Induction of tolerance to 1-fluoro-2,4-dinitrobenzene contact sensitivity with hapten-modified lymphoid cells. II. Selective tolerance in F₁ mice of T cell subsets recognizing 1-fluoro-2,4-dinitrobenzene associated with parental major histocompatibility complex antigens

F₁ animals were tolerized to 1-fluoro-2,4-dinitrobenzene (DNFB) contact sensitivity with parentally derived, in vitro hapten-modified spleen cells. This tolerant state was found, upon adoptive transfer to naive parental strain recipients, to affect only that T cell subpopulation that recognized the parental haplotype of the cell used as the tolerogen, and did not inhibit the specific of the remaining T cell subset to confer immunity. This demonstrates that this tolerant state involves the inactivation of a cell required for the expression of contact sensitivity by recognizing DNFB in association with self major histocompatibility complex gene products.