Propionibacterium acnes and Staphylococcus aureus

Propionibacterium acnes (recently reclassified as Cutibacterium acnes) and Staphylococcus aureus are Gram-positive bacteria that serve as primary pathogens in various dermatological and systemic infections. C. acnes is a commensal of the human skin that plays a central role in the pathogenesis of acne vulgaris by inducing the release of pro-inflammatory cytokines and altering sebum composition (Scholz & Kilian, 2016). Staphylococcus aureus is a more aggressive pathogen associated with a wide spectrum of diseases, including skin abscesses, pneumonia, and endocarditis, often characterized by its ability to form biofilms and produce virulence factors (Tong et al., 2015). These organisms are not individual molecular targets; rather, they are the biological entities that antibacterial drugs aim to eradicate or inhibit. Pharmacological intervention typically involves antibiotics like clindamycin or doxycycline, which target the bacterial 50S or 30S ribosomal subunits to arrest protein synthesis (Kohanski et al., 2010). The clinical management of these bacteria is increasingly complicated by the rise of antibiotic resistance, such as Methicillin-resistant S. aureus (MRSA), necessitating the development of narrow-spectrum agents or alternative therapies.

Other names

Cutibacterium acnesC. acnesStaphylococcus aureusS. aureusStaph aureus

Drugs targeting these bacteria typically act by inhibiting protein synthesis via the 30S or 50S ribosomal subunits, disrupting cell wall synthesis, or inducing oxidative stress to damage bacterial membranes and DNA.