Novel cell-free high-throughput screening method for pharmacological tools targeting K+ channels.

Novel cell-free high-throughput screening method for pharmacological tools targeting K+ channels.
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针对 K 通道的药理学工具的新型无细胞高通量筛选方法。

DOI:
10.1073/pnas.1602815113
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发表时间:
2016
影响因子:
11.1
通讯作者:
MacKinnon,Roderick
MacKinnon,Roderick
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Su,Zhenwei;Brown,EmilyC;Wang,Weiwei;MacKinnon,Roderick

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K+通道是一个由近80个成员组成的超家族,控制细胞兴奋性、离子稳态和多种形式的细胞信号传导。它们的功能障碍导致许多疾病,包括神经元紊乱、心律失常、糖尿病和哮喘。在这里,我们提出了一种新的脂质体通量测定(LFA),适用于大多数K+通道。它是鲁棒的、低成本的和高吞吐量的。使用LFA,我们对三种不同的K+通道进行了小分子筛选,并确定了新的激活剂和抑制剂,用于通道功能的生物学研究和药物开发。我们进一步设计了一个hERG(人类ether-à-go-go相关基因)通道,当用于LFA时,它提供了一种高灵敏度(50种hERG敏感药物的零假阴性)和高特异性(50种hERG不敏感药物的零假阳性),低成本的hERG安全性测定。
K+channels, a superfamily of ∼80 members, control cell excitability, ion homeostasis, and many forms of cell signaling. Their malfunctions cause numerous diseases including neuronal disorders, cardiac arrhythmia, diabetes, and asthma. Here we present a novel liposome flux assay (LFA) that is applicable to most K+channels. It is robust, low cost, and high throughput. Using LFA, we performed small molecule screens on three different K+channels and identified new activators and inhibitors for biological research on channel function and for medicinal development. We further engineered a hERG (human ether-à-go-go-related gene) channel, which, when used in LFA, provides a highly sensitive (zero false negatives on 50 hERG-sensitive drugs) and highly specific (zero false positives on 50 hERG-insensitive drugs), low-cost hERG safety assay.
DOI: 10.1038/nprot.2014.173
发表时间: 2014-11
期刊: Nature protocols
影响因子: 14.8
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发表时间: 2012
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