Patents by Inventor Pu Xia

Pu Xia 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: 20080279897
    Abstract: The present invention relates generally to a method of modulating hyperglycaemia-induced endothelial cell functioning and agents useful for same. More particularly, the present invention relates to a method of modulating hyperglycaemia-induced vascular endothelial cell functioning by modulating intracellular sphingosine kinase-mediated signalling. The method of the present invention is useful, inter alia, in the treatment and/or prophylaxis of the adverse vascular endothelial cell functioning associated with conditions characterised by hyperglycaemia, and/or diabetes mellitus, per se.
    Type: Application
    Filed: January 17, 2006
    Publication date: November 13, 2008
    Applicant: MEDVET SCIENCE PTY. LTD.
    Inventors: Pu Xia, Lijun Wang, Mathew Alexander Vadas
  • Publication number: 20080279841
    Abstract: The present invention relates generally to a sphingosine kinase variant and to derivatives, analogues, chemical equivalents and mimetics thereof exhibiting reduced catalytic activity and, more particularly, to sphingosine kinase variants which exhibit a reduced capacity to phosphorylate sphingosine to sphingosine-1-phosphate. The present invention also contemplates genetic sequences encoding said sphingosine kinase variants and derivatives, analogues and mimetics thereof. The variants of the present invention are useful in a range of therapeutic and prophylactic applications.
    Type: Application
    Filed: June 20, 2001
    Publication date: November 13, 2008
    Applicant: MEDVET SCIENCE PTY LTD.
    Inventors: Stuart Pitson, Paul Moretti, Julia Zebol, Pu Xia, Jennifer Gamble, Mathew Vadas, Richard D'Andrea, Binks Wattenberg
  • Publication number: 20070265196
    Abstract: The present invention relates generally to a method of modulating the proinflammatory activity of C-reactive protein in endothelial cells. More particularly, the present invention relates to down-regulation of proinflammatory activity of C-reactive protein in vascular endothelial cells. Accordingly, the method of the present invention is useful, inter alia, in the treatment and/or prophylaxis of inflammatory conditions, particularly conditions characterised by proinflammatory activity of C-reactive protein in endothelial cells.
    Type: Application
    Filed: January 21, 2005
    Publication date: November 15, 2007
    Applicant: MEDVET SCIENCE PTY., LTD.
    Inventors: Pu Xia, Carol Wadham, Mathew Vadas
  • Publication number: 20070071752
    Abstract: The present invention relates generally to novel protein molecules and to derivatives, analogues, chemical equivalents and mimetics thereof capable of modulating cellular activity and, in particular, modulating cellular activity via the modulation of signal transduction. More particularly, the present invention relates to human sphingosine kinase and to derivatives, analogues, chemical equivalents and mimetics thereof. The present invention also contemplates genetic sequences encoding said protein molecules and derivatives, analogues, chemical equivalents and mimetics thereof. The molecules of the present invention are useful in a range of therapeutic, prophylactic and diagnostic applications.
    Type: Application
    Filed: September 26, 2006
    Publication date: March 29, 2007
    Applicant: Johnson & Johnson Pharmaceutical R and D LLC
    Inventors: Stuart Pitson, Brian Wattenberg, Pu Xia, Richard D'Andrea, Jennifer Gamble, Matthew Vadas
  • Patent number: 7172879
    Abstract: The invention relates to detection of sphingosine kinase activity and sphingosine kinase agonist or antagonist activity.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: February 6, 2007
    Assignee: Johnson & Johnson Pharmaceutical Research & Development LLP
    Inventors: Jennifer Gamble, Mathew Vadas, Pu Xia, Philip Barter, Kerry Anne Rye, Brian Wattenberg, Stuart Pitson
  • Patent number: 7112427
    Abstract: The present invention relates generally to novel protein molecules and to derivatives, analogues, chemical equivalents and mimetics thereof capable of modulating cellular activity and, in particular, modulating cellular activity via the modulation of signal transduction. More particularly, the present invention relates to human sphingosine kinase and to derivatives, analogues, chemical equivalents and mimetics thereof. The present invention also contemplates genetic sequences encoding said protein molecules and derivatives, analogues, chemical equivalents and mimetics thereof. The molecules of the present invention are useful in a range of therapeutic, prophylactic and diagnostic applications.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: September 26, 2006
    Assignee: Johnson & Johnson Pharmaceutical Research and Development LLC
    Inventors: Stuart Maxwell Pitson, Brian Wolff Wattenberg, Pu Xia, Richard James D'Andrea, Jennifer Ruth Gamble, Matthew Alexander Vadas
  • Publication number: 20060205688
    Abstract: The present invention relates generally to a method of modulating endothelial cell functional characteristics and to agents useful for same. More particularly, the present invention relates to a method of modulating vascular endothelial cell pro-inflammatory and angiogenic phenotypes by modulating the functional levels of intracellular sphingosine kinase. The method of the present invention is useful, inter alia, in relation to the treatment and/or prophylaxis of conditions which are characterised by inadequate endothelial cell functioning and may include conditions such as vascular engraftment, organ transplantation or wound healing or conditions which are characterised by an aberrant endothelial cell inflammatory or angiogenic phenotype. Further, the method of the present invention facilitates the development of agents, such as functionally manipulated endothelial cell populations, for a range of therapeutic and/or prophylactic uses.
    Type: Application
    Filed: October 14, 2003
    Publication date: September 14, 2006
    Applicant: Medvet Science Pty. Ltd.
