Patents by Inventor K. George Chandy

K. George Chandy 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: 9878006
    Abstract: Activation of brown adipose tissue, treatment of obesity and/or treatment of obesity-related disorders in human or non-human animal subjects by administering to the subject a potassium channel inhibiting agent. The potassium channel inhibiting agent may comprise ShK toxin or a modified ShK toxin. Examples of modified ShK toxins include ShK-186.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: January 30, 2018
    Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, KINETA ONE, LLC
    Inventors: K. George Chandy, Sanjeev Kumar Upadhayay, Ping H. Wang, Paolo Sassone-Corsi, Kristin Lynn Eckel-Mahan, Shawn Iadonato, Jogesh Mukherjee, M. Reza Mirbolooki
  • Publication number: 20170274047
    Abstract: Analogs of ShK toxin and methods for using such ShK analogs. The ShK analogs generally comprise ShK toxin attached to a chemical entity (e.g. an atom, molecule, group, residue, compound, moiety, etc.) that has an anionic charge. In some embodiments, the chemical entity attached to the ShK toxin may comprise an amino acid residue. The ShK analogs may be administered to human or non-human animal subjects to cause inhibition of potassium channels or to otherwise treat diseases or disorders. In some embodiments, the chemical entity to which the ShK toxin is attached may be chosen to provide selective inhibition of certain potassium channels (e.g., Kv1.3 channels) over other potassium channels (e.g., Kv1.1 channels). In come embodiments, the chemical entity to which the ShK toxin is attached may include a fluorophore, thereby providing a fluorophore tagged ShK analog.
    Type: Application
    Filed: February 28, 2017
    Publication date: September 28, 2017
    Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, BACHEM AMERICAS, INC.
    Inventors: K. George Chandy, Christine Beeton, Michael William Pennington
  • Patent number: 9616102
    Abstract: Analogs of ShK toxin and methods for using such ShK analogs. The ShK analogs generally comprise ShK toxin attached to a chemical entity (e.g. an atom, molecule, group, residue, compound, moiety, etc.) that has an anionic charge. In some embodiments the chemical entity attached to the ShK toxin may comprise an amino acid residue. The ShK analogs may be administered to human or non-human animal subjects to cause inhibition of potassium channels or to otherwise treat diseases or disorders. In some embodiments, the chemical entity to which the ShK toxin is attached may be chosen to provide selective inhibition of certain potassium channels (e.g., Kv1.3 channels) over other potassium channels (e.g., Kv1.1 channels). In come embodiments, the chemical entity to which the ShK toxin is attached may include a fluorophore, thereby providing a fluorophore tagged ShK analog.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: April 11, 2017
    Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, BACHEM AMERICAS, INC.
    Inventors: K. George Chandy, Christine Beeton, William Michael Pennington
  • Publication number: 20170095530
    Abstract: Activation of brown adipose tissue, treatment of obesity and/or treatment of obesity-related disorders in human or non-human animal subjects by administering to the subject a potassium channel inhibiting agent. The potassium channel inhibiting agent may comprise ShK toxin or a modified ShK toxin. Examples of modified ShK toxins include ShK-186.
    Type: Application
    Filed: February 22, 2016
    Publication date: April 6, 2017
    Inventors: K. George Chandy, Sanjeev Kumar Upadhayay, Ping H. Wang, Paolo Sassone-Corsi, Kristin Lynn Eckel-Mahan, Shawn Iadonato, Jogesh Mukherjee, M. Reza Mirbolooki
  • Publication number: 20160015782
    Abstract: Analogs of ShK toxin and methods for using such ShK analogs. The ShK analogs generally comprise ShK toxin attached to a chemical entity (e.g. an atom, molecule, group, residue, compound, moiety, etc.) that has an anionic charge. In some embodiments the chemical entity attached to the ShK toxin may comprise an amino acid residue. The ShK analogs may be administered to human or non-human animal subjects to cause inhibition of potassium channels or to otherwise treat diseases or disorders. In some embodiments, the chemical entity to which the ShK toxin is attached may be chosen to provide selective inhibition of certain potassium channels (e.g., Kv1.3 channels) over other potassium channels (e.g., Kv1.1 channels). In come embodiments, the chemical entity to which the ShK toxin is attached may include a fluorophore, thereby providing a fluorophore tagged ShK analog.
