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  • Hadad, Ronza,1984-WHO Collaborating Centre for Gonorrhoea and other STIs, National Reference Laboratory for Pathogenic Neisseria, Örebro University Hospital, Örebro, Sverige; Department of Laboratory Medicine, Microbiology, Örebro University Hospital, Örebro, Sweden (author)

Novel meningococcal 4CMenB vaccine antigens : prevalence and polymorphisms of the encoding genes in Neisseria gonorrhoeae

  • Article/chapterEnglish2012

Publisher, publication year, extent ...

  • 2012-04-28
  • Wiley-Blackwell,2012
  • printrdacarrier

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  • LIBRIS-ID:oai:DiVA.org:oru-58673
  • https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-58673URI
  • https://doi.org/10.1111/j.1600-0463.2012.02903.xDOI

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  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

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  • Funding Agencies:Örebro County Council Research Committee  Foundation for Medical Research at Örebro University Hospital, Sweden  Novartis VD, Siena, Italy 
  • The first cross-protective Neisseria meningitidis vaccine (focus on serogroup B), the protein-based 4 component meningococcus serogroup B (4CMenB), includes the New Zealand outer membrane vesicle and three main genome-derived neisserial antigens (GNAs). These GNAs are fHbp (fused to GNA2091), NHBA (fused to GNA1030) and NadA. In this study, the prevalence and polymorphisms of the nucleotide and amino acid sequences of the 4CMenB antigens in a temporally and geographically diverse collection of N. gonorrhoeae isolates (n similar to=similar to 111) were investigated. All the examined GNA genes, except the nadA gene, were present in all gonococcal isolates. However, 25 isolates contained premature stop codons in the fHbp gene and/or the nhba gene, resulting in truncated proteins. Compared with the 4CMenB antigen sequences in reference strain MC58, the gonococcal strains displayed 67.095.4% and 60.994.9% identity in nucleotide sequence and amino acid sequence, respectively, in the equivalent GNA antigens. The absence of NadA, lack of universal expression of fHbp and NHBA and the uncertainty regarding the surface exposure of fHbp as well as the function of NHBA in N. gonorrhoeae will likely limit the use of the identical 4CMenB antigens in a gonococcal vaccine. However, possible cross-immunity of 4CMenB with gonococci and expression and function of the equivalent gonococcal GNAs, as well as of more appropriate GNAs for a gonococcal vaccine, need to be further examined.

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  • Jacobsson, Susanne,1974-Örebro universitet,Institutionen för hälsovetenskap och medicin,WHO Collaborating Centre for Gonorrhoea and other STIs, National Reference Laboratory for Pathogenic Neisseria, Örebro University Hospital, Örebro, Sverige; Department of Laboratory Medicine, Microbiology, Örebro University Hospital, Örebro, Sweden(Swepub:oru)sajn (author)
  • Pizza, MariagraziaNovartis V&D, Siena, Italy (author)
  • Rappuoli, RinoNovartis V&D, Siena, Italy (author)
  • Fredlund, Hans,1952-WHO Collaborating Centre for Gonorrhoea and other STIs, National Reference Laboratory for Pathogenic Neisseria, Örebro University Hospital, Örebro, Sverige; Department of Laboratory Medicine, Microbiology, Örebro University Hospital, Örebro, Sweden(Swepub:oru)hfd (author)
  • Olcén, PerWHO Collaborating Centre for Gonorrhoea and other STIs, National Reference Laboratory for Pathogenic Neisseria, Örebro University Hospital, Örebro, Sverige; Department of Laboratory Medicine, Microbiology, Örebro University Hospital, Örebro, Sweden (author)
  • Unemo, Magnus,1970-Örebro universitet,Institutionen för hälsovetenskap och medicin,WHO Collaborating Centre for Gonorrhoea and other STIs, National Reference Laboratory for Pathogenic Neisseria, Örebro University Hospital, Örebro, Sverige; Department of Laboratory Medicine, Microbiology, Örebro University Hospital, Örebro, Sweden(Swepub:oru)muo (author)
  • WHO Collaborating Centre for Gonorrhoea and other STIs, National Reference Laboratory for Pathogenic Neisseria, Örebro University Hospital, Örebro, Sverige; Department of Laboratory Medicine, Microbiology, Örebro University Hospital, Örebro, SwedenInstitutionen för hälsovetenskap och medicin (creator_code:org_t)

Related titles

  • In:Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS): Wiley-Blackwell120:9, s. 750-7600903-46411600-0463

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