Patents Assigned to Transkaryotic Therapies, Inc.
  • Patent number: 7122354
    Abstract: DNA molecules comprising a sequence encoding the signal peptide of hGH linked to a heterologous protein and related cells, methods and fusion proteins.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: October 17, 2006
    Assignee: Transkaryotic Therapies, Inc.
    Inventors: Richard F. Selden, Marianne Borowski, Frances P. Gillispie, Carol M. Kinoshita, Douglas A. Treco, Melanie D. Williams
  • Patent number: 6924365
    Abstract: The present invention is directed to a synthetic nucleic acid sequence which encodes a protein wherein at least one non-common codon or less-common codon is replaced by a common codon. The synthetic nucleic acid sequence can include a continuous stretch of at least 90 codons all of which are common codons.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: August 2, 2005
    Assignee: Transkaryotic Therapies, Inc.
    Inventors: Allan M. Miller, Douglas A. Treco, Richard F Selden
  • Patent number: 6858578
    Abstract: Chimeric proteins useful in transporting a selected substance present in extracellular fluids, such as blood or lymph, into cells; quantitative assays for the selected substance using chimeric proteins; DNA encoding the chimeric proteins; plasmids which contain DNA encoding the chimeric proteins; mammalian cells, modified to contain DNA encoding the chimeric proteins, which express and, optionally, secrete the chimeric proteins; a method of producing the chimeric proteins; a method of isolating the chimeric proteins; a method of using the chimeric proteins to assay the selected substance; and a method of reducing extracellular levels of the selected substance through administration of the chimeric protein, which results in transport of the selected substance into cells.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: February 22, 2005
    Assignee: Transkaryotic Therapies, Inc.
    Inventors: Michael W. Heartlein, Jeffrey F. Lemontt, Michael F. Concino
  • Patent number: 6846676
    Abstract: The invention provides primary and secondary cells that are transfected with a nucleic acid molecule that encodes erythropoietin, clonal or heterogenous strains of such cells, and methods of producing these cell strains.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: January 25, 2005
    Assignee: Transkaryotic Therapies, Inc.
    Inventors: Richard F. Selden, Douglas Treco, Michael W. Heartlein
  • Publication number: 20040229250
    Abstract: This invention relates to methods and compositions for the diagnosis and treatment of Multiple Sulfatase Deficiency (MSD) as well as other sulfatase deficiencies. More specifically, the invention relates to isolated molecules that modulate post-translational modifications on sulfatases. Such modifications are essential for proper sulfatase function.
    Type: Application
    Filed: February 10, 2004
    Publication date: November 18, 2004
    Applicant: Transkaryotic Therapies, Inc.
    Inventors: Kurt von Figura, Bernhard Schmidt, Thomas Dierks, Michael W. Heartlein, Maria Pia Cosma, Andrea Ballabio
  • Patent number: 6692737
    Abstract: The present invention relates to transfected primary and secondary somatic cells of vertebrate origin, particularly mammalian origin, transfected with exogenous genetic material (DNA) which encodes a desired (e.g., a therapeutic) product or is itself a desired (e.g., therapeutic) product, methods by which primary and secondary cells are transfected to include exogenous genetic material, methods of producing clonal cell strains or heterogenous cell strains, methods of gene therapy in which the transfected primary or secondary cells are used, and methods of producing antibodies using the transfected primary or secondary cells.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: February 17, 2004
    Assignee: Transkaryotic Therapies, Inc.
    Inventors: Richard F Selden, Douglas Treco, Michael W. Heartlein
  • Patent number: 6670178
    Abstract: The present invention relates to transfected primary and secondary somatic cells of vertebrate origin, particularly mammalian origin, transfected with exogenous genetic material (DNA) that encodes erythropoietin or an insulinotropin (e.g., derivatives of glucagon-like peptide 1 (GLP-1)), methods by which primary and secondary cells are transfected to include exogenous genetic material encoding erythropoietin or an insulinotropin, methods of producing clonal cell strains or heterogenous cell strains that express erythropoietin or an insulinotropin, methods of gene therapy, in which the transfected primary or secondary cells are used, and methods of producing antibodies using the transfected primary or secondary cells.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: December 30, 2003
    Assignee: Transkaryotic Therapies, Inc.
