IgG marker of optic-spinal multiple sclerosis binds to the aquaporin-4 water channel

被引:1724
作者
Lennon, VA [1 ]
Kryzer, TJ
Pittock, SJ
Verkman, AS
Hinson, SR
机构
[1] Mayo Clin, Coll Med, Dept Immunol, Rochester, MN 55905 USA
[2] Mayo Clin, Coll Med, Dept Neurol, Rochester, MN 55905 USA
[3] Mayo Clin, Coll Med, Dept Lab Med & Pathol, Rochester, MN 55905 USA
[4] Univ Calif San Francisco, Cardiovasc Res Inst, San Francisco, CA 94143 USA
关键词
D O I
10.1084/jem.20050304
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Neuromyelitis optica (NMO) is an inflammatory demyelinating disease that selectively affects optic nerves and spinal cord. It is considered a severe variant of multiple sclerosis (MS), and frequently is misdiagnosed as MS, but prognosis and optimal treatments differ. A serum immunoglobulin G autoantibody (NMO-IgG) serves as a specific marker for NMO. Here we show that NMO-IgG binds selectively to the aquaporin-4 water channel, a component of the dystroglycan protein complex located in astrocytic foot processes at the blood-brain barrier. NMO may represent the first example of a novel class of autoimmune channelopathy.
引用
收藏
页码:473 / 477
页数:5
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