Patents by Inventor Chien-Tsun Kuan

Chien-Tsun Kuan 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: 20210317532
    Abstract: We found mutations of the R132 residue of isocitrate dehydrogenase 1 (IDH1) in the majority of grade II and III astrocytomas and oligodendrogliomas as well as in gliblastomas that develop from these lower grade lesions. Those tumors without mutations in IDH1 often had mutations at the analogous R172 residue of the closely related IDH2 gene. These findings have important implications for the pathogenesis and diagnosis of malignant gliomas.
    Type: Application
    Filed: November 6, 2020
    Publication date: October 14, 2021
    Inventors: Bert Vogelstein, Kenneth W. Kinzler, D. Williams Parsons, Xiaosong Zhang, Jimmy Cheng-Ho Lin, Rebecca J. Leary, Philipp Angenendt, Nickolas Papadopoulos, Victor Velculescu, Giovanni Parmigiani, Rachel Karchin, Sian Jones, Hai Yan, Darell Bigner, Chien-Tsun Kuan, Gregory J. Riggins
  • Patent number: 10894987
    Abstract: We found mutations of the R132 residue of isocitrate dehydrogenase 1 (IDH1) in the majority of grade II and III astrocytomas and oligodendrogliomas as well as in glioblastomas that develop from these lower grade lesions. Those tumors without mutations in IDH1 often had mutations at the analogous R172 residue of the closely related IDH2 gene. These findings have important implications for the pathogenesis and diagnosis of malignant gliomas.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: January 19, 2021
    Assignees: The Johns Hopkins University, Duke University
    Inventors: Bert Vogelstein, Kenneth W. Kinzler, D. Williams Parsons, Xiaosong Zhang, Jimmy Cheng-Ho Lin, Rebecca J. Leary, Philipp Angenendt, Nickolas Papadopoulos, Victor Velculescu, Giovanni Parmigiani, Rachel Karchin, Sian Jones, Hai Yan, Darell D. Bigner, Chien-Tsun Kuan, Gregory J. Riggins
  • Patent number: 10837064
    Abstract: We found mutations of the R132 residue of isocitrate dehydrogenase 1 (IDH1) in the majority of grade II and III astrocytomas and oligodendrogliomas as well as in gliblastomas that develop from these lower grade lesions. Those tumors without mutations in IDH1 often had mutations at the analogous R172 residue of the closely related IDH2 gene. These findings have important implications for the pathogenesis and diagnosis of malignant gliomas.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: November 17, 2020
    Assignees: The Johns Hopkins University, Duke University
    Inventors: Bert Vogelstein, Kenneth W. Kinzler, D. Williams Parsons, Xiaosong Zhang, Jimmy Cheng-Ho Lin, Rebecca J. Leary, Philipp Angenendt, Nickolas Papadopoulos, Victor Velculescu, Giovanni Parmigiani, Rachel Karchin, Sian Jones, Hai Yan, Darell Bigner, Chien-Tsun Kuan, Gregory J. Riggins
  • Patent number: 10752688
    Abstract: An anti-human T-cell immunoglobulin domain and mucin domain 3 (TIM-3) antibody, can bind the peptides, comprising the amino-acid sequence RKGDVSL (SEQ ID NO: 9) and/or EKFNLKL (SEQ ID NO: 10) of human TIM-3 protein. The antibody can regulate immune cell activity. The antibody or binding fragment thereof is useful in diagnosis, prognosis, and treatment of cancers that have been reported to express cell-surface TIM-3 such as lung, liver, esophageal cancer and solid tumors.
    Type: Grant
    Filed: December 30, 2017
    Date of Patent: August 25, 2020
    Assignee: DEVELOPMENT CENTER FOR BIOTECHNOLOGY
    Inventors: Yu-Chen Yang, Li-Yu Chen, Chia-Hua Li, Pei-Han Tai, Hong-Kai Chen, Ying-Yung Lok, Chih-Yung Hu, Chien-Tsun Kuan, Chung-Hsiun Wu
  • Patent number: 10704108
    Abstract: We found mutations of the R132 residue of isocitrate dehydrogenase 1 (IDH1) in the majority of grade II and III astrocytomas and oligodendrogliomas as well as in gliblastomas that develop from these lower grade lesions. Those tumors without mutations in IDH1 often had mutations at the analogous R172 residue of the closely related IDH2 gene. These findings have important implications for the pathogenesis and diagnosis of malignant gliomas.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: July 7, 2020
    Assignees: The Johns Hopkins University, Duke University
    Inventors: Bert Vogelstein, Kenneth W. Kinzler, D. Williams Parsons, Xiaosong Zhang, Jimmy Cheng-Ho Lin, Rebecca J. Leary, Philipp Angenendt, Nickolas Papadopoulos, Victor Velculescu, Giovanni Parmigiani, Rachel Karchin, Sian Jones, Hai Yan, Darell Bigner, Chien-Tsun Kuan, Gregory J. Riggins
  • Publication number: 20190309092
    Abstract: The present invention provides a modified antigen-binding Fab fragment. An antigen-binding molecule comprising the antigen-binding Fab fragment and a composition comprising the molecule are also provided.
