Analysis of specificity for antigen, Mls, and allogeneic MHC by transfer of T-cell receptor α- and β-chain genes

Analysis of specificity for antigen, Mls, and allogeneic MHC by transfer of T-cell receptor α- and β-chain genes
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通过 T 细胞受体 α 和 β 链基因的转移分析抗原、Mls 和同种异体 MHC 的特异性

DOI:
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发表时间:
1988
期刊:
影响因子:
64.8
通讯作者:
S. Hedrick
S. Hedrick
中科院分区:
综合性期刊1区
文献类型:
--
作者:
J. Kaye;S. Hedrick

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大多数外周T淋巴细胞携带由二硫化物连接αβ二聚体1组成的细胞表面抗原受体。在免疫应答中,该受体赋予T细胞特异性,以识别与主要组织相容性复合体(MHC) 2-5中编码的细胞表面糖蛋白结合的外来抗原蛋白片段。在很高的频率下(约1%),相同的T淋巴细胞群体对同种异体MHC糖蛋白6 - 8,或与MHC10一起被称为Mls8、9的其他遗传位点的差异有反应。αβ抗原受体参与了同种异体反应活性11 - 13和Mls反应活性14 - 18。事实上,许多单克隆t细胞系可以识别与自身MHC分子结合的外源蛋白片段,此外,还可以识别异体MHC糖蛋白19 - 21,mls编码的决定因子22-24,或两者兼而有之。对于至少一种t细胞克隆,针对αβ抗原受体的单克隆抗体已被证明可以阻断抗原结合的自身mhc或同种异体MHC26诱导的活化。然而,单一αβ受体介导抗原特异性、同种异体反应性和Mls反应性仍有待证实,这是了解这些高频交叉反应的结构基础的先决条件。为了解决这个问题,我们将受体链基因从一个多反应性T细胞克隆转移到一个不相关的宿主T淋巴细胞中。我们现在明确地证明,编码单个αβ-受体链对的基因可以转移对与抗原片段、同种异体MHC分子和mls编码的决定因素(可能与MHC一起)复合物的自身MHC分子的识别。在这种情况下,抗原特异性和同种异体反应性的转移需要特定的αβ-受体链组合,而Mls反应性可以单独与β链基因一起转移到表达随机选择的α-链的受体中。
The majority of peripheral T lymphocytes bear cell-surface antigen receptors comprised of a disulphide-linked αβ dimer1. In an immune response, this receptor endows T cells with specificities for foreign antigenic protein fragments bound to cell surface glycoproteins encoded in the major histocompatibility complex (MHC)2–5. At a high frequency (>1%), the same population of T lymphocytes responds to allogeneic MHC glycoproteins6–8, or to differences at other genetic loci termed Mls8,9, in conjunction with MHC10. The αβ-antigen receptor has been implicated in alloreactivity11–13 and Mls reactivity14–18. In fact, many monoclonal T-cell lines recognize a foreign protein fragment bound to self-MHC molecules and, in addition, recognize allogeneic MHC glycoproteins19–21, an Mls-encoded determinant 22–24, or both25. For at least one T-cell clone, a monoclonal antibody directed against the αβ antigen receptor has been shown to block activation induced by either antigen-bound self-MHC or by allogeneic MHC26. However, it remains to be demonstrated directly that a single αβ receptor can mediate antigen specificity, alloreactivity and Mls reactivity, a prerequisite to understanding the structural basis of these high-frequency cross-reactivities. To address this issue we have performed transfers of receptor chain genes from a multiple-reactive T-cell clone into an unrelated host T lymphocyte. We now demonstrate definitively that the genes encoding a single αβ-receptor chain pair can transfer the recognition of self-MHC molecules complexed with fragments of antigen, allogeneic MHC molecules, and an Mls-encoded determinant (presumably in conjunction with MHC). In this case the transfer of antigen specificity and alloreactivity requires a specific αβ-receptor chain combination, whereas Mls reactivity can be transferred with the β-chain gene alone into a recipient expressing a randomly selected α-chain.
通过有限稀释分析对分泌 IL 2 的辅助 T 细胞进行计数,并证明每个响应细胞产生出乎意料的高水平 IL 2。
DOI: --
发表时间: 1982
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Miller,RA;Stutman,O
通讯作者: Stutman,O
DOI: --
发表时间: 1988
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Webb,SR;Okamoto,A;Sprent,J
通讯作者: Sprent,J
DOI: --
发表时间: 1985
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Katz,ME;JanewayJr,CA
通讯作者: JanewayJr,CA
DOI: --
发表时间: 1985
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
JanewayJr,CA;Katz,ME
通讯作者: Katz,ME
MIs 位点被 H-2 限制性流感病毒特异性细胞毒性 T 淋巴细胞克隆系识别。
DOI: --
发表时间: 1981
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Braciale,VL;Braciale,TJ
通讯作者: Braciale,TJ