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Long non-coding RNA LINC00243 promotes proliferation and glycolysis in non-small cell lung cancer cells by positively regulating PDK4 through sponging miR-507

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Abstract

Non-small cell lung cancer (NSCLC) is the main subtype of lung cancer. The overall survival of NSCLC patients is relatively low even after various treatments. Accumulating evidence demonstrated that long non-coding RNA (LncRNA) plays crucial roles in different biological process. However, the role of a novel LncRNA, LINC00243, in NSCLC remains unclear. We aimed to explore the biological role of LINC00243 in NSCLC. The mRNA and protein levels were determined by real-time PCR and western blot, respectively. Cell viability in vitro was detected by Cell Counting Kit-8 (CCK-8) assay and colony-formation assay. Reporter assay was used to detect the interactions between molecules, and the interaction was assessed by RNA pull-down assay. LINC00243 expression increased in human NSCLC tissues and associated with poor prognosis of NSCLC patients. LINC00243 knockdown inhibited proliferation and glycolysis of NSCLC cells. Mechanically, LINC00243 acted as a molecular sponge for miR-507, and miR-507 reversed the effect of LINC00243 on promoting proliferation and glycolysis of NSCLC cells. Moreover, LINC00243 modulated expression of endogenous miR-507-targeted PDK4. LINC00243 promotes proliferation and glycolysis in NSCLC cells by positively regulating PDK4 through sponging miR-507. LINC00243 could be the potential target for NSCLC treatment clinically.

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  1. Department of Cardio Thoracic Surgery, 900 Hospital of the Joint Logistics Team, No. 156 West No.2 Ring, North Road, Fuzhou, 350025, Fujian, China

    Xuegang Feng & Shengsheng Yang

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  1. Xuegang Feng
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  2. Shengsheng Yang
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Correspondence to Shengsheng Yang.

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This study was approved by the ethics committee of the 900 Hospital of the Joint Logistics Team.

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Feng, X., Yang, S. Long non-coding RNA LINC00243 promotes proliferation and glycolysis in non-small cell lung cancer cells by positively regulating PDK4 through sponging miR-507. Mol Cell Biochem 463, 127–136 (2020). https://doi.org/10.1007/s11010-019-03635-3

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