| Autor: |
W U, Chengzhu, Meijia, Gao, Lin, Shen, L I, Bohan, Xiangjian, Bai, Jiahui, Gui, L I, Hongmei, Qiang, Huo, M A, Tao |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Die Pharmazie. 74(5) |
| ISSN: |
0031-7144 |
| Popis: |
In recent years, "drug repurposing" has become an important approach and focus of studies on anti-tumor drug research and development (RD). As one of the first-generation broad-spectrum imidazole anti-fungal drugs, miconazole (MCZ) exhibits anti-tumor effects in addition to its anti-fungal effect. However, no report has focused on examining the effect of MCZ on the proliferation and cell-death of human breast cancer MDA-MB-231 cells. MCZ significantly inhibited the proliferation of MDA-MB-231 cells in a concentration- and time-dependent manner. We also observed that MCZ induced both apoptosis and necroptosis in MDA-MB-231 cells. Transmission electron microscopy showed submicroscopic structures in these cells, which correspond to necrotic features, in addition to the characteristic features of apoptosis. Pretreatment of cells with z-VAD-fmk, an apoptosis inhibitor or Nec-1, a necroptosis inhibitor, significantly increased their viability compared with MCZ treatment. The initial mechanism of MCZ-mediated cell death in human breast cancer MDA-MB-231 cells involves an increase in the Bax/Bcl-2 ratio, downregulation of apoptosis induced by Akt and p-Akt-473, a simultaneous upregulation of the receptor-interacting protein 3 (RIP3) and mixed lineage kinase domain-like (MLKL) protein expression, and ROS production to induce necroptosis. Our results suggest that MCZ may be a potential lead compound for the development of anti-breast cancer drugs. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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