COMPOSITION AND METHOD FOR MEASURING THALLIUM INFLUX AND EFFLUX

    公开(公告)号:US20230120665A1

    公开(公告)日:2023-04-20

    申请号:US17816043

    申请日:2022-07-29

    Abstract: The present invention relates to methods for detecting the activity of an ion channel in a cell. The methods comprise providing a loading buffer solution to a cell that has an ion channel. The loading buffer comprises at least one thallium indicator (e.g., an environmentally sensitive, luminescent dye) and a physiological concentration of chloride ions. The methods further comprise providing a stimulus buffer to the cell, wherein the stimulus buffer comprises thallium (e.g., thallium ions). Providing the stimulus buffer causes thallium influx into the cell through the ion channel. After providing the stimulus buffer, the luminescence (e.g., fluorescence) of the dye in the cell is detected. The luminescence of the dye can change in the presence or absence of thallium. The methods may be used to measure influx or efflux of thallium through an ion channel.

    Colorimetric Labeling and Detection Methods and Compositions

    公开(公告)号:US20190154696A1

    公开(公告)日:2019-05-23

    申请号:US15753454

    申请日:2016-08-30

    Abstract: The present disclosure provides methods, compositions and kits for measuring cellular nascent nucleic acid synthesis by colorimetric labeling of nucleic acid. The nucleic acid synthesis can be measured as cell proliferation, DNA or RNA synthesis, gene expression or apoptosis. Additionally, these methods may be used to screen compounds for their effect on cellular proliferation by treating cells or an organism with the test compound simultaneous to or before treatment with a competitive nucleoside analog.

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