Patents by Inventor Toyomasa Katagiri

Toyomasa Katagiri 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: 20220098256
    Abstract: The present invention provides peptides containing the BIG3 polypeptide-binding site in a PHB2 polypeptide, which inhibit the binding between a PHB2 polypeptide and a BIG3 polypeptide, and pharmaceutical compositions containing the peptide. The peptides of the present invention have the ability to bind not to PHB2, whose expression is found in organs throughout the human body, but to BIG3, which is a protein highly expressed specifically in particularly estrogen receptor-positive cancer, and have excellent growth suppressive effects on BIG3-positive cancer cells. Accordingly, the peptides of the present invention are useful as therapeutic agents for breast cancer which can avoid expression of side effects.
    Type: Application
    Filed: November 28, 2019
    Publication date: March 31, 2022
    Applicants: TOKUSHIMA UNIVERSITY, ONCOTHERAPY SCIENCE, iNC.
    Inventors: TOYOMASA KATAGIRI, TETSURO YOSHIMARU, AKIRA OTAKA, TAKASHI MIYAMOTO, YASUHIDE OKAMOTO
  • Patent number: 11091517
    Abstract: The present invention provides peptides having a structure in which portions of a dominant-negative peptide of BIG3 which inhibits the interaction between BIG3 and PHB2 are replaced by at least two stapling structures. The peptides of the present invention have excellent cell growth inhibiting activity. The cell growth inhibiting activity lasts longer, compared to a single-stapled peptide. Therefore, the peptides of the present invention have a feature suitable for clinical applications in cancer therapy.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: August 17, 2021
    Assignees: TOKUSHIMA UNIVERSITY, ONCOTHERAPY SCIENCE, INC.
    Inventors: Toyomasa Katagiri, Tetsuro Yoshimaru, Takashi Miyamoto, Yasuhide Okamoto
  • Publication number: 20200255474
    Abstract: The present invention provides peptides having a structure in which portions of a dominant-negative peptide of BIG3 which inhibits the interaction between BIG3 and PHB2 are replaced by at least two stapling structures. The peptides of the present invention have excellent cell growth inhibiting activity. The cell growth inhibiting activity lasts longer, compared to a single-stapled peptide. Therefore, the peptides of the present invention have a feature suitable for clinical applications in cancer therapy.
    Type: Application
    Filed: July 18, 2018
    Publication date: August 13, 2020
    Applicants: TOKUSHIMA UNIVERSITY, ONCOTHERAPY SCIENCE, INC
    Inventors: Toyomasa KATAGIRI, Tetsuro YOSHIMARU, Takashi MIYAMOTO, Yasuhide OKAMOTO
  • Patent number: 10669310
    Abstract: The present invention provides peptides containing a structure in which a portion of the dominant negative peptide of BIG3 which inhibits the interaction between BIG3 and PHB2 is substituted with stapling structure(s). Peptides of the present invention have excellent cell growth inhibitory actions. Furthermore, their cell growth inhibitory actions continue for a longer time than the actions of peptides without stapling structures. Therefore, these peptides have features suitable for clinical applications in cancer therapy.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: June 2, 2020
    Assignees: TOKUSHIMA UNIVERSITY, ONCOTHERAPY SCIENCE, INC.
    Inventors: Toyomasa Katagiri, Takashi Miyamoto, Rie Hayashi
  • Publication number: 20190023739
    Abstract: The present invention provides peptides containing a structure in which a portion of the dominant negative peptide of BIG3 which inhibits the interaction between BIG3 and PHB2 is substituted with stapling structure(s). Peptides of the present invention have excellent cell growth inhibitory actions. Furthermore, their cell growth inhibitory actions continue for a longer time than the actions of peptides without stapling structures. Therefore, these peptides have features suitable for clinical applications in cancer therapy.
    Type: Application
    Filed: January 16, 2017
    Publication date: January 24, 2019
    Applicants: TOKUSHIMA UNIVERSITY, ONCOTHERAPY SCIENCE, INC.
    Inventors: TOYOMASA KATAGIRI, TAKASHI MIYAMOTO, RIE HAYASHI
  • Patent number: 9725490
    Abstract: Provided is a novel cancer-treating agent which can be used as a novel choice for the treatment of cancer. Specifically provided are: a peptide that inhibits binding of ERAP1 polypeptide to PHB2 polypeptide, which comprises a binding site of the ERAP1 polypeptide to the PHB2 polypeptide, and a pharmaceutical composition comprising the peptide. In addition, provided is a method for screening a drug candidate for treating and/or preventing cancer using inhibition of the binding of the ERAP1 polypeptide to PP1? polypeptide, PKA polypeptide or PKB polypeptide as an index.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: August 8, 2017
    Assignees: TOKUSHIMA UNIVERSITY, ONCOTHERAPY SCIENCE, INC.
