Patents by Inventor Darwin J. Prockop

Darwin J. Prockop 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: 20220175842
    Abstract: Disclosed are medicaments and methods for inhibiting brain inflammation and the cognitive memory loss attendant brain disease and damage in an animal. Status epilepticus, stroke and Alzheimer's disease are particular pathologies that are treated employing pharmaceutically acceptable preparations of the A1 exosomes. The preparations comprise an enriched population of A1 exosomes, such as exosomes derived from culture medium from mesenchymal stem cells. Medicaments and methods for inhibiting pattern recognition and/or memory impairment attendant a brain injury event or degenerative brain disease are also disclosed, comprising administering a pharmaceutically acceptable preparation of exosomes, particularly A1 exosomes, that are CD9? and that prevent the elevation of pro-inflammatory cytokines attendant a brain injury or disease.
    Type: Application
    Filed: November 2, 2017
    Publication date: June 9, 2022
    Inventors: Darwin J. PROCKOP, Ashok K. SHETTY, Qianfa LONG, Dinesh UPADHYA, Bharathi HATTIANGADY, Dong-ki KIM
  • Publication number: 20220054554
    Abstract: Preparations comprising an enriched population of extracellular vesicles (nEVs) having a negatively charged surface, and that are CD81+ and CD9?, are provided. Improved processes and methods for producing an enriched population of nEVs from non-murine cells, especially human origin cells and/or tissues, are disclosed. Therapeutic methods for using the preparations, including for reducing brain inflammation and treatment of various pathologies associated with brain inflammation, such as by intravenous or intranasal administration, are also described. Methods and preparations for reducing brain inflammation associated with traumatic brain injury (TBI) are also disclosed. A method for treating a patient having suffered a mild traumatic injury (mTMI), or concussion, such as a sports-related head injury, is also disclosed. The nEVs are also demonstrated to reduce the expression level of IL-I? in brain tissue of an animal having had traumatic brain injury.
    Type: Application
    Filed: June 22, 2021
    Publication date: February 24, 2022
    Inventors: Darwin J. PROCKOP, Dong-ki KIM, Hidetaka NISHIDA, Askok K. SHETTY
  • Patent number: 11160834
    Abstract: Preparations comprising an enriched population of extracellular vesicles (nEVs) having a negatively charged surface, and that are CD81+ and CD9?, are provided. Improved processes and methods for producing an enriched population of nEVs from non-murine cells, especially human origin cells and/or tissues, are disclosed. Therapeutic methods for using the preparations, including for reducing brain inflammation and treatment of various pathologies associated with brain inflammation, such as by intravenous or intranasal administration, are also described. Methods and preparations for reducing brain inflammation associated with traumatic brain injury (TBI) are also disclosed. A method for treating a patient having suffered a mild traumatic injury (mTMI), or concussion, such as a sports-related head injury, is also disclosed. The nEVs are also demonstrated to reduce the expression level of IL-I? in brain tissue of an animal having had traumatic brain injury.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: November 2, 2021
    Assignee: THE TEXAS A&M UNIVERSITY SYSTEM
    Inventors: Darwin J. Prockop, Dong-Ki Kim, Hidetaka Nishida, Askok K. Shetty
  • Patent number: 10351825
    Abstract: A method of producing mesenchymal stem cells from induced pluripotent stem cells in which induced pluripotent stem cells are cultured in the presence of a TGF-? inhibitor an in an atmosphere containing from about 7 vol. % to about 8 vol. % CO2 for a period of time from about 20 day to about 35 days. The cells then are transferred to a culture dish having a hydrophilic surface, and the cells are cultured in a medium containing a TGF-? inhibitor for a period of time sufficient to produce mesenchymal stem cells. Such mesenchymal stem cells are more stable and less likely to form tumors, cancers, or teratomas. Also, the induced pluripotent stem cells may be genetically engineered with at least one polynucleotide encoding a therapeutic agent and then are cultured as hereinabove described to provide genetically engineered mesenchymal stem cells that express sustained amounts of a biologically active protein or polypeptide.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: July 16, 2019
    Assignees: The Texas A&M University System, Temple Therapeutics, Inc.
