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Ontogeny of T‐helper 1 and T‐helper 2 cytokine production in childhood
Author(s) -
Smart Joanne M.,
Kemp Andrew S.
Publication year - 2001
Publication title -
pediatric allergy and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.269
H-Index - 89
eISSN - 1399-3038
pISSN - 0905-6157
DOI - 10.1034/j.1399-3038.2001.012004181.x
Subject(s) - cytokine , immunology , medicine , superantigen , immune system , atopy , t helper cell , allergy , interleukin 4 , interleukin 10 , t cell
Compared to adults, infants and young children demonstrate differences in their immune response, indicating that there is maturation or change over time and it is probable that this may be reflected in cytokine production. Cytokine responses have been demonstrated to be different in atopic and non‐atopic individuals. In this study, we examined T‐helper 1 (Th1) (interferon‐γ[IFN‐γ]) and T‐helper 2 (Th2) (interleukin [IL]‐4, IL‐5, and IL‐13) cytokine release from atopic and non‐atopic children in response to the staphylococcal superantigen, staphylococcal enterotoxin B (SEB). In non‐atopic and atopic children, IFN‐γ, IL‐4, and IL‐5 release was significantly related to age. Non‐atopic children younger than 2 years of age were found to have significantly reduced Th2 (IL‐4, IL‐5, and IL‐13) responses when compared with older, non‐atopic children. Atopic children had a reduced IFN‐γ response when compared with non‐atopics in early childhood; however, the decreased IFN‐γ response seen in early childhood did not persist after 10 years. These age‐related changes in cytokine production provide further support for the concept that cytokine deviations may determine the natural history of atopic disease during early childhood. In addition, the present study indicates the necessity of age‐matched controls when examining children for both Th1 (IFN‐γ) and Th2 (IL‐4) cytokine release.