Bacterial proteins and skin keratin

Bacterial proteins and skin keratin refers to the complex biochemical interaction between microbial surface components and the structural proteins of the human epidermis. This interaction is primarily mediated by bacterial adhesins, such as Microbial Surface Components Recognizing Adhesive Matrix Molecules (MSCRAMMs), which allow pathogens like Staphylococcus aureus to bind specifically to host keratins such as KRT1 and KRT10 (Source: PubMed, PMID: 24297486). This binding is a critical initial step in skin colonization, biofilm formation, and the pathogenesis of infections like impetigo and atopic dermatitis (Source: NIH, StatPearls). While the interaction itself is a subject of research for anti-adhesion therapies, it is not currently a single therapeutic target; instead, clinical treatment focuses on eradicating the bacteria using topical or systemic antibiotics. Drugs like mupirocin and retapamulin work by inhibiting bacterial growth, thereby preventing the exploitation of the skin's keratinous barrier (Source: PubChem). Therapeutic challenges include the rising prevalence of antibiotic-resistant strains and the risk of disrupting the protective skin microbiome. Understanding the molecular basis of how bacterial proteins degrade or adhere to keratin is essential for developing next-generation treatments for chronic and resistant skin diseases.

Other names

Bacterial-keratin interactionKeratin-binding bacterial adhesinsHost-pathogen skin protein interactionBacterial adhesion to keratinocytes

Antibacterial agents target bacterial viability and protein synthesis (e.g., mupirocin inhibits isoleucyl-tRNA synthetase) to prevent the expression of adhesins and the subsequent colonization of host keratin structures.