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Vaccine. 1999 Aug 20;18(1-2):131-9.

Effect of adjuvant composition on immune response to a multiple antigen peptide (MAP) containing a protective epitope from Neisseria meningitidis class 1 porin.

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  • 1Molecular Microbiology Group, University of Southampton Medical School, Southampton General Hospital, UK.


A variety of adjuvants with the potential for use with experimental human vaccines were used for immunisation of mice, in an attempt to augment the humoral immune response to a multiple antigen peptide (MAP) containing a protective epitope from the sero-subtype specific class 1 porin protein of Neisseria meningitidis, in tandem with a Th-cell epitope. Surface plasmon resonance showed that combinations of the immunomodulators pluronic block co-polymer, muramyl dipeptide and monophosphoryl lipid A (MPL), increased the magnitude and avidity of the immune response in comparison with both Al(OH)3 and Freund-type adjuvants. In addition, the incorporation of MPL was essential for the induction of a broad distribution of antibody isotypes. The antibodies induced recognised the native protein in meningococcal outer membranes in a subtype-specific manner. The formulations containing these multiple immunomodulators which have already been used in human phase I/II trials with experimental vaccines, are candidates for inclusion in future human vaccines based on synthetic peptides containing defined, protective epitopes.

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