Hybrid human/animal factor VIII

Details Hybrid human/animal factor VIII Hybrid human/animal factor VIII

1995-06-07

1999-03-30

Jacobson, Dian C.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Peptide containing doai

514 2, 514834, 530383, 930100, A61K 3837, C07K 14755

Patent

active

058889744

ABSTRACT:
A hybrid procoagulant factor VIII is produced by isolation and recombination of human and other nonhuman mammalian factor VIII subunits or domains, or by genetic engineering of the human and animal factor VIII genes. Subunits or domains of factor VIII that have been purified from human or animal plasma are isolated, and hybrid human/animal factor VIII is produced by (1) mixing either animal heavy chain subunits with human light chain subunits or by mixing human heavy chain subunits with animal light chain subunits, thereby producing human light chain/animal heavy chain and human heavy chain/animal light chain hybrid molecules; or by (2) mixing one or more domains of one species with one or more domains of the other species. These hybrid molecules are isolated by ion exchange chromatography. Alternatively, recombinant DNA methods are used to change elements of animal factor VIII or human factor VIII to the corresponding elements of human factor VIII or animal factor VIII, respectively, to produce hybrid human/animal factor VIII. A recombinant hybrid equivalent factor VIII molecule is produced by substituting amino acid sequence having no known factor VIII sequence identity for specific amino acid sequence in the human or animal factor VIII. The hybrid factor VIII and hybrid equivalent factor VIII molecules are administered to patients having factor VIII deficiency.

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Koedam, J.A., e

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