4.6 Article

Demystifying the Role of Prognostic Biomarkers in Breast Cancer through Integrated Transcriptome and Pathway Enrichment Analyses

期刊

DIAGNOSTICS
卷 13, 期 6, 页码 -

出版社

MDPI
DOI: 10.3390/diagnostics13061142

关键词

gene; molecular diagnostic; prognosis; therapy; database

向作者/读者索取更多资源

Breast cancer is a common and deadly disease in women. This study aimed to identify new biomarkers for diagnosis and treatment. Using TCGA datasets, differentially expressed genes (DEGs) were identified and analyzed for functional enrichment and protein-protein interaction networks. Hub genes were selected and their association with overall survival (OS) was analyzed. A total of 824 DEGs were identified, mainly enriched in cell proliferation and signal transduction. Five hub genes, AURKA, BUB1B, CCNA2, CCNB2, and PBK, were found to be associated with poor OS in breast cancer patients. These genes were hypomethylated and involved in chromosomal instability and aneuploidy. The study highlighted the potential of these hub genes as diagnostic and therapeutic targets for breast cancer.
Breast cancer (BC) is the most commonly diagnosed cancer and the leading cause of death in women. Researchers have discovered an increasing number of molecular targets for BC prognosis and therapy. However, it is still urgent to identify new biomarkers. Therefore, we evaluated biomarkers that may contribute to the diagnosis and treatment of BC. We searched TCGA datasets and identified differentially expressed genes (DEGs) by comparing tumor (100 samples) and non-tumor (100 samples) tissues using the Deseq2 package. Pathway and functional enrichment analysis of the DEGs was performed using the DAVID (Database for Annotation, Visualization, and Integrated Discovery) database. The protein-protein interaction (PPI) network was identified using the STRING database and visualized through Cytoscape software. Hub gene analysis of the PPI network was completed using cytohubba plugins. The associations between the identified genes and overall survival (OS) were analyzed using a Kaplan-Meier plot. Finally, we have identified hub genes at the transcriptome level. A total of 824 DEGs were identified, which were mostly enriched in cell proliferation, signal transduction, and cell division. The PPI network comprised 822 nodes and 12,145 edges. Elevated expression of the five hub genes AURKA, BUB1B, CCNA2, CCNB2, and PBK are related to poor OS in breast cancer patients. A promoter methylation study showed these genes to be hypomethylated. Validation through genetic alteration and missense mutations resulted in chromosomal instability, leading to improper chromosome segregation causing aneuploidy. The enriched functions and pathways included the cell cycle, oocyte meiosis, and the p53 signaling pathway. The identified five hub genes in breast cancer have the potential to become useful targets for the diagnosis and treatment of breast cancer.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据