Kapp J A, Araneo B A, Clevinger B L
J Exp Med. 1980 Jul 1;152(1):235-40. doi: 10.1084/jem.152.1.235.
The synthetic terpolymer L-glutamic acid60-L-alanine30-L-tyrosine10 (GAT) stimulates GAT-specific suppressor T cells in nonresponder mice. Extracts from these T cells contain a GAT-specific soluble T cell suppressor factor (GAT-TsF) that inhibits development of GAT-specific plaque-forming cell (PFC) responses by spleen cells from nonresponder mice stimulated with GAT complexed to methylated bovine serum albumin (GAT-MBSA). These extracts also contain a factor that inhibits development of GAT-specific proliferative responses by GAT-MBSA-primed, nonresponder lymph node T cells. Experiments reported in this manuscript show that a hybrid T cell line, produced by fusion of the AKR thymoma, BW5147, with spleen cells that contain GAT-specific suppressor T cells, produces a constitutive GAT-specific suppresor factor that functionally and serologically resembles GAT-TsF extracted from T cells. More importantly, both GAT-specific PFC and T cell proliferative responses are inhibited by this factor.
合成三元共聚物L-谷氨酸60-L-丙氨酸30-L-酪氨酸10(GAT)可刺激无反应小鼠体内GAT特异性抑制性T细胞。这些T细胞的提取物含有一种GAT特异性可溶性T细胞抑制因子(GAT-TsF),该因子可抑制无反应小鼠的脾细胞在与甲基化牛血清白蛋白复合的GAT(GAT-MBSA)刺激下产生GAT特异性空斑形成细胞(PFC)反应。这些提取物还含有一种因子,可抑制GAT-MBSA致敏的无反应淋巴结T细胞产生GAT特异性增殖反应。本手稿中报道的实验表明,由AKR胸腺瘤BW5147与含有GAT特异性抑制性T细胞的脾细胞融合产生的杂交T细胞系可产生一种组成型GAT特异性抑制因子,其在功能和血清学上类似于从T细胞中提取的GAT-TsF。更重要的是,该因子可抑制GAT特异性PFC和T细胞增殖反应。