Systematic characterization of AT1 receptor antagonists with label-free dynamic mass redistribution assays

	Systematic characterization of AT1 receptor antagonists with label-free dynamic mass redistribution assays
	Qu, Lala; Wang, Jixia; Hou, Tao; Zhou, Han; Wang, Zhiwei; Zhang, Xiuli; Liang, Xinmiao
刊名	JOURNAL OF PHARMACOLOGICAL AND TOXICOLOGICAL METHODS
	2020
卷号	102
关键词	Angiotensin II type 1 receptor Antagonist Binding property Dynamic mass redistribution assay
英文摘要	Introduction: In the drug discovery field, the binding affinities and binding kinetics of drug candidates are very important. Angiotensin II type 1 (AT1) receptor antagonists, e.g., candesartan, telmisartan, irbesartan, losartan and valsartan, show high affinities and long-lasting bindings to the receptor, making them preferred medications for hypertension treatment. However, the molecular binding properties of AT1 receptor antagonists are controversial. Methods: In this work, we established a profile to study the phenotypic properties of AT1 receptor antagonists with label-free dynamic mass redistribution (DMR) assays in native human cells. With noninvasive features, DMR assay were conducted in multiple formats. Eleven antagonists were systematically evaluated with angiotensin II as an agonist probe in the Hep G2 cell line, which endogenously expresses the AT1 receptor. Results: The IC50 values to the AT1 receptor of individual antagonist varied with different incubation times. The antagonists showed competitive behavior with angiotensin II. Schild analysis was used to analyze the competitive behavior of the antagonist. All of the antagonist showed long-lasting possession of the AT1 receptor, except telmisartan. The systematic evaluation of the antagonists implied that 11 antagonists showed high binding affinity but distinct binding modes to AT1 receptor. Discussion: This study demonstrated that the DMR assay has great potential for determining the pharmacological parameters of ligands. This work may serve as guidance for other receptor and ligand assays.
内容类型	期刊论文
源URL	[http://210.75.249.4/handle/363003/60395]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Qu, Lala,Wang, Jixia,Hou, Tao,et al. Systematic characterization of AT1 receptor antagonists with label-free dynamic mass redistribution assays[J]. JOURNAL OF PHARMACOLOGICAL AND TOXICOLOGICAL METHODS,2020,102.
APA	Qu, Lala.,Wang, Jixia.,Hou, Tao.,Zhou, Han.,Wang, Zhiwei.,...&Liang, Xinmiao.(2020).Systematic characterization of AT1 receptor antagonists with label-free dynamic mass redistribution assays.JOURNAL OF PHARMACOLOGICAL AND TOXICOLOGICAL METHODS,102.
MLA	Qu, Lala,et al."Systematic characterization of AT1 receptor antagonists with label-free dynamic mass redistribution assays".JOURNAL OF PHARMACOLOGICAL AND TOXICOLOGICAL METHODS 102(2020).