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Anti-thrombin antibodies are autoantibodies directed against thrombin that may constitute a fraction of lupus anticoagulant and are seen an increased levels in systemic lupus erythematosus.
Additional recommended knowledge
In mammals, there is normally occurring anti-thrombrin activity (antithrombin III), which can be distinquished from autoimmune anti-thrombin. Anti-thrombin antibodies can react with both types of thrombin in the antithrombin-thrombin complex. Antibodies (IgG) against thrombin can strongly inhibit its activity. Inhibitory anti-thrombin antibodies can be divided into 2 groups, those that inhibit coagulation activity and those the inhibit coagulation and amidase activity. Autoimmune anti-thrombin was also found to inhibit the binding of antithrombin III to thrombin. Such activities are more often found with primary biliary cirrhosis. Multiple studies have shown, however, that despite autoimmune anti-thrombin throbin inhibitory activity, these antibodies correlate with thrombotic events, so that they may also perturb the regulation of coagalatory factors.
Other than antibodies to thrombin, antibodies to vascular heparin sulfate appear to interfere with antithrombin-thrombin interaction.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Anti-thrombin_antibodies". A list of authors is available in Wikipedia.|