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- W2287262557 abstract "Mechanisms and intracellular sites of photosensitized damage were investigated in cultured MGH-U1 cells treated with doxycycline (DOTC). Cells were examined by phase-contrast, fluorescence, and electron microscopy at various times (15 minutes to 24 hours) after ultraviolet irradiation (320-400 nm). DOTC localized selectively within the mitochondria, as shown by colocalized fluorescence with rhodamine 123 (R123). Photosensitization at 1 J/sq cm caused striking swelling of the mitochondrial matrix and disruption of the cristae, accompanied by loss of the ability of mitochondria to concentrate R123. These changes progressed during the first hour after irradiation, and then were followed by partial recovery of mitochondrial ultrastructure and function. At no time were other organelles seen to be affected. It appears that this selective, photosensitized alteration was a consequence of localized and partially reversible damage to the mitochondrial inner membrane. In contrast, exposure to 2-6 J/sq cm caused irreversible injury and necrosis." @default.
- W2287262557 created "2016-06-24" @default.
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- W2287262557 date "1988-11-01" @default.
- W2287262557 modified "2023-10-18" @default.
- W2287262557 title "Ultrastructure and dynamics of selective mitochondrial injury in carcinoma cells after doxycycline photosensitization in vitro." @default.
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- W2287262557 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/1880784" @default.
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