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Candida albicans: A Model Organism for Studying Fungal Pathogens
M Anaul Kabir1, Mohammad Asif Hussain, Zulfiqar Ahmad
1Molecular Genetics Laboratory, School of Biotechnology, National Institute of Technology Calicut, Calicut 673601, Kerala, India.
Abstract:
Candida albicans is an opportunistic human fungal pathogen that causes candidiasis. As healthcare has been improved worldwide, the number of immunocompromised patients has been increased to a greater extent and they are highly susceptible to various pathogenic microbes and C. albicans has been prominent among the fungal pathogens. The complete genome sequence of this pathogen is now available and has been extremely useful for the identification of repertoire of genes present in this pathogen. The major challenge is now to assign the functions to these genes of which 13% are specific to C. albicans. Due to its close relationship with yeast Saccharomyces cerevisiae, an edge over other fungal pathogens because most of the technologies can be directly transferred to C. albicans from S. cerevisiae and it is amenable to mutation, gene disruption, and transformation. The last two decades have witnessed enormous amount of research activities on this pathogen that leads to the understanding of host-parasite interaction, infections, and disease propagation. Clearly, C. albicans has emerged as a model organism for studying fungal pathogens along with other two fungi Aspergillus fumigatus and Cryptococcus neoformans. Understanding its complete life style of C. albicans will undoubtedly be useful for developing potential antifungal drugs and tackling Candida infections. This will also shed light on the functioning of other fungal pathogens.
Insights
Candida albicans is a major fungal pathogen causing infections in immunocompromised individuals. Research is advancing to understand its genes and lifestyle for developing new antifungal drugs.
Area of Science:
- Mycology
- Infectious Diseases
- Genomics
Background:
- Candida albicans is an opportunistic human fungal pathogen responsible for candidiasis.
- Increased numbers of immunocompromised patients heighten susceptibility to pathogens like C. albicans.
- The availability of the C. albicans genome sequence aids in identifying its gene repertoire.
Purpose of the Study:
- To assign functions to the genes of Candida albicans, particularly the 13% unique to this pathogen.
- To leverage the genetic tractability of C. albicans, facilitated by its relationship with Saccharomyces cerevisiae.
- To advance the understanding of host-parasite interactions and disease mechanisms.
Main Methods:
- Comparative genomics to identify C. albicans-specific genes.
- Utilizing established molecular techniques transferable from Saccharomyces cerevisiae, including mutation, gene disruption, and transformation.
- Extensive research over two decades focusing on host-pathogen interactions.
Main Results:
- Identification of a gene repertoire within C. albicans, with a significant portion being pathogen-specific.
- Demonstration of C. albicans as a model organism for studying fungal pathogens, alongside Aspergillus fumigatus and Cryptococcus neoformans.
- Accumulated knowledge on host-parasite interactions, infection pathways, and disease progression.
Conclusions:
- Understanding the complete lifestyle of C. albicans is crucial for developing novel antifungal therapies.
- Insights gained from studying C. albicans can inform the development of strategies against other fungal pathogens.
- C. albicans serves as a vital model for advancing fungal research and combating candidiasis.
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