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Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
Published on: July 19, 2019
GAS8 and its naturally occurring antisense RNA as biomarkers in multiple sclerosis
Mona Patoughi1, Soudeh Ghafouri-Fard1, Shahram Arsang-Jang2
1Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Abstract:
Expressions of the Growth arrest specific 8 (GAS8) and its naturally occurring anti-sense RNA (GAS8-AS1) have been assessed in tumoral tissues of different origins. However, their association with immune-related disorders has been poorly understood. In the current study, we evaluated expression levels of these genes in 50 relapsing-remitting multiple sclerosis (RRMS) patients compared with age- and sex-matched controls. Expressions of both genes were significantly higher in total MS patients compared with controls (P = 0.001 and P < 0.0001 respectively). The difference in GAS8 expression was also significant in total female patients and females aged less than 50 when compared with the corresponding control subjects (P = 0.002 and 0.006 respectively). GAS8-AS1 was higher in male patients in both age-based subgroups compared with the corresponding healthy subjects (P < 0.0001). Expressions of both genes were inversely correlated with age of male study participants but no other subgroups. GAS8-AS1 transcript levels had 99.6% accuracy in diagnosis of disease status in male subjects. The current study shows significance of GAS8 and GAS8-AS1 in the pathogenesis of MS and the putative role of GAS8-AS1 as a diagnostic biomarker in a subset of patients.
Insights
Growth arrest specific 8 (GAS8) and GAS8-AS1 gene expressions are elevated in multiple sclerosis (MS) patients. GAS8-AS1 shows high accuracy for diagnosing MS in males, suggesting its potential as a biomarker.
Area of Science:
- Genetics
- Immunology
- Neurology
Background:
- The roles of Growth arrest specific 8 (GAS8) and its antisense RNA (GAS8-AS1) in immune-related disorders, particularly multiple sclerosis (MS), are not well understood.
- Previous studies have examined GAS8 and GAS8-AS1 expression in various tumor tissues.
Purpose of the Study:
- To investigate the expression levels of GAS8 and GAS8-AS1 in patients with relapsing-remitting multiple sclerosis (RRMS).
- To explore the potential association of GAS8 and GAS8-AS1 with MS pathogenesis and their utility as diagnostic biomarkers.
Main Methods:
- Gene expression analysis was performed on samples from 50 RRMS patients and age- and sex-matched healthy controls.
- Statistical analyses were used to compare gene expression levels between patient and control groups, and to assess correlations with age and diagnostic accuracy.
Main Results:
- Both GAS8 and GAS8-AS1 showed significantly higher expression in total MS patients compared to controls.
- GAS8 expression was significantly higher in female MS patients, while GAS8-AS1 was elevated in male MS patients across age groups.
- GAS8-AS1 transcript levels demonstrated 99.6% accuracy in diagnosing disease status in male subjects and were inversely correlated with age in male participants.
Conclusions:
- GAS8 and GAS8-AS1 play a significant role in the pathogenesis of multiple sclerosis.
- GAS8-AS1 holds promise as a diagnostic biomarker for MS, particularly in a subset of male patients.
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