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- 저자 : Leifeng Luo (검색결과 1 건)
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Heping Wang,Yanzhang Yu,Shuxin Fan,Leifeng Luo 연세대학교의과대학 2017 Yonsei medical journal Vol.58 No.6
Purpose: Long non-coding RNA (lncRNA) nuclear paraspeckle assembly transcript 1 (NEAT1) has been implicated as an oncogenein the development and progression of osteosarcoma. This study aims to explore the mechanism of NEAT1 in osteosarcoma. Materials and Methods: Expressions of NEAT1 and miR-194 in osteosarcoma tissues and cells were detected by quantitative real-time PCR. The effects of NEAT1 knockdown or miR-194 overexpression on cell proliferation, invasion, and apoptosis were determinedby 3-[4, 5-dimethylthiazol-2-yl]-2, 5 diphenyl tetrazolium bromide (MTT) assay, transwell invasive assay, and flow cytometry analysis, respectively. Luciferase reporter assay was performed to observe the possible interaction between NEAT1 and miR-194. Results: NEAT1 was upregulated and miR-194 was downregulated in osteosarcoma tissues and cells. Knockdown of NEAT1 or overexpression of miR-194 suppressed proliferation and invasion and induced apoptosis of osteosarcoma cells in vitro. Luciferase reporter assay validated that NEAT1 could interact with miR-194 and negatively modulated its expression. Furthermore, inhibitionof miR-194 reversed the suppression of proliferation and invasion and the promotion of apoptosis induced by NEAT1 depletionin osteosarcoma cells. Conclusion: Knockdown of NEAT1 suppressed proliferation and invasion and induced apoptosis in osteosarcoma cells by inhibitingmiR-194 expression.
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