Patents by Inventor Ji Yeon Ahn

Ji Yeon Ahn 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: 11825818
    Abstract: The present invention relates to a method for preparing a large animal model, with peritoneal carcinomatosis, which is an abdominal cavity metastasis of tumor commonly found in advanced or recurrent solid cancer, is induced using a large animal, and the method for preparing a large animal model with peritoneal carcinomatosis comprises injecting a cancer cell line into the abdominal cavity of a piglet in which the immune function is not completed. The method for preparing a large animal model with peritoneal carcinomatosis, when a human-derived immortalized cell line is inoculated into a pig, can overcome xenograft rejection and induce peritoneal carcinomatosis, can use animals with sufficient supply and demand, and can expect the spread of peritoneal carcinomatosis through breeding.
    Type: Grant
    Filed: April 11, 2020
    Date of Patent: November 28, 2023
    Inventors: Hee Seung Kim, Jeong Mook Lim, Ji Yeon Ahn, Na Ra Lee, Eun Ji Lee, Soo Jin Park, Sung Jong Lee
  • Patent number: 11466254
    Abstract: Provided herein are a method of promoting osteogenic differentiation efficiency of a stem cell or of inducing chondrogenic differentiation of a stem cell, comprising treating the stem cell with a culture solution of chicken bone marrow-derived osteochondroprogenitor cells; a method of preventing or treating cartilage damage or a cartilage defect disease comprising administering to a subject in need thereof a composition comprising a differentiation-induced stem cell or differentiated chondrocyte made by said method as an active ingredient; and a method of preventing or treating a bone disease, cartilage damage, or a cartilage defect disease comprising administering to a subject in need thereof, a composition comprising a culture solution or culture concentrate of chicken bone marrow-derived osteochondroprogenitor cells as an active ingredient.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: October 11, 2022
    Assignee: SEOUL NATIONAL UNIVERSITY R & DB FOUNDATION
    Inventors: Jeong Mook Lim, Ji Yeon Ahn
  • Publication number: 20210187035
    Abstract: Provided herein are a method of promoting osteogenic differentiation efficiency of a stem cell or of inducing chondrogenic differentiation of a stem cell, comprising treating the stem cell with a culture solution of chicken bone marrow-derived osteochondroprogenitor cells; a method of preventing or treating cartilage damage or a cartilage defect disease comprising administering to a subject in need thereof a composition comprising a differentiation-induced stem cell or differentiated chondrocyte made by said method as an active ingredient; and a method of preventing or treating a bone disease, cartilage damage, or a cartilage defect disease comprising administering to a subject in need thereof, a composition comprising a culture solution or culture concentrate of chicken bone marrow-derived osteochondroprogenitor cells as an active ingredient.
    Type: Application
    Filed: October 16, 2018
    Publication date: June 24, 2021
    Applicant: SEOUL NATIONAL UNIVERSITY R & DB FOUNDATION
    Inventors: Jeong Mook LIM, Ji Yeon AHN
  • Publication number: 20210180018
    Abstract: Provided is a composition capable of promoting osteogenic differentiation of stem cells, comprising, as active ingredients, a bone and cartilage progenitor cell culture solution and a multilayer graphene film, which promotes the differentiation of stem cells into specific cells, and thus is expected to be variously applicable in the in vivo/in vitro stem cell application fields.
    Type: Application
    Filed: May 14, 2019
    Publication date: June 17, 2021
    Applicants: SEOUL NATIONAL UNIVERSITY R & DB FOUNDATION, BIOGRAPHENE INC.
    Inventors: Jeong Mook LIM, Ji Yeon AHN, Jong Bo PARK, Byung Hee HONG, Woo Sub YANG
  • Publication number: 20210051926
    Abstract: The present invention relates to a method for preparing a large animal model, with peritoneal carcinomatosis, which is an abdominal cavity metastasis of tumor commonly found in advanced or recurrent solid cancer, is induced using a large animal, and the method for preparing a large animal model with peritoneal carcinomatosis comprises injecting a cancer cell line into the abdominal cavity of a piglet in which the immune function is not completed. The method for preparing a large animal model with peritoneal carcinomatosis, when a human-derived immortalized cell line is inoculated into a pig, can overcome xenograft rejection and induce peritoneal carcinomatosis, can use animals with sufficient supply and demand, and can expect the spread of peritoneal carcinomatosis through breeding.
