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Updated: May 10, 2026
09:29
Induction of Paralysis and Visual System Injury in Mice by T Cells Specific for Neuromyelitis Optica Autoantigen Aquaporin-4
Published on: August 21, 2017
[Pathogenesis of neuromyelitis optica].
1Department of Multiple Sclerosis Therapeutics, Tohoku University Graduate School of Medicine.
Nihon Rinsho. Japanese Journal of Clinical Medicine
|June 20, 2013
Summary
Neuromyelitis optica (NMO) is an autoimmune astrocytopathy targeting aquaporin 4 (AQP4) channels. This condition causes severe optic neuritis and transverse myelitis, distinct from multiple sclerosis.
Area of Science:
- Neuroimmunology
- Neuropathology
Context:
- Neuromyelitis optica (NMO) is a severe autoimmune CNS disorder.
- NMO is characterized by optic neuritis and transverse myelitis.
- Pathology involves autoantibodies against aquaporin 4 (AQP4).
Purpose:
- To elucidate the autoimmune mechanisms in NMO.
- To differentiate NMO from other demyelinating diseases like multiple sclerosis.
Summary:
- NMO features autoantibodies against AQP4, primarily at astrocyte foot processes.
- Active NMO lesions show loss of AQP4 and glial fibrillary acidic protein.
- Astrocytic damage is mediated by antibody and complement, requiring T-cell inflammation for CNS entry.
Impact:
- NMO is redefined as an autoimmune astrocytopathy.
- Distinguishes NMO from multiple sclerosis based on distinct pathophysiology.
- Highlights the role of AQP4 antibodies and astrocyte damage in NMO pathogenesis.
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