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题目:: miR-26b-3p Regulates Human Umbilical Cord-Derived Mesenchymal Stem Cell Proliferation by Targeting Estrogen Receptor.
作者:: Wang(Qiaoling),Xu(Chen),Zhao(Yunpeng),Xu(Zhenyu),Zhang(Yan),Jiang(Junfeng),Yan(Binghao),Gu(Daolan),Wu(Minjuan),Wang(Yue),Liu(Houqi)
状态:: 发布时间2016-02-26 , 更新时间 2016-11-15
期刊:: Stem Cells Dev
摘要:: Human umbilical cord-derived mesenchymal stem cells (hUC-MSC) have been considered as promising candidates for cell-based regeneration medicine. However, the application was limited to its poor in vitro proliferation ability against the huge demand of cells. MicroRNA plays important roles in the regulation of cell proliferation, apoptosis, and differentiation. The objective of this study is to explore the roles of miRNAs in regulating the in vitro proliferation of hUC-MSC and unveil their possible mechanism. In this study, we found that miR-26b-3p was significantly upregulated during serial in vitro passage of hUC-MSC and was correlated with cellular senescence and cell cycle genes. The overexpression of miR-26b-3p greatly inhibited the proliferation of hUC-MSC in vitro, which is indicated by 5-ethynyl-2'-deoxyuridine (EdU) incorporation assay, cell cycle, and cell growth curve analyses. miR-26b-3p suppression partly rescued this phenotype by maintaining its proliferation ability in vitro. For mechanism studies, we predicted and validated that miR-26b-3p suppresses estrogen receptor 1 (ESR1) expression by directly binding to the coding sequence (CDS) region of its message RNA (mRNA), thus subsequently changing the expression of its downstream effector Cyclin D1. In conclusion, we found that miR-26b-3p played an important role in the regulation of hUC-MSC proliferation in vitro by targeting the ESR-CCND1 pathway.
语言:: eng
DOI:: 10.1089/scd.2015.0267

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