PMID- 35883901 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220731 IS - 2076-3921 (Print) IS - 2076-3921 (Electronic) IS - 2076-3921 (Linking) VI - 11 IP - 7 DP - 2022 Jul 21 TI - Hydrogen Sulfide Donor GYY4137 Rescues NRF2 Activation in Respiratory Syncytial Virus Infection. LID - 10.3390/antiox11071410 [doi] LID - 1410 AB - Respiratory syncytial virus (RSV) can cause severe respiratory illness in infants, immunocompromised, and older adults. Despite its burden, no vaccine or specific treatment is available. RSV infection is associated with increased reactive oxygen species (ROS) production, degradation of the transcription factor nuclear factor erythroid 2-related factor 2 (NRF2), and decreased antioxidant enzymes (AOEs), leading to oxidative damage and lung injury. Hydrogen sulfide (H(2)S) is an endogenous gaseous molecule that plays a physiological role in numerous cellular processes and a protective role in multiple pathological conditions, displaying vasoactive, cytoprotective, anti-inflammatory, and antioxidant activities. H(2)S can promote NRF2 activation through the sulfhydration of Kelch-like ECH-associated protein 1, the cytoplasmic repressor of NRF2. Here we investigated whether increasing cellular H(2)S levels could rescue NRF2 and NRF2-dependent gene expression in RSV-infected primary airway epithelial cells. We found that treatment with the H(2)S donor GYY4137 significantly increased NRF2 levels and AOEs gene expression by decreasing KEAP1 levels, and by modulating pathways involved in RSV-induced NRF2 degradation, such as NRF2 ubiquitination, and promyelocytic leukemia (PML) protein levels. These results suggest that the administration of exogenous H(2)S can positively impact the altered redox balance associated with RSV infection, which represents an important determinant of RSV-induced lung disease. FAU - Haas de Mello, Aline AU - Haas de Mello A AUID- ORCID: 0000-0002-5437-7191 AD - Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX 77555, USA. FAU - Liu, Tianshuang AU - Liu T AD - Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX 77555, USA. FAU - Garofalo, Roberto P AU - Garofalo RP AD - Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX 77555, USA. AD - Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX 77555, USA. FAU - Casola, Antonella AU - Casola A AD - Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX 77555, USA. AD - Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX 77555, USA. LA - eng GR - AI062885/NH/NIH HHS/United States GR - AI125434/NH/NIH HHS/United States PT - Journal Article DEP - 20220721 PL - Switzerland TA - Antioxidants (Basel) JT - Antioxidants (Basel, Switzerland) JID - 101668981 PMC - PMC9311616 OTO - NOTNLM OT - GYY4137 OT - H2S donor OT - NRF2 OT - antioxidant enzymes OT - hydrogen sulfide OT - respiratory syncytial virus COIS- The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results. EDAT- 2022/07/28 06:00 MHDA- 2022/07/28 06:01 PMCR- 2022/07/21 CRDT- 2022/07/27 01:07 PHST- 2022/07/05 00:00 [received] PHST- 2022/07/19 00:00 [revised] PHST- 2022/07/20 00:00 [accepted] PHST- 2022/07/27 01:07 [entrez] PHST- 2022/07/28 06:00 [pubmed] PHST- 2022/07/28 06:01 [medline] PHST- 2022/07/21 00:00 [pmc-release] AID - antiox11071410 [pii] AID - antioxidants-11-01410 [pii] AID - 10.3390/antiox11071410 [doi] PST - epublish SO - Antioxidants (Basel). 2022 Jul 21;11(7):1410. doi: 10.3390/antiox11071410.