Patents by Inventor Sunghwa Choe

Sunghwa Choe 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).

  • Patent number: 11865164
    Abstract: A pharmaceutical composition for treating cancer, containing a crRNA and an endonuclease as active ingredients is disclosed. The composition can be customized according to the needs of patients or cell types by specifically treating cancer cells on the basis of specific binding properties of DNA and RNA. The nuclease activity of a CRISPR PLUS system, containing both an endonuclease and an exonuclease can be activated by means of the binding between crRNA and a gene specifically found in cancer cells. Therefore, the cancer treatment effect of the composition is more specific than that of other anti-cancer agents that have been developed up till now.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: January 9, 2024
    Assignee: G+FLAS LIFE SCIENCES
    Inventors: Sunghwa Choe, Mi Jin Park, Aiden Yeonghoon Park, Jung Hak Lim, Dong Wook Kim, Sungyong In, Jongjin Park
  • Publication number: 20220389404
    Abstract: The present disclosure provides compositions and methods for increasing mutation efficiency and homologous recombination rates of site-specific endonucleases. The compositions and methods comprise a chimeric polypeptide comprising a site-specific endonuclease or a domain thereof and a functional moiety. The current inventions relate to functional enhancement of the CRISPR-Cas enzymes. Disclosed herein include possible variants and their intended improvements.
    Type: Application
    Filed: March 1, 2022
    Publication date: December 8, 2022
    Inventors: Jongjin PARK, Ji Young YOON, Sunmee CHOI, Mijin PARK, Slki PARK, Aiden Y. PARK, Jung Hyuk LEE, Junghak LIM, Dong Wook KIM, Sunghwa CHOE
  • Patent number: 11491208
    Abstract: Enhanced, specific nucleic acid targeting complexes comprising endo and exonuclease activity, and related methods that allow both targeted degradation of specific and/or non-specific nucleic acids in vivo and specific temporal regulation of nuclease activity to prevent off-target activity are disclosed herein. Through practice of the disclosure, nucleic acids, and cells harboring them, such as cancer cells or pathogens, are selectively degraded in vivo.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: November 8, 2022
    Assignees: GFLAS LIFE SCIENCES, INC., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sungyong In, Sunghwa Choe, Mi Jin Park, Aiden Y. Park, Jung Hak Lim, Dong Wook Kim, Youngdong Yoo, Jongjin Park
  • Publication number: 20220313796
    Abstract: Enhanced, specific nucleic acid targeting complexes comprising endo and exonuclease activity, and related methods that allow both targeted degradation of specific and/or non-specific nucleic acids in vivo and specific temporal regulation of nuclease activity to prevent off-target activity are disclosed herein. Through practice of the disclosure, nucleic acids, and cells harboring them, such as cancer cells or pathogens, are selectively degraded in vivo.
    Type: Application
    Filed: May 11, 2022
    Publication date: October 6, 2022
    Inventors: Sungyong IN, Sunghwa CHOE, Mi Jin PARK, Aiden Y. PARK, Jung Hak LIM, Dong Wook KIM, Youngdong YOO, Jongjin PARK
  • Patent number: 11434478
    Abstract: The present disclosure provides novel Cas12a proteins, which cleave target nucleic acids and methods of use thereof.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: September 6, 2022
    Assignees: GFLAS LIFE SCIENCES, INC., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sunghwa Choe, Jongjin Park, Ji Young Yoon, Han Seong Kim, Dong Wook Kim
  • Patent number: 11293019
    Abstract: The present disclosure provides compositions and methods for increasing mutation efficiency and homologous recombination rates of site-specific endonucleases. The compositions and methods comprise a chimeric polypeptide comprising a site-specific endonuclease or a domain thereof and a functional moiety. The current inventions relate to functional enhancement of the CRISPR-Cas enzymes. Disclosed herein include possible variants and their intended improvements.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 5, 2022
    Assignees: GFLAS LIFE SCIENCES, INC., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Jongjin Park, Ji Young Yoon, Sunmee Choi, Mijin Park, Slki Park, Aiden Y. Park, Jung Hyuk Lee, Junghak Lim, Dong Wook Kim, Sunghwa Choe
  • Publication number: 20210340554
    Abstract: The present invention relates to a method of increasing the production efficiency of gene-edited plants, regenerated from plant protoplasts, by use of a Cas protein-guide RNA ribonucleoprotein (RNP). According to the present invention, the method of increasing the production efficiency of gene-edited plants makes it possible to efficiently produce target gene-mutated plants and to minimize the introduction of foreign DNA into plants. Thus, the present invention can be very advantageously used in a wide variety of fields, including agriculture, food and biotechnology.
