Patents by Inventor Sadatoshi Sakuma

Sadatoshi Sakuma 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: 11642402
    Abstract: A method of producing an immunotherapy vaccine is provided. The method includes performing a heat treatment to exosomes separated from cancer cells or body fluids including blood of a cancer patient to promote inactivation of proteolytic enzymes in the exosomes, and introducing or co-culturing the exosomes in dendritic cells derived from blood of the cancer patient or a healthy person to make antigen-presenting cells.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: May 9, 2023
    Assignees: CYTIX INC., KINKO CAPITAL CO.. LTD.
    Inventors: Sadatoshi Sakuma, Michiyo Osono, Eriko Oka
  • Publication number: 20220233603
    Abstract: The present invention is directed to methods for preparing a recombinant cell and a fusion cell for a dendritic cell-based cancer vaccine, wherein the recombinant cell and the fusion cell comprise DNA of a cancer cell. The present invention is also directed to the fusion cells comprising genomic DNA of a tumor cell, a method for fusing human dendritic cells and fibroblast cells, a pharmaceutical composition comprising the fusion cell, and a method of preventing cancer comprising administering to a cancer patient an effective amount of the fusion cells.
    Type: Application
    Filed: May 27, 2019
    Publication date: July 28, 2022
    Inventors: Sadatoshi SAKUMA, Michiyo OSONO, Futoshi ISHIKAWA, Toshiki UOZUMI, Eriko OKA, Hiroki MURATA, Hui Yu YANG
  • Publication number: 20210069311
    Abstract: A method of producing an immunotherapy vaccine is provided. The method includes performing a heat treatment to exosomes separated from cancer cells or body fluids including blood of a cancer patient to promote inactivation of proteolytic enzymes in the exosomes, and introducing or co-culturing the exosomes in dendritic cells derived from blood of the cancer patient or a healthy person to make antigen-presenting cells.
    Type: Application
    Filed: September 3, 2020
    Publication date: March 11, 2021
    Inventors: Sadatoshi SAKUMA, Michiyo OSONO, Eriko OKA
  • Patent number: 9622955
    Abstract: The present application relates to use of a Midkine family protein for growing hair on a mammal, or in the manufacture of a medicament for growing hair on a mammal, especially for treatment or prevention of different forms of alopecia.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: April 18, 2017
    Assignee: Advangen International Pty Ltd
    Inventors: Sadatoshi Sakuma, Maria Halasz, Darren Jones
  • Patent number: 9163081
    Abstract: It is intended to provide an antibody which inhibits the function of midkine. An antibody which recognizes an epitope consisting of amino acid residues 62 to 104 of midkine or a fragment thereof; DNA encoding the antibody or a fragment thereof; a recombinant vector which contains the DNA; a transformant which has the vector or a hybridoma which produces the antibody; a method for producing the antibody by allowing the transformant or hybridoma to produce the antibody or a fragment thereof and collecting the resulting antibody or fragment thereof; a pharmaceutical composition containing the antibody or a fragment thereof as an active ingredient; and a diagnostic agent containing the antibody or a fragment thereof as an active ingredient.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: October 20, 2015
    Assignee: Medical Therapies Limited
    Inventors: Takashi Matsui, Takashi Muramatsu, Masatoshi Hayashibara, Takanori Ito, Tsukasa Uno, Sadatoshi Sakuma
  • Publication number: 20150044139
    Abstract: The present application relates to use of a Midkine family protein for growing hair on a mammal, or in the manufacture of a medicament for growing hair on a mammal, especially for treatment or prevention of different forms of alopecia.
    Type: Application
    Filed: August 20, 2014
    Publication date: February 12, 2015
    Inventors: Sadatoshi Sakuma, Maria Halasz, Darren Jones
  • Patent number: 8716230
    Abstract: The inventors examined the role of MK in experimental autoimmune encephalomyelitis, which is a human model for multiple sclerosis. As a result, they discovered that MK has the effect of inhibiting regulatory T cells, and that the autoimmune mechanism induced by type 1 helper T cells can be suppressed by inhibiting MK expression or its activity, thereby increasing the number of regulatory T cells. Furthermore, it was found that diseases associated with the functional disorder of regulatory T cells can be treated with the administration of an inhibitor that inhibits MK expression or activity.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: May 6, 2014
    Assignee: Ribomic Inc.
    Inventors: Akio Suzumura, Jinyan Wang, Takashi Matsui, Sadatoshi Sakuma, Shin Miyakawa, Masatoshi Fujiwara, Yoshikazu Nakamura
  • Publication number: 20130067604
    Abstract: The present application relates to use of a Midkine family protein for growing hair on a mammal, or in the manufacture of a medicament for growing hair on a mammal, especially for treatment or prevention of different forms of alopecia.
