Cited by 823Antifungal resistance and susceptibilityFungal Plant Pathogen ControlFungal and yeast genetics research

Antifungal Drug Resistance: Molecular Mechanisms in Candida albicans and Beyond

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Lee, Yunjin, Puumala, Emily, Robbins, Nicole, Cowen, Leah E.·2021·Chemical Reviews

Abstract

Fungal infections are a major contributor to infectious disease-related deaths across the globe. Candida species are among the most common causes of invasive mycotic disease, with Candida albicans reigning as the leading cause of invasive candidiasis. Given that fungi are eukaryotes like their human host, the number of unique molecular targets that can be exploited for antifungal development remains limited. Currently, there are only three major classes of drugs approved for the treatment of invasive mycoses, and the efficacy of these agents is compromised by the development of drug resistance in pathogen populations. Notably, the emergence of additional drug-resistant species, such as Candida auris and Candida glabrata, further threatens the limited armamentarium of antifungals available to treat these serious infections. Here, we describe our current arsenal of antifungals and elaborate on the resistance mechanisms Candida species possess that render them recalcitrant to therapeutic intervention. Finally, we highlight some of the most promising therapeutic strategies that may help combat antifungal resistance, including combination therapy, targeting fungal-virulence traits, and modulating host immunity. Overall, a thorough understanding of the mechanistic principles governing antifungal drug resistance is fundamental for the development of novel therapeutics to combat current and emerging fungal threats.

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Crossref · 10.1021/acs.chemrev.0c00199

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  • Large-scale genomic alterations, including aneuploidy, loss-of-heterozygosity, and chromosomal rearrangements, can affect the expression of drug targets, efflux pumps, and other resistance factors.

    “In addition, large-scale genomic alterations, including aneuploidy, loss-of-heterozygosity (LOH), and chromosomal rearrangements, can affect the expression of drug targets, efflux pumps, and other resistance factors (7).”
  • ERG11 mutations lead to either overexpression of the enzyme itself or alterations in its activity that lower fluconazole's binding strength.

    “These mutations lead to either the overexpression of the enzyme itself (14) or alterations in its activity that can lower fluconazole’s binding strength, leading to reduced drug effectiveness (15).”
  • The echinocandins display negligible antifungal activity against Cryptococcus spp.

    “the only new class of antifungal drugs developed in decades, the echinocandins, displays negligible antifungal activity against Cryptococcus spp.”
  • Cryptococcus spp. are intrinsically resistant to echinocandins and employ defences that enable resistance to azoles.

    “Treatment options for invasive cryptococcal infection are limited, given that Cryptococcus spp. are intrinsically resistant to echinocandins and that they employ an arsenal of defences that enable resistance to azoles2,8.”
  • Amphotericin B has been the primary treatment for cryptococcal infection for more than half a century, despite causing substantial toxicity and limited availability due to economic and logistical constraints.

    “the polyene amphotericin B has been the primary treatment for cryptococcal infection for more than half a century, despite the fact that it causes substantial toxicity and that its availability is limited by economic and logistical constraints2,4”

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Research works printed but not linked: 1

  1. [128]Besterman J; Nguyen DT; Ste-Croix H MGCD290, an Oral Fungal Hos2 Inhibitor, Enhances the Antifungal Properties of Fluconazole Following Multiple-or Single-Dose Oral Administration in Pre-and Post-Infection Settings. In Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC); MethylGene, Inc.: San Francisco, CA, 2012; Vol. Poster M-1711.

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Authors
Lee, Y., Puumala, E., Robbins, N., & Cowen, L. E.
Affiliations
University of Toronto (CA)
Corresponding author
Cowen, Leah E.
Venue
Chemical Reviews
Published
2020-05-22
Volume
121
Issue
6
Pages
3390-3411
ISSN
  • 0009-2665 (ISSN-L)
  • 1520-6890
OpenAlex
W3026958586
Cited by
801
References
237
Citations by year
2026: 109 · 2025: 192 · 2024: 168 · 2023: 133 · 2022: 132 · 2021: 63 · 2020: 4
FWCI
3.96
Type
journal article
Language
en
Open access
Locations
  • Chemical Reviews (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Canadian Institutes of Health Research (FDN-154288)
  • National Institute of Allergy and Infectious Diseases (1R01AI127375-01)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Fungal Plant Pathogen Control
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
Keywords
antifungal resistance, Candida albicans, Candida auris, Candida glabrata, invasive candidiasis, antifungal agents, molecular mechanisms of resistance, combination antifungal therapy, fungal virulence factors, emerging fungal pathogens
MeSH terms
Drug Development, Animals, Antifungal Agents, Candida, Candida albicans, Drug Therapy, Combination, Humans, Mycoses, Virulence, Molecular Structure, Signal Transduction, Drug Resistance, Fungal, Candida glabrata

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