Journal
JOURNAL OF THE NEUROLOGICAL SCIENCES
Volume 408, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jns.2019.116576
Keywords
Antiganglioside antibodies; Gangliosides; Guillain-Barre syndrome; Polyradiculoneuropathy; Nodo-paranodopathies
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Gangliosides are sialylated glycosphingolipids, highly abundant in our nervous system. Antibodies targeting gangliosides are usually developed as a consequence of molecular mimicry following infections. Antiganglioside antibodies are implicated in many neurological disorders such as acute and chronic polyradiculoneuropathies which includes different variants of Guillain-Barre syndrome, chronic inflammatory demyelinating polyradiculoneuropathy and multifocal motor neuropathy. Presence of such antibodies in paraneoplastic peripheral neuropathy, neurodegenerative disorders, multiple sclerosis, myasthenia gravis and amyotrophic lateral sclerosis have also been reported. Recent evidence supports a role of antiganglioside antibodies in the pathogenesis of acute vestibular syndrome. Binding of antibodies to gangliosides on axonal membranes, nodes of Ranvier, myelin sheath components, Schwann cells, neuromuscular junctions or other neural cell surfaces may elicit inflammatory damage through complement-dependent and independent mechanisms, resulting in nerve conduction blocks and subsequent axonal degeneration. Gangliosides are essential for proper cell signaling, transduction and influences neuroplasticity, all of which are affected by autoimmune mediated damage. Better insight into the pathophysiological role of antiganglioside antibodies in different neurological diseases may improve their utility as diagnostic and prognostic biomarkers.
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