Patents by Inventor Jonathan Dinsmore

Jonathan Dinsmore 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: 20070059288
    Abstract: The present invention provides a system for treating heart disease using a combination of pro-angiogenesis therapy and cellular cardiomyoplasty. The system is particularly useful in treating patients with damaged myocardium due coronary artery disease, myocardial infarction, congestive heart failure, and ischemia. A pro-angiogenic factor (e.g., VEGF) or a means of delivering a pro-angiogenic factor (e.g., a genetically engineered adenovirus, adeno-asssociated virus, or cells) is administered to the heart in order to promote new blood vessel growth in an ischemic or damaged area of the patient's heart. Cells such as skeletal myoblasts or stem cells (e.g., mesenchymal stem cells) with the potential to divide, differentiate, and integrate themselves into the injured myocardium are then administered into the affected area of the heart. By inducing new blood vessels growth in the injured myocardium, the cells are better able to grow and become an integral part of the heart.
    Type: Application
    Filed: March 31, 2006
    Publication date: March 15, 2007
    Inventors: Jonathan Dinsmore, Douglas Jacoby
  • Publication number: 20060276685
    Abstract: The present invention provides a system for treating heart disease as a “bridge to recovery” using cellular cardiomyoplasty. The system is particularly useful in selecting and treating patients with damaged myocardium due coronary artery disease, myocardial infarction, congestive heart failure, and ischemia. Based on various clinical criteria, a patient is selected and optionally treated using cellular cardiomyoplasty to improve the patient's cardiac function. The cardiomyoplasty may be combined with other treatments such as medications or left ventricular assist devices. Preferably, the cellular cardiomyoplasty eliminates the need for invasive surgery such as by-pass grafting or cardiac transplantation. The invention also provides kits for use in selecting and treating patients using the inventive method.
    Type: Application
    Filed: May 9, 2006
    Publication date: December 7, 2006
    Inventor: Jonathan Dinsmore
  • Publication number: 20060263338
    Abstract: The present invention provides improved systems and methods for the minimally invasive treatment of heart tissue deficiency, damage and/or loss, especially in patients suffering from disorders characterized by insufficient cardiac function, such as congestive heart failure or myocardial infarction. In certain embodiments, a cell composition comprising autologous skeletal myoblasts and, optionally, fibroblasts, cardiomyocytes and/or stem cells, is delivered to a subject's myocardium at or near the site of tissue deficiency, damage or loss, using an intravascular catheter with a deployable needle. Preferably, the cell transplantation is performed after identifying a region of the subject's myocardium in need of treatment. The inventive procedure, which can be repeated several times over time, results in improved structural and/or functional properties of the region treated, as well as in improved overall cardiac function.
    Type: Application
    Filed: March 3, 2006
    Publication date: November 23, 2006
    Inventors: Douglas Jacoby, Jonathan Dinsmore
  • Publication number: 20060031944
    Abstract: An embryonic stem cell which may be induced to differentiate homogeneously into a desired primary cell line. The embryonic stem cell may be engineered with DNA, which encodes a protein or polypeptide which promotes differentiation of the stem cell into a specific cell line, such as, for example, a neuronal cell line, a muscle cell line, or a hematopoietic cell line. The DNA may encode a transcription factor found in the particular cell line. In another alternative, a desired cell line is produced from embryonic stem cells by culturing embryonic stem cells under conditions which provide for a three-dimensional network of embryonic stem cells, and then stimulating embryonic stem cells with an agent, such as retinoic acid, or dimethylsulfoxide, which promotes differentiation of the embryonic stem cells into the desired cell line, such as, for example, a neuronal cell line, or a muscle cell line.
    Type: Application
    Filed: October 13, 2005
    Publication date: February 9, 2006
    Applicant: Diacrin, Inc.
    Inventors: Jonathan Dinsmore, Judson Ratliff
  • Patent number: 6821779
    Abstract: The instant methods pertain to improved methods for storing neural cells, preferably dissociated neural cells, prior to their use in transplantation and to the cells obtained using such methods. One embodiment pertains to methods for storing the neural cells in medium lacking added buffer or added protein, other embodiments feature neural cells which are maintained at 4° C. prior to cryopreservation and have comparable viability and/or functionality to freshly harvest cells. In addition, methods for storing and/or transplantation of porcine neural cells are described.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: November 23, 2004
    Assignees: University Hospital Groningen, Inc., Diacrin, Inc.
