title: Homologous prime-boost strategy in neonate mice using Neisseria lactamica.
abstract: The aim of the present study was to investigate the immune response to native outer membrane vesicles (NOMVs) of Neisseria lactamica with and without Bordetella pertussis (BP) as adjuvant in intranasal (i.n./i.m) immunization. N. lactamica NOMVs delivered intranasally (i.n) to BALB/c mice in a final volume of 5microl that was gradually introduced with a micropipette, Animals received 1, 2, 3, or 4 doses of antigens at 3, 7, 9 and 12 days after birth. On the 35th day, the animals were immunized intramuscularly (i.m.) with (NOMV) of N. lactamica. The prime-booster strategy using NOMV of N. lactamica with BP as adjuvant in the primer (i.n.) and booster (i.m.) is an effective immunization protocol for inducing humoral immune responses producing IgG antibodies of intermediate to high avidity.
authors.affiliation: Immunology Section, Adolfo Lutz Institute, Av. Dr Arnaldo 355, 11 andar, 01246-902 São Paulo, SP, Brazil.
authors.forename: André Y
authors.initials: AY
authors.lastname: Ito
authors.forename: Simone
authors.initials: S
authors.lastname: Néri
authors.forename: Marta S S
authors.initials: MS
authors.lastname: Machado
authors.forename: Claudia F
authors.initials: CF
authors.lastname: Tunes
authors.forename: Elizabeth N
authors.initials: EN
authors.lastname: De Gaspari
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D000907:Antibodies, Bacterial / Q000097:blood; D001425:Bacterial Outer Membrane Proteins / Q000276:immunology; D001428:Bacterial Vaccines / Q000276:immunology*; D004591:Electrophoresis, Polyacrylamide Gel; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D007114:Immunization; D007117:Immunization, Secondary; D051379:Mice; D008807:Mice, Inbred BALB C; D042806:Neisseria lactamica / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D001425:Bacterial Outer Membrane Proteins; D001428:Bacterial Vaccines