Induction of broadly neutralizing antibodies against measles virus mutants using a polyepitope vaccine strategy

Fabienne B. Bouche, André Steinmetz, Yusuke Yanagi, Claude P. Muller

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Chimeric molecules expressing multiple copies of the loop-forming hemagglutinin noose epitope (designated as "L"; aa386-400), a protective B cell epitope of the measles virus were generated by recombinant technology. The recombinant polyepitope [L4T4]2 combining two sets of four repeats of the L epitope and with two sets of four repeats of the human promiscuous T cell epitope of tetanus toxoid ("T", tt830-844) was produced in transgenic carrot plants. After intraperitoneal immunization of mice with plant membrane extract, sera neutralized all wild-type viruses. In a modified plaque reduction neutralization assay based on CD150-transfected Vero cells anti-[L4T 4]2 sera neutralized all field isolates, irrespective of mutations in the L epitope. Even viruses with a mutation in the contact residues of a neutralizing L-specific monoclonal antibody or two mutations in other positions of the epitope were equally sensitive to neutralization. These results suggest that the multiple copies of the L epitope fold into different conformations that induce a repertoire of B cells diverse enough to overcome the genetic diversity of field viruses.

Original languageEnglish
Pages (from-to)2074-2077
Number of pages4
JournalVaccine
Volume23
Issue number17-18
DOIs
Publication statusPublished - Mar 18 2005

All Science Journal Classification (ASJC) codes

  • Molecular Medicine
  • Immunology and Microbiology(all)
  • veterinary(all)
  • Public Health, Environmental and Occupational Health
  • Infectious Diseases

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