4.6 Article

Identification of differentially expressed genes-related prognostic risk model for survival prediction in breast carcinoma patients

Journal

AGING-US
Volume 13, Issue 12, Pages 16577-16599

Publisher

IMPACT JOURNALS LLC

Keywords

breast cancer; differentially expressed genes; prognostic risk model; prognostic outcome; Cox regression

Funding

  1. Natural Science Foundation of Liaoning Province [2019MS098]
  2. National Nature Science Foundation of China (NSFC) [81872156]

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This study identified the most common differentially expressed genes in various subtypes of BRCA and established a 12-gene prognostic risk model. Evaluation of the risk model using K-M curves, ROC curves, and Cox regression showed good predictive performance and improved accuracy and sensitivity in prognosis. The risk model can assist in individualizing treatment for patients and proposing precise strategies for BRCA therapy.
Since the imbalance of gene expression has been demonstrated to tightly related to breast cancer (BRCA) genesis and growth, common genes expressed of BRCA were screened to explore the essence in-between. In current work, most common differentially expressed genes (DEGs) in various subtypes of BRCA were identified. Functional enrichment analysis illustrated the driving factor of deactivation of the cell cycle and the oocyte meiosis, which critically triggers the development of BRCA. Herein, we constructed a 12-gene prognostic risk model relative to differential gene expression. Subsequently, the K-M curves, analysis on time-ROC curve and Cox regression were performed to assess this risk model by determining the respective prognostic value, and the prediction performance were ascertained for both training and validation cohorts. In addition, multivariate Cox regression was analysed to reveal the independence between risk score and prognostic stage, and the accuracy and sensitivity of prognosis are particularly improved after clinical indicators are included into the analysis. In summary, this study offers novel insights into the imbalance of gene expression within BRCA, and highlights 12 selected genes associated with patient prognosis. The risk model can help individualize treatment for patients at different risks, and propose precise strategies and treatments for BRCA therapy.

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