A Simple Nematode Infection Model for Studying Candida albicans Pathogenesis

Area of Science:

• Microbiology
• Pathogenesis research
• Model organism studies

Background:

• Candida albicans is an opportunistic pathogen and a common member of the human microbiome.
• C. albicans can cause severe mucosal and systemic infections in humans.
• The nematode Caenorhabditis elegans serves as a valuable model for studying microbial pathogenesis due to conserved host-microbe interactions.

Purpose of the Study:

• To outline detailed methodologies for using C. elegans as a host model to study C. albicans infection.
• To provide protocols for C. elegans egg preparation and an agar-based killing assay.
• To facilitate the study of C. albicans genetic mutants and their role in pathogenesis.

Main Methods:

• Preparation of C. elegans eggs for infection.
• Culturing of C. elegans on OP50 plates.
• Agar-based killing assay to monitor C. albicans virulence in C. elegans.
• Protocols for freezing and recovering C. elegans.
• Construction of a worm pick for handling nematodes.

Main Results:

• Established protocols for C. elegans egg preparation and C. elegans/C. albicans agar killing assay.
• Demonstrated the utility of C. elegans as a model host for studying C. albicans pathogenesis.
• Provided a framework for investigating C. albicans virulence factors and host-microbe interactions.

Conclusions:

• C. elegans offers a robust and accessible model system for studying C. albicans pathogenesis.
• The detailed protocols enable research into C. albicans virulence mechanisms and host responses.
• This methodology supports the genetic analysis of C. albicans virulence and host-microbe interactions.