TY - JOUR KW - Cell death and immune response KW - Influenza virus AU - Avishekh Gautam AU - David F. Boyd AU - Sameer Nikhar AU - Ting Zhang AU - Ioannis Siokas AU - Lee-Ann Van de Velde AU - Jessica Gaevert AU - Victoria Meliopoulos AU - Bikash Thapa AU - Diego A. Rodriguez AU - Kathy Q. Cai AU - Chaoran Yin AU - Daniel Schnepf AU - Julius Beer AU - Carly DeAntoneo AU - Riley M. Williams AU - Maria Shubina AU - Brandi Livingston AU - Dingqiang Zhang AU - Mark D. Andrake AU - Seungheon Lee AU - Raghavender Boda AU - Anantha L. Duddupudi AU - Jeremy Chase Crawford AU - Peter Vogel AU - Christian Loch AU - Martin Schwemmle AU - Lawrence C. Fritz AU - Stacey Schultz-Cherry AU - Douglas R. Green AU - Gregory D. Cuny AU - Paul G. Thomas AU - Alexei Degterev AU - Siddharth Balachandran AB - Severe influenza A virus (IAV) infections can result in hyper-inflammation, lung injury and acute respiratory distress syndrome1–5 (ARDS), for which there are no effective pharmacological therapies. Necroptosis is an attractive entry point for therapeutic intervention in ARDS and related inflammatory conditions because it drives pathogenic lung inflammation and lethality during severe IAV infection6–8 and can potentially be targeted by receptor interacting protein kinase 3 (RIPK3) inhibitors. Here we show that a newly developed RIPK3 inhibitor, UH15-38, potently and selectively blocked IAV-triggered necroptosis in alveolar epithelial cells in vivo. UH15-38 ameliorated lung inflammation and prevented mortality following infection with laboratory-adapted and pandemic strains of IAV, without compromising antiviral adaptive immune responses or impeding viral clearance. UH15-38 displayed robust therapeutic efficacy even when administered late in the course of infection, suggesting that RIPK3 blockade may provide clinical benefit in patients with IAV-driven ARDS and other hyper-inflammatory pathologies. BT - Nature DA - 2024-04 DO - 10.1038/s41586-024-07265-8 IS - 8009 LA - en N2 - Severe influenza A virus (IAV) infections can result in hyper-inflammation, lung injury and acute respiratory distress syndrome1–5 (ARDS), for which there are no effective pharmacological therapies. Necroptosis is an attractive entry point for therapeutic intervention in ARDS and related inflammatory conditions because it drives pathogenic lung inflammation and lethality during severe IAV infection6–8 and can potentially be targeted by receptor interacting protein kinase 3 (RIPK3) inhibitors. Here we show that a newly developed RIPK3 inhibitor, UH15-38, potently and selectively blocked IAV-triggered necroptosis in alveolar epithelial cells in vivo. UH15-38 ameliorated lung inflammation and prevented mortality following infection with laboratory-adapted and pandemic strains of IAV, without compromising antiviral adaptive immune responses or impeding viral clearance. UH15-38 displayed robust therapeutic efficacy even when administered late in the course of infection, suggesting that RIPK3 blockade may provide clinical benefit in patients with IAV-driven ARDS and other hyper-inflammatory pathologies. PY - 2024 SP - 835 EP - 843 T2 - Nature TI - Necroptosis blockade prevents lung injury in severe influenza UR - https://www.nature.com/articles/s41586-024-07265-8 VL - 628 Y2 - 2025-08-06 SN - 1476-4687 ER -