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Updated: Sep 24, 2025

A Fluorescent Screening Assay for Identifying Modulators of GIRK Channels
Published on: April 24, 2012
Inhibition of human ether-à-go-go-related gene K+ currents expressed in HEK293 cells by three gingerol components
Miaomaio Liu1, Yakun Yang1, Muqing Zhang1
1School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China.
Objectives:
Gingerols are bioactive compounds derived from ginger, our experiment investigates the effects of 6-, 8- and 10-Gin on the human ether-à-go-go-related gene (hERG) K+ channels by using patch clamp technology.
Key Findings:
hERG K+ currents were suppressed by 6-, 8- and 10-Gin in a concentration-dependent manner. The IC50 values of 6-, 8- and 10-Gin were 41.5, 16.1 and 86.5 μM for the hERG K+ currents, respectively. The maximum inhibitory effects caused by 6-, 8- and 10-Gin were 44.3% ± 2.0%, 88.6% ± 1.3% and 63.1% ± 1.1%, respectively, and the effects were almost completely reversible.
Conclusion:
These findings suggest that 8-Gin is the most potent hERG K+ channel inhibitor among gingerol components and may offer a new approach for understanding and treating cancer.
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