Mehri Fayazi - Department of Medical Sciences, Najafabad Branch, Islamic Azad University, Najafabad, Iran.
Mojdeh Salehnia - Department of Anatomy, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Saeideh Ziaei - Department of Midwifery, Faculty of Medical Sciences Tarbiat Modares University, Tehran, Iran.

Background: Stem cell factor (SCF) is a transcriptional factor which plays crucial roles in normal proliferation, differentiation and survival in a range of stem cells.Objective: The aim of the present study was to examine the proliferation effect of different concentrations of SCF on expansion of human endometrial CD146+ cells.Materials and Methods: In this experimental study, total populations of isolated human endometrial suspensions after fourth passage were isolated by magnetic activated cell sorting (MACS) into CD146+ cells. Human endometrial CD146+ cells were karyotyped and tested for the effect of SCF on proliferation of CD146+ cells, then different concentrations of 0, 12.5, 25, 50 and 100 ng/ml was carried out and mitogens-stimulated endometrial CD146+ cells proliferation was assessed by MTT assay. Results: Chromosomal analysis showed a normal metaphase spread and 46XX karyotype. The proliferation rate of endometrial CD146P + P cells in the presence of 0, 12.5, 25, 50 and 100 ng/ml SCF were 0.945±0.094, 0.962±0.151, 0.988±0.028, 1.679±0.012 and 1.129±0.145 respectively. There was a significant increase in stem/ stromal cell proliferation following in vitro treatment by 50 ng/ml than other concentrations of SCF (p=0.01). Conclusion: The present study suggests that SCF could have effect on the proliferation and cell survival of human endometrial CD146P+P cells and it has important implications for medical sciences and cell therapies.

Endometrium, Stem cell factor, Stromal cells