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Related Experiment Videos

Tumor necrosis factor-alpha in malignant disease

J Abrahamsson1, B Carlsson, L Mellander

  • 1Department of Pediatrics I, University of Göteborg, Sweden.

The American Journal of Pediatric Hematology/Oncology
|November 1, 1993
PubMed
Summary
This summary is machine-generated.

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Serum tumor necrosis factor-alpha (TNF alpha) levels are elevated in children with malignant diseases like leukemia and solid tumors. This elevation is linked to the disease itself, not infection or other cytokines.

Area of Science:

  • Immunology
  • Pediatric Oncology

Background:

  • Tumor necrosis factor-alpha (TNF alpha) plays a crucial role in immunoregulation.
  • Understanding cytokine profiles in pediatric malignancies is vital for assessing disease impact.

Purpose of the Study:

  • To investigate serum levels of TNF alpha in children with newly diagnosed, untreated malignant diseases.
  • To correlate TNF alpha levels with the presence of infection and other key cytokines (IL-1 beta, IL-2, IFN-gamma).

Main Methods:

  • Serum samples were collected from children with newly diagnosed leukemia, solid tumors, and healthy controls.
  • Highly sensitive radioimmunoassays were used for quantifying TNF alpha, IL-1 beta, IL-2, and IFN-gamma.
  • Statistical analysis was performed to compare cytokine levels and assess correlations.

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Main Results:

  • Children with leukemia exhibited significantly higher mean TNF alpha levels (63.6 pg/ml) compared to those with solid tumors (21.5 pg/ml) and controls (10.5 pg/ml).
  • No significant correlation was found between TNF alpha levels and the presence of infection.
  • TNF alpha levels did not correlate with the serum concentrations of interleukin-1 beta, interleukin-2, or interferon-gamma.

Conclusions:

  • Elevated serum TNF alpha levels are common in children with malignant diseases.
  • The observed elevation in TNF alpha appears to be a consequence of the malignant disease process.
  • This elevation may reflect either the host's immune response or direct production by tumor cells.