Control of T Cell Development In Vivo by Subdomains Within the IL-7 Receptor α-Chain Cytoplasmic Tail1
Control of T Cell Development In Vivo by Subdomains Within the IL-7 Receptor α-Chain Cytoplasmic Tail1
复制标题
IL-7 受体 α 链胞质 Tail1 内的子结构域对体内 T 细胞发育的控制
作者:
B. O. Porter;P. Scibelli;T. Malek
IL-7/IL-7R signaling functions in both growth and differentiation during T cell development. In this study, we examined the extent these activities were controlled by signaling associated with distinct IL-7Rα cytoplasmic domains by transgenic expression of wild-type or cytoplasmic deletion mutants of IL-7Rα in the thymi of IL-7Rα−/− mice. We show an essential requirement for the tyrosine-containing carboxyl-terminal T domain in restoring thymic cellularity, pro-/pre-T cell progression, and survival. In contrast, the functional differentiation of TCR αβ cells and the development of TCR γδ cells are partially independent of the T domain. Thus, separate cytoplasmic domains of the IL-7Rα chain differentially control distinct functions during T cell development, whereas normal IL-7R-dependent thymic development requires the integrated activity of all these domains.
DOI:
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发表时间:
1995
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
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作者:
Olszowy,MW;Leuchtmann,PL;Veillette,A;Shaw,AS
通讯作者:
Shaw,AS
影响因子:
56.9
作者:
MIYAZAKI, T;KAWAHARA, A;TANIGUCHI, T
通讯作者:
TANIGUCHI, T
DOI:
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发表时间:
1997
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
He,YW;Nakajima,H;Leonard,WJ;Adkins,B;Malek,TR
通讯作者:
Malek,TR