in antiviral factors have been linked to susceptibility. They screened serum samples from 199 Chinese patients with laboratory-confirmed H7N9 infection and 531 healthy uninfected controls, including poultry workers and close contacts, using a multiplex bead-based assay for IgG autoantibodies against IFNα2, IFNβ1b, and IFNω. Positive samples were then tested for IFN-neutralizing activity in a reporter assay. The results were striking. Neutralizing autoantibodies against at least one type I interferon were detected in 19.1 percent of H7N9 patients but in only 1.1 percent of controls. Most patient sera targeted IFNα2 and/or IFNω. The presence of these neutralizing autoantibodies was associated with 8.2- to 25.3-fold higher odds of H7N9 infection. Autoantibody prevalence increased significantly with age, with 44.8 percent of patients 70 years or older carrying these autoantibodies. All selected sera with neutralizing autoantibodies blocked IFNα2-induced antiviral activity in cell culture. The authors suggest that screening for anti-type-I-interferon autoantibodies could be integrated into surveillance or targeted testing in environments with increased exposure to zoonotic influenza viruses, including potentially H5N1, the panzootic strain of current global concern. Before we close out today, let me briefly touch on several papers that were published without full abstracts that are worth knowing about. Nature published a news piece by Max Kozlov titled Explosive diarrhoea outbreak grips US how researchers are hunting its source, covering an ongoing investigation into a gastrointestinal illness outbreak, very relevant to public health microbiology. From Nature Microbiology, a fascinating study titled Bacillus subtilis cells can escape biofilms by producing a hydrogel that ejects them, which explores how bacteria self-regulate their own biofilm community dynamics. From Nature Immunology, a commentary by George Hajishengallis from Penn Dental Medicine at the University of Pennsylvania titled Innate immunity at the crossroads of protection and pathology insights from the Aegean, which reflects on fundamental questions in innate immunology. Given that this comes from Nature Immunology, a top-tier immunology journal, it is definitely worth seeking out. From Nature Medicine, a news piece by Karen O'Leary titled Mining antigens for a universal malaria vaccine, touching on the ongoing global effort to develop broadly protective malaria vaccines. Also in Nature, Flora Graham's Daily Briefing asks Can regrowing the thymus slow down ageing, which connects directly to adaptive immunity since the thymus is where T cells mature and its involution with age is a core driver of immune decline. Rachel Fieldhouse also writes in Nature with a piece titled Biologists pinpoint how common virus triggers multiple sclerosis, which relates to a long-standing question about how Epstein-Barr virus may initiate the autoimmune cascade that leads to multiple sclerosis. In Gastroenterology, Kupcinskas Juozas from the Lithuanian University of Health Sciences published a piece titled Finding the Signal in the Noise Can Fecal Microbiota Transplantation Deliver for Irritable Bowel Syndrome, which addresses the evolving evidence for microbiome-based therapies. In Cell Metabolism, Fan Yang published a paper titled Ferroptosis heterogeneity in triple-negative breast cancer reveals an innovative immunotherapy combination strategy. Ferroptosis is an iron-dependent form of regulated cell death, and its intersection with tumor immunotherapy is an exciting emerging area. There are also a couple of author corrections this week from Nature Communications regarding SARS-CoV-2 spillover potential in North American cervids, and from Nature Communications regarding molecular mechanisms of receptor recognition and antibody neutralization of coxsackievirus A6, as well as an author correction from Nature Medicine on integrated community-based HIV and sexual and reproductive health services for youth. And there is an expression of concern from the Proceedings of the National Academy of Sciences regarding a paper on Mycobacterium tuberculosis and mesenchymal stem cells, which the scientific community will want to follow. And finally, there was an article title that was unfortunately cut off in our source materials, so we could not cover it fully this week, but we will keep an eye out for it. That is a wrap on this week's KodaKoda's Weekly Immunology News. We covered cancer immunotherapy, innate lymphoid cells, dendritic cell biology, viral infection models, microbiome research, phage defense systems, spatial multi-omics in germinal centers, and autoantibody-mediated susceptibility to avian influenza. What a week for immunology and microbiology. Thank you so much for listening, and we will see you next week with another fresh batch of science.