Patents by Inventor Noriko Koizumi

Noriko Koizumi 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: 20210153499
    Abstract: The present disclosure provides a method of preserving corneal endothelial cells at a high cell survival rate. The present disclosure provides a method of preserving corneal endothelial cells and/or corneal endothelium-like cells, comprising preserving the corneal endothelial cells and corneal endothelium-like cells in a container with a bottom area of at least about 0.7 cm2. Accordingly to the present invention, corneal endothelial cells can be preserved at a high cell survival rate. Corneal endothelial cells preserved in this manner have functions of normal corneal endothelial cells. Such cells can also be used as cells for treating a corneal endothelial disease or the like.
    Type: Application
    Filed: October 2, 2019
    Publication date: May 27, 2021
    Inventors: Noriko Koizumi, Naoki Okumura
  • Publication number: 20210140965
    Abstract: The purpose of the present invention is to provide a method of purification and preparation of cultured corneal endothelial cells, and in particular, to provide cell surface markers for use in corneal endothelial cells not including transformed cells. Provided are cell markers for distinguishing normal cells and transformed cells, in particular normal and transformed corneal endothelium cells. These cell markers relate to specific cell surface markers, for example, to a normal corneal endothelial surface marker such as CD166, and a transformed cell surface marker such as CD73. By using the transformed cell surface marker such as CD73 to remove transformed cells by sorting, it becomes possible to improve purity of a normal cultured corneal endothelium. By using normal corneal endothelial surface marker such as CD166, or by combined use with the transformed cell surface marker, it becomes possible to provide a means for verifying the purity of a prepared corneal endothelium.
    Type: Application
    Filed: December 23, 2020
    Publication date: May 13, 2021
    Applicants: KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATION, ACTUALEYES INC., CORNEAGEN, INC.
    Inventors: Noriko Koizumi, Naoki Okumura, Hiroatsu HIRANO, Shigeru Kinoshita, Morio UENO
  • Publication number: 20210121494
    Abstract: The present invention provides a medicine and a method for preventing or treating ophthalmic symptoms, disorders, or diseases. The present invention provides an mTOR-inhibitor-containing composition for preventing or treating ophthalmic symptoms, disorders, or diseases. In some of the embodiments of the present invention, this composition is capable of treating or preventing corneal endothelial symptoms, disorders, or diseases; in particular, corneal endothelial symptoms, disorders, or diseases that are attributed to overexpression of the transforming growth factor-? (TGF-?) signal and/or extracellular matrix (ECM).
    Type: Application
    Filed: December 2, 2020
    Publication date: April 29, 2021
    Inventors: Noriko Koizumi, Naoki Okumura
  • Patent number: 10980787
    Abstract: Provided is a drug or method for treating or preventing a condition, disorder, or disease of the corneal endothelium caused by transforming growth factor-? (TGF-?) signals, mitochondrial abnormalities, and/or endoplasmic reticulum (ER) associated stress in corneal endothelial cells, using p38 MAP kinase inhibitors. The present invention provides a drug which includes p38 MAP kinase inhibitors, and which is for treating or preventing a condition, disorder, or disease of the corneal endothelium caused by TGF-? signals and/or mitochondrial abnormalities in corneal endothelial cells. In the preferred embodiment, the condition, disorder, or disease of the corneal endothelium is Fuchs' corneal endothelial dystrophy.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: April 20, 2021
    Assignee: THE DOSHISHA
    Inventors: Noriko Koizumi, Naoki Okumura
  • Patent number: 10959997
    Abstract: The present invention provides an agent for treating or preventing a disease, a disorder or a condition of a corneal endothelium, said agent comprising a corneal endothelial cell and a myosin II-specific inhibitor. More specifically, the myosin II-specific inhibitor is blebbistatin. The disease, the disorder or the condition is typically a disorder associated with Fuchs endothelial corneal dystrophy or corneal endothelial dysfunction (bullous keratopathy). Also provided is a method for treating or preventing a corneal endothelial disease, said method comprising a step of administering an effective amount of a myosin II-specific inhibitor together with a corneal endothelial cell to a subject.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: March 30, 2021
    Assignees: KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATION, THE DOSHISHA, SENJU PHARMACEUTICAL CO., LTD.
