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).
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Patent number: 10711047Abstract: Peptide vaccines against cancer are described herein. In particular, the present invention describes epitope peptides derived from CDCA1 that elicit CTLs. The present invention also provides established CTLs that specifically recognize HLA-A24 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 agents containing the CDCA1 polypeptides or polynucleotides encoding thereof, as well as exosomes and antigen-presenting cells as active ingredients. Furthermore, the present invention provides methods for treating and/or prophylaxis of (i.e.Type: GrantFiled: June 8, 2016Date of Patent: July 14, 2020Assignee: ONCOTHERAPY SCIENCE, INC.Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura
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Patent number: 10597431Abstract: 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: GrantFiled: March 22, 2018Date of Patent: March 24, 2020Assignee: ONCOTHERAPY SCIENCE, INC.Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe, Yusuke Nakamura, Yoichi Furukawa
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Publication number: 20180222954Abstract: 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: ApplicationFiled: March 22, 2018Publication date: August 9, 2018Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe, Yusuke Nakamura, Yoichi Furukawa
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Patent number: 9975935Abstract: 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: GrantFiled: August 4, 2016Date of Patent: May 22, 2018Assignee: OncoTherapy Science, Inc.Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe, Yusuke Nakamura, Yoichi Furukawa
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Patent number: 9896492Abstract: 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: GrantFiled: June 29, 2016Date of Patent: February 20, 2018Assignee: OncoTherapy Science, Inc.Inventors: Yusuke Nakamura, Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
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Patent number: 9745343Abstract: 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: GrantFiled: July 21, 2015Date of Patent: August 29, 2017Assignee: OncoTherapy Science, Inc.Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
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Patent number: 9675680Abstract: According to the present invention, peptides having the amino acid sequence of SEQ ID NOs: 14, 21, 23, 27, 36, 46, 57, 60 and 62 were demonstrated to have cytotoxic T lymphocyte (CTL) inducibility. Therefore, the present invention provides a peptide having the amino acid sequence selected from among SEQ ID NOs: 14, 21, 23, 27, 36, 46, 57, 60 and 62. The peptide can include one, two, or several amino acid substitutions, deletions, insertions, or additions so long as its CTL inducibility is retained. Furthermore, the present invention provides pharmaceutical agents for the treatment and/or prophylaxis of cancers, and/or prevention of postoperative recurrence thereof, which contain any of these peptides. Pharmaceutical agents of this invention include vaccines.Type: GrantFiled: October 27, 2015Date of Patent: June 13, 2017Assignee: OncoTherapy ScienceInventors: Takuya Tsunoda, Ryuji Ohsawa
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Publication number: 20160368958Abstract: 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: ApplicationFiled: June 29, 2016Publication date: December 22, 2016Inventors: Yusuke NAKAMURA, Takuya TSUNODA, Ryuji OHSAWA, Sachiko YOSHIMURA, Tomohisa WATANABE
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Publication number: 20160340398Abstract: 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: ApplicationFiled: August 4, 2016Publication date: November 24, 2016Inventors: TAKUYA TSUNODA, RYUJI OHSAWA, SACHIKO YOSHIMURA, TOMOHISA WATANABE, YUSUKE NAKAMURA, YOICHI FURUKAWA
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Publication number: 20160272692Abstract: Peptide vaccines against cancer are described herein. In particular, the present invention describes epitope peptides derived from CDCA1 that elicit CTLs. The present invention also provides established CTLs that specifically recognize HLA-A24 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 agents containing the CDCA1 polypeptides or polynucleotides encoding thereof, as well as exosomes and antigen-presenting cells as active ingredients. Furthermore, the present invention provides methods for treating and/or prophylaxis of (i.e.Type: ApplicationFiled: June 8, 2016Publication date: September 22, 2016Inventors: TAKUYA TSUNODA, RYUJI OHSAWA, SACHIKO YOSHIMURA
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Patent number: 9446106Abstract: 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: GrantFiled: April 17, 2015Date of Patent: September 20, 2016Assignee: OncoTherapy Science, Inc.Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe, Yusuke Nakamura, Yoichi Furukawa
