Helicobacter pylori cell wall integrity

Helicobacter pylori cell wall integrity refers not to a single molecular target, but to the collective set of molecular structures (peptidoglycan, outer membrane, associated proteins and lipopolysaccharide) and their maintenance mechanisms that allow H. pylori to preserve its characteristic helical shape, withstand acidic gastric environments, and resist host defenses. The cell wall is composed of a Gram-negative envelope, including an outer membrane (rich in lipopolysaccharide), a thin peptidoglycan layer, and various outer membrane proteins[4][5]. Key components involved in maintaining cell wall and membrane integrity include cholesteryl glucosides, lipopolysaccharide (LPS), and a network of proteins such as Csd1, Csd3, Csd5, Csd7, and the bactofilin CcmA, which together regulate cell shape and strength[1][2][4]. Disruption of these structures, either genetically or pharmacologically, leads to increased permeability, loss of typical helical morphology, decreased colonization ability, and heightened susceptibility to antibiotics and host defenses[1][4][5]. As such, the cell wall/membrane integrity machinery represents a validated therapeutic target, especially for eradication of H. pylori infection. However, it is not a precisely defined molecular entity, making it a non-canonical, aggregate target rather than a single receptor or enzyme; this should be carefully considered in structured target listings. Note: - This entry is not a single molecule or protein but a functional/structural system. For more precise targeting, individual components (e.g., peptidoglycan biosynthesis enzymes, LPS, outer membrane proteins) should be specified for structured database purposes[2][5]. - If searching for canonical, single therapeutic targets, mapping to known cell wall biosynthesis or membrane proteins (e.g., specific penicillin-binding proteins, LPS core biosynthetic enzymes, Csd proteins) is preferred.

Other names

H. pylori envelope integrityH. pylori cell envelopeH. pylori membrane integrity

Inhibition of cell wall synthesis (e.g., via peptidoglycan-targeting antibiotics) Disruption of membrane integrity (e.g., ceragenins, bismuth, detergents) Increased permeability to other agents by modifying the cell wall/membrane structure