期刊
MOLECULAR AND CELLULAR PROBES
卷 44, 期 -, 页码 37-43出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.mcp.2019.02.001
关键词
Leukemia cells; miR-486-5p; FOXO1; Proliferation; Apoptosis
类别
资金
- Funded Project of Shaanxi Provincial Department of Education [12JK0702]
Aim Studies have reported that micro (miR)-486-5p plays a crucial part in the progression of leukemia, however, to the best of our knowledge, few studies have been conducted on its mechanism in leukemia. In this study, the mechanism of miR-486-5p in leukemia cells was pointed out and its possible target genes were analyzed for the purpose of providing new therapeutic strategies for treating leukemia patients. Methods: MiRNA expression of Leukemia cells (K562, Kasumi-1, and THP-1) and primary leukocytes was detected by Real-time Quantitative polymerase chain reaction(qPCR). The activity of the cells was assessed using the Cell Counting Kit-8 (CCK-8). Apoptotic cells were analyzed by a flow cytometer (FCM). Caspase-3 activation in leukemia cells was determined by Western blot. Targetscan 7.2 was used to predict the potential targets of miR-486-5p and further confirmed by dual-luciferase reporter assay. Result miR-486-5p was significantly down-regulated in leukemia cells. The over-expression of miR-486-5p notably increased the apoptosis and caspase-3 activity in leukemia cells. There was a predicted interaction site for miR-486-5p in the FOXO1 3'-UTR. Furthermore, this study showed that FOXO1 was significantly up-regulated in leukemia cells, the growth of which was depressed by the up-regulation of miR-486-5p. Conclusion: miR-486-5p may inhibit the proliferation of leukemia cells and induce apoptosis through targeting FOXO1.
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