    Type: Application
    Filed: May 28, 2015
    Publication date: January 21, 2016
    Inventors: K. George Chandy, Christine Beeton, William Michael Pennington
  • Patent number: 9061071
    Abstract: Analogs of ShK toxin and methods for using such ShK analogs. The ShK analogs generally comprise ShK toxin attached to a chemical entity (e.g. an atom, molecule, group, residue, compound, moiety, etc.) that has an anionic charge. The ShK analogs may be administered to human or non-human animal subjects to cause inhibition of potassium channels or to otherwise treat diseases or disorders. In some embodiments, the chemical entity to which the ShK toxin is attached may be chosen to provide selective inhibition of certain potassium channels (e.g., Kv 1.3 channels) over other potassium channels (e.g., Kv 1.1 channels). In come embodiments, the chemical entity to which the ShK toxin is attached may include a fluorophore and such fluorophore-tagged ShK analogs may be used in flow cytometry alone, or in conjunction with class II tetramers that can detect autoreactive cells.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: June 23, 2015
    Assignee: The Regents of the University of California
    Inventors: K. George Chandy, Christine Beeton, William Michael Pennington
  • Publication number: 20150072940
    Abstract: Activation of brown adipose tissue, treatment of obesity and/or treatment of obesity-related disorders in human or non-human animal subjects by administering to the subject a potassium channel inhibiting agent. The potassium channel inhibiting agent may comprise ShK toxin or a modified ShK toxin. Examples of modified ShK toxins include ShK-186.
    Type: Application
    Filed: October 2, 2012
    Publication date: March 12, 2015
    Inventors: K. George Chandy, Sanjeev Kumar Upadhayay, Ping H. Wang, Paolo Sassone-Corsi, Kristin Lynn Eckel-Mahan, Shawn Iadonato, Jogesh Mukherjee, M. Reza Mirbolooki
  • Patent number: 8026263
    Abstract: Methods, compositions and devices for inhibiting neoproliferative changes in blood vessel walls or other anatomical structures. One or more compounds of Formula I or I-A set forth herein are administered systemically and/or locally to human or veterinary patients to deter or prevent unwanted proliferative changes in blood vessels or other anatomical structures. The invention may be used to deter or prevent stenosis or restenosis of arteries following angioplasty and/or stent placement. In one embodiment, there is provided an implantable stent or stent graft from which one or more compounds of the present invention will elute or otherwise be delivered into an affected blood vessel wall.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: September 27, 2011
    Assignee: The Regents of the University of California
    Inventors: Ralf Koehler, Heike Wulff, Joachim Hoyer, K. George Chandy
  • Patent number: 7772408
    Abstract: Compositions of matter comprising 5-phenylalkoxypsoralen compounds and their method of synthesis and use. The compounds are useable to treat diseases or disorders in human or veterinary patients, including autoimmune diseases such as multiple sclerosis. The compounds inhibit potassium channels, including the Kv1.3 channel and at least some of the therapeutic effects of such compounds may be due at least in part to potassium channel inhibition.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: August 10, 2010
    Assignee: The Regents of the University of California
    Inventors: Julia Vennekamp, Heike Wulff, K. George Chandy, Stephan Grissmer, Wolfram Hansel
  • Publication number: 20090048270
    Abstract: Methods, compositions and devices for inhibiting neoproliferative changes in blood vessel walls or other anatomical structures. One or more compounds of Formula I or I-A set forth herein are administered systemically and/or locally to human or veterinary patients to deter or prevent unwanted proliferative changes in blood vessels or other anatomical structures. The invention may be used to deter or prevent stenosis or restenosis of arteries following angioplasty and/or stent placement. In one embodiment, there is provided an implantable stent or stent graft from which one or more compounds of the present invention will elute or otherwise be delivered into an affected blood vessel wall.
