期刊
CURRENT GENOMICS
卷 21, 期 2, 页码 119-127出版社
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/1389202921666200316115631
关键词
Pancreatic cancer; biomarker; clic; chloride intracellular channel; miRNA; adenocarcinoma
Background: Pancreatic ductal adenocarcinoma (PDAC) is associated with poor prognosis. In this context. the identification of biomarkers regarding the PDAC diagnosis, monitoring, and prognosis is crucial. Objectives: The purpose of the current study was to investigate the differential gene expression profile of the chloride intracellular channel (CLIC) gene family network in patients with PDAC, in order to suggest novel biomarkers. Methods: In silica techniques were used to construct the interactome of the CLIC gene family, identify the differentially expressed genes (DEGs) in PDAC as compared to healthy controls, and evaluate their potential prognostic role. Results: Transcriptomic data of three microarray datasets were included, incorporating 114 tumor and 59 normal pancreatic samples. Twenty DEGs were identified; eight were up-regulated and twelve were downregulated. A molecular signature of seven genes (Chloride Intracellular Channel 1 - CLIC1; Chloride Intracellular Channel 3 - CLIC3; Chloride Intracellular Channel 4 - CLIC4; Ganglioside Induced Differentiation Associated Protein 1 - GDAPI; Ganglioside Induced Differentiation Associated Protein 1 Like 1 - GDAPIL1 ; Glutathione S-Transferase Pi 1 - GSTP1; Prostaglandin E Synthase 2 - PTGES2) were identified as prognostic markers associated with overall survival. Positive correlations were reported regarding the expression of CLIC1-CLIC3, CLIC4-CLIC5, and CLIC5-CLIC6. Finally, gene set enrichment analysis demonstrated the molecular functions and miRNA families (hsa-miR-122, hsa-miR-618, hsa-miR-425, and hsa-miR-518) relevant to the seven prognostic markers. Conclusion: These outcomes demonstrate a seven-gene molecular panel that predicts the patients' prospective survival following pancreatic resection for PDAC.
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