    Type: Application
    Filed: July 20, 2017
    Publication date: October 10, 2019
    Applicant: Development Center for Biotechnology
    Inventors: Chih-Yung HU, Chao-Yang HUANG, Yu-Jung CHEN, Chia-Cheng WU, Chien-Tsun KUAN, Chia-Hsiang LO, Hsien-Yu TSAI
  • Publication number: 20190106752
    Abstract: We found mutations of the R132 residue of isocitrate dehydrogenase 1 (IDH1) in the majority of grade II and III astrocytomas and oligodendrogliomas as well as in gliblastomas that develop from these lower grade lesions. Those tumors without mutations in IDH1 often had mutations at the analogous R172 residue of the closely related IDH2 gene. These findings have important implications for the pathogenesis and diagnosis of malignant gliomas.
    Type: Application
    Filed: September 17, 2018
    Publication date: April 11, 2019
    Inventors: Bert Vogelstein, Kenneth W. Kinzler, D. Williams Parsons, Xiaosong Zhang, Jimmy Cheng-Ho Lin, Rebecca J. Leary, Philipp Angenendt, Nickolas Papadopoulos, Victor Velculescu, Giovanni Parmigiani, Rachel Karchin, Sian Jones, Hai Yan, Darell Bigner, Chien-Tsun Kuan, Gregory J. Riggins
  • Publication number: 20180362659
    Abstract: We have constructed a polynucleotide encoding a bispecific antibody engaging molecule which has one arm that specifically engages a tumor cell which expresses the human EGFRvIII mutant protein on its surface, and a second arm that specifically engages T cell activation ligand CD3. The polynucleotide is codon optimized for expression in CHO cells. The subunits of the engaging molecules are organized to achieve greater efficiency. These are promising therapeutic agents.
    Type: Application
    Filed: August 20, 2018
    Publication date: December 20, 2018
    Inventors: Darell D. Bigner, John Sampson, Chien-Tsun Kuan, Mingqing Cai, Bryan D. Choi, Patrick C. Gedeon, Ira H. Pastan
  • Patent number: 10138300
    Abstract: The present invention relates to an antibody or antigen-binding fragment thereof that bind human vascular endothelial growth factor receptor 2 (VEGFR-2). The present invention also relates to a method for inhibiting VEGFR-2-mediated signaling in a subject in need, a method for treating diseases and/or disorders caused by or related to VEGFR-2 activity and/or signaling in a subject afflicted with the diseases and disorders, a method for treating tumor in a subject afflicted with the tumor, a method for inhibiting cell proliferation of endothelial cells in a subject in need, and a method for detecting human vascular endothelial growth factor receptor in a sample.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: November 27, 2018
    Assignee: DEVELOPMENT CENTER FOR BIOTECHNOLOGY
    Inventors: Jiann-Shiun Lai, Li-Shuang Ai, Yan-Da Lai, Yen-Yu Wu, Yi-San Tsai, Yi-Jiue Tsai, Juo-Yu Huang, Cheng-Chou Yu, Chuan-Lung Hsu, Chien-Tsun Kuan, Szu-Liang Lai, Li-Ya Wang
  • Publication number: 20180282821
    Abstract: We found mutations of the R132 residue of isocitrate dehydrogenase 1 (IDH1) in the majority of grade II and III astrocytomas and oligodendrogliomas as well as in gliblastomas that develop from these lower grade lesions. Those tumors without mutations in IDH1 often had mutations at the analogous R172 residue of the closely related IDH2 gene. These findings have important implications for the pathogenesis and diagnosis of malignant gliomas.
