Related Experiment Video
Updated: Feb 26, 2026
08:23
Single Cell Transcriptional Profiling of Adult Mouse Cardiomyocytes
Published on: December 28, 2011
18.2K
Microarray analysis reveals key genes and pathways in Tetralogy of Fallot
Yue-E He1, Hui-Xian Qiu1, Jian-Bing Jiang1
1Department of Pediatric Cardiology, Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China.
Molecular Medicine Reports
|July 18, 2017
Summary
Bioinformatics analysis identified 878 differentially expressed genes in Tetralogy of Fallot (TOF). Key genes involved in neurodegenerative disorders and protein translation may contribute to TOF pathogenesis.
Area of Science:
- Cardiovascular Biology
- Genomics
- Bioinformatics
Background:
- Tetralogy of Fallot (TOF) is a complex congenital heart defect.
- Understanding the genetic basis of TOF is crucial for developing effective treatments.
Purpose of the Study:
- To identify key genes and pathways involved in the pathogenesis of Tetralogy of Fallot (TOF) using bioinformatics.
- To explore the functional interactions and regulatory networks of differentially expressed genes in TOF.
Main Methods:
- Downloaded and analyzed the GSE26125 microarray dataset from the Gene Expression Omnibus database.
- Performed differential gene expression analysis using R/limma package with stringent thresholds (log2 fold-change >2, FDR <0.01).
- Constructed functional interaction networks and performed pathway enrichment analysis using ReactomeFIViz and ToppGene; identified regulatory transcription factors using iRegulon.
Main Results:
- Identified 878 differentially expressed genes (DEGs) in TOF samples, with 848 upregulated and 30 downregulated.
- The functional interaction network revealed seven modules, primarily composed of upregulated genes.
- Genes in Module 1 were associated with neurological disorders (Parkinson's, Alzheimer's, Huntington's); Modules 0, 3, and 5 were enriched in ribosome and protein translation pathways.
- Xbox binding protein 1 was identified as a key transcription factor regulating genes in these pathways.
Conclusions:
- Dysregulation of genes involved in neurodegenerative disorder signaling pathways, ribosome function, and protein translation may contribute to TOF pathogenesis.
- Xbox binding protein 1 plays a significant role in regulating these critical pathways in TOF.
- This study provides novel insights into the molecular mechanisms underlying TOF, highlighting potential therapeutic targets.