    Inventors: Jan Koopmans, Douglas B. Jacoby, Jonathan Dinsmore
  • Patent number: 6713245
    Abstract: The instant methods pertain to an improved methods for storing neural cells, preferably dissociated neural cells, prior to their use in transplantation and to the cells obtained using such methods. One embodiment pertains to methods for storing the neural cells in medium lacking added buffer or added protein, other embodiments feature neural cells which are maintained at 4° C. prior to cryopreservation and have comparable viability and/or functionality to freshly harvested cells. In addition, methods for storing and/or transplantation of porcine neural cells are described.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: March 30, 2004
    Assignees: Diacrin, Inc., University Hospital Groningen
    Inventors: Jan Koopmans, Douglas B. Jacoby, Jonathan Dinsmore
  • Publication number: 20030113301
    Abstract: Muscle cells and methods for using the muscle cells are provided. In one embodiment, the invention provides transplantable skeletal muscle cell compositions and their methods of use. In one embodiment, the muscle cells can be transplanted into patients having disorders characterized by insufficient cardiac function, e.g., congestive heart failure, in a subject by administering the skeletal myoblasts to the subject. The muscle cells can be autologous, allogeneic, or xenogeneic to the recipient.
    Type: Application
    Filed: March 21, 2002
    Publication date: June 19, 2003
    Inventors: Albert Edge, Jonathan Dinsmore
  • Patent number: 6491912
    Abstract: Porcine cardiomyocytes and methods for using the cardiomyocytes to treat disorders characterized by insufficient cardiac function are described. The porcine cardiomyocytes are preferably embryonic porcine cardiomyocytes. The porcine cardiomyocytes can be modified to be suitable for transplantation into a xenogeneic subject, such as a human. For example, the porcine cardiomyocytes can be modified such that an antigen (e.g., an MHC class I antigen) on the cardiomyocyte surface which is capable of stimulating an immune response against the cardiomyocytes in a xenogeneic subject is altered (e.g., by contact with an anti-MHC class I antibody, or a fragment or derivative thereof) to inhibit rejection of the cardiomyocyte when introduced into the subject. In one embodiment, the porcine cardiomyocytes are obtained from a pig which is essentially free from organisms or substances which are capable of transmitting infection or disease to the recipient subject.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: December 10, 2002
    Assignee: Diacrin, Inc.
    Inventor: Jonathan Dinsmore
  • Publication number: 20020136705
    Abstract: Porcine spinal cord cells and methods for using the cells to treat spinal cord damage due to neurodegeneration resulting from spinal cord injury and neurodegenerative disorders are described. The porcine spinal cord cells are preferably embryonic spinal cord cells obtained from select gestational days. The porcine spinal cord cells can be modified to be suitable for transplantation into a xenogeneic subject, such as a human. For example, the porcine spinal cord cells can be modified such that an antigen (e.g., an MHC class I antigen) on the cell surface which is capable of stimulating an immune response against the cell in a xenogeneic subject is altered (e.g., by contact with an anti-MHC class I antibody, or a fragment or derivative thereof) to inhibit rejection of the cell when introduced into the subject.
    Type: Application
    Filed: September 29, 1998
    Publication date: September 26, 2002
    Inventor: JONATHAN DINSMORE
  • Patent number: 6444205
    Abstract: Methods for using neural cells to treat chronic pain and/or spasticity are described. The neural cells can be derived from any mammal, and are preferably human or porcine in origin. The neural cells preferably are serotonergic cells or are gamma-aminobutryic acid (GABA)—producing cells. Neural cells can be obtained from adult, juvenile, embryonic or fetal donors. Neural cells can be modified to be suitable for transplantation into a subject. For example, the neural cells can be modified such that an antigen (e.g., an MHC class I antigen) on the cell surface which is capable of stimulating an immune response against the cell in a subject is altered (e.g., by contact with an anti-MHC class I antibody, or a fragment or derivative thereof) to inhibit rejection of the cell when introduced into the subject or can be genetically modified to produce a factor.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: September 3, 2002
    Assignee: Diacrin, Inc.
    Inventors: Jonathan Dinsmore, Julie Siegan
  • Publication number: 20020102239
    Abstract: The instant methods pertain to an improved methods for storing neural cells, preferably dissociated neural cells, prior to their use in transplantation and to the cells obtained using such methods. One embodiment pertains to methods for storing the neural cells in medium lacking added buffer or added protein, other embodiments feature neural cells which are maintained at 4° C. prior to cryopreservation and have comparable viability and/or functionality to freshly harvested cells. In addition, methods for storing and/or transplantation of porcine neural cells are described.