    Inventors: Richard F Selden, Douglas Treco, Michael W. Heartlein
  • Publication number: 20030152560
    Abstract: A therepeutic method whereby an individual suspected of having an &agr;-galactosidase A deficiency, such as Fabry disease, is treated either with (1) human cells that have been genetically modified to overexpress and secrete human &agr;-gal A, or (2) purified human &agr;-gal A obtained from cultured, genetically modified human cells.
    Type: Application
    Filed: December 12, 2002
    Publication date: August 14, 2003
    Applicant: Transkaryotic Therapies Inc., a Massachusetts corporation
    Inventors: Richard F. Selden, Marianne Borowski, Frances P. Gillispie, Carol M. Kinoshita, Douglas A. Treco, Melanie D. Williams
  • Publication number: 20030147868
    Abstract: The present invention relates to transfected primary, secondary, and immortalized cells of vertebrate origin particularly mammalian origin, transfected with exogenous genetic material (DNA) which encodes a desired (e.g., a therapeutic) product or is itself a desired (e.g., therapeutic) product, methods by which primary, secondary and immortalized cells are transfected to include exogenous genetic material, including DNA targeting by homologous recombination, methods for the activation and amplification of endogenous cellular genes, methods by which cells useful for large-scale protein production can be obtained, methods of producing clonal cell strains or heterogenous cell strains, and methods of gene therapy in which transfected primary, secondary or immortalized cells are used.
    Type: Application
    Filed: November 18, 2002
    Publication date: August 7, 2003
    Applicant: Transkaryotic Therapies, Inc. a Delaware corporation
    Inventors: Douglas Treco, Michael W. Heartlein, Richard F. Selden
  • Patent number: 6582391
    Abstract: An implantable device having a body of matrix material made up of insoluble collagen fibrils, and disposed therewithin (a) a plurality of vertebrate cells; and (b) a plurality of microspheres each of which consists primarily of one or more of the following materials: collagen, polystyrene, dextran, polyacrylamide, cellulose, calcium alginate, latex, polysulfone, or glass.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: June 24, 2003
    Assignee: Transkaryotic Therapies, Inc.
    Inventor: Rochelle Mineau-Hanschke
  • Publication number: 20030113894
    Abstract: The invention provides highly purified &agr;-Gal A, and various methods for purifying it; &agr;-Gal A preparations with altered charge and methods for making those preparations; &agr;-Gal A preparations that have an extended circulating half-life in a mammalian host, and methods for making same; and methods and dosages for administering an &agr;-Gal A preparation to a subject.
    Type: Application
    Filed: June 10, 2002
    Publication date: June 19, 2003
    Applicant: Transkaryotic Therapies, Inc., a Delaware corporation
    Inventors: Richard F. Selden, Marianne Borowski, Carol M. Kinoshita, Douglas A. Treco, Melanie D. Williams, Thomas J. Schuetz, Peter F. Daniel
  • Patent number: 6569681
    Abstract: The invention features a method of promoting an alteration at a selected site in a target DNA, e.g., in the chromosomal DNA of a cell. The method includes providing, at the site: (a) a double stranded DNA sequence which includes a selected DNA sequence; (b) an agent which enhances homologous recombination, e.g., a Rad52 protein or a functional fragment thereof; and (c) an agent which inhibits non-homologous end joining, e.g., an agent which inactivates Ku such as an anti-Ku antibody or a Ku-binding oligomer or polymer, and allowing the alteration to occur. The agent which inhibits non-homologous end joining, e.g., a Ku inactivating agent such as an anti-Ku antibody, is preferably provided locally. Components (a), (b), and (c) can be introduced together, which is preferred, or separately.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: May 27, 2003
    Assignee: Transkaryotic Therapies, Inc.
    Inventor: Evguenii Ivanov
  • Patent number: 6565844
    Abstract: The present invention relates to DNA constructs that alter the expression of a targeted gene in a cell when the DNA construct is homologously recombined with a target site within the chromosomal DNA of the cell, as well as to a cell into which has been incorporated a new transcription unit containing an exogenous regulatory sequence operatively linked to an endogenous gene of the cell's chromosomal DNA. These constructs and cells can be used in a method of altering expression of the targeted gene.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: May 20, 2003
    Assignee: Transkaryotic Therapies, Inc.
