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Henrik Clausen, Holte DK

Henrik Clausen, Holte DK

Patent application numberDescriptionPublished
20080199845Compositions and Methods for Prolonging Survival of Platelets - The present invention provides modified platelets having a reduced platelet clearance and methods for reducing platelet clearance. Also provided are compositions for the preservation of platelets. The invention also provides methods for making a pharmaceutical composition containing the modified platelets and for administering the pharmaceutical composition to a mammal to mediate hemostasis.08-21-2008
20080206810Truncated St6galnaci Polypeptides and Nucleic Acids - The present invention features compositions and methods related to truncated mutants of ST6GalNAcI. In particular, the invention features truncated human, mouse, and chicken ST6GalNAcI polypeptides. The invention also features nucleic acids encoding such truncated polypeptides, as well as vectors, host cells, expression systems, and methods of expressing and using such polypeptides.08-28-2008
20080242846O-LINKED GLYCOSYLATION OF PEPTIDES - The present invention provides polypeptides that include an O-linked glycosylation site that is not present in the wild-type peptide. The polypeptides of the invention include glycoconjugates in which a species such as a water-soluble polymer, a therapeutic agent of a biomolecule is covalently linked through an intact O-linked glycosyl residue to the polypeptide. Also provided are methods of making the peptides of the invention and methods, pharmaceutical compositions containing the peptides and methods of treating, ameliorating or preventing diseased in mammals by administering an amount of a peptide of the invention sufficient to achieve the desired response.10-02-2008
20090028822Glycopegylated Interferon Alpha - The present invention provides IFN-α conjugates including IFN-α peptides and modifying groups such as PEG moieties. The IFN-α peptide and modifying group are linked via an intact glycosyl linking group interposed between and covalently attached to the IFN-α peptide and the modifying group. The IFN-α conjugates are formed from glycosylated peptides by the action of a glycosyltransferase. The glycosyltransferase ligates a modified sugar onto an amino acid or a glycosyl residue on the IFN-α peptide. Also provided are methods for preparing the IFN-α conjugates, methods for treating various disease conditions with the IFN-α conjugates, and pharmaceutical formulations including the IFN-α conjugates.01-29-2009
20090074737COMPOSITIONS AND METHODS FOR PROLONGING SURVIVAL OF PLATELETS - The present invention provides modified platelets having a reduced platelet clearance and methods for reducing platelet clearance. Also provided are compositions for the preservation of platelets. The invention also provides methods for making a pharmaceutical composition containing the modified platelets and for administering the pharmaceutical composition to a mammal to mediate hemostasis.03-19-2009
20090104693UDP-GALACTOSE:BETA-DGALACTOSE-R4-ALPHA-D-GALACTOSYLTRANSFERASE, ALPHA4GAL-T1 - A novel gene defining a novel enzyme UDP-galactose: β-D-galactose-R 4-α-D-galactosyltransferase, termed α4Gal-T1, with unique enzymatic properties is disclosed. The invention provides isolated DNA molecules and DNA constructs encoding α4Gal-T1 and derivatives thereof by way of amino acid deletion, substitution or insertion exhibiting α4Gal-T1 activity, as well as cloning and expression vectors including such DNA, host cells comprising DNA encoding α4Gal-T1, and recombinant methods for providing α4Gal-T1. The enzyme α4Gal-T1 and α4Gal-active derivatives thereof are disclosed. Further, the invention discloses methods of obtaining α1, 4galactosyl glycosylated glycosphingolipids by use of an enzymatically active α4Gal-T1 protein thereof or by using cells stably transfected with a vector including DNA encoding an enzymatically active α4Gal-T1 protein as an expression system for recombinant production of such glycosphingolipids. Also a method for the identification of DNA sequence variations in the α4Gal-T1-coding exon by PCR, and detecting the presence of DNA sequence variation, are disclosed.04-23-2009
