Patents by Inventor Ryuji Ohsawa

Ryuji Ohsawa 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: 8530430
    Abstract: Peptide vaccines against cancer are described herein. In particular, epitope peptides derived from the TTK gene that elicit CTLs are provided. Antigen-presenting cells and isolated CTLs that target such peptides, as well as methods for inducing the antigen-presenting cell, or CTL are also provided. The present invention further provides pharmaceutical compositions containing as active ingredients peptides derived from TTK or polynucleotides encoding the peptides. Furthermore, the present invention provides methods for the treatment and/or prophylaxis (i.e., prevention) of cancers (tumors), and/or the prevention of postoperative recurrence thereof, as well as methods for inducing CTLs, methods for inducing anti-tumor immunity, using the peptides derived from TTK, polynucleotides encoding the peptides, or antigen-presenting cells presenting the peptides, or the pharmaceutical compositions of the present invention.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: September 10, 2013
    Assignee: Oncotherapy Science, Inc.
    Inventors: Yusuke Nakamura, Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
  • Publication number: 20130108664
    Abstract: Isolated peptides derived from SEQ ID NO: 21 and fragments thereof that bind to an HLA antigen and induce cytotoxic T lymphocytes (CTL) and thus are suitable for use in the context of cancer immunotherapy, more particularly cancer vaccines, are described herein. The inventive peptides encompass both the above mentioned amino acid sequences and modified versions thereof, in which one, two, or several amino acids are substituted, deleted, inserted or added, provided such modified versions retain the requisite HLA binding and/or CTL inducibility of the original sequences. Further provided are nucleic acids encoding any of the aforementioned peptides as well as pharmaceutical agents, substances and/or compositions that include or incorporate any of the aforementioned peptides or nucleic acids.
    Type: Application
    Filed: April 7, 2011
    Publication date: May 2, 2013
    Applicant: OncoTherapy Science, Inc.
    Inventors: Yusuke Nakamura, Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
  • Publication number: 20130095128
    Abstract: Isolated peptides derived from SEQ ID NO: 42 and fragments thereof that bind to an HLA antigen and induce cytotoxic T lymphocytes (CTL) and thus are suitable for use in the context of cancer immunotherapy, more particularly cancer vaccines, are described herein. The inventive peptides encompass both the afore-mentioned amino acid sequences and modified versions thereof, in which one, two, or several amino acids are substituted, deleted, inserted or added, provided such modified versions retain the requisite HLA binding and/or CTL inducibility of the original sequences. Further provided are nucleic acids encoding any of the aforementioned peptides as well as pharmaceutical agents, substances and/or compositions that include or incorporate any of the aforementioned peptides or nucleic acids.
    Type: Application
    Filed: March 30, 2011
    Publication date: April 18, 2013
    Applicant: ONCOTHERAPY SCIENCE INC
    Inventors: Yusuke Nakamura, Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
  • Publication number: 20130064840
    Abstract: Isolated peptides derived from SEQ ID NO: 50 and fragments thereof that bind to an HLA antigen and induce cytotoxic T lymphocytes (CTL) and thus are suitable for use in the context of cancer immunotherapy, more particularly cancer vaccines are described herein. The inventive peptides encompasses both the above mentioned amino acid sequences and modified versions thereof, in which one, two, or several amino acids sequences substituted, deleted, added or inserted, provided such modified versions retain the requisite cytotoxic T cell inducibility of the original sequence. Further provided are nucleic acids encoding any of the aforementioned peptides as well as pharmaceutical agents, substances and/or compositions that include or incorporate any of the aforementioned peptides or nucleic acids.
    Type: Application
    Filed: March 10, 2011
    Publication date: March 14, 2013
    Applicant: Onco Therapy Science ,Inc
    Inventors: Yusuke Nakamura, Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
  • Patent number: 8383590
    Abstract: The present invention provides peptides having an amino acid sequence as set forth in SEQ ID NO: 19, 22, 30, 34, 344, 358, 41, 44, 46, 48, 78, 376, 379, 80, 100, 101, 110, 111, 387, 112, 394, 114, 116, 117, 121, 395, 133, 135, 137, 426, 143, 147, 148, 149, 150, 152, 153, 154, 156, 160, 161, 162, 163, 166, 174, 178, 186, 194, 196, 202, 210, 213, 214, 217, 223, 227, 228, 233, 254, 271, 272 or 288, as well as peptides having the above-mentioned amino acid sequences in which 1, 2, or several (e.g., up to 5) amino acids are substituted, deleted, or added, provided the peptides possess cytotoxic T cell inducibility. The present invention also provides drugs for treating or preventing a disease associated with over-expression of the CDH3, EPHA4, ECT2, HIG2, INHBB, KIF20A, KNTC2, TTK and/or URLC10, e.g. cancers containing as an active ingredient one or more of these peptides. The peptides of the present invention find further utility as vaccines.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: February 26, 2013
    Assignee: Oncotherapy Science, Inc.
    Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura
  • Publication number: 20130034574
    Abstract: Isolated peptides composed of the amino acid sequence of the modified MELK epitope peptide or immunologically active fragments thereof that bind to HLA antigens and have higher cytotoxic T lymphocyte (CTL) inducibility than that of the wild type MELK epitope peptide and thus are suitable for use in the context of cancer immunotherapy or endometriosis immunotherapy, more particularly cancer or endometriosis vaccines are described herein. The present invention further provides peptides that include one, two, or several amino acid insertions, substitutions or additions to the aforementioned peptides or fragments, but yet retain the requisite cytotoxic T cell inducibility. Further provided are nucleic acids encoding any of these aforementioned peptides as well as pharmaceutical substances and compositions including any of the aforementioned peptides or nucleic acids.
    Type: Application
    Filed: January 24, 2011
    Publication date: February 7, 2013
    Applicant: OncoTherapy Science, Inc.
    Inventors: Yusuke Nakamura, Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
  • Publication number: 20130034566
    Abstract: The present invention relates to anti-CDH3 antibodies, which can be labeled with a radioisotope. Moreover, the present invention provides methods and pharmaceutical compositions that comprise an anti-CDH3 antibody as an active ingredient. Since CDH3 is strongly expressed in pancreatic, lung, colon, prostate, breast, gastric or liver cancer cells, the present invention is useful in pancreatic, lung, colon, prostate, breast, gastric or liver cancer therapies.
    Type: Application
    Filed: December 28, 2009
    Publication date: February 7, 2013
    Applicant: Onco Therapy Science, Inc.
    Inventors: Yasuhiro Shiba, Hiroki Yoshioka, Shinji Yamamoto, Aiko Kudo, Ryuji Ohsawa, Pohsing Ng, Yusuke Nakamura, Keigo Endo
  • Publication number: 20120328638
    Abstract: Peptide vaccines against cancer are described herein. In particular, epitope peptides derived from the MYBL2 gene that bind to HLA antigen and have cytotoxic T lymphocyte (CTL) inducibility, more particularly peptides having the amino acid sequence of SEQ ID NO: 5 and fragments thereof, are provided. The present invention further extends to peptides that include one, two, or several amino acid insertions, substitutions or additions to the aforementioned peptides or fragments, provided they retain cytotoxic T cell inducibility. Also provided as nucleic acids encoding any of the aforementioned peptides, antigen-presenting cells and isolated CTLs that target such peptides, and pharmaceutical agents and compositions including any of the aforementioned peptides, nucleic acids, and APCs as active ingredients. The components of the present invention have particular utility in connection with the treatment and/or prophylaxis (i.e.
    Type: Application
    Filed: December 2, 2010
    Publication date: December 27, 2012
    Applicant: Onco Therapy Science, Inc.
    Inventors: Yusuke Nakamura, Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
  • Publication number: 20120321649
    Abstract: The present invention provides peptides having an amino acid sequence as set forth in SEQ ID NO: 19, 22, 30, 34, 344, 358, 41, 44, 46, 48, 78, 376, 379, 80, 100, 101, 110, 111, 387, 112, 394, 114, 116, 117, 121, 395, 133, 135, 137, 426, 143, 147, 148, 149, 150, 152, 153, 154, 156, 160, 161, 162, 163, 166, 174, 178, 186, 194, 196, 202, 210, 213, 214, 217, 223, 227, 228, 233, 254, 271, 272 or 288, as well as peptides having the above-mentioned amino acid sequences in which 1, 2, or several (e.g., up to 5) amino acids are substituted, deleted, or added, provided the peptides possess cytotoxic T cell inducibility. The present invention also provides drugs for treating or preventing a disease associated with over-expression of the CDH3, EPHA4, ECT2, HIG2, INHBB, KIF20A, KNTC2, TTK and/or URLC10, e.g. cancers containing as an active ingredient one or more of these peptides. The peptides of the present invention find further utility as vaccines.
