4.5 Article

Hypermethylation of FOXD3 suppresses cell proliferation, invasion and metastasis in hepatocellular carcinoma

期刊

EXPERIMENTAL AND MOLECULAR PATHOLOGY
卷 99, 期 2, 页码 374-382

出版社

ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.yexmp.2015.06.017

关键词

FOXD3; Methylation; Invasion; Metastasis; Hepatocellular carcinoma

资金

  1. National Basic Research Program of China (973 Program) [2015CB554002]
  2. National Natural Science Fund (Guangdong Province NSFC-Joint fund) [U1201226]
  3. National Natural Science Foundation of China [81272759, 81172382, 81472313, 81401927]
  4. Natural Science Foundation of Guangdong Province [S2013010014544]

向作者/读者索取更多资源

As a transcriptional repressor, forkhead box D3 (FOXD3) plays an important role in tumorigenesis and progression of several tumors. However, the function and methylation status of FOXD3 remain unknown in the progression of hepatocellular carcinoma (HCC). In this study, we found that FOXD3 was decreased in HCC tissues and correlated with differentiation, AFP and poor survival of HCC patients (p<0.05). Down-regulation of FOXD3 in HCC tissues was mainly due to promoter hypermethylation. In vitro and in vivo functional results showed that ectopic FOXD3 inhibited the proliferation, migration, epithelial-mesenchymal transition (EMT) and invasion in HepG2 and SMMC-7721 cells, and FOXD3 depletion in HepG2 and QGY-7701 cells showed the adverse effects (p<0.05). Moreover, FOXD3 was sufficient to suppress tumor growth and pulmonary metastatic potential in mice. Our findings suggest that down-regulation of FOXD3, due to promoter hypermethylation plays an important role in the progression of HCC and may be a promising prognostic biomarker for HCC patients. (C) 2015 Elsevier Inc. All rights reserved.

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