Patents Assigned to Yamaguchi University
  • Patent number: 12129291
    Abstract: An object of the present invention is to provide: an anti-GPC3 antibody that recognizes an epitope different from that for existing antibodies (e.g., GC33 and GC199) and can specifically bind, even in the form of single chain antibody, to GPC3 localized on a cell membrane; CAR comprising the anti-GPC3 single chain antibody; an immunocompetent cell expressing the CAR; a gene of the anti-GPC3 antibody or a gene of the CAR; a vector comprising the anti-GPC3 antibody gene or the CAR gene; a host cell in which the vector has been introduced; a method for specifically detecting GPC3; and a kit for specifically detecting GPC3. An antibody comprising particular heavy chain CDR1 to CDR3 and particular light chain CDR1 to CDR3 defined in claim 1, and specifically binding to a human-derived GPC3 polypeptide specifically binds to GPC3 localized on a cell membrane. CAR-immunocompetent cells prepared on the basis of CAR comprising such single chain antibody are useful for cancer immunotherapy.
    Type: Grant
    Filed: June 15, 2023
    Date of Patent: October 29, 2024
    Assignees: Yamaguchi University, National Cancer Center, Noile-Immune Biotech, Inc.
    Inventors: Koji Tamada, Yukimi Sakoda, Tetsuya Nakatsura, Keigo Saito
  • Publication number: 20240269174
    Abstract: The present disclosure provides a composition comprising a nucleic acid delivery vehicle, a nucleic acid encoding interleukin-7 (IL-7), and a nucleic acid encoding chemokine (C-C motif) ligand 19 (CCL19), and its use thereof.
    Type: Application
    Filed: February 9, 2023
    Publication date: August 15, 2024
    Applicants: Yamaguchi University, National University Corporation Tottori University
    Inventors: Koji Tamada, Yukimi Sakoda, Keishi Adachi, Takafumi Nakamura
  • Publication number: 20240226157
    Abstract: It is to provide an immunocompetent cell that expresses regulatory factors of immunocompetent cell immune function and possesses all of proliferative potential, viability, and the ability to accumulate a T cell, and an expression vector of regulatory factors of immune function for generating the immunocompetent cell. An immunocompetent cell expressing a cell surface molecule specifically recognizing a cancer antigen, interleukin 7 (IL-7), and CCL19 is generated. Preferably, the cell surface molecule specifically recognizing a cancer antigen is T cell receptor specifically recognizing the cancer antigen, and the immunocompetent cell is a T cell.
    Type: Application
    Filed: January 26, 2024
    Publication date: July 11, 2024
    Applicant: Yamaguchi University
    Inventors: Koji Tamada, Yukimi Sakoda, Keishi Adachi
  • Publication number: 20240018224
    Abstract: An object of the present invention is to provide: an anti-GPC3 antibody that recognizes an epitope different from that for existing antibodies (e.g., GC33 and GC199) and can specifically bind, even in the form of single chain antibody, to GPC3 localized on a cell membrane; CAR comprising the anti-GPC3 single chain antibody; an immunocompetent cell expressing the CAR; a gene of the anti-GPC3 antibody or a gene of the CAR; a vector comprising the anti-GPC3 antibody gene or the CAR gene; a host cell in which the vector has been introduced; a method for specifically detecting GPC3; and a kit for specifically detecting GPC3. An antibody comprising particular heavy chain CDR1 to CDR3 and particular light chain CDR1 to CDR3 defined in claim 1, and specifically binding to a human-derived GPC3 polypeptide specifically binds to GPC3 localized on a cell membrane. CAR-immunocompetent cells prepared on the basis of CAR comprising such single chain antibody are useful for cancer immunotherapy.
    Type: Application
    Filed: June 15, 2023
    Publication date: January 18, 2024
    Applicants: Yamaguchi University, National Cancer Center, Noile-Immune Biotech, Inc.
    Inventors: Koji TAMADA, Yukimi SAKODA, Tetsuya NAKATSURA, Keigo SAITO
  • Publication number: 20230322898
    Abstract: The present invention provides a pharmaceutical composition comprising cells expressing a chimeric receptor, for use in combination with administration of an antigen-binding molecule, wherein the chimeric receptor comprises an extracellular domain, the extracellular domain comprises an extracellular domain of an immunoreceptor, an extracellular domain variant of an immunoreceptor, or a portion thereof, and the antigen-binding molecule is a multispecific antigen-binding molecule having a target antigen recognition site and an immunoreceptor recognition site which recognizes the immunoreceptor.
