Candida albicans surface adhesin and cell-wall antigens

Candida albicans surface adhesin and cell-wall antigens represent a diverse group of glycoproteins and proteins essential for the pathogenicity and structural integrity of this opportunistic fungal pathogen. Key members include the Agglutinin-like sequence (Als) family, particularly Als3, and Hyphal wall protein 1 (Hwp1), which mediate the initial attachment of the fungus to host epithelial and endothelial cells as well as abiotic surfaces like medical implants. These antigens are critical for biofilm formation, tissue invasion, and the transition from yeast to hyphal forms, which is a hallmark of virulence. In the context of drug development, these surface components are primary targets for vaccines and immunotherapies, such as the NDV-3A vaccine, which aims to elicit protective T-cell and B-cell responses to prevent recurrent infections. By targeting these antigens, therapeutic strategies seek to inhibit fungal colonization, neutralize virulence factors, and enhance opsonophagocytic killing by the host immune system.

Other names

Candida albicans cell wall proteinsC. albicans adhesinsCandida surface antigensFungal cell wall glycoproteinsAgglutinin-like sequence proteinsHyphal wall proteinsAls3Hwp1Hyr1Mannan antigens

Induction of neutralizing and opsonizing antibodies; inhibition of fungal adhesion to host tissues; blockade of hyphal elongation and tissue invasion; enhancement of macrophage and neutrophil-mediated phagocytosis.