Mol Biosyst. 2011 Mar;7(3):809-16. Epub 2010 Dec 10.

Down-regulation of Prdx6 contributes to DNA vaccine induced vitiligo in mice.

Zhou Q, Wang F, Zhang Y, Yang F, Wang Y, Sun S.

Source

Department of Medical Genetics, Second Military Medical University, 800 Xiang-Yin Road, Shanghai 200433, P. R. China.

Abstract

DNA vaccines are widely used against infectious agents for their ability to induce both humoral and cellular immune responses. However, safety concerns regarding autoimmune responses to DNA vaccines, particularly to certain plasmids, should not be neglected. In this study, we serendipitously found that mice inoculated with pcDNA3-ANXB1 (pcDNA3-b1) developed autoimmunity, which did not happen in pVAX-ANXB1 (pVAX-b1) inoculated mice. We also employed proteomics approaches to investigate the distinction between the two groups of DNA vaccine immunized mice. Five different proteins with three-fold or greater changes were separated and identified by two-dimensional electrophoresis. Our study verified the safety of the DNA vaccine and unveiled the underlying potential molecular mechanism of DNA vaccine delivery.

PMID:: 21152572; [PubMed - indexed for MEDLINE]

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