Patents Assigned to Saitama Medical University
  • Patent number: 11859006
    Abstract: This application relates to a pharmaceutical composition for use in a method for treating and/or preventing a patient having ectopic ossification and/or brain tumor, wherein the patient has an active mutation in ALK2 protein which is responsible for ectopic ossification or brain tumor; an amino acid residue at position 330 of ALK2 is proline; and an active ingredient of this composition is an anti-ALK2 antibody or an antigen-binding fragment thereof comprising a property of binding to ALK2, a property of cross-linking ALK2, and a property of inhibiting BMP signal transduction.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: January 2, 2024
    Assignees: Saitama Medical University, Daiichi Sankyo Company, Limited
    Inventors: Takenobu Katagiri, Sho Tsukamoto, Keigo Kumagai, Shinnosuke Tsuji
  • Patent number: 11447554
    Abstract: This application provides: an antibody which specifically binds to an ALK2 protein and has an activity of inhibiting BMP signal transduction mediated by ALK2; a method for producing the antibody; and a pharmaceutical composition comprising the antibody, for treating and/or preventing ectopic ossification and/or bone dysplasia, anemia, or diffuse intrinsic pontine glioma (DIPG).
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: September 20, 2022
    Assignees: Saitama Medical University, Daiichi Sankyo Company, Limited
    Inventors: Takenobu Katagiri, Kenji Osawa, Sho Tsukamoto, Shinnosuke Tsuji, Yoshirou Kawaguchi, Kensuke Nakamura
  • Publication number: 20220267453
    Abstract: This application provides: an antibody or an antigen-binding fragment thereof which can be used not only as a therapeutic drug but as a tool of immunological and immunohistological analysis such as immunostaining or Western blot, specifically recognizes an extracellular region polypeptide of human, mouse and rat ALK2, and inhibits BMP signal transduction, and an antibody or an antigen-binding fragment thereof which has a property of specifically binding to an extracellular region of ALK2 to form an ALK2 homodimer and a property of inhibiting the formation of an ALK2-type II receptor heterodimer, and inhibits the activation of ALK2 kinase, or inhibits BMP signal transduction; and a method for inhibiting the activation of ALK2 kinase or a method for inhibiting BMP signal transduction using the antibody or the antigen-binding fragment thereof.
    Type: Application
    Filed: July 22, 2020
    Publication date: August 25, 2022
    Applicants: Saitama Medical University, Daiichi Sankyo Company, Limited
    Inventors: Takenobu KATAGIRI, Sho TSUKAMOTO, Mai KURATANI
  • Patent number: 11312776
    Abstract: This application provides: an antibody which specifically binds to an ALK2 protein and has an activity of inhibiting BMP signal transduction mediated by ALK2; a method for producing the antibody; and a pharmaceutical composition comprising the antibody, for treating and/or preventing ectopic ossification and/or bone dysplasia, anemia, or diffuse intrinsic pontine glioma (DIPG).
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: April 26, 2022
    Assignees: Saitama Medical University, Daiichi Sankyo Company, Limited
    Inventors: Takenobu Katagiri, Kenji Osawa, Sho Tsukamoto, Shinnosuke Tsuji, Yoshirou Kawaguchi, Kensuke Nakamura
  • Patent number: 11293924
    Abstract: The present invention relates to the prediction of responsiveness to cancer immunotherapy of a subject based on the T-cell composition of the subject, and a therapeutic method using cancer immunotherapy based on the prediction. The present invention also provides a method for improving or maintaining responsiveness to cancer immunotherapy of a subject. Responsiveness to cancer immunotherapy is predict by determining a relative value of a CD4+ T-cell subpopulation, dendritic cell subpopulation, and/or CD8+ T-cell subpopulation correlated with a dendritic cell stimulation in an anti-tumor immune response in a sample derived from a subject. A composition for treating or preventing cancer comprising cells such as CD62LlowCD4+ T-cells is also provided.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: April 5, 2022
    Assignee: Saitama Medical University
    Inventor: Hiroshi Kagamu
  • Publication number: 20220041738
    Abstract: This application provides: an antibody which specifically binds to an ALK2 protein and has an activity of inhibiting BMP signal transduction mediated by ALK2; a method for producing the antibody; and a pharmaceutical composition comprising the antibody, for treating and/or preventing ectopic ossification and/or bone dysplasia, anemia, or diffuse intrinsic pontine glioma (DIPG).
