The role of WWOX tumor suppressor gene in the regulation of EMT process via regulation of CDH1-ZEB1-VIM expression in endometrial cancer

  • Authors:
    • Elżbieta Płuciennik
    • Magdalena Nowakowska
    • Karolina Pospiech
    • Anna Stępień
    • Mateusz Wołkowicz
    • Małgorzata Gałdyszyńska
    • Marta Popęda
    • Katarzyna Wójcik-Krowiranda
    • Andrzej Bieńkiewicz
    • Andrzej K. Bednarek
  • View Affiliations

  • Published online on: April 16, 2015     https://doi.org/10.3892/ijo.2015.2964
  • Pages: 2639-2648
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Abstract

This study defines the role of WWOX in the regulation of epithelial to mesenchymal transition. A group of 164 endometrial adenocarcinoma patients was studied as well as an ECC1 well-differentiated steroid-responsive endometrial cell line, which was transducted with WWOX cDNA by a retroviral system. The relationship between WWOX gene and EMT marker (CDH1, VIM, ZEB1, SNAI1) expression on mRNA (RT-qPCR) and protein levels (western blotting) was evaluated. The EMT processes were also analysed in vitro by adhesion of cells to extracellular matrix proteins, migration through a basement membrane, anchorage-independent growth and MMP activity assay. DNA microarrays (HumanOneArray™) were used to determine WWOX-dependent pathways in an ECC1 cell line. A positive correlation was observed between WWOX and ZEB1, and a negative correlation between CDH1 and VIM. WWOX expression was found to inversely correlate with the risk of recurrence of tumors in patients. However, in the WWOX-expressing ECC1 cell line, WWOX expression was found to be inversely related with VIM and positively with CDH1. The ECC1/WWOX cell line variant demonstrated increased migratory capacity, with increased expression of metalloproteinases MMP2/MMP9. However, these cells were not able to form colonies in suspension and revealed decreased adhesion to fibronectin and fibrinogen. Microarray analysis demonstrated that WWOX has an impact on the variety of cellular pathways including the cadherin and integrin signalling pathways. Our results suggest that the WWOX gene plays a role in the regulation of EMT processes in endometrial cancer by controlling the expression of proteins associated with cell motility, thus influencing tissue remodeling, with the suppression of mesenchymal markers.
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June-2015
Volume 46 Issue 6

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Spandidos Publications style
Płuciennik E, Nowakowska M, Pospiech K, Stępień A, Wołkowicz M, Gałdyszyńska M, Popęda M, Wójcik-Krowiranda K, Bieńkiewicz A, Bednarek AK, Bednarek AK, et al: The role of WWOX tumor suppressor gene in the regulation of EMT process via regulation of CDH1-ZEB1-VIM expression in endometrial cancer. Int J Oncol 46: 2639-2648, 2015
APA
Płuciennik, E., Nowakowska, M., Pospiech, K., Stępień, A., Wołkowicz, M., Gałdyszyńska, M. ... Bednarek, A.K. (2015). The role of WWOX tumor suppressor gene in the regulation of EMT process via regulation of CDH1-ZEB1-VIM expression in endometrial cancer. International Journal of Oncology, 46, 2639-2648. https://doi.org/10.3892/ijo.2015.2964
MLA
Płuciennik, E., Nowakowska, M., Pospiech, K., Stępień, A., Wołkowicz, M., Gałdyszyńska, M., Popęda, M., Wójcik-Krowiranda, K., Bieńkiewicz, A., Bednarek, A. K."The role of WWOX tumor suppressor gene in the regulation of EMT process via regulation of CDH1-ZEB1-VIM expression in endometrial cancer". International Journal of Oncology 46.6 (2015): 2639-2648.
Chicago
Płuciennik, E., Nowakowska, M., Pospiech, K., Stępień, A., Wołkowicz, M., Gałdyszyńska, M., Popęda, M., Wójcik-Krowiranda, K., Bieńkiewicz, A., Bednarek, A. K."The role of WWOX tumor suppressor gene in the regulation of EMT process via regulation of CDH1-ZEB1-VIM expression in endometrial cancer". International Journal of Oncology 46, no. 6 (2015): 2639-2648. https://doi.org/10.3892/ijo.2015.2964