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Enterotoxigenic Escherichia coli (ETEC) Antigens (ETEC Antigens)
- Target
- ETEC Antigens
- Molecular classification
- Surface Polysaccharides, Fimbrial Adhesins, Secreted Toxins, Adhesins, Proteases
01
Overview
Enterotoxigenic Escherichia coli (ETEC) antigens are a diverse group of molecules, including O and H serogroups, colonization factor antigens (CFAs), and heat-labile (LT) and heat-stable (ST) toxins, as well as novel proteins such as EtpA and EatA. These antigens mediate adhesion to the intestinal epithelium and induce diarrheal disease. They are important targets for vaccine development, but antigenic heterogeneity necessitates multivalent approaches and the inclusion of conserved proteins to ensure broad protection.
- Other names
- ETEC Colonization FactorsETEC ToxinsCFA/ICS1-CS6Heat-labile toxin (LT)Heat-stable toxins (STh/STp)EtpA adhesinEatA mucinase/proteaseYghJ metalloproteaseEaeH adhesin
02
Mechanism of action
N/A
03
Biological functions
Adhesion to intestinal epitheliumFluid secretionDiarrheal inductionModulation of host environmentImmune evasionColonization
04
Disease associations
Infectious DiarrheaTraveler's Diarrhea
05
Safety considerations
Antigenic heterogeneityPotential for immune evasionNeed for multivalent vaccine approaches
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