    Type: Application
    Filed: October 26, 2021
    Publication date: February 10, 2022
    Applicants: Saitama Medical University, Daiichi Sankyo Company, Limited
    Inventors: Takenobu KATAGIRI, Kenji OSAWA, Sho TSUKAMOTO, Shinnosuke TSUJI, Yoshirou KAWAGUCHI, Kensuke NAKAMURA
  • Patent number: 10994007
    Abstract: Disclosed is an immunity inducer. The immunity inducer comprises virus like particles; the virus like particles comprise a virus-derived outer coat protein and an antigen-bound protein comprising an exogenous antigen; the outer coat protein constitutes an outer coat of the virus like particles, and the antigen-bound protein is comprised in the outer coat; and the virus like particles induce an immune effect of a living body on the antigen.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: May 4, 2021
    Assignees: Saitama Medical University, SYSMEX CORPORATION
    Inventors: Hiroshi Handa, Masaaki Kawano, Masahiko Kato
  • Publication number: 20210009709
    Abstract: This application relates to a pharmaceutical composition for use in a method for treating and/or preventing a patient having ectopic ossification and/or brain tumor, wherein the patient has an active mutation in ALK2 protein which is responsible for ectopic ossification or brain tumor; an amino acid residue at position 330 of ALK2 is proline; and an active ingredient of this composition is an anti-ALK2 antibody or an antigen-binding fragment thereof comprising a property of binding to ALK2, a property of cross-linking ALK2, and a property of inhibiting BMP signal transduction.
    Type: Application
    Filed: March 4, 2019
    Publication date: January 14, 2021
    Applicants: SAITAMA MEDICAL UNIVERSITY, DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Takenobu KATAGIRI, Sho TSUKAMOTO, Keigo KUMAGAI, Shinnosuke TSUJI
  • Patent number: 10851342
    Abstract: The present invention allows a TET1 protein to be more stably expressed in human pluripotent stem cells than in the past by, inter alia, substituting the second amino acid from the amino terminal of a TET1 protein with a different amino acid. Furthermore, upon differentiation of said pluripotent stem cells, it is possible to quickly eliminate the expression of, inter alia, NANOG, which is an inhibitor of differentiation and promote the expression of factors related to differentiation by introducing a variant TET1 protein to a pluripotent stem cell. The present invention provides a method for manufacturing pluripotent stem cells with increased differentiation potential, and a substance that is useful to said method.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: December 1, 2020
    Assignee: Saitama Medical University
    Inventors: Hidemasa Kato, Yosuke Moriyama, Keiko Hiraki, Akihiko Okuda
  • Patent number: 10835551
    Abstract: A double-stranded nucleic acid molecule for suppressing expression of non-coding RNA, the double-stranded nucleic acid molecule including: (a) a sense strand containing a nucleotide sequence corresponding to a target sequence set forth in any one of SEQ ID NOs: 26 to 31; and (b) an antisense strand containing a nucleotide sequence which is complementary to the sense strand in the (a) to form a double strand with the sense strand, wherein the non-coding RNA contains a base sequence set forth in any one of SEQ ID NOs: 2 to 4, a part of the base sequence, or both of the base sequence and the part.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: November 17, 2020
    Assignee: SAITAMA MEDICAL UNIVERSITY
    Inventors: Satoshi Inoue, Kazuhiro Ikeda, Kuniko Inoue
  • Patent number: 10809200
    Abstract: Provided is a test object visualizing device, including: light irradiating unit configured to make wavelength of at least any one of pump light and Stokes light generated on the same optical path variable per test position of test object, and irradiate test object with pump light and Stokes light; molecule distribution image generating unit configured to detect anti-Stokes light emitted from test object according to wavelength difference between pump light and Stokes light, and generate a molecule distribution image based on anti-Stokes light; tomographic image generating unit configured to detect at least any one of reflected light from test object when irradiated with pump light and reflected light from test object when irradiated with Stokes light, and generate a tomographic image of test object based on the reflected light detected; and image display unit configured to display at least any one of molecule distribution image and tomographic image generated.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: October 20, 2020
    Assignee: SAITAMA MEDICAL UNIVERSITY
    Inventor: Masahiro Toida
  • Publication number: 20200121710
    Abstract: A double-stranded nucleic acid molecule for suppressing expression of non-coding RNA, the double-stranded nucleic acid molecule including: (a) a sense strand containing a nucleotide sequence corresponding to a target sequence set forth in any one of SEQ ID NOs: 26 to 31; and (b) an antisense strand containing a nucleotide sequence which is complementary to the sense strand in the (a) to form a double strand with the sense strand, wherein the non-coding RNA contains a base sequence set forth in any one of SEQ ID NOs: 2 to 4, a part of the base sequence, or both of the base sequence and the part.
    Type: Application
    Filed: January 2, 2020
    Publication date: April 23, 2020
    Applicant: Saitama Medical University
    Inventors: Satoshi INOUE, Kazuhiro IKEDA, Kuniko INOUE
  • Patent number: 10561679
    Abstract: A double-stranded nucleic acid molecule for suppressing expression of non-coding RNA, the double-stranded nucleic acid molecule including: (a) a sense strand containing a nucleotide sequence corresponding to a target sequence set forth in any one of SEQ ID NOs: 5 to 11 and 26 to 31; and (b) an antisense strand containing a nucleotide sequence which is complementary to the sense strand in the (a) to form a double strand with the sense strand, wherein the non-coding RNA contains a base sequence set forth in any one of SEQ ID NOs: 1 to 4, a part of the base sequence, or both of the base sequence and the part.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: February 18, 2020
    Assignee: SAITAMA MEDICAL UNIVERSITY
    Inventors: Satoshi Inoue, Kazuhiro Ikeda, Kuniko Inoue
  • Publication number: 20200002427
    Abstract: This application provides: an antibody which specifically binds to an ALK2 protein and has an activity of inhibiting BMP signal transduction mediated by ALK2; a method for producing the antibody; and a pharmaceutical composition comprising the antibody, for treating and/or preventing ectopic ossification and/or bone dysplasia, anemia, or diffuse intrinsic pontine glioma (DIPG).
