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- W2465623760 abstract "Candida glabrata, a haploid budding yeast, is the cause of severe systemic infections in immune-compromised hosts. The amount of free iron supplied to C. glabrata cells during systemic infections is severely limited by iron-chelating proteins such as transferrin. Thus, the iron-deficiency response in C. glabrata cells is thought to play important roles in their survival inside the host's body. In this study, we found that mitophagy was induced under iron-depleted conditions, and that the disruption of a gene homologous to ATG32, which is responsible for mitophagy in Saccharomyces cerevisiae, blocked mitophagy in C. glabrata. The mitophagic activity in C. glabrata cells was not detected on short-period exposure to nitrogen-starved conditions, which is a mitophagy-inducing condition used in S. cerevisiae. The mitophagy-deficient atg32Δ mutant of C. glabrata also exhibited decreased longevity under iron-deficient conditions. The mitochondrial membrane potential in Cgatg32Δ cells was significantly lower than that in wild-type cells under iron-depleted conditions. In a mouse model of disseminated infection, the Cgatg32Δ strain resulted in significantly decreased kidney and spleen fungal burdens compared with the wild-type strain. These results indicate that mitophagy in C. glabrata occurs in an iron-poor host tissue environment, and it may contribute to the longevity of cells, mitochondrial quality control, and pathogenesis." @default.
- W2465623760 created "2016-07-22" @default.
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- W2465623760 date "2016-06-27" @default.
- W2465623760 modified "2023-09-25" @default.
- W2465623760 title "Iron-depletion promotes mitophagy to maintain mitochondrial integrity in pathogenic yeast<i>Candida glabrata</i>" @default.
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- W2465623760 doi "https://doi.org/10.1080/15548627.2016.1183080" @default.
- W2465623760 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4968229" @default.
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