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Prevention of Heat Stress Adverse Effects in Rats by Bacillus subtilis Strain
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Physical stress and bacterial colonization.

Michael Otto1

  • 1Pathogen Molecular Genetics Section, Laboratory of Human Bacterial Pathogenesis, National Institute of Allergy and Infectious Diseases, The National Institutes of Health, Bethesda, MD, USA.

FEMS Microbiology Reviews
|September 13, 2014
PubMed
Summary
This summary is machine-generated.

Bacteria use adhesion molecules like pili and surface proteins to attach to human epithelial cells. They also form biofilms to survive physical stresses during colonization.

Keywords:
Escherichia coliHelicobacter pyloriPseudomonas aeruginosaStaphylococcusStreptococcusadhesion

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Area of Science:

  • Microbiology
  • Cell Biology
  • Biophysics

Background:

  • Bacteria colonizing human epithelia face physical stresses like fluid flow and epithelial turnover.
  • Effective bacterial adhesion is crucial for colonization and requires specific molecular mechanisms.

Purpose of the Study:

  • To review the mechanisms bacteria employ to withstand physical stresses during epithelial colonization.
  • To focus on the role of bacterial adhesion in this process.

Main Methods:

  • Literature review of bacterial colonization and adhesion mechanisms.
  • Analysis of molecular strategies used by bacteria for attachment and survival.

Main Results:

  • Bacteria utilize fibrillar protrusions (pili) and surface-anchored proteins for firm attachment.
  • Some pathogens internalize epithelial cells or inhibit epithelial turnover for sustained association.
  • Biofilm formation provides additional protection against removal.

Conclusions:

  • Bacterial surface colonizers have evolved diverse strategies to overcome physical challenges.
  • Bacterial adhesion mechanisms are central to successful colonization and persistence on human epithelial surfaces.