    Type: Application
    Filed: October 30, 2003
    Publication date: February 19, 2009
    Inventors: Ralf Koehler, Heike Wulff, Joachim Hoyer, K. George Chandy
  • Patent number: 7378496
    Abstract: The present invention is based on the discovery and cloning of the human small conductance calcium activated potassium channel type 3 (hKCa3/KCNN3) gene, which is expressed in neuronal cells, skeletal muscle, heart, and lymphocytes. Alterations in the hKCa3/KCNN3 gene or its protein product may enhance susceptibility to schizophrenia and/or bipolar disorder. hKCa3/KCNN3 may be involved in neuropsychiatric, neurological, neuromuscular, and immunological disorders. Substantially purified hKCa3/KCNN3 polypeptides and polynucleotides are provided. Antibodies which bind to hKCa3/KCNN3 polypeptides are also disclosed. A method for identifying a compound which affects hKCa3/KCNN3 polynucleotide or polypeptide is provided. A method for diagnosis and determining the prognosis and treatment regimen of a subject having or at risk of having a hKCa3/KCNN3-associated disorder is also provided.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: May 27, 2008
    Assignee: The Regents of the University of California
    Inventors: K. George Chandy, J. Jay Gargus, George Gutman, Emmanuelle Fantino, Katarin Kalman
  • Patent number: 7235577
    Abstract: Compounds, preparations and methods for immunosuppressive treatment of autoimmune disorders, graft rejection and/or graft/host disease. Therapeutically effective amounts of certain substituted triarylmethane compounds, such as 1-[(2-chlorophenyl)diphenylmethyl]-1H-pyrazole, are administered to mammalian patients to selectively inhibit the calcium-activated K+ channel (IKCa1) in lymphocytes, monocytes, macrophages, platelets or endothelial cells without concomitant inhibition of P450-dependent enzyme systems, resulting in reduction of antigen-, cytokine-, or mitogen-induced calcium entry through store operated calcium channels in these cells, suppression of cytokine production by these cells, and inhibition of activation of these cells. Such inhibition of the Ca++ activated K+ channel (IKCa1) prevents the pre-Ca++ stage of cell activation and thus causes immunosuppression and an anti-inflammatory response.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: June 26, 2007
    Assignee: The Regents of the University of California
    Inventors: K. George Chandy, Heike Wulff
  • Patent number: 7022480
    Abstract: The present invention is based on the discovery and cloning of two variants of the small conductance calcium activated potassium channel type 3 (hKCa3/KCNN3) gene. The isoform variants are identical to the structure of the SKCa3-1a transcript with regard to exons 2–8, but differ in that one variant, SKCa3-1b, contains exon 1b in place of exon 1a and in that the other variant, SKCa3-1c, contains exon 1c in place of exon 1a. When expressed simultaneously with SKCa3-1a, the variants will independently dominantly negatively suppress SKCa3-1a and other functional members of the SKCa channel family. Accordingly, the present invention provides the novel gene variants, methods for the detection of the variants and treatment of disorders related to the activity of these variants. Kits employing the methods of the invention are also described.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: April 4, 2006
    Assignee: The Regents of the University of California
    Inventors: J. Jay Gargus, K. George Chandy, Vikram Shakkottai, Hiroaki Tomita
  • Patent number: 6803375
    Abstract: Compounds, preparations and methods for immunosuppressive treatment of autoimmune disorders, graft rejection and/or graft/host disease. Therapeutically effective amounts of certain substituted triarylmethane compounds, such as 1-[(2-chlorophenyl)diphenylmethyl]-1H-pyrazole, are administered to mammalian patients to selectively inhibit the calcium-activated K+ channel (IKCa1) in lymphocytes, monocytes, macrophages, platelets or endothelial cells without concomitant inhibition of P450-dependent enzyme systems, resulting in reduction of antigen-, cytokine-, or mitogen-induced calcium entry through store operated calcium channels in these cells, suppression of cytokine production by these cells, and inhibition of activation of these cells. Such inhibition of the Ca++ activated K+ channel (IKCa1) prevents the pre-Ca++ stage of cell activation and thus causes immunosuppression and an anti-inflammatory response.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: October 12, 2004
    Assignee: The Regents of the University of California
    Inventors: K. George Chandy, Heike Wulff
  • Publication number: 20040137487
    Abstract: The present invention is based on the discovery and cloning of the human small conductance calcium activated potassium channel type 3 (hKCa3/KCNN3) gene, which is expressed in neuronal cells, skeletal muscle, heart, and lymphocytes. Alterations in the hKCa3/KCNN3 gene or its protein product may enhance susceptibility to schizophrenia and/or bipolar disorder. hKCa3/KCNN3 may be involved in neuropsychiatric, neurological, neuromuscular, and immunological disorders. Substantially purified hKCa3/KCNN3 polypeptides and polynucleotides are provided. Antibodies which bind to hKCa3/KCNN3 polypeptides are also disclosed. A method for identifying a compound which affects hKCa3/KCNN3 polynucleotide or polypeptide is provided. A method for diagnosis and determining the prognosis and treatment regimen of a subject having or at risk of having a hKCa3/KCNN3-associated disorder is also provided.
