1. C-Phycocyanin ameliorates experimental autoimmune encephalomyelitis and induces regulatory T cells
- Author
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Pentón-Rol, Giselle, Martínez-Sánchez, Gregorio, Cervantes-Llanos, Majel, Lagumersindez-Denis, Nielsen, Acosta-Medina, Emilio Felino, Falcón-Cama, Viviana, Alonso-Ramírez, Ruby, Valenzuela-Silva, Carmen, Rodríguez-Jiménez, Efraín, Llópiz-Arzuaga, Alexey, Marín-Prida, Javier, López-Saura, Pedro Antonio, Guillén-Nieto, Gerardo Emilio, and Pentón-Arias, Eduardo
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TREATMENT of encephalomyelitis , *T cells , *GENETIC regulation , *EXPERIMENTAL design , *GENE expression , *ANTIOXIDANTS , *BIOCHEMICAL mechanism of action , *INTERFERONS , *DRUG activation - Abstract
Abstract: For decades Experimental Autoimmune Encephalitis (EAE) has remained as an unsurpassed multiple sclerosis (MS) animal model. C-Phycocyanin (C-Pc) has been reported to exhibit pharmacological properties that may be expected to symptomatically improve EAE and MS. However, in this paper we reveal a basic underlying mechanism that may provide a new approach to the rationale of the overall beneficial effect of this natural antioxidant. We demonstrate that C-Pc is able to trigger mechanisms preventing or downgrading EAE expression and induces a regulatory T cell (Treg) response, in peripheral blood mononuclear cells (PBMC) from MS patients. These results agree with reports suggesting that Treg limit acute MS attacks and that C-Pc may act as a neuroprotector and thereby reverts the organic and functional damage in neurodegenerative disorders of the central nervous system (CNS). Moreover, evidence is provided on the antioxidant activity of C-Pc within the CNS, intended to improve the myelin and axonal damage of EAE induced Lewis rats. Our results indicate that specific Treg activation may represent a central and essential mechanism in supporting the therapeutic potential of C-Pc for MS and may lead to new and more effective therapies; this property would then complement and enhance other proven active principles such as interferons (IFN), giving rise to combined therapies. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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