T cell receptor- and beta 1 integrin-mediated signals synergize to induce tyrosine phosphorylation of focal adhesion kinase (pp125FAK) in human T cells

T cell receptor- and beta 1 integrin-mediated signals synergize to induce tyrosine phosphorylation of focal adhesion kinase (pp125FAK) in human T cells
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T 细胞受体和 β1 整合素介导的信号协同诱导人类 T 细胞中粘着斑激酶 (pp125FAK) 的酪氨酸磷酸化

DOI:
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发表时间:
1995
影响因子:
15.3
通讯作者:
S. Hanks
S. Hanks
中科院分区:
医学1区
文献类型:
--
作者:
J. Maguire;Kristen M. Danahey;L. Burkly;G. Seventer;S. Hanks

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整合素的β 1亚家族被认为在T细胞的粘附/迁移和增殖/分化中起重要作用。β 1整联蛋白可通过极晚期抗原(VLA)4(VLA-4)(α 4 β 1)和VLA-5(α 5 β 1)与细胞外基质蛋白纤连蛋白(FN)的相互作用,或通过VLA-4与其细胞表面配体血管细胞粘附分子(VCAM)1的结合来提供T细胞共刺激。β 1整联蛋白成员介导T细胞共刺激信号的机制知之甚少。在非T细胞中的研究已经证明了酪氨酸粘着斑激酶pp 125 FAK通过β 1整联蛋白接合的调节,并且最近表明pp 125 FAK在将整联蛋白介导的信号转导与Ras途径连接中的作用(Sjuyer,M. D、和j.t. Parsons,1994,Curr. Opin. Cell. 6:705-710; Schlaepfer,D. D、S. K.汉克斯,T。Hunter,and P.货车der Geer. 1994.自然(伦敦),372:786-790)。虽然pp 125 FAK激酶存在于T细胞中,但没有关于其在该细胞类型中的调控的报道。本文描述的研究表征了T细胞受体(TCR)-CD 3抗原复合物和β 1整联蛋白对pp 125 FAK的新调节,并提供了在任何细胞类型中,整联蛋白α 4 β 1介导的pp 125 FAK酪氨酸磷酸化的第一个解释。我们证明了在同时(a)触发TCR-CD 3复合物和(B)α 4 β 1和α 5 β 1整联蛋白介导的这些细胞与固定化FN的结合或α 4 β 1整联蛋白介导的与固定化VCAM-1的结合后,Jurkat T细胞中人pp 125 FAK的酪氨酸磷酸化的快速和持续的协同增加。对正常外周血来源的CD 4+人T母细胞的研究证实了TCR-CD 3复合物介导的共刺激与FN或VCAM-1依赖性信号在诱导T细胞pp 125 FAK酪氨酸磷酸化中的协同作用。对从Jurkat细胞和正常CD 4 + T细胞分离的pp 125 FAK免疫沉淀物进行的体外激酶测定鉴定了一种共沉淀的57-kD酪氨酸磷酸化蛋白(pp 57),与pp 59 fyn或pp 56 lck不同。这些结果表明,第一次,一个特定的激酶,pp 125 FAK,在α 4 β 1-和α 5 β 1-介导的T细胞共刺激信号通路的参与。此外,这些数据证明了TCR-CD 3复合物对pp 125 FAK酪氨酸磷酸化的新调节。
The beta 1 subfamily of integrins is thought to play an important role in both the adhesion/migration and proliferation/differentiation of T cells. beta 1 integrins can provide T cell costimulation through interaction of very late antigen (VLA) 4 (VLA-4) (alpha 4 beta 1) and VLA-5 (alpha 5 beta 1) with the extracellular matrix protein fibronectin (FN), or by VLA-4 binding to its cell surface ligand, vascular cell adhesion molecule (VCAM) 1. The mechanism by which beta 1 integrin members transduce T cell-costimulatory signals is poorly understood. Studies in non-T cells have demonstrated regulation of the tyrosine focal adhesion kinase pp125FAK by beta 1 integrin engagement and, most recently, indicate a role for pp125FAK in linking integrin- mediated signal transduction to the Ras pathway (Schaller, M. D., and J. T. Parsons, 1994, Curr. Opin. Cell. Biol. 6: 705-710; Schlaepfer, D. D., S. K. Hanks, T. Hunter, and P. Van der Geer. 1994. Nature (Lond.), 372:786-790). Although pp125FAK kinase occurs in T cells, there are no reports on its regulation in this cell type. The studies described in this article characterize novel regulation of pp125FAK by the T cell receptor (TCR)-CD3 antigen complex and beta 1 integrins, and provide the first account, in any cell type, of integrin alpha 4 beta 1- mediated pp125FAK tyrosine phosphorylation. We demonstrate a rapid and sustained synergistic increase in tyrosine phosphorylation of human pp125FAK in Jurkat T cells after simultaneous (a) triggering of the TCR- CD3 complex, and (b) alpha 4 beta 1 and alpha 5 beta 1 integrin- mediated binding of these cells to immobilized FN or alpha 4 beta 1 integrin-mediated binding to immobilized VCAM-1. Studies with normal peripheral blood-derived CD4+ human T blasts confirm the synergistic action of a TCR-CD3 complex-mediated costimulus with a FN- or VCAM-1- dependent signal in the induction of T cell pp125FAK tyrosine phosphorylation. In vitro kinase assays performed on pp125FAK immunoprecipitates isolated from Jurkat cells and normal CD4+ T cells identified a coprecipitating 57-kD tyrosine-phosphorylated protein (pp57), distinct from pp59fyn or pp56lck. These results indicate, for the first time, the involvement of a specific kinase, pp125FAK, in alpha 4 beta 1- and alpha 5 beta 1-mediated T cell-costimulatory signaling pathways. In addition, the data demonstrate novel regulation of pp125FAK tyrosine phosphorylation by the TCR-CD3 complex.
DOI: --
发表时间: 1991
期刊: The American journal of pathology
影响因子: --
作者:
G. Rice;J. Munro;Christopher L. Corless;M. Bevilacqua
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不同但重叠的表位参与 α4β7 介导的血管细胞粘附分子 1、粘膜地址蛋白 1、纤连蛋白和淋巴细胞聚集的粘附。
DOI: --
发表时间: 1994
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Andrew,DP;Berlin,C;Honda,S;Yoshino,T;Hamann,A;Holzmann,B;Kilshaw,PJ;Butcher,EC
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DOI: 10.1073/pnas.91.9.3984
发表时间: 1994-04-26
影响因子: 11.1
作者:
SABE, H;HATA, A;HANAFUSA, H
通讯作者: HANAFUSA, H
DOI: --
发表时间: 1991
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
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DOI: 10.1073/pnas.91.21.10148
发表时间: 1994-10-11
影响因子: 11.1
作者:
CHEN, HC;GUAN, JL
通讯作者: GUAN, JL