Related Experiment Video
Updated: Aug 27, 2026
Competitive Genomic Screens of Barcoded Yeast Libraries
Published on: August 11, 2011
How to Use a Mutant Library to Identify Genes Required for Biofilm Formation in the Pathogenic Fungus Candida
Tania M Anderson1, Marcelio A Shammami1, Steven M Taddei1
1Department of Biology, College of Engineering and Science, University of Detroit Mercy, USA.
Abstract:
With over 1 billion infections and the causative agents showing critical diseases such as pancreatic cancer, the study of pathogenic fungi has never been more critical. In 2017, the United States spent $7.2 billion on fungal diseases. $4.5 billion was allocated to 75,055 hospitalizations, while $2.6 billion went to 8,993,230 outpatient visits. For Candida infections specifically, the cost was $1.4 billion. Currently, there are few classes of antifungals available, and resistance is growing. The identification of genes required for biofilm formation is essential for new antifungal development. This review details how to identify, verify, and characterize defective biofilm formation mutants in C. albicans. This includes how to run an in vitro biofilm formation assay, how to create clean deletions using the modified CRISPR-Cas9 system, how to assay to identify the potential causes of the defect, and how to create complementation strains to confirm the mutant defect.
Insights
Identifying genes for fungal biofilm formation is crucial for developing new antifungals. This review outlines methods to find and verify mutants with defective biofilms in Candida albicans, aiding antifungal drug discovery.
Area of Science:
- Medical Mycology
- Molecular Biology
- Antimicrobial Resistance
Background:
- Pathogenic fungi cause over 1 billion infections globally, leading to significant healthcare costs, exemplified by $7.2 billion spent in the US in 2017.
- Candida infections alone incurred $1.4 billion in costs, highlighting the economic burden of fungal diseases.
- Limited antifungal drug classes and increasing resistance necessitate novel therapeutic strategies, particularly targeting fungal virulence factors like biofilms.
Purpose of the Study:
- To provide a comprehensive review on identifying, verifying, and characterizing mutants with defective biofilm formation in Candida albicans.
- To detail methodologies for advancing the development of new antifungal agents by understanding biofilm genetics.
- To establish a framework for researchers to investigate genes essential for pathogenic fungal biofilm development.
Main Methods:
- Utilizing in vitro biofilm formation assays to screen for defective mutants.
- Employing the modified CRISPR-Cas9 system for precise gene deletion (clean deletions).
- Implementing assays to determine the cause of biofilm defects and creating complementation strains for confirmation.
Main Results:
- The review details established protocols for generating and validating Candida albicans mutants with impaired biofilm formation.
- It outlines strategies for pinpointing genes critical for biofilm development and function.
- The described methods enable robust characterization of biofilm-defective mutants.
Conclusions:
- Accurate identification and characterization of genes involved in fungal biofilm formation are essential for developing effective antifungal therapies.
- The reviewed methodologies provide a robust toolkit for researchers studying Candida albicans biofilms.
- This work supports the ongoing effort to combat rising antifungal resistance through novel drug target identification.
More Related Videos
11:14Visualization of Biofilm Formation in Candida albicans Using an Automated Microfluidic Device
Published on: December 14, 2017
09:24Use of In Vivo Imaging to Screen for Morphogenesis Phenotypes in Candida albicans Mutant Strains During Active Infection in a Mammalian Host
Published on: October 12, 2022
