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Identification of candidate aberrantly methylated and differentially expressed genes in Esophageal squamous cell carcinoma

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单位: [1]Tianjin Med Univ, Tianjin Med Univ Canc Inst & Hosp, Publ Lab,Natl Clin Res Ctr Canc, Key Lab Breast Canc Prevent & Therapy,Minist Educ, Tianjin 30000, Peoples R China [2]Huazhong Univ Sci & Technol, Union Hosp, Tongji Med Coll, Dept Otorhinolaryngol, Wuhan 430022, Peoples R China [3]Stanford Univ, Dept Otolaryngol Head & Neck Surg, Sch Med, Stanford, CA 94305 USA [4]Wuhan Univ, Dept Otorhinolaryngol Head & Neck Surg, Zhongnan Hosp, Wuhan 430071, Peoples R China [5]Stanford Univ, Dept Med, Sch Med, Stanford, CA 94305 USA [6]Huazhong Univ Sci & Technol,Tongji Hosp,Tongji Med Coll,Dept Neurosurg,Wuhan 430030,Peoples R China [7]Guangdong Prov Maternal & Child Hlth Care Hosp, Guangzhou 511400, Peoples R China
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Aberrant methylated genes (DMGs) play an important role in the etiology and pathogenesis of esophageal squamous cell carcinoma (ESCC). In this study, we aimed to integrate three cohorts profile datasets to ascertain aberrant methylated-differentially expressed genes and pathways associated with ESCC by comprehensive bioinformatics analysis. We downloaded data of gene expression microarrays (GSE20347, GSE38129) and gene methylation microarrays (GSE52826) from the Gene Expression Omnibus (GEO) database. Aberrantly differentially expressed genes (DEGs) were obtained by GEO2R tool. The David database was then used to perform Gene ontology (GO) analysis and Kyoto Encyclopedia of Gene and Genome pathway enrichment analyses on selected genes. STRING and Cytoscape software were used to construct a protein-protein interaction (PPI) network, then the modules in the PPI networks were analyzed with MCODE and the hub genes chose from the PPI networks were verified by Oncomine and TCGA database. In total, 291 hypomethylation-high expression genes and 168 hypermethylation-low expression genes were identified at the screening step, and finally found six mostly changed hub genes including KIF14, CDK1, AURKA, LCN2, TGM1, and DSG1. Pathway analysis indicated that aberrantly methylated DEGs mainly associated with the P13K-AKT signaling, cAMP signaling and cell cycle process. After validation in multiple databases, most hub genes remained significant. Patients with high expression of AURKA were associated with shorter overall survival. To summarize, we have identified six feasible aberrant methylated-differentially expressed genes and pathways in ESCC by bioinformatics analysis, potentially providing valuable information for the molecular mechanisms of ESCC. Our data combined the analysis of gene expression profiling microarrays and gene methylation profiling microarrays, simultaneously, and in this way, it can shed a light for screening and diagnosis of ESCC in future.

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出版当年[2019]版:
大类 | 3 区 综合性期刊
小类 | 3 区 综合性期刊
最新[2025]版:
大类 | 3 区 综合性期刊
小类 | 3 区 综合性期刊
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出版当年[2018]版:
Q1 MULTIDISCIPLINARY SCIENCES
最新[2023]版:
Q1 MULTIDISCIPLINARY SCIENCES

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第一作者单位: [1]Tianjin Med Univ, Tianjin Med Univ Canc Inst & Hosp, Publ Lab,Natl Clin Res Ctr Canc, Key Lab Breast Canc Prevent & Therapy,Minist Educ, Tianjin 30000, Peoples R China
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通讯机构: [2]Huazhong Univ Sci & Technol, Union Hosp, Tongji Med Coll, Dept Otorhinolaryngol, Wuhan 430022, Peoples R China [3]Stanford Univ, Dept Otolaryngol Head & Neck Surg, Sch Med, Stanford, CA 94305 USA
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