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Signalling or binding: the role of the platelet-activating factor receptor in invasive pneumococcal disease

Federico Iovino1, Matthijs C Brouwer, Diederik van de Beek

  • 1Department of Medical Microbiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.

Cellular Microbiology
|March 1, 2013
PubMed

Insights

Streptococcus pneumoniae uses the platelet-activating factor receptor (PAFR) to invade host cells, causing invasive pneumococcal disease. Understanding PAFR

Area of Science:

  • Microbiology
  • Immunology
  • Pathogenesis

Background:

  • Streptococcus pneumoniae (pneumococcus) is a major cause of invasive diseases like pneumonia, bacteremia, and meningitis.
  • Host cell receptors mediate bacterial interaction, influencing disease development.
  • The platelet-activating factor receptor (PAFR) is implicated in pneumococcal adhesion, invasion, and translocation.

Purpose of the Study:

  • To review current literature on the role of PAFR in invasive pneumococcal disease (IPD).
  • To evaluate the evidence for direct interaction between S. pneumoniae and PAFR.
  • To explore the impact of human PAFR genetic variations on IPD outcomes.

Main Methods:

  • Literature review of studies on PAFR, S. pneumoniae, and other pathogens.
  • Analysis of existing biochemical and genetic data.
  • Discussion of clinical aspects related to IPD and PAFR.

Main Results:

  • Conflicting data exists regarding the direct role of PAFR in S. pneumoniae infection.
  • PAFR's involvement in pneumococcal adhesion, invasion, and endothelial cell transcytosis is proposed but lacks robust biochemical support.
  • Human PAFR genetic variations may correlate with IPD clinical manifestations.

Conclusions:

  • Further research is needed to clarify the precise role of PAFR in invasive pneumococcal disease.
  • Understanding PAFR's function could lead to new therapeutic strategies targeting pneumococcal infections.
  • Investigating PAFR-pathogen interactions is crucial for developing novel treatments.

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