Patents by Inventor Motoharu Seiki

Motoharu Seiki 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: 20230340580
    Abstract: The present invention relates to a splicing variant derived from exon 12 of laminin ?2 (LAMC2) gene and intron 1 of the antisense strand of NR6A1 gene.
    Type: Application
    Filed: February 24, 2021
    Publication date: October 26, 2023
    Inventors: Naohiko Koshikawa, Motoharu Seiki, Daisuke Hoshino
  • Patent number: 11422126
    Abstract: An object of the present invention is to elucidate a molecular mechanism of ligand-independent activation of EphA2 in cancer cells, make EphA2 a more useful target in the treatment of cancer, and provide a cancer testing method and the like using the mechanism. The present invention provides, for example, a cancer testing method including a step of measuring an amount of an EphA2 protein fragment having a molecular weight of from 30 kDa to 80 kDa in a sample derived from a subject.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: August 23, 2022
    Assignee: THE UNIVERSITY OF TOKYO
    Inventors: Motoharu Seiki, Naohiko Koshikawa
  • Patent number: 11340229
    Abstract: Disclosed herein are biomarkers for hepatocellular carcinoma and pancreatic cancer. The biomarkers may be laminin gamma 2 monomer, PIVKA-II, AFP, CEA, CA19-9, or combinations thereof. Also disclosed herein are methods of diagnosing, prognosing, classifying risk, and monitoring progression of hepatocellular carcinoma or pancreatic cancer by the detecting the level of laminin gamma 2 monomer, PIVKA-II, AFP, CEA, CA19-9, or combinations thereof.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: May 24, 2022
    Assignees: Abbott Japan LLC, The University of Tokyo
    Inventors: Toru Yoshimura, Eisaku Yoshida, Naohiko Koshikawa, Motoharu Seiki
  • Publication number: 20190242899
    Abstract: Disclosed herein are biomarkers for hepatocellular carcinoma and pancreatic cancer. The biomarkers may be laminin gamma 2 monomer, PIVKA-II, AFP, CEA, CA19-9, or combinations thereof. Also disclosed herein are methods of diagnosing, prognosing, classifying risk, and monitoring progression of hepatocellular carcinoma or pancreatic cancer by the detecting the level of laminin gamma 2 monomer, PIVKA-II, AFP, CEA, CA19-9, or combinations thereof.
    Type: Application
    Filed: April 18, 2019
    Publication date: August 8, 2019
    Inventors: Toru Yoshimura, Eisaku Yoshida, Naohiko Koshikawa, Motoharu Seiki
  • Publication number: 20190064149
    Abstract: An object of the present invention is to elucidate a molecular mechanism of ligand-independent activation of EphA2 in cancer cells, make EphA2 a more useful target in the treatment of cancer, and provide a cancer testing method and the like using the mechanism. The present invention provides, for example, a cancer testing method including a step of measuring an amount of an EphA2 protein fragment having a molecular weight of from 30 kDa to 80 kDa in a sample derived from a subject.
    Type: Application
    Filed: August 14, 2018
    Publication date: February 28, 2019
    Inventors: MOTOHARU SEIKI, NAOHIKO KOSHIKAWA
  • Publication number: 20170089905
    Abstract: Disclosed herein are biomarkers for hepatocellular carcinoma and pancreatic cancer. The biomarkers may be laminin gamma 2 monomer, PIVKA-II, AFP, CEA, CA19-9, or combinations thereof. Also disclosed herein are methods of diagnosing, prognosing, classifying risk, and monitoring progression of hepatocellular carcinoma or pancreatic cancer by the detecting the level of laminin gamma 2 monomer, PIVKA-II, AFP, CEA, CA19-9, or combinations thereof.
    Type: Application
    Filed: September 27, 2016
    Publication date: March 30, 2017
    Inventors: Toru Yoshimura, Eisaku Yoshida, Naohiko Koshikawa, Motoharu Seiki
  • Publication number: 20160103121
    Abstract: An object of the present invention is to elucidate a molecular mechanism of ligand-independent activation of EphA2 in cancer cells, make EphA2 a more useful target in the treatment of cancer, and provide a cancer testing method and the like using the mechanism. The present invention provides, for example, a cancer testing method including a step of measuring an amount of an EphA2 protein fragment having a molecular weight of from 30 kDa to 80 kDa in a sample derived from a subject.
    Type: Application
    Filed: February 13, 2014
    Publication date: April 14, 2016
    Inventors: Motoharu SEIKI, Naohiko KOSHIKAWA
  • Publication number: 20140045196
    Abstract: Provided are methods of diagnosing cancer in a patient by detecting the presence and/or amount of a biomarker of cancer in a sample from the patient. The methods and biomarkers may be used to develop an accurate prognosis for a patient having cancer or suspected of having cancer, or to accurately diagnose a patient having, or suspected of having cancer. The methods and biomarkers may be used to identify and/or classify a patient as a candidate for a cancer therapy.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 13, 2014
    Applicants: University of Tokyo, Abbott Japan Co., Ltd
    Inventors: Noahiko Koshikawa, Masatoshi Nakagawa, Eisaku Yoshida, Toru Yoshimura, Motoharu Seiki
  • Publication number: 20070112176
    Abstract: A lipid membrane structure containing an anti-membrane-type matrix metalloproteinase monoclonal antibody such as an anti-MT1-MMP monoclonal antibody as a component of the lipid membrane structure. Said structure can be utilized as a drug delivery system for efficiently delivering a medicinally active ingredient and/or a gene to tumor cells, neoplastic vessel and the like in which a membrane-type matrix metalloproteinase (MT-MMP) is expressed.
