Pharmaceutical strategies for the treatment of bacterial biofilms in chronic wounds

Drug Discov Today. 2022 Aug;27(8):2137-2150. doi: 10.1016/j.drudis.2022.04.020. Epub 2022 Apr 27.

Abstract

Biofilms are sessile communities of microorganisms, mainly bacteria, that grow on biotic and abiotic surfaces. These microorganisms are embedded within an extracellular polymeric substance that provides enhanced protection from antimicrobials. Chronic wounds provide an ideal habitat for biofilm formation. Bacteria can easily attach to wound debris and can infect the wound due to an impaired host immune response. This review highlights the mechanism of biofilm formation and the role of biofilms in the pathophysiology of chronic wounds. Our major focus is on various formulation strategies and delivery systems that are employed to eradicate or disperse biofilms, thereby effectively managing acute and chronic wounds. We also discuss clinical research that has studied or is studying the treatment of biofilm-infected chronic wounds.

Keywords: Antibiofilm agents; Antimicrobial resistance; Bacterial infections; Biofilms; Chronic wounds; Drug delivery systems; Nanomaterials.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents* / administration & dosage
  • Anti-Bacterial Agents* / therapeutic use
  • Bacteria / drug effects
  • Biofilms / drug effects
  • Drug Delivery Systems
  • Extracellular Polymeric Substance Matrix*
  • Humans
  • Wound Infection* / drug therapy
  • Wound Infection* / microbiology

Substances

  • Anti-Bacterial Agents