Polymicrobial interaction in biofilm: mechanistic insights

Anmol Kulshrestha1, Pratima Gupta1

  • 1Department of Biotechnology, National Institute of Technology, Raipur, Chhattisgarh, India.

Pathogens and Disease
|April 28, 2022
PubMed

Insights

Polymicrobial biofilms (PMBFs) are a major global health threat, complicating infections by multiple species. Understanding PMBF formation mechanisms is crucial for developing effective antimicrobial treatments against these resilient structures.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Biotechnology

Background:

  • Polymicrobial biofilm (PMBF) formation is a significant challenge in multispecies infections, affecting over 65% of infections according to the CDC.
  • Many chronic illnesses, including cystic fibrosis, otitis media, and dental caries, involve coaggregation of multiple microbial species, leading to PMBF development.
  • PMBFs pose a substantial global health burden, particularly in bacterio-fungal and interspecies bacterial diseases during chronic illness.

Purpose of the Study:

  • To review the formation mechanisms and significance of polymicrobial biofilms (PMBFs).
  • To explore the interactions between causative microbes within PMBFs.
  • To understand how these interactions contribute to treatment recalcitrance and identify targets for antimicrobial research.

Main Methods:

  • Literature review focusing on polymicrobial biofilm formation.
  • Analysis of microbial interactions and coaggregation in various disease contexts.
  • Examination of factors contributing to biofilm recalcitrance.

Main Results:

  • PMBFs are prevalent in numerous chronic and multispecies infections, increasing disease severity and treatment difficulty.
  • Interactions between different microbial species are key to PMBF structure and resilience.
  • The complex nature of PMBFs makes them significantly more resistant to antimicrobial therapies compared to single-species biofilms.

Conclusions:

  • Understanding the mechanistic processes and specific molecular interactions driving PMBF formation is essential.
  • This knowledge is critical for developing novel antimicrobial strategies targeting polymicrobial infections.
  • Further research into PMBFs will aid in combating treatment-resistant infections and reducing global health burdens.