    Inventors: Darwin J. Prockop, Fei Liu, Qingguo Zhao, Barry A. Berkowitz
  • Publication number: 20190060368
    Abstract: Pharmaceutically acceptable preparations of extracellular vesicles derived from activated MSCs are provided. These preparations are essentially free of MSCs, and demonstrate anti-inflammatory inhibiting pharmacological activity in vivo. Methods for using the preparations to prevent the onset of autoimmune diseases are presented. The MSC derived extracellular vesicles are provided in pharmaceutically acceptable preparations with a carrier, such as saline, and may be used to inhibit activation of antigen presenting cells. These preparations may also be used to suppress the development of T helper 1 (Th1) and Th17 cells. The disclosed activated MSC-derived extracellular vesicle preparations are essentially free of MSCs and other cells.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 28, 2019
    Applicant: THE TEXAS A&M UNIVERSITY SYSTEM
    Inventors: Ryang Hwa LEE, Joo Youn OH, Darwin J. PROCKOP, Dong-ki KIM, Taeko Shigemoto KURODA
  • Publication number: 20190048054
    Abstract: Isolated mesenchymal stem cells, which produce mRNA encoding TSG-6 protein or a biologically active fragment, derivative, or analogue thereof in an amount of at least a first preselected amount, or produce mRNA encoding TSG-6 protein or a biologically active fragment, derivative, or analogue thereof in an amount that does not exceed a second preselected amount, as determined by an assay, such as a RT-PCR assay. Isolated mesenchymal stem cells that produce mRNA encoding TSG-6 protein or a biologically active fragment, derivative, or analogue thereof in an amount of at least the first preselected amount are useful in treating diseases, conditions, and disorders associated with inflammation, while isolated mesenchymal stem cells that produce mRNA encoding TSG-6 protein or a biologically active fragment, derivative, or analogue thereof in an amount that does not exceed the second preselected amount are useful in treating bone diseases, conditions, and disorders, including bone injuries.
    Type: Application
    Filed: July 26, 2018
    Publication date: February 14, 2019
    Inventors: Darwin J. Prockop, Ryang Hwa Lee, Ji Min Yu, Joo Youn Oh, John Reneau, Barry A. Berkowitz
  • Publication number: 20180353548
    Abstract: Preparations comprising an enriched population of extracellular vesicles (nEVs) having a negatively charged surface, and that are CD81+ and CD9?, are provided. Improved processes and methods for producing an enriched population of nEVs from non-murine cells, especially human origin cells and/or tissues, are disclosed. Therapeutic methods for using the preparations, including for reducing brain inflammation and treatment of various pathologies associated with brain inflammation, such as by intravenous or intranasal administration, are also described. Methods and preparations for reducing brain inflammation associated with traumatic brain injury (TBI) are also disclosed. A method for treating a patient having suffered a mild traumatic injury (mTMI), or concussion, such as a sports-related head injury, is also disclosed. The nEVs are also demonstrated to reduce the expression level of IL-I? in brain tissue of an animal having had traumatic brain injury.
    Type: Application
    Filed: April 28, 2016
    Publication date: December 13, 2018
    Inventors: Darwin J. Prockop, Dong-Ki Kim, Hidetaka Nishida, Askok K. Shetty
  • Patent number: 10105396
    Abstract: The present invention encompasses methods and compositions for treating an ocular disease, disorder or condition in a mammal. The invention includes a population of mesenchymal stromal cells that possess anti-inflammatory, anti-apoptotic, immune modulatory and anti-tumorigenic properties. The invention includes administration of TSG-6, STC-1, or a combination thereof to the ocular as a treatment for an ocular disease, disorder or condition in a mammal.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: October 23, 2018
    Assignees: The Texas A&M University System, Temple Therapeutics, Inc.
    Inventors: Darwin J. Prockop, Joo Youn Oh, Barry Berkowitz, Gavin W. Roddy, Robert Rosa
  • Patent number: 10035834
    Abstract: The present invention provides compositions comprising mesenchymal stem cells (MSCs), and methods for their novel use in the repair of cardiac damage and treatment of inflammatory diseases. The invention also provides methods for using TSG-6 protein that is secreted by MSCs under certain conditions, for repair of cardiac damage and inflammatory disease. The compositions of the invention may be particularly useful in restoring cardiac function following cardiac damage, including, but not limited to, myocardial infarction, as well as in reducing symptoms of inflammatory disease.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: July 31, 2018
    Assignee: The Texas A&M University System
    Inventors: Darwin J. Prockop, RyangHwa Lee
  • Publication number: 20180015124
    Abstract: The present invention encompasses methods and compositions for treating an ocular disease, disorder or condition in a mammal. The invention includes a population of mesenchymal stromal cells that possess anti-inflammatory, anti-apoptotic, immune modulatory and anti-tumorigenic properties. The invention includes administration of TSG-6, STC-1, or a combination thereof to the ocular as a treatment for an ocular disease, disorder or condition in a mammal.
