Plasmids encoding the mucosal chemokines CCL27 and CCL28 are effective adjuvants in eliciting antigen-specific immunity in vivo

Gene Ther. 2010 Jan;17(1):72-82. doi: 10.1038/gt.2009.112. Epub 2009 Oct 22.

Abstract

A hurdle facing DNA vaccine development is the ability to generate strong immune responses systemically and at local immune sites. We report a novel systemically administered DNA vaccination strategy using intramuscular codelivery of CCL27 or CCL28, which elicited elevated peripheral IFN-gamma and antigen-specific IgG while driving antigen-specific T-cell secretion of cytokine and antibody production in the gut-associated lymphoid tissue and lung. This strategy resulted in induction of long-lived antibody responses that neutralized influenza A/PR8/34 and protected mice from morbidity and mortality associated with a lethal intranasal viral challenge. This is the first example of the use of CCL27 and CCL28 chemokines as adjuvants to influence a DNA vaccine strategy, suggesting further examination of this approach for manipulation of vaccine-induced immunity impacting both quality and phenotype of responses.

Publication types

  • Evaluation Study
  • Research Support, N.I.H., Extramural

MeSH terms

  • Adjuvants, Immunologic*
  • Animals
  • Chemokine CCL27 / immunology*
  • Chemokines, CC / immunology*
  • Immunization / methods*
  • Immunoglobulin G / biosynthesis*
  • Influenza A virus / immunology
  • Interferon-gamma / biosynthesis
  • Mice
  • Plasmids*
  • Vaccines, DNA / immunology*

Substances

  • Adjuvants, Immunologic
  • CCL27 protein, human
  • CCL28 protein, human
  • Chemokine CCL27
  • Chemokines, CC
  • Immunoglobulin G
  • Vaccines, DNA
  • Interferon-gamma