Abstract:
:Polysaccharides (PSs) derived from Streptococcus pneumoniae include more than 90 serotypes and differ greatly in their immunogenicity. In addition, immunization with PSs does not induce high affinity antibody production and no memory B-cells are generated. Coupling PSs to carrier proteins has been reported to induce B-cell maturation and to install a B-cell memory. As an alternative carrier protein, the outer membrane protein A (OmpA) derived from Klebsiella pneumoniae has been coupled to various PSs. We evaluated the immunogenicity of two PS conjugates, using PS derived from S. pneumoniae types 14 and 19. In this report, we show that anti-PS IgG responses are generated after the conjugation of PSs to P40. In addition, the humoral response generated is able to protect mice from a bacterial challenge. Our results indicate that P40 could be included in the development of new PS conjugate vaccines.
journal_name
Vaccinejournal_title
Vaccineauthors
Libon C,Haeuw JF,Crouzet F,Mugnier C,Bonnefoy JY,Beck A,Corvaïa Ndoi
10.1016/s0264-410x(02)00149-4subject
Has Abstractpub_date
2002-05-22 00:00:00pages
2174-80issue
17-18eissn
0264-410Xissn
1873-2518pii
S0264410X02001494journal_volume
20pub_type
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