Analysis of network expression and immune infiltration of disulfidptosis‐related genes in chronic obstructive pulmonary disease

Author:

Liu Yanqun1,Zhu Tao2,Wang Juan1,Cheng Yan1,Zeng Qiang1,You Zhangqiang3,Dai Guangming4ORCID

Affiliation:

1. The No. 1 Department of Gerontology The Third Hospital of Mianyang, Sichuan Mental Health Center/The Third Hospital of Mianyang (Sichuan Mental Health Center) Mianyang China

2. Respiratory Medicine and Critical Care Medicine Suining Central Hospital Suining China

3. Ecological Security and Protection Key Laboratory of Sichuan Province Mianyang Normal University Mianyang China

4. Department of Geriatrics First People's Hospital of Suining City Suining China

Abstract

AbstractBackgroundChronic obstructive pulmonary disease (COPD) is a globally prevalent respiratory disease, and programmed cell death plays a pivotal role in the development of COPD. Disulfidptosis is a newly discovered type of cell death that may be associated with the progression of COPD. However, the expression and role of disulfidptosis‐related genes (DRGs) in COPD remain unclear.MethodsThe expression of DRGs was identified by analyzing RNA sequencing (RNA‐seq) data in COPD. Further, COPD patients were classified into two subtypes by unsupervised cluster analysis to reveal their differences in gene expression and immune infiltration. Meanwhile, hub genes associated with disulfidptosis were screened by weighted gene co‐expression network analysis. Subsequently, the hub genes were validated experimentally in cells and animals. In addition, we screened potential therapeutic drugs through the hub genes.ResultsWe identified two distinct molecular clusters and observed significant differences in immune cell populations between them. In addition, we screened nine hub genes, and experimental validation showed that CDC71, DOHH, PDAP1, and SLC25A39 were significantly upregulated in cigarette smoke‐induced COPD mouse lung tissues and bronchial epithelial cells (BEAS‐2B) treated with cigarette smoke extract. Finally, we predicted 10 potential small molecule drugs such as Atovaquone, Taurocholic acid, Latamoxef, and Methotrexate.ConclusionWe highlighted the strong association between COPD and disulfidptosis, with DRGs demonstrating a discriminative capacity for COPD. Additionally, the expression of certain novel genes, including CDC71, DOHH, PDAP1, and SLC25A39, is linked to COPD and may aid in the diagnosis and assessment of this condition.

Publisher

Wiley

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