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genetics

Olivia Trummer, Ines Foessl, Natascha Schweighofer, Edi Arifi, Christoph W Haudum, Sharmaine Reintar, Stefan Pilz, Verena Theiler-Schwetz, Christian Trummer, Andreas Zirlik, Albrecht Schmidt, Caterina Colantonio, Ewald Kolesnik, Nicolas Verheyen, Thomas R Pieber, Barbara Obermayer-Pietsch

1
Jan 19, 2022
Genes
DOI :
10.3390/genes13020171
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Hashimoto's thyroiditis (HT) is the most prevalent autoimmune disorder of the thyroid (AITD) and characterized by the presence of circulating autoantibodies evoked by a, to date, not fully understood dysregulation of the immune system. Autoreactive lymphocytes and inflammatory processes in the thyroid gland can impair or enhance thyroid hormone secretion. MicroRNAs (miRNAs) are small noncoding RNAs, which can play a pivotal role in immune functions and the development of autoimmunity. The aim of the present study was to evaluate whether the expression of 9 selected miRNAs related to immunological functions differ in patients with HT compared to healthy controls. MiRNA profiles were analysed using quantitative reverse transcription polymerase chain reaction (qRT-PCR) in 24 patients with HT and 17 healthy controls. Systemic expressions of miR-21-5p, miR-22-3p, miR-22-5p, miR-142-3p, miR-146a-5p, miR-301-3p and miR-451 were significantly upregulated in patients with HT (p ≤ 0.01) and were suitable to discriminate between HT and healthy controls in AUC analysis. Altered expressions of miR-22-5p and miR-142-3p were associated with higher levels of thyroid antibodies, suggesting their contribution to the pathogenesis of HT.

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