    Inventors: Jennifer Gamble, Matthew Vadas, Stuart Pitson, Pu Xia, Vidya Limaye
  • Publication number: 20050100547
    Abstract: The present invention relates generally to a method of modulating cytokine-mediated cellular activity and to agents useful for same. More particularly, the present invention contemplates a method of modulating tumor necrosis factor-mediated cellular activity by modulating an intracellular sphingosine kinase-dependent signalling mechanism. The method of the present invention is useful, inter alia, in the treatment and/or prophylaxis of conditions characterised by aberrant, unwanted or otherwise inappropriate cytokine-mediated cellular activity The present invention is further directed to methods for identifying and/or designing agents capable of modulating the subject sphingosine kinase-dependent signalling mechanism.
    Type: Application
    Filed: June 3, 2002
    Publication date: May 12, 2005
    Inventors: Pu Xia, Lijun Wang, Mathew Vadas, Jennifer Gamble, Paul Moretti, Stuart Pitson
  • Publication number: 20050074830
    Abstract: The present invention relates generally to a method of modulating cellular activity and agents useful for same. More particularly, the present invention contemplates a method of modulating endothelial cell activity and even more particularly endothelial cell adhesion molecule expression. Most particularly, the present invention provides a method of treating coronary heart disease by preventing or reducing endothelial cell adhesion molecule expression.
    Type: Application
    Filed: October 7, 2003
    Publication date: April 7, 2005
    Inventors: Jennifer Gamble, Mathew Vadas, Pu Xia, Phillip Barter, Kerry-Anne Rye, Brian Wattenberg, Stuart Pitson
  • Publication number: 20050009732
    Abstract: A method of modulating the growth of a cell, such as a neoplastic or malignant cell from the colon, stomach, lung, brain, bone, esophagus, pancreas, breast, ovary or uterus includes contacting the cell with an agent for a time and under conditions sufficient to modulate the functional activity of sphingosine kinase in which down-regulation of the functional activity of the sphingosine kinase down-regulates growth of the cells and up-regulation of the functional activity of this sphingosine kinase up-regulates the growth of the cell. The down-regulation can reduce the functional activity of this sphingosine kinase to an oncogenic ineffective level.
    Type: Application
    Filed: February 19, 2004
    Publication date: January 13, 2005
    Applicant: Medvet Science Pty Ltd.
    Inventors: Mathew Vadas, Jennifer Gamble, Pu Xia, Lijun Wang, Olga Sukocheva
  • Publication number: 20040132053
    Abstract: The present invention relates generally to novel protein molecules and to derivatives, analogues, chemical equivalents and mimetics thereof capable of modulating cellular activity and, in particular, modulating cellular activity via the modulation of signal transduction. More particularly, the present invention relates to human sphingosine kinase and to derivatives, analogues, chemical equivalents and mimetics thereof. The present invention also contemplates genetic sequences encoding said protein molecules and derivatives, analogues, chemical equivalents and mimetics thereof. The molecules of the present invention are useful in a range of therapeutic, prophylactic and diagnostic applications.
    Type: Application
    Filed: August 18, 2003
    Publication date: July 8, 2004
    Applicant: Johnson & Johnson Pharmaceutical R and D LLC
    Inventors: Stuart Maxwell Pitson, Brian Wolff Wattenberg, Pu Xia, Richard James D'Andrea, Jennifer Ruth Gamble, Matthew Alexander Vadas
  • Patent number: 6730480
    Abstract: The present invention relates generally to novel protein molecules and to derivatives, analogues, chemical equivalents and mimetics thereof capable of modulating cellular activity and, in particular, modulating cellular activity via the modulation of signal transduction. More particularly, the present invention relates to human sphingosine kinase and to derivatives, analogues, chemical equivalents and mimetics thereof. The present invention also contemplates genetic sequences encoding said protein molecules and derivatives, analogues, chemical equivalents and mimetics thereof. The molecules of the present invention are useful in a range of therapeutic, prophylactic and diagnostic application.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: May 4, 2004
    Assignee: Johnson & Johnson Pharmaceutical Research and Development LLC
    Inventors: Stuart Maxwell Pitson, Brian Wolff Wattenberg, Pu Xia, Richard James D'Andrea, Jennifer Ruth Gamble, Matthew Alexander Vadas
  • Publication number: 20040014635
    Abstract: The present invention relates generally to a method of modulating the growth of cells and, more particularly, to a method of down-regulating the growth of neoplastic cells. The present invention is useful, inter alia, in the therapeutic and/or prophylactic treatment of cancers such as, but not limited to, solid cancers such as cancers of the colon, stomach, lung, brain, bone, oesophagus, pancreas, breast, ovary or uterus.
    Type: Application
    Filed: June 25, 2003
    Publication date: January 22, 2004
    Inventors: Mathew Vadas, Jennifer Gamble, Pu Xia, Lijen Wang
  • Patent number: 6649362
    Abstract: A screening method for identifying a therapeutic candidate for a coronary heart disease or an inflammatory condition is disclosed. The screening method tests for the presence or absence of an effect by a putative therapeutic agent on a component of a sphingosine kinase signaling pathway.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: November 18, 2003
    Assignee: Medvet Science Pty. Ltd.
    Inventors: Jennifer Gamble, Mathew Vadas, Pu Xia, Phillip Barter, Kerry-Anne Rye, Brian Wattenberg, Stuart Pitson
  • Publication number: 20020051777
    Abstract: The present invention relates generally to a method of modulating cellular activity and agents useful for same. More particularly, the present invention contemplates a method of modulating endothelial cell activity and even more particularly endothelial cell adhesion molecule expression. Most particularly, the present invention provides a method of treating coronary heart disease by preventing or reducing endothelial cell adhesion molecule expression.
    Type: Application
    Filed: October 16, 2001
    Publication date: May 2, 2002
    Inventors: Jennifer Gamble, Mathew Vadas, Pu Xia, Phillip Barter, Kerry-Anne Rye, Brian Wattenberg, Stuart Pitson