Patents by Inventor Sumedha Jayasena

Sumedha 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).

  • Publication number: 20220220484
    Abstract: Wound healing is a complex homeostatic process in which several distinct types coordinate to repair a physical damage. Failure to close wounds contributes to the pathology of conditions like diabetes mellitus, particularly in the elderly. Presented herein are molecules, pharmaceutical compositions, and methods for applying small RNA oligonucleotide technology to wound healing. Small RNA oligonucleotide approaches as disclosed herein provide a therapeutic strategy for improving both basal and pathological wound healing.
    Type: Application
    Filed: March 28, 2022
    Publication date: July 14, 2022
    Inventors: Anne DALLAS, Heini ILVES, Sumedha JAYASENA, Brian H. JOHNSTON
  • Patent number: 11319538
    Abstract: Wound healing is a complex homeostatic process in which several distinct types coordinate to repair a physical damage. Failure to close wounds contributes to the pathology of conditions like diabetes mellitus, particularly in the elderly. Presented herein are molecules, pharmaceutical compositions, and methods for applying small RNA oligonucleotide technology to wound healing. Small RNA oligonucleotide approaches as disclosed herein provide a therapeutic strategy for improving both basal and pathological wound healing.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: May 3, 2022
    Assignee: SOMAGENICS, INC.
    Inventors: Anne Dallas, Heini Ilves, Sumedha Jayasena, Brian H. Johnston
  • Publication number: 20190390202
    Abstract: Wound healing is a complex homeostatic process in which several distinct types coordinate to repair a physical damage. Failure to close wounds contributes to the pathology of conditions like diabetes mellitus, particularly in the elderly. Presented herein are molecules, pharmaceutical compositions, and methods for applying small RNA oligonucleotide technology to wound healing. Small RNA oligonucleotide approaches as disclosed herein provide a therapeutic strategy for improving both basal and pathological wound healing.
    Type: Application
    Filed: September 5, 2019
    Publication date: December 26, 2019
    Inventors: Anne DALLAS, Heini ILVES, Sumedha JAYASENA, Brian H. JOHNSTON
  • Patent number: 10450569
    Abstract: Wound healing is a complex homeostatic process in which several distinct types coordinate to repair a physical damage. Failure to close wounds contributes to the pathology of conditions like diabetes mellitus, particularly in the elderly. Presented herein are molecules, pharmaceutical compositions, and methods for applying small RNA oligonucleotide technology to wound healing. Small RNA oligonucleotide approaches as disclosed herein provide a therapeutic strategy for improving both basal and pathological wound healing.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: October 22, 2019
    Assignee: SOMAGENICS, INC.
    Inventors: Anne Dallas, Heini Ilves, Sumedha Jayasena, Brian H. Johnston
  • Publication number: 20180237783
    Abstract: Wound healing is a complex homeostatic process in which several distinct types coordinate to repair a physical damage. Failure to close wounds contributes to the pathology of conditions like diabetes mellitus, particularly in the elderly. Presented herein are molecules, pharmaceutical compositions, and methods for applying small RNA oligonucleotide technology to wound healing. Small RNA oligonucleotide approaches as disclosed herein provide a therapeutic strategy for improving both basal and pathological wound healing.
    Type: Application
    Filed: August 12, 2016
    Publication date: August 23, 2018
    Inventors: Anne DALLAS, Heini ILVES, Sumedha JAYASENA, Brian H. JOHNSTON
  • Publication number: 20160215328
    Abstract: Methods, systems and compositions are provided for analyzing one or more nucleic acid molecules. The methods, systems and compositions may comprise one or more target specific-oligonucleotide probes (TSPs). The TSPs may hybridize to nucleic acid molecules that are less than or equal to 200 nucleotides in length. The nucleic acid molecules may be small RNA molecules (e.g., miRNA, ncRNA, siRNA, shRNA). The methods, systems and compositions fmd use in a number of applications, for example, isolation of nucleic acid molecules, analysis of low abundance nucleic acid molecules, and/or enrichment of nucleic acid molecules.
    Type: Application
    Filed: February 27, 2014
    Publication date: July 28, 2016
    Inventors: Sergei A. KAZAKOV, Anne DALLAS, Heini ILVES, Sumedha JAYASENA, Brian H. JOHNSTON
  • Publication number: 20090099124
    Abstract: Hepatitis C virus (HCV) is a major cause of chronic liver disease and affects over 270 million individuals worldwide. The HCV genome is a single-stranded RNA that functions as both a messenger RNA and replication template, making it an attractive target for the study of RNA interference. Double-stranded short interfering RNA (siRNA) molecules designed to target the HCV genome are disclosed herein.
