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2004 JUN 2 - (NewsRx.com & NewsRx.net) -- DNA vaccination with gp96-peptide fusion proteins induces protection against an intracellular bacterial pathogen.
"Effective vaccination using in vitro peptide-loaded heat-shock proteins (HSP), tumor-derived HSP, and HSP fusion proteins has been shown in viral, parasite, and tumor model systems. We demonstrate protective DNA vaccination using gp96-peptide fusion proteins against the intracellular bacterial pathogen Listeria monocytogenes in a mouse model. In contrast to previous studies using pathogen-derived HSP as vaccine vehicles, we used recombinant endogenous (Mus musculus) gp96 (GRP94) as a carrier for immunodominant listerial peptides," scientists in Germany report.
"Analyses of the cellular immune response revealed profound epitope-specific IFN-gamma and cytotoxic T cell responses," said Ulrike K. Rapp and Stefan H. Kaufmann at the Max Planck Institute for Infection Biology. "Our findings suggest a predominantly MHC I-restricted T cell response to DNA vaccination with gp96 fusion proteins ...
Source: HighBeam Research, DNA vaccine induces protection against intracellular bacterial...