Abstract
Considering the prevalence of cardiovascular disease in public health and the
limited validated therapeutic options, this study aimed to find novel
compounds targeting the angiotensin II type 1 receptor, accepted as a
therapeutic target in cardiovascular disease. A small library consisting of
89 compounds from 39 Chinese herbs was profiled using a cell-based calcium
mobilization assay which was developed and characterized for high-throughput
screening. [6]-Gingerol derived from Zingiber officinale Roscoe
(ginger) was identified as a novel angiotensin II type 1 receptor
antagonist, with an IC50 value of 8.173 µM. The hit was further
tested by a specificity assay indicating that it had no antagonistic effects
on other evaluated GPCRs, such as endothelin receptors. The major ingredient
of ginger, [6]-gingerol, could inhibit angiotensin II type 1 receptor
activation, which partially clarified the mechanism of ginger regulating
blood pressure and strengthening heart in the cardiovascular system.
Key words
[6]-gingerol - AT
1 antagonist - calcium assay - high-throughput screening - cardiovascular disease - Chinese herb