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circRNA_103615 contributes to tumor progression and cisplatin resistance in NSCLC by regulating ABCB1

  • Authors:
    • Hongguang Liang
    • Zelong Lin
    • Huiwen Lin
    • Li Zhao
    • Weihua Huang
  • View Affiliations / Copyright

    Affiliations: Department of Oncology, Jinshazhou Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510168, P.R. China, Department of Thoracic Surgery, Traditional Chinese Medicine‑Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, P.R. China
    Copyright: © Liang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 934
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    Published online on: July 1, 2021
       https://doi.org/10.3892/etm.2021.10366
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Abstract

Lung cancer is one of the main causes of tumor lethality worldwide. Circular RNAs (circRNAs) have essential roles in tumor progression. However, in non‑small cell lung carcinoma (NSCLC), the role of circRNAs remains unknown. In the present study, the expression, function and molecular mechanisms of a new circRNA, circRNA_103615, were investigated in NSCLC. Reverse transcription‑quantitative PCR (RT‑qPCR) was used to detect circRNA_103615 expression levels in NSCLC and normal tissues, as well as in NSCLC cell lines. MTT assay, flow cytometric assay, colony formation assay, and cell migration and invasion assays were used to examine the function of circRNA_103615 in NSCLC cells. MTT assay, colony formation assay, RT‑qPCR, and western blotting were used to detect the effect of circRNA_103615 on cisplatin resistance. The results demonstrated that NSCLC cell lines and tissues had increased levels of circRNA_103615 compared with normal cells and normal tissues, respectively. Functionally, silencing of circRNA_103615 by small interfering RNA resulted in suppression of cell growth, migration, and invasion, but promotion of cell apoptosis. In addition, the cisplatin resistance of NSCLC was reversed by the silencing of circRNA_103615. Notably, ATP binding cassette subfamily Bmember 1 (ABCB1) expression was significantly decreased following circRNA_103615 knockdown, and ABCB1 overexpression reversed the effects of circRNA_103615 silencing on NSCLC cisplatin resistance. Thus, the present study indicated that circRNA_103615 may serve as a critical oncogene and potential novel biomarker in NSCLC, as well as a potential cisplatin resistance promoter, by regulating ABCB1 expression.
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Copy and paste a formatted citation
Spandidos Publications style
Liang H, Lin Z, Lin H, Zhao L and Huang W: circRNA_103615 contributes to tumor progression and cisplatin resistance in NSCLC by regulating ABCB1. Exp Ther Med 22: 934, 2021.
APA
Liang, H., Lin, Z., Lin, H., Zhao, L., & Huang, W. (2021). circRNA_103615 contributes to tumor progression and cisplatin resistance in NSCLC by regulating ABCB1. Experimental and Therapeutic Medicine, 22, 934. https://doi.org/10.3892/etm.2021.10366
MLA
Liang, H., Lin, Z., Lin, H., Zhao, L., Huang, W."circRNA_103615 contributes to tumor progression and cisplatin resistance in NSCLC by regulating ABCB1". Experimental and Therapeutic Medicine 22.3 (2021): 934.
Chicago
Liang, H., Lin, Z., Lin, H., Zhao, L., Huang, W."circRNA_103615 contributes to tumor progression and cisplatin resistance in NSCLC by regulating ABCB1". Experimental and Therapeutic Medicine 22, no. 3 (2021): 934. https://doi.org/10.3892/etm.2021.10366
Copy and paste a formatted citation
x
Spandidos Publications style
Liang H, Lin Z, Lin H, Zhao L and Huang W: circRNA_103615 contributes to tumor progression and cisplatin resistance in NSCLC by regulating ABCB1. Exp Ther Med 22: 934, 2021.
APA
Liang, H., Lin, Z., Lin, H., Zhao, L., & Huang, W. (2021). circRNA_103615 contributes to tumor progression and cisplatin resistance in NSCLC by regulating ABCB1. Experimental and Therapeutic Medicine, 22, 934. https://doi.org/10.3892/etm.2021.10366
MLA
Liang, H., Lin, Z., Lin, H., Zhao, L., Huang, W."circRNA_103615 contributes to tumor progression and cisplatin resistance in NSCLC by regulating ABCB1". Experimental and Therapeutic Medicine 22.3 (2021): 934.
Chicago
Liang, H., Lin, Z., Lin, H., Zhao, L., Huang, W."circRNA_103615 contributes to tumor progression and cisplatin resistance in NSCLC by regulating ABCB1". Experimental and Therapeutic Medicine 22, no. 3 (2021): 934. https://doi.org/10.3892/etm.2021.10366
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