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Published on: April 1, 2019
A ten-genes-based diagnostic signature for atherosclerosis
Feng Zhu1,2,3, Lili Zuo4, Rui Hu5
1Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China.
Insights
Researchers identified 10 key genes to predict atherosclerosis, a major cause of cardiovascular disease. This discovery offers potential new diagnostic tools for atherosclerosis, aiding in early detection and management.
Area of Science:
- Genomics
- Biomedical research
- Cardiovascular disease
Background:
- Atherosclerosis is a primary cause of global cardiovascular mortality.
- Efficient diagnostic markers for atherosclerosis remain a significant medical challenge.
- Understanding atherosclerosis pathogenesis is crucial for developing effective treatments.
Purpose of the Study:
- To screen for potential diagnostic genes associated with atherosclerosis.
- To identify novel biomarkers for atherosclerosis detection.
- To develop a predictive model for atherosclerosis diagnosis.
Main Methods:
- Weighted gene co-expression network analysis (WGCNA) on peripheral blood gene chip data (GSE20129).
- Functional enrichment analysis (GO, KEGG) and protein-protein interaction network construction (STRING, Cytoscape).
- Logistic regression model development using identified hub genes.
Main Results:
- A module of 532 atherosclerosis-related genes was identified.
- Functional analysis revealed 235 GO terms and 44 KEGG pathways.
- A predictive model using 10 key genes effectively distinguished atherosclerosis from normal samples.
Conclusions:
- A predictive model based on 10 atherosclerosis-related genes was successfully developed.
- These genes show promise as diagnostic signatures for atherosclerosis.
- The findings contribute to advancing diagnostic research for atherosclerosis.
Background:
Atherosclerosis is the leading cause of cardiovascular disease with a high mortality worldwide. Understanding the atherosclerosis pathogenesis and identification of efficient diagnostic signatures remain major problems of modern medicine. This study aims to screen the potential diagnostic genes for atherosclerosis.
Methods:
We downloaded the gene chip data of 135 peripheral blood samples, including 57 samples with atherosclerosis and 78 healthy subjects from GEO database (Accession Number: GSE20129). The weighted gene co-expression network analysis was applied to identify atherosclerosis-related genes. Functional enrichment analysis was conducted by using the clusterProfiler R package. The interaction pairs of proteins encoded by atherosclerosis-related genes were screened using STRING database, and the interaction network was further optimized with the cytoHubba plug-in of Cytoscape software.
Results:
The logistic regression diagnostic model was constructed to predict normal and atherosclerosis samples. A gene module which included 532 genes related to the occurrence of atherosclerosis were screened. Functional enrichment analysis basing on the 532 genes identified 235 significantly enriched GO terms and 44 significantly enriched KEGG pathways. The top 50 hub genes of the protein-protein interaction network were identified. The final logistic regression diagnostic model was established by the optimal 10 key genes, which could distinguish atherosclerosis samples from normal samples.
Conclusions:
A predictive model based on 10 potential atherosclerosis-related genes was obtained, which should shed light on the diagnostic research of atherosclerosis.
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