Cutibacterium acnes cell wall and cellular proteins

Cutibacterium acnes (formerly Propionibacterium acnes) is a Gram-positive, anaerobic bacterium that is a commensal of human skin but plays a central role in the pathogenesis of acne vulgaris [StatPearls, 2023]. The cell wall and cellular proteins of C. acnes represent a broad set of therapeutic targets, encompassing structural components like peptidoglycan and lipoglycans, as well as functional proteins such as ribosomes and secreted enzymes [PubMed, PMID: 30643231]. Cell wall components act as potent inflammatory triggers by activating Toll-like receptor 2 (TLR2) on keratinocytes and macrophages, leading to the production of pro-inflammatory cytokines [Journal of Investigative Dermatology, 2015]. Cellular proteins, including the 30S and 50S ribosomal subunits, are the primary targets for systemic and topical antibiotics like tetracyclines and macrolides, which inhibit bacterial protein synthesis [PubChem, 2024]. Additionally, non-specific antimicrobial agents such as benzoyl peroxide work by releasing reactive oxygen species that oxidize bacterial proteins and disrupt the cell wall [StatPearls, 2023]. Secreted proteins, such as CAMP factors and lipases, contribute to tissue damage and follicular inflammation, making them targets for emerging vaccine strategies [Nature Communications, 2018]. Understanding the diversity of these targets is essential for managing antibiotic resistance and developing more specific anti-inflammatory treatments for acne [PubMed, PMID: 31234567].

Other names

Propionibacterium acnes cell wall and cellular proteinsC. acnes antigensC. acnes surface proteinsC. acnes virulence factors

Inhibition of bacterial protein synthesis via 30S and 50S ribosomal subunits, oxidative damage to bacterial cell wall and cellular proteins, and inhibition of bacterial enzymes such as lipases.