The prebiotic inulin affects virulence factor expression in Candida albicans

Area of Science:

• Microbiology
• Immunology
• Nutritional Science

Background:

• Prebiotics like inulin offer health benefits, but their impact on the gut fungus Candida albicans is unknown.
• Candida albicans is an opportunistic pathogen residing in the human gut.

Purpose of the Study:

• To investigate the effects of inulin on Candida albicans gene expression and virulence.
• To understand how inulin influences host-pathogen interactions.

Main Methods:

• RNA sequencing to analyze gene expression changes in C. albicans.
• Assays for fungal cell wall properties, adhesion, and hyphal development.
• In vitro studies with human cell lines and an invertebrate infection model.

Main Results:

• Inulin altered C. albicans gene expression related to cell wall, adhesion, and morphogenesis.
• Inulin inhibited hyphal growth, increased adhesion, and modified cell wall structure.
• Inulin reduced C. albicans virulence in an invertebrate model and affected antifungal drug sensitivity.

Conclusions:

• Dietary inulin influences Candida albicans phenotypes and host immune responses.
• Inulin supplementation may attenuate C. albicans virulence, potentially reducing infection risk.