Open Access

Analysis of key genes and pathways in breast ductal carcinoma in situ

  • Authors:
    • Min Wu
    • Hongmei Zhao
  • View Affiliations

  • Published online on: September 9, 2020     https://doi.org/10.3892/ol.2020.12080
  • Article Number: 217
  • Copyright: © Wu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Breast cancer (BC) remains the most common cancer in females. Therefore, the present study aimed to identify key genes involved in the carcinogenesis of BC and to explore their prognostic values by integrating bioinformatics tools. The gene expression profiles of 46 ductal carcinoma in situ (DCIS) and three normal breast tissues from the GSE59248 dataset were downloaded. Differentially expressed genes (DEGs) were subsequently identified using the online tool GEO2R and a functional enrichment analysis was performed. In addition, a protein‑protein interaction (PPI) network was constructed and the top eight hub genes were identified. The prognostic values of the hub genes were further investigated. A total of 316 DEGs, including 32 upregulated and 284 downregulated genes, were identified. Furthermore, eight hub genes, including lipase E hormone sensitive type, patatin like phospholipase domain containing 2, adiponectin C1Q and collagen domain containing (ADIPOQ), peroxisome proliferator activated receptor γ (PPARG), fatty acid binding protein 4 (FABP4), diacylglycerol O‑acyltransferase 2, lipoprotein lipase (LPL) and leptin (LEP), were identified from the PPI network. The downregulated expression of ADIPOQ, PPARG, FABP4, LPL and LEP was significantly associated with poor overall survival in patients with DCIS. Therefore, these genes may serve as potential biomarkers for prognosis prediction. However, further investigation is required to validate the results obtained in the present study.
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November-2020
Volume 20 Issue 5

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Wu M and Zhao H: Analysis of key genes and pathways in breast ductal carcinoma <em>in&nbsp;situ</em>. Oncol Lett 20: 217, 2020.
APA
Wu, M., & Zhao, H. (2020). Analysis of key genes and pathways in breast ductal carcinoma <em>in&nbsp;situ</em>. Oncology Letters, 20, 217. https://doi.org/10.3892/ol.2020.12080
MLA
Wu, M., Zhao, H."Analysis of key genes and pathways in breast ductal carcinoma <em>in&nbsp;situ</em>". Oncology Letters 20.5 (2020): 217.
Chicago
Wu, M., Zhao, H."Analysis of key genes and pathways in breast ductal carcinoma <em>in&nbsp;situ</em>". Oncology Letters 20, no. 5 (2020): 217. https://doi.org/10.3892/ol.2020.12080