期刊
CELLULAR PHYSIOLOGY AND BIOCHEMISTRY
卷 48, 期 3, 页码 1075-1087出版社
Cell Physiol Biochem Press GmbH & Co
DOI: 10.1159/000491974
关键词
MIAT; MiR-29c; Lox12; ccRCC; CeRNA
资金
- National Natural Science Foundation of China [81272560, 81773282, 31741032, 81372760, 81672528]
- China Postdoctoral Science Foundation [2017M612467]
Background/Aims: MIAT is a long noncoding RNA (lncRNA) involved in cell proliferation and the development of tumor. However, the exact effects and molecular mechanisms of MIAT in clear cell renal cell carcinoma (ccRCC) progression are still unknown. Methods: We screened the lncRNAs' profile of ccRCC in The Cancer Genome Atlas database, and then examined the expression levels of lncRNA MIAT in 45 paired ccRCC tissue specimens and in cell lines by q-RT-PCR. MTS, colony formation, EdU, and Transwell assays were performed to examine the effect of MIAT on proliferation and metastasis of ccRCC. Western blot and luciferase assays were performed to determine whether MIAT can regulate Lox12 expression by competitively binding miR-29c in ccRCC. Results: MIAT was up-regulated in ccRCC tissues and cell lines. High MIAT expression correlated with worse clinicopathological features and shorter survival rate. Functional assays showed that knockdown of MIAT inhibited renal cancer cell proliferation and metastasis in vitro and in vivo. Luciferase and western blot assays further confirmed that miR-29c binds with MIAT. Additionally, the correlation of miR-29c with MIAT and Lox12 was further verified in patients' samples. Conclusion: Our data indicated that MIAT might be an oncogenic lncRNA that promoted proliferation and metastasis of ccRCC, and could be a potential therapeutic target in human ccRCC. (C) 2018 The Author(s) Published by S. Karger AG, Basel
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