Patents by Inventor Yuko Shimatani
Yuko Shimatani 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: 20220281998Abstract: An object of the present invention is to provide a bacterium of the genus Bifidobacterium exerting an anti-tumor effect against solid cancers sustainably and specifically. Produced is a bacterium of the genus Bifidobacterium expressing a first polypeptide comprising a light-chain variable region (VL) that binds to human CD3 and a heavy-chain variable region (VH) that binds to a human tumor cell surface antigen; and a second polypeptide comprising VL that binds to a human tumor cell surface antigen and VH that binds to human CD3 and secreting a diabody-type bispecific antibody composed of the first polypeptide and the second polypeptide.Type: ApplicationFiled: May 13, 2020Publication date: September 8, 2022Inventors: Yuko Shimatani, Satoshi Kobayashi, Koichiro Shioya, Shiro Kataoka, Yuji Seki, Tomio Matsumura, Yasuyoshi Kanari, Mitsuo Umetsu, Hikaru Nakazawa
-
Patent number: 10993972Abstract: Provided are: a transformation plasmid for transforming anaerobes and enabling highly efficient and stable secretory expression of a target protein; a gene delivery carrier formed from said anaerobes transformed by said plasmid; a pharmaceutical composition including said gene delivery carrier; and a method for diagnosing or treating an ischemic disease utilizing these. Also provided are: a novel secretory signal; a transformation plasmid including said secretory signal; a gene delivery carrier formed from anaerobes transformed by said plasmid; a pharmaceutical composition including said gene delivery carrier; and a method for diagnosing or treating an ischemic disease utilizing these.Type: GrantFiled: January 18, 2016Date of Patent: May 4, 2021Assignees: Shinshu University, Anaeropharma Science, Inc.Inventors: Yuko Wada, Yuko Shimatani, Takashi Yano, Takeshi Masaki
-
Patent number: 10563208Abstract: The object of the invention is to provide an anaerobic enterobacterium having a higher therapeutic effect on an anaerobic site such as a solid tumor tissue and an ischemic disease site. A bacterium of the genus Bifidobacterium, which is transformed with a plasmid co-expressing two types of heterologous polypeptides and comprising two types of secretory expression cassettes each sequentially comprising a promoter DNA functioning in the bacterium of the genus Bifidobacterium; a DNA encoding a secretory signal peptide; a DNA encoding a heterologous polypeptide; and a terminator DNA functioning in the bacterium of the genus Bifidobacterium, efficiently secretes the two types of heterologous peptides, i.e., two types of antibodies having anticancer effects, outside the bacterial cell.Type: GrantFiled: December 2, 2015Date of Patent: February 18, 2020Assignee: Anaeropharma Science, Inc.Inventors: Koichi Koseki, Koichiro Shioya, Satoshi Kobayashi, Yuko Shimatani, Takeshi Masaki, Hitomi Shimizu, Tomio Matsumura, Masami Okabe, Kengo Inoue
-
Patent number: 10443061Abstract: An object is to provide a signal peptide that can secrete a heterologous polypeptide with high efficiency outside the bacterial cell in a bacterium of the genus Bifidobacterium, an expression cassette that can secrete a heterologous polypeptide with high efficiency outside the bacterial cell, a heterologous polypeptide expression vector, a bacterium of the genus Bifidobacterium capable of secreting a heterologous polypeptide. Means for attaining the object is a bacterium of the genus Bifidobacterium transformed by a vector having an expression cassette sequentially comprising a promoter DNA functioning in a bacterium of the genus Bifidobacterium, a DNA encoding the secretory signal peptide, a DNA encoding a scFv antibody having an antitumor activity, and a terminator DNA functioning in the bacterium of the genus Bifidobacterium; and capable of secreting the scFv antibody with high efficiency outside the bacterial cell.Type: GrantFiled: April 17, 2015Date of Patent: October 15, 2019Assignee: Anaeropharma Science, Inc.Inventors: Koichi Koseki, Takeshi Masaki, Koichiro Shioya, Hitomi Shimizu, Masao Tsukamoto, Satoshi Kobayashi, Tomio Matsumura, Yuko Shimatani
-
