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- W2024758049 abstract "Mucosal infections caused by the pathogenic fungus Candida are a significant infectious disease problem and are often difficult to eradicate because of the high frequency of resistance to conventional antifungal agents. Photodynamic treatment (PDT) offers an attractive therapeutic alternative. Previous studies demonstrated that filamentous forms and biofilms of Candida albicans were sensitive to PDT using Photofrin as a photosensitizer. However, early stationary phase yeast forms of C. albicans and Candida glabrata were not adversely affected by treatment. We report that the cationic porphyrin photosensitizer meso-tetra (N-methyl-4-pyridyl) porphine tetra tosylate (TMP-1363) is effective in PDT against yeast forms of C. albicans and C. glabrata. Respiratory-deficient (RD) strains of C. albicans and C. glabrata display a pleiotropic resistance pattern, including resistance to members of the azole family of antifungals, the salivary antimicrobial peptides histatins and other types of toxic stresses. In contrast to this pattern, RD mutants of both C. albicans and C. glabrata were significantly more sensitive to PDT compared to parental strains. These data suggest that intact mitochondrial function may provide a basal level of anti-oxidant defense against PDT-induced phototoxicity in Candida, and reveals pathways of resistance to oxidative stress that can potentially be targeted to increase the efficacy of PDT against this pathogenic fungus." @default.
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- W2024758049 date "2008-09-01" @default.
- W2024758049 modified "2023-10-16" @default.
- W2024758049 title "Respiratory Deficiency Enhances the Sensitivity of the Pathogenic Fungus<i>Candida</i>to Photodynamic Treatment" @default.
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- W2024758049 doi "https://doi.org/10.1111/j.1751-1097.2007.00280.x" @default.
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