218 results about "Factor VIII vWF" patented technology

The invention relates to vWF cleaving entities having a molecular weight of 180 kD, 170 kD, 160 kD, 120 kD or 110 kD and an N-terminal amino acid sequence of AAGGILHLELLV, vWF cleaving complexes and methods for their production.

The present invention relates to modified nucleic acid sequences coding for coagulation factor VIII (FVIII) and for von Willebrand factor (VWF) as well as complexes thereof and their derivatives, recombinant expression vectors containing such nucleic acid sequences, host cells transformed with such recombinant expression vectors, recombinant polypeptides and derivatives coded for by said nucleic acid sequences which recombinant polypeptides and derivatives do have biological activities together with prolonged in vivo half-life and / or improved in vivo recovery compared to the unmodified wild-type protein. The invention also relates to corresponding FVIII sequences that result in improved expression yield. The present invention further relates to processes for the manufacture of such recombinant proteins and their derivatives. The invention also relates to a transfer vector for use in human gene therapy, which comprises such modified nucleic acid sequences.

The invention relates generally to the field of nucleic acids and more particularly to aptamers capable of binding to von Willebrand Factor useful as therapeutics in and diagnostics of thrombotic diseases and / or other diseases or disorders in which von Willebrand Factor mediated platelet aggregation has been implicated. The invention further relates to materials and methods for the administration of aptamers capable of binding to von Willebrand Factor.

This invention is intended to isolate and identify a vWF-specific cleaving protease.The vWF-specific cleaving protease cleaves a bond between residues Tyr 842 and Met 843 of vWF and comprises a polypeptide chain having Leu-Leu-Val-Ala-Val as a partial sequence, and more preferably comprises a polypeptide chain having the partial N-terminal amino acid sequence of a mature protein, Ala-Ala-Gly-Gly-Ile-Leu-His-Leu-Glu-Leu-Leu-Val-Ala-Val, and having a molecular weight of 105 to 160 kDa in SDS-PAGE under reducing or non-reducing conditions. Isolation and identification of this vWF-specific cleaving protease have led to the possibility of replacement therapy for patients having diseases resulting from a deficiency of the protease, such as thrombotic thrombocytopenic purpura.

The present invention provides long-term stable pharmaceutical formulations of recombinant von-Willebrand Factor (rVWF) and methods for making and administering said formulations.

The present invention provides novel purified and isolated nucleic acid sequences encoding procoagulant-active FVIII proteins. The nucleic acid sequences of the present invention encode amino acid sequences corresponding to known human FVIII sequences, wherein residue Phe3O9 is mutated. The nucleic acid sequences of the present invention also encode amino acid sequences corresponding to known human FVIII sequences, wherein the APC cleavage sites, Arg336 and Ile562, are mutated. The nucleic acid sequences of the present invention further encode amino acid sequences corresponding to known human FVIII sequences, wherein the B-domain is deleted, the von Willebrand factor binding site is deleted, a thrombin cleavage site is mutated and an amino acid sequence spacer is inserted between the A2- and A3-domains. Methods of producing the FVIII proteins of the invention, nucleotide sequences encoding such proteins, pharmaceutical compositions containing the nucleotide sequences or proteins, as well as methods of treating patients suffering from hemophilia, are also provided.

Methods of analyzing the electrophoretic mobility distribution of von Willebrand factor (vWF) multimers include providing a sample medium comprising a plurality vWF multimers. The vWF multimers are electrophoretically separated by electrohoretic mobility in the sample medium by subjecting said sample medium to an electric field to provide separated vWF multimers. The separated vWF multimers in the sample medium are exposed to a light source to produce scattered light. The scattered light is detected, and the electrophoretic mobility distribution of the separated vWF multimers is determined from the detected scattered light.