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MicroRNA-30c inhibits metastasis of ovarian cancer by targeting metastasis-associated gene 1

Di Wang, Xia Wang, Li-Wei Qiu, Chen Peng, Shu-Ping Zhong, Lin Ye
Published: 1 January 2017
 by  Medknow

Abstract: Background: It is important to find reliable molecular markers or biological targets that associate with ovarian cancer (OC) metastasis for diagnosis and treatment. In this study, researchers investigated the regulated chain of microRNA-30c (miR-30c) and metastasis-associated gene 1 (MTA1) in OC tissues and cells. Materials and Methods: Expression of miR-30c and MTA1 was detected with quantitative real-time polymerase chain reaction and immunohistochemistry in 33 OC and matched adjacent tissues. MiR-30c mimics were synthetized and transfected into SKOV3 cells to target MTA1. The wound healing and transwell assays were detected to observe migration and invasion of transfected OC cells. Results: Compared with matching normal ovarian tissues, the MTA1 expression was upregulated and localized in the cytoplasm, and the expression of miR-30c was significantly reduced. The expression intensity of MTA1 was correlated with the Federation of Gynecology and Obstetrics stage, tumor grade, and metastasis of OC. Transfecting miR-30c mimics could significantly reduce the expression of MTA1 in SKOV3 cells and obviously inhibit the migration and invasion of SKOV3 cells. Conclusion: MiR-30c and MTA1 abnormally expressed in OC, which may be related to metastasis of OC. In MiR-30c as a tumor suppressor gene, its expression in OC could lead to reduced expression of MTA1, which may be one of the mechanisms of metastasis of OC cells.
Keywords: Metastasis / metastasis-associated gene 1 / microRNA-30c / ovarian cancer

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