Open Access

High expression of DDX20 enhances the proliferation and metastatic potential of prostate cancer cells through the NF-κB pathway

  • Authors:
    • Weiguo Chen
    • Peng Zhou
    • Xiaowei Li
  • View Affiliations

  • Published online on: April 25, 2016     https://doi.org/10.3892/ijmm.2016.2575
  • Pages: 1551-1557
  • Copyright: © Chen et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

DEAD (Asp-Glu-Ala-Asp) box polypeptide 20 (DDX20), a member of the DEAD box protein family, encodes an RNA helicase. Previous research has revealed that DDX20 may act as a tumor suppressor in hepatocellular carcinoma and as a tumor promoter in breast cancer. These conflicting reports prompted us to explore the role of DDX20 in prostate cancer (PCa). To gain insight into the functions of DDX20 in PCa, we examined DDX20 expression patterns in a PCa tissue microarray with 99 PCa tissue samples. The results of immunohistochemical staining revealed that DDX20 expression is frequently upregulated in PCa tissues compared with that in the adjacent tissues and further clinicopathological analysis showed that the expression level of DDX20 closely correlates with tumor size, TNM stage (positive correlation) and patient prognosis (negative correlation). Both gain‑of- and loss‑of‑function assays were performed in vitro; the overexpression of DDX20 enhanced the proliferation and metastatic potential of cancer cells and this was examined by performing a cell counting kit-8 (CCK-8) assay, wound healing assay and Transwell migration assay. Furthermore, we found that there is a positive correlation between the expression of matrix metallopeptidase 9 (MMP9) and DDX20 expression. These findings led us to examine whether DDX20 may exert effects through the NF‑κB pathway. Luciferase reporter assays suggested that DDX20 altered the activity of NF-κB. Taken together, these findings show that DDX20 may promote the progression of PCa through the NF-κB pathway.
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June-2016
Volume 37 Issue 6

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Chen W, Zhou P and Li X: High expression of DDX20 enhances the proliferation and metastatic potential of prostate cancer cells through the NF-κB pathway. Int J Mol Med 37: 1551-1557, 2016
APA
Chen, W., Zhou, P., & Li, X. (2016). High expression of DDX20 enhances the proliferation and metastatic potential of prostate cancer cells through the NF-κB pathway. International Journal of Molecular Medicine, 37, 1551-1557. https://doi.org/10.3892/ijmm.2016.2575
MLA
Chen, W., Zhou, P., Li, X."High expression of DDX20 enhances the proliferation and metastatic potential of prostate cancer cells through the NF-κB pathway". International Journal of Molecular Medicine 37.6 (2016): 1551-1557.
Chicago
Chen, W., Zhou, P., Li, X."High expression of DDX20 enhances the proliferation and metastatic potential of prostate cancer cells through the NF-κB pathway". International Journal of Molecular Medicine 37, no. 6 (2016): 1551-1557. https://doi.org/10.3892/ijmm.2016.2575