Patents by Inventor In-Ja Ryoo

In-Ja Ryoo 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: 20220306612
    Abstract: A benzofuran-based N-acylhydrazone derivative according to the present invention has an excellent anticancer effect while having low toxicity and excellent solubility, and thus a pharmaceutical composition comprising the derivative can be usefully used to prevent or treat a cell proliferative disorder including various cancers.
    Type: Application
    Filed: July 14, 2020
    Publication date: September 29, 2022
    Inventors: Bo Yeon Kim, Nak Kyun Soung, Mija Ahn, Ho Jin Han, In Ja Ryoo, Joonsung Hwang
  • Patent number: 11446281
    Abstract: The present invention relates to a composition for preventing, alleviating or treating inflammatory diseases, comprising, as an active ingredient, an acylhydrazone derivative compound, a stereoisomer thereof or a pharmaceutically acceptable salt thereof. an acylhydrazone derivative compound, a stereoisomer thereof or a pharmaceutically acceptable salt thereof, of the present invention, effectively inhibits inflammatory cytokines and inflammatory signaling pathways, thereby effectively alleviating symptoms of inflammatory diseases such as dermatitis. Therefore, the composition according to the present invention may be effectively used for the prevention, alleviation or treatment of inflammatory diseases.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: September 20, 2022
    Assignee: Korea Research Institute Of Bioscience And Biotechnology
    Inventors: Bo Yeon Kim, Joonsung Hwang, Nak Kyun Soung, Jong Seog Ahn, Kyung Ho Lee, Jiyun Mun, Srinivasrao Ganipisetti, Hyunjoo Cha, Mija Ahn, Hee Gu Lee, Jae-Hyuk Jang, In Ja Ryoo, Sung-Kyun Ko
  • Publication number: 20220151959
    Abstract: A composition containing colchicine and its uses are disclosed. The composition enhances the expression amount of filaggrin that is highly related to the onset of allergic skin diseases, enhances skin moisturizing effects to thereby improve the skin barrier function, and in addition, controls inflammatory responses by allergic skin diseases. Therefore, methods for prevention and/or treatment of allergic skin diseases and/or pruritus cutaneous and skin moisturization and skin condition improvement are disclosed.
    Type: Application
    Filed: February 24, 2020
    Publication date: May 19, 2022
    Applicant: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Bo Yeon KIM, Joonsung HWANG, In Ja RYOO, Nak Kyun SOUNG, Jong Seog AHN, Min Sik WOO, Kyung Ho LEE, Hee Gu LEE, Hyunjoo CHA
  • Publication number: 20210292306
    Abstract: The present invention relates to: an indole derivative, which is a novel cell mitosis inhibitor; a stereoisomer thereof or a pharmaceutically acceptable salt thereof; a use thereof as a therapeutic agent; a composition containing the same and a treatment method using the composition; and a preparation method therefor. According to the present invention, the indole derivative, the stereoisomer thereof or the pharmaceutically acceptable salt thereof, inhibits the tubulin polymerization during mitosis so as to induce apoptosis, and has an excellent anti-cancer effect also in cancer cells having multiple drug resistance.
    Type: Application
    Filed: February 13, 2017
    Publication date: September 23, 2021
    Applicant: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Bo Yeon KIM, Nak Kyun SOUNG, Srinivas Rao GANIPISETTI, Jong Seog AHN, Jae-Hyuk JANG, Sung-kyun KO, In Ja RYOO, Hyunjoo CHA, Joon Sung HWANG, Kyung Ho LEE
  • Publication number: 20210030716
    Abstract: The present invention relates to a composition for preventing, alleviating or treating inflammatory diseases, comprising, as an active ingredient, an acylhydrazone derivative compound, a stereoisomer thereof or a pharmaceutically acceptable salt thereof. an acylhydrazone derivative compound, a stereoisomer thereof or a pharmaceutically acceptable salt thereof, of the present invention, effectively inhibits inflammatory cytokines and inflammatory signaling pathways, thereby effectively alleviating symptoms of inflammatory diseases such as dermatitis. Therefore, the composition according to the present invention may be effectively used for the prevention, alleviation or treatment of inflammatory diseases.
