Cited by 4Thyroid Disorders and TreatmentsMicroRNA in disease regulationThyroid and Parathyroid Surgery

The role of miRNA-624-5p in congenital hypothyroidism and its molecular mechanism by targeting SIRT1.

Wu, Wanli, Cao, Xuying, Wang, Yuhong·2022·Genes & Genomics

Abstract

Background Accumulating reports evidenced that congenital hypothyroidism (CH) is a kind of endocrine diseases caused by thyroid hormone imperfection. MicroRNAs (miRNAs) were confirmed to exhibit protective functions in CH progression. However, the functions and latent mechanism of microRNA-624-5p (miR-624-5p) in CH remains unknown.Objective This report was designed to illustrate the potential molecular mechanisms of miR-624-5p on CH.Methods Rats were induced by 50 mg/day propylthiouracil to conduct CH models. Free thyroxine (fT4) and thyroid-Stimulating hormone (TSH) concentrations were measured to confirm CH model conduction. The direct target of miR-624-5p was predicted and verified by Starbase and dual luciferase reporter assay. Besides, the levels of miR-624-5p and sirtuin1 (SIRT1) in hippocampus or hippocampal neuronal cells were assessed using quantitative real-time polymerase chain reaction (qRT-PCR) or Western blot assays. Then CH rat behaviors were evaluated using open field test (OFT) and forced swim test (FST). Furthermore, neuronal cells viability and apoptosis were checked using 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) and flow cytometry.Results qRT-PCR assay suggested that miR-624-5p was up-regulated and SIRT1 was low-expressed in hippocampus tissues of CH rats. SIRT1 was a direct target of miR-624-5p. MiR-624-5p inhibitor signally enhanced fT4 levels and reduced TSH levels in the plasma of CH rats, and improved CH rat depressive behaviors by targeting SIRT1. Moreover, our data also revealed that miR-624-5p inhibitor increased cell viability and reduced apoptotic neuronal cells, which was reversed by silencing of SIRT1.Conclusions Taken together, this research demonstrated that miR-624-5p serves as a promising target for CH treatment.

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Crossref · 10.1007/s13258-021-01171-3

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Authors
Wu, W., Cao, X., & Wang, Y.
Corresponding author
Wang, Yuhong
Venue
Genes & Genomics
Published
2021-10-05
Volume
44
Issue
9
Pages
1137-1147
ISSN
  • 1976-9571 (ISSN-L)
  • 2092-9293
OpenAlex
W3202470978
Cited by
4
References
32
Citations by year
2026: 1 · 2025: 1 · 2022: 2
FWCI
0.37
Type
journal article
Language
en
Open access
closed
Locations
  • Genes & Genomics (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Health Sciences › Medicine › Surgery › Thyroid and Parathyroid Surgery
Keywords
congenital hypothyroidism, SIRT1, microRNA, hippocampus, neuronal apoptosis, depression-like behavior, propylthiouracil-induced hypothyroidism, thyroid-stimulating hormone, free thyroxine, neuroprotection
MeSH terms
Animals, Congenital Hypothyroidism, Thyrotropin, Apoptosis, MicroRNAs, Rats, Sirtuin 1

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