ArticleEndocrine2019
miR-762 modulates thyroxine-induced cardiomyocyte hypertrophy by inhibiting Beclin-1.
Article in Endocrine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- DAP1 regulates osteoblast autophagy via the ATG16L1-LC3 axis in Graves' disease-induced osteoporosis.Journal of orthopaedic surgery and research · 2023Article
- MicroRNA Alterations Induced in Human Skin by Diesel Fumes, Ozone, and UV Radiation.Journal of personalized medicine · 2022Article
Corrections and comments
- Erratum issued
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeWhether autophagy plays a key role in thyroxine-induced cardiomyocyte hypertrophy, and whether the role of autophagy in thyroxine-induced cardiomyocyte hypertrophy is related to targeting of Beclin-1 by miR-762 remains unclear. This research focused on testing these two hypotheses. Importantly, the results of this study will help us better understand the molecular mechanisms of thyroxine-induced cardiomyocyte hypertrophy.
methodsIn vivo and in vitro, RT-PCR, western blot, and dual luciferase reporter assay were performed to understand the molecular mechanism of thyroxine-induced cardiomyocyte hypertrophy. HE staining, Masson staining, transmission electron microscopy, and immunofluorescence were used to observe intuitively changes of hearts and cardiomyocytes.
resultsOur results showed that in vivo, serum TT3, TT4, and heart rate were significantly upregulated in the T4 group compared with the control group. Moreover, the surface area of cardiomyocytes was significantly increased in the T4 group, and the structural disorder was accompanied by obvious hyperplasia of collagen fibers. The expression of ANP, and β-MHC was significantly upregulated in the T4 group. In addition, LC3 II/LC3 I, Beclin-1 and the count of autophagic vacuoles were significantly upregulated, but miR-762 was significantly downregulated in the T4 group compared to the control group. Subsequently, a dual luciferase reporter assay suggested that Beclin-1 was the target gene of miR-762. In vitro, the results for the T3 group were consistent with the results for the T4 group. Furthermore, cardiomyocyte hypertrophy and autophagic activity were attenuated in the T3 + miR-762 mimic group compared with the T3 group. In contrast, cardiomyocyte hypertrophy and autophagic activity were aggravated in the T3 + miR-762 inhibitor group compared with the T3 group.
conclusionsmiR-762 modulates thyroxine-induced cardiomyocyte hypertrophy by inhibiting Beclin-1.
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Registered trials
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