Candida glabrata surface antigens

Candida glabrata surface antigens are a diverse collection of proteins and carbohydrates located on the fungal cell wall that mediate critical interactions with the host environment. The most prominent members are the epithelial adhesins (Epa), such as Epa1, which are glycosylphosphatidylinositol (GPI)-anchored proteins that facilitate binding to host epithelial cells by recognizing galactosyl residues (Cormack et al., 1999; PubMed: 10049380). Other significant antigens include mannoproteins and Pir-like wall proteins (Pwp), which contribute to the structural integrity of the cell wall and the formation of biofilms, a key factor in the pathogen's high resistance to antifungal treatments (Timmermans et al., 2018; PubMed: 29445911). These surface structures are essential for the transition from commensalism to invasive disease, particularly in immunocompromised patients. As therapeutic targets, these antigens are the focus of vaccine development and monoclonal antibody research aimed at neutralizing fungal virulence and enhancing host immune clearance. For example, the NDV-3A vaccine, which targets the Als3 protein in Candida albicans, has demonstrated cross-protective potential against C. glabrata due to the structural homology of surface adhesins (Ibrahim et al., 2013; PubMed: 23610331). Additionally, experimental monoclonal antibodies targeting specific Epa proteins or cell wall mannans are being investigated to block colonization and prevent systemic dissemination (de Groot et al., 2013; PubMed: 23022335). These immunotherapeutic approaches represent a vital strategy for managing infections caused by C. glabrata, which is frequently resistant to conventional azole and echinocandin therapies.

Other names

Candida glabrata cell wall proteinsC. glabrata adhesinsC. glabrata mannoproteinsC. glabrata surfaceome

Inhibition of fungal adhesion to host tissues; induction of opsonophagocytosis; neutralization of cell wall-associated virulence factors.