PMID- 9199876 OWN - NLM STAT- MEDLINE DCOM- 19970822 LR - 20141120 IS - 1043-4666 (Print) IS - 1043-4666 (Linking) VI - 9 IP - 6 DP - 1997 Jun TI - T cell subsets and cytokines in allergic and non-allergic children. I. Analysis of IL-4, IFN-gamma and IL-13 mRNA expression and protein production. PG - 416-26 AB - Interleukin 4 (IL-4) and IL-13 are key cytokines inducing switching to immunoglobulin E (IgE), whereas interferon gamma (IFN-gamma) acts inhibitory on this process. We analysed whether differences existed in IL-4, IFN-gamma and IL-13 mRNA expression and protein production between T cells of children with allergic and non-allergic asthma, atopic dermatitis and health control children. IL-4 mRNA expression was increased in stimulated T cells of children with allergic asthma and atopic dermatitis, but not in those with non-allergic asthma as compared with healthy controls. Thus the increase in IL-4 expression can be considered as an underlying mechanism of the allergic disease process and not so much of the asthmatic state of the children. In unstimulated T cells of children with atopic dermatitis increased IFN-gamma mRNA expression with a reduced IFN-gamma protein production was found, indicating a post-translational defect in IFN-gamma. Differences in IL-13 expression between the groups were not significant, but IL-13 was significantly correlated with the height of the radio-allergo-sorbent test (RAST) class and with the severity scoring of atopic dermatitis (SCORAD) index. This indicates the clinical relevance of IL-13 for the degree of allergen-specific sensitization and severity of atopic dermatitis. In conclusion, the imbalance in IL-4 and IFN-gamma secretion in patients with atopic dermatitis may reflect general T cell activation in the presence of an intrinsic defect of IFN-gamma secretion. FAU - Koning, H AU - Koning H AD - Department of Paediatrics, Sophia Children's Hospital; Rotterdam, The Netherlands. FAU - Neijens, H J AU - Neijens HJ FAU - Baert, M R AU - Baert MR FAU - Oranje, A P AU - Oranje AP FAU - Savelkoul, H F AU - Savelkoul HF LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Cytokine JT - Cytokine JID - 9005353 RN - 0 (Cytokines) RN - 0 (DNA Primers) RN - 0 (Interleukin-13) RN - 0 (RNA, Messenger) RN - 207137-56-2 (Interleukin-4) RN - 37341-29-0 (Immunoglobulin E) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Asthma/genetics/immunology/metabolism MH - Base Sequence MH - Case-Control Studies MH - Child, Preschool MH - Cytokines/*biosynthesis/*genetics MH - DNA Primers/genetics MH - Dermatitis, Atopic/genetics/immunology/metabolism MH - Gene Expression MH - Humans MH - Hypersensitivity/*genetics/*immunology MH - Immunoglobulin E/biosynthesis/blood MH - In Vitro Techniques MH - Infant MH - Interferon-gamma/biosynthesis/genetics MH - Interleukin-13/biosynthesis/genetics MH - Interleukin-4/biosynthesis/genetics MH - Polymerase Chain Reaction MH - RNA, Messenger/genetics/metabolism MH - T-Lymphocyte Subsets/*immunology/metabolism EDAT- 1997/06/01 00:00 MHDA- 1997/06/01 00:01 CRDT- 1997/06/01 00:00 PHST- 1997/06/01 00:00 [pubmed] PHST- 1997/06/01 00:01 [medline] PHST- 1997/06/01 00:00 [entrez] AID - S1043-4666(96)90184-2 [pii] AID - 10.1006/cyto.1996.0184 [doi] PST - ppublish SO - Cytokine. 1997 Jun;9(6):416-26. doi: 10.1006/cyto.1996.0184.