Helicobacter pylori cell wall and membrane components

Helicobacter pylori cell wall and membrane components represent the complex structural envelope of the Gram-negative bacterium responsible for most cases of peptic ulcer disease and gastric cancer (Kusters et al., 2006). The cell wall consists of a thin peptidoglycan layer that maintains the helical shape and osmotic stability of the organism, while the outer membrane contains unique lipopolysaccharides and a variety of adhesins like BabA and SabA (Salama et al., 2013). These components are vital for the bacterium's ability to colonize the harsh, acidic gastric mucosa and evade the host's immune system. Clinically, the peptidoglycan layer is the primary target of beta-lactam antibiotics, such as amoxicillin, which interfere with cell wall synthesis and lead to bacterial lysis (StatPearls, 2023). Additionally, bismuth-based compounds exert antimicrobial effects by disrupting the integrity of the bacterial membrane and cell wall (PubChem, 2023). Understanding these components is essential for developing new therapeutic strategies to overcome the rising rates of antibiotic resistance associated with structural modifications in these targets.

Other names

Helicobacter pylori cell envelopeH. pylori peptidoglycanH. pylori outer membraneH. pylori surface antigens

Inhibition of peptidoglycan cross-linking via binding to penicillin-binding proteins (PBPs) (StatPearls, 2023); direct disruption of the bacterial cytoplasmic membrane and cell wall integrity by bismuth salts (PubMed, 2019).