Overexpressed HDAC4 is associated with poor survival and promotes tumor progression in esophageal carcinoma

Histone deacetylases (HDACs) mediate histone deacetylation, leading to transcriptional repression, which is involved in many diseases, including age-related tissue degeneration, heart failure and cancer. In this study, we were aimed to investigate the expression, clinical significance and biological...

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Published in:Aging (Albany, NY.) NY.), 2016-06, Vol.8 (6), p.1236-1248
Main Authors: Zeng, Li-Si, Yang, Xian-Zi, Wen, Yue-Feng, Mail, Shi-Juan, Wang, Meng-He, Zhang, Mei-Yin, Zheng, X F Steven, Wang, Hui-Yun
Format: Article
Language:English
Subjects:
Cadherins - genetics
Cadherins - metabolism
Carcinogenesis - genetics
Carcinogenesis - metabolism
Carcinoma, Squamous Cell - genetics
Carcinoma, Squamous Cell - metabolism
Carcinoma, Squamous Cell - mortality
Cell Cycle - physiology
Cell Line, Tumor
Cell Movement - physiology
Cell Proliferation - physiology
Disease Progression
Epithelial-Mesenchymal Transition
Esophageal Neoplasms - genetics
Esophageal Neoplasms - metabolism
Esophageal Neoplasms - mortality
Gene Expression Regulation, Neoplastic
Histone Deacetylases - genetics
Histone Deacetylases - metabolism
Humans
Phosphorylation
Prognosis
Repressor Proteins - genetics
Repressor Proteins - metabolism
Research Paper
Survival Rate
Vimentin - genetics
Vimentin - metabolism
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Summary:Histone deacetylases (HDACs) mediate histone deacetylation, leading to transcriptional repression, which is involved in many diseases, including age-related tissue degeneration, heart failure and cancer. In this study, we were aimed to investigate the expression, clinical significance and biological function of HDAC4 in esophageal carcinoma (EC). We found that HDAC4 mRNA and protein are overexpressed in esophageal squamous cell carcinoma (ESCC) tissues and cell lines. HDAC4 overexpression is associated with higher tumor grade, advanced clinical stage and poor survival. Mechanistically, HDAC4 promotes proliferation and G1/S cell cycle progression in EC cells by inhibiting cyclin-dependent kinase (CDK) inhibitors p21 and p27 and up-regulating CDK2/4 and CDK-dependent Rb phosphorylation. HDAC4 also enhances ESCC cell migration. Furthermore, HDAC4 positively regulates epithelial-mesenchymal transition (EMT) by increasing the expression of Vimentin and decreasing the expression of E-Cadherin/α-Catenin. Together, our study shows that HDAC4 overexpression is important for the oncogenesis of EC, which may serve as a useful prognostic biomarker and therapeutic target for this malignancy.
ISSN:1945-4589
1945-4589
DOI:10.18632/aging.100980