    Type: Application
    Filed: December 2, 2008
    Publication date: April 16, 2009
    Applicant: Amgen Inc.
    Inventors: Sumedha Jayasena, Christopher Donald Richardson
  • Publication number: 20070134715
    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: January 29, 2007
    Publication date: June 14, 2007
    Applicant: GILEAD SCIENCES, INC.
    Inventors: Greg Biesecker, Sumedha Jayasena, Larry Gold, Drew Smith, Gary Kirschenheuter
  • Publication number: 20070111228
    Abstract: The present invention relates to RNA interference and methods for selecting interfering RNAs. The present invention also relates to modified interfering RNAs. The present invention also relates to methods of reducing the level of a specific mRNA in a cell, methods for reducing the level of a specific protein in a cell, and methods of regulating gene expression. The present invention also relates to methods of screening libraries for an interfering RNA of interest and methods of screening libraries based on a gene function.
    Type: Application
    Filed: July 31, 2006
    Publication date: May 17, 2007
    Inventors: Sumedha Jayasena, Angela Reynolds, Anastasia Khvorova
  • Publication number: 20060121466
    Abstract: The present invention relates to non-natural cis- and trans-cleaving hammerhead ribozymes and methods for selecting non-natural ribozymes. The present invention also relates to methods of cleaving a target RNA, methods for reducing the level of a target RNA in a cell, and methods of reducing the level of a protein in a cell. The present invention also provides pharmaceutical compositions comprising the non-natural ribozymes of the invention.
    Type: Application
    Filed: June 12, 2003
    Publication date: June 8, 2006
    Applicant: AMGEN INC.
    Inventors: Anastasia Khvorova, Sumedha Jayasena
  • Publication number: 20050239061
    Abstract: The present invention relates to the construction of an allosteric control module in which a catalytic RNA forms a part of or is linked to an effector-binding RNA domain or aptamer. These constructs place the activity of the catalytic RNA under the control of the effector and require the presence of an appropriate effector for activation or inactivation. The present invention provides means to identify useful effector molecules as well as their use to evolve cognate aptamers. The invention involves both the evolution of RNA sequences which bind the effector and a selection proces in which the allosteric control modules are identified by their catalytic function in the presence and absence of the effector. The resulting regulatable catalytic RNAs may be used to alter the expression of a target RNA molecule in a controlled fashion.
    Type: Application
    Filed: March 1, 2001
    Publication date: October 27, 2005
    Inventors: William Marshall, Anastasia Khvorova, Sumedha Jayasena
  • Publication number: 20050043266
    Abstract: Hepatitis C virus (HCV) is a major cause of chronic liver disease and affects over 270 million individuals worldwide. The HCV genome is a single-stranded RNA that functions as both a messenger RNA and replication template, making it an attractive target for the study of RNA interference. Double-stranded short interfering RNA (siRNA) molecules designed to target the HCV genome are disclosed herein.
    Type: Application
    Filed: July 22, 2004
    Publication date: February 24, 2005
    Inventors: Sumedha Jayasena, Christopher Richardson
  • Publication number: 20040248299
    Abstract: The present invention relates to RNA interference and methods for selecting interfering RNAs. The present invention also relates to modified interfering RNAs. The present invention also relates to methods of reducing the level of a specific mRNA in a cell, methods for reducing the level of a specific protein in a cell, and methods of regulating gene expression. The present invention also relates to methods of screening libraries for an interfering RNA of interest and methods of screening libraries based on a gene function.
    Type: Application
    Filed: December 22, 2003
    Publication date: December 9, 2004
    Inventors: Sumedha Jayasena, Angela Reynolds, Anastasia Khvorova
  • Publication number: 20030219803
    Abstract: A homogeneous assay that utilizes molecular beacons as the reporter and nucleic acid ligands as the sensor is described. This assay, called the ligand beacon assay, is for the detection of target molecules in a test mixture. The concept of the ligand beacon assay was tested using several proteins to which high affinity and specific nucleic acid ligands are available. The assay specifically detects the molecular target that binds the nucleic acid ligand with high affinity and specificity. The range of the assay is dictated by the concentration of the nucleic acid ligand/ligand beacon pair used in the assay. Target proteins were detected in buffer as well as in plasma, expanding its applicability to clinical use. This is a simple to use and fast assay format with the potential for automation for high throughput screening applications.
