To identify critical biomarkers and clarify how insomnia exacerbates sepsis-induced acute lung injury (SALI) using an integrative multi-omics approach.
Key Findings:
Insomnia was identified as a causal determinant in susceptibility to sepsis, indicating a need for targeted interventions.
WGCNA revealed 1,294 co-dysregulated genes significantly enriched in immune regulation, suggesting a pathway for therapeutic exploration.
Machine learning identified ISG20, MYO1F, and PTPN6 as robust hub genes, with PTPN6 prioritized for its diagnostic and prognostic potential.
PTPN6 expression is localized to macrophages and modulates the JAK/STAT3 signaling pathway, linking insomnia to inflammatory responses.
Interpretation:
PTPN6 is a critical biomarker linking insomnia to exacerbation of SALI, potentially through amplification of pro-inflammatory responses, which may inform future therapeutic strategies.
Limitations:
Further mechanistic investigations are required to understand the pathways involved.
Comprehensive clinical validation is needed to elucidate the regulatory network and confirm findings in patient populations.
Conclusion:
This study enhances understanding of the molecular processes linking insomnia and SALI, identifying PTPN6 as a key mediator, and underscores the need for clinical validation to translate findings into practice.
