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Article

OCT4 regulates epithelial-mesenchymal transition and its knockdown inhibits colorectal cancer cell migration and invasion

  • Authors:
    • Xinzheng Dai
    • Jing Ge
    • Xuehao Wang
    • Xiaofeng Qian
    • Chuanyong Zhang
    • Xiangcheng Li
  • View Affiliations / Copyright

    Affiliations: Liver Transplantation Center, First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Living Donor Liver Transplantation, Ministry of Public Health, Nanjing 210029, P.R. China, Department of Endocrinology of Jiangsu Provincial Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Traditional Chinese Medicine, Nanjing 210022, Jiangsu, P.R. China
  • Pages: 155-160
    |
    Published online on: October 17, 2012
       https://doi.org/10.3892/or.2012.2086
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Abstract

Octamer-binding transcription factor 4 (OCT4) has been implicated in cancer metastasis. In this study, we investigated whether OCT4 promotes colorectal cancer (CRC) metastasis through the epithelial-mesenchymal transition (EMT) process. We designed our experiment as a loss-of-function study. Western blot analysis was used to measure the extent and stability of OCT4 knockdown. We evaluated the metastatic phenotype of OCT4-silenced SW620 cells using standard migration and invasion assays in vitro and the commonly used mouse model for experimental metastases in vivo. We found that OCT4 knockdown inhibited colorectal cancer cell motility and invasion (in vitro) and decreased hepatic colonization (in vivo). It also induced changes in EMT characteristic cell morphology and marker gene expression. In addition, its knockdown decreased WNT pathway activity. Finally, in human primary colorectal cancers, the frequency of upregulated OCT4 expression in cases with liver metastasis was statistically higher than that in cases without liver metastasis. These results indicate that OCT4 may contribute to CRC cell metastasis through EMT and serves as a promising biomarker for identifying CRC patients at high risk for liver metastases.
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Copy and paste a formatted citation
Spandidos Publications style
Dai X, Ge J, Wang X, Qian X, Zhang C and Li X: OCT4 regulates epithelial-mesenchymal transition and its knockdown inhibits colorectal cancer cell migration and invasion. Oncol Rep 29: 155-160, 2013.
APA
Dai, X., Ge, J., Wang, X., Qian, X., Zhang, C., & Li, X. (2013). OCT4 regulates epithelial-mesenchymal transition and its knockdown inhibits colorectal cancer cell migration and invasion. Oncology Reports, 29, 155-160. https://doi.org/10.3892/or.2012.2086
MLA
Dai, X., Ge, J., Wang, X., Qian, X., Zhang, C., Li, X."OCT4 regulates epithelial-mesenchymal transition and its knockdown inhibits colorectal cancer cell migration and invasion". Oncology Reports 29.1 (2013): 155-160.
Chicago
Dai, X., Ge, J., Wang, X., Qian, X., Zhang, C., Li, X."OCT4 regulates epithelial-mesenchymal transition and its knockdown inhibits colorectal cancer cell migration and invasion". Oncology Reports 29, no. 1 (2013): 155-160. https://doi.org/10.3892/or.2012.2086
Copy and paste a formatted citation
x
Spandidos Publications style
Dai X, Ge J, Wang X, Qian X, Zhang C and Li X: OCT4 regulates epithelial-mesenchymal transition and its knockdown inhibits colorectal cancer cell migration and invasion. Oncol Rep 29: 155-160, 2013.
APA
Dai, X., Ge, J., Wang, X., Qian, X., Zhang, C., & Li, X. (2013). OCT4 regulates epithelial-mesenchymal transition and its knockdown inhibits colorectal cancer cell migration and invasion. Oncology Reports, 29, 155-160. https://doi.org/10.3892/or.2012.2086
MLA
Dai, X., Ge, J., Wang, X., Qian, X., Zhang, C., Li, X."OCT4 regulates epithelial-mesenchymal transition and its knockdown inhibits colorectal cancer cell migration and invasion". Oncology Reports 29.1 (2013): 155-160.
Chicago
Dai, X., Ge, J., Wang, X., Qian, X., Zhang, C., Li, X."OCT4 regulates epithelial-mesenchymal transition and its knockdown inhibits colorectal cancer cell migration and invasion". Oncology Reports 29, no. 1 (2013): 155-160. https://doi.org/10.3892/or.2012.2086
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