    Inventors: Noriko Koizumi, Naoki Okumura, Shigeru Kinoshita
  • Publication number: 20210077476
    Abstract: The present disclosure provides a composition for treating or preventing symptoms, disorders, or diseases of the corneal endothelium. The present invention specifically provides a composition which is for treating or preventing symptoms, disorders, or diseases of the corneal endothelium, and includes (T)EW-7197 (N-((4-([1,2,4]triazolo[1,5-a]pyridin-6-yl)-5-(6-methylpyridin-2-yl)-1H-imidazol-2-yl)methyl)-2-fluoroaniline), a derivative thereof, a pharmaceutically acceptable salt thereof, or a solvate of any of the foregoing.
    Type: Application
    Filed: December 13, 2018
    Publication date: March 18, 2021
    Applicants: THE DOSHISHA, SENJU PHARMACEUTICAL CO., LTD.
    Inventors: Noriko KOIZUMI, Naoki OKUMURA, Mayumi YAMAMOTO
  • Publication number: 20210059995
    Abstract: The inventors have found that VCP inhibitors protect corneal endothelial cells and corneal epithelial cells. Accordingly, the disclosure provides a composition for protecting a cornea comprising a compound of formula (I) or an ester, oxide, pharmaceutically acceptable salt or solvate thereof. In another aspect the disclosure provides a composition for treating and/or preventing a corneal disease comprising a compound of formula (I). In a further aspect the disclosure provides a composition for ocular irrigation comprising a compound of formula (I). In a still further aspect the disclosure provides a composition for preserving a corneal graft comprising a compound of formula (I).
    Type: Application
    Filed: December 26, 2018
    Publication date: March 4, 2021
    Applicants: Kyoto University, Kyoto Prefectural Public University Corporation, The Doshisha
    Inventors: Hanako Ikeda, Akira Kakizuka, Shigeru Kinoshita, Takahiro Nakamura, Maho Nagata, Noriko Koizumi, Naoki Okumura
  • Patent number: 10908161
    Abstract: The purpose of the present invention is to provide a method of purification and preparation of cultured corneal endothelial cells, and in particular, to provide cell surface markers for use in corneal endothelial cells not including transformed cells. Provided are cell markers for distinguishing normal cells and transformed cells, in particular normal and transformed corneal endothelium cells. These cell markers relate to specific cell surface markers, for example, to a normal corneal endothelial surface marker such as CD166, and a transformed cell surface marker such as CD73. By using the transformed cell surface marker such as CD73 to remove transformed cells by sorting, it becomes possible to improve purity of a normal cultured corneal endothelium. By using normal corneal endothelial surface marker such as CD166, or by combined use with the transformed cell surface marker, it becomes possible to provide a means for verifying the purity of a prepared corneal endothelium.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: February 2, 2021
    Assignees: KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATION, ACTUALEYES INC., CORNEAGEN. INC.
    Inventors: Noriko Koizumi, Naoki Okumura, Hiroatsu Hirano, Shigeru Kinoshita, Morio Ueno
  • Publication number: 20210008067
    Abstract: Provided is a medicament or a method for treating or preventing a corneal endothelial condition, disorder or disease due to a transforming growth factor-? (TGF-?) signal in corneal endothelial cells using a p38 MAP kinase inhibitor (in particular AKP-001), such as a pyrimidinyl isoxazole derivative or a pyridyl isoxazole derivative. In a preferred embodiment, the corneal endothelial condition, disorder or disease due to the TGF-? signal is Fuchs' corneal endothelial dystrophy.
    Type: Application
    Filed: July 25, 2018
    Publication date: January 14, 2021
    Applicant: THE DOSHISHA
    Inventors: Noriko KOIZUMI, Naoki OKUMURA
  • Publication number: 20200386744
    Abstract: The present invention provides a method for screening for a compound that is effective against disorders of the corneal endothelium. The method according to the present invention comprises: (a) a step for bringing candidate compounds into contact with immortalized cells of Fuchs' corneal endothelial dystrophy in the presence of transforming growth factor (TGF)-?, making evaluations on the inhibitory activity of said candidate compounds against said TGF-?, and selecting a compound having the inhibitory activity; (b) a step for evaluating the toxicity of the compound selected in step (a) with respect to said immortalized cells; (c) a step for evaluating the inhibitory activity of the compound selected in step (a) against said TGF-?; and (d) a step for selecting a compound that has been evaluated to have low toxicity to said immortalized cells in step (b) and has been evaluated to have inhibitory activity against said TGF-? in step (c).
