Production of interleukin-1 alpha and interleukin-2 by mononuclear cells from children with growth delay in relation to the degree of growth hormone deficiency: effects of substitutive treatment

Hormone Research
S CasanovaR M Schimpff

Abstract

Interleukin-1 alpha (IL-1 alpha) and interleukin-2 (IL-2) levels were measured by radioimmunoassay in samples of conditioned medium from mononuclear cells taken from 20 normal subjects (14 adults ranging in age from 20 to 45 years and 6 children ranging in age from 3 to 11 years) and from 49 children with growth delay. Cultures were performed with 10(6) cells/ml in medium containing 1% normal human serum and 4.8 g/l phytohemagglutinin M. The incubation was performed for 48 h in an atmosphere containing 5% CO2. In normal subjects, the production of IL-1 alpha was 38.5 +/- 9.8 fmol/ml of conditioned medium (mean +/- SEM) in 14 adults and 41.6 +/- 3.0 fmol/ml in 6 children. The production of IL-2 was 46.9 +/- 6.5 and 57.3 +/- 10.5 fmol/ml, respectively. In the 16 patients with growth hormone (GH) deficiency studied before treatment, the production of ILs was significantly decreased in relation to the degree of deficiency. We observed a positive correlation between the production of IL-1 alpha and the values of insulin-like growth factor I but not with serum GH values. IL-1 alpha production was normalized after 15 days of substitutive GH therapy and IL-2 was normalized after 3 months of therapy. In 10 other patients with GH deficie...Continue Reading

Citations

Jan 1, 1996·Pharmacology & Therapeutics·D A Weigent
Apr 1, 1993·Trends in Endocrinology and Metabolism : TEM·M C Gelato

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