Analysis of the Expression of Mir-34A, Mir-199A, Mir-30C and Mir-19A in Peripheral Blood Cd4+T Lymphocytes of Relapsing-Remitting Multiple Sclerosis Patients Publisher Pubmed



Ghadiri N^{1, 6} ; Emamnia N^{2, 3, 6} ; Ganjalikhanihakemi M⁴ ; Ghaedi K^{5, 6} ; Etemadifar M⁸ ; Salehi M⁷ ; Shirzad H¹ ; Nasresfahani MH⁶ Show Affiliations
Source: Gene Published:2018

Abstract

Background: Multiple sclerosis is an immune-mediated inflammatory disease of central nervous system. MicroRNAs play important roles in autoimmune diseases such as MS. Objectives: The aim was to evaluate the expression pattern of miR-34a, miR-199a, miR-30c and miR-19a in peripheral blood derived CD4+ T lymphocytes of both relapsing and remitting phases of MS. Methods: Blood samples from 40 RRMS patients (20 in relapsing and 20 in remitting phase) and 20 healthy volunteers were taken. CD4+ T cells were isolated. The expression level of miR-34a, miR-199a, miR-30c and miR-19a, and the percentage of Th17 and Treg cells were measured. Expression of master transcription factors of Th17 and Treg cells and several targets of these miRNAs were also evaluated. Results: Data indicated an increased expression of miR-34a, miR-30c and miR-19a in relapsing phase and decreased expression of miR-199a in remitting phase. ROC curve data add other prestigious information of miR-34a, miR-199a, miR-30c and miR-19a by defining relapsing and remitting phase and also healthy cases with high specificity and sensitivity at a proposed optimum cut-off point. Conclusion: Collectively, we showed a correlation between the four miRNAs with different phases of MS and their possible involvement in differentiation pathways of Th17 cells, as the most important players in MS. © 2018