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Article

Cx43 reverses the resistance of A549 lung adenocarcinoma cells to cisplatin by inhibiting EMT

  • Authors:
    • Meiling Yu
    • Cuiling Zhang
    • Li Li
    • Shuying Dong
    • Naiju Zhang
    • Xuhui Tong
  • View Affiliations / Copyright

    Affiliations: Department of Pharmacy, The First Affiliated Hospital of Bengbu Medical College, Anhui, Bengbu 233004, P.R. China, Faculty of Pharmacy, Bengbu Medical College, Anhui, Bengbu 233004, P.R. China
  • Pages: 2751-2758
    |
    Published online on: April 29, 2014
       https://doi.org/10.3892/or.2014.3163
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Abstract

Cisplatin (CDDP) is one of the standard first-line chemotherapeutic agents for advanced non-small cell lung cancer (NSCLC). Unfortunately, prolonged exposure to CDDP results in acquired resistance which prevents the successful treatment of lung cancer patients. Thus, it is necessary to explore the mechanism underlying the resistance of NSCLC to CDDP. In the present study, a CDDP-resistant human lung cancer cell line A549/CDDP was established from the parental cell line A549. The results demonstrated that A549/CDDP cells acquired an epithelial-mesenchymal transition (EMT) phenotype, with morphological changes including acquisition of a spindle-like fibroblastic phenotype, downregulation of E-cadherin, upregulation of mesenchymal markers (vimentin, Snail and Slug), and increased capability of invasion and migration. Compared with A549 cells, the A549/CDDP cells showed decreased connexin43 (Cx43) expression. Overexpression of Cx43 reversed EMT and CDDP resistance in the A549/CDDP cells. Conversely, knockdown of Cx43 expression by siRNA-Cx43 initiated EMT and induced CDDP insensitivity in A549 cells. In summary, Cx43 reverses CDDP resistance in A549 CDDP-resistant cells by preventing EMT, making Cx43 a possible therapeutic target for lung cancer.
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Copy and paste a formatted citation
Spandidos Publications style
Yu M, Zhang C, Li L, Dong S, Zhang N and Tong X: Cx43 reverses the resistance of A549 lung adenocarcinoma cells to cisplatin by inhibiting EMT. Oncol Rep 31: 2751-2758, 2014.
APA
Yu, M., Zhang, C., Li, L., Dong, S., Zhang, N., & Tong, X. (2014). Cx43 reverses the resistance of A549 lung adenocarcinoma cells to cisplatin by inhibiting EMT. Oncology Reports, 31, 2751-2758. https://doi.org/10.3892/or.2014.3163
MLA
Yu, M., Zhang, C., Li, L., Dong, S., Zhang, N., Tong, X."Cx43 reverses the resistance of A549 lung adenocarcinoma cells to cisplatin by inhibiting EMT". Oncology Reports 31.6 (2014): 2751-2758.
Chicago
Yu, M., Zhang, C., Li, L., Dong, S., Zhang, N., Tong, X."Cx43 reverses the resistance of A549 lung adenocarcinoma cells to cisplatin by inhibiting EMT". Oncology Reports 31, no. 6 (2014): 2751-2758. https://doi.org/10.3892/or.2014.3163
Copy and paste a formatted citation
x
Spandidos Publications style
Yu M, Zhang C, Li L, Dong S, Zhang N and Tong X: Cx43 reverses the resistance of A549 lung adenocarcinoma cells to cisplatin by inhibiting EMT. Oncol Rep 31: 2751-2758, 2014.
APA
Yu, M., Zhang, C., Li, L., Dong, S., Zhang, N., & Tong, X. (2014). Cx43 reverses the resistance of A549 lung adenocarcinoma cells to cisplatin by inhibiting EMT. Oncology Reports, 31, 2751-2758. https://doi.org/10.3892/or.2014.3163
MLA
Yu, M., Zhang, C., Li, L., Dong, S., Zhang, N., Tong, X."Cx43 reverses the resistance of A549 lung adenocarcinoma cells to cisplatin by inhibiting EMT". Oncology Reports 31.6 (2014): 2751-2758.
Chicago
Yu, M., Zhang, C., Li, L., Dong, S., Zhang, N., Tong, X."Cx43 reverses the resistance of A549 lung adenocarcinoma cells to cisplatin by inhibiting EMT". Oncology Reports 31, no. 6 (2014): 2751-2758. https://doi.org/10.3892/or.2014.3163
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