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Related Experiment Videos

Interleukin-10 production during septicaemia

A Marchant1, J Devière, B Byl

  • 1Department of Immunology, Hôpital Erasme, Université Libre de Bruxelles, Belgium.

Lancet (London, England)
|March 19, 1994
PubMed
Summary

Interleukin-10 (IL-10) is produced during sepsis and helps control the inflammatory response. This cytokine down-regulates tumor necrosis factor-alpha production, suggesting a role in managing endotoxemia.

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Area of Science:

  • Immunology
  • Infectious Diseases
  • Biochemistry

Background:

  • Bacterial lipopolysaccharide (LPS) triggers inflammatory responses, including tumor necrosis factor-alpha (TNF-α) production.
  • Interleukin-10 (IL-10) is a cytokine known to possess immunosuppressive properties.
  • Understanding cytokine dynamics during sepsis is crucial for developing effective treatments.

Purpose of the Study:

  • To investigate the production of IL-10 in human whole blood stimulated with LPS in an in-vitro model of endotoxemia.
  • To measure plasma IL-10 levels in patients with gram-negative and gram-positive septicemia and compare them to healthy controls.
  • To assess the correlation between IL-10 levels and the severity of sepsis, specifically septic shock.

Main Methods:

  • Incubation of human whole blood with bacterial lipopolysaccharide (LPS).

Related Experiment Videos

  • Quantification of plasma Interleukin-10 (IL-10) levels using [assay not specified].
  • Comparison of IL-10 levels between septic patients (with and without shock) and healthy volunteers.

    • Main Results:

    • IL-10 was produced in vitro upon LPS stimulation, down-regulating TNF-α production.
    • Elevated plasma IL-10 levels were detected in 57% of septic patients (gram-negative and gram-positive).
    • Septic shock patients exhibited significantly higher IL-10 levels (mean 58 pg/mL) compared to non-shock septic patients (mean 11 pg/mL, p < 0.001).
    • IL-10 was undetectable in most control patients and healthy volunteers.

    Conclusions:

    • Interleukin-10 is actively produced during human sepsis.
    • IL-10 may play a role in modulating the host's inflammatory response to bacterial products.
    • IL-10 levels correlate with sepsis severity, indicating potential as a biomarker.