Umbilical cord-derived mesenchymal stem cells alleviate liver fibrosis in rats.

Autor:	Chai NL; Ning-Li Chai, Xiao-Bin Zhang, En-Qiang Linghu, Department of Gastroenterology, PLA General Hospital, Beijing 100853, China., Zhang XB; Ning-Li Chai, Xiao-Bin Zhang, En-Qiang Linghu, Department of Gastroenterology, PLA General Hospital, Beijing 100853, China., Chen SW; Ning-Li Chai, Xiao-Bin Zhang, En-Qiang Linghu, Department of Gastroenterology, PLA General Hospital, Beijing 100853, China., Fan KX; Ning-Li Chai, Xiao-Bin Zhang, En-Qiang Linghu, Department of Gastroenterology, PLA General Hospital, Beijing 100853, China., Linghu EQ; Ning-Li Chai, Xiao-Bin Zhang, En-Qiang Linghu, Department of Gastroenterology, PLA General Hospital, Beijing 100853, China.
Jazyk:	angličtina
Zdroj:	World journal of gastroenterology [World J Gastroenterol] 2016 Jul 14; Vol. 22 (26), pp. 6036-48.
DOI:	10.3748/wjg.v22.i26.6036
Abstrakt:	Aim: To evaluate the efficacy of umbilical cord-derived mesenchymal stem cells (UC-MSCs) transplantation in the treatment of liver fibrosis. Methods: Cultured human UC-MSCs were isolated and transfused into rats with liver fibrosis induced by dimethylnitrosamine (DMN). The effects of UC-MSCs transfusion on liver fibrosis were then evaluated by histopathology; serum interleukin (IL)-4 and IL-10 levels were also measured. Furthermore, Kupffer cells (KCs) in fibrotic livers were isolated and cultured to analyze their phenotype. Moreover, UC-MSCs were co-cultured with KCs in vitro to assess the effects of UC-MSCs on KCs' phenotype, and IL-4 and IL-10 levels were measured in cell culture supernatants. Finally, UC-MSCs and KCs were cultured in the presence of IL-4 antibodies to block the effects of this cytokine, followed by phenotypical analysis of KCs. Results: UC-MSCs transfused into rats were recruited by the injured liver and alleviated liver fibrosis, increasing serum IL-4 and IL-10 levels. Interestingly, UC-MSCs promoted mobilization of KCs not only in fibrotic livers, but also in vitro. Co-culture of UC-MSCs with KCs resulted in increased production of IL-4 and IL-10. The addition of IL-4 antibodies into the co-culture system resulted in decreased KC mobilization. Conclusion: UC-MSCs could increase IL-4 and promote mobilization of KCs both in vitro and in vivo, subsequently alleviating the liver fibrosis induced by DMN.
Databáze:	MEDLINE
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