51. Antiphospholipid Antibodies Overlapping in Isolated Neurological Syndrome and Multiple Sclerosis: Neurobiological Insights and Diagnostic Challenges
- Author
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Oriol Franch, Lidia Fernández-Paredes, Chiara D'Angelo, Marcella Reale, Alejandra Comins-Boo, Celia Oreja-Guevara, María Núñez-Beltrán, and Silvia Sánchez-Ramón
- Subjects
0301 basic medicine ,MS-like syndrome ,Disease ,Review ,lcsh:RC321-571 ,Pathogenesis ,03 medical and health sciences ,Cellular and Molecular Neuroscience ,0302 clinical medicine ,Antiphospholipid syndrome ,medicine ,Clinical significance ,vasculopathy ,lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry ,thrombosis ,business.industry ,Multiple sclerosis ,pathogenesis ,Autoantibody ,medicine.disease ,Thrombosis ,Venous thrombosis ,030104 developmental biology ,Immunology ,business ,antiphospholipid syndrome ,030217 neurology & neurosurgery ,Neuroscience - Abstract
Antiphospholipid syndrome (APS) is characterized by arterial and venous thrombosis, pregnancy morbidity and fetal loss caused by pathogenic autoantibodies directed against phospholipids (PL) and PL-cofactors. Isolated neurological APS may represent a significant diagnostic challenge, as epidemiological, clinical and neuroimaging features may overlap with those of multiple sclerosis (MS). In an open view, MS could be considered as an organ-specific anti-lipid (phospholipid and glycosphingolipid associated proteins) disease, in which autoreactive B cells and CD8+ T cells play a dominant role in its pathophysiology. In MS, diverse autoantibodies against the lipid-protein cofactors of the myelin sheath have been described, whose pathophysiologic role has not been fully elucidated. We carried out a review to select clinical studies addressing the prevalence of antiphospholipid (aPL) autoantibodies in the so-called MS-like syndrome. The reported prevalence ranged between 2% and 88%, particularly aCL and aβ2GPI, with predominant IgM isotype and suggesting worse MS prognosis. Secondarily, an updated summary of current knowledge on the pathophysiological mechanisms and events responsible for these conditions is presented. We draw attention to the clinical relevance of diagnosing isolated neurological APS. Prompt and accurate diagnosis and antiaggregant and anticoagulant treatment of APS could be vital to prevent or at least reduce APS-related morbidity and mortality.
- Published
- 2019