The expression of HDAC7 in cancerous gastric tissues is positively associated with distant metastasis and poor patient prognosis
| Autor: | Fengjun Cao, H. Wu, Pindong Li, Xianhe Wang, Yong Li, P. Zhou, Jinhua Lei, Yuandong Yu, Xiongjie Yu, X. Li, Quan-Shu Di, W. Zhang, YunYan Tai |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Male Cancer Research Pathology medicine.medical_specialty Histone Deacetylases 03 medical and health sciences 0302 clinical medicine Stomach Neoplasms medicine Biomarkers Tumor Tumor Cells Cultured Humans Cell Proliferation Aged 80 and over Transition (genetics) business.industry Cell growth Proportional hazards model Cell Cycle HDAC7 Cancer General Medicine medicine.disease Prognosis In vitro Gene Expression Regulation Neoplastic Survival Rate 030104 developmental biology Oncology 030220 oncology & carcinogenesis Case-Control Studies Lymphatic Metastasis Cancer cell Disease Progression Immunohistochemistry Female business Follow-Up Studies |
| Zdroj: | Clinicaltranslational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico. 19(8) |
| ISSN: | 1699-3055 |
| Popis: | To characterize the expression patterns of HDAC7 in patients with gastric cancer and evaluate the prognostic value of HDAC7 in gastric cancer. The expression of histone deacetylase 7 (HDAC7) was detected in paraffin-embedded gastric cancer samples from 86 patients by immunohistochemistry, and the differences in the expression of HDAC7 between cancerous and corresponding adjacent noncancerous tissues were compared using the Wilcoxon matched-pairs signed rank test. The correlation between HDAC7 expression and Ki-67 expression or clinicopathologic characteristics was evaluated using a Spearman rank correlation test. Prognostic outcomes that correlated with HDAC7 were examined using a Kaplan–Meier analysis and Cox proportional hazards model. Moreover, the effects of HDAC7 on the proliferation, migration and invasion of gastric cancer cells were investigated in vitro using human gastric carcinoma AGS cells. We found that HDAC7 was downregulated in cancerous gastric tissues (P = 0.0019). However, the expression of HDAC7 in cancerous gastric tissues positively correlated with Ki-67 expression (P = 0.0325) and distant metastasis (P = 0.020). Moreover, overall survival was shorter for patients expressing higher levels of HDAC7 in cancerous tissues (P = 0.042). Mechanistically, the disruption of the HDAC7 gene attenuated the capacity of cell growth, migration and invasion and induced G0/G1 arrest in AGS cells. Conversely, forced ovperexpression of HDAC7 promoted cell growth, migration and invasion and G1/S transition in AGS cells. These results indicate that high HDAC7 expression in cancerous gastric tissues correlates with distant metastasis and predicts a poor prognosis for patients with gastric cancer. |
| Databáze: | OpenAIRE |
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