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miR-203 Acts as a Tumor Suppressor Gene in Osteosarcoma by Regulating RAB22A

microRNAs (miRNAs), small noncoding RNAs of 19-25 nt, play an important roles in the pathological processes of tumorigenesis. The object of this study was to study the expression and function of miR-203 and to found its target gene in osteosarcoma. In our study, we found the expression level of miR-...

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Bibliographic Details
Published in:PloS one 2015-09, Vol.10 (9), p.e0132225
Main Authors: Yang, Dawei, Liu, Guangpeng, Wang, Kunzheng
Format: Article
Language:English
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Summary:microRNAs (miRNAs), small noncoding RNAs of 19-25 nt, play an important roles in the pathological processes of tumorigenesis. The object of this study was to study the expression and function of miR-203 and to found its target gene in osteosarcoma. In our study, we found the expression level of miR-203 was significantly downregulated in osteosarcoma cell lines and tissues. In addition, overexpression of miR-203 inhibited the osteosarcoma cell proliferation and migration and inhibited Mesenchymal-to-Epithelial reversion Transition (MErT). Moreover, we identified RAB22A as a direct target of miR-203 and RAB22A overexpression blocks the roles of miR-203 in osteosarcoma cell. Furthermore, we demonstrated that RAB22A expression was upregulated in human osteosarcoma cell lines and tissues. Take together, our results demonstrated that miR-203 act as a tumor suppressor miRNA through regulating RAB22A expression and suggested its involvement in osteosarcoma progression and carcinogenesis.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0132225