    Type: Application
    Filed: February 23, 2011
    Publication date: March 14, 2013
    Inventors: Sadatoshi Sakuma, Maria Halasz, Darren Jones
  • Patent number: 8128934
    Abstract: The inventors examined the role of MK in experimental autoimmune encephalomyelitis, which is a human model for multiple sclerosis. As a result, they discovered that MK has the effect of inhibiting regulatory T cells, and that the autoimmune mechanism induced by type 1 helper T cells can be suppressed by inhibiting MK expression or its activity, thereby increasing the number of regulatory T cells. Furthermore, it was found that diseases associated with the functional disorder of regulatory T cells can be treated with the administration of an inhibitor that inhibits MK expression or activity.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: March 6, 2012
    Assignees: Ribomic, Inc., Cellmid Limited
    Inventors: Akio Suzumura, Jinyan Wang, Takashi Matsui, Sadatoshi Sakuma, Shin Miyakawa, Masatoshi Fujiwara, Yoshikazu Nakamura
  • Patent number: 8106009
    Abstract: A pharmaceutical composition for treating or preventing cytopathy caused by ischemia, comprising a midkine family protein as an active ingredient, and a pharmaceutical composition for treating or preventing ischemic disorders, comprising a midkine family protein as an active ingredient, are provided. Midkine is efficacious in treating or preventing ischemic disorders and cytopathy caused by ischemia and can remarkably prevent, for example, the development of cerebral infarction, a representative of ischemic brain disorders. The pharmaceutical composition of the present invention is also efficacious against, for example, cerebral ischemic disorders such as cerebrovascular-spasm following a subarachnoid hemorrhage, Alzheimer's disease, senile dementia of Alzheimer's type, and cerebrovascular senile dementia, as well as cerebral ischemia, transient cerebral ischemic disease, and head trauma, and other cerebrovascular diseases such as Parkinson's disease, Huntington's chorea, and amyotrophic regressive disorders.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: January 31, 2012
    Assignee: Medical Therapies Limited
    Inventors: Yoshihiro Yoshida, Shinya Ikematsu, Sadatoshi Sakuma, Munehiro Oda
  • Patent number: 8080649
    Abstract: Provided is a high-quality aptamer against midkine. An aptamer possessing an inhibitory activity against midkine; a complex comprising an aptamer possessing a binding activity or inhibitory activity against midkine and a functional substance (for example, affinity substances, substances for labeling, enzymes, drug delivery vehicles, drugs and the like); a pharmaceutical drug, cell migration inhibitor, diagnostic reagent, labeling agent and the like comprising an aptamer possessing a binding activity or inhibitory activity against midkine, or a complex comprising the aptamer and a functional substance; a cell migration inhibitor, a diagnostic reagent, a labeling agent and the like.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: December 20, 2011
    Assignee: Ribomic Inc.
    Inventors: Shin Miyakawa, Masatoshi Fujiwara, Yoshikazu Nakamura, Takashi Matsui, Sadatoshi Sakuma
  • Publication number: 20110086906
    Abstract: The inventors examined the role of MK in experimental autoimmune encephalomyelitis, which is a human model for multiple sclerosis. As a result, they discovered that MK has the effect of inhibiting regulatory T cells, and that the autoimmune mechanism induced by type 1 helper T cells can be suppressed by inhibiting MK expression or its activity, thereby increasing the number of regulatory T cells. Furthermore, it was found that diseases associated with the functional disorder of regulatory T cells can be treated with the administration of an inhibitor that inhibits MK expression or activity.
    Type: Application
    Filed: October 12, 2010
    Publication date: April 14, 2011
    Inventors: Akio SUZUMURA, Jinyan Wang, Takashi Matsui, Sadatoshi Sakuma, Shin Miyakawa, Masatoshi Fujiwara, Yoshikazu Nakamura
  • Publication number: 20100311187
    Abstract: It is intended to provide an antibody which inhibits the function of midkine. An antibody which recognizes an epitope consisting of amino acid residues 62 to 104 of midkine or a fragment thereof; DNA encoding the antibody or a fragment thereof; a recombinant vector which contains the DNA; a transformant which has the vector or a hybridoma which produces the antibody; a method for producing the antibody by allowing the transformant or hybridoma to produce the antibody or a fragment thereof and collecting the resulting antibody or fragment thereof; a pharmaceutical composition containing the antibody or a fragment thereof as an active ingredient; and a diagnostic agent containing the antibody or a fragment thereof as an active ingredient.
