Patents by Inventor Valerian E. Kagan

Valerian E. Kagan 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: 20140107317
    Abstract: The present invention provides a composition and related methods for delivering cargo to a mitochondria which includes (a) a membrane active peptidyl fragment having a high affinity with the mitochondria and (b) cargo. The cargo may be selected from a wide variety of desired cargoes which are to be delivered to the mitochondria for a specific purpose. Compositions and methods are disclosed for treating an illness that is caused or associated with cellular damage or dysfunction which is caused by excessive mitochondrial production of reaction oxygen species (ROS). Compositions which act as mitochondria-selective targeting agents using the structural signaling of the ?-turn recognizable by cells as mitochondria) targeting sequences are discussed. Mitochondria and cell death by way of apoptosis is inhibited as a result of the ROS-scavenging activity, thereby increasing the survival rate of the patient.
    Type: Application
    Filed: October 21, 2013
    Publication date: April 17, 2014
    Applicant: University of Pittsburgh - Of the Commonwealth System of Higher Education
    Inventors: Peter Wipf, Jingbo Xiao, Mitchell P. Fink, Valerian E. Kagan, Yulia Y. Tyurina, Anthony J. Kanai
  • Patent number: 8530227
    Abstract: A method of degrading carbon nanomaterials includes mixing the carbon nanomaterials with a composition comprising a peroxide substrate and at least one catalyst selected from the group of an enzyme and an enzyme analog. The peroxide substrate undergoes a reaction in the presence of the catalyst to produce an agent interactive with the nanotubes to degrade the carbon nanomaterials. The peroxide substrate can, for example, be hydrogen peroxide or an organic peroxide.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: September 10, 2013
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Alexander Star, Valerian E. Kagan, Brett Lee Allen
  • Publication number: 20110039792
    Abstract: The present invention provides a composition and related methods for delivering cargo to a mitochondria which includes (a) a membrane active peptidyl fragment having a high affinity with the mitochondria and (b) cargo. The cargo may be selected from a wide variety of desired cargos which are to be delivered to the mitochondria for a specific purpose. Compositions and methods are disclosed for treating an illness that is caused or associated with cellular damage or dysfunction which is caused by excessive mitochondrial production of reaction oxygen species (ROS). Compositions which act as mitochondria-selective targeting agents using the structural signaling of the ?-turn recognizable by cells as mitochondria) targeting sequences are discussed. Mitochondria and cell death by way of apoptosis is inhibited as a result of the ROS-scavenging activity, thereby increasing the survival rate of the patient.
    Type: Application
    Filed: March 31, 2010
    Publication date: February 17, 2011
    Inventors: Peter Wipf, Jingbo Xiao, Michell P. Fink, Valerian E. Kagan, Yulia Y. Tyurina, Anthony J. Kanai
  • Publication number: 20100190239
    Abstract: A method of degrading carbon nanomaterials includes mixing the carbon nanomaterials with a composition comprising a peroxide substrate and at least one catalyst selected from the group of an enzyme and an enzyme analog. The peroxide substrate undergoes a reaction in the presence of the catalyst to produce an agent interactive with the nanotubes to degrade the carbon nanomaterials. The peroxide substrate can, for example, be hydrogen peroxide or an organic peroxide.
