Genetic control of immune responses in vitro. VI. Experimental conditions for the development of helper T-cell activity specific for the terpolymer L-glutamic aicd60-L-alanine30-L-tyrosine10 (GAT) in nonresponder mice.

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Abstract
Mice which are genetic nonresponders to the random terpolymer of L-glutamic acid60-L-alanine30-L-tyrosine10 (GAT) not only fail to develop GAT-specific antibody responses when stimulated with soluble GAT either in vivo or in vitro, but develop GAT-specific T cells which suppress the GAT-specific plaque-forming cell response of normal nonresponder mice stimulated with GAT complexed to methylated bovine serum albumin (MBSA).Thus, both responder and nonresponder mice have T cells which recognize GAT. However, nonresponder mice can develop GAT-specific helper T cells if immunized with GAT bound to MBSA or to macrophages. The relevance of Ir gene-controlled responses is discussed.