Patents by Inventor Shinji Kagaya
Shinji Kagaya 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: 20220031813Abstract: The present invention has an object of providing a novel drug inhibiting formation of leukocyte extracellular traps. The present invention provides a lactoferrin-containing inhibitor of formation of leukocyte extracellular traps, and a lactoferrin-containing composition for treating a disease associated with the formation of the leukocyte extracellular traps.Type: ApplicationFiled: August 16, 2021Publication date: February 3, 2022Inventor: Shinji Kagaya
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Patent number: 11041014Abstract: The present invention provides a lactoferrin fusion protein having high clinical utility and a production method therefor. The present invention further provides: a lactoferrin fusion protein that retains the biological activity of native lactoferrin while having a significantly extended in vivo life span, and that has more clinical utility than native lactoferrin and recombinant lactoferrin; and a production method therefor. With this fusion protein or a variant thereof, the ability of lactoferrin to bind iron is retained, and therefore at least the important biological activity of lactoferrin that is based on the iron-binding ability is retained. Additionally, this fusion protein or variant thereof has bioavailability and resistance to protease, and thus can exhibit biological activity in vivo over a long period. Furthermore, this fusion protein is not easily broken down by pepsin in the stomach.Type: GrantFiled: October 27, 2017Date of Patent: June 22, 2021Assignee: S & K Biopharma, Inc.Inventors: Atsushi Sato, Shinji Kagaya
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Publication number: 20210169991Abstract: The purpose of the present invention is to develop a medicine for diseases related to glycosaminoglycan functions with less side effects. Provided is a glycosaminoglycan inhibitor or promoter that comprises lactoferrin or a derivative thereof.Type: ApplicationFiled: December 17, 2020Publication date: June 10, 2021Inventors: Masao NAKAMURA, Atsushi SATO, Shinji KAGAYA
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Patent number: 10562959Abstract: The present invention aims to provide a lactoferrin fusion protein, which is configured to retain the biological activities of natural lactoferrin, to have a significantly prolonged in vivo lifetime, and to be more clinically useful than natural and gene recombinant lactoferrin, as well as a method for preparation thereof, etc. The present invention provides a fusion protein formed with a protein or peptide comprising an FcRn-binding region and lactoferrin or a biologically active fragment or peptide of lactoferrin, which is represented by: (LF-s-Y)n or(Y-s-LF)n [wherein LF represents lactoferrin or a biologically active fragment or peptide of lactoferrin, Y represents the protein or peptide comprising an FcRn-binding region, s represents any amino acid sequence of 0 to 10 residues, and n represents an integer of 1 to 10], or a variant thereof.Type: GrantFiled: September 29, 2017Date of Patent: February 18, 2020Assignee: NRL PHARMA, INC.Inventors: Atsushi Sato, Shinji Kagaya
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Publication number: 20190309049Abstract: The present invention provides a lactoferrin fusion protein having high clinical utility and a production method therefor. The present invention further provides: a lactoferrin fusion protein that retains the biological activity of native lactoferrin while having a significantly extended in vivo life span, and that has more clinical utility than native lactoferrin and recombinant lactoferrin; and a production method therefor. With this fusion protein or a variant thereof, the ability of lactoferrin to bind iron is retained, and therefore at least the important biological activity of lactoferrin that is based on the iron-binding ability is retained. Additionally, this fusion protein or variant thereof has bioavailability and resistance to protease, and thus can exhibit biological activity in vivo over a long period. Furthermore, this fusion protein is not easily broken down by pepsin in the stomach.Type: ApplicationFiled: October 27, 2017Publication date: October 10, 2019Applicant: NRL PHARMA, INC.Inventors: Atsushi SATO, Shinji KAGAYA