    Inventors: Douglas Treco, Michael W. Heartlein, Richard F Selden
  • Patent number: 6566099
    Abstract: A therapeutic method whereby an individual suspected of having an &agr;-galactosidase A deficiency, such as Fabry disease, is treated either with (1) human cells that have been genetically modified to overexpress and secrete human &agr;-gal A, or (2) purified human &agr;-gal A obtained from cultured, genetically modified human cells.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: May 20, 2003
    Assignee: Transkaryotic Therapies, Inc.
    Inventors: Richard F. Selden, Marianne Borowski, Frances P. Gillispie, Carol M. Kinoshita, Douglas A. Treco, Melanie D. Williams
  • Publication number: 20030091545
    Abstract: A composition having a body of matrix material made up of insoluble collagen fibrils, and disposed therewithin
    Type: Application
    Filed: May 31, 2002
    Publication date: May 15, 2003
    Applicant: Transkaryotic Therapies, Inc., Delaware Corporation
    Inventor: Rochelle Mineau-Hanschke
  • Publication number: 20030077260
    Abstract: An implantable device having a body of matrix material made up of insoluble collagen fibrils, and disposed therewithin
    Type: Application
    Filed: July 2, 2002
    Publication date: April 24, 2003
    Applicant: Transkaryotic Therapies, Inc.
    Inventor: Rochelle Mineau-Hanschke
  • Publication number: 20030077806
    Abstract: The invention provides highly purified &agr;-Gal A, and various methods for purifying it; &agr;-Gal A preparations with altered charge and methods for making those preparations; &agr;-Gal A preparations that have an extended circulating half-life in a mammalian host, and methods for making same; and methods and dosages for administering an &agr;-Gal A preparation to a subject.
    Type: Application
    Filed: June 7, 2002
    Publication date: April 24, 2003
    Applicant: Transkaryotic Therapies, Inc., a Delaware corporation
    Inventors: Richard F. Selden, Marianne Borowski, Carol M. Kinoshita, Douglas A. Treco, Melanie D. Williams, Thomas J. Schuetz, Peter F. Daniel
  • Patent number: 6537542
    Abstract: The present invention relates to a method of gene or DNA targeting in cells of vertebrate, particularly mammalian, origin. That is, it relates to a method of introducing DNA into primary or secondary cells of vertebrate origin through homologous recombination or targeting of the DNA, which is introduced into genomic DNA of the primary or secondary cells at a preselected site. The present invention further relates to primary or secondary cells, referred to as homologously recombinant (HR) primary or secondary cells, produced by the present method and to uses of the homologously recombinant primary or secondary cells. The present invention also relates to a method of turning on a gene present in primary cells, secondary cells or immortalized cells of vertebrate origin, which is normally not expressed in the cells or is not expressed at significant levels in the cells.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: March 25, 2003
    Assignee: Transkaryotic Therapies, Inc.
    Inventors: Douglas Treco, Michael W. Heartlein, Richard F Selden
  • Patent number: 6531124
    Abstract: The present invention relates to transfected primary and secondary somatic cells of vertebrate origin, particularly mammalian origin, transfected with exogenous genetic material (DNA) that encodes erythropoietin or an insulinotropin (e.g., derivatives of glucagon-like peptide 1 (GLP 1)), methods by which primary and secondary cells are transfected to include exogenous genetic material encoding erythropoietin or an insulinotropin, methods of producing clonal cell strains or heterogenous cell strains that express erythropoietin or an insulinotropin, methods of gene therapy, in which the transfected primary or secondary cells are used, and methods of producing antibodies using the transfected primary or secondary cells.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: March 11, 2003
    Assignee: Transkaryotic Therapies, Inc.
    Inventors: Richard F Selden, Douglas Treco, Michael W. Heartlein
  • Patent number: 6472181
    Abstract: An implantable device having a body of matrix material made up of insoluble collagen fibrils, and disposed therewithin (a) a plurality of vertebrate cells; and (b) a plurality of microspheres each of which consists primarily of one or more of the following materials: collagen, polystyrene, dextran, polyacrylamide, cellulose, calcium alginate, latex, polysulfone, or glass.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: October 29, 2002
    Assignee: Transkaryotic Therapies, Inc.
    Inventor: Rochelle Mineau-Hanschke