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  • 1
    Publication Date: 2018-03-06
    Description: Background/Aim: Breast cancer is the most common malignant cancer type in women, and triple-negative breast cancer (TNBC) is an extremely aggressive subtype of breast cancer with poor prognosis rates. The present study investigated the antitumor effect of polo-like kinase 1 (PLK1) inhibitor in combination with the tankyrase-1 (TNKS1) inhibitor on TNBC cells. Materials and Methods: We evaluated the antitumor effects of combination therapy with PLK1 and TNKS1 inhibitor using cell viability analysis, apoptosis assay and transwell assay for cell invasion and migration in TNBC cells. Results: Combination treatment with PLK1 and TNKS1 inhibitors not only inhibited the invasion and migration capacity of TNBC cells, but also increased the apoptosis and cell death of TNBC cells. The viability of TNBC cells with low expression of β-catenin and high expression of PLK1 was not affected by treatment with PLK1 inhibitor. However, the combination treatment with the TNKS1 inhibitor significantly decreased cell invasion and migration and increased apoptosis. Conclusion: Combination therapy of PLK1 and TNKS1 inhibitors may improve the therapeutic efficacy of the current treatment for TNBC.
    Print ISSN: 0250-7005
    Electronic ISSN: 1791-7530
    Topics: Medicine
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