Fungal cell wall and membrane integrity (disruption target) (null)

Fungal cell wall and membrane integrity disruption is a central antifungal mechanism targeting structural components unique to fungi, particularly the β-glucan and chitin polysaccharides of the cell wall, and ergosterol of the cell membrane. Enzymes, antibiotics, and small molecules may act by permeabilizing the plasma membrane, forming pores, inhibiting biosynthetic enzymes, or destabilizing essential membrane sterols. This results in the loss of ion gradients, leakage of cellular contents, and ultimately fungal cell death. Examples include polyenes (which bind ergosterol to form pores), azoles (which block ergosterol biosynthesis), echinocandins (which inhibit β-glucan synthesis), and lytic peptides/enzymes (that degrade cell wall components). While highly effective, these agents may have off-target toxicity and face resistance mechanisms such as target modification or efflux pump overexpression[1][2][3][5][6][7][8][9].

Other names

Disruption of fungal cell wall integrityDisruption of fungal membrane integrityFungal membrane permeabilizationFungal cell envelope disruption

Disruption of membrane integrity (often via pore formation or membrane destabilization) Inhibition of cell wall biosynthesis (e.g., inhibition of enzymes required for β-glucan or chitin synthesis) Chelation/disruption of essential cofactors for cell wall/membrane biosynthetic enzymes Direct binding to membrane sterols (e.g., ergosterol) Induction of oxidative stress and downstream cell death