title: Immune recognition of tumor cells in vivo. I. Role of H-2 gene products in T lymphocyte activation against minor histocompatibility antigens displayed by adenocarcinoma cells.
abstract: Challenges from ADK-1t adenocarcinoma cells of BALB/c (H-2d, Mlsb) mouse origin are rejected by DBA/2 (H-2d, Mlsa) mice on the basis of differences in a limited number of minor histocompatibility antigens. This T lymphocyte-dependent reaction is highly specific, and efficiently triggered only by Ia+ leukocytes infiltrating the tumor mass. ADK-1t challenges depleted of Ia+ infiltrating BALB/c leukocytes grow and kill DBA/2 mice, whereas the simultaneous injection of Ia+-inactivated BALB/c leukocytes induces tumor rejection. The expression of Mlsb-incompatible determinants on the Ia+ BALB/c leukocyte membrane is irrelevant in the induction of this efficient T lymphocyte reaction against BALB/c minor histocompatibility antigens. By contrast, a critical requirement is H-2 matching between the Ia+ leukocytes and the recipient mice at the inductive phase of the reaction.
mesh_terms: D000230:Adenocarcinoma / Q000276:immunology* / Q000473:pathology; D000818:Animals; D000951:Antigens, Neoplasm / Q000276:immunology*; D002460:Cell Line; D005260:Female; D006183:H-2 Antigens / Q000276:immunology*; D008213:Lymphocyte Activation; D051379:Mice; D008807:Mice, Inbred BALB C / Q000276:immunology; D008811:Mice, Inbred DBA / Q000276:immunology; D009374:Neoplasms, Experimental / Q000276:immunology / Q000473:pathology; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D000951:Antigens, Neoplasm; D006183:H-2 Antigens