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Ultra Pure Grade Carbon Dioxide, Size 200 Cylinder, CGA-320

Company: Airgas
Catalog#: CD UP200
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High-throughput YO-PRO-1 Uptake Assay for P2X7 Receptors Expressed in HEK Cells
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2018-07-20
[Abstract]  P2X7 receptors are extracellular ATP-gated ion channels that play broad physiological and pathological roles in animals (Sluyter, 2017). Activation of P2X7 receptors lead to the opening of membrane channels permeable for small cations like Na+ and Ca2+ as well as fluorescent dyes such as YO-PRO-1 (Alves et al., 2014). Taking advantage of this dye-permeability, YO-PRO-1 uptake assays have been widely used to probe P2X7 receptor activity (Surprenant et al., 1996; Rassendren et al., 1997; Karasawa et al., 2017). Here we describe a step by step protocol for a high-throughput YO-PRO-1 uptake assay using HEK293 cells expressing P2X7 receptors. This 3-day protocol is particularly suited for examining effects of small molecules and ... [摘要]  P2X7受体是细胞外ATP门控离子通道,在动物中发挥广泛的生理和病理作用(Sluyter,2017)。 P2X7受体的激活导致膜通道的开放可渗透小阳离子如Na + 和Ca 2 + 以及荧光染料如YO-PRO-1(Alves) et al。,2014)。 利用这种染料渗透性,YO-PRO-1摄取试验已被广泛用于探测P2X7受体活性(Surprenant et al。,1996; Rassendren et al。 ,1997; Karasawa et al。,2017)。 在这里,我们描述了使用表达P2X7受体的HEK293细胞进行高通量YO-PRO-1摄取测定的逐步方案。 这个为期3天的方案特别适用于检查小分子和突变对P2X7受体功能的影响。 该协议改编自我们之前发表的论文(Karasawa和Kawate,2016)。

【背景】P2X7受体打开可渗透阳离子的膜通道(Surprenant et al。,1996; Sluyter,2017)。虽然电生理学仍然是量化P2X7受体活性的金标准,但这种专门技术可能并不容易获得。此外,电生理学不适合高通量筛选,因为每次记录需要大量的时间和操作。因此,荧光分子的摄取是一种广泛使用的替代方法,特别是用于筛选多种条件/突变体(Cankurtaran-Sayar et al。,2009; Qu et al。 ...

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