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Bio-energetics Investigation of Candida albicans Using Real-time Extracellular Flux Analysis
Published on: March 19, 2019
Investigating the function of Ddr48p in Candida albicans
I A Cleary1, N B MacGregor, S P Saville
1Department of Biology and South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, Texas, USA.
Eukaryotic Cell
|April 24, 2012
Summary
The damage response protein Ddr48p is not essential for Candida albicans filamentation but is crucial for DNA damage response and nutrient starvation-induced flocculation, impacting pathogenesis.
Area of Science:
- Mycology
- Molecular Biology
- Pathogenesis Research
Background:
- Candidiasis is a frequent nosocomial infection, with *Candida albicans* posing a growing threat due to increased immunocompromised individuals.
- Key virulence factors of *C. albicans* include biofilm formation and filamentation.
- The function of the upregulated damage response protein Ddr48p during these processes was previously unknown.
Purpose of the Study:
- To investigate the function of Ddr48p in *Candida albicans*.
- To determine the role of Ddr48p in biofilm formation and filamentation.
- To explore Ddr48p's contribution to stress response and pathogenesis.
Main Methods:
- Gene deletion of *DDR48* in *Candida albicans*.
- Assessment of biofilm formation and filamentation.
- Evaluation of response to environmental stressors and antifungal agents.
- Analysis of DNA damage response and flocculation.
Main Results:
- Ddr48p is not essential for *C. albicans* viability or filamentation.
- *DDR48* is required for flocculation under amino acid starvation conditions.
- Ddr48p contributes to the DNA damage response and influences sensitivity/resistance to certain stressors.
Conclusions:
- Ddr48p is dispensable for filamentation but plays a specific role in stress response pathways.
- The protein is involved in sensing and responding to host environmental changes, impacting pathogenesis.
- Ddr48p's function extends beyond general stress response, highlighting its specific role in virulence.
