PMID- 19811790 OWN - NLM STAT- MEDLINE DCOM- 20100323 LR - 20220310 IS - 1095-8673 (Electronic) IS - 0022-4804 (Linking) VI - 159 IP - 1 DP - 2010 Mar TI - Hydrogen sulfide protects against ischemia-reperfusion injury in an in vitro model of cutaneous tissue transplantation. PG - 451-5 LID - 10.1016/j.jss.2009.05.010 [doi] AB - BACKGROUND: Ischemia-reperfusion injury (IRI) is a source of morbidity and mortality in many clinical scenarios, and has as one of its many consequences the induction of cellular apoptosis. Hydrogen sulfide (H2S) may decrease cellular metabolism in a reversible, nontoxic manner. An in vitro model of cutaneous tissue transplantation was developed to assess whether H2S could ameliorate cellular injury caused by IRI. METHODS: Human umbilical vein endothelial cells (HUVECs) were treated with media containing NaHS (0, 10 microM, 100 microM, or 1 mM) and exposed to normoxia (21% oxygen), hypoxia (1%), or anoxia (0%). Cells were then returned to normoxia, and apoptosis was quantified using a terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay. Fibroblasts (3T3s) were treated with H2S and exposed to anoxia in a similar fashion. RESULTS: Treatment with H2S resulted in a significant decrease in apoptosis in HUVECs and 3T3s subjected to IRI. Toxicity of H2S was not observed, although the protective effect was less evident at higher doses. CONCLUSION: This is the first study to examine H2S and the cellular components of cutaneous flaps in the setting of IRI. Our results demonstrate that H2S significantly decreases apoptosis in vitro in the setting of IRI. These data suggest H2S may mitigate IRI in vivo, and, therefore, has potential as a therapy for improving tissue survivability in clinical scenarios. CI - Copyright (c) 2010 Elsevier Inc. All rights reserved. FAU - Henderson, Peter W AU - Henderson PW AD - Weill Cornell Medical College, New York, New York 10065, USA. FAU - Singh, Sunil P AU - Singh SP FAU - Belkin, Daniel AU - Belkin D FAU - Nagineni, Vamsi AU - Nagineni V FAU - Weinstein, Andrew L AU - Weinstein AL FAU - Weissich, Jacob AU - Weissich J FAU - Spector, Jason A AU - Spector JA LA - eng PT - Journal Article DEP - 20090606 PL - United States TA - J Surg Res JT - The Journal of surgical research JID - 0376340 RN - YY9FVM7NSN (Hydrogen Sulfide) SB - IM MH - 3T3 Cells MH - Animals MH - *Cytoprotection MH - Endothelial Cells/drug effects MH - Fibroblasts/drug effects MH - Humans MH - Hydrogen Sulfide/pharmacology/*therapeutic use MH - Mice MH - Reperfusion Injury/*prevention & control MH - *Skin Transplantation MH - Surgical Flaps EDAT- 2009/10/09 06:00 MHDA- 2010/03/24 06:00 CRDT- 2009/10/09 06:00 PHST- 2009/01/09 00:00 [received] PHST- 2009/04/22 00:00 [revised] PHST- 2009/05/01 00:00 [accepted] PHST- 2009/10/09 06:00 [entrez] PHST- 2009/10/09 06:00 [pubmed] PHST- 2010/03/24 06:00 [medline] AID - S0022-4804(09)00265-0 [pii] AID - 10.1016/j.jss.2009.05.010 [doi] PST - ppublish SO - J Surg Res. 2010 Mar;159(1):451-5. doi: 10.1016/j.jss.2009.05.010. Epub 2009 Jun 6.