Patents by Inventor Garth Powis

Garth Powis 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: 20090087441
    Abstract: Novel wortmannin analogs and their use in inhibiting PI-3-kinase activity in mammals and the treatment or prevention of cancer and tumor formation in a subject are described herein. Preferably, the wortmannin analogs may be administered with other chemotherapeutic agents in the treatment of cancer.
    Type: Application
    Filed: September 23, 2008
    Publication date: April 2, 2009
    Applicants: Prolx Pharmaceuticals Corp., Arizona Board of Regents, acting on hehalf of The University of Arizona, The University of Pittsburgh
    Inventors: Lynn Kirkpatrick, Garth Powis, Peter Wipf
  • Patent number: 7446124
    Abstract: Novel wortmannin analogs and their use in inhibiting PI-3-kinase activity in mammals and the treatment or prevention of cancer and tumor formation in a subject are described herein. Preferably, the wortmannin analogs may be administered with other chemotherapeutic agents in the treatment of cancer.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: November 4, 2008
    Assignees: Prolx Pharmaceuticals Corp., The University of Pittsburgh, Arizona Board of Regents, Acting on Behalf of the University of Arizona
    Inventors: Lynn Kirkpatrick, Garth Powis, Peter Wipf
  • Patent number: 7399785
    Abstract: This invention relates to compounds which are N-oxides and derivatives thereof, as well as their use to treat HIF related diseases.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: July 15, 2008
    Assignee: Prolx Pharmaceuticals Corp.
    Inventors: Lynn Kirkpatrick, Garth Powis, Sarah J. Welsh
  • Publication number: 20080125479
    Abstract: Novel Wortmannin analogs and their use in inhibiting inhibiting PI-3-kinase activity in mammals as well, as tumor formation in a subject are described herein.
    Type: Application
    Filed: September 20, 2007
    Publication date: May 29, 2008
    Inventors: Garth Powis, Peter Wipf
  • Patent number: 7335679
    Abstract: Novel Wortmannin analogs and their use in inhibiting inhibiting PI-3-kinase activity in mammals as well as tumor formation in a subject are described herein.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: February 26, 2008
    Assignees: Arizona Board of Regents on behalf of the University of Arizona, University of Pittsburgh
    Inventors: Garth Powis, Peter Wipf
  • Publication number: 20070213398
    Abstract: The present invention relates to the preparation and biological activity of 3-deoxy-Dmyo-inositol ether lipid analogs as inhibitors of phosphatidylinositol-3-kinase signaling and cancer cell growth. The compounds of the present invention are useful as anti-tumor 5 agents which effectively inhibit the growth of mammalian cells.
    Type: Application
    Filed: December 22, 2006
    Publication date: September 13, 2007
    Inventors: Alan Kozikowski, Lixin Qiao, Garth Powis
  • Publication number: 20070191466
    Abstract: Novel metabolites of wortmannin and wortmannin analogs and their use in inhibiting PI-3 kinase activity in mammals and the treatment and prevention of cancer or tumor formation in a subject are described herein.
    Type: Application
    Filed: December 29, 2006
    Publication date: August 16, 2007
    Inventor: Garth Powis
  • Patent number: 7153843
    Abstract: The present invention relates to the preparation and biological activity of 3-deoxy-Dmyo-inositol ether lipid analogs as inhibitors of phosphatidylinositol-3-kinase signaling and cancer cell growth. The compounds of the present invention are useful as anti-tumor 5 agents which effectively inhibit the growth of mammalian cells.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: December 26, 2006
    Assignees: Georgetown University, Arizona Board of Regents on behalf of the University of Arizona
    Inventors: Alan P. Kozikowski, Lixin Qiao, Garth Powis
  • Publication number: 20060167080
    Abstract: Novel Wortmannin analogs and their use in inhibiting inhibiting PI-3-kinase activity in mammals as well as tumor formation in a subject are described herein.
    Type: Application
    Filed: April 7, 2006
    Publication date: July 27, 2006
    Inventors: Garth Powis, Peter Wipf
  • Patent number: 7081475
    Abstract: Novel Wortmannin analogs and their use in inhibiting inhibiting PI-3-kinase activity in mammals as well as tumor formation in a subject are described herein.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: July 25, 2006
    Assignees: Prolx Pharmaceuticals Corp., Arizona Board of Regents, Acting on behalf of the University of Arizona, University of Pittsburgh
    Inventors: Garth Powis, Wipf Peter
  • Publication number: 20060104902
    Abstract: The present invention generally relates to methods of preselecting patients for treatment with an anti-VEGF therapy, anti-HIF-1 therapy or anti-thioredoxin therapy. Aspects of the invention combine methods of dynamic contrast enhanced-MRI and diffusion weighted-MRI for the detection of tumor histology. The methodology disclosed herein detects tissue blood volume, tumor vascularity, and abnormal capillary permeability, thereby determining tumor vascularity to determine whether a patient should be administered such therapy.