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Publication number: 20180072794Abstract: The present invention aims to provide a lactoferrin fusion protein, which is configured to retain the biological activities of natural lactoferrin, to have a significantly prolonged in vivo lifetime, and to be more clinically useful than natural and gene recombinant lactoferrin, as well as a method for preparation thereof, etc. The present invention provides a fusion protein formed with a protein or peptide comprising an FcRn-binding region and lactoferrin or a biologically active fragment or peptide of lactoferrin, which is represented by: (LF-s-Y)n or (Y-s-LF)n [wherein LF represents lactoferrin or a biologically active fragment or peptide of lactoferrin, Y represents the protein or peptide comprising an FcRn-binding region, s represents any amino acid sequence of 0 to 10 residues, and n represents an integer of 1 to 10], or a variant thereof.Type: ApplicationFiled: September 29, 2017Publication date: March 15, 2018Applicant: NRL PHARMA, INC.Inventors: Atsushi SATO, Shinji KAGAYA
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Patent number: 9809641Abstract: The present invention aims to provide a lactoferrin fusion protein, which is configured to retain the biological activities of natural lactoferrin, to have a significantly prolonged in vivo lifetime, and to be more clinically useful than natural and gene recombinant lactoferrin, as well as a method for preparation thereof, etc. The present invention provides a fusion protein formed with a protein or peptide comprising an FcRn-binding region and lactoferrin or a biologically active fragment or peptide of lactoferrin, which is represented by: (LF-s-Y)n or (Y-s-LF)n [wherein LF represents lactoferrin or a biologically active fragment or peptide of lactoferrin, represents the protein or peptide comprising an FcRn-binding region, s represents ally amino acid sequence of 0 to 10 residues, and n represents an integer of 1 to 10], or a variant thereof.Type: GrantFiled: April 23, 2013Date of Patent: November 7, 2017Assignee: NRL PHARMA, INC.Inventors: Atsushi Sato, Shinji Kagaya
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Publication number: 20170296629Abstract: An object of the present invention is to provide a novel drug inhibiting extracellular trap formation in leukocytes. The present invention provides an inhibitor of extracellular trap formation in leukocytes containing a lactoferrin fragment, and a composition containing lactoferrin for treating a disease related to the extracellular trap formation in leukocytes.Type: ApplicationFiled: October 6, 2015Publication date: October 19, 2017Applicants: KEIO UNIVERSITY, NRL PHARMA, INC.Inventors: Junichi HIRAHASHI, Koshu OKUBO, Hiroshi KAWAKAMI, Shinji KAGAYA
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Publication number: 20160067315Abstract: The present invention has an object of providing a novel drug inhibiting formation of leukocyte extracellular traps. The present invention provides a lactoferrin-containing inhibitor of formation of leukocyte extracellular traps, and a lactoferrin-containing composition for treating a disease associated with the formation of the leukocyte extracellular traps.Type: ApplicationFiled: April 8, 2014Publication date: March 10, 2016Inventors: Junichi HIRAHASHI, Yasuteru URANO, Koushu OKUBO, Mako KAMIYA, Shinji KAGAYA
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Publication number: 20150093382Abstract: The present invention aims to provide a lactoferrin fusion protein, which is configured to retain the biological activities of natural lactoferrin, to have a significantly prolonged in vivo lifetime, and to be more clinically useful than natural and gene recombinant lactoferrin, as well as a method for preparation thereof, etc. The present invention provides a fusion protein formed with a protein or peptide comprising an FcRn-binding region and lactoferrin or a biologically active fragment or peptide of lactoferrin, which is represented by: (LF-s-Y)n or (Y-s-LF)n [wherein LF represents lactoferrin or a biologically active fragment or peptide of lactoferrin, Y represents the protein or peptide comprising an FcRn-binding region, s represents any amino acid sequence of 0 to 10 residues, and n represents an integer of 1 to 10], or a variant thereof.Type: ApplicationFiled: April 23, 2013Publication date: April 2, 2015Inventors: Atsushi Sato, Shinji Kagaya
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Patent number: 7172867Abstract: Differential expression of genes whose expression is different in the activated eosinophils of atopic dermatitis patients was measured by comparative analysis using a gene chip. As a result, the TR3 and TINUR genes, whose expression is significantly elevated in activated eosinophils, were successfully identified. The present inventors discovered that these genes can be used to test for allergic disease and to screen candidate compounds for therapeutic agents for allergic disease.Type: GrantFiled: July 1, 2003Date of Patent: February 6, 2007Assignees: Genox Research, Inc., Japan as Represented by General Director of Agency of National Center for Child Health & DevelopmentInventors: Ryoichi Hashida, Shinji Kagaya, Yuji Sugita, Hirohisa Saito