Publication number: 20180360893Abstract: Provided are: a transformation plasmid for transforming anaerobes and enabling highly efficient and stable secretory expression of a target protein; a gene delivery carrier formed from said anaerobes transformed by said plasmid; a pharmaceutical composition including said gene delivery carrier; and a method for diagnosing or treating an ischemic disease utilizing these. Also provided are: a novel secretory signal; a transformation plasmid including said secretory signal; a gene delivery carrier formed from anaerobes transformed by said plasmid; a pharmaceutical composition including said gene delivery carrier; and a method for diagnosing or treating an ischemic disease utilizing these.Type: ApplicationFiled: January 18, 2016Publication date: December 20, 2018Applicants: Shinshu University, Anaeropharma Science, Inc.Inventors: Yuko Wada, Yuko Shimatani, Takashi Yano, Takeshi Masaki
-
Publication number: 20170260534Abstract: The object of the invention is to provide an anaerobic enterobacterium having a higher therapeutic effect on an anaerobic site such as a solid tumor tissue and an ischemic disease site. A bacterium of the genus Bifidobacterium, which is transformed with a plasmid co-expressing two types of heterologous polypeptides and comprising two types of secretory expression cassettes each sequentially comprising a promoter DNA functioning in the bacterium of the genus Bifidobacterium; a DNA encoding a secretory signal peptide; a DNA encoding a heterologous polypeptide; and a terminator DNA functioning in the bacterium of the genus Bifidobacterium, efficiently secretes the two types of heterologous peptides, i.e., two types of antibodies having anticancer effects, outside the bacterial cell.Type: ApplicationFiled: December 2, 2015Publication date: September 14, 2017Inventors: Koichi KOSEKI, Koichiro SHIOYA, Satoshi KOBAYASHI, Yuko SHIMATANI, Takeshi MASAKI, Hitomi SHIMIZU, Tomio MATSUMURA, Masami OKABE, Kengo INOUE
-
Patent number: 9730968Abstract: [Object] To provide a gene transfer carrier that specifically accumulates only at a disease site even with systemic administration, has a high protein expression rate, and disappears from the disease site accompanying a cure, and a method for the treatment of an ischemic disease using same. [Solution means] The above-mentioned object has been accomplished by providing a gene transfer carrier formed from an anaerobic bacterium that can grow specifically at the site of an ischemic disease and can express at least one type of protein that is useful for the diagnosis or treatment of an ischemic disease, a pharmaceutical composition containing the gene transfer carrier, and a treatment method for an ischemic disease utilizing same.Type: GrantFiled: April 20, 2015Date of Patent: August 15, 2017Assignee: Anaeropharma Science, Inc.Inventors: Yuko Wada, Yuko Shimatani-Shibata, Hitomi Shimizu-Matsuhashi, Takayuki Sasaki, Hiromi Yonekura
-
Publication number: 20170183667Abstract: An object is to provide a signal peptide that can secrete a heterogeneous polypeptide with high efficiency outside the bacterial cell in a bacterium of the genus Bifidobacterium, an expression cassette that can secrete a heterogeneous polypeptide with high efficiency outside the bacterial cell, a heterogeneous polypeptide expression vector, a bacterium of the genus Bifidobacterium capable of secreting a heterogeneous polypeptide. Means for attaining the object is a bacterium of the genus Bifidobacterium transformed by a vector having an expression cassette sequentially comprising a promoter DNA functioning in a bacterium of the genus Bifidobacterium, a DNA encoding the secretory signal peptide, a DNA encoding a scFv antibody having an antitumor activity, and a terminator DNA functioning in the bacterium of the genus Bifidobacterium; and capable of secreting the scFv antibody with high efficiency outside the bacterial cell.Type: ApplicationFiled: April 17, 2015Publication date: June 29, 2017Inventors: Koichi Koseki, Takeshi Masaki, Koichiro Shioya, Hitomi Shimizu, Masao Tsukamoto, Satoshi Kobayashi, Tomio Matsumura, Yuko Shimatani
-
Patent number: 9228191Abstract: The present invention relates to a novel secretory signal, a novel plasmid containing the secretory signal, a transformed anaerobic bacterium transformed with said plasmid, a gene transfer carrier consisting of said anaerobic bacterium, and a pharmaceutical composition containing said carrier.Type: GrantFiled: January 28, 2011Date of Patent: January 5, 2016Assignee: Anaeropharma Science, Inc.Inventors: Yuko Shimatani-Shibata, Hitomi Shimizu-Matsuhashi, Takayuki Sasaki
-