    Type: Application
    Filed: April 2, 2004
    Publication date: May 17, 2007
    Applicant: DAIICHI PHARMACEUTICAL CO., LTD.
    Inventors: Motoharu Seiki, Ikuo Yana, Takanori Aoki, Junko Yasuda, Hiroshi Kikuchi, Emi Ishida
  • Patent number: 6825024
    Abstract: A novel metalloproteinase, DNA encoding therefor, a plasmid carrying said DNA sequence and a host cell harbouring said plasmid, and monoclonal antibodies peculiarly recognizing said protein. Useful in applications pertaining to diagnosis of the presence of tumour cells, the degree of cancer malignancy, and other medical and physiological fields.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: November 30, 2004
    Assignee: Fuji Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Motoharu Seiki, Hiroshi Sato, Akira Shinagawa
  • Patent number: 6780412
    Abstract: A novel protein which is useful as diagnostic means for the studies relating to the diagnosis and treatment of cancer (detection of cancer cells, estimation of the malignity, etc.) and in other medicinal and physiological purposes; a gene encoding the same; and an antibody, in particular, a monoclonal antibody specific to the protein. MT-MMP-3, which is a pro MMP-2 activator having the ability to activate pro MMP-2 which is under expression specifically on the surface layer of a human cancer cell and falling within the category of MMP but being different from MT-MMP-1; a DNA containing the base sequence encoding the same; host cells transformed by the DNA; a process for producing a matrix metalloproteinase protein by using the host cells; a monoclonal antibody binding specifically to the matrix metalloproteinase protein; and use of the protein and antibody.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: August 24, 2004
    Assignee: Fuji Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Motoharu Seiki, Hiroshi Sato, Akira Shinagawa
  • Publication number: 20040120954
    Abstract: It has been considered that an activation of proMMP-2 induced by MT1-MMP is one of the important steps for invasion of tumor cells such as cancers, but its detailed mechanism for an expression of activation has been unknown. Thus, it has been required that methods for preventing/treating various diseases are developed by elucidating the mechanism of activation expression of proMMP-2 induced by MT1-MMP and elucidating various actions potentially involving MT1-MMP in addition to invasion and metastasis of cancers. A formation of a complex formed of multiple MT1-MMP, particularly a homodimer formation of MT1-MMP is crucial for the activation of proMMP-2 induced by MT1-MMP, and the homodimer formation is based on functions of the PEX domain of MT1-MMP. Utilizing such findings, the homodimer formation of MT1-MMP is inhibited and the activation of proMMP-2 is inhibited leading to developing methods to control invasion/metastasis of cancers.
    Type: Application
    Filed: September 15, 2003
    Publication date: June 24, 2004
    Inventors: Motoharu Seiki, Ken-ichi Obata
  • Publication number: 20010016333
    Abstract: A novel protein which is useful as diagnostic means for the studies relating to the diagnosis and treatment of cancer (detection of cancer cells, estimation of the malignity, etc.) and in other medicinal and physiological purposes; a gene encoding the same; and an antibody, in particular, a monoclonal antibody specific to the protein. MT-MMP-3, which is a pro MMP-2 activator having the ability to activate pro MMP-2 which is under expression specifically on the surface layer of a human cancer cell and falling within the category of MMP but being different from MT-MMP-1; a DNA containing the base sequence encoding the same; host cells transformed by the DNA; a process for producing a matrix metalloproteinase protein by using the host cells; a monoclonal antibody binding specifically to the matrix metalloproteinase protein; and use of the protein and antibody.
    Type: Application
    Filed: December 12, 2000
    Publication date: August 23, 2001
    Inventors: Motoharu Seiki, Hiroshi Sato, Akira Shinagawa
  • Patent number: 6191255
    Abstract: A novel protein which is useful as a diagnostic means for studies relating to the diagnosis and treatment of cancer (detection of cancer cells, estimation of the malignity, etc.) and for other medicinal and physiological purposes; a gene encoding the same; and an antibody, in particular, a monoclonal antibody specific to the protein. MT-MMP-3, which is a pro MMP-2 activator having the ability to activate pro MMP-2 which is under expression specifically on the surface layer of a human cancer cell and falling within the category of MMP but being different from MT-MMP-1; a DNA containing the base sequence encoding the same; host cells transformed by the DNA; a process for producing a matrix metalloproteinase protein by using the host cells; a monoclonal antibody binding specifically to the matrix metalloproteinase protein; and use of the protein and antibody.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: February 20, 2001
    Assignee: Fuji Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Motoharu Seiki, Hiroshi Sato, Akira Shinagawa
  • Patent number: 6184022
    Abstract: A novel metalloproteinase, DNA encoding therefor, a plasmid carrying said DNA sequence and a host cell harbouring said plasmid, and monoclonal antibodies peculiarly recognizing said protein. Useful in applications pertaining to diagnosis of the presence of tumour cells, the degree of cancer malignancy, and other medical and physiological fields.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 6, 2001
    Assignee: Fuji Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Motoharu Seiki, Hiroshi Sato, Akira Shinagawa