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Comparison of Bone Marrow-vs. Adipose Tissue-derived Mesenchymal Stem Cells for Attenuating Liver Fibrosis

Overview
Journal Exp Ther Med
Specialty Pathology
Date 2017 Dec 30
PMID 29285145
Citations 26
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Abstract

Mesenchymal stem cell (MSC) therapy has emerged as a potential novel method of treating liver fibrosis. To date, bone marrow-derived MSCs (BM-MSCs) and adipose tissue-derived MSCs (AD-MSCs) have not been analyzed with respect to their ability to combat liver fibrosis. The present study aimed to compare the capabilities of BM-MSCs and AD-MSCs in the treatment of liver fibrosis. BM-MSCs and AD-MSCs were taken from male Sprague-Dawley rats and cultured. Hepatic stellate cells (HSCs) were co-cultured with either BM-MSCs or AD-MSCs, and the effects of BM-MSCs or AD-MSCs on the proliferation, activation and apoptosis of HSCs were determined. The secretion of a selected group of cytokines by BM-MSCs and AD-MSCs was measured using enzyme-linked immunosorbent assays. Using a CCl-induced liver fibrosis animal model, the anti-inflammatory and anti-fibrotic effects of BM-MSCs or AD-MSCs against liver fibrosis were evaluated. The morphological examination and analysis of specific surface markers confirmed the successful preparation of BM-MSCs and AD-MSCs. Furthermore, the proliferation, activation and apoptosis of HSCs were significantly inhibited by BM-MSCs and AD-MSCs, with statistically greater reductions achieved by AD-MSCs compared with BM-MSCs. Direct comparison of the secretion of selected cytokines by BM-MSCs and AD-MSCs revealed that significantly higher levels of nerve growth factor and transforming growth factor-β1 were secreted in the AD-MSC culture medium, whereas levels of vascular endothelial growth factor and interleukin-10 did not differ significantly between AD-MSCs and BM-MSCs. studies using a CCl-induced liver fibrosis model demonstrated that inflammatory activity and fibrosis staging scores were significantly lower in the MSC-treated groups compared with controls. Although AD-MSCs improved anti-inflammatory and anti-fibrotic effects compared with BM-MSCs, these differences were not significant. Thus, the current study demonstrated that BM-MSCs and AD-MSCs are similarly effective at attenuating liver fibrosis by inhibiting the activation and proliferation of HSCs, as well as promoting the apoptosis of HSCs.

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