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The WWOX tumor suppressor gene in endometrial adenocarcinoma.

Authors:
Elżbieta Płuciennik Katarzyna Kośla Katarzyna Wójcik-Krowiranda Andrzej Bieńkiewicz Andrzej K Bednarek

Int J Mol Med 2013 Dec 11;32(6):1458-64. Epub 2013 Oct 11.

Department of Molecular Cancerogenesis, Medical University of Lodz, PL 90-752 Lodz, Poland.

Endometrial cancer is a lethal malignancy, the causes of which remain to be determined. The aim of the present study, carried out on tumor samples from 79 patients, was to evaluate the role of the WWOX tumor suppressor gene in endometrial adenocarcinoma. The expression levels of WWOX and its protein content were assessed in normal endometrium and cancer samples. Quantitative PCR was used to assess the correlation between the expression levels of WWOX and the genes involved in the proliferation (MKI67), apoptosis (BAX, BCL2), signal transduction (EGFR), cell cycle (CCNE1, CCND1), cell adhesion (CDH1) and transcription regulation (TP73, NCOR1). The relationship between loss of hetero-zygosity (LOH) and WWOX mRNA levels was also investigated using high resolution melting. Results of the present study demonstrated a positive correlation of WWOX expression with BCL2 and CCND1 and a negative correlation with BAX, CDH1, NCOR1 and BCL2/BAX ratio. The results also showed that loss of heterozygosity at two analyzed loci of the WWOX gene is frequent in patients with endometrial cancer and that WWOX expression levels are lower in tumor samples than in normal tissue. In conclusion, WWOX may be involved in endometrial cancer.

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http://dx.doi.org/10.3892/ijmm.2013.1526DOI Listing
December 2013

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