Dispensability of Jak1 tyrosine kinase for interleukin‐2‐induced cell growth signaling in a human T cell line

Dispensability of Jak1 tyrosine kinase for interleukin‐2‐induced cell growth signaling in a human T cell line
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Jak1 酪氨酸激酶在人 T 细胞系中白细胞介素 2 诱导的细胞生长信号传导中的可替代性

DOI:
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发表时间:
1996
影响因子:
5.4
通讯作者:
K. Sugamura
K. Sugamura
中科院分区:
医学3区
文献类型:
--
作者:
M. Higuchi;H. Asao;N. Tanaka;Katsuhiko Oda;T. Takeshita;Masataka Nakamura;J. Van Snick;K. Sugamura

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酪氨酸激酶JAK1和JAK3与白细胞介素2受体(IL-2R)的β和γ链有关。它们通过IL-2、IL-4、IL-7、IL-9或IL-15的刺激被激活,这些受体共享IL-2R的γ链。我们已经获得了JAK1与IL-4、IL-7和IL-9受体的α链以及IL-2R的β链相关的直接证据,IL-2R也是IL-15R常见的。此外,我们还制备了突变的IL-2Rβ链,该突变发生在盒1区域,该突变在IL-2Rβ链和共享IL-2Rα链的其他细胞因子受体的γ链之间是保守的。利用带有突变β链的MOLT-4转染体,我们发现盒1区域内的两个保守的脯氨酸残基基本上与JAK1相关。突变β链缺失的MOLT-4细胞在激活JAK3和STAT5以及诱导细胞生长方面表现出对IL-2的反应性,表明JAK1对于IL-2介导的细胞生长信号是必不可少的,而JAK1的激活不是激活JAK3和STAT5所必需的。
The tyrosine kinases Jak1 and Jak3 are known to be associated with the β and γ chains of interleukin‐2 receptor (IL‐2R). They are activated by stimulation with IL‐2, IL‐4, IL‐7, IL‐9, or IL‐15, receptors of which share the γ chain of the IL‐2R. We have obtained direct evidence of Jak1 association with the α chains of receptors for IL‐4, IL‐7 and IL‐9 and with the β chain of IL‐2R, which is also common to the IL‐15R. Furthermore, we have prepared mutant IL‐2R β chains with a mutation in the box 1 region, which is conserved among the IL‐2R β chain and the α chains of the other cytokine receptors sharing the IL‐2R γ chain. Using MOLT‐4 transfectants with the mutant β chains, we found that two conserved proline residues within the box 1 region are essentially involved in association with Jak1. The MOLT‐4 transfectants with the mutant β chains lacking Jak1 association showed IL‐2 responsiveness, in terms of activation of Jak3 and Stat5 and induction of cell growth, indicating that Jak1 is dispensable for IL‐2‐mediated cell growth signaling and that Jak1 activation is not required for activation of Jak3 and Stat5 in the MOLT‐4 transfectants.
DOI: 10.1126/science.7973658
发表时间: 1994-11-11
期刊: SCIENCE
影响因子: 56.9
作者:
RUSSELL, SM;JOHNSTON, JA;LEONARD, WJ
通讯作者: LEONARD, WJ
DOI: --
发表时间: 1994
期刊: The Journal of biological chemistry
影响因子: --
作者:
Goldsmith,MA;Xu,W;Amaral,MC;Kuczek,ES;Greene,WC
通讯作者: Greene,WC
DOI: 10.1126/science.7973659
发表时间: 1994-11-11
期刊: SCIENCE
影响因子: 56.9
作者:
MIYAZAKI, T;KAWAHARA, A;TANIGUCHI, T
通讯作者: TANIGUCHI, T
白细胞介素 2 (IL-2) 受体 γ 链相关 Jak3 在 IL-2 诱导的 c-fos 和 c-myc(而非 bcl-2)基因诱导中发挥关键作用。
DOI: 10.1073/pnas.92.19.8724
发表时间: 1995
影响因子: 11.1
作者:
Kawahara,A;Minami,Y;Miyazaki,T;Ihle,JN;Taniguchi,T
通讯作者: Taniguchi,T