    Type: Application
    Filed: July 2, 2021
    Publication date: November 4, 2021
    Inventors: Jin Soo KIM, Jungeun KIM, Sunghwa CHOE, Je Wook WOO, Soon Il KWON, Hyeran KIM
  • Patent number: 11149281
    Abstract: The present invention relates to a method of increasing the production efficiency of gene-edited plants, regenerated from plant protoplasts, by use of a Cas protein-guide RNA ribonucleoprotein (RNP). According to the present invention, the method of increasing the production efficiency of gene-edited plants makes it possible to efficiently produce target gene-mutated plants and to minimize the introduction of foreign DNA into plants. Thus, the present invention can be very advantageously used in a wide variety of fields, including agriculture, food and biotechnology.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: October 19, 2021
    Assignees: INSTITUTE FOR BASIC SCIENCE, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, AICT
    Inventors: Jin Soo Kim, Jungeun Kim, Sunghwa Choe, Je Wook Woo, Soon Il Kwon, Hyeran Kim
  • Patent number: 11136588
    Abstract: The present invention relates to method for preparing a plant from a protoplast comprising knocking-out or knocking-in one or more the endogenous gene of the protoplast, and the plant regenerated from a genome-modified protoplast prepared by the above method.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: October 5, 2021
    Assignees: INSTITUTE FOR BASIC SCIENCE, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, AICT
    Inventors: Jin Soo Kim, Jungeun Kim, Sunghwa Choe, Je Wook Woo, Soon Il Kwon
  • Publication number: 20210292722
    Abstract: A novel CRISPR-associated protein and a use thereof are disclosed. A protein of the amino acid sequence of SEQ ID NO: 1 or SEQ ID NO: 3 exhibits the activity of endonucleases, which recognize and cleave an intracellular nucleic acid sequence linked to a guide RNA. Therefore, a novel CRISPR-associated protein can be used as a different nuclease for genome editing, in a CRISPR-Cas system.
    Type: Application
    Filed: August 9, 2019
    Publication date: September 23, 2021
    Applicants: G+FLAS LIFE SCIENCES, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sunghwa CHOE, Han Seong KIM, Dong Wook KIM, Jongjin PARK, Jiyoung YOON
  • Publication number: 20210222140
    Abstract: The present disclosure provides novel Cas12a proteins, which cleave target nucleic acids and methods of use thereof.
    Type: Application
    Filed: February 9, 2021
    Publication date: July 22, 2021
    Inventors: Sunghwa CHOE, Jongjin PARK, Jiyoung YOON, Han Seong KIM, Dong Wook KIM
  • Publication number: 20210128697
    Abstract: A pharmaceutical composition for treating cancer, containing a crRNA and an endonuclease as active ingredients is disclosed. The composition can be customized according to the needs of patients or cell types by specifically treating cancer cells on the basis of specific binding properties of DNA and RNA. The nuclease activity of a CRISPR PLUS system, containing both an endonuclease and an exonuclease can be activated by means of the binding between crRNA and a gene specifically found in cancer cells. Therefore, the cancer treatment effect of the composition is more specific than that of other anti-cancer agents that have been developed up till now.
    Type: Application
    Filed: March 27, 2019
    Publication date: May 6, 2021
    Applicant: G+Flas Life Sciences
    Inventors: Sunghwa CHOE, Mi Jin PARK, Aiden Yeonghoon PARK, Jung Hak LIM, Dong Wook KIM, Sungyong IN, Jongjin PARK
  • Publication number: 20210077594
    Abstract: Enhanced, specific nucleic acid targeting complexes comprising endo and exonuclease activity, and related methods that allow both targeted degradation of specific and/or non-specific nucleic acids in vivo and specific temporal regulation of nuclease activity to prevent off-target activity are disclosed herein. Through practice of the disclosure, nucleic acids, and cells harboring them, such as cancer cells or pathogens, are selectively degraded in vivo.
