{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,20]],"date-time":"2026-09-20T18:04:58Z","timestamp":1789927498488,"version":"4.0.1"},"reference-count":48,"publisher":"American Society for Microbiology","issue":"10","license":[{"start":{"date-parts":[[2015,5,15]],"date-time":"2015-05-15T00:00:00Z","timestamp":1431648000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Virol"],"published-print":{"date-parts":[[2015,5,15]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            Hydrogen sulfide (H\n            <jats:sub>2<\/jats:sub>\n            S) is an endogenous gaseous mediator that has gained increasing recognition as an important player in modulating acute and chronic inflammatory diseases. However, its role in virus-induced lung inflammation is currently unknown. Respiratory syncytial virus (RSV) is a major cause of upper and lower respiratory tract infections in children for which no vaccine or effective treatment is available. Using the slow-releasing H\n            <jats:sub>2<\/jats:sub>\n            S donor GYY4137 and propargylglycin (PAG), an inhibitor of cystathionine-\u03b3-lyase (CSE), a key enzyme that produces intracellular H\n            <jats:sub>2<\/jats:sub>\n            S, we found that RSV infection led to a reduced ability to generate and maintain intracellular H\n            <jats:sub>2<\/jats:sub>\n            S levels in airway epithelial cells (AECs). Inhibition of CSE with PAG resulted in increased viral replication and chemokine secretion. On the other hand, treatment of AECs with the H\n            <jats:sub>2<\/jats:sub>\n            S donor GYY4137 reduced proinflammatory mediator production and significantly reduced viral replication, even when administered several hours after viral absorption. GYY4137 also significantly reduced replication and inflammatory chemokine production induced by human metapneumovirus (hMPV) and Nipah virus (NiV), suggesting a broad inhibitory effect of H\n            <jats:sub>2<\/jats:sub>\n            S on paramyxovirus infections. GYY4137 treatment had no effect on RSV genome replication or viral mRNA and protein synthesis, but it inhibited syncytium formation and virus assembly\/release. GYY4137 inhibition of proinflammatory gene expression occurred by modulation of the activation of the key transcription factors nuclear factor \u03baB (NF-\u03baB) and interferon regulatory factor 3 (IRF-3) at a step subsequent to their nuclear translocation. H\n            <jats:sub>2<\/jats:sub>\n            S antiviral and immunoregulatory properties could represent a novel treatment strategy for paramyxovirus infections.\n          <\/jats:p>\n          <jats:p>\n            <jats:bold>IMPORTANCE<\/jats:bold>\n            RSV is a global health concern, causing significant morbidity and economic losses as well as mortality in developing countries. After decades of intensive research, no vaccine or effective treatment, with the exception of immunoprophylaxis, is available for this infection as well as for other important respiratory mucosal viruses. This study identifies hydrogen sulfide as a novel cellular mediator that can modulate viral replication and proinflammatory gene expression, both important determinants of lung injury in respiratory viral infections, with potential for rapid translation of such findings into novel therapeutic approaches for viral bronchiolitis and pneumonia.\n          <\/jats:p>","DOI":"10.1128\/jvi.00264-15","type":"journal-article","created":{"date-parts":[[2015,3,5]],"date-time":"2015-03-05T02:32:25Z","timestamp":1425522745000},"page":"5557-5568","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":78,"title":["Role of Hydrogen Sulfide in Paramyxovirus Infections"],"prefix":"10.1128","volume":"89","author":[{"given":"Hui","family":"Li","sequence":"first","affiliation":[{"name":"Department of Pediatrics, University of Texas Medical Branch at Galveston, Galveston, Texas, 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