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Related Experiment Videos

Modulation of human polymorphonuclear neutrophil function by macrolides: preliminary data concerning dirithromycin

M T Labro1, J el Benna, H Abdelghaffar

  • 1Inserm U. 294, Laboratoire d'Immunologie et d'Hématologie CHU X. Bichat, Paris, France.

The Journal of Antimicrobial Chemotherapy
|March 1, 1993
PubMed
Summary

Macrolide antibiotics impact neutrophil function, including the oxidative burst, which is crucial for fighting infections. This review examines how macrolides affect neutrophils and discusses preliminary data on dirithromycin and erythromycylamine.

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Area of Science:

  • Immunology
  • Pharmacology
  • Microbiology

Background:

  • Polymorphonuclear neutrophils (PMN) are key in host defense against pathogens.
  • The neutrophil oxidative burst produces reactive oxygen species for bacterial killing but can cause tissue damage.
  • Macrolides concentrate in phagocytes, potentially altering cellular functions.

Purpose of the Study:

  • To review macrolide effects on neutrophil function.
  • To discuss macrolide-induced changes in phagocytic activities.
  • To present preliminary data on dirithromycin and erythromycylamine's impact on the neutrophil oxidative burst.

Main Methods:

  • Literature review of published data on macrolides and neutrophil function.
  • In-vitro and ex-vivo experimental data analysis.

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  • Discussion of preliminary in-vitro modulation of the neutrophil oxidative burst.

    • Main Results:

    • Macrolides are known to affect various phagocytic functions.
    • Intracellular accumulation of macrolides may lead to compartment alkalinization, impacting cell function.
    • Preliminary data suggest dirithromycin and erythromycylamine modulate the neutrophil oxidative burst.

    Conclusions:

    • Macrolides can modulate neutrophil function, with implications for treating intracellular pathogens.
    • Understanding these effects is crucial for optimizing antibiotic therapy and minimizing host damage.
    • Further research on specific macrolides like dirithromycin is warranted.