Patents Assigned to Protgen Ltd.
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Publication number: 20180360922Abstract: The present invention discloses an anti-tumor conjugate and pharmaceutical composition or kits comprising the conjugate, as well as a method of producing the anti-tumor conjugate. The anti-tumor conjugate of the present invention is metabolically stable in vivo, and is ultimately available for the treatment of tumors and production of anti-tumor medicaments.Type: ApplicationFiled: July 2, 2018Publication date: December 20, 2018Applicants: TSINGHUA UNIVERSITY, PROTGEN LTD.Inventors: Yongzhang LUO, Qing HAN, Qingxin LEI, Guodong CHANG, Yan FU
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Patent number: 10054590Abstract: 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: GrantFiled: August 8, 2013Date of Patent: August 21, 2018Assignees: Tsinghua University, Protgen Ltd.Inventors: Yongzhang Luo, Wei Zhuo, Yan Fu, Guodong Chang
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Patent number: 9815906Abstract: 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: GrantFiled: February 13, 2015Date of Patent: November 14, 2017Assignees: TSINGHUA UNIVERSITY, PROTGEN LTD.Inventors: Yongzhang Luo, Xiaomin Song, Xiaofeng Wang, Wei Zhuo, Guodong Chang, Yan Fu
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Publication number: 20150259432Abstract: 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: ApplicationFiled: February 13, 2015Publication date: September 17, 2015Applicants: TSINGHUA UNIVERSITY, PROTGEN LTD.Inventors: Yongzhang LUO, Xiaomin SONG, Xiaofeng WANG, Wei ZHUO, Guodong CHANG, Yan FU
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Patent number: 8975030Abstract: 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: GrantFiled: March 4, 2013Date of Patent: March 10, 2015Assignees: Tsinghua University, Protgen Ltd.Inventors: Yongzhang Luo, Xiaomin Song, Xiaofeng Wang, Wei Zhuo, Guodong Chang, Yan Fu
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Publication number: 20140056966Abstract: 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: ApplicationFiled: June 5, 2012Publication date: February 27, 2014Applicant: PROTGEN LTD.Inventors: Yongzhang LUO, Guodong Chang, Shuling Yang, Lei Gao, Yan Fu
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Publication number: 20140037655Abstract: 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: ApplicationFiled: August 8, 2013Publication date: February 6, 2014Applicants: Protgen Ltd., Tsinghua UniversityInventors: YONGZHANG LUO, Wei Zhuo, Yan Fu, Guodong Chang
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Publication number: 20130243757Abstract: 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: ApplicationFiled: March 4, 2013Publication date: September 19, 2013Applicants: Protgen Ltd., Tsinghua UniversityInventors: Yongzhang Luo, Xiaomin Song, Xiaofeng Wang, Wei Zhuo, Guodong Chang, Yan Fu
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Patent number: 8389684Abstract: 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: GrantFiled: September 13, 2010Date of Patent: March 5, 2013Assignees: Tsinghua University, Protgen Ltd.Inventors: Yongzhang Luo, Xiaomin Song, Xiaofeng Wang, Wei Zhuo, Guodong Chang, Yan Fu
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Publication number: 20130023479Abstract: 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: ApplicationFiled: July 20, 2012Publication date: January 24, 2013Applicants: Protgen Ltd., Tsinghua UniversityInventors: Yongzhang Luo, Wei Zhuo, Yan Fu, Guodong Chang
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Publication number: 20120064078Abstract: 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: ApplicationFiled: September 13, 2010Publication date: March 15, 2012Applicants: PROTGEN LTD., TSINGHUA UNIVERSITYInventors: Yongzhang LUO, Xiaomin SONG, Xiaofeng WANG, Wei ZHUO, Guodong CHANG, Yan FU
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Publication number: 20100184661Abstract: 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: ApplicationFiled: January 10, 2008Publication date: July 22, 2010Applicant: Protgen Ltd.Inventors: Yongzhang Luo, Guodong Chang, Shuling Yang, Lei Gao, Yan Fu