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Pathogenic arsenal of Pseudomonas aeruginosa: an update on virulence factors

Vimal V Veetilvalappil1, Atulya Manuel2, Jesil M Aranjani1

  • 1Department of Pharmaceutical Biotechnology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, India.

Future Microbiology
|March 15, 2022
PubMed

Insights

Pseudomonas aeruginosa poses a threat in persistent infections due to its virulence factors. Understanding these factors and their regulation is crucial for effective clinical management.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Bacterial Pathogenesis

Background:

  • Pseudomonas aeruginosa is a significant opportunistic pathogen.
  • It causes persistent infections due to numerous virulence factors.
  • Understanding these factors is key to combating infections.

Purpose of the Study:

  • To review the diverse virulence factors of Pseudomonas aeruginosa.
  • To explore the regulatory systems governing virulence factor expression.
  • To highlight the dynamic and evolving nature of bacterial virulence.

Main Methods:

  • Literature review of established and emerging virulence factors.
  • Analysis of regulatory mechanisms, including quorum sensing.
  • Examination of virulence in hypervirulent strains.

Main Results:

  • Identified cell-associated factors (flagella, pili, adhesins) and extracellular factors.
  • Detailed the critical role of quorum-sensing systems in regulating virulence.
  • Showcased novel virulence factors in hypervirulent strains, indicating evolving pathogenicity.

Conclusions:

  • Pseudomonas aeruginosa employs a wide array of virulence factors for infection.
  • Quorum sensing is a central regulator of these factors.
  • The dynamic evolution of virulence necessitates ongoing research for improved clinical strategies.
Keywords:
Pseudomonas aeruginosadrug effluxmultidrug resistancequorum sensingsecretion systemtwo-component systemsvirulence factors

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