    Type: Application
    Filed: July 30, 2021
    Publication date: October 12, 2023
    Applicants: Chugai Seiyaku Kabushiki Kaisha, Yamaguchi University
    Inventors: Tomoyuki Igawa, Mika Sakurai, Takashi Suzuki, Kanako Tatsumi, Shun Shimizu, Koji Tamada, Yukimi Sakoda
  • Patent number: 11718663
    Abstract: An object of the present invention is to provide: an anti-GPC3 antibody that recognizes an epitope different from that for existing antibodies (e.g., GC33 and GC199) and can specifically bind, even in the form of single chain antibody, to GPC3 localized on a cell membrane; CAR comprising the anti-GPC3 single chain antibody; an immunocompetent cell expressing the CAR; a gene of the anti-GPC3 antibody or a gene of the CAR; a vector comprising the anti-GPC3 antibody gene or the CAR gene; a host cell in which the vector has been introduced; a method for specifically detecting GPC3; and a kit for specifically detecting GPC3. An antibody comprising particular heavy chain CDR1 to CDR3 and particular light chain CDR1 to CDR3 defined in claim 1, and specifically binding to a human-derived GPC3 polypeptide specifically binds to GPC3 localized on a cell membrane. CAR-immunocompetent cells prepared on the basis of CAR comprising such single chain antibody are useful for cancer immunotherapy.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: August 8, 2023
    Assignees: Yamaguchi University, National Cancer Center, Noile-Immune Biotech, Inc.
    Inventors: Koji Tamada, Yukimi Sakoda, Tetsuya Nakatsura, Keigo Saito
  • Patent number: 11670398
    Abstract: It is intended to conveniently determine the pharmacokinetics of axitinib and to predict the therapeutic effect of axitinib. The present invention provides a method for determining the pharmacokinetics of axitinib, comprising the step of calculating a predicted pharmacokinetic parameter of axitinib using specific gene polymorphisms and background factors regarding a test subject.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: June 6, 2023
    Assignees: Yamaguchi University, Toyo Kohan Co., Ltd.
    Inventors: Hideyasu Matsuyama, Yoshihiko Hamamoto, Yusuke Fujita, Yoshiaki Yamamoto, Ryouichi Tsunedomi, Mitsuyoshi Oba, Hirofumi Yamano, Yukiha Ishikawa
  • Patent number: 11617765
    Abstract: An object of the present invention is to provide an enhancer for endogenous T-cells or B-cells having a memory function and a malignant tumor recurrence inhibitor in order to continue to reject malignant tumor over a long period of time. An enhancer for T-cells or B-cells having a memory function in an administration subject, comprising a nucleic acid delivery vehicle, a nucleic acid encoding interleukin-7 (IL-7), and a nucleic acid encoding chemokine (C-C motif) ligand 19 (CCL19), and an inducer for inducing a memory function in T-cells or B-cells in an administration subject, are prepared. Also, a malignant tumor recurrence inhibitor comprising a nucleic acid delivery vehicle, a nucleic acid encoding interleukin-7 (IL-7), and a nucleic acid encoding CCL19, is prepared.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: April 4, 2023
    Assignees: Yamaguchi University, National University Corporation Totori University
    Inventors: Koji Tamada, Yukimi Sakoda, Keishi Adachi, Takafumi Nakamura
  • Publication number: 20220324975
    Abstract: The present disclosure provides a pharmaceutical composition comprising an antibody having ADCC activity, a T cell-redirecting antibody, or a cell expressing a chimeric receptor, for use in combination with the administration of an antigen binding molecule capable of binding to a target antigen, wherein the primary molecule comprises a linker that is cleaved by protease, the antigen binding molecule obtained through the cleavage of the linker has the ability to bind to the target antigen, variable regions of the antibody having ADCC activity or the T cell-redirecting antibody, and an extracellular binding domain of the chimeric receptor bind to a cell expressing the target antigen via binding to the antigen binding molecule resulting from the cleavage of the cleavable linker.
    Type: Application
    Filed: June 5, 2020
    Publication date: October 13, 2022
    Applicants: Chugai Seiyaku Kabushiki Kaisha, Yamaguchi University
    Inventors: Mika Sakurai, Tomoyuki Igawa, Yasunori Komori, Koji Tamada, Yukimi Sakoda
  • Publication number: 20220273723
    Abstract: It is to provide an immunocompetent cell that expresses regulatory factors of immunocompetent cell immune function and possesses all of proliferative potential, viability, and the ability to accumulate a T cell, and an expression vector of regulatory factors of immune function for generating the immunocompetent cell. An immunocompetent cell expressing a cell surface molecule specifically recognizing a cancer antigen, interleukin 7 (IL-7), and CCL19 is generated. Preferably, the cell surface molecule specifically recognizing a cancer antigen is T cell receptor specifically recognizing the cancer antigen, and the immunocompetent cell is a T cell.
