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Distribution of secretory inhibitor of platelet microbicidal protein among urethral isolates with its correlation

Iuri B Ivanov1, Viktor A Gritsenko, Michael D Kuzmin

  • 1Department of Human Microbiology, Institute of Cellular and Intracellular Symbiosis, Russian Academy of Sciences, Volgogradskaya Street 36/3, Orenburg, Russia. ubi@mail.orb.ru

Asian Journal of Andrology
|December 22, 2007
PubMed
Abstract

Insights

Secretory inhibitor of platelet microbicidal protein (SIPMP) phenotypes were detected in urethral bacteria. Higher SIPMP levels were found in bacteria from chronic bacterial prostatitis (CBP) patients, suggesting an association with CBP pathogenesis.

Area of Science:

  • Microbiology
  • Urology
  • Immunology

Background:

  • Chronic bacterial prostatitis (CBP) is a challenging condition.
  • The role of bacterial virulence factors in CBP is not fully understood.
  • Platelet microbicidal proteins (PMPs) are key components of innate immunity.

Purpose of the Study:

  • To detect secretory inhibitor of platelet microbicidal protein (SIPMP) phenotypes in urethral bacterial isolates.
  • To compare SIPMP production in isolates from patients with and without CBP.
  • To explore the potential link between SIPMP and CBP pathogenesis.

Main Methods:

  • Urethral isolates including Staphylococcus spp., diphtheroids, micrococci, streptococci, Enterobacteriaceae, and Enterococcus faecalis were tested.
  • SIPMP production was assessed by measuring the inhibition of PMP bioactivity against Bacillus subtilis.
  • Results were quantified as the percentage of inhibition of PMP's bactericidal activity.

Main Results:

  • A significantly higher proportion of CBP-associated strains (57.78%) inhibited PMP activity compared to non-CBP strains (16.67%).
  • Staphylococci and Enterococcus faecalis isolates from CBP patients exhibited significantly higher SIPMP levels than controls.
  • These findings indicate a strong association between SIPMP production and CBP.

Conclusions:

  • SIPMP production by urethral bacteria is significantly associated with chronic bacterial prostatitis.
  • The detection of SIPMP phenotypes may offer insights into the pathogenesis of CBP.
  • Further research into SIPMP's role could inform novel therapeutic strategies for CBP.

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