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Patent number: 9403890Abstract: 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 cancer immunotherapy are described herein. The inventive peptides encompass both the above mentioned amino acid sequences and modified versions thereof, provided they retain the requisite cytotoxic T cell inducibility of the original sequence. Further provided are nucleic acids encoding the peptides as well as pharmaceutical agents, substances and/or compositions that include any of the peptides or nucleic acids.Type: GrantFiled: March 11, 2014Date of Patent: August 2, 2016Assignee: OncoTherapy Science, Inc.Inventors: Yusuke Nakamura, Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
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Publication number: 20160200764Abstract: 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: ApplicationFiled: January 6, 2016Publication date: July 14, 2016Inventors: Takuya Tsunoda, Ryuji Ohsawa
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Patent number: 9387238Abstract: Peptide vaccines against cancer are described herein. In particular, the present invention describes epitope peptides derived from CDCA1 that elicit CTLs. The present invention also provides established CTLs that specifically recognize HLA-A24 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 agents containing the CDCA1 polypeptides or polynucleotides encoding thereof, as well as exosomes and antigen-presenting cells as active ingredients. Furthermore, the present invention provides methods for treating and/or prophylaxis of (i.e.Type: GrantFiled: June 18, 2009Date of Patent: July 12, 2016Assignee: OncoTherapy Science, Inc.Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura
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Publication number: 20160101171Abstract: According to the present invention, peptides having the amino acid sequence of SEQ ID NOs: 14, 21, 23, 27, 36, 46, 57, 60 and 62 were demonstrated to have cytotoxic T lymphocyte (CTL) inducibility. Therefore, the present invention provides a peptide having the amino acid sequence selected from among SEQ ID NOs: 14, 21, 23, 27, 36, 46, 57, 60 and 62. The peptide can include one, two, or several amino acid substitutions, deletions, insertions, or additions so long as its CTL inducibility is retained. Furthermore, the present invention provides pharmaceutical agents for the treatment and/or prophylaxis of cancers, and/or prevention of postoperative recurrence thereof, which contain any of these peptides. Pharmaceutical agents of this invention include vaccines.Type: ApplicationFiled: October 27, 2015Publication date: April 14, 2016Inventors: Takuya TSUNODA, Ryuji OHSAWA
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Patent number: 9284349Abstract: 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: GrantFiled: May 9, 2014Date of Patent: March 15, 2016Assignee: ONCOTHERAPY SCIENCE, INC.Inventors: Takuya Tsunoda, Ryuji Ohsawa
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Patent number: 9193765Abstract: According to the present invention, peptides having the amino acid sequence of SEQ ID NOs: 14, 21, 23, 27, 36, 46, 57, 60 and 62 were demonstrated to have cytotoxic T lymphocyte (CTL) inducibility. Therefore, the present invention provides a peptide having the amino acid sequence selected from among SEQ ID NOs: 14, 21, 23, 27, 36, 46, 57, 60 and 62. The peptide can include one, two, or several amino acid substitutions, deletions, insertions, or additions so long as its CTL inducibility is retained. Furthermore, the present invention provides pharmaceutical agents for the treatment and/or prophylaxis of cancers, and/or prevention of postoperative recurrence thereof, which contain any of these peptides. Pharmaceutical agents of this invention include vaccines.Type: GrantFiled: February 3, 2014Date of Patent: November 24, 2015Assignee: ONCOTHERAPY SCIENCE, INC.Inventors: Takuya Tsunoda, Ryuji Ohsawa
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Publication number: 20150315239Abstract: 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: ApplicationFiled: July 21, 2015Publication date: November 5, 2015Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura, Tomohisa Watanabe
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Publication number: 20150290307Abstract: 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: ApplicationFiled: April 17, 2015Publication date: October 15, 2015Inventors: Takuya TSUNODA, Ryuji OHSAWA, Sachiko YOSHIMURA, Tomohisa WATANABE, Yusuke NAKAMURA, Yoichi FURUKAWA
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Patent number: 9119800Abstract: The present invention provides a pharmaceutical agent or composition containing one or more peptides having the amino acid sequence of SEQ ID NO: 1 or 2, or one or more polynucleotides encoding such a peptide formulated for the treatment and/or prevention of cancer in a subject whose HLA-A antigen is HLA-A0206. Furthermore, the present invention provides a method of inducing CTL and antigen-presenting cells using such peptides, polynucleotides or pharmaceutical agents.Type: GrantFiled: August 14, 2009Date of Patent: September 1, 2015Assignee: OncoTherapy Science, Inc.Inventors: Takuya Tsunoda, Ryuji Ohsawa, Sachiko Yoshimura