    Inventors: Toyomasa Katagiri, Takuya Tsunoda
  • Patent number: 9540447
    Abstract: Methods of detecting synovial sarcoma using differentially expressed genes are disclosed. Also disclosed are methods of identifying agents for treating synovial sarcoma. Further, a method for treating or preventing a disease that is associated with Frizzled homolog 10 (FZD10) in a subject is provided.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: January 10, 2017
    Assignee: ONCOTHERAPY SCIENCE, INC.
    Inventors: Yusuke Nakamura, Toyomasa Katagiri, Chikako Fukukawa, Motoki Kuhara
  • Patent number: 9187557
    Abstract: The present application provides novel human genes A7322, whose expression is markedly elevated in breast cancer. The present application also provides human genes F3374 whose expression is markedly elevated in breast cancer. These genes and polypeptides encoded thereby can be used, for example, in the diagnosis of breast cancer, and as target molecules for developing drugs against breast cancer. The invention features methods of screening for modulators of the kinase activity of PBK/TOPK. The invention further provides methods of screening for agents to prevent or treat cancer, such as breast cancer.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: November 17, 2015
    Assignee: OncoTherapy Science, Inc.
    Inventors: Yusuke Nakamura, Toyomasa Katagiri, Shuichi Nakatsuru
  • Patent number: 9139655
    Abstract: The present invention relates to an antibody or a fragment thereof which is capable of binding to a Frizzled homologue 10 (FZD10) protein, such as a mouse monoclonal antibody, a chimeric antibody and a humanized antibody. Also, the present invention relates to a method for treating and/or preventing FZD10-associated disease; a method for diagnosis or prognosis of FZD10-associated disease; and a method for in vivo imaging of FZD10 in a subject.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: September 22, 2015
    Assignee: ONCOTHERAPY SCIENCE, INC.
    Inventors: Yusuke Nakamura, Toyomasa Katagiri, Shuichi Nakatsuru, Keigo Endo
  • Patent number: 8975086
    Abstract: The present invention provides therapeutic agents and methods for treating cancer using the polypeptides composed of an amino acid sequence which includes a polypeptide fragment of DEPDC1. The polypeptides of the present invention can be introduced into cancer cells by modifying the polypeptides with transfection agents such as poly-arginine. Furthermore, the present invention provides methods of screening for therapeutic agents or compounds useful in inhibition of the DEPDC1/ZN-F224 complex formation or the treatment of cancer. The present invention also provides siRNAs targeting the ZNF224 gene, which are suggested to be useful in the treatment of bladder cancer.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: March 10, 2015
    Assignee: OncoTherapy Science, Inc.
    Inventors: Yusuke Nakamura, Toyomasa Katagiri, Akira Togashi
  • Publication number: 20150051379
    Abstract: Methods of detecting synovial sarcoma using differentially expressed genes are disclosed. Also disclosed are methods of identifying agents for treating synovial sarcoma. Further, a method for treating or preventing a disease that is associated with Frizzled homologue 10 (FZD10) in a subject is provided.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 19, 2015
    Inventors: Yusuke NAKAMURA, Toyomasa KATAGIRI, Chikako FUKUKAWA, Motoki KUHARA
  • Patent number: 8846038
    Abstract: Methods of detecting synovial sarcoma using differentially expressed genes are disclosed. Also disclosed are methods of identifying agents for treating synovial sarcoma. Further, a method for treating or preventing a disease that is associated with Frizzled homologue 10 (FZD10) in a subject is provided.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: September 30, 2014
    Assignee: Oncotherapy Science, Inc.
    Inventors: Yusuke Nakamura, Toyomasa Katagiri, Chikako Fukukawa, Motoki Kuhara
  • Publication number: 20140228238
    Abstract: The present application provides novel human genes A7322, whose expression is markedly elevated in breast cancer. The present application also provides human genes F3374 whose expression is markedly elevated in breast cancer. These genes and polypeptides encoded thereby can be used, for example, in the diagnosis of breast cancer, and as target molecules for developing drugs against breast cancer. The invention features methods of screening for modulators of the kinase activity of PBK/TOPK. The invention further provides methods of screening for agents to prevent or treat cancer, such as breast cancer.
    Type: Application
    Filed: January 23, 2014
    Publication date: August 14, 2014
    Applicant: ONCOTHERAPY SCIENCE, INC.
