title: Phagocytosis and killing of salmonella typhimurium by peritoneal exudate cells.
abstract: Normal peritoneal cells from conventional, germfree, or nu/nu mice readily killed opsonized salmonellae, an observation that suggests that this activity in the normal peritoneal cavity may not be dependent on either environmental antigenic stimulation or T-cell mediation. In contrast, peritoneal cells elicited 4 days after injection with thioglycolate medium failed to kill opsonized salmonellae but appeared to be highly phagocytic. Peritoneal cells from thioglycolate-treated mice could be induced to kill opsonized salmonellae by giving the mice a primary footpad injection and a secondary intraperitoneal injection of Corynebacterium parvum. This activation by C. parvum appeared to be thymus dependent, since it did not occur in nu/nu mice.
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial; D001202:Ascitic Fluid / Q000166:cytology; D005260:Female; D007700:Kinetics; D008264:Macrophages / Q000276:immunology*; D051379:Mice; D008808:Mice, Inbred CBA; D008819:Mice, Nude; D009895:Opsonin Proteins; D010587:Phagocytosis; D011425:Propionibacterium acnes; D012486:Salmonella typhimurium / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology; D013864:Thioglycolates / Q000494:pharmacology
chemical_list: D000942:Antigens, Bacterial; D009895:Opsonin Proteins; D013864:Thioglycolates