title: Inhibition of in vitro immune response by extracts from long-term cultured lymphoid cells.
mesh_terms: D000818:Animals; D000921:Antibody-Producing Cells / Q000276:immunology*; D002417:Cattle; D002457:Cell Extracts / Q000276:immunology*; D002470:Cell Survival; D002478:Cells, Cultured; D006462:Hemolytic Plaque Technique; D008198:Lymph Nodes / Q000276:immunology; D008214:Lymphocytes / Q000276:immunology*; D051379:Mice; D010447:Peptide Hydrolases / Q000494:pharmacology; D012756:Sheep; D013997:Time Factors; D014020:Tissue Extracts / Q000276:immunology*
chemical_list: D002457:Cell Extracts; D014020:Tissue Extracts; D010447:Peptide Hydrolases