Shigella and Enterotoxigenic Escherichia coli (ETEC) virulence proteins and toxoids

Other Shigella and ETEC virulence proteins/toxoids refers to a broad category of bacterial antigens used in the development of vaccines against shigellosis and Enterotoxigenic Escherichia coli (ETEC) infections. This group includes Shigella invasion plasmid antigens (IpaB, IpaC, IpaD), which are essential for the type III secretion system-mediated invasion of host intestinal cells (Source: PubMed, PMID: 28919239). It also encompasses ETEC colonization factors (CFs) and toxoids, such as the heat-labile enterotoxin (LT) or its non-toxic derivatives like dLT, which are critical for bacterial adherence and the induction of secretory diarrhea (Source: WHO, Diarrhoeal Disease). These proteins are fundamental to the pathogenesis of enteric diseases, which remain a leading cause of morbidity and mortality in children in low-income countries. Vaccines targeting these proteins, such as ETVAX or various Shigella conjugate candidates, aim to elicit mucosal IgA and systemic IgG responses to neutralize toxins and prevent bacterial colonization (Source: PATH, Enteric Vaccine Initiative). By targeting these virulence factors, researchers hope to provide broad protection against the diverse strains of Shigella and ETEC that cause significant global health burdens.

Other names

Shigella invasion plasmid antigensETEC colonization factorsHeat-labile enterotoxin toxoidsT3SS effector proteinsEnteric vaccine antigensIpa proteinsColonization factor antigens

Vaccine-mediated induction of neutralizing antibodies (IgA and IgG) that target bacterial invasion proteins and enterotoxins to prevent mucosal attachment and cellular entry.