Induction of anti-double stranded DNA antibodies in normal mice by immunization with bacterial DNA

Autor: G S, Gilkeson, J P, Grudier, D G, Karounos, D S, Pisetsky
Rok vydání: 1989
Předmět:
Zdroj: Journal of immunology (Baltimore, Md. : 1950). 142(5)
ISSN: 0022-1767
Popis: Because of recent observations suggesting that bacterial DNA is immunogenic, the induction in normal mice of antibodies to Escherichia coli (EC) dsDNA was investigated. BALB/c and C57BL/6 mice were immunized with dsEC or ds calf thymus (CT) DNA complexed to methylated BSA in adjuvant; antibody responses were measured by ELISA. In both strains, dsEC DNA immunization induced a much higher anti-dsDNA response to dsEC DNA than did dsCT DNA immunization. Neither immunized group showed an appreciable antibody response when tested on dsCT DNA. Anti-dsDNA antibodies were also demonstrated by ELISA using synthetic DNA duplexes as well as a filter binding assay using 3H-labeled dsEC DNA as Ag. These results suggest that bacterial dsDNA is immunogenic and that at least some anti-dsDNA specificities can arise by immunization.
Databáze: OpenAIRE