Patents Assigned to Tokyo Women's Medical University
  • Patent number: 11730460
    Abstract: The present invention relates to a therapeutic substance delivery device for delivering a therapeutic substance to a desired site in a bodily duct, characterized in that the therapeutic substance delivery device is provided with: a therapeutic substance loading portion; a connector which is connected to the therapeutic substance loading portion; and a supplying/discharging pipe connected to the connector; and in that the therapeutic substance loading portion includes a main body portion in which a recessed portion is formed, a resilient film, and a connecting pipe; the connector is provided with a joint main body, a flange portion fixed to the other end portion side of the joint main body, and a fixing nut through which the joint main body passes; the joint main body is provided with a tube fastening portion; and at least part of the inner wall of the fixing nut is provided with a thread.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: August 22, 2023
    Assignee: TOKYO WOMEN'S MEDICAL UNIVERSITY
    Inventors: Masanori Maeda, Nobuo Kanai, Yusuke Fujii, Masayuki Yamato, Makoto Abe
  • Publication number: 20230220005
    Abstract: S100A8-inhibiting peptides include (A) a peptide of 5 to 10 residues in length containing a fifth alanine (Ala) from an N-terminus in an amino acid sequence of SEQ ID NO: 1, or (B) a peptide consisting of an amino acid sequence of SEQ ID NO: 2.
    Type: Application
    Filed: May 26, 2021
    Publication date: July 13, 2023
    Applicants: TOKYO WOMEN'S MEDICAL UNIVERSITY, THE DOSHISHA
    Inventors: Yoshiro MARU, Atsuko DEGUCHI, Kiyotaka NISHIKAWA, Miho TAKAHASHI, Umeharu OHTO
  • Patent number: 11697794
    Abstract: The present invention provides a method for swiftly producing a layered cell sheet that is non-invasively obtained and is utilizable for transplantation, etc., the method including (1) a step of applying a centrifugal force to a first cell sheet on a temperature-responsive culture surface for a predetermined time in a temperature range from a lower critical solution temperature of the temperature-responsive culture surface to 45° C., (2) a step of further placing a second cell sheet on the first cell sheet, and (3) a step of applying a centrifugal force to the first cell sheet and the second cell sheet on the temperature-responsive culture surface for a predetermined time in the temperature range from the lower critical solution temperature to 45° C.; and also provides a layered cell sheet obtained by the method.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: July 11, 2023
    Assignees: NIHON KOHDEN CORPORATION, TOKYO WOMEN'S MEDICAL UNIVERSITY
    Inventors: Yuki Kagawa, Tatsuya Shimizu, Yuji Haraguchi, Hirotsugu Kubo
  • Publication number: 20220340864
    Abstract: The present invention provides a production method for a composition for cell culturing. This production method comprises: (1) a step for subjecting algae to an acid hydrolysis treatment and/or an alkali hydrolysis treatment; (2) a step for neutralizing the hydrolysis product obtained in the step (1) to obtain an algae extract; and (3) a step for mixing the algae extract with a medium for cell culturing, wherein the medium for cell culturing does not substantially contain L-glutamine.
    Type: Application
    Filed: October 1, 2020
    Publication date: October 27, 2022
    Applicant: TOKYO WOMEN'S MEDICAL UNIVERSITY
    Inventors: TATSUYA SHIMIZU, YUJI HARAGUCHI, TORU ASAHI, YUTA OKAMOTO
  • Patent number: 11458688
    Abstract: The present invention provides a tubular tissue preparation device provided with: a chamber for accommodating a tubular support body; a first support part for communicating the inside and the outside of the chamber and fixing the tubular support body; and a pressurizing/depressurizing means for controlling the pressure in an inner space of the chamber, wherein the first support part is for fixing a first opening section of the tubular support body, communicating a lumen of the tubular support body and the outside of the chamber, and separating the lumen of the tubular support body and the inner space of the chamber. Also, the present invention provides a tubular tissue preparation kit that includes said device and a device for transporting sheet-shaped tissue. In addition, the present invention provides a tubular tissue preparation method using said device.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: October 4, 2022
    Assignee: Tokyo Women's Medical University
    Inventors: Shogo Shimizu, Kazunori Sano, Hidekazu Sekine, Tatsuya Shimizu
  • Publication number: 20220291204
    Abstract: Disclosed is a method for acquiring information on spinal muscular atrophy, comprising acquiring a fluorescence image of a nucleated cell in a measurement sample, wherein the measurement sample is a sample prepared from a blood specimen obtained from a subject, an SMN protein in the nucleated cell is labeled with a first fluorescent dye, and a predetermined nuclear protein in the nucleated cell is labeled with a second fluorescent dye, acquiring an intracellular distance between a first bright spot corresponding to the first fluorescent dye and a second bright spot corresponding to the second fluorescent dye in the fluorescence image, and acquiring a value regarding a number of nucleated cells in which the intracellular distance is equal to or less than a first threshold value, wherein the value is an indicator of spinal muscular atrophy affection.
