Journal
FEBS LETTERS
Volume 587, Issue 16, Pages 2523-2529Publisher
WILEY
DOI: 10.1016/j.febslet.2013.05.065
Keywords
Endometrial carcinoma cell; Targeting Aurora-B; MicroRNA; Let-7a
Funding
- Shanghai Natural Science Foundation [11ZR1426900]
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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 endomenial 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. (C) 2013 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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