| First Author | Natarajan C | Year | 2003 |
| Journal | J Immunol | Volume | 171 |
| Issue | 11 | Pages | 5743-50 |
| PubMed ID | 14634082 | Mgi Jnum | J:119331 |
| Mgi Id | MGI:3701763 | Doi | 10.4049/jimmunol.171.11.5743 |
| Citation | Bright JJ, et al. (2003) Peroxisome proliferator-activated receptor-gamma-deficient heterozygous mice develop an exacerbated neural antigen-induced Th1 response and experimental allergic encephalomyelitis. J Immunol 171(11):5743-50 |
| abstractText | Peroxisome proliferator-activated receptor-gamma (PPARgamma) is a nuclear receptor transcription factor that regulates cell growth, differentiation, and homeostasis. PPARgamma agonists are potent therapeutic agents for type 2 diabetes, obesity, and inflammation. Experimental allergic encephalomyelitis (EAE) is a Th1 cell-mediated inflammatory demyelinating autoimmune disease model of multiple sclerosis. We have shown recently that PPARgamma agonists inhibit EAE by blocking IL-12 production, IL-12 signaling, and neural Ag-induced Th1 differentiation. In this study, we show that the PPARgamma-deficient heterozygous mice develop an exacerbated EAE with prolonged clinical symptoms than the wild-type littermates, following immunization with myelin oligodendrocyte glycoprotein (MOG) p35-55 peptide. The exacerbation of EAE in PPARgamma(+/-) mice associates with an increased expansion of CD4(+) and CD8(+) T cells and expression of CD40 and MHC class II molecules in response to MOGp35-55 Ag. The PPARgamma(+/-) mice also showed an increase in T cell proliferation and Th1 response to MOGp35-55 Ag than the wild-type littermates. These findings suggest that PPARgamma be a critical physiological regulator of CNS inflammation and demyelination in EAE and perhaps multiple sclerosis and other Th1 cell-mediated autoimmune diseases. |
