title: Stimulation of antibacterial vaccination in mice by polyadenylic acid: polyuridylic acid complex.
abstract: The effect of polyadenylic acid:polyuridylic acid complex (poly A:U) on immunization was investigated in mice vaccinated by killed Brucella melitensis cells suspended in incomplete adjuvant or in saline. Addition of 300 mug of poly A:U to vaccines rendered 3 x 10(8)B. melitensis cells in saline as immunogenic as 3 x 10(11) cells in oil adjuvant against a severe B. abortus challenge. In the mouse and Brucella system, poly A:U exerts an adjuvant effect on immunity but does not stimulate production of circulating antibodies that could be demonstrated at the time of autopsy.
mesh_terms: D000276:Adjuvants, Immunologic; D000818:Animals; D001428:Bacterial Vaccines; D002002:Brucella / Q000276:immunology*; D003168:Complement Fixation Tests; D006386:Hemagglutination Tests; D007369:Interferon Inducers / Q000494:pharmacology*; D051379:Mice; D011063:Poly A-U / Q000494:pharmacology; D011119:Polynucleotides / Q000494:pharmacology*; D014611:Vaccination
chemical_list: D000276:Adjuvants, Immunologic; D001428:Bacterial Vaccines; D007369:Interferon Inducers; D011119:Polynucleotides; D011063:Poly A-U