    Type: Application
    Filed: March 10, 2003
    Publication date: November 27, 2003
    Applicant: SomaLogic, Incorporated
    Inventors: Sumedha Jayasena, Larry Gold
  • Patent number: 6544776
    Abstract: A diagnostic biochip comprising a solid support to which one or more specific nucleic acid ligands is attached in a spatially defined manner is provided. Each nucleic acid ligand binds specifically and avidly to a particular target molecule contained within a test mixture, such as a bodily fluid. Also provided are methods for the preparation of nucleic acid ligand biochips. Further, methods for the use of the nucleic acid ligand biochip in diagnosis of a medical condition and quantitative detection of a target molecule are provided.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: April 8, 2003
    Assignee: Somalogic, Inc.
    Inventors: Larry Gold, Daniel Drolet, Dominic A. Zichi, Sumedha Jayasena, Steve Creighton, Stanley Gill
  • Patent number: 6531286
    Abstract: A homogeneous assay that utilizes molecular beacons as the reporter and nucleic acid ligands as the sensor is described. This assay, called the ligand beacon assay, is for the detection of target molecules in a test mixture. The concept of the ligand beacon assay was tested using several proteins to which high affinity and specific nucleic acid ligands are available. The assay specifically detects the molecular target that binds the nucleic acid ligand with high affinity and specificity. The range of the assay is dictated by the concentration of the nucleic acid ligand/ligand beacon pair used in the assay. Target proteins were detected in buffer as well as in plasma, expanding its applicability to clinical use. This is a simple to use and fast assay format with the potential for automation for high throughput screening applications.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: March 11, 2003
    Assignee: Gilead Sciences, Inc.
    Inventors: Sumedha Jayasena, Larry Gold
  • Patent number: 6503715
    Abstract: A Nucleic acid ligand “Biochip” is disclosed, consisting of a solid support to which one or more specific Nucleic acid ligands is attached in a spatially defined manner. Each Nucleic acid ligand binds specifically and avidly to a particular Target molecule contained within a Test mixture, such as a Bodily fluid. The Target molecules include, but are not limited to, proteins (cellular, viral, bacterial, etc.) hormones, sugars, metabolic byproducts, cofactor, and intermediates, drugs, and toxins. Contacting the Test mixture with the Biochip leads to the binding of a Target molecule to its cognate Nucleic acid ligand. Binding of Target to the Nucleic acid ligand results in a detectable change at each specific location on the Biochip. The detectable change can include, but is not limited to, a change in fluorescence, or a change in a physical parameter, such as electrical conductance or refractive index, at each location on the Biochip.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: January 7, 2003
    Assignee: SomaLogic, Inc.
    Inventors: Larry Gold, Dan Drolet, Dom Zichi, Sumedha Jayasena, Steve Creighton, Stanley Gill
  • Patent number: 6465189
    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: Grant
    Filed: June 29, 2000
    Date of Patent: October 15, 2002
    Assignee: Gilead Sciences, Inc.
    Inventors: Greg Biesecker, Sumedha Jayasena, Larry Gold, Drew Smith, Gary Kirschenheuter
  • Patent number: 6458543
    Abstract: A Nucleic acid ligand “Biochip” is disclosed, consisting of a solid support to which one or more specific Nucleic acid ligands is attached in a spatially defined manner. Each Nucleic acid ligand binds specifically and avidly to a particular Target molecule contained within a Test mixture, such as a Bodily fluid. The Target molecules include, but are not limited to, proteins (cellular, viral, bacterial, etc.) hormones, sugars, metabolic byproducts, cofactor, and intermediates, drugs, and toxins. In principle, the Biochip could be used to test any chemically complex mixture provided that Nucleic acid ligands to components suspected of being present in the mixture are attached to the Biochip. Thus, the Nucleic acid ligand Biochip will have a wider use in environmental testing, etc.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: October 1, 2002
    Assignee: SomaLogic, Incorporated
    Inventors: Larry Gold, Dan Drolet, Dom Zichi, Sumedha Jayasena, Steve Creighton, Stanley Gill
  • Publication number: 20010055773
    Abstract: A homogeneous assay that utilizes molecular beacons as the reporter and nucleic acid ligands as the sensor is described. This assay, called the ligand beacon assay, is for the detection of target molecules in a test mixture. The concept of the ligand beacon assay was tested using several proteins to which high affinity and specific nucleic acid ligands are available. The assay specifically detects the molecular target that binds the nucleic acid ligand with high affinity and specificity. The range of the assay is dictated by the concentration of the nucleic acid ligand/ligand beacon pair used in the assay. Target proteins were detected in buffer as well as in plasma, expanding its applicability to clinical use. This is a simple to use and fast assay format with the potential for automation for high throughput screening applications.
    Type: Application
    Filed: July 17, 2001
    Publication date: December 27, 2001
    Applicant: Gilead Sciences, Inc.
    Inventors: Sumedha Jayasena, Larry Gold