Journal
NATURE REVIEWS NEUROLOGY
Volume 8, Issue 7, Pages 380-390Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nrneurol.2012.99
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Funding
- NIH [RO1NS077851, RO1MH094741]
- National Cancer Institute [RO1CA089054]
- Fundacio la Marato TV3
- Fondo de Investigaciones Sanitarias (FIS) [PI11/01780]
- Euroimmun
- National Organization for Rare Disorders
- Dana Foundation
- ICREA Funding Source: Custom
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The discovery of disorders that are associated with antibodies to neuronal cell-surface proteins has led to a paradigm shift in our understanding of CNS autoimmunity. These disorders can occur in patients with or without cancer-often children or young adults who develop psychosis, catatonic or autistic features, memory problems, abnormal movements, or seizures that were previously considered idiopathic. The autoantigens in such cases have crucial roles in synaptic transmission, plasticity and peripheral nerve excitability. Patients can be comatose or encephalopathic for months and yet fully recover with supportive care and immunotherapy. By contrast, disorders in which the antibodies target intracellular antigens, and in which T-cell-mediated irreversible neuronal degeneration occurs, show a considerably poorer response to treatment. In this article, we review the various targets of neuronal antibodies, focusing predominantly on autoantigens located on the cell surface or synapses-namely, N-methyl-D-aspartate receptors, alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors, gamma-aminobutyric acid receptors, leucine-rich glioma-inactivated protein 1, contactin-associated protein-like 2, and metabotropic glutamate receptors. We also provide an algorithm to identify and assess antibodies that bind to cell-surface and synaptic antigens.
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