Patents by Inventor Byoung S. Kwon

Byoung S. Kwon 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: 11013765
    Abstract: The present invention relates to an antigen-binding molecule comprising a heavy chain variable region comprising a heavy-chain complementarity-determining region 1 (HCDR1) comprising an amino acid sequence represented by Sequence No. 1, an HCDR2 comprising an amino acid sequence represented by Sequence No. 2, and an HCDR3 comprising an amino acid sequence represented by Sequence No. 3; a light-chain variable region comprising a light-chain complementarity-determining region 1 (LCDR1) comprising an amino acid sequence represented by Sequence No. 4, an LCDR2 comprising an amino acid sequence represented by Sequence No. 5, and an LCDR3 comprising an amino acid sequence represented by Sequence No. 6; wherein the antigen-binding molecule is a T cell receptor (TCR); and to a cell line expressing the same.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: May 25, 2021
    Inventors: Byoung S. Kwon, Young Ho Kim, Kwang Hee Kim, Ji Won Chung, Young Gyoon Chang, Bo Rim Yi, Jung Yun Lee, Seung Hyun Lee, Sun Woo Im, Jin Kyung Choi, Hyun Tae Son, Eun Hye Yoo
  • Patent number: 10927183
    Abstract: Provided are antibodies and antigen-binding fragment thereof that bind to VSIG4. Various in vitro and in vivo methods and compositions related to antibodies. Methods include prevention and/or therapeutic treatment of cancer using an antibody or an antigen-binding fragment that binds to VSIG4.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: February 23, 2021
    Assignee: Eutilex Co., Ltd.
    Inventors: Byoung S. Kwon, Hye Jeong Kim, Sunhee Hwang, Joongwon Lee, Seung Hyun Lee, Sun Woo Im, Jin Kyung Choi, Hyun Tae Son, Hyeok-Jun Park
  • Patent number: 10919972
    Abstract: Provided are anti-human 4-1BB antibodies and fragments thereof with one or more structural features that are not found in a reference anti-human 4-1BB antibody, where said features may improve certain characteristics of the antibody relative to a reference antibody. Various in vitro and in vivo methods and reagents related to anti-human 4-1BB antibodies described herein are also provided. Methods include, for example, inducing T-cell proliferation, inducing T cell secretion of IFN?, as well as detection, prevention, and/or therapeutic treatment of cancer using an anti-human 4-1BB antibody or fragment thereof.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: February 16, 2021
    Assignee: Eutilex Co., Ltd.
    Inventors: Byoung S. Kwon, Seoung-Joo Lee, Young Ho Kim, Ho-Sik Oh, Joong Won Lee
  • Patent number: 10919976
    Abstract: Provided are IFN-?-Inducible Regulatory T Cell Convertible Anti-Cancer (IRTCA) antibodies and antigen-binding fragment thereof that bind to an activation-inducible TNFR (AITR) polypeptide. Various in vitro and in vivo methods and compositions related to IRTCA antibodies described herein are also provided. Methods include, for example, changing cytokine secretion from T cells in vivo or in vitro and prevention and/or therapeutic treatment of cancer using an IRTCA antibody or fragment thereof.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: February 16, 2021
    Assignee: Eutilex Co., Ltd.
    Inventors: Byoung S Kwon, Seoung-Joo Lee, Joong Won Lee, Seunghyun Lee
  • Patent number: 10851151
    Abstract: The present invention relates to a novel epitope to convert T cell to type 17 helper T (TH17) cell. Specifically, the present invention relates to an epitope constituting the 41st to 50th amino acids (SEQ ID No.2) of extracellular domain (ECD) of activation-inducible tumor necrosis factor receptor (AITR), an antibody recognizing the epitope, a polynucleotide encoding the epitope, a polynucleotide encoding the antibody, an expression vector comprising the polynucleotide encoding the epitope or antibody, a transformant introduced with the vector, a composition comprising the antibody for converting T cell to TH17 cell and a method of conversion for the same, a pharmaceutical composition comprising the antibody for preventing or treating infectious disease, a method for treating infectious disease using the antibody, a composition comprising the antibody for enhancing immunity, and a method for enhancing immunity using the antibody.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: December 1, 2020
    Assignee: Eutilex Co., Ltd.