    Type: Application
    Filed: March 11, 2022
    Publication date: September 15, 2022
    Applicants: TOKYO WOMEN'S MEDICAL UNIVERSITY, SYSMEX CORPORATION
    Inventors: Kayoko SAITO, Noriko Otsuki, Takanori Maekawa
  • Publication number: 20220204608
    Abstract: Therapeutic agents and treatment methods for urologic cancers, particularly urologic cancers with reduced lysine (K)-specific demethylase 6A (KDM6A) function, the agents and methods being characterized by suppressing both IL-6 activity and CCR2/CCL2 activity, are provided.
    Type: Application
    Filed: April 16, 2020
    Publication date: June 30, 2022
    Applicants: HIROSHIMA UNIVERSITY, TOKYO WOMEN'S MEDICAL UNIVERSITY, CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Hiroaki Honda, Kohei Kobatake
  • Patent number: 11125670
    Abstract: A device for measuring a tension of a sheet-like tissue containing cardiomyocytes includes a first gel adapter holder having a frame member and a first gel holding member protruding toward a part of an inside face of the frame member for fixing one end of a film-like gel; and a second gel adapter holder having a second gel holding member for fixing the other end of the gel and a connection member connected to the second gel holding member. A kit includes the tension measuring device; a substrate having a pair of gel molding protruding members fitted along the inside face of the frame member; and a gel forming lid body having a face parallel to a gel contact face of the substrate so as to form an upper face of the gel. Further, a system for measuring the tension includes the tension measuring device.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: September 21, 2021
    Assignees: NIHON KOHDEN CORPORATION, TOKYO WOMEN'S MEDICAL UNIVERSITY
    Inventors: Hirotsugu Kubo, Takahiro Shioyama, Yuki Kagawa, Tatsuya Shimizu, Daisuke Sasaki
  • Publication number: 20210038768
    Abstract: A sheet for covering a wound includes a laminate of a serosal membrane and a cell sheet. The sheet for covering a wound has a proper thickness and strength. The sheet does not flow out from the wound site and can be fixed to the wound site by suture or anastomosis, if necessary. The sheet can be stably engrafted onto a wound region.
    Type: Application
    Filed: August 3, 2020
    Publication date: February 11, 2021
    Applicants: TOKYO WOMEN'S MEDICAL UNIVERSITY, CellSeed Inc.
    Inventors: Takeshi OHKI, Masayuki YAMATO, Tatsuya SHIMIZU, Masakazu YAMAMOTO
  • Publication number: 20210030837
    Abstract: The present invention provides an angiogenesis inhibitor containing as an active ingredient LYPD1 protein or a derivative thereof, a part thereof, or a vector expressing the same, or a cell expressing the same. The present invention also provides a screening method for angiogenesis inhibitors that enhance the expression of LYPD1 protein wherein the method includes (i) a step for treating a first cell by a test substance and culturing and (ii) a step for detecting the expression level of LYPD1 protein from the first cell and comparing with the level of LYPD1 protein of an untreated first cell.