    Type: Application
    Filed: June 26, 2017
    Publication date: January 18, 2018
    Inventors: Darwin J. Prockop, Joo Youn Oh, Barry Berkowitz, Gavin W. Roddy, Robert Rosa
  • Patent number: 9730961
    Abstract: The present invention encompasses methods and compositions for treating an ocular disease, disorder or condition in a mammal. The invention includes a population of mesenchymal stromal cells that possess anti-inflammatory, anti-apoptotic, immune modulatory and anti-tumorigenic properties. The invention includes administration of TSG-6, STC-1, or a combination thereof to the ocular as a treatment for an ocular disease, disorder or condition in a mammal.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: August 15, 2017
    Assignees: The Texas A&M University System, Temple Therapeutics, Inc., Scott & White Healthcare
    Inventors: Darwin J. Prockop, Joo Youn Oh, Barry Berkowitz, Gavin W. Roddy, Robert Rosa
  • Publication number: 20170204151
    Abstract: Isolated mesenchymal stem cells, which produce mRNA encoding TSG-6 protein or a biologically active fragment, derivative, or analogue thereof in an amount of at least a first preselected amount, or produce mRNA encoding TSG-6 protein or a biologically active fragment, derivative, or analogue thereof in an amount that does not exceed a second preselected amount, as determined by an assay, such as a RT-PCR assay. Isolated mesenchymal stem cells that produce mRNA encoding TSG-6 protein or a biologically active fragment, derivative, or analogue thereof in an amount of at least the first preselected amount are useful in treating diseases, conditions, and disorders associated with inflammation, while isolated mesenchymal stem cells that produce mRNA encoding TSG-6 protein or a biologically active fragment, derivative, or analogue thereof in an amount that does not exceed the second preselected amount are useful in treating bone diseases, conditions, and disorders, including bone injuries.
    Type: Application
    Filed: July 24, 2015
    Publication date: July 20, 2017
    Inventors: Darwin J. Prockop, Ryang Hwa Lee, Ji Min Yu, Joo Youn Oh, John Reneau, Barry A. Berkowitz
  • Patent number: 9675665
    Abstract: A method of treating or preventing a gum disease or gum disorder or gum injury in a mammal by administering to the mammal at least one inflammation modulatory or anti-inflammatory protein or polypeptide, such as TSG-6 protein, or a biologically active fragment, derivative, or analogue thereof. Gum diseases or gum disorders or gum injuries that may be treated include periodontal gum disease, and gum wounds resulting from gum surgeries.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: June 13, 2017
    Assignee: The Texas A & M University System
    Inventors: Darwin J. Prockop, Kathy K. H. Svoboda, Stacy Renay Beltran
  • Publication number: 20170145385
    Abstract: A method of producing mesenchymal stem cells from induced pluripotent stem cells in which induced pluripotent stem cells are cultured in the presence of a TGF-?inhibitor an in an atmosphere containing from about 7 vol. % to about 8 vol. % C02 for a period of time from about 20 day to about 35 days. The cells then are transfered to a culture dish having a hydrophilic sur face, and the cells are cultured in a medium containing a TGF-? inhibitor for a period of time sufficient to produce mesenchymal stem cells. Such mesenchymal stem cells are more stable and less likely to form tumors, cancers, or teratomas. Also, the induced pluripotent stem cells may be genetically engineered with at least one polynucleotide encoding a therapeutic agent and then are cultured as hereinabove described to provide genetically engineered mesenchymal stem cells that express sustained amounts of a biologically active protein or polypeptide.
