Journal
ONCOLOGY REPORTS
Volume 32, Issue 5, Pages 2143-2149Publisher
SPANDIDOS PUBL LTD
DOI: 10.3892/or.2014.3459
Keywords
microRNA-101; osteosarcoma; enhancer of zeste homolog 2; metastasis; migration; invasion
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Funding
- National Natural Science Foundation of China [81072194]
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MicroRNAs (miRNAs) are a class of small non-coding RNA molecules, which play regulatory roles at the post-transcriptional level by suppressing the translation of protein-coding genes or inducing mRNA cleavage. Dysregulated expression of miRNAs is involved in multiple types of cancers and plays important roles in regulating various biological processes including metastasis. miR-101 is downregulated in various types of cancer and functions as a suppressor of cell migration and invasion. Meanwhile, enhancer of zeste homolog 2 (EZH2) is associated with the metastatic potential of several aggressive tumors. In the present study, we reported that ectopic overexpression of miR-101 downregulated the expression level of EZH2 and significantly inhibited migration and invasion of osteosarcoma cells. In addition, knockdown of EZH2 by siRNA showed the same effect of miR-101 on migration and invasion. To conclude, these results indicate that miR-101 may act as a tumor suppressor in osteosarcoma, as it has a suppressive role in cell migration and invasion by targeting EZH2.
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