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MicroRNA-133b Alleviates Hypoxia Injury by Direct Targeting on NOD-Like Receptor Protein 3 in Rat H9c2 Cardiomyocyte
OBJECTIVE: MiR-133b was dysregulated in myocardial infarction. However, the role and mechanism of miR-133b in myocardial infarction remains unclear. This study was aimed to explore the role of miR-133b in H9c2 cell injury induced by hypoxia and to investigate the underlying molecular mechanism. METH...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6925740/ https://www.ncbi.nlm.nih.gov/pubmed/31885905 http://dx.doi.org/10.1155/2019/8092461 |
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author | Zhou, Yongmei Huang, Hui Hou, Xiaolin |
author_facet | Zhou, Yongmei Huang, Hui Hou, Xiaolin |
author_sort | Zhou, Yongmei |
collection | PubMed |
description | OBJECTIVE: MiR-133b was dysregulated in myocardial infarction. However, the role and mechanism of miR-133b in myocardial infarction remains unclear. This study was aimed to explore the role of miR-133b in H9c2 cell injury induced by hypoxia and to investigate the underlying molecular mechanism. METHODS: Cell injury was assessed by cell viability, migration, invasion, and apoptosis assays. The expression of miR-133b and nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) mRNA was determined by qRT-PCR. The levels of apoptosis-related proteins and NLRP3 were detected by western blotting. RESULTS: Results showed that hypoxia significantly reduced cell viability, migration, and invasion, but increased apoptosis of H9c2 cells. Downregulation of miR-133b aggravated the cell injury induced by hypoxia. MiR-133b was directly targeted on NLRP3. Overexpression of NLRP3 significantly inhibited cell viability, migration, and invasion but induced cell apoptosis in H9c2 treated with hypoxia. CONCLUSIONS: Thus, miR-133b protects H9c2 against hypoxia injury via downregulation of NLRP3. |
format | Online Article Text |
id | pubmed-6925740 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Hindawi |
record_format | MEDLINE/PubMed |
spelling | pubmed-69257402019-12-29 MicroRNA-133b Alleviates Hypoxia Injury by Direct Targeting on NOD-Like Receptor Protein 3 in Rat H9c2 Cardiomyocyte Zhou, Yongmei Huang, Hui Hou, Xiaolin Cardiol Res Pract Research Article OBJECTIVE: MiR-133b was dysregulated in myocardial infarction. However, the role and mechanism of miR-133b in myocardial infarction remains unclear. This study was aimed to explore the role of miR-133b in H9c2 cell injury induced by hypoxia and to investigate the underlying molecular mechanism. METHODS: Cell injury was assessed by cell viability, migration, invasion, and apoptosis assays. The expression of miR-133b and nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) mRNA was determined by qRT-PCR. The levels of apoptosis-related proteins and NLRP3 were detected by western blotting. RESULTS: Results showed that hypoxia significantly reduced cell viability, migration, and invasion, but increased apoptosis of H9c2 cells. Downregulation of miR-133b aggravated the cell injury induced by hypoxia. MiR-133b was directly targeted on NLRP3. Overexpression of NLRP3 significantly inhibited cell viability, migration, and invasion but induced cell apoptosis in H9c2 treated with hypoxia. CONCLUSIONS: Thus, miR-133b protects H9c2 against hypoxia injury via downregulation of NLRP3. Hindawi 2019-11-12 /pmc/articles/PMC6925740/ /pubmed/31885905 http://dx.doi.org/10.1155/2019/8092461 Text en Copyright © 2019 Yongmei Zhou et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Zhou, Yongmei Huang, Hui Hou, Xiaolin MicroRNA-133b Alleviates Hypoxia Injury by Direct Targeting on NOD-Like Receptor Protein 3 in Rat H9c2 Cardiomyocyte |
title | MicroRNA-133b Alleviates Hypoxia Injury by Direct Targeting on NOD-Like Receptor Protein 3 in Rat H9c2 Cardiomyocyte |
title_full | MicroRNA-133b Alleviates Hypoxia Injury by Direct Targeting on NOD-Like Receptor Protein 3 in Rat H9c2 Cardiomyocyte |
title_fullStr | MicroRNA-133b Alleviates Hypoxia Injury by Direct Targeting on NOD-Like Receptor Protein 3 in Rat H9c2 Cardiomyocyte |
title_full_unstemmed | MicroRNA-133b Alleviates Hypoxia Injury by Direct Targeting on NOD-Like Receptor Protein 3 in Rat H9c2 Cardiomyocyte |
title_short | MicroRNA-133b Alleviates Hypoxia Injury by Direct Targeting on NOD-Like Receptor Protein 3 in Rat H9c2 Cardiomyocyte |
title_sort | microrna-133b alleviates hypoxia injury by direct targeting on nod-like receptor protein 3 in rat h9c2 cardiomyocyte |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6925740/ https://www.ncbi.nlm.nih.gov/pubmed/31885905 http://dx.doi.org/10.1155/2019/8092461 |
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