A resazurin-based cell viability assay of mitochondrial DNA-depleted glioma C6ρ0 cells

Youcai JIN; Yiming ZHANG; Ji LI; Honglun WANG; Bo BAI

doi:10.16016/j.1000-5404.201811221

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A resazurin-based cell viability assay of mitochondrial DNA-depleted glioma C6ρ0 cells

Basic Medicine | 更新时间：2026-01-09

- A resazurin-based cell viability assay of mitochondrial DNA-depleted glioma C6ρ0 cells
- Journal of Third Military Medical University Vol. 41, Issue 12, Pages: 1136-1141(2019)
- 作者机构：
  
  1.810008 西宁，中国科学院西北高原生物研究所，藏药研究重点实验室
  2.810008 西宁，青海师范大学化学化工学院环境科学系
  3.100049 北京，中国科学院大学
  4.264005 山东烟台，烟台大学生命科学学院线粒体与健康衰老研究中心
- 作者简介：
- 基金信息：
  
  Supported by the Strategic Leading Science and Technology Project of Chinese Academy of Sciences Class A(XDA12040320)
- DOI：10.16016/j.1000-5404.201811221
  CLC： R329-33;R730.264;R914.4
- Received：29 November 2018，
  
  Revised：2019-01-14，
  
  Published：30 June 2019
- 稿件说明：
移动端阅览
Youcai JIN, Yiming ZHANG, Ji LI, et al. A resazurin-based cell viability assay of mitochondrial DNA-depleted glioma C6ρ0 cells[J]. Journal of Third Military Medical University, 2019, 41(12): 1136-1141.
DOI：

Youcai JIN, Yiming ZHANG, Ji LI, et al. A resazurin-based cell viability assay of mitochondrial DNA-depleted glioma C6ρ0 cells[J]. Journal of Third Military Medical University, 2019, 41(12): 1136-1141. DOI： 10.16016/j.1000-5404.201811221.

摘要

目的

建立以刃天青为氧化还原指示剂测定mtDNA被完全清除的大鼠胶质瘤C6细胞(C6ρ0)增殖及活力的方法，并对其有效性进行验证。

方法

取对数生长期的C6ρ0细胞，采用刃天青法比较不同细胞数量、刃天青浓度、孵育时间对荧光强度的影响，优化测定C6ρ0细胞活力的条件。比较MTT法和刃天青法测定C6ρ0和C6细胞活力的灵敏性，并以天然化合物熊果酸对C6ρ0和C6细胞活力的影响对该方法进行验证。

结果

C6ρ0细胞数为0~30 000/孔，25 μg/mL刃天青培养基避光孵育1~4 h，细胞数量与荧光强度呈良好线性关系，灵敏性高于MTT法。熊果酸0~50 μmol/L对C6ρ0和C6细胞具有增殖抑制作用，且增殖抑制率差异有统计学意义(

0.05)，IC

分别为20.82、14.62 μg/mL。

结论

刃天青法灵敏、简单、安全无毒、经济便宜、重复性好，特别适用于生长代谢缓慢的细胞系，可用于其细胞增殖测定、活力分析及化合物细胞毒的高通量筛选。

Abstract

Objective

To establish a method for determining the cell viability of mitochondrial DNA (mtDNA)-depleted C6 cells (C6ρ0) using resazurin as the indicator of redox.

Methods

We performed a systematic analysis to determine whether C6ρ0 cells were able to reduce resazurin and whether there was a linear correlation between resazurin reduction and cell viability. The conditions of the resazurin assay were optimized by evaluating the fluorescence intensities in cell cultures with different cell numbers

varying concentrations of resazurin

and after different incubation time. This resazurin assay was assessed for its sensitivity in detecting the viability of C6ρ0 and C6 cells in comparison with MTT assay.

Results

In resazurin assay

an optimal linear relationship between the cell number and the fluorescent intensity was maintained when the cell density was 0~30 000 per well and the cells were incubated in a 96-well plate with 25 μg/mL resazurin in the dark for 1 to 4 h at 37 ℃ with 5% CO

. In the cytotoxicity test of ursolic acid using resazurin assay

ursolic acid significantly inhibited the proliferation of C6ρ0 and C6 glioma cells (

0.05) with IC

values of 20.82 μg/mL and 14.62 μg/mL

respectively.

Conclusion

The resazurin assay allows sensitive

nontoxic and cost-effective determination of the cell number of mtDNA-depleted cells

and can also be used for cell proliferation and viability assessment

with high-throughput screening of cytotoxic compounds.

关键词

Keywords

references

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