ArticleNPJ biofilms and microbiomes2026
The Wor2 phenotypic switching regulator controls biofilm formation in Candida auris.
Article in NPJ biofilms and microbiomes, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The emerging fungal pathogen Candida auris is a serious global public health threat due to its ability to persist in healthcare environments and on human skin. Here, we report a prevalent cluster of clinical C. auris strains with enhanced biofilm formation, a contributor to environmental and skin persistence. Genomic analyses show that the clinical isolates with enhanced biofilm formation ability carry a loss-of-function mutation in the WOR2 locus, which encodes a white-opaque switching regulator in Candida species. Analysis of 13,314 published genomes revealed that 3104 strains (23.3%) harbor nonsense or frameshift mutations in WOR2, indicating frequent clinical occurrence. Deletion of WOR2 in a clinical strain markedly increased biofilm formation, whereas reintroduction of an intact WOR2 significantly attenuated biofilm development. Further analyses show that Wor2 inactivation upregulates GFC1, ALS4, and multiple biofilm-associated genes. Together, these findings reveal a key regulatory mechanism underlying biofilm development, environmental persistence, and transmission of C. auris.
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