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- W4383500559 abstract "ABSTRACT The application of near infrared (NIR)-light to living systems has been suggested as a potential method to enhance tissue repair, decrease inflammation, and possibly mitigate cancer therapy-associated side effects. In this study, we examined the effect of exposing three cell lines: breast cancer (MCF7), non-cancer breast cells (MCF10A), and lung fibroblasts (IMR-90), to 734 nm NIR-light for 20 minutes per day for six days, and measuring changes in cellular senescence. Positive senescent populations were induced using doxorubicin. Flow cytometry was used to assess relative levels of senescence together with mitochondria-related variables. Exposure to NIR-light significantly increased the level of senescence in MCF7 cells (13.5%; P<0.01), with no observable effects on MCF10A or IMR-90 cell lines. NIR-induced senescence was associated with significant changes in mitochondria homeostasis, including raised ROS level (36.0%; P<0.05) and mitochondrial membrane potential (14.9%; P<0.05), with no changes in mitochondrial Ca 2+ . These results suggest that NIR-light exposure can significantly arrest the proliferation of breast cancer cells via inducing senescence, while leaving non-cancerous cell lines unaffected." @default.
- W4383500559 created "2023-07-08" @default.
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- W4383500559 date "2023-07-07" @default.
- W4383500559 modified "2023-10-03" @default.
- W4383500559 title "Near infrared-light treatment alters mitochondrial homeostasis to induce senescence in breast cancer cells" @default.
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- W4383500559 doi "https://doi.org/10.1101/2023.07.06.547935" @default.
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