Vol 7, No 4 (2018)
Research paper
Published online: 2018-09-11

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Overexpression of miR-652-5p in new onset type 1 diabetes

Magdalena Zurawek1, Agnieszka Dzikiewicz-Krawczyk1, Katarzyna Izykowska1, Iwona Ziolkowska-Suchanek1, Bogda Skowronska2, Maria Czainska3, Marta Kazimierska1, Marta Podralska1, Piotr Fichna2, Grzegorz Krzysztof Przybylski1, Jerzy Nowak1, Marta Fichna14, Natalia Rozwadowska1
Clin Diabetol 2018;7(4):189-195.

Abstract

Introduction. MicroRNAs (miRNAs) are small noncoding RNA regulating gene expression at the posttranscriptional level. miRNAs have emerged as an important regulators of central and peripheral immune tolerance, therefore study the RNA molecules in the context of type 1 diabetes (T1D) pathogenesis is an important issue. The aim of this study was to investigate miR-652-5p expression level in the new onset T1D and an impact on ADAR and MARCH5, potential target genes. Material and methods. The miR-652-5p expression was investigated in the peripheral blood mononuclear cell of newly diagnosed T1D pediatric patients (n = 28) and age-matched controls (n = 28) by quantitative reverse-transcription polymerase chain reaction (qRT-PCR). miRNA targets were analyzed by luciferase reporter assays. Results. Expression analysis revealed upregulation of miR-652-5p in T1D group compared to non-diabetic controls (p < 0.05). Luciferase reporter assay did not indicated ADAR and MARCH5 as miR-652-5p targets. Conclusion. Our study revealed miR-652-5p as potential marker of new onset type 1 diabetes.

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