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  • Title: Binding of poly (Glu-60 Ala-30 Tyr-10) by thymic lymphocytes from genetic responder and non-responder mice: effect of antihistocompatibility serum.
    Author: Kennedy LJ, Dorf ME, Unanue ER, Benacerraf B.
    Journal: J Immunol; 1975 Jun; 114(6):1670-5. PubMed ID: 1079215.
    Abstract:
    The binding of 125-I-labeled GAT by murine thymocytes was studied by autoradiography. GAT binding was highly temperature dependent. Significantly more thymocytes bound GAT at 37 degrees C than at 4 degrees C. GAT bound at 37 degrees C was usually distributed in a "cap" over one pole of the cell. Preincubation of thymocytes with specific anti-H-2 serum markedly inhibited the subsequent binding of GAT. The frequency of antigen-binding thymocytes was not significantly affected by preincubation of thymocytes with anti-Thy-1 serum or a number of anti-immunoglobulin sera. The immune response to GAT is controlled by an H-2 linked immune response gene(s). Mice of strains that are H-2p, H-2q or H-2s (non-responders) fail to develop effective T cell helper function necessary for a humoral immune response to GAT under most conditions. However, both responder and non-responder strains had similar numbers of thymocytes capable of binding GAT in vitro, indicating that T cells from non-responder strains of mice do possess a recognition mechanism for GAT.
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