    Type: Application
    Filed: August 17, 2005
    Publication date: May 18, 2006
    Inventors: Garth Powis, Lynn Kirkpatrick, Robert Gillies, Benedicte Jordan
  • Publication number: 20060063824
    Abstract: Novel wortmannin analogs and their use in inhibiting PI-3-kinase activity in mammals and the treatment or prevention of cancer and tumor formation in a subject are described herein. Preferably, the wortmannin analogs may be administered with other chemotherapeutic agents in the treatment of cancer.
    Type: Application
    Filed: July 11, 2005
    Publication date: March 23, 2006
    Inventors: Lynn Kirkpatrick, Garth Powis, Peter Wipf
  • Publication number: 20050049309
    Abstract: The hypoxia inducible factor-1 (HIF-1) transcription factor is an important regulator of the cellular response to hypoxia. The activity of HIF-1 is regulated by the level of the HIF-1? subunit, HIF-1?, which is rapidly degraded under normoxic conditions by the ubiquitin-proteasome pathway. HIF-1? levels increase under hypoxic conditions. Many human cancers also show constitutively increased HIF-1? levels. PX-478 or S-2-amino-3-[4?-N,N,-bis(2-chloroethyl)amino]phenyl propionic acid N-oxide dihydrochloride, is a novel anticancer agent, and is capably of decreasing both constitutive and hypoxia induced HIF-1? protein levels and HIF-1 transactivation in vitro and in vivo. In method embodiments, the administration of PX-478 is independent of the pathways of HIF-1? regulation involving the von Hippel-Lindau protein and p53. PX-478 causes an increase in polyubiquitinated HIF-1? levels due to inhibition of HIF-1? deubiquitination.
    Type: Application
    Filed: July 14, 2004
    Publication date: March 3, 2005
    Inventors: Lynn Kirkpatrick, Garth Powis, Sarah Welsh
  • Publication number: 20050026872
    Abstract: This invention relates to compounds which are N-oxides and derivatives thereof, as well as their use to treat HIF related diseases.
    Type: Application
    Filed: August 30, 2004
    Publication date: February 3, 2005
    Inventors: Lynn Kirkpatrick, Garth Powis, Sarah Welsh
  • Publication number: 20040192770
    Abstract: The present invention relates to the preparation and biological activity of 3-deoxy-Dmyo-inositol ether lipid analogs as inhibitors of phosphatidylinositol-3-kinase signaling and cancer cell growth. The compounds of the present invention are useful as anti-tumor 5 agents which effectively inhibit the growth of mammalian cells.
    Type: Application
    Filed: December 11, 2003
    Publication date: September 30, 2004
    Inventors: Alan P. Kozikowski, Lixin Qiao, Garth Powis
  • Publication number: 20040116496
    Abstract: The present invention is directed to a composition or formulation which includes an asymmetric disulfide which alone or in combination inhibits or interferes with cellular redox function, as well as a method of using same to restore normal cellular function. More specifically, the composition of the present invention are delivered to the patient over a period of time and interact with, interfere with, or inhibit abnormal cellular proliferation and restores or prevents inhibition of cellular apoptosis.
    Type: Application
    Filed: July 10, 2003
    Publication date: June 17, 2004
    Inventors: Lynn Kirkpatrick, Garth Powis
  • Publication number: 20040087556
    Abstract: This invention relates to compounds which are N-oxides and derivatives thereof, as well as their use to treat HIF related diseases.
    Type: Application
    Filed: November 6, 2002
    Publication date: May 6, 2004
    Inventors: Lynn Kirkpatrick, Garth Powis, Sarah J. Welsh
  • Patent number: 6703414
    Abstract: A method of inhibiting restenosis in a subject following coronary angioplasty, atherectomy, or arterial bypass graft surgery comprised of administering wortmannin analogs of the present invention is described herein.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: March 9, 2004
    Assignee: Arizona Board of Regents on behalf of the University of Arizona
    Inventors: Garth Powis, Robert Abraham
  • Patent number: 6689775
    Abstract: The present invention relates to the use of thioredoxin as, inter alia, a cell growth stimulator, as well as a screen for agents that are useful in reducing or preventing thioredoxin-associated apoptosis inhibition and agents that are useful in inhibiting thioredoxin stimulated cell growth.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: February 10, 2004
    Assignee: Arizona Board of Regents, acting on behalf of the University of Arizona
    Inventor: Garth Powis
  • Patent number: 6667340
    Abstract: The present invention relates to the preparation and biological activity of 3-deoxy-Dmyo-inositol ether lipid analogs as inhibitors of phosphatidylinositol-3-kinase signaling and cancer cell growth. The compounds of the present invention are useful as anti-tumor 5 agents which effectively inhibit the growth of mammalian cells.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: December 23, 2003
    Assignees: Arizona Board of Regents on behalf of the University of Arizona, Georgetown University School of Medicine
    Inventors: Alan P. Kozikowski, Lixin Qiao, Garth Powis