title: Blast transformation of B cells induced by an alpha-macroglobulin-associated lymphokine produced in crowded lymphoid cell cultures.
mesh_terms: D000818:Animals; D007611:Aprotinin / Q000494:pharmacology; D001402:B-Lymphocytes / Q000276:immunology*; D002478:Cells, Cultured; D002999:Clone Cells / Q000276:immunology; D003470:Culture Media; D008213:Lymphocyte Activation / Q000187:drug effects; D008222:Lymphokines / Q000276:immunology*; D011817:Rabbits; D013601:T-Lymphocytes / Q000276:immunology; D000511:alpha-Macroglobulins / Q000276:immunology*
chemical_list: D003470:Culture Media; D008222:Lymphokines; D000511:alpha-Macroglobulins; D007611:Aprotinin