Cloning of the murine thymic stromal lymphopoietin (TSLP) receptor: Formation of a functional heteromeric complex requires interleukin 7 receptor.

Cloning of the murine thymic stromal lymphopoietin (TSLP) receptor: Formation of a functional heteromeric complex requires interleukin 7 receptor.
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DOI:
10.1084/jem.192.5.659
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发表时间:
2000-09-04
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Sims JE
Sims JE
中科院分区:
其他
文献类型:
--
作者:
Park LS;Martin U;Garka K;Gliniak B;Di Santo JP;Muller W;Largaespada DA;Copeland NG;Jenkins NA;Farr AG;Ziegler SF;Morrissey PJ;Paxton R;Sims JE

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通过放射性配体结合,在多种小鼠而非人骨髓单核细胞系中检测到小鼠胸腺基质淋巴细胞生成素 (TSLP) 的细胞受体。从鼠T辅助细胞cDNA文库中分离出编码该受体的cDNA克隆。 TSLP 受体 (TSLPR) 是造血素受体家族的成员。 TSLPR cDNA 的转染仅导致低亲和力结合。白细胞介素 7 (IL-7)Rα 链 cDNA 的共转染导致转化为高亲和力结合。 TSLP没有激活IL-7Rα−/−小鼠的细胞,但激活了γc−/−小鼠的细胞。因此,功能性 TSLPR 需要 IL-7Rα 链,而不是 γc 链来进行信号传导。
The cellular receptor for murine thymic stromal lymphopoietin (TSLP) was detected in a variety of murine, but not human myelomonocytic cell lines by radioligand binding. cDNA clones encoding the receptor were isolated from a murine T helper cell cDNA library. TSLP receptor (TSLPR) is a member of the hematopoietin receptor family. Transfection of TSLPR cDNA resulted in only low affinity binding. Cotransfection of the interleukin 7 (IL-7)Rα chain cDNA resulted in conversion to high affinity binding. TSLP did not activate cells from IL-7Rα−/− mice, but did activate cells from γc−/− mice. Thus, the functional TSLPR requires the IL-7Rα chain, but not the γc chain for signaling.
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发表时间: 1981-01-01
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