    Inventor: Byoung S. Kwon
  • Patent number: 10801011
    Abstract: Provided is a method for isolating and proliferating autologous cancer antigen-specific CD8+T cells, and more particularly, a method for selecting an epitope recognized by CD8+ T cells from autologous cancer antigens present in blood of individual cancer patients; and isolating autologous cancer antigen-specific CD8+ T cells by using a peptide of the selected epitope, and a method of massively proliferating CD8+ T cells by using the method. According to the present invention, it is possible to isolate autologous cancer antigen-specific CD8+ T cells by using the peptide of the CD8 T cell epitope of the autologous cancer antigen present in blood of individual cancer patients instead of a heterologous antigen. Therefore, by using T cells recognizing the autologous cancer antigen, it is possible to effectively select and eliminate cancer cells derived from the cancer patient's own cells. Thus, T cells can be applied to treatment and alleviation of cancer diseases without side effects.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: October 13, 2020
    Assignee: National Cancer Center
    Inventors: Byoung S. Kwon, Hyun-Guy Kang, Kwang-Hui Kim, Young-Woo Kim, Young-Ho Kim, Byung-Kiu Park, Sang-Yoon Park, Sang-Jae Park, Hyeon-Seok Eom, Ho-Sik Oh, Heon Yoo, Don-Gil Lee, Seung-Hoon Lee, Young-Joo Lee, Jin-Soo Lee, Beom-Kyu Choi
  • Publication number: 20200291126
    Abstract: Provided are antibodies and antigen-binding fragment thereof that bind to VSIG4. Various in vitro and in vivo methods and compositions related to antibodies. Methods include prevention and/or therapeutic treatment of cancer using an antibody or an antigen-binding fragment that binds to VSIG4.
    Type: Application
    Filed: April 2, 2020
    Publication date: September 17, 2020
    Inventors: Byoung S. Kwon, Hye Jeong Kim, Sunhee Hwang, Joongwon Lee, Seung Hyun Lee, Sun Woo Im, Jin Kyung Choi, Hyun Tae Son, Hyeok-Jun Park
  • Patent number: 10774151
    Abstract: Provided are anti-human 4-1BB antibodies and fragments thereof with one or more structural features that are not found in a reference anti-human 4-1BB antibody, where said features may improve certain characteristics of the antibody relative to a reference antibody. Various in vitro and in vivo methods and reagents related to anti-human 4-1BB antibodies described herein are also provided. Methods include, for example, inducing T-cell proliferation, inducing T cell secretion of IFN?, as well as detection, prevention, and/or therapeutic treatment of cancer using an anti-human 4-1BB antibody or fragment thereof.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: September 15, 2020
    Assignee: Eutilex Co., Ltd.
    Inventors: Byoung S. Kwon, Seoung-Joo Lee, Young Ho Kim, Ho-Sik Oh, Joong Won Lee
  • Publication number: 20200237821
    Abstract: The present invention relates to an antigen-binding molecule comprising a heavy chain variable region comprising a heavy-chain complementarity-determining region 1 (HCDR1) comprising an amino acid sequence represented by Sequence No. 1, an HCDR2 comprising an amino acid sequence represented by Sequence No. 2, and an HCDR3 comprising an amino acid sequence represented by Sequence No. 3; a light-chain variable region comprising a light-chain complementarity-determining region 1 (LCDR1) comprising an amino acid sequence represented by Sequence No. 4, an LCDR2 comprising an amino acid sequence represented by Sequence No. 5, and an LCDR3 comprising an amino acid sequence represented by Sequence No. 6; wherein the antigen-binding molecule is a T cell receptor (TCR); and to a cell line expressing the same.
    Type: Application
    Filed: December 16, 2019
    Publication date: July 30, 2020
    Inventors: Byoung S. Kwon, Young Ho Kim, Kwang Hee Kim, Ji Won Chung, Young Gyoon Chang, Bo Rim Yi, Jung Yun Lee, Seung Hyun Lee, Sun Woo Im, Jin Kyung Choi, Hyun Tae Son, Eun Hye Yoo
  • Publication number: 20200188437
    Abstract: The present invention relates to a pharmaceutical composition for preventing or treating cancer comprising cancer antigen-specific cytotoxic T cells; the pharmaceutical composition comprises about 7×106 cells/mL or more, and of the about 7×106 cells/mL, about 90% or more are CD8+ T cells.
