Helicobacter pylori cell surface (H. pylori cell surface)

The Helicobacter pylori cell surface is a complex structural interface comprising the outer membrane, lipopolysaccharides (LPS), and a variety of surface-exposed proteins such as adhesins (e.g., BabA, SabA) and the enzyme urease (Kusters et al., 2006, Clinical Microbiology Reviews). This surface is essential for the bacterium's survival in the acidic gastric environment and its ability to colonize the human stomach by adhering to epithelial cells (PubMed: 11748182). As a therapeutic target, the cell surface is the primary site of action for beta-lactam antibiotics like amoxicillin, which inhibit cell wall synthesis, and bismuth-based compounds that disrupt bacterial membrane integrity (StatPearls: Helicobacter Pylori). Furthermore, surface antigens are the basis for non-invasive diagnostic tools, such as the H. pylori stool antigen test, and are the focus of vaccine research aimed at inducing protective immunity (CDC: Helicobacter pylori). Chronic interaction between the H. pylori cell surface and the host immune system leads to persistent inflammation, which is a major risk factor for peptic ulcers and gastric adenocarcinoma (NIH: Gastric Cancer). Understanding the molecular architecture of this surface is critical for addressing the global challenge of antibiotic resistance and developing targeted anti-adhesive therapies (PubMed: 30254144).

Other names

Helicobacter pylori outer membraneHelicobacter pylori cell wallHelicobacter pylori surface antigensHelicobacter pylori envelope

Inhibition of peptidoglycan synthesis in the cell wall, disruption of the bacterial outer membrane, and prevention of bacterial adhesion to the gastric mucosa.