    Type: Application
    Filed: November 13, 2007
    Publication date: December 9, 2010
    Inventors: Takashi Matsui, Takashi Muramatsu, Masatoshi Hayashibara, Takanori Ito, Tsukasa Uno, Sadatoshi Sakuma
  • Patent number: 7820160
    Abstract: The present invention provides a pharmaceutical composition for the prevention or treatment of angiostenosis, comprising a compound inhibiting the function of midkine (MK) in blood vessel tissues as an effective ingredient. The present invention is useful for the prevention or treatment of angiostenosis attributed to arteriosclerosis or restenosis after percutaneous transluminal coronary angioplasty (PTCA). As compounds inhibiting the function of MK, antisense oligonucleotides that bind to a segment of a single-stranded mRNA transcribed from the MK gene to inhibit the synthesis of MK protein in cells, antibodies against the MK protein, and such can be used.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: October 26, 2010
    Assignee: Medical Therapies Limited
    Inventors: Kenji Kadomatsu, Mitsuru Horiba, Takashi Muramatsu, Shinya Ikematsu, Sadatoshi Sakuma
  • Publication number: 20100092488
    Abstract: The inventors examined the role of MK in experimental autoimmune encephalomyelitis, which is a human model for multiple sclerosis. As a result, they discovered that MK has the effect of inhibiting regulatory T cells, and that the autoimmune mechanism induced by type 1 helper T cells can be suppressed by inhibiting MK expression or its activity, thereby increasing the number of regulatory T cells. Furthermore, it was found that diseases associated with the functional disorder of regulatory T cells can be treated with the administration of an inhibitor that inhibits MK expression or activity.
    Type: Application
    Filed: November 14, 2006
    Publication date: April 15, 2010
    Inventors: Akio Suzumura, Jinyan Wang, Takashi Matsui, Sadatoshi Sakuma, Shin Miyakawa, Masatoshi Fujiwara, Yoshikazu Nakamura
  • Publication number: 20100004432
    Abstract: Provided is a high-quality aptamer against midkine. An aptamer possessing an inhibitory activity against midkine; a complex comprising an aptamer possessing a binding activity or inhibitory activity against midkine and a functional substance (for example, affinity substances, substances for labeling, enzymes, drug delivery vehicles, drugs and the like); a pharmaceutical drug, cell migration inhibitor, diagnostic reagent, labeling agent and the like comprising an aptamer possessing a binding activity or inhibitory activity against midkine, or a complex comprising the aptamer and a functional substance; a cell migration inhibitor, a diagnostic reagent, a labeling agent and the like.
    Type: Application
    Filed: November 14, 2007
    Publication date: January 7, 2010
    Inventors: Shin Miyakawa, Masatoshi Fujiwara, Yoshikazu Nakamura, Takashi Matsui, Sadatoshi Sakuma
  • Publication number: 20090047319
    Abstract: Provided is the excellent prevention or treatment of a vascular occlusive disease such as vascular restenosis. A pharmaceutical composition for a obstructive vascular disease comprising a nucleic acid construct capable of inhibiting the expression of a midkine gene through RNA interference and a collagen molecule. The use of the nucleic acid construct capable of inhibiting the expression of an MK protein through RNA interference in the presence of the collagen molecule can provide an excellent inhibitory effect on the thickened vascular intima.
    Type: Application
    Filed: May 24, 2006
    Publication date: February 19, 2009
    Inventors: Kenji Kadomatsu, Hiroshi Banno, Yoshifumi Takei, Kimihiro Komori, Takashi Muramatsu, Sadatoshi Sakuma
  • Publication number: 20080107659
    Abstract: The present invention provides a pharmaceutical composition for the prevention or treatment of angiostenosis, comprising a compound inhibiting the function of midkine (MK) in blood vessel tissues as an effective ingredient. The present invention is useful for the prevention or treatment of angiostenosis attributed to arteriosclerosis or restenosis after percutaneous transluminal coronary angioplasty (PTCA). As compounds inhibiting the function of MK, antisense oligonucleotides that bind to a segment of a single-stranded mRNA transcribed from the MK gene to inhibit the synthesis of MK protein in cells, antibodies against the MK protein, and such can be used.
    Type: Application
    Filed: November 7, 2007
    Publication date: May 8, 2008
    Inventors: Kenji Kadomatsu, Mitsuru Horiba, Takashi Muramatsu, Shinya Ikematsu, Sadatoshi Sakuma
  • Patent number: 7309695
    Abstract: The present invention provides a pharmaceutical composition for the prevention or treatment of angiostenosis, comprising a compound inhibiting the function of midkine (MK) in blood vessel tissues as an effective ingredient. The present invention is useful for the prevention or treatment of angiostenosis attributed to arteriosclerosis or restenosis after percutaneous transluminal coronary angioplasty (PTCA). As compounds inhibiting the function of MK, antisense oligonucleotides that bind to a segment of a single-stranded mRNA transcribed from the MK gene to inhibit the synthesis of MK protein in cells, antibodies against the MK protein, and such can be used.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: December 18, 2007
    Assignee: Takashi Muramatsu
    Inventors: Kenji Kadomatsu, Mitsuru Horiba, Takashi Muramatsu, Shinya Ikematsu, Sadatoshi Sakuma
  • Patent number: 7090983
    Abstract: MK (midkine) was found to rise in the blood or urine of patients with various types of cancers at early stage. Based on this finding, a method for detecting early cancer, comprising the step of measuring MK in blood or urine was completed.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: August 15, 2006
    Assignee: Muramatsu, Takashi
    Inventors: Takashi Muramatsu, Kohji Okamoto, Shinya Ikematsu, Munehiro Oda, Hideshi Kumai, Sadatoshi Sakuma