Author:
Yuan Yang,Zeng Zhi-Yong,Liu Xiao-Hong,Gong De-Jun,Tao Jing,Cheng He-Zhong,Huang Sheng-Dong
Abstract
Abstract
Background
This study was performed to investigate the effect of microRNA-203 (miR-203) and ΔNp63 on cell proliferation and the functional connection between miR-203 and ΔNp63 in ESCC.
Methods
We employed 2 human ESCC cell lines, Eca109 and TE-1, as the model system. The effect of miR-203 and ΔNp63 on cell proliferation was determined in cells transfected with miR-203 mimic and ΔNp63 small interfering RNA (siRNA), respectively. The regulation of ΔNp63 expression in ESCC cells by miR-203 was studied by luciferase reporter assay, RT-PCR and western blot analysis in cells transfected with miR-203. The effect of ΔNp63 re-expression on miR-203 induced inhibition of cell proliferation was studied by cell proliferation assay in cells cotransfected with miR-203 and pcDNA-ΔNp63 plasmid (without the 3'-UTR of ΔNp63).
Results
We found that both miR-203 and ΔNp63 siRNA signicantly inhibited cell proliferation in ESCC. MiR-203 could down-regulate endogenous ΔNp63 expression at the posttranscriptional level. Moreover, re-expression of ΔNp63 in cells transfected with miR-203 significantly attenuated the miR-203 induced inhibition of cell proliferation.
Conclusions
Our data implied that miR-203 could inhibit cell proliferation in human ESCC through ΔNp63-mediated signal pathway. Therefore, we propose that miR-203 might be used as a therapeutic agent for human ESCC.
Publisher
Springer Science and Business Media LLC
Subject
Cancer Research,Genetics,Oncology
Reference27 articles.
1. Enzinger PC, Mayer RJ: Esophageal cancer. N Engl J Med. 2003, 349: 2241-2252. 10.1056/NEJMra035010.
2. Li JY: Epidemiology of esophageal cancer in China. Natl Cancer Inst Monogr. 1982, 62: 113-120.
3. Gamliel Z, Krasna MJ: Multimodality treatment of esophageal cancer. Surg Clin North Am. 2005, 85: 621-630. 10.1016/j.suc.2005.01.011.
4. Pfaffl MW: A new mathematical model for relative quantification in real-time RT-PCR. Nucleic Acids Res. 2001, 29: e45-10.1093/nar/29.9.e45.
5. Gratas C, Tohma Y, Barnas C, Taniere P, Hainaut P, Ohgaki H: Up-regulation of Fas (APO-1/CD95) ligand and down-regulation of Fas expression in human esophageal cancer. Cancer Res. 1998, 58: 2057-2062.
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