4.5 Article

WNT10A/β-catenin pathway in tumorigenesis of papillary thyroid carcinoma

Journal

ONCOLOGY REPORTS
Volume 38, Issue 2, Pages 1287-1294

Publisher

SPANDIDOS PUBL LTD
DOI: 10.3892/or.2017.5777

Keywords

papillary thyroid carcinoma; WNT10A; beta-catenin; late apoptosis

Categories

Funding

  1. National Natural Science Foundation of China [81272351]
  2. Fundamental Research Funds of Shandong University [2015JC010]
  3. Project of Medical and Health Technology Development Program in Shandong Province [2014ws0349]
  4. Open Research Fund of State Key Laboratory of Environmental Chemistry and Ecotoxicology [KF2014-08]
  5. Primary Research and Development Plan of Shandong Province [2016GSF201137]

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Papillary thyroid carcinoma is the most common thyroid cancer and the incidence is increasing. Aberrant activation of the WNT/beta-catenin pathway plays an important role in carcinogenesis. In the present study, microarray analysis was employed to compare tissues from papillary thyroid cancer and adjacent normal tissues to determine candidate genes facilitating tumor invasion. The result demonstrated that genes involved in WNT/beta-catenin signaling pathway were activated in papillary thyroid cancer, WNT10A expression was found to be upregulated >4-fold. The variations in gene expression were verified in tissues obtained from other papillary thyroid cancer patients. Molecular mechanism exploration in thyroid cells showed that enhanced WNT10A/beta-catenin signaling pathway activation promoted cell proliferation and migration. The promotion was validated by RNA interference of WNT10A and LEF1 expression. Moreover, results from flow cytometry demonstrated that WNT/beta-catenin signaling pathway activation reduced the percentage of late apoptotic thyroid cells. Conclusively, the results suggest for the first time that WNT10A/beta-catenin signaling pathway plays a crucial role in human papillary thyroid cancer.

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