Lenalidomide improvement of cisplatin antitumor efficacy on triple-negative breast cancer cells in vitro

  • Authors:
    • Lin‑Lin Yin
    • Xin‑Mian Wen
    • Qing‑Hua Lai
    • Jing Li
    • Xiu‑Wen Wang
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  • Published online on: February 27, 2018     https://doi.org/10.3892/ol.2018.8120
  • Pages: 6469-6474
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Abstract

Lenalidomide is an immunomodulatory drug and possesses anti-angiogenic and immunomodulatory activities against multiple myeloma. The present study assessed the in vitro effect of lenalidomide combined with cisplatin on MDA‑MB‑231, a triple‑negative breast cancer (TNBC) cell line and explored the underlying molecular mechanism of this combination. Cell viability, apoptosis and the protein expression of phosphorylated (p) and total extracellular signal‑regulated kinase (ERK), B‑cell lymphoma-2 (Bcl-2), caspase‑3, cleaved poly‑adenosine diphosphate‑ribose polymerase (cPARP), vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) were measured in MDA‑MB‑231 cells treated with different concentrations of lenalidomide, cisplatin and their combination using different biochemical assays. Lenalidomide demonstrated no significant effect on the cell viability of MDA‑MB‑231 cells, even at high concentrations, whereas lenalidomide in combination with cisplatin, significantly reduced cisplatin IC50 from 7.8 to 3.0 µM in MDA‑MB‑231 cells. In addition, lenalidomide and cisplatin in combination significantly induced cell apoptosis by 1.6- and 1.38-fold, respectively compared with lenalidomide and cisplatin alone (P<0.05). The expression levels of VEGF, bFGF and Bcl-2 proteins were significantly reduced (P<0.01), whereas caspase‑3 and cleaved PARP expression were significantly increased in MDA‑MB‑231 cells treated with the combination compared to those treated with single agents (P<0.01). Lenalidomide treatment alone significantly reduced the p-ERK level compared with the control (P<0.05) and cisplatin treatment alone significantly increased it (P<0.01), however treatment with them in combination significantly reduced the p-ERK level in MDA‑MB‑231 cells compared with cisplatin treatment alone (P<0.05). In conclusion, the present study provides the basis for using lenalidomide in combination with cisplatin in TNBC therapy.
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May-2018
Volume 15 Issue 5

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Copy and paste a formatted citation
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Spandidos Publications style
Yin LL, Wen XM, Lai QH, Li J and Wang XW: Lenalidomide improvement of cisplatin antitumor efficacy on triple-negative breast cancer cells in vitro. Oncol Lett 15: 6469-6474, 2018.
APA
Yin, L., Wen, X., Lai, Q., Li, J., & Wang, X. (2018). Lenalidomide improvement of cisplatin antitumor efficacy on triple-negative breast cancer cells in vitro. Oncology Letters, 15, 6469-6474. https://doi.org/10.3892/ol.2018.8120
MLA
Yin, L., Wen, X., Lai, Q., Li, J., Wang, X."Lenalidomide improvement of cisplatin antitumor efficacy on triple-negative breast cancer cells in vitro". Oncology Letters 15.5 (2018): 6469-6474.
Chicago
Yin, L., Wen, X., Lai, Q., Li, J., Wang, X."Lenalidomide improvement of cisplatin antitumor efficacy on triple-negative breast cancer cells in vitro". Oncology Letters 15, no. 5 (2018): 6469-6474. https://doi.org/10.3892/ol.2018.8120