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Int Immunol. 1995 Jan;7(1):115-20.

Sharing of the IL-2 receptor gamma chain with the functional IL-9 receptor complex.

Author information

1
Department of Microbiology, Tohoku University School of Medicine, Sendai, Japan.

Abstract

The third subunit, the so-called common gamma (gamma c) chain, of the IL-2 receptor is shared among the receptors for IL-2, IL-4, IL-7 and IL-15, and dysfunction of the gamma c chain is thought to cause X-linked severe combined immunodeficiency (XSCID) ascribed to impairment of early T cell development. However, cytokines linked to XSCID are as yet unidentified. A mAb specific for the gamma c chain, TUGm2, profoundly inhibited cell proliferation in response to IL-9. Another mAb, TUGm3, immunoprecipitated [125I]IL-9 cross-linked with either the IL-9 receptor or the gamma c chain. These results demonstrate that the gamma c chain is included in the functional receptor complex for IL-9, which was initially characterized as a T cell growth factor and is essential for IL-9-dependent growth signal transduction.

PMID:
7718508
DOI:
10.1093/intimm/7.1.115
[Indexed for MEDLINE]

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