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Zhou J, Wen T, Li Q, Chen Z, Peng X, Wei C, Wei Y, Peng J, Zhang W. Single-Cell Sequencing Revealed Pivotal Genes Related to Prognosis of Myocardial Infarction Patients. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:6534126. [PMID: 35317194 PMCID: PMC8934393 DOI: 10.1155/2022/6534126] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/08/2022] [Accepted: 02/19/2022] [Indexed: 02/06/2023]
Abstract
Objectives Myocardial infarction (MI) is a common cardiovascular disease. Histopathology is a main molecular characteristic of MI, but often, differences between various cell subsets have been neglected. Under this premise, MI-related molecular biomarkers were screened using single-cell sequencing. Methods This work examined immune cell abundance in normal and MI samples from GSE109048 and determined differences in the activated mast cells and activated CD4 memory T cells, resting mast cells. Weighted gene coexpression network analysis (WGCNA) demonstrated that activated CD4 memory T cells were the most closely related to the turquoise module, and 10 hub genes were screened. Single-cell sequencing data (scRNA-seq) of MI were examined. We used t-distributed stochastic neighbor embedding (t-SNE) for cell clustering. Results We obtained 8 cell subpopulations, each of which had different marker genes. 7 out of the 10 hub genes were detected by single-cell sequencing analysis. The expression quantity and proportion of the 7 genes were different in 8 cell clusters. Conclusion In general, our study revealed the immune characteristics and determined 7 prognostic markers for MI at the single-cell level, providing a new understanding of the molecular characteristics and mechanism of MI.
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Affiliation(s)
- Jiamin Zhou
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province 330006, China
- Hypertension Research Institute, Hypertension Research Institute of Jiangxi Province, 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province, China
| | - Tong Wen
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province 330006, China
- Hypertension Research Institute, Hypertension Research Institute of Jiangxi Province, 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province, China
| | - Qing Li
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province 330006, China
- Hypertension Research Institute, Hypertension Research Institute of Jiangxi Province, 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province, China
| | - Zhixin Chen
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province 330006, China
- Hypertension Research Institute, Hypertension Research Institute of Jiangxi Province, 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province, China
| | - Xiaoping Peng
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province 330006, China
- Hypertension Research Institute, Hypertension Research Institute of Jiangxi Province, 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province, China
| | - Chunying Wei
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province 330006, China
- Hypertension Research Institute, Hypertension Research Institute of Jiangxi Province, 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province, China
| | - Yunfeng Wei
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province 330006, China
- Hypertension Research Institute, Hypertension Research Institute of Jiangxi Province, 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province, China
| | - Jingtian Peng
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province 330006, China
- Hypertension Research Institute, Hypertension Research Institute of Jiangxi Province, 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province, China
| | - Wei Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanchang University, 17 Yongwai Zhengjie, Donghu District, Nanchang City Jiangxi Province, China
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