Sleep disturbances associated with DEAF1 pathogenic variants

Area of Science:

• Genetics
• Neuroscience
• Sleep Medicine

Background:

• Neurodevelopmental disorders and sleep disturbances often share common genetic risk factors.
• Pathogenic variants in the DEAF1 gene are associated with rare syndromes frequently exhibiting sleep disturbances.
• The specific sleep disorders and molecular mechanisms linking DEAF1 variants to sleep issues remain largely unknown.

Purpose of the Study:

• To identify specific biological processes disrupted by pathogenic DEAF1 variants.
• To elucidate the molecular mechanisms underlying sleep disturbances in individuals with DEAF1 variants.
• To investigate the association between DEAF1 regulatory targets and insomnia-associated genes.

Main Methods:

• Comparative analysis of DEAF1 regulatory target genes and insomnia-associated genes.
• Pathway enrichment analysis of intersecting gene lists.
• Identification of biological pathways potentially affected by DEAF1 mutations.

Main Results:

• Thirty-nine DEAF1 regulatory targets were also identified as insomnia-associated genes.
• The intersecting gene list was significantly associated with immune processes.
• Enrichment analysis revealed strong associations with ubiquitin-mediated proteolysis and cell cycle regulation pathways.

Conclusions:

• Pathogenic DEAF1 mutations may disrupt immune processes, ubiquitin-mediated proteolysis, and cell cycle regulation.
• These disrupted pathways are potential factors contributing to insomnia in patients with DEAF1 variants.
• This study provides preliminary insights into the molecular underpinnings of sleep disturbances associated with DEAF1 genetic variations.