    Type: Application
    Filed: September 25, 2020
    Publication date: March 18, 2021
    Inventors: Sungyong IN, Sunghwa CHOE, Mi Jin PARK, Aiden Y. PARK, Jung Hak LIM, Dong Wook KIM, Youngdong YOO, Jongjin PARK
  • Publication number: 20210054362
    Abstract: The present disclosure provides compositions and methods for increasing mutation efficiency and homologous recombination rates of site-specific endonucleases. The compositions and methods comprise a chimeric polypeptide comprising a site-specific endonuclease or a domain thereof and a functional moiety. The current inventions relate to functional enhancement of the CRISPR-Cas enzymes. Disclosed herein include possible variants and their intended improvements.
    Type: Application
    Filed: December 21, 2018
    Publication date: February 25, 2021
    Inventors: Jongjin PARK, Ji Young YOON, Sunmee CHOI, Mijin PARK, Slki PARK, Aiden Y. PARK, Jung Hyuk LEE, Junghak LIM, Dong Wook KIM, Sunghwa CHOE
  • Publication number: 20190338298
    Abstract: The present invention relates to a method of increasing the production efficiency of gene-edited plants, regenerated from plant protoplasts, by use of a Cas protein-guide RNA ribonucleoprotein (RNP). According to the present invention, the method of increasing the production efficiency of gene-edited plants makes it possible to efficiently produce target gene-mutated plants and to minimize the introduction of foreign DNA into plants. Thus, the present invention can be very advantageously used in a wide variety of fields, including agriculture, food and biotechnology.
    Type: Application
    Filed: October 6, 2016
    Publication date: November 7, 2019
    Inventors: Jin Soo KIM, Jungeun KIM, Sunghwa CHOE, Je Wook WOO, Soon II KWON, Hyeran KIM
  • Publication number: 20190135879
    Abstract: The present invention relates to a gene that regulates BIN2 function and a transgenic plant into which the gene is introduced. When the gene of the present invention is introduced into an economically useful crop, it is advantageous to produce a high value-added plant with excellent productivity.
    Type: Application
    Filed: November 29, 2018
    Publication date: May 9, 2019
    Inventors: Sunghwa Choe, Yu Jeong Jeong
  • Publication number: 20190119750
    Abstract: The present disclosure relates to a method for discovering effective bioactive compounds, based on plant developmental biology, and aims to discover a lead bioactive compound for new drugs by repeating screening based on phenotypes of a plant as a marker on the basis of plant developmental biology. To this end, the present disclosure provides a method for discovering effective bioactive compounds, and includes screening candidates for developing a new drug by using unique phenotypes as a marker shown by a plant when it is grown with a specific material.
    Type: Application
    Filed: October 30, 2018
    Publication date: April 25, 2019
    Inventors: Sunghwa CHOE, Maya Maharjan PUNA, Slki PARK, Richard CHA
  • Publication number: 20180312869
    Abstract: The present invention relates to method for preparing a plant from a protoplast comprising knocking-out or knocking-in one or more the endogenous gene of the protoplast, and the plant regenerated from a genome-modified protoplast prepared by the above method.
    Type: Application
    Filed: October 6, 2016
    Publication date: November 1, 2018
    Inventors: Jin Soo KIM, Jungeun KIM, Sunghwa CHOE, Je Wook WOO, Soon II KWON
  • Publication number: 20170291927
    Abstract: The present invention relates to a gene that regulates BIN2 function and a transgenic plant into which the gene is introduced. When the gene of the present invention is introduced into an economically useful crop, it is advantageous to produce a high value-added plant with excellent productivity.
    Type: Application
    Filed: March 27, 2017
    Publication date: October 12, 2017
    Inventors: Sunghwa CHOE, Yu Jeong JEONG
  • Publication number: 20170218445
    Abstract: The present disclosure relates to a method for discovering effective bioactive compounds, based on plant developmental biology, and aims to discover a lead bioactive compound for new drugs by repeating screening based on phenotypes of a plant as a marker on the basis of plant developmental biology. To this end, the present disclosure provides a method for discovering effective bioactive compounds, and includes screening candidates for developing a new drug by using unique phenotypes as a marker shown by a plant when it is grown with a specific material.
    Type: Application
    Filed: June 17, 2015
    Publication date: August 3, 2017
    Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sunghwa CHOE, Maya Maharjan PUNA, Slki PARK, Richard CHA