    Type: Application
    Filed: June 15, 2018
    Publication date: December 10, 2020
    Inventors: Noriko Koizumi, Naoki Okumura
  • Patent number: 10813920
    Abstract: Provided is an agent for treating or preventing a corneal endothelial disorder wherein cell proliferation is required. More specifically, provided is an agent for treating or preventing a corneal endothelial disorder, wherein cell proliferation is required, said agent comprising a p38MAP kinase inhibitor. In a preferred embodiment, the corneal endothelial disorder is a wound. In a preferred embodiment, the p38MAP kinase inhibitor is soluble in water. The p38MAP kinase inhibitor may comprise 4-(4-fluorophenyl)-2-(4-methylsulfinylphenyl)-5-(4-pyridyl)-1H-imidazole (SB203580) or a salt thereof.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: October 27, 2020
    Assignee: THE DOSHISHA
    Inventors: Noriko Koizumi, Naoki Okumura, Shigeru Kinoshita
  • Publication number: 20200121652
    Abstract: The present invention provides a composition for treating or preventing corneal endothelial symptoms, disorders, or diseases that are attributed to TGF-? signaling in corneal endothelial cells. Provided by the present invention is a composition that includes a compound and that is for treating or preventing endothelial symptoms, disorders, or diseases, wherein, when the compound comes into contact with immortalized cells of Fuchs' corneal endothelial dystrophy, (i) said immortalized cells exhibit a cell survival rate (%) of approximately 90% or more after being cultured for 24-28 hours in Dulbecco's modified Eagle medium (DMEM)+2% fetal bovine serum (FBS)+1% penicillin/streptomycin (P/S), and (ii) the ratio of caspase 3/7 activity (%) in the presence of TGF-? with respect to said cellular survival rate (%) is at most 0.8 after being cultured for 24-28 hours in Dulbecco's modified Eagle medium (DMEM)+2% fetal bovine serum (FBS)+1% penicillin/streptomycin (P/S).
    Type: Application
    Filed: June 15, 2018
    Publication date: April 23, 2020
    Inventors: Noriko Koizumi, Naoki Okumura
  • Publication number: 20200113925
    Abstract: The present invention provides a medicine and a method for preventing or treating ophthalmic symptoms, disorders, or diseases. The present invention provides an mTOR-inhibitor-containing composition for preventing or treating ophthalmic symptoms, disorders, or diseases. In some of the embodiments of the present invention, this composition is capable of treating or preventing corneal endothelial symptoms, disorders, or diseases; in particular, corneal endothelial symptoms, disorders, or diseases that are attributed to overexpression of the transforming growth factor-? (TGF-?) signal and/or extracellular matrix (ECM).
    Type: Application
    Filed: June 15, 2018
    Publication date: April 16, 2020
    Inventors: Noriko Koizumi, Naoki Okumura
  • Patent number: 10335439
    Abstract: [Problem] To provide a method for producing human corneal epithelial sheet, wherein the human corneal epithelial-derived cells obtained by culturing human corneal epithelial cells are cultured on an amnion substrate. [Solution] A method for culturing human corneal epithelial cells using mesenchymal stem cells as the feeder cells; and a method for culturing human corneal epithelial cells using a medium containing a ROCK inhibitor, a phosphodiesterase inhibitor, a MAP kinase inhibitor and a TGF-? receptor inhibitor in various combinations.
    Type: Grant
    Filed: March 9, 2014
    Date of Patent: July 2, 2019
    Assignees: JCR Pharmaceuticals Co., Ltd., Kyoto Prefectural Public University Corporation
    Inventors: Kiwamu Imagawa, Kenichi Maeda, Yuki Hosoda, Shuichi Yokoyama, Naoki Okumura, Noriko Koizumi, Shigeru Kinoshita
  • Patent number: 10174284
    Abstract: [Problem] To provide, in order to manufacture cells to transplant into patients with corneal endothelial failure, a medium used to culture corneal endothelial cells obtained from human corneal tissue and grow said cells while maintaining the morphology thereof as corneal endothelial cells. [Solution] A medium containing a conditioned medium from mesenchymal stem cells; and a method in which said medium is used to culture corneal endothelial cells.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: January 8, 2019
    Assignees: JCR PHARMACEUTICALS CO., LTD., THE DOSHISHA, KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATION
    Inventors: Michio Hagiya, Kiwamu Imagawa, Yuuki Hosoda, Noriko Koizumi, Naoki Okumura, Makiko Nakahara, Shigeru Kinoshita
  • Publication number: 20180369220
    Abstract: Provided is a drug or method for treating or preventing a condition, disorder, or disease of the corneal endothelium caused by transforming growth factor-? (TGF-?) signals, mitochondrial abnormalities, and/or endoplasmic reticulum (ER) associated stress in corneal endothelial cells, using p38 MAP kinase inhibitors. The present invention provides a drug which includes p38 MAP kinase inhibitors, and which is for treating or preventing a condition, disorder, or disease of the corneal endothelium caused by TGF-? signals and/or mitochondrial abnormalities in corneal endothelial cells. In the preferred embodiment, the condition, disorder, or disease of the corneal endothelium is Fuchs' corneal endothelial dystrophy.
