Test for the detection of anti-heparin antibodies

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...

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435 72, 435 792, 435 794, 435 13, 436531, 436513, 436506, 436821, G01N 3353

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active

057534454

ABSTRACT:
This invention pertains to a method of detecting, in a sample obtained from an individual, anti-heparin antibodies which inhibit the formation of the heparin accelerated antithrombin III-thrombin complex. In the present method, the presence of such anti-heparin antibodies are detected directly (by detecting the presence of anti-heparin antibodies themselves) or indirectly (by detecting the presence or formation of the heparin accelerated antithrombin III-thrombin complex). In one embodiment of the present method, antibodies which react with or interfere with the heparin pentasaccharide which binds antithrombin III in such a manner that binding to antithrombin III is inhibited are detected. In a specific embodiment of the present method, the anti-heparin antibody detected is one which reacts with or interferes with the disaccharide UA-2S/GlcNs-6 present in residues IV and V of the heparin pentasaccharide that binds antithrombin III.

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