Patents by Inventor Kohzoh Imai

Kohzoh Imai 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).

  • Patent number: 12123876
    Abstract: The present invention provides an antibody for detecting mesothelioma and an antibody having high specificity to mesothelioma and high sensitivity thereto. The present invention also provides a method of diagnosis of mesothelioma by using the antibody, a reagent containing the antibody for use in diagnosis of mesothelioma, and a kit comprising the antibody for use in diagnosis of mesothelioma. Further, the present invention provides a marker for use in diagnosis of mesothelioma. Furthermore, the present invention provides a pharmaceutical composition containing the antibody according to the present invention or an antigen-binding fragment thereof for use in treatment of mesothelioma. An antibody that binds to a glycosylated HEG1 protein obtained from mesothelioma.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: October 22, 2024
    Assignees: Kanagawa Prefectural Hospital Organization, The University of Tokyo
    Inventors: Shoutaro Tsuji, Taihei Kageyama, Kota Washimi, Makiko Tsuji, Rieko Matsuura, Mitsuyo Yoshihara, Kohzoh Imai
  • Publication number: 20210208148
    Abstract: One embodiment of this invention is a method for confirming expression of the PRDM14 gene from blood or lymphatic fluid collected from a subject by: (1) detecting PRDM14 positive CTC which expresses the PRDM14 gene; or (2) measuring the concentration of at least one protein selected from the group consisting of leptin receptor (LEPR), macrophage-derived chemokine (MDC) and gamma-interferon (IFN?).
    Type: Application
    Filed: September 25, 2018
    Publication date: July 8, 2021
    Applicants: The University of Tokyo, Kanagawa Prefectural Hospital Organization
    Inventors: Kohzoh Imai, Hitoshi Zembutsu, Hiroaki Taniguchi, Anri Saitoh, Yohei Miyagi
  • Publication number: 20190071517
    Abstract: The present invention provides an antibody for detecting mesothelioma and an antibody having high specificity to mesothelioma and high sensitivity thereto. The present invention also provides a method of diagnosis of mesothelioma by using the antibody, a reagent containing the antibody for use in diagnosis of mesothelioma, and a kit comprising the antibody for use in diagnosis of mesothelioma. Further, the present invention provides a marker for use in diagnosis of mesothelioma. Furthermore, the present invention provides a pharmaceutical composition containing the antibody according to the present invention or an antigen-binding fragment thereof for use in treatment of mesothelioma. An antibody that binds to a glycosylated HEG1 protein obtained from mesothelioma.
    Type: Application
    Filed: January 16, 2017
    Publication date: March 7, 2019
    Inventors: Shoutaro TSUJI, Taihei KAGEYAMA, Kota WASHIMI, Makiko TSUJI, Rieko MATSUURA, Mitsuyo YOSHIHARA, Kohzoh IMAI
  • Publication number: 20180057553
    Abstract: A technique is provided which enables simple and low-cost purification of biologically active proteins by means of a conjugate of a target substance capturing molecule and a protein which comprises the amino acid sequence in SEQ ID NO:1, or a protein which comprises the amino acid sequence obtained by deleting, substituting or adding one or multiple amino acids in the amino acid sequence in SEQ ID NO: 1 and which has binding activity to a compound having —OH or —OR1 [R1 represents a hydrogen atom, an alkyl group or —PO3H2].
    Type: Application
    Filed: March 4, 2016
    Publication date: March 1, 2018
    Applicants: The University of Tokyo, Kanagawa Prefectural Hospital Organization
    Inventors: Kohzoh IMAI, Shotaro TSUJI
  • Patent number: 9631014
    Abstract: Disclosed is a method of diagnosing graft-versus-host disease, comprising measuring the level of CCL8 protein in a sample obtained from a subject as an indicator for the diagnosis or course of graft-versus-host disease. Also a diagnostic reagent for graft-versus-host disease comprising an anti-CCL8 antibody is disclosed. The method of the present invention enables diagnosis of the onset of graft-versus-host disease and monitoring of the progress, in particular, differential diagnosis between graft-versus-host disease and an infectious disease. The present invention also provides a method for treating graft-versus-host disease utilizing the anti-CCL8 antibody.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: April 25, 2017
    Assignee: SAPPORO MEDICAL UNIVERSITY
    Inventors: Tsukasa Hori, Yasuo Kokai, Yasuyoshi Naishiro, Hiroyuki Tsutsumi, Kohzoh Imai
  • Publication number: 20150031033
    Abstract: The object aims to comprehensively analyze miRNA that undergoes epigenetic silencing in cancer to identify miRNA associated with cancer, elucidate the role of the identified miRNA in cancer, and develop a novel method for detecting cancer and a novel therapeutic agent for cancer both of which relate to the miRNA. Disclosed is a method for detecting cancer in a subject, which comprises detecting methylated CpG in a CpG island located in a promoter region of a microRNA 34b gene and/or a microRNA 34c gene in a biological sample collected from the subject. Also disclosed is a therapeutic agent for cancer, which comprises a nucleic acid encoding a BTG4 gene or BTG4, or comprises a nucleic acid encoding a miR-34b gene and/or an miR-34c gene or miR-34b and/or miR-34c.
