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Updated: Aug 24, 2026

Candida albicans Biofilm Chip (CaBChip) for High-throughput Antifungal Drug Screening
Published on: July 18, 2012
Fungal biofilms and drug resistance
Mary Ann Jabra-Rizk1, William A Falkler, Timothy F Meiller
1Department of Diagnostic Sciences and Pathology, Dental School, University of Maryland, Baltimore, Maryland 21201, USA. mar002@dental.umaryland.edu
Abstract:
Candida species, including the novel opportunistic pathogen Candida dubliniensis, are now emerging as major agents of nosocomial infections. Many such manifestations of infections associated with the formation of Candida biofilms include those occurring on devices such as indwelling intravascular catheters. Fungal biofilm-associated infections are frequently refractory to conventional therapy because of resistance to antimicrobial agents. This resistance could be in part due to the surface-induced upregulation of drug efflux pumps. Biofilm-associated Candida show uniform resistance to a wide spectrum of the currently available conventional antifungal agents, which implies that antimicrobial drugs that specifically target biofilm-associated infections are needed. The novel classes of antifungal agents, the lipid formulation of amphotericins, and the echinocandins have demonstrated unique antifungal activity against the resistant Candida biofilms, providing a breakthrough in the treatment of life-threatening invasive systemic mycoses. The use of drugs effective in combating biofilm-associated infections could lead to major developments in the treatment of fungal implant infections.
Insights
Emerging Candida species cause difficult-to-treat nosocomial infections, often on medical devices. New antifungal drugs like echinocandins show promise against resistant Candida biofilms.
Area of Science:
- Mycology
- Infectious Diseases
- Antimicrobial Resistance
Background:
- Candida species, including Candida dubliniensis, are increasingly causing hospital-acquired infections.
- Candida biofilms on medical devices, like catheters, are a significant clinical challenge.
- Biofilm-associated fungal infections are often resistant to standard antifungal treatments due to mechanisms like drug efflux pumps.
Purpose of the Study:
- To highlight the challenges posed by drug-resistant Candida biofilms.
- To review novel antifungal agents effective against these resistant biofilms.
- To discuss the implications for treating invasive fungal infections.
Main Methods:
- Literature review of antifungal resistance in Candida biofilms.
- Analysis of emerging antifungal agents and their efficacy.
- Discussion of clinical implications for biofilm-associated infections.
Main Results:
- Candida biofilms exhibit broad resistance to conventional antifungals.
- Novel antifungal classes, including lipid formulations of amphoterins and echinocandins, show activity against resistant biofilms.
- These newer agents represent a breakthrough for treating systemic mycoses.
Conclusions:
- Antifungal drug resistance in Candida biofilms necessitates the development of targeted therapies.
- Lipid formulations of amphoterins and echinocandins offer effective treatment options for biofilm-associated candidiasis.
- Advances in treating fungal implant infections are expected with drugs targeting biofilms.
Related Concept Videos
Biofilms
Development of Antibiotic Resistance
Antifungal Agents
Candidiasis
Mechanism of Antibiotic Resistance in MRSA
Clinical Significance of Antibiotic Resistance

