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Wang J, Tian Y, Chen H, Li H, Zheng S. Key signaling pathways, genes and transcription factors associated with hepatocellular carcinoma. Mol Med Rep 2018; 17:8153-8160. [PMID: 29658607 PMCID: PMC5983994 DOI: 10.3892/mmr.2018.8871] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 04/03/2018] [Indexed: 01/30/2023] Open
Abstract
The purpose of the present study was to investigate the underlying molecular mechanism of hepatocellular carcinoma (HCC) using bioinformatics approaches. The microarray dataset GSE64041 was downloaded from the Gene Expression Omnibus database, which included 60 tumor liver samples and 60 matched control samples. Differentially expressed genes (DEGs) between HCC and control groups were identified. Then functional enrichment analyses, protein‑protein interaction (PPI) network, sub‑network and integrated transcription factor (TF)‑microRNA (miRNA)‑target network analyses were performed for these DEGs. A total of 378 DEGs were obtained, including 101 upregulated and 277 downregulated DEGs. In addition, functional enrichment analysis for DEGs in the sub‑network revealed 'cell division' and 'cell cycle' as key Gene Ontology (GO) terms and pathways. Topoisomerase (DNA) IIα (TOP2A) and integrin subunit α2 (ITGA2) were hub nodes in the PPI network. TOP2A, cyclin dependent kinase 1 (CDK1) and polo like kinase 1 (PLK1) were revealed to be hub nodes in the sub‑network. Finally, 4 TFs including forkhead box M1 (FOXM1), E2F transcription factor 4 (E2F4), SIN3 transcription regulator family member A (SIN3A) and transcription factor 7 like 1 (TCF7L1) were obtained through integrated network analysis. TOP2A, ITGA2, PLK1 and CDK1 may be key genes involved in HCC development. 'Cell division' and 'cell cycle' were indicated to act as key GO terms and Kyoto Encyclopedia of Genes and Genomes pathways in HCC. In addition, FOXM1, TCF7L1, E2F4 and SIN3A were revealed to be key TFs associated with HCC.
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Affiliation(s)
- Jingcheng Wang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Key Laboratory of Combined Multi‑Organ Transplantation, Ministry of Public Health Key Laboratory of Organ Transplantation, Collaborative Innovation Center for Diagnosis Treatment of Infectious Diseases, Hangzhou, Zhejiang 310003, P.R. China
| | - Yang Tian
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Key Laboratory of Combined Multi‑Organ Transplantation, Ministry of Public Health Key Laboratory of Organ Transplantation, Collaborative Innovation Center for Diagnosis Treatment of Infectious Diseases, Hangzhou, Zhejiang 310003, P.R. China
| | - Hui Chen
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Key Laboratory of Combined Multi‑Organ Transplantation, Ministry of Public Health Key Laboratory of Organ Transplantation, Collaborative Innovation Center for Diagnosis Treatment of Infectious Diseases, Hangzhou, Zhejiang 310003, P.R. China
| | - Hui Li
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Key Laboratory of Combined Multi‑Organ Transplantation, Ministry of Public Health Key Laboratory of Organ Transplantation, Collaborative Innovation Center for Diagnosis Treatment of Infectious Diseases, Hangzhou, Zhejiang 310003, P.R. China
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Key Laboratory of Combined Multi‑Organ Transplantation, Ministry of Public Health Key Laboratory of Organ Transplantation, Collaborative Innovation Center for Diagnosis Treatment of Infectious Diseases, Hangzhou, Zhejiang 310003, P.R. China
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Ou XH, Liao LF, Liu HG, Xu H. Significance of POLD1 expression in primary hepatocellular carcinoma. Shijie Huaren Xiaohua Zazhi 2011; 19:151-155. [DOI: 10.11569/wcjd.v19.i2.151] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the significance of expression of DNA polymerase delta catalytic subunit gene (POLD1) and its protein product p125 in hepatocellular carcinoma (HCC).
METHODS: The expression of POLD1 mRNA and protein in 20 surgically resected HCC tissue samples was detected by reverse transcription-polymerase chain reaction (RT-PCR) and Western blot, respectively.
RESULTS: The expression level of POLD1 mRNA was significantly higher in HCC than in matched tumor-adjacent noncancerous tissue (0.70 ± 0.34 vs 0.37 ± 0.23, P < 0.05). The expression level of p125 in HCC was also significantly higher than that in tumor-adjacent tissue (0.63 ± 0.19 vs 0.39 ± 0.21, P < 0.05). p125 expression was correlated with tumor size and clinical stage, but not with HBV infection, age and sex in HCC.
CONCLUSION: POLD1 mRNA and protein expression is significantly correlated with pathological stage of HCC. POLD1 may be used as a diagnostic maker and a potential therapeutic target for HCC.
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