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

MA Kutzler, KA Kraynyak, SJ Nagle, RM Parkinson… - Gene therapy, 2010 - nature.com
MA Kutzler, KA Kraynyak, SJ Nagle, RM Parkinson, D Zharikova, M Chattergoon, H Maguire…
Gene therapy, 2010nature.com
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-γ 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 …
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-γ 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.
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