    Type: Application
    Filed: December 16, 2019
    Publication date: June 18, 2020
    Inventors: Byoung S. Kwon, Young Ho Kim, Mun Ki Kim, Kwang Hee Kim, You Hyun Kang
  • Publication number: 20200172866
    Abstract: The present invention relates to a method of preparing cancer antigen-specific CD8+ T cells comprising (a) activating the CD8+ T cells from among PBMCs comprising cancer antigen-specific CD8+ T cells, and then expressing a co-stimulatory factor of these CD8+ T cells; (b) selecting the CD8+ T cells expressing a co-stimulatory factor among the cells activated in step (a); (c) increasing the number of CD8+ T cells selected in step (b); (d) freezing the CD8+ T cells obtained in step (c); and (e) thawing the CD8+ T cells that were frozen in step (d).
    Type: Application
    Filed: December 16, 2019
    Publication date: June 4, 2020
    Inventors: Byoung S. Kwon, Young Ho Kim, Mun Ki Kim, Kwang Hee Kim, You Hyun Kang, Sae Rom Lee
  • Publication number: 20200172626
    Abstract: Provided are anti-human 4-1BB antibodies and fragments thereof with one or more structural features that are not found in a reference anti-human 4-1BB antibody, where said features may improve certain characteristics of the antibody relative to a reference antibody. Various in vitro and in vivo methods and reagents related to anti-human 4-1BB antibodies described herein are also provided. Methods include, for example, inducing T-cell proliferation, inducing T cell secretion of IFN?, as well as detection, prevention, and/or therapeutic treatment of cancer using an anti-human 4-1BB antibody or fragment thereof.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 4, 2020
    Inventors: Byoung S. Kwon, Seoung-Joo Lee, Young Ho Kim, Ho-Sik Oh, Joong Won Lee
  • Publication number: 20200165342
    Abstract: Provided are CAR-T compositions that are directed to HLA-DR. Certain provided HLA-DR CAR compositions exhibit low affinity for a polymorphic region of HLA-DR of a subject. Various in vitro and in vivo methods and reagents related to HLA-DR CAR-T are also provided. Methods described herein can include, for example, characterization of HLA-DR binding, proliferation of T-cells, as well as prevention and/or therapeutic treatment of cancer using a HLA-DR CAR-T composition provided herein.
    Type: Application
    Filed: February 21, 2018
    Publication date: May 28, 2020
    Inventors: Byoung S. Kwon, Chungyong Han
  • Publication number: 20200138859
    Abstract: The present invention relates to hyaluronic acid-rich node and duct system (HAR-NDS)-derived stem cells, a method for separating the same, and a use thereof and, more specifically, to node and ductal stem cells (NDSCs), which are adult stem cells having an ability to differentiate into HAR-NDS-derived neural cells, and hematopoietic stem cells having an ability to differentiate into blood cells. The present invention is capable of separating, from HAR-NDS, adult stem cells NDSCs and hematopoietic stem cells, which are not easy to obtain from bone marrow, peripheral blood and umbilical cord blood (cord blood), as an alternative source, and thus can be usefully used for treatment of brain diseases, neurological diseases, chronic infectious diseases, cancers, autoimmune diseases, organ regeneration treatments and various intractable diseases.
    Type: Application
    Filed: September 10, 2019
    Publication date: May 7, 2020
    Inventor: Byoung S. Kwon
  • Patent number: 10626183
    Abstract: Provided are IFN-?-Inducible Regulatory T Cell Convertible Anti-Cancer (IRTCA) antibodies and antigen-binding fragment thereof that bind to an activation-inducible TNFR (AITR) polypeptide. Various in vitro and in vivo methods and compositions related to IRTCA antibodies described herein are also provided. Methods include, for example, changing cytokine secretion from T cells in vivo or in vitro and prevention and/or therapeutic treatment of cancer using an IRTCA antibody or fragment thereof.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: April 21, 2020
    Assignee: Eutilex Co., Ltd.
    Inventors: Byoung S Kwon, Seoung-Joo Lee, Joong Won Lee, Seunghyun Lee
  • Patent number: 10570371
    Abstract: Provided is a method for isolating and proliferating autologous cancer antigen-specific CD8+ T cells, and more particularly, a method for selecting an epitope recognized by CD8+ T cells from autologous cancer antigens present in blood of individual cancer patients; and isolating autologous cancer antigen-specific CD8+ T cells by using a peptide of the selected epitope, and a method of massively proliferating CD8+ T cells by using the method. According to the present invention, it is possible to isolate autologous cancer antigen-specific CD8+ T cells by using the peptide of the CD8 T cell epitope of the autologous cancer antigen present in blood of individual cancer patients instead of a heterologous antigen. Therefore, by using T cells recognizing the autologous cancer antigen, it is possible to effectively select and eliminate cancer cells derived from the cancer patient's own cells. Thus, T cells can be applied to treatment and alleviation of cancer diseases without side effects.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: February 25, 2020
    Assignee: Eutilex Co., Ltd.
