Peripheral expression of long non-coding RNAs in bipolar patients

Area of Science:

• Molecular Biology
• Genetics
• Neuroscience

Background:

• Long non-coding RNAs (lncRNAs) are implicated in the pathogenesis of various human disorders, including neuropsychiatric conditions.
• Understanding the role of specific lncRNAs in bipolar disorder (BD) is crucial for advancing diagnostic and therapeutic strategies.

Purpose of the Study:

• To investigate the expression levels of six apoptosis-related lncRNAs (CCAT2, TUG1, PANDA, NEAT1, FAS-AS1, and OIP5-AS1) in bipolar disorder patients.
• To assess the potential contribution of these lncRNAs to the pathogenesis of BD.
• To evaluate the diagnostic utility of these lncRNAs as biomarkers for BD.

Main Methods:

• Expression profiling of six apoptosis-related lncRNAs in peripheral blood samples from BD patients and healthy controls.
• Statistical analysis to compare lncRNA expression between groups and identify significant differences.
• Receiver operating characteristic (ROC) curve analysis to determine the diagnostic power of individual lncRNAs and their combinations.

Main Results:

• CCAT2, TUG1, and PANDA were significantly upregulated, while OIP5-AS1 was downregulated in BD patients compared to healthy controls.
• Sex-specific differences in lncRNA expression were observed, with CCAT2 and TUG1 differing in males, and PANDA in both males and females.
• TUG1 exhibited the highest diagnostic power individually, and a combination of CCAT2, TUG1, PANDA, and OIP5-AS1 achieved a diagnostic power of 0.96, indicating high sensitivity and specificity.

Conclusions:

• Specific lncRNAs, including CCAT2, TUG1, PANDA, and OIP5-AS1, play a potential role in the pathogenesis of bipolar disorder.
• These lncRNAs demonstrate significant potential as diagnostic biomarkers for bipolar disorder, warranting further investigation.