Published in:
Open Access
01-12-2018 | Primary research
Paraoxonase 3 is involved in the multi-drug resistance of esophageal cancer
Authors:
Dabing Huang, Yong Wang, Yifu He, Gang Wang, Wei Wang, Xinghua Han, Yubei Sun, Lin Lin, Benjie Shan, Guodong Shen, Min Cheng, Geng Bian, Xiang Fang, Shilian Hu, Yueyin Pan
Published in:
Cancer Cell International
|
Issue 1/2018
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Abstract
Background
Drug resistance prevents the effective treatment of cancers. DNA methylation has been found to participate in the development of cancer drug resistance.
Methods
We performed the wound-healing and invasion assays to test the effect of the paraoxonase gene PON3 on esophageal cancer (EC) cells. In addition, in vivo EC-derived tumor xenografts in nude mice were generated to test the effect of PON3 on the chemoresistance of EC cells.
Results
We found that PON3 is hypermethylated in drug-resistant EC cell line K150, which in-return down-regulates its expression. The following experiments by the forced changes of PON3 level in vitro and in vivo demonstrated that the PON3 expression negatively correlates with drug resistance in EC cells. Further wound-healing and invasion assays showed that PON3 suppresses the migration and invasion of EC cells.
Conclusion
Our data established that PON3 is associated with the EC drug resistance, which may serve as a biomarker for the potential therapeutic treatment of EC.