    Type: Application
    Filed: May 19, 2022
    Publication date: September 1, 2022
    Applicant: Yamaguchi University
    Inventors: Koji Tamada, Yukimi Sakoda, Keishi Adachi
  • Patent number: 11384385
    Abstract: A therapeutic effect of irinotecan is predicted using a predetermined genetic polymorphism. A genetic polymorphism identified by rs1980576 in APCDD1L gene, or a genetic polymorphism in linkage disequilibrium with the above genetic polymorphism is analyzed, and determination is performed based on the genotype of the genetic polymorphism.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: July 12, 2022
    Assignees: Yamaguchi University, Toyo Kohan Co., Ltd.
    Inventors: Ryouichi Tsunedomi, Shoichi Hazama, Hiroaki Nagano
  • Patent number: 11337997
    Abstract: It is to provide an immunocompetent cell that expresses regulatory factors of immunocompetent cell immune function and possesses all of proliferative potential, viability, and the ability to accumulate a T cell, and an expression vector of regulatory factors of immune function for generating the immunocompetent cell. An immunocompetent cell expressing a cell surface molecule specifically recognizing a cancer antigen, interleukin 7 (IL-7), and CCL19 is generated. Preferably, the cell surface molecule specifically recognizing a cancer antigen is T cell receptor specifically recognizing the cancer antigen, and the immunocompetent cell is a T cell.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: May 24, 2022
    Assignee: Yamaguchi University
    Inventors: Koji Tamada, Yukimi Sakoda, Keishi Adachi
  • Publication number: 20220143094
    Abstract: The present disclosure provides a pharmaceutical composition for use in combination with administration of a mutated antibody having a mutation, including substitution, deletion, addition or modification, of at least one amino acid in a CH1 region, a CH2 region, a CH3 region, a CL region, or a framework region, wherein the pharmaceutical composition comprises a cell expressing a chimeric receptor, the mutated antibody is capable of binding to the extracellular binding domain of the chimeric receptor via a moiety having the mutation, and the extracellular binding domain does not bind to an antibody free of the mutation.
    Type: Application
    Filed: April 17, 2020
    Publication date: May 12, 2022
    Applicants: Chugai Seiyaku Kabushiki Kaisha, Yamaguchi University
    Inventors: Mika Sakurai, Tomoyuki Igawa, Koji Tamada, Yukimi Sakoda
  • Patent number: 11111526
    Abstract: In the case of using a blocking nucleic acid to prevent non-specific hybridization of a target nucleic acid with a nucleic acid probe, further excellent efficiency of detecting the target nucleic acid is achieved. A buffer composition used in hybridization of a target nucleic acid with a nucleic acid probe, wherein the buffer composition for hybridization contains a blocking nucleic acid comprising a nucleotide sequence complementary to a region comprising at least a non-detection target nucleotide in a non-target nucleic acid, in a concentration of one or more times higher than the concentration of a nucleic acid in a nucleic acid mixture consisting of the target nucleic acid and the non-target nucleic acid.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: September 7, 2021
    Assignees: Toyo Kohan Co., Ltd., Yamaguchi University
    Inventors: Toshiya Tsuda, Shuichi Kamei, Mitsuyoshi Oba, Hirofumi Yamano, Ryouichi Tsunedomi, Shoichi Hazama, Hiroaki Nagano
  • Publication number: 20210158893
    Abstract: It is intended to conveniently determine the pharmacokinetics of axitinib and to predict the therapeutic effect of axitinib. The present invention provides a method for determining the pharmacokinetics of axitinib, comprising the step of calculating a predicted pharmacokinetic parameter of axitinib using specific gene polymorphisms and background factors regarding a test subject.
    Type: Application
    Filed: May 18, 2018
    Publication date: May 27, 2021
    Applicants: Yamaguchi University, Toyo Kohan Co., Ltd.
    Inventors: Hideyasu Matsuyama, Yoshihiko Hamamoto, Yusuke Fujita, Yoshiaki Yamamoto, Ryouichi Tsunedomi, Mitsuyoshi Oba, Hirofumi Yamano, Yukiha Ishikawa
  • Publication number: 20200348237
    Abstract: An elongated ferromagnetic anodic electrode is fixed to a tightly closable pipe shape vacuum casing so as to extend within the casing as a cantilever and magnetic field applying module is disposed so as to concentrate magnetic field at a tip side position of the ferromagnetic anodic electrode in an area of discharge optical emission when a high voltage is applied between the anodic electrode and the vacuum casing as a cathode electrode. In addition, a vacuum casing can be formed with a ferromagnetic and soft magnetic material for magnetic flux to be permeable well, or a tip side alone of an anodic electrode rather than the anodic electrode itself can be formed with a ferromagnetic material, or a ferromagnetic member can be disposed at a near position of an anodic electrode, so as to concentrate magnetic field in a vicinity of a tip of an anodic electrode.
