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  • Title: Let7a inhibits the growth of endometrial carcinoma cells by targeting Aurora-B.
    Author: Liu P, Qi M, Ma C, Lao G, Liu Y, Liu Y, Liu Y.
    Journal: FEBS Lett; 2013 Aug 19; 587(16):2523-9. PubMed ID: 23769985.
    Abstract:
    MicroRNAs negatively regulate target gene expression at the post-transcriptional level during carcinogenesis. Recent advances revealed that the expression levels of several miRNAs are up- or down-regulated in endometrial carcinoma (EC). Here we identify dysregulated miRNAs in EC and we elucidate the essential role of let-7a. The expression of 86 miRNAs in EC was found to be different from adjacent normal endometrial tissues. Moreover, miR-let-7 members are down-regulated in EC and let-7 miRNAs are highly associated with endometrial cancer. A functional investigation revealed that let-7a suppressed proliferation of HeLa cells by targeting Aurora-B. Let-7a also antagonizes Aurora-B functions in promoting carcinoma cell proliferation by down-regulating Aurora-B protein level. Let-7a could be applied for gene therapy against endometrial carcinogenesis.
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