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Erschienen in: Annals of Surgical Oncology 3/2013

01.12.2013 | Translational Research and Biomarkers

MicroRNA-200a and -200b Mediated Hepatocellular Carcinoma Cell Migration Through the Epithelial to Mesenchymal Transition Markers

verfasst von: Chin-Sheng Hung, MD, Hui-Hsiung Liu, MD, PhD, Jun-Jen Liu, PhD, Chi-Tai Yeh, PhD, Tung-Cheng Chang, MD, Chih-Hsiung Wu, MD, PhD, Yuan-Soon Ho, PhD, Po-Li Wei, MD, PhD, Yu-Jia Chang, PhD

Erschienen in: Annals of Surgical Oncology | Sonderheft 3/2013

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Abstract

Background

MicroRNAs (miRNAs) play an essential role in mediating gene expression in both normal and malignant cells. However, little is known about specific miRNAs during the development of hepatocellular carcinoma (HCC) from well-differentiated to poorly differentiated cells.

Methods

We performed miRNA array analysis of three different HCC cell lines: HepG2, HepJ5, and skHep-1. The expression patterns of miR-200 family members were confirmed by real-time polymerase chain reaction (PCR). We overexpressed miR-200 family members by using a lentivirus system and selected for stably transduced cells using antibiotics. The migration ability of the cells was tested using the Transwell migration assay system.

Results

Our miRNA array and real-time PCR results indicated a decrease in the expression of miR-200 family members in poorly differentiated skHep-1 cells compared with well-differentiated HepG2 cells. We overexpressed miR-200a and miR-200b in both HepJ5 and skHep-1 cells and found that the overexpression of the miR-200 family members did not influence proliferation, although migration was decreased in these cells. We found that overexpression of miR-200 family members led to an upregulation of E-cadherin expression in both HepJ5 and skHep-1 cells. Furthermore, we silenced E-cadherin expression by shRNA in miR200a-HepJ5 cells and found that the migratory ability of these cells was enhanced upon the decrease in E-cadherin expression.

Conclusions

Members of the miR-200 family (miR-200a and miR-200b) play important roles in HCC migration by regulating E-cadherin expression.
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Metadaten
Titel
MicroRNA-200a and -200b Mediated Hepatocellular Carcinoma Cell Migration Through the Epithelial to Mesenchymal Transition Markers
verfasst von
Chin-Sheng Hung, MD
Hui-Hsiung Liu, MD, PhD
Jun-Jen Liu, PhD
Chi-Tai Yeh, PhD
Tung-Cheng Chang, MD
Chih-Hsiung Wu, MD, PhD
Yuan-Soon Ho, PhD
Po-Li Wei, MD, PhD
Yu-Jia Chang, PhD
Publikationsdatum
01.12.2013
Verlag
Springer US
Erschienen in
Annals of Surgical Oncology / Ausgabe Sonderheft 3/2013
Print ISSN: 1068-9265
Elektronische ISSN: 1534-4681
DOI
https://doi.org/10.1245/s10434-012-2482-4

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