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红色荧光示踪探针 CytoTrace Red CMTPX

英文名称:CytoTrace™ Red CMTPX
产品参数
Ex (nm)-Em (nm)-
分子量686.25溶剂DMSO
存储条件在零下15度以下保存, 避免光照
产品概述

产品货期

咨询

 

产品优势

荧光标记可持续至少72小时,具有理想的细胞示踪特性

 

适用范围

用于细胞示踪

 

产品介绍

CytoTrace™ Red CMTPX 化学性质与CellTracker™ CMTPX相同,可自由穿过细胞膜进入细胞内,并在细胞内转化为不可透过细胞膜的产物。该染料能在活细胞中保留多代,可传递至子代细胞,但不会扩散至相邻细胞。

CytoTrace™ Red CMTPX 染料的荧光标记可持续至少72小时,具有理想的细胞示踪特性。此外,Red CMTPX染料的激发和发射光谱与绿色荧光蛋白(GFP)光谱能很好地分开,适用于多色荧光标记实验

实验方案

操作步骤

本方案为通用指导,需根据具体实验需求调整

1.准备2-10 mM DMSO储备溶液

  • 产品#22014:向50 μg试剂瓶中加入45 μL DMSO,配制成2 mM储备液(1 mg/mL≈1.8 mM)

  • 产品#22015:向50 μg试剂瓶中加入36 μL DMSO,配制成2 mM储备液(1 mg/mL≈1.46 mM)

  • 产品#22016:加入153 μL DMSO配制成10 mM储备液(1 mg/mL≈1.53 mM)

  • 产品#22017:加入215 μL DMSO配制成10 mM储备液(1 mg/mL≈2.15 mM)

  • 产品#22020:将4.2 mg试剂溶于1 mL DMSO配制成10 mM储备液(1 mg/mL≈2.4 mM)

注意:储备液需现配现用,剩余溶液应分装避光保存于<-20°C,避免反复冻融。

 

2.配制工作液

使用前将储备液用HHBS缓冲液(含20 mM Hepes,pH 7.0)或自选缓冲液稀释至1-20 μM,涡旋混匀。

3.用流式细胞仪或荧光显微镜分析细胞:

3.1用测试化合物处理细胞所需的时间。

3.2离心细胞,每管得到2-10 x105细胞。

3.3用500 μL工作液重悬细胞(来自步骤2)。

3.4将细胞与染料溶液在室温或37° C下避光放置15至30分钟。

3.5从细胞中除去染料工作溶液,用HHBS或您选择的缓冲液洗涤细胞。将细胞重悬于500 µL预热的HHBS或培养基中,每管可得到2-10 x 10 5个细胞。

3.6用流式细胞仪(FL1通道) 或荧光显微镜监测Ex / Em = 490/520 nm处的荧光变化。

细菌细胞染色

推荐将储备液以1:800比例稀释于经测试菌预培养的营养肉汤中(新鲜肉汤或PBS也可用)。菌悬液需用PBS稀释至10⁵-10⁷个/mL,染色方法:将1 mL菌液过0.45 μm滤膜(25mm)后真空抽滤,加入1 mL染料工作液,室温避光孵育5-10分钟,即可对细菌染色。

 

试剂应用文献

The pronounced cytotoxic effects of chimeric antigen receptor T cells targeting B7-H3 in organoids and liver xenografts derived from colorectal cancer patients: Translational Therapeutics
Authors: Sheng, Yuling and Yan, Li and Liu, Qi and Peng, Yifan and Tan, Jingyun and Li, Wenhua and Mao, Wei and Wei, Wenqing and Chang, Yanyun and Cao, Linlin and others,
Journal: British Journal of Cancer (2025): 1--10
 
A Microfluidic System for Real-Time Monitoring and In Situ Metabolite Detection of Plasma-Enhanced Wound Healing
Authors: Gao, Zujie and Xu, Jinlong and Zhao, Hengxin and Zheng, Xiaobing and Lyu, Zijian and Liu, Qiwei and Chen, Hao and Zhang, Yu and Li, He-Ping and Li, Yongjian
Journal: Biomolecules (2025): 1077
 
Alvespimycin is identified as a novel therapeutic agent for diabetic kidney disease by chemical screening targeting extracellular vesicles
Authors: Fujimoto, Daisuke and Umemoto, Shuro and Mizumoto, Teruhiko and Kanki, Tomoko and Hata, Yusuke and Nishiguchi, Yoshihiko and Date, Ryosuke and Zhang, Jingxuan and Kakizoe, Yutaka and Izumi, Yuichiro and others,
Journal: Scientific Reports (2025): 14436
 
Recipient tissue microenvironment determines developmental path of intestinal innate lymphoid progenitors
Authors: Clark, Paula A and Gogoi, Mayuri and Rodriguez-Rodriguez, Noe and Ferreira, Ana CF and Murphy, Jane E and Walker, Jennifer A and Crisp, Alastair and Jolin, Helen E and Shields, Jacqueline D and McKenzie, Andrew NJ
Journal: Nature Communications (2024): 7809
 
Leveraging Cell Migration Dynamics to Discriminate Between Senescent and Presenescent Human Mesenchymal Stem Cells
Authors: Amiri, Farshad and Mistriotis, Panagiotis
Journal: Cellular and Molecular Bioengineering (2024): 1--15