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The antiphospholipid syndrome (APS) is marked by autoantibodies that recognize anionic phospholipids in a cofactor-dependent manner. A role for complement has been implicated in the pathophysiology, however, elevations of complement activation markers have not been consistently demonstrated in clinical studies. We therefore designed a proof-of-principle study to determine whether complement activation...
The antiphospholipid syndrome (APS) is an enigmatic autoimmune disorder in which patients present with thrombosis and/or recurrent pregnancy losses together with laboratory evidence for the presence of autoantibodies in the blood that recognize proteins that bind to anionic phospholipids – the most important of which is β 2 -glycoprotein I (β 2 GPI). Earlier, we hypothesized that the...
Targeting of the annexin A5 anticoagulant shield may be a significant mechanism for thrombosis and pregnancy losses in APS. This may occur via high affinity antibodies that recognize phospholipid-binding proteins that are capable of interfering with the assembly of the annexin A5 shield on phospholipid surfaces or via direct recognition of annexin A5 by autoantibodies. In addition, antibodies against...
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