Related Experiment Video
Updated: Jul 30, 2026

Use of Frozen Tissue in the Comet Assay for the Evaluation of DNA Damage
Published on: March 24, 2020
Studying the mixture effects of brominated flame retardants and metal ions by comet assay
Biyan Wang1, Haiyan Wang2, Daxiong Han3
1School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China; Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China.
Abstract:
This study was designed to evaluate the sensitivities of diverse cell lines on DNA damage effects and genotoxic effects of three brominated flame retardants (BFRs) and three metal ions (Cu2+, Cd2+, Hg2+) by comet assay. First, THP-1 was identified as the most sensitive cell line in terms of DNA damage among 11 kinds of cells screened. Accordingly, the THP-1 cell line was used as a model in subsequent single/combined genotoxicity tests. Single exposure tests to BFRs or metal ions revealed that the DNA damage effects increased with increasing exposure concentration. In combined exposure tests, BFRs (at concentrations of 1/2 EC50) were deployed in combination with different concentrations of Cu2+, Cd2+, or Hg2+. The results showed that the % tail DNA values were significantly increased by most mixtures. Our findings on combined toxic effects by comet assay provide valuable information for setting valid environmental safety evaluation standards.
More Related Videos
04:53Author Spotlight: Advances in Evaluating Human Lung Epithelial Cells' Response to Metal-Organic Frameworks
Published on: May 26, 2023
04:36Comet Assay to Quantify DNA Damage in FLT3 Mutant-expressing 32D Cells after Exposure to Type I and Type II FLT3 Inhibitors
Published on: October 17, 2025