    Type: Application
    Filed: August 8, 2014
    Publication date: January 29, 2015
    Applicant: Sapporo Medical University
    Inventors: Hiromu Suzuki, Minoru Toyota, Kohzoh Imai, Yasuhisa Shinomura, Takashi Tokino
  • Patent number: 8841268
    Abstract: The object aims to comprehensively analyze miRNA that undergoes epigenetic silencing in cancer to identify miRNA associated with cancer, elucidate the role of the identified miRNA in cancer, and develop a novel method for detecting cancer and a novel therapeutic agent for cancer both of which relate to the miRNA. Disclosed is a method for detecting cancer in a subject, which comprises detecting methylated CpG in a CpG island located in a promoter region of a microRNA 34b gene and/or a microRNA 34c gene in a biological sample collected from the subject. Also disclosed is a therapeutic agent for cancer, which comprises a nucleic acid encoding a BTG4 gene or BTG4, or comprises a nucleic acid encoding a miR-34b gene and/or an miR-34c gene or miR-34b and/or miR-34c.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: September 23, 2014
    Assignee: Sapporo Medical University
    Inventors: Hiromu Suzuki, Minoru Toyota, Kohzoh Imai, Yasuhisa Shinomura, Takashi Tokino
  • Publication number: 20140234335
    Abstract: Disclosed is a method of diagnosing graft-versus-host disease, comprising measuring the level of CCL8 protein in a sample obtained from a subject as an indicator for the diagnosis or course of graft-versus-host disease. Also a diagnostic reagent for graft-versus-host disease comprising an anti-CCL8 antibody is disclosed. The method of the present invention enables diagnosis of the onset of graft-versus-host disease and monitoring of the progress, in particular, differential diagnosis between graft-versus-host disease and an infectious disease. The present invention also provides a method for treating graft-versus-host disease utilizing the anti-CCL8 antibody.
    Type: Application
    Filed: April 3, 2014
    Publication date: August 21, 2014
    Applicant: SAPPORO MEDICAL UNIVERSITY
    Inventors: Tsukasa HORI, Yasuo KOKAI, Yasuyoshi NAISHIRO, Hiroyuki TSUTSUMI, Kohzoh IMAI
  • Publication number: 20130267430
    Abstract: Disclosed is a method of diagnosing graft-versus-host disease, comprising measuring the level of CCL8 protein in a sample obtained from a subject as an indicator for the diagnosis or course of graft-versus-host disease. Also a diagnostic reagent for graft-versus-host disease comprising an anti-CCL8 antibody is disclosed. The method of the present invention enables diagnosis of the onset of graft-versus-host disease and monitoring of the progress, in particular, differential diagnosis between graft-versus-host disease and an infectious disease. The present invention also provides a method for treating graft-versus-host disease utilizing the anti-CCL8 antibody.
    Type: Application
    Filed: June 14, 2012
    Publication date: October 10, 2013
    Applicant: SAPPORO MEDICAL UNIVERSITY
    Inventors: Tsukasa HORI, Yasuo KOKAI, Yasuyoshi NAISHIRO, Hiroyuki TSUTSUMI, Kohzoh IMAI
  • Patent number: 8481497
    Abstract: [PROBLEMS] To provide a technique which enables an effective antibody therapy for cancer which targets for FGFR1 without the need of using any effective antibody having high specificity and a potent cell-killing activity. [MEANS FOR SOLVING PROBLEMS] Disclosed are: a therapeutic agent for cancer, which comprises an enhancer of the expression of a fibroblast growth factor receptor-1 and an anti-fibroblast growth factor receptor-1 antibody; and a method for the treatment of cancer using the therapeutic agent.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: July 9, 2013
    Assignees: Sapporo Medical University, The University of Tokyo
    Inventors: Kohzoh Imai, Shigeru Sasaki, Tsutomu Seito
  • Publication number: 20130065779
    Abstract: Disclosed is a method of diagnosing graft-versus-host disease, comprising measuring the level of CCL8 protein in a sample obtained from a subject as an indicator for the diagnosis or course of graft-versus-host disease. Also a diagnostic reagent for graft-versus-host disease comprising an anti-CCL8 antibody is disclosed. The method of the present invention enables diagnosis of the onset of graft-versus-host disease and monitoring of the progress, in particular, differential diagnosis between graft-versus-host disease and an infectious disease. The present invention also provides a method for treating graft-versus-host disease utilizing the anti-CCL8 antibody.
