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© Perrine Bomme, Guillaume Duménil, Jean-Marc Panaud.
Coloured scanning electron micrograph (SEM) of Neisseria meningitidis on epithelial cells
Publication : The Journal of antimicrobial chemotherapy

Immunogenicity of meningococcal PBP2 during natural infection and protective activity of anti-PBP2 antibodies against meningococcal bacteraemia in mice

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in The Journal of antimicrobial chemotherapy - 02 Mar 2006

Zarantonelli ML, Antignac A, Lancellotti M, Guiyoule A, Alonso JM, Taha MK

Link to Pubmed [PMID] – 16513914

J. Antimicrob. Chemother. 2006 May;57(5):924-30

OBJECTIVE: To evaluate the immunogenicity of the meningococcal penicillin-binding protein 2 (PBP2) and its potential as a vaccine candidate.

METHODS: The immunogenicity of meningococcal PBP2 was investigated using acute and convalescent sera from patients who recovered from meningococcal disease. Sera were tested against purified recombinant PBP2s corresponding to meningococcal isolates of different genetic lineages, of different serogroups and with various susceptibility levels to penicillin G. Mice were vaccinated with recombinant PBP2 and challenged with Neisseria meningitidis. A purified anti-PBP2 rabbit IgG was also used for passive protection experiments in mice.

RESULTS: Convalescent patients’ sera recognized PBP2s from different strains, showing that this protein is immunogenic in meningococcal disease. Vaccination with purified recombinant PBP2 and purified anti-PBP2 rabbit IgG antibody conferred protection against experimental meningococcaemia in mice.

CONCLUSION: These data argue for considering meningococcal PBP2 as a vaccine candidate.

https://www.ncbi.nlm.nih.gov/pubmed/16513914