Identification of a human OX-40 ligand, a costimulator of CD4+ T cells with homology to tumor necrosis factor.

Identification of a human OX-40 ligand, a costimulator of CD4+ T cells with homology to tumor necrosis factor.
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鉴定人OX-40配体,这是具有与肿瘤坏死因子同源的CD4+ T细胞的costimulator。

DOI:
10.1084/jem.180.2.757
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发表时间:
1994-08-01
影响因子:
15.3
通讯作者:
Engleman, Edgar G.
Engleman, Edgar G.
中科院分区:
医学1区
文献类型:
--
作者:
Godfrey, Wayne R.;Fagnoni, Francesco F.;Haraa, Marwan A.;Buck, David;Engleman, Edgar G.

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人OX-40细胞表面抗原是一种CD4+ T细胞活化标记物,作为共刺激受体,是神经生长因子受体/肿瘤坏死因子(TNF)受体家族的成员。利用受体的可溶性形式,细胞外区与人免疫球蛋白Fc融合,我们从活化的B淋巴母细胞样细胞系MSAB的文库中克隆了人OX-40配体cDNA。编码的蛋白被鉴定为gp34,这是一种II型跨膜抗原,以前已知仅由人类T细胞嗜淋巴病毒1感染的细胞表达。我们将gp34描述为TNF家族的新成员,并发现在COS细胞中表达的重组配体共同刺激肉豆蔻酸酯、植物血凝素和抗cd3诱导的CD4+ T细胞增殖。
The human OX-40 cell surface antigen is a CD4+ T cell activation marker that acts as a costimulatory receptor and is a member of the nerve growth factor receptor/tumor necrosis factor (TNF) receptor family. Using a soluble form of the receptor, the extracellular region fused with human immunoglobulin Fc, we expression cloned the human OX-40 ligand cDNA from a library derived from an activated B lymphoblastoid cell line MSAB. The encoded protein is identified as gp34, a type II transmembrane antigen previously known to be expressed only by human T cell lymphotropic virus 1-infected cells. We describe gp34 as a new member of the TNF family, and find that the recombinant ligand expressed in COS cells costimulates phorbol myristate acetate, phytohemagglutinin, and anti-CD3-induced CD4+ T cell proliferation.
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