Patents by Inventor Mari Dezawa

Mari Dezawa 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: 20120244129
    Abstract: Objects of the present invention are to provide a method for directly obtaining pluripotent stem cells which do not have tumorigenic property from body tissue and the thus obtained pluripotent stem cells. The present invention relates to SSEA-3 (+) pluripotent stem cells that can be isolated from body tissue.
    Type: Application
    Filed: March 30, 2012
    Publication date: September 27, 2012
    Inventors: Mari Dezawa, Yoshinori Fujiyoshi, Youichi Nabeshima, Shohei Wakao, Masanori Yoshida, Yasumasa Kuroda
  • Patent number: 8133725
    Abstract: There is provided a method of inducing differentiation of bone marrow stromal cells to neural cells or skeletal muscle cells by introduction of a Notch gene. Specifically, the invention provides a method of inducing differentiation of bone marrow stromal cells to neural cells or skeletal muscle cells in vitro, which method comprises introducing a Notch gene and/or a Notch signaling related gene into the cells, wherein the finally obtained differentiated cells are the result of cell division of the bone marrow stromal cells into which the Notch gene and/or Notch signaling related gene have been introduced. The invention also provides a method of inducing further differentiation of the differentiation-induced neural cells to dopaminergic neurons or acetylcholinergic neurons. The invention yet further provides a treatment method for neurodegenerative and skeletal muscle degenerative diseases which employs neural precursor cells, neural cells or skeletal muscle cells produced by the method of the invention.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: March 13, 2012
    Assignee: SanBio, Inc.
    Inventors: Mari Dezawa, Hajime Sawada, Hiroshi Kanno, Masahiko Takano
  • Publication number: 20120009160
    Abstract: There is provided a method of inducing differentiation of bone marrow stromal cells to neural cells or skeletal muscle cells by introduction of a Notch gene. Specifically, the invention provides a method of inducing differentiation of bone marrow stromal cells to neural cells or skeletal muscle cells in vitro, which method comprises introducing a Notch gene and/or a Notch signaling related gene into the cells, wherein the finally obtained differentiated cells are the result of cell division of the bone marrow stromal cells into which the Notch gene and/or Notch signaling related gene have been introduced. The invention also provides a method of inducing further differentiation of the differentiation-induced neural cells to dopaminergic neurons or acetylcholinergic neurons. The invention yet further provides a treatment method for neurodegenerative and skeletal muscle degenerative diseases which employs neural precursor cells, neural cells or skeletal muscle cells produced by the method of the invention.
    Type: Application
    Filed: September 15, 2011
    Publication date: January 12, 2012
    Inventors: Mari DEZAWA, Hajime Sawada, Hiroshi Kanno, Masahiko Takano
  • Patent number: 8092792
    Abstract: Disclosed are methods and materials for treatment of central nervous system lesions. Preferred methods and materials comprise neuronal precursor cells and/or marrow adherent stem cell-derived neuronal cells.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: January 10, 2012
    Assignee: Sanbio, Inc.
    Inventors: Mari Dezawa, Keita Mori
  • Publication number: 20110229442
    Abstract: Disclosed are cells exhibiting neuronal progenitor cell characteristics, and methods of making them from marrow adherent stem cells by regulating cellular pathways in the marrow adherent stem cells that are associated with glial transdifferentiation of the marrow adherent stem cells.
    Type: Application
    Filed: May 23, 2011
    Publication date: September 22, 2011
    Inventor: Mari Dezawa
  • Publication number: 20110070647
    Abstract: Objects of the present invention are to provide a method for directly obtaining pluripotent stem cells from body tissue and the thus obtained pluripotent stem cells. The present invention relates to SSEA-3 (+) pluripotent stem cells that can be isolated from body tissue.
    Type: Application
    Filed: July 14, 2010
    Publication date: March 24, 2011
    Inventors: Mari DEZAWA, Yoshinori FUJIYOSHI, Youichi NABESHIMA, Shohei WAKAO
  • Publication number: 20100310523
    Abstract: There is provided a method of inducing differentiation of bone marrow stromal cells to neural cells or skeletal muscle cells by introduction of a Notch gene. Specifically, the invention provides a method of inducing differentiation of bone marrow stromal cells to neural cells or skeletal muscle cells in vitro, which method comprises introducing a Notch gene and/or a Notch signaling related gene into the cells, wherein the finally obtained differentiated cells are the result of cell division of the bone marrow stromal cells into which the Notch gene and/or Notch signaling related gene have been introduced. The invention also provides a method of inducing further differentiation of the differentiation-induced neural cells to dopaminergic neurons or acetylcholinergic neurons. The invention yet further provides a treatment method for neurodegenerative and skeletal muscle degenerative diseases which employs neural precursor cells, neural cells or skeletal muscle cells produced by the method of the invention.