    Type: Application
    Filed: May 4, 2012
    Publication date: December 20, 2012
    Applicant: Oncotherapy Science, Inc.
    Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura
  • Publication number: 20120308591
    Abstract: Isolated peptides composed of the amino acid sequence of SEQ ID NO: 33 or fragments thereof that bind to HLA antigens and have cytotoxic T lymphocyte (CTL) inducibility and thus are suitable for use in the context of cancer immunotherapy, more particularly cancer vaccines are described herein. The present invention further provides peptides that include one, two, or several amino acid insertions, substitutions or additions to the aforementioned peptides or fragments, but yet retain the requisite cytotoxic T cell inducibility. Further provided are nucleic acids encoding any of these aforementioned peptides as well as pharmaceutical agents, substances and compositions including any of the aforementioned peptides or nucleic acids. The peptides, nucleic acids, pharmaceutical agents, substances and compositions of this invention find particular utility in the treatment of cancers and tumors.
    Type: Application
    Filed: December 13, 2010
    Publication date: December 6, 2012
    Applicant: Onco Therapy Science, Inc.
    Inventors: Yusuke Nakamura, Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
  • Publication number: 20120156231
    Abstract: The present invention provides isolated peptides having the amino acid sequence of SEQ ID NO: 34 or fragments thereof, which bind to HLA antigen and induce cytotoxic T lymphocyte (CTL). The present invention further provides peptides which include one, two, or several amino acid insertions, substitution or addition to the aforementioned peptides or fragments, but still have the cytotoxic T cell inducibility. Further provided are nucleic acids encoding any of these aforementioned peptides as well as pharmaceutical substances or compositions including any of the aforementioned peptides or nucleic acids. The peptides, nucleic acids, pharmaceutical substances or compositions of the present invention may be used for treating cancer or tumor.
    Type: Application
    Filed: February 17, 2010
    Publication date: June 21, 2012
    Applicant: Oncotherapy Science, Inc.
    Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
  • Publication number: 20120135020
    Abstract: Peptide vaccines against cancer are described herein. In particular, epitope peptides derived from the TTK gene that elicit CTLs are provided. Antigen-presenting cells and isolated CTLs that target such peptides, as well as methods for inducing the antigen-presenting cell, or CTL are also provided. The present invention further provides pharmaceutical compositions containing as active ingredients peptides derived from TTK or polynucleotides encoding the peptides. Furthermore, the present invention provides methods for the treatment and/or prophylaxis (i.e., prevention) of cancers (tumors), and/or the prevention of postoperative recurrence thereof, as well as methods for inducing CTLs, methods for inducing anti-tumor immunity, using the peptides derived from TTK, polynucleotides encoding the peptides, or antigen-presenting cells presenting the peptides, or the pharmaceutical compositions of the present invention.
    Type: Application
    Filed: May 10, 2010
    Publication date: May 31, 2012
    Applicant: OncoTherapy Science, Inc.
    Inventors: Yusuke Nakamura, Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Wantanabe
  • Publication number: 20120128705
    Abstract: Peptide vaccines against cancer are described herein. In particular, epitope peptides derived from the C6orf167 gene that elicit CTLs are provided. Antigen-presenting cells and isolated CTLs that target such peptides, as well as methods for inducing the antigen-presenting cell, or CTL are also provided. The present invention further provides pharmaceutical compositions containing peptides derived from C6orf167 or polynucleotides encoding the polypeptides as active ingredients. Furthermore, the present invention provides methods for the treatment and/or prophylaxis of (i.e., preventing) cancers (tumors), and/or the prevention of postoperative recurrence thereof, as well as methods for inducing CTLs, methods for inducing anti-tumor immunity, using the peptides derived from C6orf167, polynucleotides encoding the peptides, or antigen-presenting cells presenting the peptides, or the pharmaceutical compositions of the present invention.
    Type: Application
    Filed: March 31, 2010
    Publication date: May 24, 2012
    Applicant: OncoTherapy Science, Inc.
