Eight hub genes as potential biomarkers for breast cancer diagnosis and prognosis: A TCGA-based study

doi:10.5306/wjco.v13.i8.675

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World Journal of Clinical Oncology

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2218-4333

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Clinical and Translational Research

World J Clin Oncol. Aug 24, 2022; 13(8): 675-687
Published online Aug 24, 2022. doi: 10.5306/wjco.v13.i8.675

Eight hub genes as potential biomarkers for breast cancer diagnosis and prognosis: A TCGA-based study

Nan Liu, Guo-Duo Zhang, Ping Bai, Li Su, Hao Tian, Miao He

Nan Liu, Guo-Duo Zhang, Ping Bai, Li Su, Miao He, Department of Hematology and Oncology, Chongqing Traditional Chinese Medicine Hospital, Chengdu University of Traditional Chinese Medicine, Chongqing 400011, China

Hao Tian, Department of Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China

Author contributions: Liu N performed the experiment and wrote the paper; Liu N, Zhang GD, and Bai P contributed to the bioinformatics analysis and figure preparation; Tian H and Su L modified the structure and language of the manuscript; He M and Tian H contributed to the conception and design of the study and the revisions of the manuscript; All authors have read and approved the final manuscript.

Institutional review board statement: Not applicable.

Conflict-of-interest statement: The authors have no conflicts of interest to declare.

Data sharing statement: No additional data are available.

Corresponding author: Miao He, MS, Department of Hematology and Oncology, Chongqing Traditional Chinese Medicine Hospital, Chengdu University of Traditional Chinese Medicine, Daomenkou 40, Chongqing 400011, China. zhuytzhuzh@163.com

Received: August 2, 2021
Peer-review started: August 2, 2021
First decision: November 6, 2021
Revised: December 23, 2021
Accepted: July 26, 2022
Article in press: July 26, 2022
Published online: August 24, 2022
Processing time: 386 Days and 8.1 Hours

ARTICLE HIGHLIGHTS

Research background

Breast cancer (BC) is the most common malignant tumor in women. In 2019, 268600 new BC patients and 41760 new BC deaths were reported, accounting for 30% of all new cancer cases and 15% of cancer-related deaths. Therefore, it is particularly important to explore more sensitive and specific biomarkers for further understanding the pathogenesis of BC and the choice of treatment strategies.

Research motivation

Exploring more valuable therapeutic targets would be helpful in treating with high efficacy.

Research objectives

This study aimed to identify novel biomarkers for BC.

Research methods

The limma package of R software and clusterProfiler package were used to analyze the differentially expressed genes (DEGs) in tumor tissues compared with the normal tissues, respectively. The protein-protein interaction network (PPI) analysis was used to investigate the hub-genes through cytohubba algorithm by the Cytoscape software. Survival analysis of the hub-genes were carried out through the Kaplan-Meier database. The expression level of these hub-genes was validated in the GEPIA database and the Human Protein Atlas database.

Research results

Upregulated genes mainly enriched in the cytokine-cytokine receptor interaction, cell cycle, and p53 signaling pathway (P < 0.01). The downregulated genes were mainly enriched in the cytokine-cytokine receptor interaction, peroxisome proliferator-activated receptor signaling pathway, and AMP-activated protein kinase signaling pathway (P < 0.01).

Research conclusions

MAD2L1, PLK1, SAA1, CCNB1, SHCBP1, KIF4A, ANLN, and ERCC6L may act as biomarkers for diagnosis and prognosis in BC patients.

Research perspectives

Proper validations must be made in future studies.