Abstract: The present invention relates to a real-time fluorescence imaging sensor for measuring glutathione in cell organelles and a method for fabricating the same. More specifically, the present invention relates to a novel compound for measuring glutathione in cell organelles, a method for preparing the novel compound, a real-time fluorescence imaging sensor for measuring glutathione in cell organelles, which comprises the novel compound, a method for fabricating the imaging sensor, and a method of measuring glutathione in cell organelles by use of the imaging sensor. When the composition comprising the compound according to the present invention is used, it can measure the antioxidant activity of the organelle mitochondria or Golgi apparatus in living cells, particularly stem cells, and can screen highly active stem cells based on the results obtained by measuring the antioxidant activity of the cell organelle.
Type:
Grant
Filed:
August 23, 2018
Date of Patent:
October 18, 2022
Assignee:
CELL2IN, INC.
Inventors:
Heun Soo Kang, Hye Mi Kim, Ji Eun Song, Myoung Jin Kim, Ki Hang Choi
Abstract: The present invention relates to a fluorescence sensor capable of real-time imaging for measuring a cellular thiol level. The present invention reveals that the fluorescence intensity of the fluorescent real-time SH group-tracer (FreSH-Tracer) of the present invention increases or decreases continuously, ratiometrically or reversibly depending on the thiol level in living cells, and thus can be usefully used as a biosensor which is remarkably susceptible to quantitative or qualitative real-time detection of the cellular thiol level in living cells.
Type:
Grant
Filed:
January 2, 2019
Date of Patent:
April 14, 2020
Assignees:
Cell2In, Inc., Korea University Reserach and Business Foundation, SNU R&DB Foundation
Inventors:
In-Gyu Kim, Ki Hang Choi, Eui Man Jeong, Heun Soo Kang
Abstract: The present invention relates to a fluorescence sensor capable of real-time imaging for measuring a cellular thiol level. The present invention reveals that the fluorescence intensity of the fluorescent real-time SH group-tracer (FreSH-Tracer) of the present invention increases or decreases continuously, ratiometrically or reversibly depending on the thiol level in living cells, and thus can be usefully used as a biosensor which is remarkably susceptible to quantitative or qualitative real-time detection of the cellular thiol level in living cells.
Type:
Grant
Filed:
November 18, 2015
Date of Patent:
February 26, 2019
Assignees:
CELL2IN, INC., SNU R&DB FOUNDATION, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
Inventors:
In-Gyu Kim, Ki Hang Choi, Eui Man Jeong, Heun Soo Kang