Overexpression of miR-129-5p Mitigates Sepsis-Induced Acute Lung Injury by Targeting High Mobility Group Box 1
Copyright © 2020 Elsevier Inc. All rights reserved..
BACKGROUND: MicroRNAs are dysregulated in sepsis. Acute lung injury is a progressive syndrome during sepsis. However, the role of miR-129-5p in the development of acute lung injury induced by sepsis remains unclear.
METHODS: The acute lung injury of sepsis model was established by cecal ligation puncture (CLP)-treated mice and lipopolysaccharide (LPS)-treated murine alveolar epithelial cell line (MLE)-12 cells. The lung injury in vivo was investigated by hematoxylin and eosin staining, terminal dexynucleotidyl transferase (TdT)-mediated dUTP nick end labeling staining, enzyme-linked immunosorbent assay, lung wet-to-dry weight ratio, and myeloperoxidase activity. The lung injury in vitro was evaluated by 3-(4,5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide, flow cytometry, and enzyme-linked immunosorbent assay. The expression levels of miR-129-5p and high mobility group box 1 (HMGB1) were measured by quantitative real-time polymerase chain reaction and Western blot. The association between miR-129-5p and HMGB1 was validated by luciferase assay and RNA immunoprecipitation.
RESULTS: The expression of miR-129-5p was decreased in CLP model and LPS-treated MLE-12 cells. Overexpression of miR-129-5p attenuated inflammatory response, apoptosis, lung wet/dry weight ratio, and myeloperoxidase activity induced by CLP surgery in vivo. Moreover, addition of miR-129-5p increased cell viability and suppressed cell apoptosis and inflammatory response in vitro. HMGB1 as a target of miR-129-5p alleviated miR-129-5p-mediated injury suppression in LPS-treated MLE-12 cells.
CONCLUSIONS: miR-129-5p protects against sepsis-induced acute lung injury by decreasing HMGB1 expression, providing new target for sepsis treatment.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:256 |
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| Enthalten in: |
The Journal of surgical research - 256(2020) vom: 15. Dez., Seite 23-30 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Yang, Peng [VerfasserIn] |
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| Links: |
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| Themen: |
Acute lung injury |
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| Anmerkungen: |
Date Completed 10.03.2021 Date Revised 10.03.2021 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.jss.2020.05.101 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM31258444X |
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| 245 | 1 | 0 | |a Overexpression of miR-129-5p Mitigates Sepsis-Induced Acute Lung Injury by Targeting High Mobility Group Box 1 |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2020 Elsevier Inc. All rights reserved. | ||
| 520 | |a BACKGROUND: MicroRNAs are dysregulated in sepsis. Acute lung injury is a progressive syndrome during sepsis. However, the role of miR-129-5p in the development of acute lung injury induced by sepsis remains unclear | ||
| 520 | |a METHODS: The acute lung injury of sepsis model was established by cecal ligation puncture (CLP)-treated mice and lipopolysaccharide (LPS)-treated murine alveolar epithelial cell line (MLE)-12 cells. The lung injury in vivo was investigated by hematoxylin and eosin staining, terminal dexynucleotidyl transferase (TdT)-mediated dUTP nick end labeling staining, enzyme-linked immunosorbent assay, lung wet-to-dry weight ratio, and myeloperoxidase activity. The lung injury in vitro was evaluated by 3-(4,5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide, flow cytometry, and enzyme-linked immunosorbent assay. The expression levels of miR-129-5p and high mobility group box 1 (HMGB1) were measured by quantitative real-time polymerase chain reaction and Western blot. The association between miR-129-5p and HMGB1 was validated by luciferase assay and RNA immunoprecipitation | ||
| 520 | |a RESULTS: The expression of miR-129-5p was decreased in CLP model and LPS-treated MLE-12 cells. Overexpression of miR-129-5p attenuated inflammatory response, apoptosis, lung wet/dry weight ratio, and myeloperoxidase activity induced by CLP surgery in vivo. Moreover, addition of miR-129-5p increased cell viability and suppressed cell apoptosis and inflammatory response in vitro. HMGB1 as a target of miR-129-5p alleviated miR-129-5p-mediated injury suppression in LPS-treated MLE-12 cells | ||
| 520 | |a CONCLUSIONS: miR-129-5p protects against sepsis-induced acute lung injury by decreasing HMGB1 expression, providing new target for sepsis treatment | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Acute lung injury | |
| 650 | 4 | |a Apoptosis | |
| 650 | 4 | |a HMGB1 | |
| 650 | 4 | |a Inflammatory response | |
| 650 | 4 | |a Sepsis | |
| 650 | 4 | |a miR-129-5p | |
| 650 | 7 | |a HMGB1 Protein |2 NLM | |
| 650 | 7 | |a HMGB1 protein, mouse |2 NLM | |
| 650 | 7 | |a MIRN129 microRNA, mouse |2 NLM | |
| 650 | 7 | |a MicroRNAs |2 NLM | |
| 700 | 1 | |a Xiong, Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Xiaoxiang |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Jun |e verfasserin |4 aut | |
| 700 | 1 | |a Ye, Zhiqiang |e verfasserin |4 aut | |
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