Preparation of monoclonal antibodies to hirudin and hirudin peptides. A method for studying the hirudin-thrombin interaction
نویسندگان
چکیده
منابع مشابه
Catabolism of hirudin and thrombin-hirudin complexes in the rat.
The metabolic fate of the anticoagulant protein, hirudin, and its complex with thrombin are presently unknown. Therefore we have labelled hirudin and human thrombin-hirudin complex with the residualizing label dilactitol-125I-tyramine (*I-DLT) in order to identify their tissue sites of catabolism in the rat. The rapid plasma clearance of hirudin after intravenous injection was unaffected by *I-...
متن کاملThe direct thrombin inhibitor hirudin.
This review discusses the pharmacology and clinical applications of hirudin, a bivalent direct thrombin inhibitor (DTI). Besides the current major indication for hirudin--anticoagulation of patients with heparin-induced thrombocytopenia (HIT)--the experience with hirudin in other indications, especially acute coronary syndromes, are briefly presented. Hirudins have been formally studied prior t...
متن کاملStability of Hirudin, a Thrombin-specific Inhibitor
Hirudin is a 65-amino acid polypeptide with three disulfide linkages. It is stable under extreme pH (1.4712.9), high temperature (95 “C), and in the presence of denaturants (6 M guanidinium chloride or 8 M urea). The thrombin inhibitory activity of hirudin remains unaffected even after cleavage of an internal peptide bond ( L y ~ ~ ‘ A s n ~ ~ ) . One condition which effectively and irreversibl...
متن کاملGeneration of anti-hirudin antibodies in heparin-induced thrombocytopenic patients treated with r-hirudin.
BACKGROUND Hirudin is a small protein with strong thrombin inhibition that may be antigenic. The generation and disappearance of anti-hirudin antibodies were investigated in patients with heparin-induced thrombocytopenia who were treated with recombinant hirudin (r-hirudin) for >/=5 days. METHODS AND RESULTS The IgA, IgE, IgG, and IgM isotypes of anti-hirudin antibodies were determined by ELI...
متن کاملAnticoagulant activity of synthetic hirudin peptides.
Synthetic peptides based on the COOH-terminal 21 residues of hirudin were prepared in order to 1) evaluate the role of this segment in hirudin action toward thrombin, 2) define the shortest peptide derivative with anticoagulant activity, and 3) investigate the role of tyrosine sulfation in the peptides' inhibitory activities. A hirudin derivative of 20 amino acids, Hir45-64 (derived from residu...
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ژورنال
عنوان ژورنال: European Journal of Biochemistry
سال: 1990
ISSN: 0014-2956,1432-1033
DOI: 10.1111/j.1432-1033.1990.tb15424.x