    Type: Application
    Filed: July 8, 2015
    Publication date: May 25, 2017
    Inventors: Darwin J. Prockop, Fei Liu, Qingguo Zhao, Barry A. Berkowitz
  • Patent number: 9545428
    Abstract: The present invention encompasses methods and compositions for treating an ocular disease, disorder or condition in a mammal. The invention includes a population of mesenchymal stromal cells that possess anti-inflammatory, anti-apoptotic, immune modulatory and anti-tumorigenic properties. The invention includes administration of TSG-6, STC-1, or a combination thereof to the ocular as a treatment for an ocular disease, disorder or condition in a mammal.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: January 17, 2017
    Assignees: The Texas A&M University System, Temple Therapeutics, Inc.
    Inventors: Darwin J. Prockop, Joo Youn Oh, Barry Berkowitz
  • Patent number: 9511093
    Abstract: The present invention encompasses an osteogenic composition comprising mesenchymal stem cells pre-cultured in the presence of an agent that accelerates canonical Wnt signaling therein. Also, provided are osteogenic compositions incorporated into a biocompatible gel. The present invention provides methods for treating bone degeneration or injury associated with a pathophysiological condition in a mammal or for accelerating repair of a skeletal injury in a mammal by administering to the mammal or contacting the site of injury with the osteogenic composition.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: December 6, 2016
    Assignee: The Texas A & M University System
    Inventors: Carl A. Gregory, Darwin J. Prockop
  • Patent number: 9498517
    Abstract: The present invention encompasses methods, compositions, and devices for treating an ocular disease, disorder or condition in a mammal. The invention includes polypeptides that possess anti-inflammatory, anti-apoptotic, immune modulatory and anti-tumorigenic properties, and their application in the treatment of eye disease, particularly diseases of the retina. In particular aspects, the invention includes administration of a therapeutic polypeptide such as a stanniocalcin family member protein for the treatment of an eye disease. Also included are fusion proteins and cells stimulated or modified to express the therapeutic polypeptides as set forth herein.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: November 22, 2016
    Assignees: Scott & White Healthcare, The Texas A&M University System
    Inventors: Robert Rosa, Gavin W. Roddy, Darwin J. Prockop
  • Publication number: 20160310566
    Abstract: A method of treating or preventing a gum disease or gum disorder or gum injury in a mammal by administering to the mammal at least one inflammation modulatory or anti-inflammatory protein or polypeptide, such as TSG-6 protein, or a biologically active fragment, derivative, or analogue thereof. Gum diseases or gum disorders or gum injuries that may be treated include periodontal gum disease, and gum wounds resulting from gum surgeries.
    Type: Application
    Filed: December 10, 2014
    Publication date: October 27, 2016
    Inventors: Darwin J. Prockop, Kathy K.H. Svoboda, Stacy Renay Beltran
  • Publication number: 20160075750
    Abstract: A method of producing a protein or polypeptide, such as, for example, TSG-6 protein, or a biologically active fragment, derivative or analogue thereof, by introducing into mammalian cells a polynucleotide encoding the biologically active protein or polypeptide or biologically active fragment, derivative, or analogue thereof. The cells then are suspended in a protein-free medium that includes at least one agent that suppresses production of hyaluronic acid, hyaluronan, or a salt thereof by the cells. The cells are cultured for a time sufficient to express the biologically active protein or polypeptide or biologically active fragment, derivative or analogue thereof. The biologically active protein or polypeptide, or fragment, derivative, or analogue thereof then is recovered from the cells, such as, for example, by recovering the protein or polypeptide secreted by the cells from the cell culture medium.
    Type: Application
    Filed: July 7, 2015
    Publication date: March 17, 2016
    Inventors: Darwin J. Prockop, Jun Watanabe, Dong-Ki Kim, Rwang Hwa Lee, Hosoon Choi
  • Publication number: 20160058795
    Abstract: The present invention encompasses methods and compositions for treating an ocular disease, disorder or condition in a mammal. The invention includes a population of mesenchymal stromal cells that possess anti-inflammatory, anti-apoptotic, immune modulatory and anti-tumorigenic properties. The invention includes administration of TSG-6, STC-1, or a combination thereof to the ocular as a treatment for an ocular disease, disorder or condition in a mammal.
    Type: Application
    Filed: August 13, 2015
    Publication date: March 3, 2016
    Inventors: Darwin J. Prockop, Joo Youn Oh, Barry Berkowitz, Gavin W. Roddy, Robert Rosa