Patents by Inventor Sumedha D. Jayasena

Sumedha D. Jayasena has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8470794
    Abstract: Methods and compositions relating to nucleic acids targeting certain miRNA molecules are disclosed. The nucleic acids are useful, for example, in methods of increasing the expression and/or secretion of EPO and treating various disease states including anemia, hemophilia, and/or sickle cell disease.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: June 25, 2013
    Assignee: Amgen Inc.
    Inventors: Sumedha D. Jayasena, Susan Swift
  • Publication number: 20100296630
    Abstract: Methods and compositions relating to nucleic acids targeting certain miRNA molecules are disclosed. The nucleic acids are useful, for example, in methods of increasing the expression and/or secretion of EPO and treating various disease states including anemia, hemophilia, and/or sickle cell disease.
    Type: Application
    Filed: October 1, 2008
    Publication date: November 25, 2010
    Applicant: Amgen Inc.
    Inventors: Sumedha D. Jayasena, Susan Swift
  • Publication number: 20090105174
    Abstract: Methods and compositions relating to nucleic acids targeting certain miRNA molecules are disclosed. The nucleic acids are useful in methods of increasing nuclear concentration of FKHR protein, decreasing cell viability, and treating cancer.
    Type: Application
    Filed: April 18, 2008
    Publication date: April 23, 2009
    Applicant: AMGEN INC.
    Inventor: Sumedha D. Jayasena
  • Publication number: 20030077646
    Abstract: A method is described for generating blended nucleic acid ligands containing non-nucleic acid functional units. Specifically, a SELEX identified RNA ligand to the integrin gpIIbIIIa is conjugated to the peptide Gly-Arg-Gly-Asp-Thr-Pro (SEQ ID NO: 1). This blended RNA ligand inhibits the biological activity of gpIIbIIIa with high specificity. Also described is a single-stranded DNA ligand to elastase coupled to N-methoxysuccinyl-Ala-Ala-Pro-Val-chloromethyl ketone (SEQ ID NO: 2). This elastase blended nucleic acid ligand inhibits the biological activity of elastase.
    Type: Application
    Filed: October 2, 2002
    Publication date: April 24, 2003
    Applicant: GILEAD SCIENCES, INC.
    Inventors: Greg Biesecker, Sumedha D. Jayasena, Larry Gold, Drew Smith, Gary P. Kirschenheuter
  • Publication number: 20020037506
    Abstract: This invention discloses a novel aptamer based two-site binding sandwich assay, employing nucleic acid ligands as capture and/or reporter molecules.
    Type: Application
    Filed: April 18, 2001
    Publication date: March 28, 2002
    Inventors: Yun Lin, James R. Heil, Sumedha D. Jayasena
  • Patent number: 6083696
    Abstract: A method is described for generating blended nucleic acid ligands containing non-nucleic acid functional units. Specifically, a SELEX identified RNA ligand to the integrin gpIIbIIIa is conjugated to the peptide Gly-Arg-Gly-Asp-Thr-Pro (SEQ ID NO:1). This blended RNA ligand inhibits the biological activity of gpIIbIIIa with high specificity. Also described is a single-stranded DNA ligand to elastase coupled to N-methoxysuccinyl-Ala-Ala-Pro-Val-chloromethyl (SEQ ID NO:3) ketone. This elastase blended nucleic acid ligand inhibits the biological activity of elastase.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: July 4, 2000
    Assignee: NeXstar Pharmaceuticals, Inc.
    Inventors: Greg Biesecker, Sumedha D. Jayasena, Larry Gold, Drew Smith, Gary Kirschenheuter
  • Patent number: 6063612
    Abstract: The present invention describes the generation of site-directed RNA cleaving agents. These agents consist of RNA-binding proteins, or polypeptides derived thereof, which are modified to contain a moiety capable of cleaving RNA backbones. Alternatively, the agents are oligonucleotides having nuclease resistant backbones to which a moiety capable of cleaving RNA backbones has been attached. The present invention also describes a method of cleaving target RNA substrates using the cleaving agents described herein. Further, the invention describes a method for inhibiting RNA virus expression in infected cells.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: May 16, 2000
    Assignee: SRI International
    Inventors: Sumedha D. Jayasena, Brian H. Johnston
  • Patent number: 5874557
    Abstract: High-affinity oligonucleotide ligands to the thermostable Taq polymerase and Tth polymerase are disclosed. Specifically disclosed are DNA ligands having the ability to bind to the Taq and Tth polymerases and the methods for obtaining such ligands. The ligands are capable of inhibiting polymerases at ambient temperatures.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 23, 1999
    Assignee: NeXstar Pharmaceuticals, Inc.
