Patents by Inventor Sangmi Chung

Sangmi Chung 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: 20240052306
    Abstract: Enhanced methods for the generation of medial ganglionic eminence (MGE) cells from pluripotent stem cells are provided that involve an additional step of contacting the cells with an activator of FGF8 signaling while differentiating Pax6+ cells progenitor cells into MGE cells with an activator of sonic hedgehog, and optionally a Wnt inhibitor. The activator of FGF8 signaling shifts the differentiation of the population of cells to NKX2.1+MGE cells, rather than to CopuTFII+ caudal ganglionic eminence (CGE) cells. Methods for treatment of neurological disorders, such as epilepsy, by transplant of MGE cells, or GABAergic interneurons derived from human pluripotent stem cells, into a subject in need of treatment are also provided. Human pluripotent stem cell derived MGE cells when transplanted successfully suppress spontaneous seizures, e.g. in epilepsy.
    Type: Application
    Filed: August 15, 2023
    Publication date: February 15, 2024
    Inventor: Sangmi Chung
  • Patent number: 11767507
    Abstract: Enhanced methods for the generation of medial ganglionic eminence (MGE) cells from pluripotent stem cells are provided that involve an additional step of contacting the cells with an activator of FGF8 signaling while differentiating Pax6+ cells progenitor cells into MGE cells with an activator of sonic hedgehog, and optionally a Wnt inhibitor. The activator of FGF8 signaling shifts the differentiation of the population of cells to NKX2.1+ MGE cells, rather than to CopuTFII+ caudal ganglionic eminence (CGE) cells. Methods for treatment of neurological disorders, such as epilepsy, by transplant of MGE cells, or GABAergic interneurons derived from human pluripotent stem cells, into a subject in need of treatment are also provided. Human pluripotent stem cell derived MGE cells when transplanted successfully suppress spontaneous seizures, e.g. in epilepsy.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: September 26, 2023
    Assignee: The McLean Hospital Corporation
    Inventor: Sangmi Chung
  • Publication number: 20210340502
    Abstract: The present disclosure provides populations of synchronized post-mitotic migratory cortical interneurons (cINS) derived from pluripotent stem cells and cell culture methods for generating said populations of cINs. The disclosure also provides efficient methods for cryopreservation of the derived cINs.
    Type: Application
    Filed: September 26, 2019
    Publication date: November 4, 2021
    Inventor: Sangmi Chung
  • Patent number: 9750768
    Abstract: Provided are methods of isolating a novel cell population of midbrain dopaminergic neuronal progenitor cells derived from stem cells using a novel combination markers. The cell population may be used for cell therapies for the treatment of Parkinson's disease and as substrates in pharmacological assays.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: September 5, 2017
    Assignee: THE MCLEAN HOSPITAL CORPORATION
    Inventors: Kwang-Soo Kim, Sangmi Chung
  • Publication number: 20160272940
    Abstract: Enhanced methods for the generation of medial ganglionic eminence (MGE) cells from pluripotent stem cells are provided that involve an additional step of contacting the cells with an activator of FGF8 signaling while differentiating Pax6? cells progenitor cells into MGE cells with an activator of sonic hedgehog, and optionally a Wnt inhibitor. The activator of FGF8 signaling shifts the differentiation of the population of cells to NKX2.1+MGE cells, rather than to CopuTFII+ caudal ganglionic eminence (CGE) cells. Methods for reatment of neurological disorders, such as epilepsy, by transplant of MGE cells, or GABAergic interneurons derived from human pluripotent stem cells, into a subject in need of treatment are also provided. Human pluripotent stem cell derived MGE cells when transplanted successfully suppress spontaneous seizures, e.g. in epilepsy.
    Type: Application
    Filed: November 5, 2014
    Publication date: September 22, 2016
    Applicant: THE MCLEAN HOSPITAL CORPORATION
    Inventor: Sangmi CHUNG
  • Publication number: 20140199274
    Abstract: Provided are methods of isolating a novel cell population of midbrain dopaminergic neuronal progenitor cells derived from stem cells using a novel combination markers. The cell population may be used for cell therapies for the treatment of Parkinson's disease and as substrates in pharmacological assays.
    Type: Application
    Filed: May 18, 2012
    Publication date: July 17, 2014
    Applicant: THE MCLEAN HOSPITAL CORPORATION
    Inventors: Kwang-Soo Kim, Sangmi Chung
  • Publication number: 20130052268
    Abstract: The present invention relates to methods for producing neural cells from progenitor or stem cells by activating both the Wnt1-Lmx1a/Lmx1b and the SHH-FoxA2 signaling pathways by, for example, increasing the biological activity of one or more of Wnt1, Lmx1a, Lmx1b, Otx2 and Pitx3 and one or more of SHH, FoxA2 and Nurr1 in the progenitor or stem cells including embryonic stem cells and iPS cells. Such cells may be used for the treatment of Parkinson's disease. The invention further relates to methods for treating Parkinson's disease by increasing the biological activity of one or more of Wnt1, Lmx1b, Lmx1b, Otx2 and Pitx3 and one or more of SHH, FoxA2 and Nurr1 in the midbrain of a patient. In particular, the biological activity of the proteins can be increased by virtue of a cell penetrating peptide fused to the proteins or by transfecting RNAs encoding the proteins such that the host chromosomal DNAs remain intact.
    Type: Application
    Filed: June 1, 2010
    Publication date: February 28, 2013
    Applicant: THE MCLEAN HOSPITAL CORPORATION
    Inventors: Sangmi Chung, Kwang-Soo Kim