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- W2890210516 abstract "Sonodynamic therapy (SDT), based on the synergistic effect of low-intensity ultrasound and sonosensitizer, is a potential approach for non-invasive treatment of cancers. In SDT, mitochondria played a crucial role in cell fate determination. However, mitochondrial activities and their response to SDT remain elusive. The purpose of this study was to examine the response of mitochondria to SDT in tumor cells.A human breast adenocarcinoma cell line - MCF-7 cells were subjected to 5-aminolevulinic acid (ALA)-SDT, with an average ultrasonic intensity of 0.25W/cm2. Mitochondrial dynamics and redox balance were examined by confocal immunofluorescence microscopy and western blot. The occurrence of mitophagy was determined by confocal immunofluorescence microscopy.Our results showed that ALA-SDT could induce mitochondrial dysfunction through mitochondrial depolarization and fragmentation and lead to mitophagy. The Parkin-dependent signaling pathway was involved and promoted resistance to ALA-SDT induced cell death. Finally, excessive production of ROS was found to be necessary for the initiation of mitophagy.Taken together, we conclude that ROS produced by 5-ALA-SDT could initiate PINK1/Parkin-mediated mitophagy which may exert a protective effect against 5-ALA-SDT-induced cell death in MCF-7 cells." @default.
- W2890210516 created "2018-09-27" @default.
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- W2890210516 date "2018-01-01" @default.
- W2890210516 modified "2023-10-16" @default.
- W2890210516 title "PINK1/Parkin-Mediated Mitophagy Promotes Resistance to Sonodynamic Therapy" @default.
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- W2890210516 doi "https://doi.org/10.1159/000493629" @default.
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