期刊
EXPERIMENTAL CELL RESEARCH
卷 351, 期 1, 页码 74-81出版社
ELSEVIER INC
DOI: 10.1016/j.yexcr.2016.12.023
关键词
miR-486; Hypoxia; TF-1 cells; Exosomes; Erythroid differentiation
资金
- National Program on Key Basic Research Project of China [2012CB518205]
- National Natural Science Foundation of China [81573086, 81170460, 81470320]
MicroRNAs (miRNAs) regulate the hypoxia-induced erythroid differentiation of hematopoietic cells. In this study, we identified that miR-486 was a rapid response miRNA to hypoxia in erythroleukemia TF-1 cells. Hypoxia exposure increased both intracellular and miR-486 levels of TF-1 cells. Ectopic miR-486 expression enhanced the growth and erythroid differentiation of TF-1 cells, whereas miR-486 inhibition suppressed their growth and erythroid differentiation. Treatment of TF-1 and cord blood CD34+ cells with exogenous containing miR-486 resulted in an increase of intracellular miR-486 level and enhanced erythroid differentiation. Furthermore, we identified that Sirt1 is a miR-486 target gene which modulates hypoxia-induced erythroid differentiation of TF-1 cells. Thus we identified a novel miRNA regulatory network that contributes to hypoxia-induced erythroid differentiation of hematopoietic cells.
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