    Type: Application
    Filed: April 11, 2020
    Publication date: February 25, 2021
    Inventors: Hee Seung KIM, Jeong Mook LIM, Ji Yeon AHN, Na Ra LEE, Eun Ji LEE, Soo Jin PARK
  • Publication number: 20210030808
    Abstract: Provided are a culture scaffold for promoting stem cell differentiation comprising a multilayer graphene film, a method of regulating growth and differentiation of a stem cell using the culture scaffold, and a method of preparing the culture scaffold, where the culture scaffold is capable of promoting the osteogenic differentiation of stem cells as a result of laminating a graphene film without comprising an additional substance, and it may be variously applicable to application fields of stem cells in/outside the body.
    Type: Application
    Filed: April 5, 2019
    Publication date: February 4, 2021
    Applicants: Seoul National University R & DB Foundation, BIOGRAPHENE INC.
    Inventors: Byung Hee HONG, Ji Yeon AHN, Jong Bo PARK, Jeong Mook LIM, Woo Sub YANG
  • Patent number: 9447054
    Abstract: Disclosed is an anticancer supplement agent including a benzo[d]oxazole derivative as an effective ingredient. The benzo[d]oxazole derivative, which is a nuclear factor E2-related factor 2 (Nrf2) inhibitor, is capable of inhibiting activity of Nrf2 that induces an antioxidant enzyme to remove reactive oxygen species (ROS) that kills a cancer cell, thereby increasing production of ROS. Therefore, the benzo[d]oxazole derivative can be used as an anticancer supplement agent that shows therapeutic effects in anticancer agent therapy or radiation therapy, and in this regard, the benzo[d]oxazole derivative can overcome tolerance of the cancer cell to anticancer agent therapy or radiation therapy and enhance apoptotic effects on the cancer cell.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: September 20, 2016
    Assignee: KOREA INSTITUTE OF RADIOLOGICAL & MEDICAL SCIENCES
    Inventors: Jie Young Song, Ji Yeon Ahn, In Sung Jung, Saelooom Lee, Arang Son, Ky Youb Nam, Hyun Kyung Choi, Seung Yong Seo, Yuan Yue
  • Publication number: 20150197498
    Abstract: Disclosed is an anticancer supplement agent including a benzo[d]oxazole derivative as an effective ingredient. The benzo[d]oxazole derivative, which is a nuclear factor E2-related factor 2 (Nrf2) inhibitor, is capable of inhibiting activity of Nrf2 that induces an antioxidant enzyme to remove reactive oxygen species (ROS) that kills a cancer cell, thereby increasing production of ROS. Therefore, the benzo[d]oxazole derivative can be used as an anticancer supplement agent that shows therapeutic effects in anticancer agent therapy or radiation therapy, and in this regard, the benzo[d]oxazole derivative can overcome tolerance of the cancer cell to anticancer agent therapy or radiation therapy and enhance apoptotic effects on the cancer cell.
    Type: Application
    Filed: January 7, 2015
    Publication date: July 16, 2015
    Inventors: Jie Young SONG, Ji Yeon AHN, In Sung JUNG, Saelooom LEE, Arang SON, Ky Youb NAM, Hyun Kyung CHOI, Seung Yong SEO, Yuan YUE
  • Publication number: 20150191695
    Abstract: Disclosed are a composition including gelsolin as an effective ingredient for inducing differentiation into a dendritic cell, a method of inducing differentiation by using the composition, and a vaccine composition for treating cancer or an immune-mediated disease. In addition, a composition including gelsolin as an effective ingredient for inducing differentiation into a dendritic cell and a method of inducing differentiation into a dendritic cell by treating an immature dendritic cell with gelsolin are also disclosed. Further, a dendritic cell differentiated by using the method of inducing differentiation into the dendritic cell and a vaccine composition including the dendritic cell as an effective ingredient for treating cancer or an immune-mediated disease are disclosed.
    Type: Application
    Filed: January 7, 2015
    Publication date: July 9, 2015
    Inventors: Jie Young Song, Mi Hyoung Kim, Ji Yeon Ahn, In Sung Jung, Dae Seog Lim