Patents by Inventor J. Marc Simard

J. Marc Simard 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: 20230165880
    Abstract: The present invention provides methods of reducing lung injury in a subject in need thereof, comprising administering to the subject an effective amount of an agent that inhibits the activity of SUR1.
    Type: Application
    Filed: April 23, 2021
    Publication date: June 1, 2023
    Inventors: J. Marc Simard, Vladimir Gerzanich, Caron M. Hong
  • Publication number: 20220193096
    Abstract: Methods and compositions are provided that are utilized for treatment and/or prevention of intraventricular hemorrhage or progressive hemorrhagic necrosis (PHN), particularly following spinal cord injury. In particular, the methods and compositions are inhibitors of a particular NCCa-ATP channel and include, for example, inhibitors of SUR1 and/or inhibitors of TRPM4. Kits for treatment and/or prevention of intraventricular hemorrhage or progressive hemorrhagic necrosis (PHN), particularly following spinal cord injury, are also provided. The present invention also concerns treatment and/or prevention of intraventricular hemorrhage in infants, including premature infants utilizing one or more inhibitors of the channel is provided to the infant, for example to brain cells of the infant.
    Type: Application
    Filed: December 20, 2021
    Publication date: June 23, 2022
    Inventor: J. Marc Simard
  • Publication number: 20210113589
    Abstract: The present invention concerns protection of an organ or tissue outside of the central nervous system following an ischemic episode. In particular aspects, the invention concerns organ preservation for transplantation, angina pectoris, kidney reperfusion injury, and so forth. In specific embodiments, the organ is subjected to an inhibitor of an NCCa-ATP channel that is regulated by SUR1. Exemplary inhibitors include sulfonylurea compounds, such as glibenclamide, for example.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 22, 2021
    Inventor: J. Marc Simard
  • Publication number: 20210046094
    Abstract: The present invention provides a method of treating pain in a subject in need thereof, comprising administering to the subject an effective amount of an agent that inhibits the activity of an NCCa-ATP channel
    Type: Application
    Filed: February 27, 2019
    Publication date: February 18, 2021
    Inventors: J. Marc Simard, Vladimir Gerzanich
  • Patent number: 10898496
    Abstract: The present invention concerns protection of an organ or tissue outside of the central nervous system following an ischemic episode. In particular aspects, the invention concerns organ preservation for transplantation, angina pectoris, kidney reperfusion injury, and so forth. In specific embodiments, the organ is subjected to an inhibitor of an NCCa-ATP channel that is regulated by SUR1. Exemplary inhibitors include sulfonylurea compounds, such as glibenclamide, for example.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: January 26, 2021
    Assignees: University of Maryland, Baltimore, The United States of America as Represented by the Department of Veterans Affairs
    Inventor: J. Marc Simard
  • Patent number: 10900040
    Abstract: Embodiments of the disclosure encompass methods and/or compositions for ameliorating or preventing intimal damage caused by mechanical stimulation of endothelial cells. The damage may be caused by use of a device within an artery, vein, or capillary of an individual, such as to remove a thrombus, an embolus or an atherosclerotic plaque in the vessel. Treatment and prevention embodiments concern therapeutically effective amounts of one or more antagonists of the SUR1-TRPM4 channel that is upregulated upon the mechanical stimulation.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: January 26, 2021
    Assignees: University of Maryland, Baltimore, The United States of America as Represented by the Department of Veterans Affairs, Biogen Chesapeake, LLC
    Inventors: J. Marc Simard, Sven Jacobson
  • Publication number: 20200163902
    Abstract: The present invention is directed to therapeutic compositions targeting the NCCa-ATP channel of an astrocyte, neuron or capillary endothelial cell and methods of using same. More specifically, agonists and antagonists of the NCCa-ATP channel are contemplated. The therapeutic compositions are used to treat cancer, more specifically, a metastatic brain tumor, wherein a tumor-brain barrier is present. Such treatments are contemplated in combination with conventional anti-cancer therapies. Alternatively, the compositions are used to prevent cell death and to treat cerebral edema that result from ischemia, due to interruption of blood flow, to tissue trauma or to increased tissue pressure.
