品脱1
粒体自噬
癌症研究
帕金
自噬
乳腺癌
生物
癌症
线粒体
线粒体通透性转换孔
药理学
细胞生物学
医学
细胞凋亡
程序性细胞死亡
内科学
生物化学
遗传学
疾病
帕金森病
作者
Yongqi Zhen,Zhaoxin Yuan,Jiahui Zhang,Yao Chen,Yuning Fu,Yi Liu,Leilei Fu,Lan Zhang,Xian‐Li Zhou
标识
DOI:10.1038/s41419-022-04823-8
摘要
Abstract Breast cancer is still one of the most common malignancies worldwide and remains a major clinical challenge. We previously reported that the anthelmintic drug flubendazole induced autophagy and apoptosis via upregulation of eva-1 homolog A (EVA1A) in triple-negative breast cancer (TNBC) and was repurposed as a novel anti-tumor agent. However, the detailed underlying mechanisms remain unclear and need further investigation. Here, we found that flubendazole impairs the permeability of the mitochondrial outer membrane and mitochondrial function in breast cancer. Meanwhile, flubendazole increased dynamin-related protein (DRP1) expression, leading to the accumulation of PTEN induced putative kinase 1 (PINK1) and subsequent mitochondrial translocation of Parkin, thereby promoting excessive mitophagy. The resultant excessive mitophagy contributed to mitochondrial damage and dysfunction induced by flubendazole, thus inhibiting breast cancer cells proliferation and migration. Moreover, we demonstrated that excessive DRP1-mediated mitophagy played a critical role in response to the anti-tumor effects of EVA1A in breast cancer. Taken together, our results provide new insights into the molecular mechanisms in relation to the anti-tumor activities of flubendazole, and may be conducive to its rational use in potential clinical applications.
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