Publication number: 20150290259Abstract: To provide a gene transfer carrier that specifically accumulates only at a disease site even with systemic administration, has a high protein expression rate, and disappears from the disease site accompanying a cure, and a method for the treatment of an ischemic disease using same. The above-mentioned object has been accomplished by providing a gene transfer carrier formed from an anaerobic bacterium that can grow specifically at the site of an ischemic disease and can express at least one type of protein that is useful for the diagnosis or treatment of an ischemic disease, a pharmaceutical composition containing the gene transfer carrier, and a treatment method for an ischemic disease utilizing same.Type: ApplicationFiled: April 20, 2015Publication date: October 15, 2015Applicant: Anaeropharma Science, Inc.Inventors: Yuko Wada, Yuko Shimatani-Shibata, Hitomi Shimizu-Matsuhashi, Takayuki Sasaki, Hiromi Yonekura
-
Patent number: 8911721Abstract: An object of the present invention is to provide a method of efficiently constructing a gene delivery carrier having a favorable activity and expression efficiency of a protein expressed by a gene introduced by transformation. Moreover, an object of the present invention is to provide a pharmaceutical composition comprising a gene delivery carrier constructed by the construction method and a therapeutic agent for solid tumor comprising the resistant bacterium.Type: GrantFiled: May 24, 2007Date of Patent: December 16, 2014Assignee: Anaeropharma Science, Inc.Inventors: Yuko Shimatani, Yoshinori Hamaji, Hitomi Matsuhashi, Jun Amano, Shun'ichiro Taniguchi, Minoru Fujimori
-
Patent number: 8535939Abstract: The present invention relates to a secretory signal, a plasmid containing the secretory signal, a transformed anaerobic bacterium transformed with said plasmid, a gene transfer carrier consisting of said anaerobic bacterium, and a pharmaceutical composition containing said carrier.Type: GrantFiled: January 28, 2011Date of Patent: September 17, 2013Assignee: Anaeropharma Science, Inc.Inventors: Yuko Shimatani-Shibata, Hitomi Shimizu-Matsuhashi, Takayuki Sasaki
-
Patent number: 8470311Abstract: The present invention provides a therapeutic agent for anaerobic diseases such as solid tumor, comprising in combination a pharmaceutical composition for the treatment of an anaerobic disease containing the transformed anaerobic microorganism as an active component and a pharmaceutical composition containing as an active component an anaerobic microorganism colonization and growth enhancer for enhancing the specific colonization and proliferation of the anaerobic microorganism at an anaerobic disease site. Furthermore, the present invention provides to an anaerobic microorganism colonization and growth enhancer for enhancing colonization and growth of the transformed anaerobic microorganism at a disease site that is in an anaerobic environment.Type: GrantFiled: April 17, 2009Date of Patent: June 25, 2013Assignee: Anaeropharma Science, Inc.Inventors: Takayuki Sasaki, Hitomi Shimizu, Yuko Shimatani-Shibata, Hiromi Yonekura
-
Publication number: 20130095072Abstract: [Object] To provide a gene transfer carrier that specifically accumulates only at a disease site even with systemic administration, has a high protein expression rate, and disappears from the disease site accompanying a cure, and a method for the treatment of an ischemic disease using same. [Solution means] The above-mentioned object has been accomplished by providing a gene transfer carrier formed from an anaerobic bacterium that can grow specifically at the site of an ischemic disease and can express at least one type of protein that is useful for the diagnosis or treatment of an ischemic disease, a pharmaceutical composition containing the gene transfer carrier, and a treatment method for an ischemic disease utilizing same.Type: ApplicationFiled: July 13, 2012Publication date: April 18, 2013Applicant: Anaeropharma Science, Inc.Inventors: Yuko Wada, Yuko Shimatani-Shibata, Hitomi Shimizu-Matsuhashi, Takayuki Sasaki
-