    Type: Application
    Filed: January 24, 2020
    Publication date: May 28, 2020
    Inventors: J. Marc Simard, Mingkui Chen
  • Patent number: 10583094
    Abstract: The present invention is directed to therapeutic compositions targeting the NCCa-ATP channel of an astrocyte, neuron or capillary endothelial cell and methods of using same. More specifically, agonists and antagonists of the NCCa-ATP channel are contemplated. The therapeutic compositions are used to treat cancer, more specifically, a metastatic brain tumor, wherein a tumor-brain barrier is present. Such treatments are contemplated in combination with conventional anti-cancer therapies. Alternatively, the compositions are used to prevent cell death and to treat cerebral edema that result from ischemia, due to interruption of blood flow, to tissue trauma or to increased tissue pressure.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: March 10, 2020
    Assignees: University of Maryland, The United States of America as Represented by the Department of Veterans Affairs
    Inventors: J. Marc Simard, Mingkui Chen
  • Patent number: 10533988
    Abstract: A composition comprising a novel Ca2+-activated, [ATP]i-sensitive nonspecific cation (NCCa-ATP) channel is described. The channel is found in mammalian neural cells and exhibits a different sensitivity to block by various adenine nucleotides, and is activated by submicromolar [Ca]i. The NCCa-ATP channel is activated under conditions of ATP depletion, which causes severe cell depolarization, followed by cell swelling. The NCCa-ATP channel is regulated by a sulfonylurea receptor and is inhibited by sulfonylurea compounds glibenclamide and tolbutamide. Methods employing compositions comprising the NCCa-ATP channel to screen for compounds that block the channel and the use of such antagonists as therapeutics in preventing brain swelling and damage are described. In addition, methods employing compositions comprising the Kir2.3 channel to screen for compounds that open the channel and the use of such antagonists as therapeutics in preventing brain swelling and damage are described.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: January 14, 2020
    Assignees: University of Maryland, Baltimore, The United States of America as Represented by the Department of Veterans Affairs
    Inventors: J. Marc Simard, Mingkui Chen
  • Publication number: 20190117672
    Abstract: The present invention concerns protection of an organ or tissue outside of the central nervous system following an ischemic episode. In particular aspects, the invention concerns organ preservation for transplantation, angina pectoris, kidney reperfusion injury, and so forth. In specific embodiments, the organ is subjected to an inhibitor of an NCCa-ATP channel that is regulated by SUR1. Exemplary inhibitors include sulfonylurea compounds, such as glibenclamide, for example.
    Type: Application
    Filed: November 16, 2018
    Publication date: April 25, 2019
    Inventor: J. Marc Simard
  • Publication number: 20190111137
    Abstract: The present invention is directed to a combination of therapeutic compounds and treatment methods and kits using the combination. In particular, one of the combination affects the NCCa-ATP channel of neural tissue, including neurons, glia and blood vessels within the nervous system. Exemplary SUR1 and/or TRPM4 antagonists that inhibit the NCCa-ATP channel may be employed in the combination. The combination therapy also employs one or more of a non-selective cation channel blocker and/or an antagonist of VEFG, NOS, MMP, or thrombin. Exemplary indications for the combination therapy includes the prevention, diminution, and/or treatment of injured or diseased neural tissue, including astrocytes, neurons and capillary endothelial cells, that is due to ischemia, tissue trauma, brain swelling and increased tissue pressure, or other forms of brain or spinal cord disease or injury, for example.
    Type: Application
    Filed: May 8, 2018
    Publication date: April 18, 2019
    Inventors: J. Marc Simard, Vladimir Gerzanich
  • Patent number: 10166244
    Abstract: The present invention concerns protection of an organ or tissue outside of the central nervous system following an ischemic episode. In particular aspects, the invention concerns organ preservation for transplantation, angina pectoris, kidney reperfusion injury, and so forth. In specific embodiments, the organ is subjected to an inhibitor of an NCCa-ATP channel that is regulated by SUR1. Exemplary inhibitors include sulfonylurea compounds, such as glibenclamide, for example.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: January 1, 2019
    Assignees: University of Maryland, Baltimore, The United States of America as Represented by the Department of Veteran Affairs
    Inventor: J. Marc Simard
  • Publication number: 20180172671
    Abstract: A composition comprising a novel Ca2+-activated, [ATP]i-sensitive nonspecific cation (NCCa-ATP) channel is described. The channel is found in mammalian neural cells and exhibits a different sensitivity to block by various adenine nucleotides, and is activated by submicromolar [Ca]i. The NCCa-ATP channel is activated under conditions of ATP depletion, which causes severe cell depolarization, followed by cell swelling. The NCCa-ATP channel is regulated by a sulfonylurea receptor and is inhibited by sulfonylurea compounds glibenclamide and tolbutamide. Methods employing compositions comprising the NCCa-ATP channel to screen for compounds that block the channel and the use of such antagonists as therapeutics in preventing brain swelling and damage are described. In addition, methods employing compositions comprising the Kir2.3 channel to screen for compounds that open the channel and the use of such antagonists as therapeutics in preventing brain swelling and damage are described.
    Type: Application
    Filed: February 13, 2018
    Publication date: June 21, 2018
    Inventors: J. Marc Simard, Mingkui Chen
  • Publication number: 20180155727
    Abstract: Embodiments of the disclosure encompass methods and/or compositions for ameliorating or preventing intimal damage caused by mechanical stimulation of endothelial cells. The damage may be caused by use of a device within an artery, vein, or capillary of an individual, such as to remove a thrombus, an embolus or an atherosclerotic plaque in the vessel. Treatment and prevention embodiments concern therapeutically effective amounts of one or more antagonists of the SUR1-TRPM4 channel that is upregulated upon the mechanical stimulation.
