The expressio nof microRNA-216a in breast cance r and the effect on autophagy
10.11904/j.issn.1002-3070.2015.06.006
- VernacularTitle:microRNA－216a在乳腺癌中表达及对MCF－7细胞自噬的影响
- Author:
Haiyan GONG
;
Kun ZHANG
;
Ling LI
;
Tianjiao WANG
;
Jin WU
- Publication Type:Journal Article
- Keywords:
Breast cancer;
MicroRNA-216a;
Autophagy;
Beclin 1
- From:
Practical Oncology Journal
2015;(6):507-511
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the expression of microRNA -216a(miR -216a)in patients suf-fering with breast cancer ,and identify the function and mechanism of miR -216 a on autophagy .Methods The expression of miR-216 a in 30 tumor tissues and paired normal tissue of breast cancer were detected by qRT -PCR.Inhibiton of miR-216a in MCF-7 cell lines was done by transfection of miR -216a inhibitor ( AMO-216a).Cell viability was detected by MTT assay .The level of Beclin 1 was detected by western blot .Results The level of miR-216 a was significant elevated in tumor tissue .Cell viability was markedly decreased owing to inhibition of miR-216a in MCF-7 cells.The level of Beclin 1 was significantly increased by transfection of miR-216a inhibitor in MCF-7cells(P<0.05).Conclusion The level of miR-216a is increased in breast canc-er tissue, and it might at least in part promote breast cancer via downregulating Beclin 1 and affecting autophagy .
