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Author Spotlight: Enhancing Candida albicans Detection in Catheter Infections Using Fluorescent Protein Tagging
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Serial Systemic Candida albicans Infection Highlighted by Proteomics
Glaucia Sayuri Arita1, Jean Eduardo Meneguello1, Karina Mayumi Sakita1
1Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, Brazil.
Frontiers in Cellular and Infection Microbiology
|July 12, 2019
Summary
Serial infection of mice with Candida albicans increased pathogen virulence. Proteomic analysis revealed changes in proteins related to metabolism and virulence factors, deepening understanding of host-pathogen interactions.
Area of Science:
- Microbiology
- Infectious Diseases
- Proteomics
Background:
- Candida albicans causes significant nosocomial bloodstream infections with high mortality.
- Understanding host-pathogen interactions is crucial for combating C. albicans infections.
Purpose of the Study:
- To investigate changes in the protein profile of C. albicans during serial systemic infections in a murine model.
- To evaluate the impact of repeated infections on C. albicans pathogenicity.
Main Methods:
- Proteomic analysis using liquid chromatography-tandem mass spectrometry (LC-MS/MS).
- Serial systemic infection model in mice with C. albicans.
- Comparison of protein profiles from wild-type and recovered C. albicans strains across infection passages.
Main Results:
- Reduced median survival time in infected animals with increasing passage number, indicating enhanced pathogenicity.
- Identification of varying protein abundances across passages, with major roles in carbohydrate metabolism, stress responses, and amino acid metabolism.
- Proteins associated with virulence traits like biofilm production, yeast-to-hyphae transition, and stress responses were identified.
Conclusions:
- Serial infection models combined with proteomic analysis provide valuable insights into host-pathogen dynamics.
- C. albicans exhibits adaptive changes in protein expression during prolonged or repeated infections.
- Further research into identified proteins can reveal novel therapeutic targets for C. albicans infections.
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