Downmodulation of peripheral MOG-specific immunity by pVAXhsp65 treatment during EAE does not reach the CNS

• Published in: Journal of neuroimmunology Vol. 268; no. 1; pp. 35 - 42
• Main Authors: Zorzella-Pezavento, Sofia Fernanda Gonçalves, Chiuso-Minicucci, Fernanda, França, Thais Graziela Donegá, Ishikawa, Larissa Lumi Watanabe, da Rosa, Larissa Camargo, Colavite, Priscila Maria, Marques, Camila, Ikoma, Maura Rosane Valerio, Silva, Célio Lopes, Sartori, Alexandrina
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 15.03.2014
• Subjects: Allergy and Immunology; Animals; CD4 + CD25 + Foxp3 + T cells; Cytokines - biosynthesis; Cytokines - immunology; DNA vaccine; Encephalomyelitis, Autoimmune, Experimental - immunology; Encephalomyelitis, Autoimmune, Experimental - pathology; Encephalomyelitis, Autoimmune, Experimental - prevention & control; Experimental autoimmune encephalomyelitis; Female; Heat-Shock Proteins - immunology; hsp65; Mice; Mice, Inbred C57BL; Myelin-Oligodendrocyte Glycoprotein - immunology; Neurology; Vaccines, DNA - immunology; Vaccines, DNA - pharmacology; DNA vaccine; Experimental autoimmune encephalomyelitis; hsp65; CD4 + CD25 + Foxp3 + T cells; CD4+CD25+Foxp3+ T cells
• ISSN: 0165-5728; 1872-8421
• DOI: 10.1016/j.jneuroim.2013.12.015

Abstract Most of the therapeutic strategies to control multiple sclerosis are directed to immune modulation and inflammation control. As heat shock proteins are able to induce immunoregulatory T cells, we investigated the therapeutic effect of a genetic vaccine containing the mycobacterial hsp65 gene on experimental autoimmune encephalomyelitis (EAE). Although pVAXhsp65 was immunogenic for mice with EAE and downmodulated specific cytokine induction by MOG, therapy was not able to decrease clinical severity nor to modify immunologic parameters in the CNS. These results indicate that hsp65, administered as a DNA vaccine, was not therapeutic for EAE.