    Type: Application
    Filed: January 24, 2019
    Publication date: February 4, 2021
    Applicant: TOKYO WOMEN'S MEDICAL UNIVERSITY
    Inventors: KATSUHISA MATSUURA, SHINAKO AOKI, SATORU SAKAMOTO, TATSUYA SHIMIZU
  • Patent number: 10883080
    Abstract: An object of the present invention is to obtain a thicker animal cell composition by a simple and less expensive method. Namely, an object of the present invention is to provide a method for culturing a thicker animal cell composition by eliminating the hypoxia associated with animal cell compositions, a method for producing an animal cell composition containing unicellular algae, and an animal cell composition. The present invention provides a method for culturing an animal cell composition in a culture medium in the presence of unicellular algae and under exposure to light. According to the method of the present invention, oxygen can be continuously supplied in the culture medium, cell damage is alleviated, and a thicker cell composition can be obtained in the absence of a capillary network.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: January 5, 2021
    Assignee: TOKYO WOMEN'S MEDICAL UNIVERSITY
    Inventors: Tatsuya Shimizu, Yuji Haraguchi, Yuki Kagawa, Katsuhisa Sakaguchi
  • Patent number: 10878958
    Abstract: One embodiment of the present disclosure is provided with: an information acquisition portion; an information storage portion; an event extraction section; a region setting section; and a display section. The information storage portion adds, to medical information, a time at which the information acquisition portion acquires the medical information from each of multiple medical devices used in a surgery, and a label for specifying the medical information. The display section causes a display device to display, as medical information, an image including a surgery site and at least one event extracted by the event extraction section in a time region set by the region setting section based on the time added to the medical information.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: December 29, 2020
    Assignees: TOKYO WOMEN'S MEDICAL UNIVERSITY, OPExPARK Inc.
    Inventors: Go Mukumoto, Hideki Okuda, Jun Okamoto, Yoshihiro Muragaki
  • Publication number: 20200368972
    Abstract: The present invention provides a tubular tissue preparation device provided with: a chamber for accommodating a tubular support body; a first support part for communicating the inside and the outside of the chamber and fixing the tubular support body; and a pressurizing/depressurizing means for controlling the pressure in an inner space of the chamber, wherein the first support part is for fixing a first opening section of the tubular support body, communicating a lumen of the tubular support body and the outside of the chamber, and separating the lumen of the tubular support body and the inner space of the chamber. Also, the present invention provides a tubular tissue preparation kit that includes said device and a device for transporting sheet-shaped tissue. In addition, the present invention provides a tubular tissue preparation method using said device.
    Type: Application
    Filed: October 19, 2018
    Publication date: November 26, 2020
    Applicant: TOKYO WOMEN'S MEDICAL UNIVERSITY
    Inventors: Shogo SHIMIZU, Kazunori SANO, Hidekazu SEKINE, Tatsuya SHIMIZU
  • Publication number: 20200352550
    Abstract: The present invention relates to a therapeutic substance delivery device for delivering a therapeutic substance to a desired site in a bodily duct, characterized in that the therapeutic substance delivery device is provided with: a therapeutic substance loading portion; a connector which is connected to the therapeutic substance loading portion; and a supplying/discharging pipe connected to the connector; and in that the therapeutic substance loading portion includes a main body portion in which a recessed portion is formed, a resilient film, and a connecting pipe; the connector is provided with a joint main body, a flange portion fixed to the other end portion side of the joint main body, and a fixing nut through which the joint main body passes; the joint main body is provided with a tube fastening portion; and at least part of the inner wall of the fixing nut is provided with a thread.
    Type: Application
    Filed: September 8, 2016
    Publication date: November 12, 2020
    Applicant: TOKYO WOMEN'S MEDICAL UNIVERSITY
    Inventors: Masanori Maeda, Nobuo Kanai, Yusuke Fujii, Masayuki Yamato, Makoto Abe
  • Publication number: 20200291350
    Abstract: The presently disclosed subject matter is to provide a hepatocyte structure, particularly, a hepatocyte structure that mimics nonalcoholic steatohepatitis (NASH). A hepatocyte construct including an aggregate containing hepatocytes and adherent cells that are non-hepatocytes, and wherein the hepatocytes include ballooned hepatocytes is provided. Further, a method for producing a hepatocyte construct, comprising: (i) forming an aggregate by aggregating a cell group comprising hepatocytes and adherent cells that are non-hepatocytes; and (ii) culturing the aggregate is provided.
