Helicobacter pylori cell wall, membrane components, and thiol-containing enzymes

The Helicobacter pylori cell wall, membrane components, and thiol-containing enzymes represent a collective set of therapeutic targets essential for the survival and virulence of the H. pylori bacterium (StatPearls, 2023). The cell wall and outer membrane provide structural integrity and facilitate the pathogen's adherence to the gastric mucosa, which is a prerequisite for colonization and infection (PubMed, PMC7071280). Thiol-containing enzymes, such as urease and various oxidoreductases, are critical for the bacterium's ability to neutralize gastric acid and maintain redox homeostasis in a hostile environment (NIH, 2022). Drugs targeting these components, primarily bismuth-based compounds like bismuth subsalicylate, work by binding to the sulfhydryl groups of essential enzymes, leading to their irreversible inactivation (PubChem, CID 16682733). Additionally, these agents cause physical disruption of the bacterial cell wall and plasma membrane, resulting in increased permeability and eventual cell lysis (Journal of Clinical Medicine, 2020). This multi-targeted approach is highly effective in eradicating H. pylori, thereby treating associated conditions such as chronic gastritis and peptic ulcers, and reducing the long-term risk of gastric adenocarcinoma (PubMed, 32575583).

Other names

H. pylori cellular targetsBismuth-sensitive H. pylori componentsHelicobacter pylori cell envelope and enzymes

Inhibition of thiol-dependent enzymes and physical disruption of the bacterial cell wall and membrane