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Host cell Z-RNAs activate ZBP1 during virus infections

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机构: [1]Center for Immunology, Fox Chase Cancer Center, Philadelphia, PA, USA [2]Laboratory of Bioinformatics, Faculty of Computer Science, National Research University Higher School of Economics, 11 Pokrovsky Bulvar, Moscow, Russia 101000 [3]Medical Research Council Translational Immune Discovery Unit, Medical Research Council Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK [4]Department of Microbiology and Immunology, Louisiana State University Health Shreveport, Shreveport, LA 71103, U.S.A. [5]Department of Host-Microbe Interactions, St. Jude Children’s Research Hospital, Memphis, TN, U.S.A. [6]Institute for Virology and Immunobiology, Julius-Maximilians-Universität-Würzburg, Würzburg, Germany [7]Institute of Virology, Hannover Medical School, Carl Neuberg Strasse 1, 30625 Hannover, Germany [8]Laboratory of Hepatic AI Translation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, People’s Republic of China [9]School of Molecular Biosciences, Washington State University, Pullman, WA, U.S.A. [10]Technical University of Munich, School of Medicine & Health, Institute of Virology, Munich, Germany [11]National Institute of Chemistry, Ljubljana, Slovenia [12]School of Biological Sciences, Nanyang Technological University, 637551 Singapore, Singapore [13]Systems Virology, Helmholtz Center Munich, Munich, Germany [14]German Centre for Infection Research (DZIF), Partner site Munich, Germany [15]Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA, U.S.A. [16]Helmholtz Institute for RNA-based Infection Research (HIRI), Würzburg, Germany. [17]Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany [18]Department of General Surgery, West China Hospital, Sichuan University, Chengdu, People’s Republic of China. [19]Liver Transplant Center, Transplant Center, West China Hospital, Sichuan University, Chengdu, People’s Republic of China. [20]InsideOutBio, 42 8th Street, Charlestown, MA, U.S.A
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关键词: Necroptosis HSV-1 IAV Z-RNA Z-DNA dsRNA ZBP1 RIPK3 MLKL DoTT Flipons

摘要:
Herpes simplex virus 1 (HSV-1) and Influenza A viruses (IAV) induce Z-form nucleic acid Binding Protein 1 (ZBP1)-initiated cell death1-8. ZBP1 is activated by Z-RNA1,7,9, and the Z-RNAs which trigger ZBP1 during HSV-1 and IAV infections were assumed to be of viral origin1. However, we show here that host cell-encoded Z-RNAs are major and sufficient ZBP1 activating ligands following infection by these two human pathogens. The majority of cellular Z-RNAs mapped to intergenic endogenous retroelements (EREs) embedded within abnormally long 3' extensions of host cell mRNAs. These aberrant host cell transcripts arose as a consequence of Disruption of Transcription Termination (DoTT), a virus-driven phenomenon which disables Cleavage and Polyadenylation Specificity Factor (CPSF)-mediated 3' processing of nascent pre-mRNAs10-15. Mutant viruses lacking ICP27 or NS1, the virus-encoded proteins responsible for inhibiting CPSF and triggering DoTT13,15, failed to induce host cell Z-RNA accrual and were attenuated in their ability to stimulate ZBP1. Ectopic expression of HSV-1 ICP27 or IAV NS1, or pharmacological blockade of CPSF activity, induced accumulation of host cell Z-RNAs and activated ZBP1. These results demonstrate that DoTT-generated cellular Z-RNAs are bona fide ZBP1 ligands, and position ZBP1-activated cell death as a host response to counter viral disruption of the cellular transcriptional machinery.© 2025. The Author(s), under exclusive licence to Springer Nature Limited.

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第一作者机构: [1]Center for Immunology, Fox Chase Cancer Center, Philadelphia, PA, USA
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通讯机构: [2]Laboratory of Bioinformatics, Faculty of Computer Science, National Research University Higher School of Economics, 11 Pokrovsky Bulvar, Moscow, Russia 101000 [6]Institute for Virology and Immunobiology, Julius-Maximilians-Universität-Würzburg, Würzburg, Germany [7]Institute of Virology, Hannover Medical School, Carl Neuberg Strasse 1, 30625 Hannover, Germany [8]Laboratory of Hepatic AI Translation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, People’s Republic of China [16]Helmholtz Institute for RNA-based Infection Research (HIRI), Würzburg, Germany. [17]Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany [18]Department of General Surgery, West China Hospital, Sichuan University, Chengdu, People’s Republic of China. [19]Liver Transplant Center, Transplant Center, West China Hospital, Sichuan University, Chengdu, People’s Republic of China. [20]InsideOutBio, 42 8th Street, Charlestown, MA, U.S.A
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