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International Journal of Molecular Medicine
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October 2014 Volume 34 Issue 4

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Article

Downregulation of Notch1 inhibits the invasion of human hepatocellular carcinoma HepG2 and MHCC97H cells through the regulation of PTEN and FAK

  • Authors:
    • Yan-Jian Hu
    • Hong-Ying Li
    • Kai-Jie Qiu
    • Da-Chuan Li
    • Jia-Hui Zhou
    • Yan-Hua Hu
    • Feng-Min Zhang
  • View Affiliations / Copyright

    Affiliations: Department of Gastroenterology, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China, Department of Biochemistry, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China, Department of General Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China, Department of Applied Statistics, Liaoning University, Shenyang, Liaoning 110036, P.R. China, Department of Microbiology, Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
  • Pages: 1081-1086
    |
    Published online on: August 8, 2014
       https://doi.org/10.3892/ijmm.2014.1889
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Abstract

Tumor invasion and metastasis are the main causes of mortality in patients with hepatocellular carcinoma (HCC). Thus, the effective inhibition of these tumorigenic processes is critical in order for HCC therapy to be effective. Previous studies have demonstrated that Notch1 is associated with metastasis in several human malignancies. However, the exact molecular mechanisms underlying the Notch1-mediated induction of the invasion of HCC cells remain poorly understood. In the present study, we demonstrate that, compared to the normal liver cell line, L02, Notch1 is highly expressed in the human HCC cell lines, HepG2 and MHCC97H. Using small interfering RNA (siRNA), we knocked down the expression of Notch1 in the cell lines. Notch1 expression in the HCC cell lines was also measured following transfection with siRNA using RT-PCR and western blot analysis. In addition, a migration and invasion assay was performed to determine the effects of Notch1 knockdown on cell migration and invasion. Our results demonstrated that the downregulation of Notch1 by small interfering RNA (siRNA) significantly inhibited the migration and invasion of both HCC cell lines. Additionally, we demonstrated that the knockdown of Notch1 in both HCC cell lines increased both the total expression of phosphatase and tensin homolog (PTEN) and its phosphorylated form. By contrast, focal adhesion kinase (FAK) and phospho-FAK expression was decreased following Notch1 depletion. Taken together, our data suggest that targeting Notch1 may be a useful therapeutic approach to inhibiting the metastasis of HCC cells.
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Copy and paste a formatted citation
Spandidos Publications style
Hu Y, Li H, Qiu K, Li D, Zhou J, Hu Y and Zhang F: Downregulation of Notch1 inhibits the invasion of human hepatocellular carcinoma HepG2 and MHCC97H cells through the regulation of PTEN and FAK. Int J Mol Med 34: 1081-1086, 2014.
APA
Hu, Y., Li, H., Qiu, K., Li, D., Zhou, J., Hu, Y., & Zhang, F. (2014). Downregulation of Notch1 inhibits the invasion of human hepatocellular carcinoma HepG2 and MHCC97H cells through the regulation of PTEN and FAK. International Journal of Molecular Medicine, 34, 1081-1086. https://doi.org/10.3892/ijmm.2014.1889
MLA
Hu, Y., Li, H., Qiu, K., Li, D., Zhou, J., Hu, Y., Zhang, F."Downregulation of Notch1 inhibits the invasion of human hepatocellular carcinoma HepG2 and MHCC97H cells through the regulation of PTEN and FAK". International Journal of Molecular Medicine 34.4 (2014): 1081-1086.
Chicago
Hu, Y., Li, H., Qiu, K., Li, D., Zhou, J., Hu, Y., Zhang, F."Downregulation of Notch1 inhibits the invasion of human hepatocellular carcinoma HepG2 and MHCC97H cells through the regulation of PTEN and FAK". International Journal of Molecular Medicine 34, no. 4 (2014): 1081-1086. https://doi.org/10.3892/ijmm.2014.1889
Copy and paste a formatted citation
x
Spandidos Publications style
Hu Y, Li H, Qiu K, Li D, Zhou J, Hu Y and Zhang F: Downregulation of Notch1 inhibits the invasion of human hepatocellular carcinoma HepG2 and MHCC97H cells through the regulation of PTEN and FAK. Int J Mol Med 34: 1081-1086, 2014.
APA
Hu, Y., Li, H., Qiu, K., Li, D., Zhou, J., Hu, Y., & Zhang, F. (2014). Downregulation of Notch1 inhibits the invasion of human hepatocellular carcinoma HepG2 and MHCC97H cells through the regulation of PTEN and FAK. International Journal of Molecular Medicine, 34, 1081-1086. https://doi.org/10.3892/ijmm.2014.1889
MLA
Hu, Y., Li, H., Qiu, K., Li, D., Zhou, J., Hu, Y., Zhang, F."Downregulation of Notch1 inhibits the invasion of human hepatocellular carcinoma HepG2 and MHCC97H cells through the regulation of PTEN and FAK". International Journal of Molecular Medicine 34.4 (2014): 1081-1086.
Chicago
Hu, Y., Li, H., Qiu, K., Li, D., Zhou, J., Hu, Y., Zhang, F."Downregulation of Notch1 inhibits the invasion of human hepatocellular carcinoma HepG2 and MHCC97H cells through the regulation of PTEN and FAK". International Journal of Molecular Medicine 34, no. 4 (2014): 1081-1086. https://doi.org/10.3892/ijmm.2014.1889
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