Hepatocellular carcinoma up-regulated long non-coding RNA: a putative marker in multiple sclerosis

Area of Science:

• Molecular biology
• Biomarker discovery
• Immunology

Background:

• Long non-coding RNAs (lncRNAs) are increasingly recognized for their roles in gene regulation and disease pathogenesis.
• Highly up-regulated in liver cancer (HULC) is a lncRNA implicated in various cancers, but its role in inflammatory diseases like multiple sclerosis (MS) is unexplored.

Purpose of the Study:

• To investigate the expression levels of HULC in peripheral blood of MS patients and healthy individuals.
• To evaluate the potential of HULC as a diagnostic biomarker for MS.
• To explore the correlation of HULC expression with demographic factors such as age and sex.

Main Methods:

• Quantification of HULC transcript levels in peripheral blood samples from MS patients and healthy controls using quantitative real-time PCR.
• Statistical analysis including Multilevel Bayesian modeling and Quantile regression to assess differences in HULC expression.
• Evaluation of diagnostic accuracy using sensitivity, specificity, and Area Under the Curve (AUC).

Main Results:

• Quantile regression revealed a significant difference in HULC expression between MS cases and controls after adjusting for age and sex (P=0.002).
• HULC expression showed an inverse correlation with age in male subjects but not in females.
• HULC transcript levels demonstrated high diagnostic accuracy for MS (91.1%), with superior performance in males under 50 years old (AUC=0.923).

Conclusions:

• Transcript levels of HULC may serve as a potential diagnostic biomarker for multiple sclerosis.
• The diagnostic utility of HULC is influenced by age and sex, showing particular promise in younger males.
• Further validation studies with larger cohorts are warranted to confirm these findings.