Wilson D B, Lindahl K F, Wilson D H, Sprent J
J Exp Med. 1977 Aug 1;146(2):361-7. doi: 10.1084/jem.146.2.361.
Negatively selected mouse and rat lymphocyte populations, specifically deprived of alloreactivity to a particular major histocompatibility complex (MHC) haplotype, are nevertheless fully capable of responding to trinitrophenyl (TNP)-modified allogeneic stimulator cells and developing cytotoxic T-lymphocyte activity to TNP-altered allogeneic target cells. As for syngeneic systems, lytic expression of those responder killer cells also requires MHC identity between the target and stimulator cell populations. Such a finding argues strongly against two variations of the dual recognition hypothesis: like-like interactions and adaptive differentiation. Instead, these data favor either the altered self model or a third variation of the dual receptor model, where one of the relevent receptors is specific for the modifying antigen and the second is a low affinity receptor unable to be triggered in the absence of a modifying antigen.
经过阴性选择的小鼠和大鼠淋巴细胞群体,虽然对特定的主要组织相容性复合体(MHC)单倍型完全没有同种异体反应性,但仍完全能够对三硝基苯基(TNP)修饰的同种异体刺激细胞作出反应,并对TNP改变的同种异体靶细胞产生细胞毒性T淋巴细胞活性。至于同基因系统,那些反应性杀伤细胞的裂解表达也需要靶细胞群体和刺激细胞群体之间的MHC一致性。这一发现有力地反驳了双重识别假说的两种变体:同类相互作用和适应性分化。相反,这些数据支持改变自身模型或双重受体模型的第三种变体,即其中一个相关受体对修饰抗原具有特异性,另一个是低亲和力受体,在没有修饰抗原的情况下无法被触发。