Helicobacter pylori cell envelope and gastric proteins

Helicobacter pylori cell envelope and gastric proteins represent a complex group of antigenic targets associated with the pathogenesis of H. pylori infection (AdisInsight). This target set includes essential virulence factors such as Urease, which neutralizes gastric acid, and adhesins like BabA and SabA that facilitate bacterial attachment to the gastric mucosa (NCBI, 2022). Additionally, it encompasses secreted toxins like VacA and CagA, which are instrumental in inducing host cell damage and inflammation (StatPearls, 2023). Therapeutic strategies targeting these proteins, including oral immune globulins and experimental vaccines, aim to provide passive or active immunity to prevent bacterial colonization (PubMed, 2021). By neutralizing these cell envelope and secreted proteins, these treatments disrupt the bacterium's ability to survive and thrive within the hostile gastric environment (Wikipedia, 2024). This approach is primarily used to manage H. pylori infections and reduce the risk of associated conditions like chronic gastritis, peptic ulcers, and gastric adenocarcinoma (StatPearls, 2023). Clinical applications often involve bovine-derived antibodies that bind specifically to these bacterial antigens in the gut lumen (AdisInsight). Despite their potential, these therapies face challenges such as the acidic environment of the stomach and the need for high specificity to avoid affecting the normal gastric microbiota (PubMed, 2021).

Other names

Helicobacter pylori antigensH. pylori surface proteinsH. pylori virulence factorsH. pylori whole cell antigens

Passive immunization and neutralization of bacterial virulence factors and adhesion molecules