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Vancomycin blocks autophagy and induces interleukin-1β release in macrophages

Young Eun Ha1, Kyoung-Hye Kong2, Mi-Hyang Cho2

  • 1Samsung Medical Center, Department of Infectious Diseases, Sungkyunkwan University School of Medicine, Seoul, Korea.

The Journal of Antibiotics
|August 21, 2014
PubMed

Insights

Vancomycin, an antibiotic, blocks autophagy and worsens inflammation in macrophages. This suggests cautious use of vancomycin to prevent systemic inflammatory response syndrome (SIRS) during sepsis.

Area of Science:

  • Immunology
  • Cell Biology
  • Pharmacology

Background:

  • Systemic inflammatory response syndrome (SIRS) involves exaggerated immune responses and can lead to organ failure.
  • Autophagy is a critical cellular process regulating inflammatory responses in macrophages.
  • Vancomycin is a widely used antibiotic for sepsis and post-surgery, but its effect on autophagy and inflammation is unknown.

Purpose of the Study:

  • To investigate the impact of vancomycin on autophagy and inflammatory responses in macrophages.
  • To explore the potential role of vancomycin in modulating SIRS.

Main Methods:

  • Macrophage cell lines were treated with vancomycin and lipopolysaccharides.
  • Autophagy levels and inflammatory markers were assessed.

Main Results:

  • Vancomycin was found to inhibit autophagy in macrophages.
  • Vancomycin treatment led to increased inflammatory responses.
  • This suggests a potential exacerbation of SIRS.

Conclusions:

  • Vancomycin interferes with autophagy, a key regulator of inflammation.
  • This interference may contribute to increased inflammatory responses, potentially worsening SIRS.
  • Cautious administration of vancomycin is recommended in sepsis patients to mitigate adverse inflammatory effects.

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