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Implications of interspecies signaling for virulence of bacterial and fungal pathogens

Lucy J Holcombe1, Fergal O'Gara, John P Morrissey

  • 1Microbiology Department, University College Cork, Cork, Ireland.

Future Microbiology
|July 30, 2011
PubMed

Insights

Pathogenic bacteria and fungi communicate, impacting virulence in polymicrobial infections. Understanding interspecies signaling is crucial for developing new treatments against these resilient microbes.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Pathogenesis

Background:

  • Pathogenic bacteria and fungi pose significant threats, particularly to vulnerable populations in hospital settings.
  • Many infections, including those on medical devices and in chronic conditions like cystic fibrosis, are polymicrobial.
  • Understanding microbial interactions is vital for disease management and intervention strategies.

Purpose of the Study:

  • To investigate interspecies signaling between bacterial and fungal pathogens.
  • To examine how microbial communication influences the expression of virulence traits in mixed infections.

Main Methods:

  • Review of current evidence on microbial communication in polymicrobial infections.
  • Analysis of known signaling pathways and their cross-species perception.
  • Examination of virulence factor expression in response to interspecies signals.

Main Results:

  • Microbes can perceive signals intended for other species, influencing their behavior.
  • Interspecies signaling affects the coordinated expression of virulence factors.
  • This communication network plays a role in the pathogenesis of polymicrobial infections.

Conclusions:

  • Interspecies signaling is a key factor in the complex dynamics of polymicrobial infections.
  • Targeting these communication pathways could offer novel therapeutic strategies.
  • Further research into microbial crosstalk is essential for combating infectious diseases.

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