    Type: Application
    Filed: December 22, 2016
    Publication date: December 27, 2018
    Applicant: THE DOSHISHA
    Inventors: Noriko KOIZUMI, Naoki OKUMURA
  • Patent number: 10052411
    Abstract: The present invention provides a graft more suitable for the transplantation of corneal endothelial cells and an application method thereof. Specifically, the present invention provides a corneal endothelial preparation capable of cell proliferation in vivo, which contains a substrate and a corneal endothelial cell layer cultured on the substrate, and a treatment method of a disease selected from the group consisting of bullous keratopathy, corneal edema, corneal leukoma and corneal endothelial inflammation, which includes a step of transplanting the preparation to patients. As the substrate, collagen is used.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: August 21, 2018
    Assignee: SENJU PHARMACEUTICAL CO., LTD.
    Inventors: Noriko Koizumi, Shigeru Kinoshita, Yuji Sakamoto
  • Publication number: 20170319665
    Abstract: The present invention provides a technique for treating retinal epithelium and/or nerves. More specifically, the present invention is an agent for the treatment or prevention of retinal disease or the like and/or a disease, disorder, or ophthalmological state of the nerves, the agent including at least one factor selected from the group consisting of laminin and fragments thereof, wherein the problem is solved by also providing a technique characterized in that this agent is administered together with retinal pigment epithelial cells and/or nerve cells. Specifically, the present invention can include laminin 411 (?4?1?1), laminin 511 (?5?1?1), laminin 521 (?5?2?1), or fragments of these.
    Type: Application
    Filed: October 30, 2015
    Publication date: November 9, 2017
    Applicants: KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATION, THE DOSHISHA, SENJU PHARMACEUTICAL CO., LTD.
    Inventors: Noriko KOIZUMI, Naoki OKUMURA, Shigeru KINOSHITA
  • Publication number: 20170319693
    Abstract: The present invention provides a technique for treating the cornea. More specifically, the present invention is an agent for the treatment or prevention of a state of corneal endothelial disease, the agent including at least one factor selected from the group consisting of laminin and fragments thereof, wherein the problem is solved by also providing a technique characterized in that this agent is administered together with corneal endothelial cells. Specifically, the present invention can include laminin 511 (?5?1?1), laminin 521 (?5?2?1), or a fragment of these.
    Type: Application
    Filed: October 30, 2015
    Publication date: November 9, 2017
    Applicants: KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATION, THE DOSHISHA, SENJU PHARMACEUTICAL CO., LTD.
    Inventors: Noriko KOIZUMI, Naoki OKUMURA, Shigeru KINOSHITA
  • Publication number: 20170202910
    Abstract: The present invention relates to a differentiation marker and a differentiation controlling technique for an eye cell. More particularly, the present invention has attained an object of providing a differentiation marker for an eye cell among the aforementioned problems, by providing a marker for identifying a cell having a high proliferation ability among corneal endothelial cells and/or the differentiation ability of a corneal endothelial cell, the marker comprising GPR49/LGR5, as well as a detection agent or detection method for identifying a cell having a high proliferation ability among corneal endothelial cells and/or the differentiation ability of a corneal endothelial cell, comprising a substance binding to GPR49/LGR5. In addition, the present invention has attained an object of providing a differentiation controlling technique for an eye cell, by providing an agent for suppressing differentiation and/or promoting proliferation of an eye cell, comprising R-spondins.
    Type: Application
    Filed: February 27, 2017
    Publication date: July 20, 2017
    Inventors: Takahiro Nakamura, Noriko Koizumi, Naoki Okumura, Shigeru Kinoshita, Kana Tominaga, Satoshi Kawasaki