    Type: Application
    Filed: November 24, 2003
    Publication date: July 15, 2004
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: K. George Chandy, J. Jay Gargus, George Gutman, Emmanuelle Fantino, Katarin Kalman
  • Patent number: 6653100
    Abstract: The present invention is based on the discovery and cloning of the human small conductance calcium activated potassium channel type 3 (hKCa3/KCNN3) gene, which is expressed in neuronal cells, skeletal muscle, heart, and lymphocytes. Alterations in the hKCa3/KCNN3 gene or its protein product may enhance susceptibility to schizophrenia and/or bipolar disorder. hKCa3/KCNN3 may be involved in neuropsychiatric, neurological, neuromuscular, and immunological disorders. Substantially purified hKCa3/KCNN3 polypeptides and polynucleotides are provided. Antibodies which bind to hKCa3/KCNN3 polypeptides are also disclosed. A method for identifying a compound which affects hKCa3/KCNN3 polynucleotide or polypeptide is provided. A method for diagnosis and determining the prognosis and treatment regimen of a subject having or at risk of having a hKCa3/KCNN3-associated disorder is also provided.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: November 25, 2003
    Assignee: The Regents of the University of California
    Inventors: K. George Chandy, J. Jay Gargus, George Gutman, Emmanuelle Fantino, Katarin Kalman
  • Patent number: 6541494
    Abstract: Compounds, preparations and methods for immunosuppressive treatment of autoimmune disorders, graft rejection and/or graft/host disease. Therapeutically effective amounts of certain substituted triarylmethane compounds, such as 1-[(2-chlorophenyl)diphenylmethyl]-1H-pyrazole, are administered to mammalian patients to selectively inhibit the calcium-activated K+ channel (IKCa1) in lymphocytes, monocytes, macrophages, platelets or endothelial cells without concomitant inhibition of P450-dependent enzyme systems, resulting in reduction of antigen-, cytokine-, or mitogen-induced calcium entry through store operated calcium channels in these cells, suppression of cytokine production by these cells, and inhibition of activation of these cells. Such inhibition of the Ca++ activated K+ channel (IKCa1) prevents the pre-Ca++ stage of cell activation and thus causes immunosuppression and an anti-inflammatory response.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: April 1, 2003
    Assignee: The Regents of the University of California
    Inventors: K. George Chandy, Heike Wulff, Michael D. Cahalan, Stephan Grismer, Heiko J. Rauer, Mark J. Miller
  • Patent number: 6165719
    Abstract: The present invention is based on the discovery and cloning of the human small conductance calcium activated potassium channel type 3 (hKCa3/KCNN3) gene, which is expressed in neuronal cells, skeletal muscle, heart, and lymphocytes. Alterations in the hKCa3/KCNN3 gene or its protein product may enhance susceptibility to schizophrenia and/or bipolar disorder. hKCa3/KCNN3 may be involved in neuropsychiatric, neurological, neuromuscular, and immunological disorders. Substantially purified hKCa3/KNN3 polypeptides and polynucleotides are provided. Antibodies which bind to hKCa3/KCNN3 polypeptides are also disclosed. A method for identifying a compound which affects hKCa3/KCNN3 polynucleotide or polypeptide is provided. A method for diagnosis and determining the prognosis and treatment regimen of a subject having or at risk of having a hKCa3/KCNN3-associated disorder is also provided.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: December 26, 2000
    Assignee: The Regents of the University of California
    Inventors: K. George Chandy, J. Jay Gargus, George Gutman, Emmanuelle Fantino, Katarin Kalman
  • Patent number: 6077680
    Abstract: Disclosed are methods and compositions comprising DNA segments, and proteins derived from sea anemone species. More particularly, it concerns the novel ShK toxin, ShK toxin analogs, chemically-modified toxin analogs, and nucleic acid segments encoding the ShK toxin from Stichodactyla helianthus. Various methods for making and using these DNA segments, DNA segments encoding synthetically-modified ShK toxins, and native and synthetic ShK peptides are disclosed, such as, for example, the use of DNA segments as diagnostic probes and templates for protein production, and the use of proteins, fusion protein carriers and peptides in various immunological and diagnostic applications.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: June 20, 2000
    Assignees: The University of Florida, Bachem Bioscience, Ing., Biomolecular Research Institute, Regents of the University of California
    Inventors: William R. Kem, Michael W. Pennington, Raymond S. Norton, K. George Chandy, Katalin Kalman