Analysis of 182 cerebral palsy transcriptomes points to dysregulation of trophic signalling pathways and overlap with...

Area of Science:

• Neuroscience
• Genetics
• Developmental Biology

Background:

• Cerebral palsy (CP) is the leading childhood motor disability, with complex and often unknown causes.
• While genetic factors are increasingly recognized, the molecular underpinnings of CP remain largely elusive.
• CP frequently co-occurs with neurodevelopmental comorbidities, hinting at shared biological pathways.

Purpose of the Study:

• To investigate the molecular basis of cerebral palsy by analyzing gene expression patterns.
• To identify potential shared genetic and molecular links between cerebral palsy and autism spectrum disorder (ASD).
• To improve the diagnostic resolution of CP cases through integrated genomic analysis.

Main Methods:

• Transcriptome analysis (differential gene expression and WGCNA) of cell lines from 182 individuals with CP.
• Comparison of gene expression profiles in CP patients with control data.
• Integration of transcriptome data with whole exome sequencing (WES) data.

Main Results:

• Significant transcriptional dysregulation of trophic signaling pathways was identified in CP patient cell lines.
• Genes differentially expressed in CP and associated co-expression networks were enriched for genes linked to ASD.
• Combining transcriptome and WES data increased the diagnostic resolution of CP cases.

Conclusions:

• Convergent molecular abnormalities, particularly involving trophic signaling pathways, may underlie both CP and ASD.
• Shared genetic and molecular pathways provide new insights into the etiology of CP and its comorbidities.
• Integrated multi-omics approaches enhance the understanding and potential diagnosis of complex neurodevelopmental disorders like CP.