AI Article Synopsis
- The study aimed to determine how differentially expressed genes (DEGs) influenced by methylation patterns can help predict the prognosis of colon cancer.
- The researchers analyzed RNA sequencing and DNA methylation data from a large dataset of colon adenocarcinoma cases to identify significant DEGs and their biological roles.
- Their findings revealed specific hub genes linked to patient survival, indicating these genes could serve as valuable biomarkers for diagnosis and treatment of colon cancer.
Article Abstract
Objective: To identify the value of key differentially expressed genes (DEGs) regulated by differentially methylated regions (DMRs) in predicting the prognosis of human colon cancer.
Materials And Methods: RNA sequencing data and DNA methylation data of 455 colon adenocarcinoma (COAD) cases and 41 normal controls were downloaded from The Cancer Genome Atlas (TCGA). Gene Ontology (GO) functional enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were performed by the DAVID database. To identify the hub genes regulated by methylation, univariate Cox and multivariate Cox regression analyses were carried out. A nomogram based on the risk score was built to identify the power of the hub genes to predict prognosis in patients with colon cancer.
Results: A total of 133 DEGs regulated by DMRs were identified through analyzing RNA sequencing data and DNA methylation data from TCGA. GO functional enrichment and KEGG pathway enrichment analysis showed the genes involved in the initiation and progression of colon cancer. Univariate Cox regression analysis and multivariate Cox regression analysis focused on the seven hub genes (, , , , , and ) associated with overall survival, the expression of which negatively correlated with their methylation level. The risk score and nomogram model showed that the hub genes served as potential biomarkers for the prognosis prediction of patients with colon cancer.
Conclusion: Our findings suggest that the DEGs regulated by DMRs are involved in the carcinogenesis and development of colon cancer, and the aberrantly methylated DEGs associated with overall survival of patients may be potential diagnostic and therapeutic targets for colon cancer.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8403012 | PMC |
| http://dx.doi.org/10.2147/IJGM.S324483 | DOI Listing |
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