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Advances in the Pathophysiology of Thrombosis in Antiphospholipid Syndrome: Molecular Mechanisms and Signaling through Lipid Rafts

Journal

JOURNAL OF CLINICAL MEDICINE
Volume 12, Issue 3, Pages -

Publisher

MDPI
DOI: 10.3390/jcm12030891

Keywords

APS; beta 2-GPI; aPLs; lipid rafts; TLR4 pathways; therapeutic targets

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The pathological features of APS are caused by the activity of aPLs associated with vascular thrombosis and obstetric complications. These aPLs not only serve as disease markers, but also have a determining pathogenetic role in APS by activating cells and coagulation factors. This activation occurs through the interaction of aPLs with specific target receptors on the cell membrane known as lipid rafts.
The pathological features of antiphospholipid syndrome (APS) are related to the activity of circulating antiphospholipid antibodies (aPLs) associated with vascular thrombosis and obstetric complications. Indeed, aPLs are not only disease markers, but also play a determining pathogenetic role in APS and exert their effects through the activation of cells and coagulation factors and inflammatory mediators for the materialization of the thromboinflammatory pathogenetic mechanism. Cellular activation in APS necessarily involves the interaction of aPLs with target receptors on the cell membrane, capable of triggering the signal transduction pathway(s). This interaction occurs at specific microdomains of the cell plasma membrane called lipid rafts. In this review, we focus on the key role of lipid rafts as signaling platforms in the pathogenesis of APS, and propose this pathogenetic step as a strategic target of new therapies in order to improve classical anti-thrombotic approaches with new immunomodulatory drugs.

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