    Inventors: Yusuke Nakamura, Yataro Daigo, Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
  • Publication number: 20120107333
    Abstract: The present invention provides isolated peptides or the fragments derived from SEQ ID NO: 35, which bind to an HLA antigen and induce cytotoxic T lymphocytes (CTL). The peptides may include one of the above mentioned amino acid sequences with substitution, deletion, or addition of one, two, or several amino acids sequences. The present invention also provides pharmaceutical compositions including these peptides. The peptides of this invention can be used for treating cancer.
    Type: Application
    Filed: March 1, 2010
    Publication date: May 3, 2012
    Applicant: Oncotherapy Science, Inc.
    Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
  • Publication number: 20120093845
    Abstract: The present invention provides isolated peptides or the fragments derived from SEQ ID NO: 45, which bind to an HLA antigen and induce cytotoxic T lymphocytes (CTL). The peptides may include the above mentioned amino acid sequence with substitution deletion, or addition of one, two, or several amino acids sequences. The invention also provides pharmaceutical compositions including these peptides. The peptides of this invention can be used for diagnosing or treating cancer.
    Type: Application
    Filed: March 15, 2010
    Publication date: April 19, 2012
    Applicant: Oncotherapy Science, Inc.
    Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa watanabe, Yusuke Nakamura, Yoichi Furukawa
  • Publication number: 20120003253
    Abstract: The present invention provides isolated peptides having the amino acid sequence of SEQ ID NO: 43 or immunologically active fragments thereof, which bind to HLA antigen and have cytotoxic T lymphocyte (CTL) inducibility. The present invention further provides peptides which include one, two, or several amino acid insertions, substitution or addition to the aforementioned peptides or fragments, but still have the cytotoxic T cell inducibility. Further provided are nucleic acids encoding any of these aforementioned peptides as well as pharmaceutical agents and compositions including any of the aforementioned peptides or nucleic acids. The peptides, nucleic acids, pharmaceutical agents and compositions of this invention may be used for treating cancer or tumor.
    Type: Application
    Filed: December 17, 2009
    Publication date: January 5, 2012
    Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
  • Publication number: 20110301146
    Abstract: GSK-3beta inhibitors comprising 7-Hydroxy-benzoimidazole-4-yl-methanone Derivatives are provided. For example, the inhibitors have following general formula (I).
    Type: Application
    Filed: September 29, 2009
    Publication date: December 8, 2011
    Applicant: ONCOTHERAPY SCIENCE, INC.
    Inventors: Yo Matsuo, Ryuji Ohsawa, Shoji Hisada
  • Publication number: 20110293645
    Abstract: The present invention provides peptides containing the amino acid sequence of SEQ ID NOs: 1, 2, 3, 4, 16, 17, 30, 31, 34, 36, 37, 40, 41, 45, 49, 55, 57 and 61, as well as peptides containing the above-mentioned amino acid sequences in which 1, 2, or several amino acid(s) are substituted, deleted, inserted or added, but still have cytotoxic T cell inducibility. The present invention also provides drugs for treating or preventing tumors, which drugs containing these peptides. The peptides of the present invention can also be used as vaccines.
    Type: Application
    Filed: December 3, 2009
    Publication date: December 1, 2011
    Applicant: ONCOTHERAPY SCIENCE, INC.
    Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
  • Publication number: 20110280898
    Abstract: Peptide vaccines against cancer are described herein. In particular, the present invention describes epitope peptides derived from INHBB that elicit CTLs. The present invention also provides established CTLs that specifically recognize HLA-A02 positive target cells pulsed with the peptides. Antigen-presenting cells and exosomes that present any of the peptides, as well as methods for inducing antigen-presenting cells are also provided. The present invention further provides pharmaceutical compositions containing the INHBB polypeptides or polynucleotides encoding thereof, as well as exosomes and antigen-presenting cells as active ingredients.
    Type: Application
    Filed: August 14, 2009
    Publication date: November 17, 2011
    Applicant: Oncotherapy Science, Inc.
    Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura
  • Publication number: 20110263566
    Abstract: 7-Hydroxy-benzoimidazole-4-yl-methanone Derivatives, which are useful for PBK inhibitors, are provided.
    Type: Application
    Filed: July 30, 2009
    Publication date: October 27, 2011
    Inventors: Yo Matsuo, Yingfu Li, Joel Walker, Feryan Ahmed, Ryuji Ohsawa, Shoji Hisada