title: Protection against MOPC-315 plasmacytoma by immunization with C-type particle preparations.
abstract: Mice were given injections of C-type particles extracted from the ascitic fluid of plasmacytoma-bearing mice. These particles, extracted from MOPC-315 tumor-bearing mice and injected into BALB/c mice, protected them against challenge with MOPC-315 tumor cells. The protection was dependent upon tumor cell dose; 66% survival was observed with a lethal dose of tumor cells. No protection was observed against challenge with another plasmacytoma (S13). Attempts to protect mice against S-13 plasmacytoma by immunizing them with C-type particles originating from S-13 tumor-bearing mice were unsuccessful.
mesh_terms: D000818:Animals; D007109:Immunity; D051379:Mice; D008807:Mice, Inbred BALB C; D009368:Neoplasm Transplantation; D009374:Neoplasms, Experimental / Q000276:immunology; D010954:Plasmacytoma / Q000276:immunology* / Q000382:microbiology; D012190:Retroviridae / Q000276:immunology* / Q000302:isolation & purification; D014185:Transplantation, Isogeneic