Bacterial cellular macromolecules of Cutibacterium acnes

Bacterial cellular macromolecules of Cutibacterium acnes and other skin bacteria refer to the collective group of essential biological polymers—including proteins, lipids, DNA, RNA, and peptidoglycans—that maintain the structural integrity and metabolic function of these microorganisms. Cutibacterium acnes is a predominant Gram-positive anaerobic bacterium of the human skin microbiome that plays a central role in the pathogenesis of acne vulgaris by promoting follicular hyperkeratosis and inducing pro-inflammatory cytokine release [1, 4]. In therapeutic contexts, these macromolecules are targeted to reduce bacterial colonization and associated inflammation. For example, benzoyl peroxide acts as a potent oxidizing agent that non-specifically destroys bacterial proteins and nucleic acids through the generation of reactive oxygen species [2, 3]. Other treatments, such as topical clindamycin or oral tetracyclines, target specific macromolecules like the bacterial ribosome to inhibit protein synthesis and arrest growth [3]. While effective for treating acne, the broad targeting of these macromolecules can lead to localized skin irritation or the emergence of resistant bacterial strains, necessitating careful clinical management.

Other names

Bacterial proteins of Cutibacterium acnesBacterial nucleic acids of skin floraCell wall components of C. acnesPropionibacterium acnes macromolecules

Non-specific oxidation of bacterial proteins and other cellular components via the release of free radical oxygen species; inhibition of bacterial protein synthesis by binding to ribosomal subunits (e.g., 50S or 30S).