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Quantitative Analysis of Cellular Composition in Advanced Atherosclerotic Lesions of Smooth Muscle Cell Lineage-Tracing Mice
Published on: February 20, 2019
Screening for key genes in circadian regulation in advanced atherosclerosis: A bioinformatic analysis
Jiali Yao1, Jingyan Liang1,2, Hongliang Li1,2
1Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu, China.
Insights
This study identifies two key circadian rhythm genes linked to advanced atherosclerosis (AS). These genes may offer new therapeutic targets for cardiovascular disease, improving our understanding of AS pathogenesis.
Area of Science:
- Cardiovascular Research
- Chronobiology
- Bioinformatics
Background:
- Atherosclerosis (AS) is a major cause of cardiovascular disease, including myocardial infarction and stroke.
- While AS pathogenesis is increasingly understood, the role of circadian regulation remains unclear.
- Circadian rhythms influence numerous physiological processes, and their disruption is implicated in various diseases.
Purpose of the Study:
- To investigate the relationship between circadian regulation and atherosclerosis pathogenesis.
- To identify key circadian rhythm-associated genes involved in AS.
- To explore potential new therapeutic targets for AS.
Main Methods:
- Utilized bioinformatics analysis, including Weighted Gene Co-expression Network Analysis (WGCNA) and Lasso regression.
- Downloaded and analyzed early and advanced AS patient samples from public databases.
- Assessed immune cell infiltration using CIBERSORT and analyzed gene-immune cell relationships.
Main Results:
- Identified two core circadian rhythm-related genes significantly associated with advanced AS.
- These genes were found to influence immune cell infiltration in late-stage AS.
- Receiver Operating Characteristic (ROC) curves confirmed the efficacy of these genes in distinguishing between early and advanced AS.
Conclusions:
- Two novel circadian rhythm genes strongly associated with advanced AS were identified.
- The elucidated association of these genes with AS suggests their potential as future therapeutic targets.
- This research provides novel insights into the interplay between circadian rhythm and AS development.
Background:
Atherosclerosis (AS) is the most important cardiovascular disease threatening human health, leading to adverse events such as myocardial infarction and stroke. The research on the pathogenesis and causes of AS is being improved step by step, and many factors are associated with AS. However, the relationship between circadian regulation and the pathogenesis of AS is still unclear. Our study identified 2 key genes of circadian regulation in AS by bioinformatics analysis, which provides new perspectives to understand the relationship between circadian rhythm and AS.
Methods:
We downloaded samples of early and advanced AS from public databases, screened key genes by weighted gene co-expression network analysis (WGCNA) and Lasso, calculated the immune cell content of the samples using "CIBERSORT," and analyzed the relationship between key genes and immune cells.
Results:
We obtained the most relevant core modules for advanced AS and analyzed the functions of these modules. Two circadian rhythm-related genes were obtained, which influence the immune infiltration of this late AS. ROC curves demonstrated the efficacy of key genes to differentiate between early and advanced AS.
Conclusion:
We identified 2 genes most associated with circadian rhythms in advanced AS, whose association with AS has not been elucidated and may become the next therapeutic target.
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