Brown University

Leveraging Organoid Models to Study Candida-Host Interactions and Candidalysin-Dependent Damage in Vulvovaginal and Systemic Candidiasis.

Description

Abstract:
Given the widespread nature of vulvovaginal candidiasis, understanding the molecular mechanisms underlying its pathogenesis and systemic spread could inform therapeutic development. This study uses vaginal and colon epithelial organoid models to assess transcriptional and inflammatory responses of mammalian hosts to Candida albicans and its secreted toxin, candidalysin. Due to the limitations of three-dimensional organoids in examining infectious disease, we optimize their use for the study of Candida-host interactions by generating vaginal epithelial organoid-derived monolayers. RNA-seq analysis reveals an upregulation in hypoxic-stress that was corroborated by a perturbation of oxygen consumption rates following infection with C. albicans within the vaginal epithelia. Through a variety of in vitro cell viability assays, we show that candidalysin facilities adhesion, cell death, and can compromise barrier integrity. This data highlights the potential translational role of Candidalysin as a therapeutic target in the treatment of candidiasis and the appeal of organoid models in identifying novel respiration-related phenotypes.
Notes:
Thesis (Sc. M.)--Brown University, 2025

Citation

Khalil, Aseel Khalil Hussein, "Leveraging Organoid Models to Study Candida-Host Interactions and Candidalysin-Dependent Damage in Vulvovaginal and Systemic Candidiasis." (2025). Biology and Medicine Theses and Dissertations, Biotechnology. Brown Digital Repository. Brown University Library. https://repository.library.brown.edu/studio/item/bdr:u3zda58e/

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