Circulating long noncoding RNA: New frontiers in biomarker research for mood disorders

Area of Science:

• Psychiatry
• Genetics
• Molecular Biology

Background:

• Major depressive disorder (MDD) and bipolar disorder (BD) are complex psychiatric conditions.
• Epigenetic dysregulation is increasingly recognized as central to MDD and BD pathophysiology.
• The precise molecular mechanisms of epigenetic maladaptivity in mood disorders remain incompletely understood.

Purpose of the Study:

• To review recent clinical studies on the role of long noncoding RNAs (lncRNAs) in MDD and BD.
• To highlight the disease-specific contributions of lncRNAs as potential biomarkers.
• To explore the clinical significance of lncRNA dysregulation in peripheral blood for mood disorders.

Main Methods:

• Comprehensive literature review of clinical studies.
• Analysis of lncRNA dysregulation in peripheral blood samples from individuals with MDD and BD.
• Evaluation of lncRNAs as potential diagnostic, prognostic, and predictive biomarkers.

Main Results:

• Specific lncRNAs are dysregulated in the peripheral blood of individuals with MDD and BD.
• These lncRNAs show potential as disease-specific biomarkers.
• LncRNA dysregulation is linked to clinical diagnosis, prognosis, and treatment response prediction.

Conclusions:

• LncRNAs are emerging as critical epigenetic regulators in mood disorders.
• LncRNA profiles in peripheral blood offer promising avenues for biomarker development in MDD and BD.
• Further research into lncRNAs is crucial for advancing the understanding and treatment of mood disorders.