    Inventors: Byoung S. Kwon, Hyun-Guy Kang, Kwang-Hui Kim, Young-Woo Kim, Young Ho Kim, Byung-Kiu Park, Sang-Yoon Park, Sang-Jae Park, Hyeon-Seok Eom, Ho-Sik Oh, Heon Yoo, Don-Gil Lee, Seung-Hoon Lee, Young-Joo Lee, Jin-Soo Lee, Beom-Kyu Choi
  • Publication number: 20190330358
    Abstract: Provided are IFN-?-Inducible Regulatory T Cell Convertible Anti-Cancer (IRTCA) antibodies and antigen-binding fragment thereof that bind to an activation-inducible TNFR (AITR) polypeptide. Various in vitro and in vivo methods and compositions related to IRTCA antibodies described herein are also provided. Methods include, for example, changing cytokine secretion from T cells in vivo or in vitro and prevention and/or therapeutic treatment of cancer using an IRTCA antibody or fragment thereof.
    Type: Application
    Filed: January 3, 2019
    Publication date: October 31, 2019
    Inventors: Byoung S Kwon, Seoung-Joo Lee, Joong Won Lee, Seunghyun Lee
  • Publication number: 20190233535
    Abstract: Provided are IFN-y-Inducible Regulatory T Cell Convertible Anti-Cancer (IRTCA) antibodies and antigen-binding fragment thereof that bind to an activation-inducible TNFR (AITR) polypeptide. Various in vitro and in vivo methods and compositions related to IRTCA antibodies described herein are also provided. Methods include, for example, changing cytokine secretion from T cells in vivo or in vitro and prevention and/or therapeutic treatment of cancer using an IRTCA antibody or fragment thereof.
    Type: Application
    Filed: January 23, 2019
    Publication date: August 1, 2019
    Inventors: Byoung S Kwon, Seoung-Joo Lee, Joong Won Lee, Seunghyun Lee
  • Patent number: 10233254
    Abstract: Provided is a monoclonal antibody which specifically recognizes B cell lymphoma cells and a use thereof. More specifically, provided are the monoclonal antibody; a pharmaceutical composition for preventing or treating B cell lymphoma including the monoclonal antibody; a composition for diagnosing B cell lymphoma including the monoclonal antibody; a method for providing information for diagnosing B cell lymphoma using the monoclonal antibody; a chimeric antigen receptor (CAR) protein including i) the antibody, ii) a transmembrane domain, and iii) an intracellular signaling domain; a recombinant vector which expresses the CAR protein; a CAR-modified T cell transformed with the recombinant vector; a pharmaceutical composition for preventing or treating B cell lymphoma including the CAR-modified T cell; and an antibody-drug conjugate wherein the monoclonal antibody and a drug are conjugated.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: March 19, 2019
    Assignee: Eutilex Co., Ltd.
    Inventors: Byoung S. Kwon, Kwang-Hui Kim, Young-Ho Kim, Ho-Sik Oh, Don-Gil Lee, Seung-Joo Lee, Beom-Kyu Choi, Insoo Park, Chungyong Han
  • Publication number: 20190071510
    Abstract: Provided are anti-human 4-1BB antibodies and fragments thereof with one or more structural features that are not found in a reference anti-human 4-1BB antibody, where said features may improve certain characteristics of the antibody relative to a reference antibody. Various in vitro and in vivo methods and reagents related to anti-human 4-1BB antibodies described herein are also provided. Methods include, for example, inducing T-cell proliferation, inducing T cell secretion of IFN?, as well as detection, prevention, and/or therapeutic treatment of cancer using an anti-human 4-1BB antibody or fragment thereof.
    Type: Application
    Filed: November 14, 2018
    Publication date: March 7, 2019
    Inventors: Byoung S. Kwon, Seoung-Joo Lee, Young Ho Kim, Ho-Sik Oh, Joong Won Lee