Synthetic trimer and tetramer of 3-beta-D-ribose-(1-1)-D-ribitol-5-phosphate conjugated to protein induce antibody responses to Haemophilus influenzae type b capsular polysaccharide in mice and monkeys

Author:

Peeters C C1,Evenberg D1,Hoogerhout P1,Käyhty H1,Saarinen L1,van Boeckel C A1,van der Marel G A1,van Boom J H1,Poolman J T1

Affiliation:

1. Unit for Bacterial Vaccine Development and Pathogenesis Research, National Institute of Public Health and Environmental Protection, Bilthoven, The Netherlands.

Abstract

Synthetic oligosaccharides derived from the capsular polysaccharide (PRP) of Haemophilus influenzae type b were conjugated to carrier proteins via a thioether linkage. Conjugates were made of trimeric and tetrameric ribose-ribitol-phosphate and tetanus toxoid or diphtheria toxin. All conjugates elicited anti-PRP antibody responses with an increasing immunoglobulin G/immunoglobulin M ratio in adult mice and monkeys. Trimer conjugates elicited lower anti-PRP antibody responses compared with tetramer conjugates. Adult monkeys responded equally well to the tetrameric oligosaccharide-tetanus toxoid conjugate as to the oligosaccharide-CRM197 conjugate (HbOC), which elicits protective levels of serum antibodies in human infants after two or three injections.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Immunology,Microbiology,Parasitology

Reference33 articles.

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3. Effect of oligosaccharide chain length, exposed terminal group and hapten loading on the antibody response of human adults and infants to vaccines consisting of Haemophilus influenzae type b capsular antigen uniterminally coupled to the diphtheria protein CRM197;Anderson P. W.;J. Immunol.,1989

4. Chemo-immunological studies on conjugated carbohydrate-proteins II. Immunological specificity of synthetic sugarproteins;Avery 0.;J. Exp. Med.,1929

5. Comparison of the induction of immunoglobulin M and G antibodies in mice with purified pneumococcal type 3 and meningococcal group C polysaccharides and their protein conjugates;Beuvery E. C.;Infect. Immun.,1982

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