Downregulated expression of miR-155, miR-17, and miR-181b, and upregulated expression of activation-induced cytidine deaminase and interferon-α in PBMCs from patients with SLE

Modern Rheumatology
Hagime KagaH Wakui

Abstract

Recent studies on systemic lupus erythematosus (SLE) revealed that microRNAs (miRNAs or miRs) were involved in its pathogenesis. However, only a limited number of miRNAs have been examined. We performed quantitative real-time reverse transcription-polymerase chain reaction analyses of peripheral blood mononuclear cells (PBMCs) obtained from 31 untreated SLE patients and 31 healthy subjects to examine the expression levels of miR-155, miR-17, and miR-181b, as well as those of activation-induced cytidine deaminase (AID) and interferon-α (IFN-α) messenger RNAs (mRNAs). We examined the relationship between miR-181b, AID, and IFN-α with a luciferase reporter assay. The expression levels of miR-155, miR-17, and miR-181b were significantly lower in SLE patients than those in healthy controls, whereas those of AID and IFN-α mRNAs were significantly higher in SLE patients than those in healthy controls. The expression levels of miR-155, miR-17, and miR-181b inversely correlated with those of AID and IFN-α mRNAs in SLE patients. The results of the luciferase reporter assay revealed that miR-181b negatively regulated AID and IFN-α. The results of the present study demonstrated for the first time that there is a differential expression and...Continue Reading

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Citations

Jun 8, 2019·Epigenomics·Weilin ChenHonglin Zhu
Nov 25, 2016·Inflammation·Jin-Hui TaoXiang-Pei Li
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Mar 16, 2021·Frontiers in Endocrinology·Hélène Duez, Benoit Pourcet
Sep 3, 2021·Expert Reviews in Molecular Medicine·S A IbrahimA I Abdelaziz

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