    Type: Application
    Filed: September 10, 2009
    Publication date: December 9, 2010
    Inventors: Mari Dezawa, Hajime Sawada, Hiroshi Kanno, Masahiko Takano
  • Publication number: 20100144034
    Abstract: There is provided a method of inducing differentiation of bone marrow stromal cells to neural cells or skeletal muscle cells by introduction of a Notch gene. Specifically, the invention provides a method of inducing differentiation of bone marrow stromal cells to neural cells or skeletal muscle cells in vitro, which method comprises introducing a Notch gene and/or a Notch signaling related gene into the cells, wherein the finally obtained differentiated cells are the result of cell division of the bone marrow stromal cells into which the Notch gene and/or Notch signaling related gene have been introduced. The invention also provides a method of inducing further differentiation of the differentiation-induced neural cells to dopaminergic neurons or acetylcholinergic neurons. The invention yet further provides a treatment method for neurodegenerative and skeletal muscle degenerative diseases which employs neural precursor cells, neural cells or skeletal muscle cells produced by the method of the invention.
    Type: Application
    Filed: February 2, 2010
    Publication date: June 10, 2010
    Inventors: Mari Dezawa, Hajime Sawada, Hiroshi Kanno, Masahiko Takano
  • Patent number: 7718429
    Abstract: A method of efficiently and conveniently inducing differentiation from bone marrow stromal cells to skeletal muscle cells, which comprises the steps of: (a) the step of adding one or more kinds of substances selected from the group consisting of a cyclic AMP increasing agent, a cAMP analogue, and a cell differentiation stimulating factor to a culture of bone marrow stromal cells, wherein said bone marrow stromal cells are not treated with a demethylating agent, and culturing the cells; (b) the step of introducing a Notch gene and/or a Notch signaling related gene into the cells obtained in the step (a), and culturing the cells to obtain a culture of myoblasts, provided that said culture does not contain the cells introduced with the gene and non-introduced cells; and (c) the step of adding a Notch ligand to the culture of myoblasts obtained in the step (b), and culturing the cells.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: May 18, 2010
    Assignee: Kyoto University
    Inventors: Mari Dezawa, Yo-ichi Nabeshima, Mikio Hoshino
  • Patent number: 7682825
    Abstract: There is provided a method of inducing differentiation of bone marrow stromal cells to neural cells or skeletal muscle cells by introduction of a Notch gene. Specifically, the invention provides a method of inducing differentiation of bone marrow stromal cells to neural cells or skeletal muscle cells in vitro, which method comprises introducing a Notch gene and/or a Notch signaling related gene into the cells, wherein the finally obtained differentiated cells are the result of cell division of the bone marrow stromal cells into which the Notch gene and/or Notch signaling related gene have been introduced. The invention also provides a method of inducing further differentiation of the differentiation-induced neural cells to dopaminergic neurons or acetylcholinergic neurons. The invention yet further provides a treatment method for neurodegenerative and skeletal muscle degenerative diseases which employs neural precursor cells, neural cells or skeletal muscle cells produced by the method of the invention.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: March 23, 2010
    Assignee: Sanbio, Inc.
    Inventors: Mari Dezawa, Hajime Sawada, Hiroshi Kanno, Masahiko Takano
  • Publication number: 20100034790
    Abstract: Disclosed are methods and materials for treatment of central nervous system lesions. Preferred methods and materials comprise neuronal precursor cells and/or marrow adherent stem cell-derived neuronal cells.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 11, 2010
    Inventors: Mari Dezawa, Keita Mori
  • Publication number: 20090324561
    Abstract: Disclosed are cells exhibiting neuronal progenitor cell characteristics, and methods of making them from marrow adherent stem cells by regulating cellular pathways in the marrow adherent stem cells that are associated with glial transdifferentiation of the marrow adherent stem cells.
    Type: Application
    Filed: August 26, 2009
    Publication date: December 31, 2009
    Inventor: Mari Dezawa
  • Publication number: 20080113435
    Abstract: A method of efficiently and conveniently inducing differentiation from bone marrow stromal cells to skeletal muscle cells, which comprises the steps of: (a) the step of adding one or more kinds of substances selected from the group consisting of a cyclic AMP increasing agent, a cAMP analogue, and a cell differentiation stimulating factor to a culture of bone marrow stromal cells, wherein said bone marrow stromal cells are not treated with a demethylating agent, and culturing the cells; (b) the step of introducing a Notch gene and/or a Notch signaling related gene into the cells obtained in the step (a), and culturing the cells to obtain a culture of myoblasts, provided that said culture does not contain the cells introduced with the gene and non-introduced cells; and (c) the step of adding a Notch ligand to the culture of myoblasts obtained in the step (b), and culturing the cells.
