Patents Assigned to Protgen Ltd.
  • Publication number: 20140056966
    Abstract: The present invention provides an anti-tumor or anti-angiogenesis medicament, the combination or kit containing the medicament, and the method for producing the same. The anti-tumor or anti-angiogenesis medicament contains a conjugate comprising a modifying agent and the angiostatin or its fragments, wherein the conjugate exhibits prolonged in vivo half-life as compared to an unmodified angiostatin or its fragments. The modifying agent is selected from the group consisting of macromolecular polymers, protein molecules or fragments thereof, peptides, small molecules, or chemical substances of any other forms.
    Type: Application
    Filed: June 5, 2012
    Publication date: February 27, 2014
    Applicant: PROTGEN LTD.
    Inventors: Yongzhang LUO, Guodong Chang, Shuling Yang, Lei Gao, Yan Fu
  • Publication number: 20140037655
    Abstract: The present invention relates to a method of identifying cancer subjects, in particular human patients, who are suitable for anti-lymphangiogenesis therapy to prevent tumor growth and tumor metastasis. The present invention also relates to a new approach, which uses nucleolin as a bait to search and screen for lymphangiogenesis inhibitors or cancer suppressors, which function in a manner that is analogous to endostatin. The invention is based upon the discovery that nucleolin is specifically expressed on lymphangiogenic vessels and functions as a specific receptor for endostatin, and thus is involved in the signal transduction pathway of endostatin as an anti-lymphangiogenesis inhibitor. The present invention also discloses that cell surface nucleolin on lymphatic endothelial cells is a biomarker for lymphangiogenic vessels, which could be used for the prediction of tumor metastasis.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 6, 2014
    Applicants: Protgen Ltd., Tsinghua University
    Inventors: YONGZHANG LUO, Wei Zhuo, Yan Fu, Guodong Chang
  • Publication number: 20130243757
    Abstract: The present invention relates to the diagnosis and treatment of cancer, and specifically to a method of diagnosing the presence, status or metastasis of cancer by detecting plasma Hsp90? having the amino acid sequence of SEQ ID NO:1 as a tumor marker. In addition, the present invention also relates to a method for the treatment of cancer and metastasis.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 19, 2013
    Applicants: Protgen Ltd., Tsinghua University
    Inventors: Yongzhang Luo, Xiaomin Song, Xiaofeng Wang, Wei Zhuo, Guodong Chang, Yan Fu
  • Patent number: 8389684
    Abstract: The present invention relates to the diagnosis and treatment of cancer, and specifically to a method of diagnosing the presence or metastasis of cancer by detecting plasma Hsp90? having the amino acid sequence of SEQ ID No. 1 as a tumor marker. In addition, the present invention also relates to a method for the treatment of cancer and metastasis.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: March 5, 2013
    Assignees: Tsinghua University, Protgen Ltd.
    Inventors: Yongzhang Luo, Xiaomin Song, Xiaofeng Wang, Wei Zhuo, Guodong Chang, Yan Fu
  • Publication number: 20130023479
    Abstract: The present invention relates to a method of identifying cancer subjects, in particular human patients, who are suitable for anti-lymphangiogenesis therapy to prevent tumor growth and tumor metastasis. The present invention also relates to a new approach, which uses nucleolin as a bait to search and screen for lymphangiogenesis inhibitors or cancer suppressors, which function in a manner that is analogous to endostatin. The invention is based upon the discovery that nucleolin is specifically expressed on lymphangiogenic vessels and functions as a specific receptor for endostatin, and thus is involved in the signal transduction pathway of endostatin as an anti-lymphangiogenesis inhibitor. The present invention also discloses that cell surface nucleolin on lymphatic endothelial cells is a biomarker for lymphangiogenic vessels, which could be used for the prediction of tumor metastasis.
    Type: Application
    Filed: July 20, 2012
    Publication date: January 24, 2013
    Applicants: Protgen Ltd., Tsinghua University
    Inventors: Yongzhang Luo, Wei Zhuo, Yan Fu, Guodong Chang
  • Publication number: 20120064078
    Abstract: The present invention relates to the diagnosis and treatment of cancer, and specifically to a method of diagnosing the presence or metastasis of cancer by detecting plasma Hsp90? having the amino acid sequence of SEQ ID No.1 as a tumor marker. In addition, the present invention also relates to a method for the treatment of cancer and metastasis.
    Type: Application
    Filed: September 13, 2010
    Publication date: March 15, 2012
    Applicants: PROTGEN LTD., TSINGHUA UNIVERSITY
    Inventors: Yongzhang LUO, Xiaomin SONG, Xiaofeng WANG, Wei ZHUO, Guodong CHANG, Yan FU
  • Publication number: 20100184661
    Abstract: The present invention provides an anti-tumor or anti-angiogenesis medicament, the combination or kit containing the medicament, and the method for producing the same. The anti-tumor or anti-angiogenesis medicament contains a conjugate comprising a modifying agent and the angiostatin or its fragments, wherein the conjugate exhibits prolonged in vivo half-life as compared to an unmodified angiostatin or its fragments. The modifying agent is selected from the group consisting of macromolecular polymers, protein molecules or fragments thereof, peptides, small molecules, or chemical substances of any other forms.
    Type: Application
    Filed: January 10, 2008
    Publication date: July 22, 2010
    Applicant: Protgen Ltd.
    Inventors: Yongzhang Luo, Guodong Chang, Shuling Yang, Lei Gao, Yan Fu