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BMC Cancer
Published in: BMC Cancer 1/2014

Open Access 01-12-2014 | Research article

MiR-200a inhibits epithelial-mesenchymal transition of pancreatic cancer stem cell

Authors: Yuhua Lu, Jingjing Lu, Xiaohong Li, Hui Zhu, Xiangjun Fan, Shajun Zhu, Yao Wang, Qingsong Guo, Lei Wang, Yan Huang, Mingyan Zhu, Zhiwei Wang

Published in: BMC Cancer | Issue 1/2014

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Abstract

Background

Pancreatic cancer is one of the most aggressive cancers, and the aggressiveness of pancreatic cancer is in part due to its intrinsic and extrinsic drug resistance characteristics, which are also associated with the acquisition of epithelial-to-mesenchymal transition (EMT). Increasing evidence suggests that EMT-type cells share many biological characteristics with cancer stem-like cells. And miR-200 has been identified as a powerful regulator of EMT.

Methods

Cancer Stem Cells (CSCs) of human pancreatic cancer cell line PANC-1 were processed for CD24, CD44 and ESA multi-colorstaining, and sorted out on a BD FACS Aria II machine. RT-qPCR was performed using the miScript PCR Kit to assay the expression of miR-200 family. In order to find the role of miR-200a in the process of EMT, miR-200a mimic was transfected to CSCs.

Results

Pancreatic cancer cells with EMT phenotype displayed stem-like cell features characterized by the expression of cell surface markers CD24, CD44 and epithelial-specific antigen (ESA), which was associated with decreased expression of miR-200a. Moreover, overexpression of miR-200a was resulted in down-regulation of N-cadherin, ZEB1 and vimentin, but up-regulation of E-cadherin. In addition, miR-200a overexpression inhibited cell migration and invasion in CSCs.

Conclusion

In our study, we found that miR-200a played an important role in linking the characteristics of cancer stem-like cells with EMT-like cell signatures in pancreatic cancer. Selective elimination of cancer stem-like cells by reversing the EMT phenotype to mesenchymal-to-epithelial transition (MET) phenotype using novel agents would be useful for prevention and/or treatment of pancreatic cancer.
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Metadata
Title
MiR-200a inhibits epithelial-mesenchymal transition of pancreatic cancer stem cell
Authors
Yuhua Lu
Jingjing Lu
Xiaohong Li
Hui Zhu
Xiangjun Fan
Shajun Zhu
Yao Wang
Qingsong Guo
Lei Wang
Yan Huang
Mingyan Zhu
Zhiwei Wang
Publication date
01-12-2014
Publisher
BioMed Central
Published in
BMC Cancer / Issue 1/2014
Electronic ISSN: 1471-2407
DOI
https://doi.org/10.1186/1471-2407-14-85

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