期刊
TUMOR BIOLOGY
卷 36, 期 10, 页码 7649-7658出版社
SAGE PUBLICATIONS LTD
DOI: 10.1007/s13277-015-3463-6
关键词
Ovarian cancer; Glucose metabolism; Cell cycle; G6PC; CDKN1B
类别
资金
- Chinese Scholarship Council
We aimed to evaluate the role of glucose-6-phosphatase, catalytic subunit (G6PC) in ovarian cancer and to exploit its therapeutic potential. With reproduction of The Cancer Genome Atlas (TCGA) database, we studied expressions of genes in the glucose metabolism pathways in silico. The cBioPortal For Cancer Genomics was used to study the clinical, pathological and molecular profiles of G6PC. In vitro studies were performed to validate the function of G6PC and the effect of genetic and pharmaceutical G6PC inhibition. In 158 ovarian cancer (OvCa) patients with complete RNA-seq data, G6PC expression was increased in 27 patients (17 %). Both overall survival (OS) and disease-free period were significantly shorter in cases with increased G6PC level. Significantly decreased total and phosphorylated CDKN1B level was noted in OvCa with increased G6PC expression. Silenced G6PC in OvCa cells induced decreased cell proliferation, viability, invasiveness and anchorage-independent cell growth. G6PC silencing also induced enhanced cell cycle control proteins and restoration of CDKN1B level. Pharmaceutical inhibition of G6PC with specific compound showed similar effects to genetic silencing. G6PC played dual roles both in glucose metabolism and cell cycle control in OvCa, which potentiated it a promising therapeutic target.
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