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Filamentation protects Candida albicans from amphotericin B-induced programmed cell death via a mechanism involving the yeast metacaspase, MCA1.


ABSTRACT: The budding yeast Candida albicans is one of the most significant fungal pathogens worldwide. It proliferates in two distinct cell types: blastopores and filaments. Only cells that are able to transform from one cell type into the other are virulent in mouse disease models. Programmed cell death is a controlled form of cell suicide that occurs when C. albicans cells are exposed to fungicidal drugs like amphotericin B and caspofungin, and to other stressful conditions. We now provide evidence that suggests that programmed cell death is cell-type specific in yeast: Filamentous C. albicans cells are more resistant to amphotericin B- and caspofungin-induced programmed cell death than their blastospore counterparts. Finally, our genetic data suggests that this phenomenon is mediated by a protective mechanism involving the yeast metacaspase, MCA1.

SUBMITTER: Laprade DJ 

PROVIDER: S-EPMC5036395 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature

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Filamentation protects <i>Candida albicans</i> from amphotericin B-induced programmed cell death via a mechanism involving the yeast metacaspase, <i>MCA1</i>.

Laprade David J DJ   Brown Melissa S MS   McCarthy Morgan L ML   Ritch James J JJ   Austriaco Nicanor N  

Microbial cell (Graz, Austria) 20160701 7


The budding yeast <i>Candida albicans</i> is one of the most significant fungal pathogens worldwide. It proliferates in two distinct cell types: blastopores and filaments. Only cells that are able to transform from one cell type into the other are virulent in mouse disease models. Programmed cell death is a controlled form of cell suicide that occurs when <i>C. albicans</i> cells are exposed to fungicidal drugs like amphotericin B and caspofungin, and to other stressful conditions. We now provid  ...[more]

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