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Fas配体介导人T淋巴细胞中激活诱导的细胞死亡。

Fas ligand mediates activation-induced cell death in human T lymphocytes.

作者信息

Alderson M R, Tough T W, Davis-Smith T, Braddy S, Falk B, Schooley K A, Goodwin R G, Smith C A, Ramsdell F, Lynch D H

机构信息

Immunex Research and Developmental Corporation, Seattle, Washington 98101.

出版信息

J Exp Med. 1995 Jan 1;181(1):71-7. doi: 10.1084/jem.181.1.71.

Abstract

A significant proportion of previously activated human T cells undergo apoptosis when triggered through the CD3/T cell receptor complex, a process termed activation-induced cell death (AICD). Ligation of Fas on activated T cells by either Fas antibodies or recombinant human Fas-ligand (Fas-L) also results in cytolysis. We demonstrate that these two pathways of apoptosis are causally related. Stimulation of previously activated T cells resulted in the expression of Fas-L mRNA and lysis of Fas-positive target cells. Fas-L antagonists inhibited AICD of T cell clones and staphylococcus enterotoxin B (SEB)-specific T cell lines. The data indicate AICD in previously stimulated T cells is mediated by Fas/Fas-L interactions.

摘要

相当一部分先前被激活的人类T细胞在通过CD3/T细胞受体复合物触发时会发生凋亡,这一过程称为激活诱导的细胞死亡(AICD)。用Fas抗体或重组人Fas配体(Fas-L)连接活化T细胞上的Fas也会导致细胞溶解。我们证明这两种凋亡途径存在因果关系。刺激先前活化的T细胞会导致Fas-L mRNA的表达以及Fas阳性靶细胞的裂解。Fas-L拮抗剂可抑制T细胞克隆和葡萄球菌肠毒素B(SEB)特异性T细胞系的AICD。数据表明,先前受刺激的T细胞中的AICD是由Fas/Fas-L相互作用介导的。

相似文献

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Protection of T cells from activation-induced cell death by Fas+ B cells.Fas+ B细胞对T细胞激活诱导的细胞死亡的保护作用。
Eur J Immunol. 2000 Mar;30(3):931-7. doi: 10.1002/1521-4141(200003)30:3<931::AID-IMMU931>3.0.CO;2-H.

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