Capsaicin enhances anti-proliferation efficacy of pirarubicin via activating TRPV1 and inhibiting PCNA nuclear translocation in 5637 cells

  • Authors:
    • Long Zheng
    • Jiaqi Chen
    • Zhenkun Ma
    • Wei Liu
    • Fei Yang
    • Zhao Yang
    • Ke Wang
    • Xinyang Wang
    • Dalin He
    • Lei Li
    • Jin Zeng
  • View Affiliations

  • Published online on: November 30, 2015     https://doi.org/10.3892/mmr.2015.4623
  • Pages: 881-887
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Abstract

The recurrence of bladder cancer after surgery with or without chemotherapy remains a major challenge in bladder cancer treatment. Previous studies have shown that transient receptor potential vanilloid 1 (TRPV1) acts as a tumor suppressor through inducing apoptosis in bladder cancer cells. However, whether activation of TRPV1 has any synergistic effects with pirarubicin (THP), one of main drugs used in urinary bladder instillation chemotherapy to improve chemotherapeutic efficacy has remained elusive. The present study verified that TRPV1 was differentially expressed in bladder cancer cell lines. Furthermore, activation of TRPV1 by capsaicin was shown to induce growth inhibition of 5637 cells in which TRPV1 was highly expressed, while the growth of T24 cells, which express TRPV1 at low levels, was not affected. In addition, the present study demonstrated that activation of TRPV1 enhanced the anti‑proliferative effects of pirarubicin using an MTT assay and cell cycle analysis. Finally, immunofluorescent microscopy revealed that activation of TRPV1 prevented the translocation of proliferating cell nuclear antigen to the nucleus. This phenomenon was reversed by pre‑treatment with capsazepine, a specific TRPV1 antagonist. In conclusion, the present study confirmed the anti‑tumor activity of TRPV1 against bladder cancer. Activation of TRPV1 may be applied as a novel strategy to treat bladder cancer or enhance the therapeutic efficacy of traditional chemotherapeutic drugs.
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January-2016
Volume 13 Issue 1

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Zheng L, Chen J, Ma Z, Liu W, Yang F, Yang Z, Wang K, Wang X, He D, Li L, Li L, et al: Capsaicin enhances anti-proliferation efficacy of pirarubicin via activating TRPV1 and inhibiting PCNA nuclear translocation in 5637 cells. Mol Med Rep 13: 881-887, 2016
APA
Zheng, L., Chen, J., Ma, Z., Liu, W., Yang, F., Yang, Z. ... Zeng, J. (2016). Capsaicin enhances anti-proliferation efficacy of pirarubicin via activating TRPV1 and inhibiting PCNA nuclear translocation in 5637 cells. Molecular Medicine Reports, 13, 881-887. https://doi.org/10.3892/mmr.2015.4623
MLA
Zheng, L., Chen, J., Ma, Z., Liu, W., Yang, F., Yang, Z., Wang, K., Wang, X., He, D., Li, L., Zeng, J."Capsaicin enhances anti-proliferation efficacy of pirarubicin via activating TRPV1 and inhibiting PCNA nuclear translocation in 5637 cells". Molecular Medicine Reports 13.1 (2016): 881-887.
Chicago
Zheng, L., Chen, J., Ma, Z., Liu, W., Yang, F., Yang, Z., Wang, K., Wang, X., He, D., Li, L., Zeng, J."Capsaicin enhances anti-proliferation efficacy of pirarubicin via activating TRPV1 and inhibiting PCNA nuclear translocation in 5637 cells". Molecular Medicine Reports 13, no. 1 (2016): 881-887. https://doi.org/10.3892/mmr.2015.4623