Biofilms in skin infections: Propionibacterium acnes and acne vulgaris

T Coenye1, K Honraet, B Rossel

  • 1Laboratory for Pharmaceutical Microbiology, Ghent University, Ghent, Belgium, Oystershell NV, Drongen, Belgium. Tom.Coenye@UGent.be

Insights

Propionibacterium acnes (P. acnes) may form biofilms in acne vulgaris, leading to increased resistance against antimicrobial treatments. This biofilm formation is suggested by P. acnes

Area of Science:

  • Microbiology
  • Dermatology
  • Infectious Diseases

Background:

  • Many human infections involve biofilms, where sessile cells exhibit high antimicrobial resistance.
  • Propionibacterium acnes (P. acnes) is implicated in acne vulgaris pathogenesis.
  • P. acnes is suspected to form biofilms within pilosebaceous follicles.

Purpose of the Study:

  • To explore the potential for P. acnes biofilm formation in acne vulgaris.
  • To understand the implications of P. acnes biofilm resistance.

Main Methods:

  • Review of existing literature on P. acnes biofilm formation.
  • Analysis of P. acnes behavior in vitro and in vivo.
  • Comparison with biofilm formation in other skin pathogens.

Main Results:

  • P. acnes readily forms biofilms in vitro and on medical devices in vivo.
  • Sessile P. acnes cells show increased resistance and virulence factor production.
  • Biofilm formation is also observed for Staphylococcus aureus and Streptococcus pyogenes.

Conclusions:

  • Evidence suggests P. acnes forms biofilms in acne vulgaris, contributing to treatment resistance.
  • Understanding P. acnes biofilms is crucial for developing effective acne therapies.
  • Biofilm formation is a common mechanism in various skin infections.

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