    Type: Application
    Filed: July 6, 1998
    Publication date: August 1, 2002
    Inventors: JAN KOOPMANS, DOUGLAS B. JACOBY, JONATHAN DINSMORE
  • Publication number: 20020031497
    Abstract: Porcine neural cells and methods for using the cells to treat neurological deficits due to neurodegeneration are described. The porcine neural cells are preferably embryonic mesencephalic, embryonic striatal cells, or embryonic cortical cells. The porcine neural cells can be modified to be suitable for transplantation into a xenogeneic subject, such as a human. For example, the porcine neural cells can be modified such that an antigen (e.g., an MHC class I antigen) on the cell surface which is capable of stimulating an immune response against the cell in a xenogeneic subject is altered (e.g., by contact with an anti-MHC class I antibody, or a fragment or derivative thereof) to inhibit rejection of the cell when introduced into the subject. In one embodiment, the porcine neural cells are obtained from a pig which is essentially free from organisms or substances which are capable of transmitting infection or disease to the recipient subject.
    Type: Application
    Filed: April 26, 2001
    Publication date: March 14, 2002
    Applicant: Diacrin, Inc.
    Inventors: Thomas Fraser, Jonathan Dinsmore
  • Publication number: 20020009461
    Abstract: Porcine neural cells and methods for using the cells to treat neurological deficits due to neurodegeneration are described. The porcine neural cells are preferably embryonic mesencephalic, embryonic striatal cells, or embryonic cortical cells. The porcine neural cells can be modified to be suitable for transplantation into a xenogeneic subject, such as a human. For example, the porcine neural cells can be modified such that an antigen (e.g., an MHC class I antigen) on the cell surface which is capable of stimulating an immune response against the cell in a xenogeneic subject is altered (e.g., by contact with an anti-MHC class I antibody, or a fragment or derivative thereof) to inhibit rejection of the cell when introduced into the subject. In one embodiment, the porcine neural cells are obtained from a pig which is essentially free from organisms or substances which are capable of transmitting infection or disease to the recipient subject.
    Type: Application
    Filed: May 2, 2001
    Publication date: January 24, 2002
    Applicant: Diacrin, Inc.
    Inventors: Ole Isacson, Jonathan Dinsmore
  • Publication number: 20010055587
    Abstract: Methods for using neural cells to treat chronic pain and/or spasticity are described. The neural cells can be derived from any mammal, and are preferably human or porcine in origin. The neural cells preferably are serotonergic cells or are gamma-aminobutryic acid (GABA)-producing cells. Neural cells can be obtained from adult, juvenile, embryonic or fetal donors. Neural cells can be modified to be suitable for transplantation into a subject. For example, the neural cells can be modified such that an antigen (e.g., an MHC class I antigen) on the cell surface which is capable of stimulating an immune response against the cell in a subject is altered (e.g., by contact with an anti-MHC class I antibody, or a fragment or derivative thereof) to inhibit rejection of the cell when introduced into the subject or can be genetically modified to produce a factor.
    Type: Application
    Filed: September 30, 1998
    Publication date: December 27, 2001
    Inventors: JONATHAN DINSMORE, JULIE SIEGAN
  • Publication number: 20010053354
    Abstract: Porcine cardiomyocytes and methods for using the cardiomyocytes to treat disorders characterized by insufficient cardiac function are described. The porcine cardiomyocytes are preferably embryonic porcine cardiomyocytes. The porcine cardiomyocytes can be modified to be suitable for transplantation into a xenogeneic subject, such as a human. For example, the porcine cardiomyocytes can be modified such that an antigen (e.g., an MHC class I antigen) on the cardiomyocyte surface which is capable of stimulating an immune response against the cardiomyocytes in a xenogeneic subject is altered (e.g., by contact with an anti-MHC class I antibody, or a fragment or derivative thereof) to inhibit rejection of the cardiomyocyte when introduced into the subject. In one embodiment, the porcine cardiomyocytes are obtained from a pig which is essentially free from organisms or substances which are capable of transmitting infection or disease to the recipient subject.
