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Bio-energetics Investigation of Candida albicans Using Real-time Extracellular Flux Analysis
Published on: March 19, 2019
Opportunistic yeast pathogens: reservoirs, virulence mechanisms, and therapeutic strategies
Elizabeth J Polvi1, Xinliu Li, Teresa R O'Meara
1Department of Molecular Genetics, University of Toronto, 1 King's College Circle, Medical Sciences Building, Room 4368, Toronto, ON, M5S 1A8, Canada.
Abstract:
Life-threatening invasive fungal infections are becoming increasingly common, at least in part due to the prevalence of medical interventions resulting in immunosuppression. Opportunistic fungal pathogens of humans exploit hosts that are immunocompromised, whether by immunosuppression or genetic predisposition, with infections originating from either commensal or environmental sources. Fungal pathogens are armed with an arsenal of traits that promote pathogenesis, including the ability to survive host physiological conditions and to switch between different morphological states. Despite the profound impact of fungal pathogens on human health worldwide, diagnostic strategies remain crude and treatment options are limited, with resistance to antifungal drugs on the rise. This review will focus on the global burden of fungal infections, the reservoirs of these pathogens, the traits of opportunistic yeast that lead to pathogenesis, host genetic susceptibilities, and the challenges that must be overcome to combat antifungal drug resistance and improve clinical outcome.
Insights
Invasive fungal infections are rising in immunocompromised individuals. Combating antifungal drug resistance and improving diagnostics are crucial for better patient outcomes worldwide.
Area of Science:
- Mycology
- Infectious Diseases
- Immunology
Background:
- Invasive fungal infections (IFIs) are a growing global health concern, particularly in immunocompromised patients.
- Opportunistic fungal pathogens exploit weakened immune systems, leading to severe infections from commensal or environmental sources.
- Fungal pathogens possess traits like host survival and morphological switching that contribute to disease.
Purpose of the Study:
- To review the global burden of fungal infections.
- To explore fungal pathogen reservoirs and pathogenic traits.
- To address challenges in combating antifungal drug resistance and improving clinical outcomes.
Main Methods:
- Literature review focusing on global fungal infection data.
- Analysis of fungal pathogen characteristics and host genetic factors.
- Examination of current diagnostic limitations and treatment strategies.
Main Results:
- Increased incidence of IFIs linked to medical immunosuppression.
- Identification of key virulence factors in opportunistic fungi.
- Rising antifungal drug resistance poses a significant clinical challenge.
Conclusions:
- Urgent need for improved diagnostic tools and novel therapeutic strategies.
- Addressing antifungal resistance is critical for managing IFIs.
- Enhanced understanding of host-pathogen interactions is essential for clinical advancement.
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