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Patent number: 7115373Abstract: Genes whose expression differ between that in eosinophils collected from atopic dermatitis patients of the exabartation stage and those of the remission stage were searched via a differential display method. As a result, NOR-1 (MINOR) gene was successfully identified whose expression significantly increased in eosinophils of patients in the remission stage, a stage associated with a decrease of eosinophils. The present inventors discovered that the gene can be successfully employed in testing for allergic diseases and screening for candidate compounds for therapeutic agents.Type: GrantFiled: June 27, 2003Date of Patent: October 3, 2006Assignees: Genox Research, Inc., Japan as Represented by General Director of Agency of National Center For Child Health & DevelopmentInventors: Ryoichi Hashida, Shinji Kagaya, Yoshihiro Yayoi, Yuji Sugita, Hirohisa Saito
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Publication number: 20040234969Abstract: CYP1B1 was obtained as a gene whose expression levels in mononuclear cells greatly differs between a steroid responder group and a poorly steroid responder group of atopic dermatitis patients. CYP1B1 is a gene whose expression levels are reduced in mononuclear cells of the poorly steroid responder group. The present invention provides a method for testing steroid responsiveness and a method of screening for a compound that is useful in improving steroid responsiveness using the expression level of this gene in biological samples as an indicator.Type: ApplicationFiled: May 19, 2004Publication date: November 25, 2004Inventors: Sugita Yuji, Masayuki Heishi, Shinji Kagaya, Shigemichi Gunji, Hiroshisa Saito
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Publication number: 20040214231Abstract: Differential expression of genes whose expression is different in the activated eosinophils of atopic dermatitis patients was measured by comparative analysis using a gene chip. As a result, the TR3 and TINUR genes, whose expression is significantly elevated in activated eosinophils, were successfully identified. The present inventors discovered that these genes can be used to test for allergic disease and to screen candidate compounds for therapeutic agents for allergic disease.Type: ApplicationFiled: July 1, 2003Publication date: October 28, 2004Applicants: Genox Research, Inc., Japan as Rep. by General Director of Agency of National Center for Child Health and DevelopmentInventors: Ryoichi Hashida, Shinji Kagaya, Yuji Sugita, Hirohisa Saito
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Publication number: 20040214192Abstract: Genes whose expression differ between that in eosinophils collected from atopic dermatitis patients of the exabartation stage and those of the remission stage were searched via a differential display method. As a result, NOR-1 (MINOR) gene was successfully identified whose expression significantly increased in eosinophils of patients in the remission stage, a stage associated with a decrease of eosinophils. The present inventors discovered that the gene can be successfully employed in testing for allergic diseases and screening for candidate compounds for therapeutic agents.Type: ApplicationFiled: June 27, 2003Publication date: October 28, 2004Applicants: Genox Research, Inc., Japan as Represented by General Director of Agency of National Center for Child Health & DevelopmentInventors: Ryoichi Hashida, Shinji Kagaya, Yoshihiro Yayoi, Yuji Sugita, Hirohisa Saito
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Publication number: 20040197786Abstract: RING6 and HLA-DMB are described herein as genes whose expression levels in mononuclear cells greatly differ between a steroid responder group and a poor steroid responder group in atopic dermatitis patients. Specifically, the expression levels of the RING6 and HLA-DMB genes were demonstrated to be reduced in steroid-responsive patients. Using the expression level of such genes in biological samples as markers of steroid responsiveness, the present invention provides a method of testing for steroid responsiveness and a method of screening for compounds that may be used to improve steroid responsiveness.Type: ApplicationFiled: May 25, 2004Publication date: October 7, 2004Inventors: Yuji Sugita, Masayuki Heishi, Shinji Kagaya, Shigemichi Gunji, Gozoh Tsujimoto