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Comorbidity

Overlapping Genes and Pathways Link Depression and Sleep Apnea Syndrome

Strategic Insights

— 1 min read

Researchers in Shanghai, People's Republic of China, have discovered significant clinical and molecular links between Depression and Sleep Apnea Syndrome (SAS). Using a three-level analysis, the team identified 24 overlapping genes with strong enrichment, supported by validation in multiple gene expression datasets. These genes formed a densely connected protein-protein interaction network, with core hubs including CASP3, TP53, SOD2, HMOX1, and MIR146A.

The study reveals that 62.07% of SAS patients exhibited depressive symptoms, with mild to moderate severity. Molecularly, 872 genes were found to be shared between 4,544 Depression-related and 1,197 SAS-related genes. Further prioritization identified 24 overlapping genes with strong enrichment, supported by validation in multiple gene expression datasets. These genes were found to be involved in oxidative stress, ferroptosis, and inflammatory pathways.

Key Takeaways:

  • 62.07% of Sleep Apnea Syndrome patients exhibited depressive symptoms, with mild to moderate severity.
  • 872 genes were found to be shared between 4,544 Depression-related and 1,197 SAS-related genes.
  • 24 overlapping genes with strong enrichment were identified, supported by validation in multiple gene expression datasets.
  • These genes formed a densely connected protein-protein interaction network, with core hubs including CASP3, TP53, SOD2, HMOX1, and MIR146A.
  • Enrichment analysis highlighted involvement in oxidative stress, ferroptosis, and inflammatory pathways.
  • Directional pathway modeling indicated that Sleep Apnea Syndrome may influence Depression via 18 genes and vice versa via 5 genes, with MIF and SOD2 acting as shared regulators.
  • The study reveals significant clinical and molecular links between Depression and Sleep Apnea Syndrome, identifying shared biological pathways and candidate targets for integrated therapeutic strategies.

Statistics:

  • 62.07% of Sleep Apnea Syndrome patients exhibited depressive symptoms.
  • 872 genes were found to be shared between 4,544 Depression-related and 1,197 SAS-related genes.
  • 24 overlapping genes with strong enrichment were identified.
  • These genes formed a densely connected protein-protein interaction network with 238 edges, density = 0.43, and clustering coefficient = 0.87.
  • 18 genes were identified as influential in the relationship between Sleep Apnea Syndrome and Depression.
  • 5 genes were identified as influential in the relationship between Depression and Sleep Apnea Syndrome.

Sources:

  • Integrative clinical and molecular insights into the comorbidity between depression and sleep apnea syndrome. Frontiers in Psychiatry, 2025;16:1659330.
  • NewsRx. Findings from Department of Respiratory Medicine Provides New Data on Sleep Apnea (Integrative clinical and molecular insights into the comorbidity between depression and sleep apnea syndrome). Respiratory Therapeutics Week. November 3, 2025; p 1004.

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