    Type: Application
    Filed: March 22, 2018
    Publication date: October 4, 2018
    Inventors: Bert Vogelstein, Kenneth W. Kinzler, D. Williams Parsons, Xiaosong Zhang, Jimmy Cheng-Ho Lin, Rebecca J. Leary, Philipp Angenendt, Nickolas Papadopoulos, Victor Velculescu, Giovanni Parmigiani, Rachel Karchin, Sian Jones, Hai Yan, Darell Bigner, Chien-Tsun Kuan, Gregory J. Riggins
  • Patent number: 10072084
    Abstract: We tested the in vitro and in vivo efficacy of a recombinant bispecific immunotoxin that recognizes both EGFRwt and tumor-specific EGFRvIII receptors. A single chain antibody was cloned from a hybridoma and fused to toxin, carrying a C-terminal peptide which increases retention within cells. The binding affinity and specificity of the recombinant bispecific immunotoxin for the EGFRwt and the EGFRvIII proteins was measured. In vitro cytotoxicity was measured. In vivo activity of the recombinant bispecific immunotoxin was evaluated in subcutaneous models and compared to that of an established monospecific immunotoxin. In our preclinical studies, the bispecific recombinant immunotoxin, exhibited significant potential for treating brain tumors.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: September 11, 2018
    Assignees: Duke University, The United States of America as Represented by the Secretary Department of Health and Human Services (NIH)
    Inventors: Darell D. Bigner, Chien-Tsun Kuan, Ira H. Pastan, Charles Pegram
  • Patent number: 10052382
    Abstract: High affinity antibodies were made to gangliosides expressed on tumor cells. The antibodies can be used analytically, diagnostically, therapeutically, and theranostically. The antibodies may be used to target cytotoxic reagents to tumor cells, thus minimizing full-body toxicity. The antibodies may also be used with out added cytotoxin. The antibodies may be detectably labeled or labelable for analytic and diagnostic purposes. The combination of specificity and affinity of the antibodies render them particularly useful.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: August 21, 2018
    Assignees: Duke University, The United States of America as Represented by the Secretary of Health (NIH)
    Inventors: Darell Bigner, Chien-Tsun Kuan, Ira H. Pastan, Hailan Piao
  • Patent number: 10053514
    Abstract: We have constructed a polynucleotide encoding a bispecific antibody engaging molecule which has one arm that specifically engages a tumor cell which expresses the human EGFRvIII mutant protein on its surface, and a second arm that specifically engages T cell activation ligand CD3. The polynucleotide is codon optimized for expression in CHO cells. The subunits of the engaging molecules are organized to achieve greater efficiency. These are therapeutic agents.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: August 21, 2018
    Assignees: Duke University, The United States of America as Represented by the Secretary of Health and Human Services, National Institutes of Health
    Inventors: Darell D. Bigner, John Sampson, Chien-Tsun Kuan, Mingqing Cai, Bryan D. Choi, Patrick C. Gedeon, Ira H. Pastan
  • Publication number: 20180186884
    Abstract: The present invention relates to an antibody or antigen-binding fragment thereof that bind human vascular endothelial growth factor receptor 2 (VEGFR-2). The present invention also relates to a method for inhibiting VEGFR-2-mediated signaling in a subject in need, a method for treating diseases and/or disorders caused by or related to VEGFR-2 activity and/or signaling in a subject afflicted with the diseases and disorders, a method for treating tumor in a subject afflicted with the tumor, a method for inhibiting cell proliferation of endothelial cells in a subject in need, and a method for detecting human vascular endothelial growth factor receptor in a sample.
    Type: Application
    Filed: July 3, 2017
    Publication date: July 5, 2018
    Inventors: JIANN-SHIUN LAI, Li-Shuang Ai, Yan-Da Lai, Yen-Yu Wu, Yi-San Tsai, Yi-Jiue Tsai, Juo-Yu Huang, Cheng-Chou Yu, Chuan-Lung Hsu, Chien-Tsun Kuan, Szu-Liang Lai, Li-Ya Wang
  • Publication number: 20180186881
    Abstract: An anti-human T-cell immunoglobulin domain and mucin domain 3 (TIM-3) antibody, can bind the peptides, comprising the amino-acid sequence RKGDVSL (SEQ ID NO: 9) and/or EKFNLKL (SEQ ID NO: 10) of human TIM-3 protein. The antibody can regulate immune cell activity. The antibody or binding fragment thereof is useful in diagnosis, prognosis, and treatment of cancers that have been reported to express cell-surface TIM-3 such as lung, liver, esophageal cancer and solid tumors.
    Type: Application
    Filed: December 30, 2017
    Publication date: July 5, 2018
    Applicant: Development Center for Biotechnology
    Inventors: Yu-Chen Yang, Li-Yu CHEN, Chia-Hua LI, Pei-Han TAI, Hong-Kai CHEN, Ying-Yung LOK, Chih-Yung HU, Chien-Tsun KUAN, Chung-Hsiun WU
  • Publication number: 20170233480
    Abstract: The present invention relates to an antibody or antigen-binding fragment thereof that bind human vascular endothelial growth factor receptor 2 (VEGFR-2). The present invention also relates to a method for inhibiting VEGFR-2-mediated signaling in a subject in need, a method for treating diseases and/or disorders caused by or related to VEGFR-2 activity and/or signaling in a subject afflicted with the diseases and disorders, a method for treating tumor in a subject afflicted with the tumor, a method for inhibiting cell proliferation of endothelial cells in a subject in need, and a method for detecting human vascular endothelial growth factor receptor in a sample.
