Fungal nutrient uptake systems

Fungal nutrient uptake systems are a diverse group of membrane-bound proteins responsible for the acquisition of essential elements and compounds from the host environment, including iron, zinc, nitrogen, and carbon (Nature Reviews Microbiology, 2016, 14(11):695-708). These systems are critical for fungal survival, proliferation, and virulence, as the host often limits nutrient availability as an immune defense known as nutritional immunity (Nature Reviews Microbiology, 2012, 10(8):525-537). Because many of these transporters, such as siderophore-iron transporters (e.g., Sit1) or specific zinc permeases (e.g., Zrt1), are unique to fungi or significantly different from their human counterparts, they represent attractive targets for antifungal therapy (Current Opinion in Microbiology, 2017, 40:14-20). Strategies include direct inhibition of transporter function or the use of 'Trojan Horse' approaches, where antifungal agents are conjugated to nutrients to facilitate their entry into the fungal cell (Advanced Drug Delivery Reviews, 2017, 110-111:127-146). Targeting these systems is particularly relevant in treating invasive infections caused by pathogens like Candida albicans and Aspergillus fumigatus, where nutrient acquisition is a rate-limiting step for disease progression (Frontiers in Cellular and Infection Microbiology, 2018, 8:334).

Other names

Fungal nutrient transportersFungal permeasesFungal solute uptake systemsFungal membrane transporters

Inhibition of essential nutrient acquisition or utilization of transporters for the targeted delivery of antifungal toxins (Trojan Horse strategy).