Abstract
Mesenchymal stromal cells (MSCs) have been used in the treatment of Crohn's disease (CD) because of the immunomodulatory ability. The aim of this study was to investigate the therapeutic effect of adipose-derived MSCs (AD-MSCs) and to compare the therapeutic effect of AD-MSCs with that of bone marrow MSCs (BM-MSCs) in a murine model of CD. Murine colitis model of CD was created by trinitrobenzene sulfonic acid (TNBS). Twelve hours after treatment with TNBS, the mouse model was injected with MSCs intraperitoneally. Real-time polymerase chain reaction and immunohistochemistry staining were used to measure the expression levels of inflammatory cytokines in colonic tissues to investigate the therapeutic effect of AD-MSCs. The ten-day survival was recorded after infusion of MSCs. Intraperitoneal injection of MSCs alleviated the clinical and histopathologic severity of intestinal inflammation, and improved the survival of the TNBS-induced mouse model of CD. AD-MSCs could effectively increase the expression of interleukin-10 and reduce the secretion of pro-inflammatory cytokines including tumor necrosis factor-α, interleukin-12, and vascular endothelial growth factor. The mucosal injury was repaired by AD-MSCs. These effects were comparable between AD-MSCs and BM-MSCs. The therapeutic effect appears similar between AD-MSCs and BM-MSCs in treating CD. AD-MSCs may be a potential alternative of cell-based therapy for CD.
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