    Type: Application
    Filed: October 21, 2009
    Publication date: July 29, 2010
    Inventors: ALEXANDER STAR, VALERIAN E. KAGAN, BRETT LEE ALLEN
  • Patent number: 7718603
    Abstract: The present invention provides a composition and related methods for delivering cargo to a mitochondria which includes (a) a membrane active peptidyl fragment having a high affinity with the mitochondria and (b) cargo. The cargo may be selected from a wide variety of desired cargos which are to be delivered to the mitochondria for a specific purpose. Compositions and methods are disclosed for treating an illness that is caused or associated with cellular damage or dysfunction which is caused by excessive mitochondrial production of reaction oxygen species (ROS). Compositions which act as mitochondria-selective targeting agents using the structural signaling of the ?-turn recognizable by cells as mitochondria) targeting sequences are discussed. Mitochondria and cell death by way of apoptosis is inhibited as a result of the ROS-scavenging activity, thereby increasing the survival rate of the patient.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: May 18, 2010
    Assignee: University of Pittsburgh-Of the Commonwealth System of Higher Education
    Inventors: Peter Wipf, Jingbo Xiao, Mitchell P. Fink, Valerian E. Kagan, Yulia Y. Tyurina, Anthony J. Kanai
  • Patent number: 7528174
    Abstract: Compositions and methods are disclosed for treating an illness that is caused or associated with cellular damage or dysfunction which is caused by excessive mitochondrial production of reaction oxygen species (ROS). Compositions which act as mitochondria-selective targeting agents using specific structural signaling features recognizable by cells as mitochondrial targeting sequences are discussed. A method for delivering these agents effectively into cells and mitochondria where they act as electron scavengers by way of certain targeting sequences is also disclosed. Mitochondria dysfunction and cell death by way of apoptosis is inhibited as a result of the ROS-scavenging activity, thereby increasing the survival rate of the patient. In a preferred embodiment, the compositions and methods may be administered therapeutically in the field to patients with profound hemorrhagic shock so that survival could be prolonged until it is feasible to obtain surgical control of the bleeding vessels.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: May 5, 2009
    Assignee: University of Pittsburgh-Of The Commonwealth System of Higher Education
    Inventors: Peter Wipf, Jingbo Xiao, Mitchell P. Fink, Valerian E. Kagan, Yulia Y. Tyurina
  • Publication number: 20080187511
    Abstract: The invention provides an oil-based pharmaceutical composition comprising as an active ingredient phostphatidylserine or a derivative thereof and a pharmaceutically acceptable oil-based carrier, which is formulated for topical or intratumoral administration. Preferably, the composition is an ointment or a cream. The composition can contain additional active agents as well, such as aminophospholipid translocase inhibitors, transnitrosylating agents, chemokines, cytokines, Toll-like receptor ligands, imidazoquinolines, dendritic cell differentiation factors, or combinations thereof. In another aspect, the invention provides a method of treating cancer within a patient in need of treatment by administering the inventive composition to the patient.
    Type: Application
    Filed: October 25, 2007
    Publication date: August 7, 2008
    Applicants: System of Higher Education
    Inventors: Michael R. Shurin, Valerian E. Kagan, Galina V. Shurin, Yulia Tyurina
  • Publication number: 20070161573
    Abstract: Compositions and methods are disclosed for treating an illness that is caused or associated with cellular damage or dysfunction which is caused by excessive mitochondrial production of reaction oxygen species (ROS). Compositions which act as mitochondria-selective targeting agents using specific structural signaling features recognizable by cells as mitochondrial targeting sequences are discussed. A method for delivering these agents effectively into cells and mitochondria where they act as electron scavengers by way of certain targeting sequences is also disclosed. Mitochondria dysfunction and cell death by way of apoptosis is inhibited as a result of the ROS-scavenging activity, thereby increasing the survival rate of the patient. In a preferred embodiment, the compositions and methods may be administered therapeutically in the field to patients with profound hemorrhagic shock so that survival could be prolonged until it is feasible to obtain surgical control of the bleeding vessels.
    Type: Application
    Filed: August 17, 2006
    Publication date: July 12, 2007
    Inventors: Peter Wipf, Jingbo Xiao, Mitchell P. Fink, Valerian E. Kagan, Yulia Y. Tyurina
  • Publication number: 20070161544
    Abstract: The present invention relates to compositions and methods for providing mitochondria-selective targeting agents covalently linked to desired cargo such as radical scavenging agents. Compositions and methods are disclosed for treating an illness that is caused or associated with cellular damage or dysfunction which is caused by excessive mitochondrial production of reaction oxygen species (ROS). Compositions which act as mitochondria-selective targeting agents using specific structural signaling features recognizable by cells as mitochondrial targeting sequences are discussed. A method for delivering these agents effectively into cells and mitochondria where they act as electron scavengers by way of certain targeting sequences is also disclosed. Mitochondria and cell death by way of apoptosis is inhibited as a result of the ROS-scavenging activity, thereby increasing the survival rate of the patient.
    Type: Application
    Filed: August 18, 2006
    Publication date: July 12, 2007
    Inventors: Peter Wipf, Jingbo Xiao, Mitchell P. Fink, Valerian E. Kagan, Yulia Y. Tyurina, Anthony J. Kanai