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).
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Publication number: 20230340580Abstract: 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: ApplicationFiled: February 24, 2021Publication date: October 26, 2023Inventors: Naohiko Koshikawa, Motoharu Seiki, Daisuke Hoshino
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Patent number: 11422126Abstract: 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: GrantFiled: August 14, 2018Date of Patent: August 23, 2022Assignee: THE UNIVERSITY OF TOKYOInventors: Motoharu Seiki, Naohiko Koshikawa
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Patent number: 11340229Abstract: 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: GrantFiled: April 18, 2019Date of Patent: May 24, 2022Assignees: Abbott Japan LLC, The University of TokyoInventors: Toru Yoshimura, Eisaku Yoshida, Naohiko Koshikawa, Motoharu Seiki
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Publication number: 20190242899Abstract: 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: ApplicationFiled: April 18, 2019Publication date: August 8, 2019Inventors: Toru Yoshimura, Eisaku Yoshida, Naohiko Koshikawa, Motoharu Seiki
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Publication number: 20190064149Abstract: 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: ApplicationFiled: August 14, 2018Publication date: February 28, 2019Inventors: MOTOHARU SEIKI, NAOHIKO KOSHIKAWA
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Publication number: 20170089905Abstract: 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: ApplicationFiled: September 27, 2016Publication date: March 30, 2017Inventors: Toru Yoshimura, Eisaku Yoshida, Naohiko Koshikawa, Motoharu Seiki
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Publication number: 20160103121Abstract: 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: ApplicationFiled: February 13, 2014Publication date: April 14, 2016Inventors: Motoharu SEIKI, Naohiko KOSHIKAWA
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Publication number: 20140045196Abstract: 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: ApplicationFiled: August 8, 2013Publication date: February 13, 2014Applicants: University of Tokyo, Abbott Japan Co., LtdInventors: Noahiko Koshikawa, Masatoshi Nakagawa, Eisaku Yoshida, Toru Yoshimura, Motoharu Seiki
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Publication number: 20070112176Abstract: 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: ApplicationFiled: April 2, 2004Publication date: May 17, 2007Applicant: DAIICHI PHARMACEUTICAL CO., LTD.Inventors: Motoharu Seiki, Ikuo Yana, Takanori Aoki, Junko Yasuda, Hiroshi Kikuchi, Emi Ishida
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Patent number: 6825024Abstract: 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: GrantFiled: October 13, 2000Date of Patent: November 30, 2004Assignee: Fuji Yakuhin Kogyo Kabushiki KaishaInventors: Motoharu Seiki, Hiroshi Sato, Akira Shinagawa
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Patent number: 6780412Abstract: 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: GrantFiled: December 12, 2000Date of Patent: August 24, 2004Assignee: Fuji Yakuhin Kogyo Kabushiki KaishaInventors: Motoharu Seiki, Hiroshi Sato, Akira Shinagawa
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Publication number: 20040120954Abstract: 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: ApplicationFiled: September 15, 2003Publication date: June 24, 2004Inventors: Motoharu Seiki, Ken-ichi Obata
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Publication number: 20010016333Abstract: 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: ApplicationFiled: December 12, 2000Publication date: August 23, 2001Inventors: Motoharu Seiki, Hiroshi Sato, Akira Shinagawa
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Patent number: 6191255Abstract: 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: GrantFiled: February 20, 1998Date of Patent: February 20, 2001Assignee: Fuji Yakuhin Kogyo Kabushiki KaishaInventors: Motoharu Seiki, Hiroshi Sato, Akira Shinagawa
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Patent number: 6184022Abstract: 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: GrantFiled: June 7, 1995Date of Patent: February 6, 2001Assignee: Fuji Yakuhin Kogyo Kabushiki KaishaInventors: Motoharu Seiki, Hiroshi Sato, Akira Shinagawa