Delineation of human thymocytes with or without functional potential by CD1-specific antibodies.

Delineation of human thymocytes with or without functional potential by CD1-specific antibodies.
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通过 CD1 特异性抗体描绘具有或不具有功能潜力的人类胸腺细胞。

DOI:
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发表时间:
1989
影响因子:
4.4
通讯作者:
C. Martínez
C. Martínez
中科院分区:
医学3区
文献类型:
--
作者:
A. de la Hera;M. Toribio;C. Martínez

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缺乏 T 细胞抗原受体 (TCR-CD3-) 和 CD4 和 CD8 表面标记(即双阴性胸腺细胞)的造血前体细胞产生功能成熟的 T 淋巴细胞。然而,尽管它们获得了 TCR-CD3 和 CD4-CD8,但它们的主要后代是免疫无反应的胸腺细胞。因为只有成熟的胸腺细胞才会迁移到外周淋巴器官,而大多数胸腺细胞会在原位死亡,因此了解双阴性胸腺细胞后代中与功能成熟相关的事件是 T 细胞发育中的一个基本问题。我们推断,追踪早期人类胸腺细胞命运的线索可能来自对 CD1 抗原的发育获得的研究,该抗原目前用于更好地定义功能惰性 CD4+8+(双阳性)阶段,并且在成熟的髓质胸腺细胞和外周 T 细胞中不存在。通过使用 CD1 (HTA 1/T6) 特异性抗体,我们在此表明​​大部分双阴性胸腺细胞也表达 CD1。 CD1+3-、CD1+3+、CD1-3+ 和 CD1-3- 子集均存在。 CD1+3- 子集产生 CD1+ 双阳性细胞的 CD1+3-4-8+ 前体。 CD1+3+ 子集的很大一部分含有 TCR gamma delta-CD3 复合物。 CD1-亚群在功能测定中具有反应性,其中可以刺激它们使用白细胞介素2增殖途径并介导细胞毒性。相反,所有 CD1+ 胸腺细胞都表现为功能惰性细胞。因此,CD1表面标记描绘了人类胸腺细胞前体及其产物,它们在αβ和γδ谱系上缺乏或具有体外功能潜力。
Hematopoietic precursors lacking T cell antigen receptors (TCR-CD3-) and CD4 and CD8 surface markers (i.e. double-negative thymocytes) give rise to functionally mature T lymphocytes. Yet their major progeny are immunologically unresponsive thymocytes in spite of having acquired TCR-CD3 and CD4-CD8. Because only mature thymocytes migrate to peripheral lymphoid organs and most thymocytes die in situ, the knowledge of the events associated with functional maturation in the double-negative thymocyte progeny is a fundamental question in T cell development. We reasoned that a clue to trace the fate of early human thymocytes may perhaps come from the study of the developmental acquisition of CD1 antigen, currently used to define better the functionally inert CD4+8+ (double-positive) stage and absent in mature, medullary thymocytes and peripheral T cells. By using antibodies specific for CD1 (HTA 1/T6) we show here that a large fraction of double-negative thymocytes also express CD1. CD1+3-, CD1+3+, CD1-3+, and CD1-3- subsets all exist. The CD1+3- subset generates CD1+3-4-8+ precursors of CD1+ double-positive cells. A large portion of the CD1+3+ subset bears TCR gamma delta-CD3 complexes. The CD1- subsets are responsive in assays of function, in which they can be stimulated to use the interleukin 2 pathway of proliferation and to mediate cytotoxicity. In contrast, all CD1+ thymocytes behave as functionally inert cells. Thus, the CD1 surface marker delineates human thymocyte precursors and their products which lack, or possess, functional potential in vitro, on both alpha beta and gamma delta lineages.
DOI: 10.4049/jimmunol.134.4.2281
发表时间: 1985-04
影响因子: 4.4
作者:
M. Blue;J. Daley;H. Levine;S. Schlossman
通讯作者: M. Blue;J. Daley;H. Levine;S. Schlossman
DOI: --
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期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
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DOI: --
发表时间: 1987
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Tsoukas,CD;Landgraf,B;Bentin,J;Lamberti,JF;Carson,DA;Vaughan,JH
通讯作者: Vaughan,JH
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DOI: --
发表时间: 1985
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Spits,H;Borst,J;Tax,W;Capel,PJ;Terhorst,C;deVries,JE
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DOI: --
发表时间: 1987
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
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通讯作者: Schlossman,SF