Patents Assigned to TOKIWA-BIO INC.
  • Patent number: 11926840
    Abstract: The present invention enables simultaneous and stable expression of a plurality of foreign genes by using a stealthy RNA gene expression system that is a complex that does not activate the innate immune mechanism and is formed from an RNA-dependent RNA polymerase, a single-strand RNA binding protein, and negative-sense single-strand RNAs including the following (1) to (8): (1) a target RNA sequence that codes for any protein or functional RNA; (2) an RNA sequence forming a noncoding region and derived from mRNA expressed in animal cells; (3) a transcription initiation signal sequence recognized by the RNA-dependent RNA polymerase; (4) a transcription termination signal sequence recognized by the polymerase; (5) an RNA sequence containing a replication origin recognized by the polymerase; (6) an RNA sequence that codes for the polymerase and of which codons are optimized for the species from which an introduction target cell is derived; (7) an RNA sequence that codes for a protein for regulating the activity o
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: March 12, 2024
    Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, TOKIWA-BIO INC.
    Inventors: Mahito Nakanishi, Minoru Iijima
  • Patent number: 11834667
    Abstract: The present invention enables simultaneous and stable expression of a plurality of foreign genes by using a stealthy RNA gene expression system that is a complex that does not activate the innate immune mechanism and is formed from an RNA-dependent RNA polymerase, a single-strand RNA binding protein, and negative-sense single-strand RNAs including the following (1) to (8): (1) a target RNA sequence that codes for any protein or functional RNA; (2) an RNA sequence forming a noncoding region and derived from mRNA expressed in animal cells; (3) a transcription initiation signal sequence recognized by the RNA-dependent RNA polymerase; (4) a transcription termination signal sequence recognized by the polymerase; (5) an RNA sequence containing a replication origin recognized by the polymerase; (6) an RNA sequence that codes for the polymerase and of which codons are optimized for the species from which an introduction target cell is derived; (7) an RNA sequence that codes for a protein for regulating the activity o
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: December 5, 2023
    Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, TOKIWA-BIO INC.
    Inventors: Mahito Nakanishi, Minoru Iijima
  • Publication number: 20200190537
    Abstract: The present invention enables simultaneous and stable expression of a plurality of foreign genes by using a stealthy RNA gene expression system that is a complex that does not activate the innate immune mechanism and is formed from an RNA-dependent RNA polymerase, a single-strand RNA binding protein, and negative-sense single-strand RNAs including the following (1) to (8) : (1) a target RNA sequence that codes for any protein or functional RNA; (2) an RNA sequence forming a noncoding region and derived from mRNA expressed in animal cells; (3) a transcription initiation signal sequence recognized by the RNA-dependent RNA polymerase; (4) a transcription termination signal sequence recognized by the polymerase; (5) an RNA sequence containing a replication origin recognized by the polymerase; (6) an RNA sequence that codes for the polymerase and of which codons are optimized for the species from which an introduction target cell is derived; (7) an RNA sequence that codes for a protein for regulating the activity
    Type: Application
    Filed: November 22, 2019
    Publication date: June 18, 2020
    Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, TOKIWA-BIO INC.
    Inventors: Mahito Nakanishi, Minoru Iijima
  • Publication number: 20200157571
    Abstract: The present invention enables simultaneous and stable expression of a plurality of foreign genes by using a stealthy RNA gene expression system that is a complex that does not activate the innate immune mechanism and is formed from an RNA-dependent RNA polymerase, a single-strand RNA binding protein, and negative-sense single-strand RNAs including the following (1) to (8): (1) a target RNA sequence that codes for any protein or functional RNA; (2) an RNA sequence forming a noncoding region and derived from mRNA expressed in animal cells; (3) a transcription initiation signal sequence recognized by the RNA-dependent RNA polymerase; (4) a transcription termination signal sequence recognized by the polymerase; (5) an RNA sequence containing a replication origin recognized by the polymerase; (6) an RNA sequence that codes for the polymerase and of which codons are optimized for the species from which an introduction target cell is derived; (7) an RNA sequence that codes for a protein for regulating the activity o
    Type: Application
    Filed: December 4, 2019
    Publication date: May 21, 2020
    Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, TOKIWA-BIO INC.
    Inventors: Mahito Nakanishi, Minoru Iijima
  • Patent number: 10544431
    Abstract: Simultaneous expression of a plurality of foreign genes by using a stealthy RNA gene expression system that is a complex that does not activate the innate immune mechanism and is formed from an RNA-dependent RNA polymerase, a single-strand RNA binding protein, and negative-sense single-strand RNAs including the following (1) to (8): (1) a target RNA sequence that codes for any protein or functional RNA; (2) an RNA sequence forming a noncoding region and derived from mRNA; (3) a transcription initiation signal sequence recognized by the RNA-dependent RNA polymerase; (4) a transcription termination signal sequence recognized by the polymerase; (5) an RNA sequence containing a replication origin recognized by the polymerase; (6) an RNA sequence that codes for the polymerase; (7) an RNA sequence that codes for a protein for regulating the activity of the polymerase; and (8) an RNA sequence that codes for the single-strand RNA binding protein.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: January 28, 2020
    Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, TOKIWA-BIO INC.
    Inventors: Mahito Nakanishi, Minoru Iijima
  • Publication number: 20170369903
    Abstract: Simultaneous expression of a plurality of foreign genes by using a stealthy RNA gene expression system that is a complex that does not activate the innate immune mechanism and is formed from an RNA-dependent RNA polymerase, a single-strand RNA binding protein, and negative-sense single-strand RNAs including the following (1) to (8): (1) a target RNA sequence that codes for any protein or functional RNA; (2) an RNA sequence forming a noncoding region and derived from mRNA; (3) a transcription initiation signal sequence recognized by the RNA-dependent RNA polymerase; (4) a transcription termination signal sequence recognized by the polymerase; (5) an RNA sequence containing a replication origin recognized by the polymerase; (6) an RNA sequence that codes for the polymerase; (7) an RNA sequence that codes for a protein for regulating the activity of the polymerase; and (8) an RNA sequence that codes for the single-strand RNA binding protein.
    Type: Application
    Filed: January 18, 2016
    Publication date: December 28, 2017
    Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, TOKIWA-BIO INC.
    Inventors: Mahito Nakanishi, Minoru Iijima