%0 Journal Article %T Effects Of Different Doses Of Bone Morphogenetic Protein 4 On Viability And Proliferation Rates Of Mouse Embryonic Stem Cells %J Cell Journal (Yakhteh) %I Royan Institute, Iranian Academic Center for Education Culture and Research (ACECR) %Z 2228-5806 %A Makoolati, Zohreh %A Movahedin, Mansoureh %A Forouzandeh-Moghadam, Mehdi %D 2009 %\ 04/01/2009 %V 11 %N 1 %P 29-34 %! Effects Of Different Doses Of Bone Morphogenetic Protein 4 On Viability And Proliferation Rates Of Mouse Embryonic Stem Cells %K Embryonic stem cells %K BMP4 %K Proliferation %K Viability %R %X Objective: In this study, we examined the effect of different doses of bone morphogenetic protein 4 (BMP4) on CCE mouse embryonic stem cells (ESCs) viability and proliferation rates in order to improve the outcome of induction processes and make a system with highest viability and proliferation rates for further studies on BMP4 roles in multiple developmental stages. Materials and Methods: Expression of Oct-4 was studied and confirmed in this cell line immunocytochemically. Also, in order to evaluate the proliferation and viability rates in BMP4-treated cells, ESCs were cultured in Dulbecco's Modified Eagle Medium (DMEM) containing different doses of BMP4 (0, 0.01, 0.1, 1, 5, 25, 50 and 100ng/ml). The mean number of whole cells and living cells were considered as proliferation and survival rates respectively. Data analysis was done with ANOVA test. Results: The results showed that there were significant differences between the mean percent of viability between 1ng/ml and 0 ng/ml (control) and 50 and 100 ng/ml BMP4 (p≤0.01), as well as between 5 ng/ml and 0, 0.01, 0.1, 25, 50 and 100 ng/ml BMP4 (p≤ 0.02). Also, significant differences were observed in proliferation rates between 5 ng/ml and 0, 0.01, 0.1, 1, 25 and 100 ng/ml BMP4 (p≤0.01), 25 ng/ml and 0.01, 1 and 5 ng/ml BMP4 (p≤0.01), as well as between 50 ng/ml and 0.01 and 0.1 ng/ml BMP4 (p≤0.001). Conclusion: The results suggest that addition of 5ng/ml BMP4 had the best effects on the proliferation and viability rates of CCE mouse ESCs. %U https://www.celljournal.org/article_248140_7338637625d63b030d448aa4e99c1544.pdf