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Cell Meter Annexin V凋亡检测试剂盒 橙色荧光 适合流式细胞检测

英文名称:Cell Meter™ Annexin V Binding Apoptosis Assay Kit *Orange Fluorescence Optimized for Flow Cytometry*
产品参数
Ex (nm)557Em (nm)570
分子量-溶剂-
存储条件-
产品概述

我们的Cell Meter 检测试剂盒是一套用于检测细胞生存力的工具,有多种参数可用于检测细胞活力。 该特定试剂盒旨在通过测量磷脂酰丝氨酸(PS)的转运来检测细胞凋亡。 在细胞凋亡中,PS转移到质膜的外部小叶。 磷脂酰丝氨酸在细胞表面的出现是细胞凋亡初始/中间阶段的普遍指标,可以在观察形态变化之前进行检测。该试剂盒使用与PS特异性结合的荧光膜联蛋白V。 已经证明膜联蛋白V缀合物选择性结合PS。 使用带有575/26 nm发射滤光片组(PE通道)的流式细胞仪,优化了该特定的测定试剂盒以监测细胞凋亡。百萤生物是AAT Bioquest的中国代理商,为您提供优质的Cell Meter Annexin V凋亡检测试剂盒。

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适用仪器


流式细胞仪  
Ex: 488 nm or 532 nm
Em: 575/26 nm 
通道: PE 通道
实验方案

样品实验方案

简要概述

  1. 用测试化合物制备细胞(200 µL /样品)
  2. 添加膜联蛋白V-iFluor 555测定溶液
  3. 在室温下孵育30至60分钟
  4. 使用带有575/26 nm滤光片(PE通道)的流式细胞仪或带有Cy3滤光片组的荧光显微镜分析细胞

 

实验步骤

1.用膜联蛋白V-iFluor 555准备和孵育细胞:

1.1用测试化合物处理细胞一段时间(对于用星形孢菌素处理过的Jurkat细胞,需要4-6小时)以诱导细胞凋亡。

1.2离心细胞以获得1-5×105细胞/管。

1.3将细胞重悬于200 µL分析缓冲液(组分B)中。

1.4向细胞中加入2 µL Annexin V-iFluor 555(组分A)。

1.5避光保存,于室温下孵育30至60分钟。

1.6在使用流式细胞仪或荧光显微镜分析细胞之前,添加300 µL分析缓冲液(组分B)以增加体积。

1.7使用带有575/26 nm滤光片(PE通道)的流式细胞仪或带有Cy3滤光片组的荧光显微镜检测荧光强度。

2.通过使用流式细胞仪进行分析:

2.1使用带有575/26 nm滤光片的流式细胞仪(PE通道)定量Annexin V- iFluor 555结合物。

3.通过使用荧光显微镜进行分析:

3.1孵育后用移液管吸移细胞悬液,用测定缓冲液冲洗1-2次,然后用测定缓冲液重悬细胞。

3.2将细胞添加到载玻片盖玻片的载玻片上。注意:对于贴壁细胞,建议直接在盖玻片上生长细胞。与Annexin V-iFluor 555孵育后,用测定缓冲液冲洗1-2次,然后将测定缓冲液加到盖玻片上。将玻片上的盖玻片倒置并可视化细胞。与膜联蛋白V-iFluor 555孵育后,还可以将细胞固定在2%甲醛中,并在显微镜下观察。

3.3在荧光显微镜下使用Cy3滤光片组,用Annexin V-iFluor 555分析凋亡细胞。将Nuclear Red DCS1(#17552)添加到细胞后,使用Cy5通道测量细胞活力。质膜上的橙色染色表明膜联蛋白V-iFluor 555与细胞表面的PS结合。

 

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