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对特定强组织相容性同种异体抗原具有反应性的大鼠胸导管淋巴细胞群体中绵羊红细胞特异性辅助活性。

Sheep red blood cell-specific helper activity in rat thoracic duct lymphocyte populations positively selected for reactivity to specific strong histocompatibility alloantigens.

作者信息

Heber-Katz E, Wilson D B

出版信息

J Exp Med. 1976 Mar 1;143(3):701-6. doi: 10.1084/jem.143.3.701.

Abstract

These studies show that positively selected T-cell populations, having enriched reactivity in the mixed lymphocyte interaction and the graft-versus-host reaction to strong alloantigens of a chosen major histocompatibility complex haplotype, also possess helper activity which is quantitatively normal in the generation of primary antibody responses to sheep red blood cells in vitro. Such positively selected populations give a linear dose plaque-forming cells response curve indistinguishable from that seen with normal unselected T-cell populations. These findings imply that T cells reactive to histocompatibility antigens also react to conventional antigens, and the possibility is raised that they may do so by some recognition mechanism involving multiple specificities.

摘要

这些研究表明,经过阳性选择的T细胞群体,在混合淋巴细胞相互作用以及对选定的主要组织相容性复合体单倍型的强同种异体抗原的移植物抗宿主反应中具有增强的反应性,在体外对绵羊红细胞的初次抗体反应产生过程中,其辅助活性在数量上也是正常的。这样经过阳性选择的群体产生的线性剂量噬斑形成细胞反应曲线,与正常未选择的T细胞群体所产生的曲线没有区别。这些发现意味着,对组织相容性抗原具有反应性的T细胞也会对传统抗原产生反应,并且提出了一种可能性,即它们可能通过某种涉及多种特异性的识别机制来实现这一点。

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