Patent number: 8383398Abstract: A conventional shuttle vector constructed by fusing an E. coli-derived plasmid and a transformant-derived plasmid functions in both E. coli and the transformant bacterium, and there exists no expression vector that functions only in a non-E. coli transformant. The present invention provides an plasmid expression vector comprising (1) a plasmid replication unit that functions in an anaerobic microorganism other than E. coli and (2) a protein expression unit formed from DNA coding for a protein having target activity and a DNA fragment containing a promoter and a terminator that function in the anaerobic microorganism. The expression vector of the present invention is capable of being replicated only in a transformant, eliminating the risk of the replication of the transformant gene in other pathogenic or aerobic bacterium, providing an extremely safe and reliable vector and gene transporter for therapeutic application.Type: GrantFiled: April 16, 2009Date of Patent: February 26, 2013Assignee: Anaeropharma Science, Inc.Inventors: Yuko Shimatani-Shibata, Hiromi Yonekura, Hitomi Shimizu
-
Publication number: 20110190472Abstract: The present invention relates to a novel secretory signal, a novel plasmid containing the secretory signal, a transformed anaerobic bacterium transformed with said plasmid, a gene transfer carrier consisting of said anaerobic bacterium, and a pharmaceutical composition containing said carrier.Type: ApplicationFiled: January 28, 2011Publication date: August 4, 2011Applicant: Anaeropharma Science, Inc.Inventors: Yuko Shimatani-Shibata, Hitomi Shimizu-Matsuhashi, Takayuki Sasaki
-
Publication number: 20110189757Abstract: The present invention relates to a novel secretory signal, a novel plasmid containing the secretory signal, a transformed anaerobic bacterium transformed with said plasmid, a gene transfer carrier consisting of said anaerobic bacterium, and a pharmaceutical composition containing said carrier.Type: ApplicationFiled: January 28, 2011Publication date: August 4, 2011Applicant: Anaeropharma Science, Inc.Inventors: Yuko Shimatani-Shibata, Hitomi Shimizu-Matsuhashi, Takayuki Sasaki
-
Publication number: 20110189758Abstract: The present invention relates to a novel secretory signal, a novel plasmid containing the secretory signal, a transformed anaerobic bacterium transformed with said plasmid, a gene transfer carrier consisting of said anaerobic bacterium, and a pharmaceutical composition containing said carrier.Type: ApplicationFiled: January 28, 2011Publication date: August 4, 2011Applicant: Anaeropharma Science, Inc.Inventors: Yuko Shimatani-Shibata, Hitomi Shimizu-Matsuhashi, Takayuki Sasaki
-
Publication number: 20110110893Abstract: The present invention provides a therapeutic agent for anaerobic diseases such as solid tumor, comprising in combination a pharmaceutical composition for the treatment of an anaerobic disease containing the transformed anaerobic microorganism as an active component and a pharmaceutical composition containing as an active component an anaerobic microorganism colonization and growth enhancer for enhancing the specific colonization and proliferation of the anaerobic microorganism at an anaerobic disease site. Furthermore, the present invention provides to an anaerobic microorganism colonization and growth enhancer for enhancing colonization and growth of the transformed anaerobic microorganism at a disease site that is in an anaerobic environment.Type: ApplicationFiled: April 17, 2009Publication date: May 12, 2011Applicant: ANAEROPHARMA SCIENCE, INC.Inventors: Takayuki Sasaki, Hitomi Shimizu, Yuko Shimatani-Shibata, Hiromi Yonekura
-
Publication number: 20090264513Abstract: A conventional shuttle vector constructed by fusing an E. coli-derived plasmid and a transformant-derived plasmid functions in both E. coli and the transformant bacterium, and there exists no expression vector that functions only in a non-E. coli transformant. The present invention provides an plasmid expression vector comprising (1) a plasmid replication unit that functions in an anaerobic microorganism other than E. coli and (2) a protein expression unit formed from DNA coding for a protein having target activity and a DNA fragment containing a promoter and a terminator that function in the anaerobic microorganism. The expression vector of the present invention is capable of being replicated only in a transformant, eliminating the risk of the replication of the transformant gene in other pathogenic or aerobic bacterium, providing an extremely safe and reliable vector and gene transporter for therapeutic application.Type: ApplicationFiled: April 16, 2009Publication date: October 22, 2009Inventors: Yuko Shimatani-Shibata, Hiromi Yonekura, Hitomi Shimizu