title: Antigen-specific augmentation of delayed-type hypersensitivity by a humoral factor in the culture supernatant of immune spleen cells.
abstract: Supernatants were harvested from a 24-hr culture of immune mouse spleen cells and erythrocyte antigens. Delayed footpad reactions to such heterologous erythrocytes were augmented antigen specifically when the supernatants were transferred a few hours before immunization of recipients. The augmentation factor(s) contained in the supernatants may exert its effect on the induction phase of delayed-type hypersensitivity.
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D000939:Epitopes; D005260:Female; D006968:Hypersensitivity, Delayed / Q000175:diagnosis / Q000209:etiology / Q000276:immunology*; D008214:Lymphocytes / Q000276:immunology*; D008222:Lymphokines / Q000502:physiology*; D051379:Mice; D008815:Mice, Inbred Strains; D013154:Spleen / Q000166:cytology / Q000276:immunology*
chemical_list: D000939:Epitopes; D008222:Lymphokines