    Type: Application
    Filed: July 3, 2019
    Publication date: September 17, 2020
    Applicants: NIHON KOHDEN CORPORATION, TOKYO WOMEN'S MEDICAL UNIVERSITY
    Inventors: Botao GAO, Yuki KAGAWA, Tetsuya OGAWA, Hirotsugu KUBO, Tatsuya SHIMIZU, Katsuhisa SAKAGUCHI
  • Patent number: 10717961
    Abstract: A cell culture system having a cell culture vessel, a composition controlling fluid storage vessel, a culture fluid composition controlling means having an inlet and an outlet for a cell culture fluid, an inlet-connected fluid feeding circuit from the cell culture vessel to the inlet of the culture fluid composition controlling means, an outlet-connected fluid feeding circuit from the cell culture vessel to the outlet of the culture fluid composition controlling means, a means which perfuses the cell culture fluid from the inlet-connected fluid feeding circuit to the outlet-connected fluid feeding circuit through the culture fluid composition controlling means, and a means which controls the amount of fluid in the cell culture vessel, in which compositions of the cell culture fluid in the cell culture vessel and compositions of the composition controlling fluid in the composition controlling fluid storage vessel can be controlled in a continuous manner.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: July 21, 2020
    Assignees: ASAHI KASEI KABUSHIKI KAISHA, TOKYO WOMEN'S MEDICAL UNIVERSITY
    Inventors: Ushio Iwamoto, Michi Sato, Kanako Konishi, Katsuhisa Matsuura, Tatsuya Shimizu, Teruo Okano
  • Patent number: 10711247
    Abstract: The present invention pertains to a method for culturing a cell population including pluripotent stem cells and differentiated cells derived from pluripotent stem cells at a temperature of 40.5° C. or higher and reducing the pluripotent stem cells included in the cell population. The present invention also pertains to a method for reducing pluripotent stem cells from a cell population including pluripotent stem cells and differentiated cells derived from pluripotent stem cells, wherein the method includes a step for activating the TRPV-1 expressed in the pluripotent stem cells included in the cell population. The present invention makes it possible to reduce the pluripotent stem cells remaining in an undifferentiated state when inducing the differentiation of a pluripotent stem cell population.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: July 14, 2020
    Assignee: TOKYO WOMEN'S MEDICAL UNIVERSITY
    Inventors: Katsuhisa Matsuura, Tatsuya Shimizu, Hiroyoshi Seta
  • Patent number: 10688133
    Abstract: The present invention provides a method of inhibiting progression of or preventing renal disorder, the method comprising applying a cell sheet composition for inhibiting progression of or preventing renal disorder to at least one part of the surface of a kidney, wherein the part of the surface is uncovered by a fibrous capsule of the kidney. The present invention also provides a cell sheet composition for inhibiting progression of or preventing renal disorder, the cell sheet composition comprising a cell that has a function of producing a hepatocyte growth factor (HGF). The present invention also provides a method of producing a cell sheet composition for inhibiting progression of or preventing renal disorder.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: June 23, 2020
    Assignee: TOKYO WOMEN'S MEDICAL UNIVERSITY
    Inventors: Masatoshi Oka, Sachiko Sekiya, Tatsuya Shimizu, Kosaku Nitta, Teruo Okano
  • Publication number: 20200140807
    Abstract: The present invention provides a method for swiftly producing a layered cell sheet that is non-invasively obtained and is utilizable for transplantation, etc., the method including (1) a step of applying a centrifugal force to a first cell sheet on a temperature-responsive culture surface for a predetermined time in a temperature range from a lower critical solution temperature of the temperature-responsive culture surface to 45° C., (2) a step of further placing a second cell sheet on the first cell sheet, and (3) a step of applying a centrifugal force to the first cell sheet and the second cell sheet on the temperature-responsive culture surface for a predetermined time in the temperature range from the lower critical solution temperature to 45° C.; and also provides a layered cell sheet obtained by the method.
    Type: Application
    Filed: June 28, 2018
    Publication date: May 7, 2020
    Applicants: NIHON KOHDEN CORPORATION, TOKYO WOMEN'S MEDICAL UNIVERSITY
    Inventors: Yuki KAGAWA, Tatsuya SHIMIZU, Yuji HARAGUCHI, Hirotsugu KUBO
  • Publication number: 20200030409
    Abstract: Provided is a LYPD1 inhibitor for promoting vascular endothelial network formation in a biological tissue. Also provided is a medicinal composition, said medicinal composition comprising a LYPD1 inhibitor as an active ingredient, for treating and/or preventing neoangiogenic disorders. Also provided is a method which comprises: (a1) a step for providing a cell population containing first cells expressing LYPD1 and vascular endothelial cells; (a2) a step for treating the cell population obtained in step (a1) with a LYPD1 inhibitor; and (a3) a step for culturing the cell population obtained in step (a2).
    Type: Application
    Filed: March 6, 2018
    Publication date: January 30, 2020
    Applicant: TOKYO WOMEN'S MEDICAL UNIVERSITY
    Inventors: Katsuhisa Matsuura, Tatsuya Shimizu, Shinako Aoki, Satoru Sakamoto