Cheung N K, Scherr D H, Heghinian K M, Benacerraf B, Dorf M E
J Exp Med. 1978 Dec 1;148(6):1539-49. doi: 10.1084/jem.148.6.1539.
The palmitoyl derivative of the linear polypeptide of poly-(L-Glu-L-Lys-L-Phe)n (GLphi) can be coupled to spleen cells directly. The intravenous administration of 2 X 10(5)--3 X 10(7) GLphi-coupled syngeneic spleen cells induces GL-phi-specific suppressor T cells in C57BL/6 nonresponder mice. The suppression is antigen specific and can be detected by the inhibition of the primary GLphi plaque-forming cell response to challenge with GLphi-fowl gamma globulin. The number of inducer cells required for suppression carry less than 0.1 microgram of antigen. Spleen cells from tolerized mice can transfer suppression to normal syngeneic recipients. The suppression is cyclophosphamide sensitive and the suppressor cells bear the Thy 1.2 marker. This method of inducing antigen-specific suppressor cells may be generally applicable to other antigen systems.
聚(L-谷氨酸-L-赖氨酸-L-苯丙氨酸)n(GLphi)线性多肽的棕榈酰衍生物可直接与脾细胞偶联。静脉注射2×10⁵ - 3×10⁷个GLphi偶联的同基因脾细胞可在C57BL/6无反应小鼠中诱导产生GLphi特异性抑制性T细胞。这种抑制是抗原特异性的,可通过抑制初次GLphi空斑形成细胞对GLphi - 鸡γ球蛋白攻击的反应来检测。产生抑制所需的诱导细胞数量携带的抗原少于0.1微克。来自耐受小鼠的脾细胞可将抑制作用转移给正常同基因受体。这种抑制对环磷酰胺敏感,且抑制性细胞带有Thy 1.2标记。这种诱导抗原特异性抑制细胞的方法可能普遍适用于其他抗原系统。