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Whole Genome Sequencing of Candida glabrata for Detection of Markers of Antifungal Drug Resistance
Published on: December 28, 2017
The Silent Pandemic: Antifungal Resistance and the Future of Invasive Fungal Disease Management
Ruchika Bagga1,2, Kumudhavalli Kavanoor Sridhar3
1Department of Pathobiology and Laboratory Medicine, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 3K7, Canada.
Abstract:
Invasive fungal diseases (IFDs) represent an escalating global health threat, compounded by the rapid emergence of antifungal resistance (AFR). This review synthesizes the contemporary landscape of AFR from clinical and microbiological perspectives, providing actionable insights for clinical practitioners. We examine the epidemiology of critical pathogens, including Candidozyma auris, clonal Candida parapsilosis, azole-resistant Aspergillus fumigatus, and dissect the underlying molecular mechanisms, from genetic mutations in ERG11 and cyp51A to novel emerging epigenetic and adaptive strategies. We critically appraise the diagnostic gap between phenotypic testing and clinical urgency, highlighting the role of rapid molecular assays and next-generation sequencing. Finally, we evaluate evidence-based therapeutic strategies, including the integration of novel agents such as rezafungin, ibrexafungerp, olorofim, and fosmanogepix), while emphasizing the imperative of antifungal stewardship, infection prevention and control in mitigating resistance, and "One-Health" interventions.
Insights
Antifungal resistance (AFR) is a growing threat in invasive fungal diseases (IFDs). This review covers AFR epidemiology, molecular mechanisms, diagnostics, and new treatments to guide clinicians.
Area of Science:
- Medical Mycology
- Infectious Diseases
- Antimicrobial Resistance
Background:
- Invasive fungal diseases (IFDs) pose a significant global health challenge.
- Antifungal resistance (AFR) is rapidly emerging, complicating treatment.
- Current antifungal arsenal is limited, necessitating new strategies.
Purpose of the Study:
- To provide a comprehensive overview of the current landscape of antifungal resistance (AFR).
- To offer actionable insights for clinical practitioners managing IFDs.
- To synthesize clinical and microbiological perspectives on AFR.
Main Methods:
- Review of contemporary clinical and microbiological data on AFR.
- Examination of epidemiology of key fungal pathogens.
- Analysis of molecular mechanisms driving resistance.
- Appraisal of diagnostic tools and therapeutic strategies.
Main Results:
- Identified critical pathogens: Candida auris, Candida parapsilosis, Aspergillus fumigatus.
- Dissected molecular mechanisms: ERG11, cyp51A mutations, epigenetic changes.
- Highlighted diagnostic gaps and the role of molecular assays.
- Evaluated novel antifungal agents and stewardship principles.
Conclusions:
- AFR is a complex challenge requiring integrated approaches.
- Rapid diagnostics and novel therapeutics are crucial for managing IFDs.
- Antifungal stewardship and One Health interventions are essential to combat resistance.
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