Using transcription modules to identify expression clusters perturbed in Williams-Beuren syndrome

Area of Science:

• Genetics
• Molecular Biology
• Systems Biology

Background:

• Williams-Beuren Syndrome (WBS) is a neurodevelopmental disorder caused by a specific genetic deletion.
• While WBS phenotypes are studied, the global transcriptomic impact of the WBS deletion remains unclear.

Purpose of the Study:

• To investigate global gene expression changes in WBS patients.
• To identify disrupted gene networks and pathways in WBS using a modular approach.

Main Methods:

• Transcriptome profiling of skin fibroblasts from WBS patients and controls.
• Differential gene expression analysis.
• Identification and analysis of coexpressed gene modules in human fibroblasts.

Main Results:

• Identified 868 differentially expressed genes in WBS fibroblasts.
• Enrichment analysis revealed dysregulation in extracellular matrix, MHC, and postsynaptic membrane genes.
• Identified altered coexpressed gene modules, indicating disturbed regulatory networks in WBS.

Conclusions:

• The WBS deletion causes widespread transcriptomic dysregulation in fibroblasts.
• Coexpressed gene modules reveal interconnected networks disturbed in WBS.
• This modular approach provides candidate genes and interactions for WBS phenotypes.