Rat Pancreatic Stromal Cells (PSC) affect Differentiation of Human Mesenchymal Stem Cells (hMSC) into Insulin-Producing Cells (IPCs) In vitroKhoshchehreh R1,2, Ebrahimi M1,3*, EslamiNejad MB1, Aghdami N1,3, Samani F1,2 and Baharvand H1,2
- *Corresponding Author:
- Marzieh Ebrahimi, Ph.D
Department of Stem Cells and Developmental Biology
Cell Science Research Center
Royan Institute for Stem Cell Biology and Technology
Cell Science Research, ACECR
P.O. Box 19395-4644, Tehran, Iran
Tel: +98 2122306485
Fax: +98 2123562507
Received date: June 18, 2012; Accepted date: July 23 2012; Published date: July 25, 2012
Citation: Khoshchehreh R, Ebrahimi M, EslamiNejad MB, Aghdami N, Samani F, et al. (2012) Rat Pancreatic Stromal Cells (PSC) affect Differentiation of Human Mesenchymal Stem Cells (hMSC) into Insulin-Producing Cells (IPCs) In vitro. J Cell Sci Ther 3:130. doi: 10.4172/2157-7013.1000130
Copyright: © 2012 Khoshchehreh R, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The use of different sources of stem cells including embryonic and mesenchymal stem cells is a novel therapy for diabetic’s patients. However the efficiency of differentiation is not enough to complete treatment. An important point in the induction of stem cells into IPCs in vitro is the role of the pancreatic niche (which includes the stromal and epithelial niche). It can physically contact to adjacent cells and influence stem cell behavior via close range signaling. In this respect, we hypnotized that Pancreatic Stromal Cell (PSC) as a fundamental factor of the stromal niche may have an effective role in the generation IPCs (i.e, the efficiency of differentiation and function of newlyformed β-cells) in vitro. Therefore in this study, MSCs derived from umbilical cord (UC-MSCs) vain and bone marrow (BM-MSCs) was selected to differentiate into IPCs in co-culture with rat PSCs.
Our results have demonstrated that only BM-MSCs were able to differentiate into IPCs. Cells in Islet-like clusters with (out) co-cultured with rat pancreatic stromal cells, produced insulin and C-peptide and released them to culture medium at the end of the induction protocol; however they did not respond to glucose challenges very well. The presence of rat pancreatic stromal cells, up-regulated the expressions of insulin, Glut2, and Nkx2.2 were at the mRNA level in IPCs. These results suggested that rat PSCs possibly affect MSCs differentiation into IPCs by increasing the number of immature β-cells.