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Combinatorial Chemistry & High Throughput Screening

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ISSN (Print): 1386-2073
ISSN (Online): 1875-5402

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Research Article

Comprehensive Analysis of Cuproptosis Genes and Identification of Cuproptosis Subtypes in Breast Cancer

Author(s): Jialin Li, Lei Li*, Yi Dong, Bin Zhong and Wei Yin

Volume 26, Issue 8, 2023

Published on: 31 January, 2023

Page: [1578 - 1593] Pages: 16

DOI: 10.2174/1386207326666230120112904

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Abstract

Background: Copper-induced death (cuproptosis) is copper-dependent regulated cell death, which is different from known death mechanisms and is dependent on mitochondrial respiration. However, its effect on breast cancer (BRCA) is unclear.

Objective: The objective of this study is to explore the important clinical significance of cuproptosis genes and to provide a new idea for guiding the personalized immunotherapy strategy of BRCA patients.

Materials and Methods: We collected cuproptosis genes from published work. The gene alteration, differential expression, and prognostic value of cuproptosis genes were explored in BRCA based on TCGA database. We identified two subtypes (clusters A and B) by performing unsupervised clustering. The difference between two clusters was deeply explored, including clinical features, differential expressed genes (DEGs), pathways, and immune cell infiltration. Based on the DEGs between two clusters, a cuproptosis score was constructed and its predictive capability for overall survival of BRCA patients was validated.

Results and Discussion: Patients with high cuproptosis score have worse survival status, with an increased infiltration level of most immune cells. Further analysis suggested that BRCA patients with high cuproptosis score may be sensitive to immune checkpoint inhibitor (ICI) treatment.

Conclusion: Our findings may improve our understanding of cuproptosis in BRCA and may distinguish patients suitable for ICI treatment.

Keywords: Cuproptosis, BRCA, subtypes, ICI treatment, cell death, copper-induced death.

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