Bacterial cell membrane and cell wall components of oral plaque bacteria

The bacterial cell membrane and cell wall components of oral plaque bacteria are essential structural elements that maintain the integrity and viability of the diverse microbial community inhabiting the oral cavity [1]. These components, including the peptidoglycan layer in Gram-positive bacteria and the outer membrane containing lipopolysaccharides in Gram-negative bacteria, serve as the primary interface between the bacteria and the host environment [2]. In the oral cavity, these structures facilitate the formation of complex biofilms (dental plaque) by mediating adhesion to the acquired pellicle on tooth surfaces and co-aggregation between different bacterial species [1]. These structural components are critical therapeutic targets for various antimicrobial agents used in oral care, such as chlorhexidine and cetylpyridinium chloride, which act by disrupting the lipid bilayer and increasing membrane permeability [3]. Failure to manage the accumulation and pathogenicity of these bacterial components leads to common oral diseases, including dental caries and periodontitis, and can contribute to systemic conditions like endocarditis [4]. Effective targeting requires agents that can penetrate the protective biofilm matrix to reach the underlying cell envelopes of pathogenic organisms [3]. Sources: [1] Marsh, P. D. (2006) BMC Oral Health; [2] Socransky, S. S., & Haffajee, A. D. (2005) Periodontology 2000; [3] McDonnell, G., & Russell, A. D. (1999) Clinical Microbiology Reviews; [4] NIH - National Institute of Dental and Craniofacial Research.

Other names

Oral bacterial cell envelopeDental plaque biofilm componentsBacterial cell wall and membrane (oral)Oral microbiota structural components

Disruption of cell membrane integrity, inhibition of peptidoglycan synthesis, precipitation of cytoplasmic proteins, and interference with bacterial adhesion and biofilm maturation.