    Type: Application
    Filed: August 19, 2019
    Publication date: January 2, 2020
    Applicants: SAITAMA MEDICAL UNIVERSITY, DAIICHI SANKYO COMPANY, LIMITED
    Inventors: TAKENOBU KATAGIRI, KENJI OSAWA, SHO TSUKAMOTO, SHINNOSUKE TSUJI, YOSHIROU KAWAGUCHI, KENSUKE NAKAMURA
  • Patent number: 10428148
    Abstract: This application provides: an antibody which specifically binds to an ALK2 protein and has an activity of inhibiting BMP signal transduction mediated by ALK2; a method for producing the antibody; and a pharmaceutical composition comprising the antibody, for treating and/or preventing ectopic ossification and/or bone dysplasia, anemia, or diffuse intrinsic pontine glioma (DIPG).
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: October 1, 2019
    Assignees: Saitama Medical University, Daiichi Sankyo Company, limited
    Inventors: Takenobu Katagiri, Kenji Osawa, Sho Tsukamoto, Shinnosuke Tsuji, Yoshirou Kawaguchi, Kensuke Nakamura
  • Patent number: 10413559
    Abstract: It is an object of the present invention to provide a novel therapeutic agent for demyelinating disease which has an action to suppress demyelination of nerve axons. According to the present invention, a therapeutic agent for demyelinating disease which comprises cyclic phosphatidic acids, carba-cyclic phosphatidic acids, thia-cyclic phosphatidic acids, or a salt thereof is provided.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: September 17, 2019
    Assignees: OCHANOMIZU UNIVERSITY, SAITAMA MEDICAL UNIVERSITY
    Inventors: Kimiko Murofushi, Mari Gotoh, Kei Maruyama, Keisuke Yoshikawa, Shinji Yamamoto
  • Patent number: 10370730
    Abstract: A method for detecting a mutation in an amino acid at position 93 of a hepatitis C virus NS5A protein, the method including: synthesizing cDNA using, as a template, hepatitis C virus RNA in a sample; and performing a real-time PCR with a cycling probe method using, as a template, the cDNA; wherein a primer set used in the real-time PCR is a certain primer set; and wherein probes used in the real-time PCR include certain probes.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: August 6, 2019
    Assignee: SAITAMA MEDICAL UNIVERSITY
    Inventors: Satoshi Mochida, Yoshihito Uchida, Jun-ichi Kouyama, Kayoko Naiki
  • Patent number: 10369218
    Abstract: Disclosed is an immunostimulator containing virus-like particles, in which the virus-like particles contain an outer coat protein containing an amino acid sequence selected from the group consisting of SEQ ID No. 1, SEQ ID No. 26, SEQ ID No. 33, SEQ ID No. 35, SEQ ID No. 37, SEQ ID No. 39, SEQ ID No. 41, SEQ ID No. 43 and SEQ ID No. 45; the outer coat protein constitutes an outer coat of the virus-like particles; and the virus-like particles do not substantially contain a genome DNA of SV40.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: August 6, 2019
    Assignees: Saitama Medical University, SYSMEX CORPORATION
    Inventors: Hiroshi Handa, Masaaki Kawano, Masahiko Kato
  • Publication number: 20190189260
    Abstract: A method of evaluating a therapeutic effect of a drug in a cancer patient, comprising a comparison step of comparing a first absolute hemoglobin concentration in a sternum portion of the cancer patient before administration of the drug and a second absolute hemoglobin concentration in the sternum portion of the cancer patient after administration of the drug; and an evaluation step of evaluating the therapeutic effect of the drug in the cancer patient based on the result of comparison performed through the comparison step.
    Type: Application
    Filed: August 8, 2017
    Publication date: June 20, 2019
    Applicants: SAITAMA MEDICAL UNIVERSITY, HAMAMATSU PHOTONICS K.K.
    Inventors: Shigeto UEDA, Toshiaki SAEKI, Yukio UEDA
  • Publication number: 20190137402
    Abstract: Provided is a test object visualizing device, including: light irradiating unit configured to make wavelength of at least any one of pump light and Stokes light generated on the same optical path variable per test position of test object, and irradiate test object with pump light and Stokes light; molecule distribution image generating unit configured to detect anti-Stokes light emitted from test object according to wavelength difference between pump light and Stokes light, and generate a molecule distribution image based on anti-Stokes light; tomographic image generating unit configured to detect at least any one of reflected light from test object when irradiated with pump light and reflected light from test object when irradiated with Stokes light, and generate a tomographic image of test object based on the reflected light detected; and image display unit configured to display at least any one of molecule distribution image and tomographic image generated.
    Type: Application
    Filed: June 16, 2017
    Publication date: May 9, 2019
    Applicant: Saitama Medical University
    Inventor: Masahiro TOIDA