Immunization with a DNA chimeric molecule encoding a hemagglutinin peptide and a scFv CD21-specific antibody fragment induces long-lasting IgM and CTL responses to influenza virus

Nina Ivanovska, Andrey Tchorbanov, J. Prechl, Vera Maximova, Elisaveta Voynova, Tchavdar L. Vassilev

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Killed viral vaccines are known to induce primarily antibody responses. By contrast DNA vaccination using naked DNA encoding viral antigens induces both humoral and cellular immune responses. Various approaches have been used to construct DNA vaccines with build-in adjuvanticity. We hypothesized that sequences encoding a common epitope of influenza A virus hemagglutinin jointed to sequences encoding a single-chain variable fragment (scFv) antibody fragment to a costimulatory B cell surface receptor would result in the in vivo expression of a chimeric viral peptide with increased immunogenicity. Such a hybrid DNA molecule was constructed by us, encoding a T and B cell epitope-containing influenza hemagglutinin peptide and a scFv antibody fragment binding to mouse complement receptors I and II (CR1 and CR2). A single immunization with a plasmid containing the described construct induced a strong anti-influenza cytotoxic response lasting for more than six months and a weak antibody response.

Original languageEnglish
Pages (from-to)1830-1837
Number of pages8
JournalVaccine
Volume24
Issue number11
DOIs
Publication statusPublished - Mar 10 2006

Fingerprint

Single-Chain Antibodies
Immunoglobulin Fragments
Hemagglutinins
hemagglutinins
Orthomyxoviridae
Immunoglobulin M
Immunization
immunization
peptides
Peptides
Human Influenza
antibodies
Antibody Formation
DNA
influenza
Viral Vaccines
epitopes
B-lymphocytes
B-Lymphocyte Epitopes
Complement Receptors

Keywords

  • CTL response
  • DNA vaccines
  • Influenza virus

ASJC Scopus subject areas

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

Cite this

Immunization with a DNA chimeric molecule encoding a hemagglutinin peptide and a scFv CD21-specific antibody fragment induces long-lasting IgM and CTL responses to influenza virus. / Ivanovska, Nina; Tchorbanov, Andrey; Prechl, J.; Maximova, Vera; Voynova, Elisaveta; Vassilev, Tchavdar L.

In: Vaccine, Vol. 24, No. 11, 10.03.2006, p. 1830-1837.

Research output: Contribution to journalArticle

Ivanovska, Nina ; Tchorbanov, Andrey ; Prechl, J. ; Maximova, Vera ; Voynova, Elisaveta ; Vassilev, Tchavdar L. / Immunization with a DNA chimeric molecule encoding a hemagglutinin peptide and a scFv CD21-specific antibody fragment induces long-lasting IgM and CTL responses to influenza virus. In: Vaccine. 2006 ; Vol. 24, No. 11. pp. 1830-1837.
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