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题目:: Retinoic acid promotes the proliferation of primordial germ cell-like cells differentiated from mouse skin-derived stem cells in vitro.
作者:: Tan(Hui),Wang(Jun-Jie),Cheng(Shun-Feng),Ge(Wei),Sun(Yuan-Chao),Sun(Xiao-Feng),Sun(Rui),Li(Lan),Li(Bo),Shen(Wei)
状态:: 发布时间2016-01-06 , 更新时间 2016-11-10
期刊:: Theriogenology
摘要:: Skin-derived stem cells (SDSCs) have the potential to differentiate into gametes and are a potential resource for research and clinical applications. Sufficient amount of primordial germ cells (PGCs) is an important requirement for successful differentiation of SDSCs into gametes in vitro. Retinoic acid (RA), a vitamin A-derived small lipophilic molecule, promotes the growth of PGCs in vivo; however, the role of RA on the proliferation of PGC-like cells (PGCLCs) derived from SDSCs remains unknown. In this study, SDSCs were induced to differentiate into the embryoid body and cocultured with mouse fibroblasts to form PGCLCs. The proliferation of PGCLCs with the presence of various concentrations of RA was investigated in vitro. Immunofluorescence labeling showed that the 5-Bromo-2-deoxyUridine-positive ratio of PGCLCs was increased after the cells were treated with 5-μM RA, and flow cytometry results showed that the number of cells in the S phase was increased significantly. The messenger RNA expression levels of cell cycle-related genes, CCND1 and CDK2, were also increased. Furthermore, RA effectively promoted the external proliferation of endogenous PGCs when 11.5-days postcoitum fetal mouse genital ridges were cultured in vitro. In conclusion, 5-μM RA promoted the proliferation of SDSCs-derived PGCLCs and endogenous PGCs. Our study will provide a valuable model system for studying the differentiation of stem cells into gametes in vitro.
语言:: eng
DOI:: 10.1016/j.theriogenology.2015.09.002

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