PMID- 26057841 OWN - NLM STAT- MEDLINE DCOM- 20160328 LR - 20190423 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 5 DP - 2015 Jun 9 TI - Antioxidant treatment enhances human mesenchymal stem cell anti-stress ability and therapeutic efficacy in an acute liver failure model. PG - 11100 LID - 10.1038/srep11100 [doi] LID - 11100 AB - One of the major problems influencing the therapeutic efficacy of stem cell therapy is the poor cell survival following transplantation. This is partly attributed to insufficient resistance of transplanted stem cells to oxidative and inflammatory stresses at the injured sites. In the current study, we demonstrated the pivotal role of antioxidant levels in human umbilical cord mesenchymal stem cells (hUCMSCs) dynamic in vitro anti-stress abilities against lipopolysaccharide (LPS)/H2O2 intoxication and in vivo therapeutic efficacy in a murine acute liver failure model induced by D-galactosamine/LPS (Gal/LPS) by either reducing the antioxidant levels with diethyl maleate (DEM) or increasing antioxidant levels with edaravone. Both the anti- and pro-oxidant treatments dramatically influenced the survival, apoptosis, and reactive oxygen species (ROS) production of hUCMSCs through the MAPK-PKC-Nrf2 pathway in vitro. When compared with untreated and DEM-treated cells, edaravone-treated hUCMSCs rescued NOD/SCID mice from Gal/LPS-induced death, significantly improved hepatic functions and promoted host liver regeneration. These effects were probably from increased stem cell homing, promoted proliferation, decreased apoptosis and enhanced secretion of hepatocyte growth factor (HGF) under hepatic stress environment. In conclusion, elevating levels of antioxidants in hUCMSCs with edaravone can significantly influence their hepatic tissue repair capacity. FAU - Zeng, Wen AU - Zeng W AD - State key Discipline of Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, China. AD - Laboratory for Gene and Cell Therapy, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China. FAU - Xiao, Jia AU - Xiao J AD - State key Discipline of Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, China. AD - Department of Immunobiology, Institute of Tissue Transplantation and Immunology, Jinan University, Guangzhou, China. AD - Department of Anatomy, The University of Hong Kong, Hong Kong, China. FAU - Zheng, Gang AU - Zheng G AD - Laboratory for Gene and Cell Therapy, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China. FAU - Xing, Feiyue AU - Xing F AD - Department of Immunobiology, Institute of Tissue Transplantation and Immunology, Jinan University, Guangzhou, China. FAU - Tipoe, George L AU - Tipoe GL AD - Department of Anatomy, The University of Hong Kong, Hong Kong, China. FAU - Wang, Xiaogang AU - Wang X AD - Department of Immunobiology, Institute of Tissue Transplantation and Immunology, Jinan University, Guangzhou, China. FAU - He, Chengyi AU - He C AD - Laboratory for Gene and Cell Therapy, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China. FAU - Chen, Zhi-Ying AU - Chen ZY AD - Laboratory for Gene and Cell Therapy, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China. FAU - Liu, Yingxia AU - Liu Y AD - State key Discipline of Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150609 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Antioxidants) SB - IM MH - Antioxidants/pharmacology/*therapeutic use MH - Humans MH - Liver Failure, Acute/*drug therapy MH - Mesenchymal Stem Cells/cytology/*drug effects MH - Models, Biological MH - *Stress, Physiological PMC - PMC4460871 COIS- The authors declare no competing financial interests. EDAT- 2015/06/10 06:00 MHDA- 2016/03/29 06:00 PMCR- 2015/06/09 CRDT- 2015/06/10 06:00 PHST- 2015/01/11 00:00 [received] PHST- 2015/05/12 00:00 [accepted] PHST- 2015/06/10 06:00 [entrez] PHST- 2015/06/10 06:00 [pubmed] PHST- 2016/03/29 06:00 [medline] PHST- 2015/06/09 00:00 [pmc-release] AID - srep11100 [pii] AID - 10.1038/srep11100 [doi] PST - epublish SO - Sci Rep. 2015 Jun 9;5:11100. doi: 10.1038/srep11100.