    Type: Application
    Filed: March 16, 1999
    Publication date: December 20, 2001
    Inventor: JONATHAN DINSMORE
  • Patent number: 6294383
    Abstract: Porcine neural cells and methods for using the cells to treat neurological deficits due to neurodegeneration are described. The porcine neural cells are preferably embryonic mesencephalic, embryonic striatal cells, or embryonic cortical cells. The porcine neural cells can be modified to be suitable for transplantation into a xenogeneic subject, such as a human. For example, the porcine neural cells can be modified such that an antigen (e.g., an MHC class I antigen) on the cell surface which is capable of stimulating an immune response against the cell in a xenogeneic subject is altered (e.g., by contact with an anti-MHC class I antibody, or a fragment or derivative thereof) to inhibit rejection of the cell when introduced into the subject. In one embodiment, the porcine neural cells are obtained from a pig which is essentially free from organisms or substances which are capable of transmitting infection or disease to the recipient subject.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: September 25, 2001
    Assignees: The McLean Hospital Corporation, Diacrin, Inc.
    Inventors: Ole Isacson, Jonathan Dinsmore
  • Patent number: 6277372
    Abstract: Porcine neural cells and methods for using the cells to treat neurological deficits due to neurodegeneration are described. The porcine neural cells are preferably embryonic mesencephalic, embryonic striatal cells, or embryonic cortical cells. The porcine neural cells can be modified to be suitable for transplantation into a xenogeneic subject, such as a human. For example, the porcine neural cells can be modified such that an antigen (e.g., an MHC class I antigen) on the cell surface which is capable of stimulating an immune response against the cell in a xenogeneic subject is altered (e.g., by contact with an anti-MHC class I antibody, or a fragment or derivative thereof) to inhibit rejection of the cell when introduced into the subject. In one embodiment, the porcine neural cells are obtained from a pig which is essentially free from organisms or substances which are capable of transmitting infection or disease to the recipient subject.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: August 21, 2001
    Assignee: Diacrin, Inc.
    Inventors: Thomas Fraser, Jonathan Dinsmore
  • Patent number: 6258353
    Abstract: Porcine neural cells and methods for using the cells to treat neurological deficits due to neurodegeneration are described. The porcine neural cells are preferably embryonic mesencephalic, embryonic striatal cells, or embryonic cortical cells. The porcine neural cells can be modified to be suitable for transplantation into a xenogeneic subject, such as a human. For example, the porcine neural cells can be modified such that an antigen (e.g., an MHC class I antigen) on the cell surface which is capable of stimulating an immune response against the cell in a xenogeneic subject is altered (e.g., by contact with an anti-MHC class I antibody, or a fragment or derivative thereof) to inhibit rejection of the cell when introduced into the subject. In one embodiment, the porcine neural cells are obtained from a pig which is essentially free from organisms or substances which are capable of transmitting infection or disease to the recipient subject.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: July 10, 2001
    Assignee: Diacrin, Inc.
    Inventors: Ole Isacson, Jonathan Dinsmore
  • Patent number: 6204053
    Abstract: Porcine neural cells and methods for using the cells to treat neurological deficits due to neurodegeneration are described. The porcine neural cells are preferably embryonic mesencephalic, embryonic striatal cells, or embryonic cortical cells. The porcine neural cells can be modified to be suitable for transplantation into a xenogeneic subject, such as a human. For example, the porcine neural cells can be modified such that an antigen (e.g., an MHC class I antigen) on the cell surface which is capable of stimulating an immune response against the cell in a xenogeneic subject is altered (e.g., by contact with an anti-MHC class I antibody, or a fragment or derivative thereof) to inhibit rejection of the cell when introduced into the subject. In one embodiment, the porcine neural cells are obtained from a pig which is essentially free from organisms or substances which are capable of transmitting infection or disease to the recipient subject.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: March 20, 2001
    Assignee: Diacrin, Inc.
    Inventor: Jonathan Dinsmore
  • Patent number: 6140116
    Abstract: Porcine neural cells and methods for using the cells to treat neurological deficits due to neurodegeneration are described. The porcine neural cells are preferably embryonic mesencephalic, embryonic striatal cells, or embryonic cortical cells. The porcine neural cells can be modified to be suitable for transplantation into a xenogeneic subject, such as a human. For example, the porcine neural cells can be modified such that an antigen (e.g., an MHC class I antigen) on the cell surface which is capable of stimulating an immune response against the cell in a xenogeneic subject is altered (e.g., by contact with an anti-MHC class I antibody, or a fragment or derivative thereof) to inhibit rejection of the cell when introduced into the subject. In one embodiment, the porcine neural cells are obtained from a pig which is essentially free from organisms or substances which are capable of transmitting infection or disease to the recipient subject.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: October 31, 2000
    Assignee: Diacrin, Inc.
    Inventor: Jonathan Dinsmore