PMID: 26770409Jan 16, 2016Paper

Up-regulation of microRNA-664 inhibits cell growth and increases cisplatin sensitivity in cervical cancer

International Journal of Clinical and Experimental Medicine
Yao YangLong Chen

Abstract

Cervical cancer is one of the leading causes of cancer-related death in woman worldwide. In the present study, we investigated the role of microRNA 664 (miR-664) in regulating cancer migration and chemotherapy sensitivity in cervical cancer. Quantitative real-time PCR (qPCR) was used to assess the mRNA levels of miR-664 in both cervical cancer cell lines and cancer tissues from human patients. Lentiviral vector containing miR-664 mimics (lv-miR-664) was used to upregulate endogenous miR-664 in cervical cancer HeLa cells. The effects of miR-664 up-regulation on cervical cancer cell migration and cisplatin sensitivity were assessed by MTT and Cisplatin assays. Furthermore, the effect of miR-664 up-regulation on E-Cadherin expression was examined by western blot. E-Cadherin was then silenced by siRNA to examine its effect on miR-664 regulation on cervical cancer cell. MiR-664 was downregulated in both cervical cancer cell lines and cancer tissues in patients. In HeLa cells, lentivirus mediated miR-664 up-regulation reduced cancer cell migration and increased chemosensitivity to cisplatin. Western blot showed E-Cadherin was upregulated upon miR-664 overexpression in HeLa cells. Genetic silencing of E-Cadherin by siRNA reversed the ...Continue Reading

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