David C, Meo T, McCormick J, Shreffler D
J Exp Med. 1976 Jan 1;143(1):218-24. doi: 10.1084/jem.143.1.218.
Ia specificities 1-10 were detected on LPS-stimulated splenic lymphocytes and on Con A-stimulated spleen, lymph node, and thymus blasts by direct cytotoxic tests. Since Ia antigens are not readily detectable on resting thymocytes, our results suggest that T cells require some signal before they exhibit full expression of Ia specificities. Absorption-elution studies indicated that most of the Ia specificities detected on T and B cells may be identical. Ia antigens detected by homologous antisera gave much stronger reactions than those detected by cross-reacting antisera.
通过直接细胞毒性试验在脂多糖刺激的脾淋巴细胞以及刀豆蛋白A刺激的脾、淋巴结和胸腺母细胞上检测到Ia特异性1 - 10。由于静止胸腺细胞上不易检测到Ia抗原,我们的结果表明T细胞在充分表达Ia特异性之前需要某种信号。吸收 - 洗脱研究表明,在T细胞和B细胞上检测到的大多数Ia特异性可能是相同的。同源抗血清检测到的Ia抗原比交叉反应抗血清检测到的Ia抗原反应要强得多。