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To investigate the regulation of long non-coding RNA plasmacytoma variant translocation 1 (LncRNA PVT1) on proliferation, invasion, and aerobic glycolysis in glioma cells via miR-140-5p. Sixty patients with glioma treated in our hospital were recruited. The expression of PVT1 in tissues and cells was determined by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR), and the effects on the prognosis were observed. Glioma cell lines U87 and T98MG were either stably or transiently transfected with over-expression or inhibition vectors. Cell counting kit-8 (CCK-8), transwell, glucose, and lactate detection were employed to measure cell proliferation, invasion, and aerobic glycolysis after transfection. The correlation between PVT1 and miR-140-5p was determined by Dual-Luciferase reporter assay. RNA pull-down and RNA immunoprecipitation (RIP) test were adopted to indicate the correlation between PVT1 and miR-140-5p. PVT1 was highly expressed and had superior diagnostic value in gliomas, and the high expression of PVT1 resulted in poor prognosis of patients. Over-expressing PVT1 increased cell proliferation, invasion, and aerobic glycolysis, while inhibiting PVT1 yielded opposite outcome. Dual-Luciferase reporter assay confirmed that PVT1 could target miR-140-5p. Functional analysis showed that over-expression of miR-140-5p inhibited proliferation, invasion, and aerobic glycolysis in glioma cells. Rescue experiment found that the inhibitory effect of miR-140-5p could be eliminated by up-regulating PVT1 expression. PVT1 promotes proliferation, invasion, and aerobic glycolysis in glioma cells by regulating miR-140-5p.

Citation

Y Shao, H-T Chen, Q-R Ma, Y-W Zhang, Y-Q He, J Liu. Long non-coding RNA PVT1 regulates glioma proliferation, invasion, and aerobic glycolysis via miR-140-5p. European review for medical and pharmacological sciences. 2020 Jan;24(1):274-283

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PMID: 31957841

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