Expression Analysis of Long Non-coding RNAs in the Blood of Multiple Sclerosis Patients
- 405 Downloads
Multiple sclerosis (MS) is a chronic immune-mediated disorder of the central nervous system (CNS) with multiple genetic and environmental risk factors. Long non-coding RNAs (lncRNAs) have been recently reported to participate in the regulation of immune responses. Consequently, aberrant expression of lncRNAs has been suggested as an underlying cause of MS. In the present study, we evaluated the expression of three lncRNAs with putative roles in the regulation of immune response, namely TNF-α and heterogeneous nuclear ribonucleoprotein L (THRIL), Fas cell surface death receptor- antisense 1 (FAS-AS1), and plasmacytoma variant translocation 1 (PVT1) in circulating blood cells of 50 Iranian relapsing–remitting multiple sclerosis (RRMS) patients compared with healthy subjects by means of quantitative real-time polymerase chain reaction (PCR). We detected a significant downregulation of PVT1 and FAS-AS1 expressions in RRMS patients while a significant upregulation of THRIL in patients compared with controls (P < 0.001). Correlation analyses between lncRNA expression levels and clinical data of MS patients revealed no significant correlation between lncRNAs expression levels and Expanded Disability Status Scale (EDSS), a moderate correlation between PVT1 expression levels and duration of the disorder and no significant correlation between lncRNAs expression levels and age at onset. In addition, we demonstrated correlations between the expression levels of PVT1 and THRIL as well as expression levels of THRIL and FAS-AS1 in RRMS patients. In brief, we have demonstrated dysregulation of three lncRNAs in MS patients. Further studies are needed to explore the exact mechanisms by which these lncRNAs participate in regulation of immune responses.
KeywordsMultiple sclerosis lncRNA THRIL FAS-AS1 PVT1
The current study was supported by a grant from Hamadan University of Medical Sciences (grant number: 9507134138).
Compliance with Ethical Standards
Conflict of Interest
The authors declare that they have no conflict of interest.
- Austin PJ, Tsitsiou E, Boardman C, Jones SW, Lindsay MA, Adcock IM, Chung KF, Perry MM (2017) Transcriptional profiling identifies the long noncoding RNA plasmacytoma variant translocation (PVT1) as a novel regulator of the asthmatic phenotype in human airway smooth muscle. J Allergy Clin Immunol 139:780–789CrossRefPubMedPubMedCentralGoogle Scholar
- Colombo, T., Farina, L., Macino, G. & Paci, P. 2015. PVT1: a rising star among oncogenic long noncoding RNAs. Biomed Research InternationalGoogle Scholar
- Gnanaprakasam JNR, Wang RN (2017) MYC in regulating immunity: metabolism and beyond. Genes 8Google Scholar
- Naghavian R, Ghaedi K, Kiani-Esfahani A, Ganjalikhani-Hakemi M, Etemadifar M, Nasr-Esfahani MH (2015) miR-141 and miR-200a, revelation of new possible players in modulation of Th17/Treg differentiation and pathogenesis of multiple sclerosis. PLoS One 10:e0124555CrossRefPubMedPubMedCentralGoogle Scholar
- Polman CH, Reingold SC, Banwell B, Clanet M, Cohen JA, Filippi M, Fujihara K, Havrdova E, Hutchinson M, Kappos L, Lublin FD, Montalban X, O'Connor P, Sandberg-Wollheim M, Thompson AJ, Waubant E, Weinshenker B, Wolinsky JS (2011) Diagnostic criteria for multiple sclerosis: 2010 revisions to the McDonald criteria. Ann Neurol 69:292–302CrossRefPubMedPubMedCentralGoogle Scholar
- Robinson WH, Genovese MC, Moreland LW (2001) Demyelinating and neurologic events reported in association with tumor necrosis factor alpha antagonism: by what mechanisms could tumor necrosis factor alpha antagonists improve rheumatoid arthritis but exacerbate multiple sclerosis? Arthritis Rheum 44:1977–1983CrossRefPubMedGoogle Scholar
- Sayad, A., Ghafouri-Fard, S., Omrani, M. D., Noroozi, R. & Taheri, M. 2017. Myxovirus resistance protein A (MxA) polymorphism is associated with IFNbeta response in Iranian multiple sclerosis patients. Neurol SciGoogle Scholar