Bacterial cell wall and cell-associated processes

The bacterial cell wall and its associated processes represent a critical system for bacterial survival, providing structural integrity and protection against osmotic lysis (NIH, 2024). This complex structure is primarily composed of peptidoglycan, a mesh-like polymer of sugars and amino acids that is unique to bacteria, making it an ideal target for selective toxicity in antimicrobial therapy (StatPearls, 2023). Therapeutic agents targeting these processes interfere with different stages of cell wall assembly, such as the cytoplasmic synthesis of precursors, their transport across the cytoplasmic membrane, and the final cross-linking of the peptidoglycan layer by penicillin-binding proteins (PBPs) (Frontiers in Microbiology, 2021). Disruption of these essential steps leads to a weakened cell wall, resulting in bacterial cell death, typically in a bactericidal manner. This target category includes several of the most widely used antibiotic classes, including beta-lactams (e.g., penicillins, cephalosporins) and glycopeptides (e.g., vancomycin), which are vital for treating a broad spectrum of Gram-positive and Gram-negative infections (MDPI, 2024). However, the effectiveness of these drugs is continually challenged by the development of resistance mechanisms, such as the production of beta-lactamases and the modification of target sites, necessitating the ongoing discovery of novel inhibitors within this pathway.

Other names

Peptidoglycan biosynthesisBacterial cell wall synthesisCell wall assemblyBacterial cell envelope biogenesisCell wall metabolism

Inhibition of peptidoglycan biosynthesis through various mechanisms, including the inhibition of transpeptidation by binding to penicillin-binding proteins (PBPs), sequestration of lipid-linked precursors such as Lipid II, and inhibition of early cytoplasmic enzymatic steps like MurA-F enzymes.