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LINC01082 Inhibits Non-Small Cell Lung Cancer by Targeting the miR-543/TNRC6A Axis

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Abstract

Non-small cell lung cancer (NSCLC) accounts for over 80% of lung cancer cases and have poor clinical outcomes. Increasing number of lncRNAs are reported to be implicated in the carcinogenesis of NSCLC. Previous lncRNA-seq results showed that LINC01082 was under-expressed in several cancer types. In the current study, we focused on the role of LINC01082 in NSCLC development. An online bioinformatics tool was utilized to assess the expression profile of LINC01082, miR-543, and TNRC6A in NSCLC samples. RT-qPCR analysis was performed for evaluating LINC01082, TNRC6A and miR-543 expression in cells (NSCLC cells vs. normal lung cells). Impact of LINC01082 upregulation on cell proliferation in vitro was investigated by MTT and EdU experiments. Transwell assay was applied to analyze the migration and invasion of NSCLC cells. The cell apoptosis after plasmid transfection was detected by flow cytometry. The interactions among LINC01082, miR-543 and TNRC6A were measured by RNA pulldown and luciferase reporter assays. We showed that LINC01082 levels were downregulated in NSCLC samples and NSCLC cells. Overexpression of LINC01082 inhibited NSCLC cell proliferation, migration and invasion and strengthened cell apoptosis. LINC01082 directly bound to miR-543, and miR-543 targeted TNRC6A. TNRC6A was downregulated and miR-543 was overexpressed in NSCLC cells. miR-543 inhibition suppressed malignant cellular behaviors. TNRC6A knockdown reversed the effects of LINC01082 on the malignant character of NSCLC cells. In conclusion, LINC01082 exerts an antioncogenic role in NSCLC via interaction with miR-543 to regulate TNRC6A expression.

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Acknowledgements

We thank all participators for their help.

Funding

The work was supported by 2021 Henan Province Medical Science and Technology Research Plan Joint Construction Project (Approval number: LHGJ20210879).

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Authors and Affiliations

  1. Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052, Henan, China

    Ran Yang & Song Zhao

  2. Department of Thoracic Surgery, Anyang Tumor Hospital, The Affiliated Anyang Tumor Hospital of Henan University of Science and Technology, No. 1 Huanbin North Road, Anyang, 455003, Henan, China

    Ran Yang

  3. Department of Clinical Laboratory, Anyang Tumor Hospital, The Affiliated Anyang Tumor Hospita of Henan University of Science and Technology, No. 1 Huanbin North Road, Anyang, 455003, Henan, China

    Jinli Han

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  1. Ran Yang
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Contributions

Ran Yang conceived and designed the experiments. Ran Yang, Jinli Han and Song Zhao carried out the experiments. Ran Yang and Song Zhao analyzed the data. Ran Yang and Song Zhao drafted the manuscript. All authors agreed to be accountable for all aspects of the work. All authors have read and approved the final manuscript.

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Correspondence to Song Zhao.

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Yang, R., Han, J. & Zhao, S. LINC01082 Inhibits Non-Small Cell Lung Cancer by Targeting the miR-543/TNRC6A Axis. Biochem Genet 61, 1585–1605 (2023). https://doi.org/10.1007/s10528-022-10313-5

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