CellCountingKit-8细胞增殖毒性检测试剂盒CCK-8(CCK8)货号:CK04细胞增殖-毒性检测试剂盒CCK-8(CCK8)CellCountingKit-8商品信息储存条件:0-5度保存运输条件:室温
特点:
●CCK-8为本司DOJINDO最早研发
●高分文献超10000+篇
●试剂盒稳定性高。
性能简介
CellCountingKit-8是用于化学药物等对细胞增殖或毒性实验时进行细胞计数的试剂盒。试剂盒中使用高灵敏度的新型水溶性四唑盐WST-8甲臜染料作为显色底物,与传统的细胞计数试剂盒相比,灵敏度大幅度的提高。WST-8被细胞内的脱氢酶还原产生水溶性的甲臜染料。通过直接测量甲臜染料(450nm)的吸光度,即可测出活细胞的数量。细胞数量与甲臜染料成正比关系。同时试剂盒为配置好的1瓶溶液,易于使用。
产品特点
1)对比[3H]法,无需放射性同位素。
2)使用水溶性四唑盐与水溶性甲臜染料,因此无需DMSO换液操作步骤。(如MTT分析等需要)
3)与其他水溶性四唑盐法(XTT,MTS)相比,灵敏度更高的同时毒性更低。
4)试剂盒为1瓶装,无需提前配置,无需准备其他试剂。
5)试剂盒稳定性高。
6)试剂可以与酚红同时使用。
原理
CellCountingKit-8(CCK-8)包含了Dojindo开发的水溶性四唑盐—WST-8和电子载体(1-MethoxyPMS)。由于WST-8具有高水溶性,它存在于细胞外而不渗透活细胞膜,通过1-MethoxyPMS接受乳酸脱氢酶的辅酶NADH的电子而被还原,生成水溶性WST-8甲臜染料(最大吸收波长450nm:详见下方吸收光谱)。
产品概述
CellCountingKit-8(CCK-8)利用了Dojindo开发的水溶性四唑盐—WST-8(2-(2-甲氧基-4-硝苯基)-3-(4-硝苯基)-5-(2,4-二磺基苯)-2H-四唑单钠盐),它在电子载体1-MethoxyPMS存在的情况下能够被还原成水溶性的橙黄色甲臜。CCK-8溶液可以直接加入到细胞样品中,无需配制。CCK-8法是用于测定细胞增殖或毒性实验中活细胞数目的一种高灵敏度,无放射性的比色检测法。WST-8被细胞内脱氢酶氧化还原后生成的橙黄色甲臜能够溶解在培养基中,生成的甲臜物的数量与活细胞数量成正比。
操作步骤
本试剂盒测定方法简单,只需一瓶试剂即可操作,无需二次配制工作液,从而提高实验者的效率。
CCK-8使用例
细胞增殖实验(左)与细胞毒性实验(右)
CCK-8与LDH
CellCountingKit-8与CytotoxicityLDHAssayKit-WST同时检测细胞毒性
检测药物:MitomycinC
细胞:HeLa
培养基:MEM,10%FBS
孵育条件:37℃,5%CO2,48小时
检测波长:CellCountingKit-8(450nm),CytotoxicityLDHAssayKit-WST(490nm)
使用MitomycinC检测检测HeLa细胞毒性。通过使用CellCountingKit-8和CytotoxicityLDHAssayKit-WST[货号:CK12]两种方法检测。CellCountingKit-8以细胞活性为指标,CytotoxicityLDHAssayKit-WST以游离的LDH为指标,实验证实两种指标检测存在差异性。二者联用,能更全面的表征细胞毒性。
WST-8甲臜染料
WST-8甲臜染料吸光度与续细胞数量的关系
培养基:MEM,10%FBS(HeLa),RPM1640(HL60)
孵育条件:37℃,5%CO2,2hr(HeLa、HL60)
检测试剂:CellCountingKit-8
(●)450nm,XTT(◆)450nm,MTS
(▲)490nm,MTT(■)570nm
将HeLa细胞和HL60细胞以不同的细胞数接种到96孔板中,按孵育条件处理后加入以上每种试剂测定吸光度。根据细胞数量增加吸光度。CCK-8灵敏度、线性范围优于以上其他方法。
试剂稳定性比较
CellCountingKit-8可冷藏保存1年以上,避免试剂浪费!
试剂毒性评价
试剂本身对细胞毒性的比较
HeLa细胞在96孔板中孵育(5000个/孔)。在CO2培养箱中开始显色反应,每隔3、6、24小时在显微镜下观察细胞形态。CellCountingKit-8在24小时后细胞形态没有改变。在使用药物进行细胞毒性试验时,应选择测量试剂本身对细胞毒性影响更小的试剂。
3D培养检测
3D培养检测细胞毒性指南,
详见OECDGuidelinesfortheTestingofChemicals,Section4TestNo.492
常见问题Q&A
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