    Type: Application
    Filed: October 23, 2018
    Publication date: November 5, 2020
    Applicants: Marunaka Co., Ltd., Sanko Ematec Co., Ltd., Yamaguchi University
    Inventors: Mitsugu NAKAGAWA, Kazumi ENOMOTO, Setsuo YAMAMOTO, Hiroki KURISU
  • Patent number: 10781249
    Abstract: An object of the present invention is to provide: an anti-GPC3 antibody that recognizes an epitope different from that for existing antibodies (e.g., GC33 and GC199) and can specifically bind, even in the form of single chain antibody, to GPC3 localized on a cell membrane; CAR comprising the anti-GPC3 single chain antibody; an immunocompetent cell expressing the CAR; a gene of the anti-GPC3 antibody or a gene of the CAR; a vector comprising the anti-GPC3 antibody gene or the CAR gene; a host cell in which the vector has been introduced; a method for specifically detecting GPC3; and a kit for specifically detecting GPC3. An antibody comprising particular heavy chain CDR1 to CDR3 and particular light chain CDR1 to CDR3 defined in claim 1, and specifically binding to a human-derived GPC3 polypeptide specifically binds to GPC3 localized on a cell membrane. CAR-immunocompetent cells prepared on the basis of CAR comprising such single chain antibody are useful for cancer immunotherapy.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: September 22, 2020
    Assignees: Yamaguchi University, National Cancer Center, Noile-Immune Biotech, Inc.
    Inventors: Koji Tamada, Yukimi Sakoda, Tetsuya Nakatsura, Keigo Saito
  • Patent number: 10730935
    Abstract: An object of the present invention is to provide: an anti-GPC3 antibody that recognizes an epitope different from that for existing antibodies (e.g., GC33 and GC199) and can specifically bind, even in the form of single chain antibody, to GPC3 localized on a cell membrane; CAR comprising the anti-GPC3 single chain antibody; an immunocompetent cell expressing the CAR; a gene of the anti-GPC3 antibody or a gene of the CAR; a vector comprising the anti-GPC3 antibody gene or the CAR gene; a host cell in which the vector has been introduced; a method for specifically detecting GPC3; and a kit for specifically detecting GPC3. An antibody comprising particular heavy chain CDR1 to CDR3 and particular light chain CDR1 to CDR3 defined in claim 1, and specifically binding to a human-derived GPC3 polypeptide specifically binds to GPC3 localized on a cell membrane. CAR-immunocompetent cells prepared on the basis of CAR comprising such single chain antibody are useful for cancer immunotherapy.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: August 4, 2020
    Assignees: Yamaguchi University, National Cancer Center, Noile-Immune Biotech, Inc.
    Inventors: Koji Tamada, Yukimi Sakoda, Tetsuya Nakatsura, Keigo Saito
  • Patent number: 10722390
    Abstract: A plurality of branch bars is provided on opposing sides of paired strut pieces connected by links in a strut to protrude from one towards the other side, and a plurality of ratchet teeth is formed on the side of the branch bars respectively. When a stent made of polymer material having a cylindrical constitution in which a plurality of struts is connected by links is deformed to enlarge its diameter, the paired struts are deformed to come near to each other, so that the branch bars overlap each other with the ratchet teeth formed thereon engaging with each other. As the effect of engagement of the ratchet teeth with each other, while deformation of the struts so as to enlarge the diameter of the stent is allowed, deformation so as to reduce the diameter of the stent is inhibited.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: July 28, 2020
    Assignee: Yamaguchi University
    Inventor: Kazuyuki Minami
  • Publication number: 20200190595
    Abstract: The present invention easily identifies a genotype for gene mutations related to myeloproliferative neoplasms. The present invention comprises a mutant probe that specifically hybridizes with a gene mutation related to myeloproliferative neoplasms in JAK2, a mutant probe that specifically hybridizes with a gene mutation related to myeloproliferative neoplasms in CALR, and a mutant probe that specifically hybridizes with a gene mutation related to myeloproliferative neoplasms in MPL.
    Type: Application
    Filed: June 28, 2018
    Publication date: June 18, 2020
    Applicants: Toyo Kohan Co., Ltd., Yamaguchi University
    Inventors: Emi Takamitsu, Mitsuyoshi Oba, Junichi Morihiro, Hirofumi Yamano, Toshiaki Yujiri, Masafumi Matsuguma