Open Access

Frequently rearranged in advanced T‑cell lymphomas‑1 demonstrates oncogenic properties in prostate cancer

  • Authors:
    • Wei Zhang
    • Hua Xiong
    • Yanmei Zou
    • Sanpeng Xu
    • Lanping Quan
    • Xianglin Yuan
    • Ningzhi Xu
    • Yihua Wang
  • View Affiliations

  • Published online on: September 5, 2016     https://doi.org/10.3892/mmr.2016.5704
  • Pages: 3551-3558
  • Copyright: © Zhang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Prostate cancer is the fifth most common cause of cancer‑associated mortality for males worldwide. Although dysregulation of the β‑catenin/T‑cell factor (TCF) pathway has been previously reported in prostate cancer, the mechanisms underlying this process remain unknown. Frequently rearranged in advanced T‑cell lymphomas‑1 (FRAT1) functions as a positive regulator of the β‑catenin/TCF signaling pathway. However, to the best of our knowledge, the molecular association between FRAT1 and the β‑catenin/TCF pathway in prostate cancer has not been investigated. In the present study, FRAT1 expression was analyzed in normal prostate tissues and prostate adenocarcinoma samples using publicly available databases, a commercial tissue microarray and immunohistochemistry techniques. In addition, FRAT1 expression levels were altered by overexpression or RNA interference‑mediated depletion in prostate cancer cells. The effects of FRAT1 expression on tumor growth were determined using cell growth curves in vitro and xenografts in nude mice in vivo. The effects of FRAT1 on β‑catenin/TCF activity were measured using the TOPFLASH reporter assay. FRAT1 was expressed exclusively in the nuclei of normal prostate basal cells, and nuclear FRAT1 was detected in 68% (40/59) of prostate adenocarcinoma samples. In addition, FRAT1 activated the TCF luciferase reporter gene promoter in prostate cancer cells, and was observed to promote the growth of prostate cancer cells in vitro. Furthermore, FRAT1 expression was sufficient to transform NIH3T3 mouse embryonic fibroblast cells and lead to tumor formation in vivo. These results suggest that FRAT1 demonstrates oncogenic properties in prostate cancer, potentially by suppressing the inhibitory effect of nuclear glycogen synthase 3β against β‑catenin/TCF activity, thus activating the Wnt/β‑catenin signaling pathway and promoting cell growth.
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October-2016
Volume 14 Issue 4

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Copy and paste a formatted citation
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Spandidos Publications style
Zhang W, Xiong H, Zou Y, Xu S, Quan L, Yuan X, Xu N and Wang Y: Frequently rearranged in advanced T‑cell lymphomas‑1 demonstrates oncogenic properties in prostate cancer. Mol Med Rep 14: 3551-3558, 2016
APA
Zhang, W., Xiong, H., Zou, Y., Xu, S., Quan, L., Yuan, X. ... Wang, Y. (2016). Frequently rearranged in advanced T‑cell lymphomas‑1 demonstrates oncogenic properties in prostate cancer. Molecular Medicine Reports, 14, 3551-3558. https://doi.org/10.3892/mmr.2016.5704
MLA
Zhang, W., Xiong, H., Zou, Y., Xu, S., Quan, L., Yuan, X., Xu, N., Wang, Y."Frequently rearranged in advanced T‑cell lymphomas‑1 demonstrates oncogenic properties in prostate cancer". Molecular Medicine Reports 14.4 (2016): 3551-3558.
Chicago
Zhang, W., Xiong, H., Zou, Y., Xu, S., Quan, L., Yuan, X., Xu, N., Wang, Y."Frequently rearranged in advanced T‑cell lymphomas‑1 demonstrates oncogenic properties in prostate cancer". Molecular Medicine Reports 14, no. 4 (2016): 3551-3558. https://doi.org/10.3892/mmr.2016.5704