Taskiran D.Evren V.2019-10-272019-10-2720110231-5882https://doi.org/10.4149/gpb_2011_02_167https://hdl.handle.net/11454/26874Adipose tissue-derived stem cells (ADSCs) are considered as a potential cell source for regenerative medicine and tissue engineering. Although ADSCs have greater proliferation capacity than bone marrow stem cells (BMSCs), lower differentiation ability of these cells limits their utility in experimental and clinical studies. The purpose of this study was to investigate whether 17ß-estradiol (E2) has a stimulatory effect on osteogenic differentiation potential of ADSCs in vitro. ADSCs were isolated from visceral adipose tissues of rats and treated with different concentrations of E 2 in osteogenic medium (OM) for 21 days. The differences in osteogenic differentiation potential of the cultures were assessed by von Kossa staining, measurement of alkaline phosphatase (ALP) activity and calcium levels. ADSCs cultured in OM supplemented with E2 showed greater bone-like nodule formation and mineral deposition in comparing with the cells grown in OM. In addition, ALP activity and calcium levels also were significantly higher in the cultures exposed to E2 than the cells treated only with OM (p < 0.005, n = 5). Our results suggest that E2 may stimulate the osteogenic differentiation of ADSCs and therefore, can be used as an inducing agent to improve the efficiency of these cells in in vitro and in vivo studies.en10.4149/gpb_2011_02_167info:eu-repo/semantics/openAccessAdipose tissueDifferentiationEstradiolOsteogenesisRatStem cellArticle30216717421613672Q3