    Type: Application
    Filed: January 11, 2019
    Publication date: February 4, 2021
    Inventors: Bo Yeon KIM, Joonsung HWANG, Nak Hyun SOUNG, Jong Seog AHN, Kyung Ho LEE, Jiyun MUN, Srinivasrao GANIPISETTI, Hyunjoo CHA, Mija AHN, Hee Gu LEE, Jae-Hyuk JANG, In Ja RYOO, Sung-Kyun KO
  • Patent number: 9433607
    Abstract: The present invention relates to ethyl(2-methyl-3{(E)-[(naphtho[2,1-b]furan-2-ylcarbonyl)hydrazono]methyl}-1H-indole-1-yl)acetate, the novel mitosis inhibitor. The said ethyl(2-methyl-3{(E)-[(naphtho[2,1-b]furan-2-ylcarbonyl)hydrazono]methyl}-1H-indole-1-yl)acetate not only induces apoptosis by inhibiting tubulin polymerization in the course of mitosis but also displays an excellent anticancer effect in the multi-drug resistant cancer cells, so that it can be effectively used for the treatment of cell proliferative disease including various cancers.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: September 6, 2016
    Assignee: Korea Research Institute of Bioscience and Biotechnology
    Inventors: Bo Yeon Kim, Krisada Sakchaisri, Sun Ok Kim, Ramegowda Thimmegowda Naraganahalli, Nak Kyun Soung, Jong Seog Ahn, Joonsung Hwang, In Ja Ryoo, Jae-Hyuk Jang
  • Publication number: 20150182502
    Abstract: The present invention relates to ethyl(2-methyl-3{(E)-[(naphtho[2,1-b]furan-2-ylcarbonyl)hydrazono]methyl}-1H-indole-1-yl)acetate, the novel mitosis inhibitor. The said ethyl(2-methyl-3{(E)-[(naphtho[2,1-b]furan-2-ylcarbonyl)hydrazono]methyl}-1H-indole-1-yl)acetate not only induces apoptosis by inhibiting tubulin polymerization in the course of mitosis but also displays an excellent anticancer effect in the multi-drug resistant cancer cells, so that it can be effectively used for the treatment of cell proliferative disease including various cancers.
    Type: Application
    Filed: March 6, 2015
    Publication date: July 2, 2015
    Applicant: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Bo Yeon Kim, Krisada Sakchaisri, Sun Ok Kim, Ramegowda Thimmegowda Naraganahalli, Nak Kyun Soung, Jong Seog Ahn, Joonsung Hwang, In Ja Ryoo, Jae-Hyuk Jang
  • Publication number: 20070128136
    Abstract: The present invention relates to a melanin biosynthesis inhibitor containing terrein compound as an effective ingredient. The terrein compound can be easily separated from Penicillium sp KCTC 26245, a fungal strain inhabited in domestic soil. It does not directly inhibit tyrosinase but inhibits the expression of MITF (microphthalmia-associated transcription factor) by activating ERK (extracellular signal-regulated kinase) in melanin chromatocytes to give whitening effect. So, the melanin biosynthesis inhibiting effect of the compound is much greater than that of any other conventional inhibitors, and further the effect can be raised when the compound is used together with other inhibitors, owing to their different mechanisms. Thus, the compound of the present invention can be effectively used as a skin trouble treating agent, a skin whitening agent and a browning inhibitor.
    Type: Application
    Filed: October 19, 2004
    Publication date: June 7, 2007
    Inventors: Ick-Dong Yoo, Won-Gon Kim, In-Ja Ryoo, Jong-Pyung Kim, Sangku Lee, Seo-Hyoung Park, Dong-Seok Kim, Kyoung-Chan Park