Dual T cell receptor beta chain expression on human T lymphocytes.

Dual T cell receptor beta chain expression on human T lymphocytes.
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人T淋巴细胞上的双T细胞受体β链表达。

DOI:
10.1084/jem.181.4.1391
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发表时间:
1995-04-01
影响因子:
15.3
通讯作者:
Bonneville, Marc
Bonneville, Marc
中科院分区:
医学1区
文献类型:
--
作者:
Davodeau, Francois;Peyrat, Marie-Alix;Romagne, Francois;Necker, Antje;Hallet, Marie-Martine;Vie, Henri;Bonneville, Marc

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淋巴细胞抗原受体链的等位基因排斥被假设为免疫系统发展的一种机制,以确保有效的淋巴细胞库选择和严格控制淋巴细胞特异性。它被有效地证明对免疫球蛋白(Ig)和T细胞受体(TCR) β链基因都有效。我们目前的观察表明,接近1%的人类T淋巴细胞逃脱了这种等位基因的控制,并表达了两个具有不同超抗原反应性的表面TCR β链。由于这种高频率的双β链表达并没有导致任何显著的免疫失调,这些结果质疑是否需要通过等位基因排除来确保克隆单特异性的机制。
Allelic exclusion of lymphocyte antigen receptor chains has been hypothesized as a mechanism developed by the immune system to ensure efficient lymphocyte repertoire selection and tight control of lymphocyte specificity. It was effectively shown to be operative for both the immunoglobulin (Ig) and the T cell receptor (TCR) beta chain genes. Our present observations suggest that close to 1% of human T lymphocytes escape this allelic control, and express two surface TCR beta chains with distinct superantigenic reactivities. Since this high frequency of dual beta chain expressors did not result in any dramatic immune dysregulations, these results question the need for a mechanism ensuring clonal monospecificity through allelic exclusion.
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影响因子: 64.5
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