title: Modulation of immune response by killed Brucella abortus organisms: comparison of the effects of smooth and rough strains on T-dependent responses.
abstract: Inactivated Brucella abortus organisms of the smooth (S) or rough (R) strain were tested comparatively on two T-dependent immune responses: mixed-lymphocyte reaction and delayed-type hypersensitivity. The intravenous injection of S organisms depressed the two tests, whereas R organisms increased mixed-lymphocyte reaction and did not alter delayed-type hypersensitivity significantly. This observation may be helpful in understanding the differences in adjuvant properties of S and R brucellae.
mesh_terms: D002003:Brucella abortus / Q000276:immunology*; D004912:Erythrocytes / Q000276:immunology; D006358:Hot Temperature; D006968:Hypersensitivity, Delayed / Q000276:immunology; D007111:Immunity, Cellular; D008213:Lymphocyte Activation; D007959:Lymphocyte Culture Test, Mixed; D013045:Species Specificity; D013601:T-Lymphocytes / Q000276:immunology*