期刊
EXPERIMENTAL NEUROLOGY
卷 210, 期 2, 页码 681-690出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.expneurol.2007.12.025
关键词
experimental autoimmune neuritis; Guillain-Barre syndrome; FTY720; lymphocytes; macrophages
Experimental autoimmune neuritis (EAN) is a T cell-mediated autoimmune demyelinating inflammatory disease of the peripheral nervous system (PNS). T cells and macrophages are essential for the initiation and development of EAN. FTY720 acts as an agonist of sphingosine-1-phosphate receptors, resulting in inhibition of lymphocyte egress from secondary lymphoid tissues and thymocytes from thymus. This investigation describes the immunosuppressive effects of FTY720 in EAN, the animal model of autoimmune neuropathies. FTY720 (1 mg/kg body weight) completely suppressed paraparesis if administrated from the day of immunization. Furthermore, FTY720 greatly reduced the severity and duration of EAN even when administrated after the appearance of the first neurological sign. T cell, B cell, and macrophage infiltration and demyelination of sciatic nerves were significantly decreased in FTY720-treated EAN. Therefore, FTY720 might be a potential candidate for treatment of inflammatory neuropathies. (C) 2007 Elsevier Inc. All rights reserved.
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