Table 1.
Overview of antifungal drug classes and their mechanisms of action
| Class of antifungal drugs | Examples | Mechanism of action | References |
|---|---|---|---|
| Polyenes | Amphotericin B, nystatin | Penetrate fungal cell membrane and bind to ergosterol, forming pores that cause leakage of cellular content, leading to cell death | (de Oliveira Santos et al. 2018; Salazar et al. 2020; Wall and Lopez-Ribot 2020) |
| Azoles | Fluconazole, ketoconazole, clotrimazole, butoconazole, miconazole, econazole, itraconazole | Inhibit ergosterol biosynthesis, reducing membrane integrity, resulting in cell lysis and death | (Maertens 2004; de Oliveira Santos et al. 2018; Scorzoni et al. 2021) |
| Echinocandins | Caspofungin, anidulafungin, micafungin | Inhibit β-(1,3)-D-glucan synthase, blocking β-(1,3)-D-glucan synthesis, a key fungal cell wall component, causing cell lysis and death | Death (Salazar et al. 2020; Mroczyńska and Brillowska-Dąbrowska 2020; Szymański et al. 2022) |
| 5-Flucytosine | 5-Fluorocytosine | Enters fungal cells via cytosine permeases and is converted to 5-fluorouracil, inhibiting RNA and DNA synthesis, leading to cell death | (Salazar et al. 2020; Wall and Lopez-Ribot 2020) |
Unfortunately, none of these conventional antifungal drugs has the optimum profile, as all of them are associated with some limitations