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Article

Inhibitory effect of silibinin on EGFR signal-induced renal cell carcinoma progression via suppression of the EGFR/MMP-9 signaling pathway

  • Authors:
    • Liang Liang
    • Lei Li
    • Jin Zeng
    • Yang Gao
    • Yu-Le Chen
    • Zhi-Qiang Wang
    • Xin-Yang Wang
    • Luke S. Chang
    • Dalin He
  • View Affiliations / Copyright

    Affiliations: Department of Urology, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi'an, P.R. China
  • Pages: 999-1005
    |
    Published online on: June 19, 2012
       https://doi.org/10.3892/or.2012.1874
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Abstract

The activation of epidermal growth factor (EGF) through its receptor, EGFR, is one of the major mechanisms that mediate renal cell carcinoma (RCC) metastasis. Silibinin, a natural flavonoid antioxidant with pleiotropic anticancer capability, has shown anti-metastatic effects in a variety of cancers. However, the mechanism by which silibinin inhibits EGFR signal-induced migration and invasion of RCC cells is not clear. Here, we evaluated the potential roles of EGFR signaling cascade that affects RCC progression, and also investigated the inhibitory effect of silibinin on the EGFR signal-induced migration and invasion abilities of RCC cells. Our data indicated that silibinin inhibited migration and invasion of RCC cells in a dose-dependent manner via blocking the EGFR signal, especially in the EGFR highly expressing RCC cells. Silibinin inhibited phosphorylation of EGFR and its downstream molecules ERK1/2 but did not affect phosphorylation of other downstream molecules, STAT3 and Akt, in human RCC cell lines. Moreover, our data suggested that silibinin significantly reduced the MMP-9 expression and its activity that was promoted by the EGFR signal, and also suppressed MMP9-dependent migration and invasion abilities of RCC cells. Taken together, this study clearly demonstrated that silibinin inhibited EGFR induced migration and invasion of RCC cells via blockade of EGFR/MMP-9 signaling. Thus, we suggest that silibinin could be used as a potential effective drug for the inhibition of RCC metastasis.
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Copy and paste a formatted citation
Spandidos Publications style
Liang L, Li L, Zeng J, Gao Y, Chen Y, Wang Z, Wang X, Chang LS and He D: Inhibitory effect of silibinin on EGFR signal-induced renal cell carcinoma progression via suppression of the EGFR/MMP-9 signaling pathway. Oncol Rep 28: 999-1005, 2012.
APA
Liang, L., Li, L., Zeng, J., Gao, Y., Chen, Y., Wang, Z. ... He, D. (2012). Inhibitory effect of silibinin on EGFR signal-induced renal cell carcinoma progression via suppression of the EGFR/MMP-9 signaling pathway. Oncology Reports, 28, 999-1005. https://doi.org/10.3892/or.2012.1874
MLA
Liang, L., Li, L., Zeng, J., Gao, Y., Chen, Y., Wang, Z., Wang, X., Chang, L. S., He, D."Inhibitory effect of silibinin on EGFR signal-induced renal cell carcinoma progression via suppression of the EGFR/MMP-9 signaling pathway". Oncology Reports 28.3 (2012): 999-1005.
Chicago
Liang, L., Li, L., Zeng, J., Gao, Y., Chen, Y., Wang, Z., Wang, X., Chang, L. S., He, D."Inhibitory effect of silibinin on EGFR signal-induced renal cell carcinoma progression via suppression of the EGFR/MMP-9 signaling pathway". Oncology Reports 28, no. 3 (2012): 999-1005. https://doi.org/10.3892/or.2012.1874
Copy and paste a formatted citation
x
Spandidos Publications style
Liang L, Li L, Zeng J, Gao Y, Chen Y, Wang Z, Wang X, Chang LS and He D: Inhibitory effect of silibinin on EGFR signal-induced renal cell carcinoma progression via suppression of the EGFR/MMP-9 signaling pathway. Oncol Rep 28: 999-1005, 2012.
APA
Liang, L., Li, L., Zeng, J., Gao, Y., Chen, Y., Wang, Z. ... He, D. (2012). Inhibitory effect of silibinin on EGFR signal-induced renal cell carcinoma progression via suppression of the EGFR/MMP-9 signaling pathway. Oncology Reports, 28, 999-1005. https://doi.org/10.3892/or.2012.1874
MLA
Liang, L., Li, L., Zeng, J., Gao, Y., Chen, Y., Wang, Z., Wang, X., Chang, L. S., He, D."Inhibitory effect of silibinin on EGFR signal-induced renal cell carcinoma progression via suppression of the EGFR/MMP-9 signaling pathway". Oncology Reports 28.3 (2012): 999-1005.
Chicago
Liang, L., Li, L., Zeng, J., Gao, Y., Chen, Y., Wang, Z., Wang, X., Chang, L. S., He, D."Inhibitory effect of silibinin on EGFR signal-induced renal cell carcinoma progression via suppression of the EGFR/MMP-9 signaling pathway". Oncology Reports 28, no. 3 (2012): 999-1005. https://doi.org/10.3892/or.2012.1874
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