    Type: Application
    Filed: June 14, 2012
    Publication date: March 14, 2013
    Inventors: Tsukasa HORI, Yasuo Kokai, Yasuyoshi Naishiro, Hiroyuki Tsutsumi, Kohzoh Imai
  • Publication number: 20110129524
    Abstract: [Problems] To provide a technique which enables an effective antibody therapy for cancer which targets for FGFR1 without the need of using any effective antibody having high specificity and a potent cell-killing activity. [Means for Solving Problems] Disclosed are: a therapeutic agent for cancer, which comprises an enhancer of the expression of a fibroblast growth factor receptor-1 and an anti-fibroblast growth factor receptor-1 antibody; and a method for the treatment of cancer using the therapeutic agent.
    Type: Application
    Filed: May 29, 2008
    Publication date: June 2, 2011
    Applicants: IMMUNO-BIOLOGICAL LABORATORIES CO., LTD, SAPPOROR MEDICAL UNIVERSITY
    Inventors: Kohzoh Imai, Shigeru Sasaki, Tsutomu Seito
  • Publication number: 20110130341
    Abstract: The object aims to comprehensively analyze miRNA that undergoes epigenetic silencing in cancer to identify miRNA associated with cancer, elucidate the role of the identified miRNA in cancer, and develop a novel method for detecting cancer and a novel therapeutic agent for cancer both of which relate to the miRNA. Disclosed is a method for detecting cancer in a subject, which comprises detecting methylated CpG in a CpG island located in a promoter region of a microRNA 34b gene and/or a microRNA 34c gene in a biological sample collected from the subject. Also disclosed is a therapeutic agent for cancer, which comprises a nucleic acid encoding a BTG4 gene or BTG4, or comprises a nucleic acid encoding a miR-34b gene and/or an miR-34c gene or miR-34b and/or miR-34c.
    Type: Application
    Filed: May 7, 2009
    Publication date: June 2, 2011
    Applicant: Sapporo Medical University
    Inventors: Hiromu Suzuki, Minoru Toyota, Kohzoh Imai, Yasuhisa Shinomura, Takashi Tokino
  • Publication number: 20100183586
    Abstract: Disclosed is a method of diagnosing graft-versus-host disease, comprising measuring the level of CCL8 protein in a sample obtained from a subject as an indicator for the diagnosis or course of graft-versus-host disease. Also a diagnostic reagent for graft-versus-host disease comprising an anti-CCL8 antibody is disclosed. The method of the present invention enables diagnosis of the onset of graft-versus-host disease and monitoring of the progress, in particular, differential diagnosis between graft-versus-host disease and an infectious disease. The present invention also provides a method for treating graft-versus-host disease utilizing the anti-CCL8 antibody.
    Type: Application
    Filed: June 23, 2008
    Publication date: July 22, 2010
    Inventors: Tsukasa Hori, Yasuo Kokai, Yasuyoshi Naishiro, Hiroyuki Tsutsumi, Kohzoh Imai
  • Publication number: 20100068702
    Abstract: The invention relates to a sample containing a gastric mucosa lavage fluid collected from a subject who has received a gastric mucus removal treatment and a method for detecting a disease-related marker using the same. By using the sample of the invention, the disease-related marker can be detected conveniently, less invasively, highly sensitively and highly accurately.
    Type: Application
    Filed: May 15, 2007
    Publication date: March 18, 2010
    Applicants: Sapporo Medical University, St. Marianna University, School of Medicine
    Inventors: Yoshiyuki Watanabe, Yoshiyuki Watanabe, Minoru Toyota, Kohzoh Imai, Yasuhisa Shinomura, Fumio Itoh, Takashi Tokino
  • Patent number: 4990454
    Abstract: A monoclonal antibody specifically reactive to a human adenocarcinoma cell, which is obtainable by cultivating a fused cell obtained by fusing a mammalian animal cell, immunized with a human adenocarcinoma cell, with a myeloma cell.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: February 5, 1991
    Assignee: Nihon Medi-Physics Co., Ltd.
    Inventors: Akira Yachi, Kohzoh Imai, Takao Endo, Yuji Hinoda, Takafumi Yamashita, Hideo Fujita