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SilencerTM Negative Control No. 1 siRNA (non-related (NR)) siRNA

Company: Thermo Fisher
Catalog#: AM4611
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Measuring Cell Growth and Junction Development in Epithelial Cells Using Electric Cell-Substrate Impedance Sensing (ECIS)
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2020-08-20
[Abstract]  Electric Cell-substrate Impedance Sensing (ECIS) is an automated method that can be used to quantify processes such as cell attachment, growth, migration and barrier functions (i.e., the properties of tight junctions). The method provides simultaneous information on cell number and tight junction function by detecting electric parameters of cells grown on electrodes. Samples are probed with small alternating current (AC) over a range of frequencies, and changes in capacitance and impedance are measured over time. Capacitance reflects the degree of electrode coverage by cells, that correlates with cell number, and can be used to assess cell proliferation or migration. Impedance values inform about barrier function. Obtaining real-time simultaneous information on these parameters ... [摘要]  [摘要 ] 电动细胞-基底阻抗感测(ECIS)是一个自动化的方法,该方法可用于定量如细胞附着,生长,迁移和屏障功能的处理(即, 紧密连接的特性)。该方法通过检测在电极上生长的细胞的电参数,提供有关细胞数量和紧密连接功能的同时信息。用小的交流电(AC)在一定频率范围内探测样品,并随时间测量电容和阻抗的变化。电容反映了细胞对电极的覆盖程度,与细胞数量相关,可用于评估细胞增殖或迁移。阻抗值告知屏障功能。获取有关这些参数的实时同步信息对于该系统而言是独一无二的,对于解决诸如紧密连接蛋白在细胞生长和迁移中的作用等基本问题具有重要价值。该协议描述了使用ECIS来跟踪肾小管上皮细胞中的细胞生长和紧密连接依赖性屏障生成。我们使用这种方法来探索如何耗尽紧密连接蛋白claudin-2如何影响肾小管细胞的生长和屏障功能。在此过程中,将细胞用对照或claudin-2特异性siRNA转染,然后在24小时后铺在电极上。随着单层细胞的发育,ECIS自动收集有关细胞生长和屏障的信息。最初使用ECIS软件对数据进行分析,然后将其导出到图形软件中以进行进一步处理。

[背景 ] 上皮细胞产生以成熟的细胞间连接为特征的单层细胞。来自连接的输入确定细胞行为,包括增殖和迁移。随着连接的发展,由于接触抑制,细胞增殖和迁移减慢,然后停止(McClatchey and ...

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