    Type: Application
    Filed: December 29, 2016
    Publication date: August 17, 2017
    Applicant: DEVELOPMENT CENTER FOR BIOTECHNOLOGY
    Inventors: JIANN-SHIUN LAI, LI-SHUANG AI, YAN-DA LAI, YEN-YU WU, YI-SAN TSAI, YI-JIUE TSAI, JUO-YU HUANG, CHENG-CHOU YU, CHUAN-LUNG HSU, CHIEN-TSUN KUAN, SZU-LIANG LAI, LI-YA WANG
  • Patent number: 9676858
    Abstract: We have constructed bispecific antibody engaging molecules which have one arm that specifically engages a tumor cell which expresses the human EGFRvIII mutant protein on its surface, and a second arm that specifically engages T cell activation ligand CD3. The engaging molecules are highly cytotoxic and antigen-specific. These may be used as therapeutic agents.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: June 13, 2017
    Assignees: Duke University, The United States of America as represented by the secretary, Department of Health and Human Services (NIH)
    Inventors: Darell Bigner, Chien-Tsun Kuan, John Sampson, Bryan Choi, Ira H. Pastan, Patrick C. Gedeon
  • Publication number: 20170081730
    Abstract: We found mutations of the R132 residue of isocitrate dehydrogenase 1 (IDH1) in the majority of grade II and III astrocytomas and oligodendrogliomas as well as in glioblastomas that develop from these lower grade lesions. Those tumors without mutations in IDH1 often had mutations at the analogous R172 residue of the closely related IDH2 gene. These findings have important implications for the pathogenesis and diagnosis of malignant gliomas.
    Type: Application
    Filed: November 16, 2016
    Publication date: March 23, 2017
    Applicants: The Johns Hopkins University, Duke University
    Inventors: Bert Vogelstein, Kenneth W. Kinzler, D. Williams Parsons, Xiaosong Zhang, Jimmy Cheng-Ho Lin, Rebecca J. Leary, Philipp Angenendt, Nickolas Papadopoulos, Victor Velculescu, Giovanni Parmigiani, Rachel Karchin, Sian Jones, Hai Yan, Darell D. Bigner, Chien-Tsun Kuan, Gregory J. Riggins
  • Publication number: 20170051064
    Abstract: We tested the in vitro and in vivo efficacy of a recombinant bispecific immunotoxin that recognizes both EGFRwt and tumor-specific EGFRvIII receptors. A single chain antibody was cloned from a hybridoma and fused to toxin, carrying a C-terminal peptide which increases retention within cells. The binding affinity and specificity of the recombinant bispecific immunotoxin for the EGFRwt and the EGFRvIII proteins was measured. In vitro cytotoxicity was measured. In vivo activity of the recombinant bispecific immunotoxin was evaluated in subcutaneous models and compared to that of an established monospecific immunotoxin. In our preclinical studies, the bispecific recombinant immunotoxin, exhibited significant potential for treating brain tumors.
    Type: Application
    Filed: October 11, 2016
    Publication date: February 23, 2017
    Applicants: Duke University, THE GOVERNMENT OF THE UNITED STATES AS REPRESENTED BY THE SECRETARY OF HEALTH AND HUMAN SERVICES , N
    Inventors: Darell D. Bigner, Chien-Tsun Kuan, Ira H. Pastan, Charles Pegram
  • Patent number: 9492564
    Abstract: We tested the in vitro and in vivo efficacy of a recombinant bispecific immunotoxin that recognizes both EGFRwt and tumor-specific EGFRvIII receptors. A single chain antibody was cloned from a hybridoma and fused to toxin, carrying a C-terminal peptide which increases retention within cells. The binding affinity and specificity of the recombinant bispecific immunotoxin for the EGFRwt and the EGFRvIII proteins was measured. In vitro cytotoxicity was measured. In vivo activity of the recombinant bispecific immunotoxin was evaluated in subcutaneous models and compared to that of an established monospecific immunotoxin. In our preclinical studies, the bispecific recombinant immunotoxin, exhibited significant potential for treating brain tumors.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: November 15, 2016
    Assignees: Duke University, The United States of America, as represented by the Secretary of Health and Human Services, National Institutes of Health
    Inventors: Darell Bigner, Chien-Tsun Kuan, Ira H. Pastan, Charles Peagram