Caenorhabditis elegans as a model animal for investigating fungal pathogenesis
2019
The morbidity and mortality associated with systemic fungal infections in humans cannot be underestimated. The nematode Caenorhabditis elegans has become popular for the in vivo study of the pathogenesis of human fungal pathogens and as an antifungal drug-screening tool. C. elegans offers many advantages as a model organism for the study of human fungal diseases, including lack of ethics requirements, easy maintenance in the laboratory, fully sequenced genome, availability of genetic mutants, and the possibility of liquid assays for high-throughput antifungal screening. Its major drawbacks include the inability to grow at 37 °C and absence of an adaptive immune response. However, several virulence factors involved in the pathogenesis of medically important fungal pathogens have been identified using the C. elegans model, consequently providing new leads for drug discovery and potential drug targets. We review the use of C. elegans as a model animal to understand the pathogenesis of medically important human fungal pathogens and the discovery of novel antifungal compounds. The review makes a case for C. elegans as a suitable invertebrate model for a plethora of practical applications in the investigation of fungal pathogenesis as well as its amenability for liquid-based high-throughput screening of potential antifungal compounds.
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