Extracellular vesicles from diverse fungal pathogens induce species-specific and endocytosis-dependent immunomodulation.

ABSTRACT: Microbial pathogens generate extracellular vesicles (EVs) for intercellular communication and quorum sensing. Microbial EVs also induce inflammatory pathways within host innate immune cells. We previously demonstrated that EVs secreted by Candida albicans trigger type I interferon signaling in host cells specifically via the cGAS-STING innate immune signaling pathway. Here, we show that despite sharing similar properties of morphology and internal DNA content, the interactions between EVs and the innate immune system differ according to the parental fungal species. EVs secreted by C. albicans, Saccharomyces cerevisiae, Cryptococcus neoformans, and Aspergillus fumigatus are differentially endocytosed by murine macrophages triggering varied cytokine responses, innate immune signaling, and su

SUBMITTER: Kwaku GN 

PROVIDER: S-EPMC12157816 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature