MicroRNA-100 inhibits osteosarcoma cell proliferation by targeting Cyr61 |
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Authors: | Jianhua Huang Kanda Gao Jian Lin Qiugen Wang |
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Institution: | 1. Department of Orthopaedics, Affiliated People’s First Hospital, Shanghai Jiaotong University, 200080, Shanghai, China
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Abstract: | Increasing evidence indicates that microRNAs (miRNAs) participate in almost every step of cellular processes and are often aberrantly expressed in human cancer. Therefore, the discovery of miRNAs may provide a new and powerful tool for understanding the mechanism and treatment of carcinogenesis. The aim of this study was to investigate the functional significance of miR-100 and to identify its possible target genes in osteosarcoma (OS) cells. Here, we found that expression level of miR-100 was significantly decreased in osteosarcoma tissues in comparison with the adjacent normal tissues. The enforced expression of miR-100 was able to inhibit cell proliferation in Saos-2 and MG63 cells, while its antisense oligonucleotides (antisense miR-100) promoted cell proliferation. Moreover, our results further revealed that expression of Cyr61, an extracellular matrix-associated growth factor, was negatively regulated by miR-100. Therefore, we consider that miR-100 acts as a tumor suppressor for osteosarcoma. It may provide novel diagnostic and therapeutic options for human osteosarcoma in the future. |
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