Open Access

Reversal of the tamoxifen‑resistant breast cancer malignant phenotype by proliferation inhibition with bromosulfonamidine amino‑podophyllotoxin

  • Authors:
    • Jiayi Wang
    • Fen Lv
    • Yinghua Zhu
    • Xiaomei Lu
    • Bao Zhang
  • View Affiliations

  • Published online on: June 13, 2024     https://doi.org/10.3892/ol.2024.14506
  • Article Number: 373
  • Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

One of the lignans isolated from plants within the genus Podophyllum is podophyllotoxin (PPT). PPT and its derivatives are pharmacologically active compounds with potential antiproliferative properties in several kinds of tumors. Although these compounds have been used to treat other malignancies, no PPT derivative‑based chemotherapeutic agent has been used to cure tamoxifen (TAM)‑resistant breast cancer in clinical trials, to the best of our knowledge. Thus, using TAM‑resistant breast cancer as a disease model, the present study assessed the effects of a recently synthesized PPT derivative, bromosulfonamidine amino‑PPT (BSAPPT), on TAM‑resistant breast cancer. Using the tamoxifen‑resistant breast cancer cell model (MCF‑7/TAMR) in vitro, Cell Counting Kit‑8 and colony formation assays were adopted to evaluate the effect of BSAPPT on cell proliferation. Cell apoptosis and cell cycle assays were used to assess the influence of BSAPPT on cell apoptosis and the cell cycle in MCF‑7/TAMR. The targets of the potential mechanism of action were analyzed by RT‑qPCR and western blotting. The present study demonstrated that BSAPPT suppressed MCF‑7/TAMR cell proliferation in a dose‑dependent manner. By modulating the level of expression of genes linked to both apoptosis and the cell cycle, BSAPPT triggered MCF‑7/TAMR cells to undergo apoptosis and prevented them from entering the cell cycle. Consequently, BSAPPT blocked these cells from proliferating, thereby halting the malignant advancement of TAM‑resistant breast cancer. Therefore, these findings indicate that new therapeutic agents involving BSAPPT may be developed to facilitate the treatment of TAM‑resistant breast cancer.
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August-2024
Volume 28 Issue 2

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Spandidos Publications style
Wang J, Lv F, Zhu Y, Lu X and Zhang B: Reversal of the tamoxifen‑resistant breast cancer malignant phenotype by proliferation inhibition with bromosulfonamidine amino‑podophyllotoxin. Oncol Lett 28: 373, 2024
APA
Wang, J., Lv, F., Zhu, Y., Lu, X., & Zhang, B. (2024). Reversal of the tamoxifen‑resistant breast cancer malignant phenotype by proliferation inhibition with bromosulfonamidine amino‑podophyllotoxin. Oncology Letters, 28, 373. https://doi.org/10.3892/ol.2024.14506
MLA
Wang, J., Lv, F., Zhu, Y., Lu, X., Zhang, B."Reversal of the tamoxifen‑resistant breast cancer malignant phenotype by proliferation inhibition with bromosulfonamidine amino‑podophyllotoxin". Oncology Letters 28.2 (2024): 373.
Chicago
Wang, J., Lv, F., Zhu, Y., Lu, X., Zhang, B."Reversal of the tamoxifen‑resistant breast cancer malignant phenotype by proliferation inhibition with bromosulfonamidine amino‑podophyllotoxin". Oncology Letters 28, no. 2 (2024): 373. https://doi.org/10.3892/ol.2024.14506