{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T18:00:19Z","timestamp":1790791219326,"version":"4.1.0"},"update-to":[{"DOI":"10.1371\/journal.ppat.1014099","type":"new_version","label":"New version","source":"publisher","updated":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:00:00Z","timestamp":1790726400000}}],"reference-count":68,"publisher":"Public Library of Science (PLoS)","issue":"9","license":[{"start":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T00:00:00Z","timestamp":1790121600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100011125","name":"School of Medicine and Dentistry, University of Rochester","doi-asserted-by":"publisher","award":["OP211968"],"award-info":[{"award-number":["OP211968"]}],"id":[{"id":"10.13039\/100011125","id-type":"DOI","asserted-by":"publisher"}]},{"name":"NIH in Pulmonary Research training grant","award":["5T32HL171029-02"],"award-info":[{"award-number":["5T32HL171029-02"]}]},{"DOI":"10.13039\/100000050","name":"National Heart, Lung, and Blood Institute","doi-asserted-by":"publisher","award":["U01HL148861"],"award-info":[{"award-number":["U01HL148861"]}],"id":[{"id":"10.13039\/100000050","id-type":"DOI","asserted-by":"publisher"}]},{"name":"NIH","award":["R01 AI140442"],"award-info":[{"award-number":["R01 AI140442"]}]},{"name":"NIH","award":["U54HL165443"],"award-info":[{"award-number":["U54HL165443"]}]},{"DOI":"10.13039\/100011125","name":"School of Medicine and Dentistry, University of Rochester","doi-asserted-by":"publisher","award":["OP211970"],"award-info":[{"award-number":["OP211970"]}],"id":[{"id":"10.13039\/100011125","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100006525","name":"University of Southern Mississippi","doi-asserted-by":"publisher","award":["OP212145"],"award-info":[{"award-number":["OP212145"]}],"id":[{"id":"10.13039\/100006525","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.plospathogens.org"],"crossmark-restriction":false},"short-container-title":["PLoS Pathog"],"abstract":"<jats:p>\n                    Defective viral genomes (DVGs) are generated during the genomic replication of many RNA viruses. When produced early in infection or supplemented at the onset of infection, DVGs can attenuate viral pathogenesis by stimulating interferon responses and antagonizing wild type (WT) virus replication, highlighting their potential as antiviral therapeutics. However, during natural infection DVGs can exert both antiviral and proviral effects depending on their generation kinetics, species, and abundance, underscoring the need to better understand their roles in viral pathogenesis. Coronaviruses (CoVs) are RNA viruses that ubiquitously generate DVGs, yet the roles of DVGs during CoV infection are largely unknown. In a previous study we investigated SARS-CoV-2 DVG presence\n                    <jats:italic>in vitro<\/jats:italic>\n                    and in patient samples and discovered two major genomic hotspots (A and B) for their generation. Here, we first showed that overall DVG abundance tended to positively correlate with COVID-19 severity, with approximately 40% of DVGs originating from a specific genomic region designated hotspot B. Analysis of a publicly available single-cell RNA-seq dataset revealed that DVGs from hotspot B, but not hotspot A, were associated with elevated interferon responses, suggesting that DVGs derived from different genomic regions vary in their ability to stimulate innate immunity. To test this directly, we constructed two representative DVGs corresponding to hotspots A and B. Both DVGs suppressed the replication of co-infecting WT virus; however, only DVG-B induced robust interferon responses, exceeding those triggered by WT virus alone. This was further confirmed in human precision-cut lung slices. Mechanistically, DVG-B\u2013derived dsRNA exhibited a distinct subcellular distribution compared to WT virus. Complementation with the nucleocapsid (N) partially restored dsRNA organization but did not alter the interferon response. Together, our findings demonstrate that DVGs arising from distinct genomic hotspots differentially regulate interferon responses, and N plays a unique role in regulating dsRNA distribution and interferon responses.\n                  <\/jats:p>","DOI":"10.1371\/journal.ppat.1014099","type":"journal-article","created":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T17:45:56Z","timestamp":1790185556000},"page":"e1014099","update-policy":"https:\/\/doi.org\/10.1371\/journal.ppat.corrections_policy","source":"Crossref","is-referenced-by-count":0,"title":["SARS-CoV-2 defective viral genomes from distinct genomic regions drive divergent interferon responses"],"prefix":"10.1371","volume":"22","author":[{"given":"Justin W.","family":"Brennan","sequence":"first","affiliation":[{"name":"University of Rochester Medical Center","place":["Rochester, New York, United States of America"],"department":["Department of Microbiology and Immunology"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simone","family":"Spandau","sequence":"additional","affiliation":[{"name":"University of Rochester Medical Center","place":["Rochester, New York, United States of America"],"department":["Department of Microbiology and Immunology"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiayu","family":"Xu","sequence":"additional","affiliation":[{"name":"Perelman School of Medicine, University of Pennsylvania","place":["Philadelphia, Pennsylvania, United States of America"],"department":["Department of Microbiology"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xingjian","family":"Wang","sequence":"additional","affiliation":[{"name":"University of Rochester Medical Center","place":["Rochester, New York, United States of America"],"department":["Department of Microbiology and Immunology"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haley","family":"Aull","sequence":"additional","affiliation":[{"name":"University of Rochester Medical Center","place":["Rochester, New York, United States of America"],"department":["Department of Microbiology and Immunology"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gaochan","family":"Wang","sequence":"additional","affiliation":[{"name":"University of Rochester Medical Center","place":["Rochester, New York, United States of America"],"department":["Division of Allergy, Immunology, and Rheumatology (AIR), Department of Medicine"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarah","family":"Connor","sequence":"additional","affiliation":[{"name":"University of Rochester Medical Center","place":["Rochester, New York, United States of America"],"department":["Department of Pediatrics and Center for Children\u2019s Health Research"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gloria S.","family":"Pryhuber","sequence":"additional","affiliation":[{"name":"University of Rochester Medical Center","place":["Rochester, New York, United States of America"],"department":["Departments of Pediatrics and Environmental Medicine"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas J.","family":"Mariani","sequence":"additional","affiliation":[{"name":"University of Rochester Medical Center","place":["Rochester, New York, United States of America"],"department":["Department of Pediatrics and Center for Children\u2019s Health Research"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruth","family":"Serra-Moreno","sequence":"additional","affiliation":[{"name":"University of Rochester Medical Center","place":["Rochester, New York, United States of America"],"department":["Department of Microbiology and Immunology"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susan R.","family":"Weiss","sequence":"additional","affiliation":[{"name":"Perelman School of Medicine, University of Pennsylvania","place":["Philadelphia, Pennsylvania, United States of America"],"department":["Department of Microbiology"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5320-5793","authenticated-orcid":true,"given":"Yan","family":"Sun","sequence":"additional","affiliation":[{"name":"University of Rochester Medical Center","place":["Rochester, New York, United States of America"],"department":["Department of Microbiology and Immunology"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2026,9,23]]},"reference":[{"key":"ppat.1014099.ref001","article-title":"Studies on interferenee in experimental influenza. 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