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Introduce a novel post-biotic against Pseudomonas aeruginosa biofilm formation using Escherchia coli Nissle1917 outer

Maryam Alaei1, Fatemeh Aghakhani1, Sarvenaz Falsafi1

  • 1Department of Microbiology, Faculty of Advanced Science and Technology, Tehran Medical Science, Islamic Azad University, Tehran, Iran.

BMC Research Notes
|September 9, 2023
PubMed

Insights

Escherichia coli Nissle 1917 outer membrane vesicles (EcN OMVs) significantly reduce Pseudomonas aeruginosa biofilm formation by downregulating key genes. This finding highlights EcN OMVs as a promising therapeutic strategy against P. aeruginosa infections.

Area of Science:

  • Microbiology
  • Bacterial Pathogenesis
  • Biofilm Formation

Background:

  • Pseudomonas aeruginosa is an opportunistic pathogen causing acute and chronic infections.
  • Biofilm formation is crucial for P. aeruginosa pathogenesis and antimicrobial resistance.
  • Understanding gene regulation in biofilm formation is key to developing new therapies.

Discussion:

  • Escherichia coli Nissle 1917 outer membrane vesicles (EcN OMVs) were investigated for their impact on P. aeruginosa biofilm formation.
  • The expression of algD and PpyR genes, vital for biofilm development, was analyzed in P. aeruginosa clinical isolates.
  • EcN OMVs demonstrated a significant reduction in algD and PpyR gene expression compared to controls.

Key Insights:

  • EcN OMVs contain biomolecules that effectively modulate biofilm formation genes in P. aeruginosa.
  • Treatment with EcN OMVs led to a significant decrease in P. aeruginosa biofilm formation.
  • This study establishes a direct link between EcN OMVs and the inhibition of P. aeruginosa biofilm.

Outlook:

  • EcN OMVs show potential as a novel therapeutic strategy for combating P. aeruginosa biofilm-related infections.
  • Further research can explore the specific biomolecules within EcN OMVs responsible for inhibiting biofilm formation.
  • This approach could lead to new treatments for chronic and difficult-to-treat P. aeruginosa infections.
Keywords:
EcNOMVsPpyRPseudomonas aeruginosaalgD

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