20090155763COMPOSITIONS AND METHODS FOR PROLONGING SURVIVAL OF PLATELETS - The present invention provides modified platelets having a reduced platelet clearance and methods for reducing platelet clearance. Also provided are compositions for the preservation of platelets. The invention also provides methods for making a pharmaceutical composition containing the modified platelets and for administering the pharmaceutical composition to a mammal to mediate hemostasis.06-18-2009
20090169509O-linked glycosylation of peptides - The present invention provides polypeptides that include an O-linked glycosylation site that is not present in the wild-type peptide. The polypeptides of the invention include glycoconjugates in which a species such as a water-soluble polymer, a therapeutic agent of a biomolecule is covalently linked through an intact O-linked glycosyl residue to the polypeptide. Also provided are methods of making the peptides of the invention and methods, pharmaceutical compositions containing the peptides and methods of treating, ameliorating or preventing diseased in mammals by administering an amount of a peptide of the invention sufficient to achieve the desired response.07-02-2009
20090203579Glycopegylated Granulocyte Colony Stimulating Factor - The present invention provides conjugates between Granulocyte Colony Stimulating Factor and PEG moieties. The conjugates are linked via an intact glycosyl linking group that is interposed between and covalently attached to the peptide and the modifying group. The conjugates are formed from both glycosylated and unglycosylated peptides by the action of a glycosyltransferase. The glycosyltransferase ligates a modified sugar moiety onto either an amino acid or glycosyl residue on the peptide. Also provided are pharmaceutical formulations including the conjugates. Methods for preparing the conjugates are also within the scope of the invention.08-13-2009
20090220474NOVEL A-GALACTOSIDASES - This invention relates to novel α-galactosidases for the enzymatic removal of the immunodominant monosaccharides on blood products and tissues. Specifically this invention provides a novel family of α3 glycosidases, used for the enzymatic removal of type B antigens from blood group B and AB reactive blood products, and the GaIiIi antigen from non-human animal tissues, thereby converting these to non-immunogenic cells and tissues suitable for transplantation.09-03-2009
20100034825GENERATION OF A CANCER-SPECIFIC IMMUNE RESPONSE TOWARD MUC1 AND CANCER SPECIFIC MUC1 ANTIBODIES - The present invention provides a method for inducing a cancer specific immune response against MUC1 using an immunogenic glycopeptide. Other aspects of the invention are a pharmaceutical composition comprising the immunogenic glycopeptide and a cancer vaccine comprising the immunogenic glycopeptide. Another aspect is an antibody generated using the immunogenic glycopeptide and the use of said antibody in therapy and diagnosis.02-11-2010
20110014170NOVEL ALPHA-GALACTOSIDASES - This invention relates to novel α-galactosidases for the enzymatic removal of the immunodominant monosaccharides on blood products and tissues. Specifically this invention provides a novel family of α3 glycosidases, used for the enzymatic removal of type B antigens from blood group B and AB reactive blood products, and the Galili antigen from non-human animal tissues, thereby converting these to non-immunogenic cells and tissues suitable for transplantation.01-20-2011
20110045569ENZYMATIC CONVERSION OF BLOOD GROUP A, B, AND AB RED BLOOD CELLS USING ALPHA-N- ACETYLGALACTOSAMINIDASES AND ALPHA-GALACTOSIDASES WITH UNIQUE SUBSTRATE SPECIFICITIES AND KINETIC PROPERTIES - This invention relates to enzymatic removal of type A and B antigens from blood group A, B, and AB reactive cells in blood products, and thereby converting these to non-A and non-B reactive cells. The invention further relates to using unique α-N-acetylgalactosaminidases and α-galactosidases with superior kinetic properties for removing the immunodominant monosaccharides of the blood group A and B antigens and improved performance in enzymatic conversion of red blood cells. The preferred unique α-N-acetylgalactosaminidases and α-galactosidases exhibit the following characteristics: (i) exclusive, preferred or no less than 10% substrate specificity for the type A and B branched polysaccharide structures relative to measurable activity with simple mono- and disaccharide structures and aglycon derivatives hereof; (ii) optimal performance at neutral pH with blood group oligosaccharides and in enzymatic conversion of cells; and (iii) a favorable kinetic constant K02-24-2011

Patent applications by Henrik Clausen, Holte DK