    Inventors: Larry Gold, Sumedha D. Jayasena
  • Patent number: 5874218
    Abstract: This invention discloses novel detection methods for determining the presence of a target compound in a substance using nucleic acid ligands as detection molecules. Specifically, the substance is bound to a solid support matrix, such as those used in blot procedures, and detection of the target molecule is accomplished using the affinity and specificity of nucleic acid ligands to the target molecule. The method utilized herein for identifying and preparing said nucleic acid ligands is called SELEX. The method of the present invention is additionally useful to isolate the target compounds from the various substances.
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: February 23, 1999
    Assignee: NeXstar Pharmaceuticals, Inc.
    Inventors: Dan Drolet, Sumedha D. Jayasena, Larry Gold
  • Patent number: 5849890
    Abstract: Methods are described for the identification and preparation of nucleic acid ligands to CG-related glycoprotein hormones. Included in the invention are specific RNA ligands to hCG and hTSH identified by the SELEX method.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 15, 1998
    Assignee: NeXstar Pharmaceuticals, Inc.
    Inventors: Larry Gold, Sumedha D. Jayasena, Dan Nieuwlandt, Ken Davis
  • Patent number: 5837456
    Abstract: Methods are described for the identification and preparation of nucleic acid ligands to CG-related glycoprotein hormones. Included in the invention are specific RNA ligands to hCG and hTSH identified by the SELEX method.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 17, 1998
    Assignee: NeXstar Pharmaceuticals, Inc.
    Inventors: Larry Gold, Sumedha D. Jayasena, Dan Nieuwlandt, Ken Davis
  • Patent number: 5795721
    Abstract: Methods are described for the identification and preparation of high-affinity nucleic acid ligands to Transcripion Regulatory Factors, specifically ICP4. Included in the invention are specific ssDNA and RNA ligands to ICP4 identified by the SELEX method.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: August 18, 1998
    Assignee: NeXstar Pharmaceuticals, Inc.
    Inventors: Ross S. Rabin, Sumedha D. Jayasena, Larry Gold
  • Patent number: 5789163
    Abstract: This invention discloses novel immunoassay termed an ELONA, employing nucleic acid ligands as capture molecules and/or detector molecules.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 4, 1998
    Assignee: NeXstar Pharmaceuticals, Inc.
    Inventors: Dan W. Drolet, Sumedha D. Jayasena, Larry Gold
  • Patent number: 5763173
    Abstract: This invention discloses high-affinity oligonucleotide ligands to the thermostable Taq polymerase and Tth polymerase. Specifically, this invention discloses DNA ligands having the ability to bind to the Taq and Tth polymerases and the methods for obtaining such ligands. The ligands are capable of inhibiting polymerases at ambient temperatures.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 9, 1998
    Assignee: NeXstar Pharmaceuticals, Inc.
    Inventors: Larry Gold, Sumedha D. Jayasena
  • Patent number: 5734034
    Abstract: Methods are described for the identification and preparation of nucleic acid ligands to human neutrophil elastase. Included in the invention are specific RNA and DNA ligands to elastase identified by the SELEX method.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: March 31, 1998
    Assignee: NeXstar Pharmaceuticals, Inc.
    Inventors: Sumedha D. Jayasena, Larry Gold
  • Patent number: 5693502
    Abstract: This invention discloses high-affinity oligonucleotide ligands to the thermostable Taq polymerase and Tth polymerase. Specifically, this invention discloses DNA ligands having the ability to bind to the Taq and Tth polymerases and the methods for obtaining such ligands. The ligands are capable of inhibiting polymerases at ambient temperatures.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 2, 1997
    Assignee: NeXstar Pharmaceuticals, Inc.
    Inventors: Larry Gold, Sumedha D. Jayasena
  • Patent number: 5683867
    Abstract: A method is described for generating blended nucleic acid ligands containing non-nucleic acid functional units. Specifically, a SELEX identified RNA ligand to the integrin gpIIbIIIa is conjugated to the peptide Gly-Arg-Gly-Asp-Thr-Pro (SEQ ID NO:1). This blended RNA ligand inhibits the biological activity of gpIIbIIIa with high specificity. Also described is a single-stranded DNA ligand to elastase coupled to N-methoxysuccinyl-Ala-Ala-Pro-Val-chloromethyl (SEQ ID NO:2) ketone. This elastase blended nucleic acid ligand inhibits the biological activity of elastase.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: November 4, 1997
    Assignee: NeXstar Pharmaceuticals, Inc.
    Inventors: Greg Biesecker, Sumedha D. Jayasena, Larry Gold, Drew Smith, Gary P. Kirschenheuter
  • Patent number: 5472841
    Abstract: Methods are described for the identification and preparation of nucleic acid ligands to human neutrophil elastase. Included in the invention are specific RNA and DNA ligands to elastase identified by the SELEX method.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: December 5, 1995
    Assignee: NeXstar Pharmaceuticals, Inc.
    Inventors: Sumedha D. Jayasena, Larry Gold