    Inventors: Yusuke NAKAMURA, Toyomasa KATAGIRI, Shuichi NAKATSURU
  • Patent number: 8795976
    Abstract: The present application provides novel human gene B7330N whose expression is markedly elevated in breast cancers. The gene and polypeptide encoded by the gene can be used, for example, in the diagnosis of breast cancers, as target molecules for developing drugs against the disease, and for attenuating cell growth of breast cancer.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: August 5, 2014
    Assignee: OncoTherapy Science, Inc.
    Inventors: Yusuke Nakamura, Toyomasa Katagiri, Shuichi Nakatsuru
  • Publication number: 20140162952
    Abstract: Provided is a novel cancer-treating agent which can be used as a novel choice for the treatment of cancer. Specifically provided are: a peptide that inhibits binding of ERAP1 polypeptide to PHB2 polypeptide, which comprises a binding site of the ERAP1 polypeptide to the PHB2 polypeptide, and a pharmaceutical composition comprising the peptide. In addition, provided is a method for screening a drug candidate for treating and/or preventing cancer using inhibition of the binding of the ERAP1 polypeptide to PP1? polypeptide, PKA polypeptide or PKB polypeptide as an index.
    Type: Application
    Filed: July 27, 2012
    Publication date: June 12, 2014
    Applicants: ONCOTHERAPY SCIENCE, INC., THE UNIVERSITY OF TOKUSHIMA
    Inventors: Toyomasa Katagiri, Takuya Tsunoda
  • Patent number: 8697068
    Abstract: Methods of detecting synovial sarcoma using differentially expressed genes are disclosed. Also disclosed are methods of identifying agents for treating synovial sarcoma. Further, a method for treating or preventing a disease that is associated with Frizzled homologue 10 (FZD10) in a subject is provided.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: April 15, 2014
    Assignee: Oncotherapy Science, Inc
    Inventors: Yusuke Nakamura, Toyomasa Katagiri, Chikako Fukukawa, Motoki Kuhara
  • Patent number: 8685641
    Abstract: Objective methods for detecting and diagnosing bladder cancer (BLC) are described herein. In one embodiment, the diagnostic method involves determining the expression level of a BLC-associated gene that discriminates between BLC cells and normal cells. The present invention further provides means for predicting and preventing bladder cancer metastasis using BLC-associated genes having unique altered expression patterns in bladder cancer cells with lymph-node metastasis. The present invention provides methods of screening for therapeutic agents useful in the treatment of bladder cancer, methods of treating bladder cancer and method for vaccinating a subject against bladder cancer. Specifically, the present application provides novel human genes C2093, B5860Ns and C6055s whose expression is markedly elevated in bladder cancers.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: April 1, 2014
    Assignee: OncoTherapy Science, Inc.
    Inventors: Yusuke Nakamura, Toyomasa Katagiri, Shuichi Nakatsuru
  • Patent number: 8673548
    Abstract: The present application provides novel human genes A7322, whose expression is markedly elevated in breast cancer. The present application also provides human genes F3374 whose expression is markedly elevated in breast cancer. These genes and polypeptides encoded thereby can be used, for example, in the diagnosis of breast cancer, and as target molecules for developing drugs against breast cancer. The invention features methods of screening for modulators of the kinase activity of PBK/TOPK. The invention further provides methods of screening for agents to prevent or treat cancer, such as breast cancer.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: March 18, 2014
    Assignee: Oncotherapy Science, Inc.
    Inventors: Yusuke Nakamura, Toyomasa Katagiri, Shuichi Nakatsuru
  • Publication number: 20130295108
    Abstract: Methods of detecting synovial sarcoma using differentially expressed genes are disclosed. Also disclosed are methods of identifying agents for treating synovial sarcoma. Further, a method for treating or preventing a disease that is associated with Frizzled homologue 10 (FZD10) in a subject is provided.
    Type: Application
    Filed: June 14, 2013
    Publication date: November 7, 2013
    Inventors: Yusuke NAKAMURA, Toyomasa KATAGIRI, Chikako FUKUKAWA, Motoki KUHARA
  • Publication number: 20130230521
    Abstract: The present invention relates to an antibody or a fragment thereof which is capable of binding to a Frizzled homologue 10 (FZD10) protein, such as a mouse monoclonal antibody, a chimeric antibody and a humanized antibody. Also, the present invention relates to a method for treating and/or preventing FZD10-associated disease; a method for diagnosis or prognosis of FZD10-associated disease; and a method for in vivo imaging of FZD10 in a subject.
    Type: Application
    Filed: June 12, 2012
    Publication date: September 5, 2013
    Inventors: Yusuke Nakamura, Toyomasa Katagiri, Shuichi Nakatsuru, Keigo Endo