title: Cooperative interaction of B lymphocytes with antigen-specific helper T lymphocytes is MHC restricted.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D001402:B-Lymphocytes / Q000276:immunology*; D000939:Epitopes; D000949:Histocompatibility Antigens Class II; D008213:Lymphocyte Activation; D008211:Lymphocyte Cooperation; D008285:Major Histocompatibility Complex; D051379:Mice; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D000939:Epitopes; D000949:Histocompatibility Antigens Class II