Contribution of murine bone marrow mesenchymal stem cells to pancreas regeneration after partial pancreatectomy in mice

Cell Biology International
Fei HanKui Tian

Abstract

The implantation of BMSCs (bone marrow mesenchymal stem cells) has emerged as a potential method of treating tissue damage, but the in vivo differentiation of BMSCs in an injured pancreas and its therapeutic effects have not been determined. Our aim has been to investigate the potential of BMSCs to contribute to the parenchyma and mesenchymal components of the pancreas during rapid regeneration, with preliminary exploration of the molecular mechanisms of this process. GFP(+) (green fluorescent protein(+) ) BMSCs were intravenously infused into the tail veins of mice that had received a 65-70% partial pancreatectomy, while mice that had only received a partial pancreatectomy and mice that had only been injected with BMSCs served as controls. Four weeks later, the injected GFP(+) BMSCs were diffusely engrafted in the pancreatic parenchyma and mesenchyma of the recipient mice with pancreatic injuries and had differentiated into pancreatic ductal epithelial cells (accounting for 1.7±0.3%), vascular endothelial cells (3.2±0.6%) and PSCs (pancreatic stellate cells) (5.2±1.6%), but no β or neural cells. Significantly, more engrafted and differentiated GFP(+) BMSCs were observed in the regenerating pancreas than in the normal pancreas....Continue Reading

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