    Type: Application
    Filed: December 22, 2005
    Publication date: May 15, 2008
    Applicant: KYOTO UNIVERSITY
    Inventors: Mari Dezawa, Yo-ichi Nabeshima, Mikio Hoshino
  • Publication number: 20060251624
    Abstract: Disclosed are cells exhibiting neuronal progenitor cell characteristics, and methods of making them from marrow adherent stem cells by regulating cellular pathways in the marrow adherent stem cells that are associated with glial transdifferentiation of the marrow adherent stem cells.
    Type: Application
    Filed: April 7, 2005
    Publication date: November 9, 2006
    Inventor: Mari Dezawa
  • Publication number: 20060216276
    Abstract: Disclosed are methods and materials for treatment of central nervous system lesions. Preferred methods and materials comprise neuronal precursor cells and/or marrow adherent stem cell-derived neuronal cells.
    Type: Application
    Filed: March 6, 2006
    Publication date: September 28, 2006
    Inventors: Mari Dezawa, Keita Mori
  • Publication number: 20060166362
    Abstract: There is provided a method of inducing differentiation of bone marrow stromal cells to neural cells or skeletal muscle cells by introduction of a Notch gene. Specifically, the invention provides a method of inducing differentiation of bone marrow stromal cells to neural cells or skeletal muscle cells in vitro, which method comprises introducing a Notch gene and/or a Notch signaling related gene into the cells, wherein the finally obtained differentiated cells are the result of cell division of the bone marrow stromal cells into which the Notch gene and/or Notch signaling related gene have been introduced. The invention also provides a method of inducing further differentiation of the differentiation-induced neural cells to dopaminergic neurons or acetylcholinergic neurons. The invention yet further provides a treatment method for neurodegenerative and skeletal muscle degenerative diseases which employs neural precursor cells, neural cells or skeletal muscle cells produced by the method of the invention.
    Type: Application
    Filed: February 6, 2003
    Publication date: July 27, 2006
    Inventors: Mari Dezawa, Hajime Sawada, Hiroshi Kanno, Masahiko Takano
  • Patent number: 6989271
    Abstract: There is provided a method of inducing bone marrow stromal cells to differentiate into bone marrow stromal cell-derived Schwann cells in vitro, comprising the steps of: collecting bone marrow stromal cells from bone marrow and culturing the cells in a standard essential culture medium supplemented with a serum; adding a reducing agent to the culture medium and further culturing the cells; adding a differentiation inducing agent to the culture medium and further culturing the cells; and adding a cyclic AMP-augmenting agent or a cyclic AMP analogue and/or a glial cell differentiation and survival stimulating factor to the culture medium, and further culturing the cells to obtain the bone marrow stromal cell-derived Schwann cells. There are also provided bone marrow stromal cell-derived Schwann cells obtained thereby and a pharmaceutical composition for neural regeneration that comprises them.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: January 24, 2006
    Assignee: Sanbio, Inc.
    Inventors: Mari Dezawa, Hajime Sawada, Masahiko Takano
  • Publication number: 20050255593
    Abstract: There is provided a method of inducing bone marrow stromal cells to differentiate into bone marrow stromal cell-derived Schwann cells in vitro, comprising the steps of: collecting bone marrow stromal cells from bone marrow and culturing the cells in a standard essential culture medium supplemented with a serum; adding a reducing agent to the culture medium and further culturing the cells; adding a differentiation inducing agent to the culture medium and further culturing the cells; and adding a cyclic AMP-augmenting agent or a cyclic AMP analogue and/or a glial cell differentiation and survival stimulating factor to the culture medium, and further culturing the cells to obtain the bone marrow stromal cell-derived Schwann cells. There are also provided bone marrow stromal cell-derived Schwann cells obtained thereby and a pharmaceutical composition for neural regeneration that comprises them.
    Type: Application
    Filed: July 19, 2005
    Publication date: November 17, 2005
    Applicant: SanBio, Inc.
    Inventors: Mari Dezawa, Hajime Sawada, Masahiko Takano
  • Publication number: 20040197309
    Abstract: There is provided a method of inducing bone marrow stromal cells to differentiate into bone marrow stromal cell-derived Schwann cells in vitro, comprising the steps of: collecting bone marrow stromal cells from bone marrow and culturing the cells in a standard essential culture medium supplemented with a serum; adding a reducing agent to the culture medium and further culturing the cells; adding a differentiation inducing agent to the culture medium and further culturing the cells; and adding a cyclic AMP-augmenting agent or a cyclic AMP analogue and/or a glial cell differentiation and survival stimulating factor to the culture medium, and further culturing the cells to obtain the bone marrow stromal cell-derived Schwann cells. There are also provided bone marrow stromal cell-derived Schwann cells obtained thereby and a pharmaceutical composition for neural regeneration that comprises them.
    Type: Application
    Filed: December 22, 2003
    Publication date: October 7, 2004
    Inventors: Mari Dezawa, Hajime Sawada, Masahiko Takano