Mixed lymphocyte reaction in mice genetically selected for high (Hi/PHA) or low (Lo/PHA) responsiveness to phytohemagglutinin☆
1979
Abstract Lymph node cells from Hi/PHA and Lo/PHA mice were evaluated for proliferative response after stimulation by allogeneic lymphocytes (MLR) originating from four inbred strains of different H-2 haplotype (C57B1/6, DBA/2, CBA, A). Reactivity to MLR and PHA were compared in these two lines and in the four inbred strains. The high and low responder status of Hi/PHA and Lo/PHA, as determined by T mitogens lymphocyte responsiveness, was also observed when one measured T responsiveness after MLR. Values obtained with the four inbred strains are included in the range of those measured in Hi/PHA and Lo/PHA cells when stimulated by PHA as well as by allogeneic cells. In contrast, when used as stimulator cells, Hi/PHA or Lo/PHA lymphocytes induce an equivalent proliferative response versus every responder inbred strain studied. These experiments support the hypothesis of a common genetic control of proliferative response following PHA or MLR stimulation. The genes implicated would be different from those coding for I region associated antigens.
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