    Type: Application
    Filed: May 25, 2016
    Publication date: June 7, 2018
    Inventors: J. Marc Simard, Sven Jacobson
  • Publication number: 20170333454
    Abstract: Methods and compositions are provided that are utilized for treatment and/or prevention of intraventricular hemorrhage or progressive hemorrhagic necrosis (PHN), particularly following spinal cord injury. In particular, the methods and compositions are inhibitors of a particular NCCa-ATP channel and include, for example, inhibitors of SUR1 and/or inhibitors of TRPM4. Kits for treatment and/or prevention of intraventricular hemorrhage or progressive hemorrhagic necrosis (PHN), particularly following spinal cord injury, are also provided. The present invention also concerns treatment and/or prevention of intraventricular hemorrhage in infants, including premature infants utilizing one or more inhibitors of the channel is provided to the infant, for example to brain cells of the infant.
    Type: Application
    Filed: June 10, 2016
    Publication date: November 23, 2017
    Inventor: J. Marc Simard
  • Publication number: 20170307593
    Abstract: A composition comprising a novel Ca2+-activated, [ATP]i-sensitive nonspecific cation (NCCa-ATP) channel is described. The channel is found in mammalian neural cells and exhibits a different sensitivity to block by various adenine nucleotides, and is activated by submicromolar [Ca]i. The NCCa-ATP channel is activated under conditions of ATP depletion, which causes severe cell depolarization, followed by cell swelling. The NCCa-ATP channel is regulated by a sulfonylurea receptor and is inhibited by sulfonylurea compounds glibenclamide and tolbutamide. Methods employing compositions comprising the NCCa-ATP channel to screen for compounds that block the channel and the use of such antagonists as therapeutics in preventing brain swelling and damage are described. In addition, methods employing compositions comprising the Kir2.3 channel to screen for compounds that open the channel and the use of such antagonists as therapeutics in preventing brain swelling and damage are described.
    Type: Application
    Filed: July 7, 2017
    Publication date: October 26, 2017
    Inventors: J. Marc Simard, Mingkui Chen
  • Publication number: 20170296555
    Abstract: The present invention concerns protection of an organ or tissue outside of the central nervous system following an ischemic episode. In particular aspects, the invention concerns organ preservation for transplantation, angina pectoris, kidney reperfusion injury, and so forth. In specific embodiments, the organ is subjected to an inhibitor of an NCCa-ATP channel that is regulated by SUR1. Exemplary inhibitors include sulfonylurea compounds, such as glibenclamide, for example.
    Type: Application
    Filed: December 5, 2016
    Publication date: October 19, 2017
    Inventor: J. Marc Simard
  • Publication number: 20170112860
    Abstract: The present invention is directed to therapeutic compounds, treatment methods, and kits affecting the NCCa-ATP channel of neural tissue, including neurons, glia and blood vessels within the nervous system, and methods of using same. The NCCa-ATP channel is newly expressed in neural tissue following injury such as ischemia, and is regulated by the sulfonylurea receptor SUR1, being inhibited by sulfonylurea compounds, e.g., glibenclamide and tolbutamide, and opened by diazoxide. Antagonists of the NCCa-ATP channel, including SUR1 antagonists, are useful in the prevention, diminution, and treatment of injured or diseased neural tissue, including astrocytes, neurons and capillary endothelial cells, that is due to ischemia, tissue trauma, brain swelling and increased tissue pressure, or other forms of brain or spinal cord disease or injury. Agonists of the NCCa-ATP channel may be are useful in the treatment neural tissue where damage or destruction of the tissue, such as a gliotic capsule, is desired.
    Type: Application
    Filed: January 4, 2017
    Publication date: April 27, 2017
    Inventors: J. Marc Simard, Mingkui Chen
  • Patent number: 9511075
    Abstract: The present invention concerns protection of an organ or tissue following an ischemic episode In particular aspects, the invention concerns organ preservation for transplantation, angina pectoris, kidney reperfusion injury, and so forth In specific embodiments, the organ is subjected to an inhibitor of an NCCa-ATP channel that is regulated by SUR1 Exemplary inhibitors include sulfonylurea compounds, such as glibenclamide, for example.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: December 6, 2016
    Assignees: The University of Maryland, Baltimore, The United States of America as Represented by the Dept. of Veterans Affairs
    Inventor: J. Marc Simard
  • Patent number: 9375438
    Abstract: Methods and compositions are provided that are utilized for treatment and/or prevention of intraventricular hemorrhage or progressive hemorrhagic necrosis (PHN), particularly following spinal cord injury. In particular, the methods and compositions are inhibitors of a particular NCca-ATP channel and include, for example, inhibitors of SURI and/or inhibitors of TRPM4. Kits for treatment and/or prevention of intraventricular hemorrhage or progressive hemorrhagic necrosis (PHN), particularly following spinal cord injury, are also provided. The present invention also concerns treatment and/or prevention of intraventricular hemorrhage in infants, including premature infants utilizing one or more inhibitors of the channel is provided to the infant, for example to brain cells of the infant.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: June 28, 2016
    Assignees: University of Maryland, Baltimore, The United States of America as Represented by the Dept. of Veterans Affairs
    Inventor: J. Marc Simard