The development of an experimental multiple serogroups vaccine for Neisseria meningitidis

• Published in: PloS one Vol. 8; no. 11; p. e79304
• Main Authors: Pinto, Valerian B, Burden, Robert, Wagner, Allyn, Moran, Elizabeth E, Lee, Che-Hung
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 14.11.2013; Public Library of Science (PLoS)
• Subjects: Animals; Antibodies; Antigens; Antigens, Bacterial - genetics; Antigens, Bacterial - immunology; Bacterial Outer Membrane Proteins - genetics; Bacterial Outer Membrane Proteins - immunology; Cross Reactions - immunology; Cytokines - blood; Disease; Endotoxins - metabolism; Epidemics; FDA approval; Fusion protein; Gene mapping; Immunization; Immunogenicity; Laboratory animals; Medical research; Membrane vesicles; Meningitis; Meningitis, Meningococcal - metabolism; Meningitis, Meningococcal - prevention & control; Meningococcal Vaccines - genetics; Meningococcal Vaccines - immunology; Mice; Neisseria meningitidis; Neisseria meningitidis - classification; Neisseria meningitidis - genetics; Neisseria meningitidis - immunology; Neisseria meningitidis, Serogroup B - genetics; Neisseria meningitidis, Serogroup B - immunology; Plasmids; Polysaccharides; Proteins; Serotyping; Tetanus; Vaccines; Vaccines, Conjugate - genetics; Vaccines, Conjugate - immunology; United States > US; Maryland; Africa
• ISSN: 1932-6203; 1932-6203
• DOI: 10.1371/journal.pone.0079304

A native outer membrane vesicles (NOMV) vaccine was developed from three antigenically diverse strains of Neisseria meningitidis that express the L1,8, L2, and L3,7 lipooligosaccharide (LOS) immunotypes, and whose synX, and lpxL1 genes were deleted.. Immunogenicity studies in mice showed that the vaccine induced bactericidal antibody against serogroups B, C, W, Y and X N. meningitidis strains. However, this experimental NOMV vaccine was not effective against serogroup A N. meningitidis strains. N. meningitidis capsular polysaccharide (PS) from serogroups A, C, W and Y were effective at inducing bactericidal antibody when conjugated to either tetanus toxoid or the fHbp1-fHbp2 fusion protein fHbp(1+2). The combination of the NOMV vaccine and the N. meningitidis serogroup A capsular polysaccharide (MAPS) protein conjugate was capable of inducing bactericidal antibodies against a limited number of N. meningitidis strains from serogroups A, B, C, W, Y and X tested in this study.