Melanoma differentiation-associated protein 5 prevents cardiac hypertrophy via apoptosis signal-regulating kinase 1-c-Jun N-terminal kinase/p38 signaling
Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved..
Pathological cardiac hypertrophy (CH) is driven by maladaptive changes in myocardial cells in response to pressure overload or other stimuli. CH has been identified as a significant risk factor for the development of various cardiovascular diseases, ultimately resulting in heart failure. Melanoma differentiation-associated protein 5 (MDA5), encoded by interferon-induced with helicase C domain 1 (IFIH1), is a cytoplasmic sensor that primarily functions as a detector of double-stranded ribonucleic acid (dsRNA) viruses in innate immune responses; however, its role in CH pathogenesis remains unclear. Thus, the aim of this study was to examine the relationship between MDA5 and CH using cellular and animal models generated by stimulating neonatal rat cardiomyocytes with phenylephrine and by performing transverse aortic constriction on mice, respectively. MDA5 expression was upregulated in all models. MDA5 deficiency exacerbated myocardial pachynsis, fibrosis, and inflammation in vivo, whereas its overexpression hindered CH development in vitro. In terms of the underlying molecular mechanism, MDA5 inhibited CH development by promoting apoptosis signal-regulating kinase 1 (ASK1) phosphorylation, thereby suppressing c-Jun N-terminal kinase/p38 signaling pathway activation. Rescue experiments using an ASK1 activation inhibitor confirmed that ASK1 phosphorylation was essential for MDA5-mediated cell death. Thus, MDA5 protects against CH and is a potential therapeutic target.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:264 |
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| Enthalten in: |
International journal of biological macromolecules - 264(2024), Pt 1 vom: 05. Apr., Seite 130542 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Du, Bin-Bin [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 08.04.2024 Date Revised 08.04.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.ijbiomac.2024.130542 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM369221419 |
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| 520 | |a Pathological cardiac hypertrophy (CH) is driven by maladaptive changes in myocardial cells in response to pressure overload or other stimuli. CH has been identified as a significant risk factor for the development of various cardiovascular diseases, ultimately resulting in heart failure. Melanoma differentiation-associated protein 5 (MDA5), encoded by interferon-induced with helicase C domain 1 (IFIH1), is a cytoplasmic sensor that primarily functions as a detector of double-stranded ribonucleic acid (dsRNA) viruses in innate immune responses; however, its role in CH pathogenesis remains unclear. Thus, the aim of this study was to examine the relationship between MDA5 and CH using cellular and animal models generated by stimulating neonatal rat cardiomyocytes with phenylephrine and by performing transverse aortic constriction on mice, respectively. MDA5 expression was upregulated in all models. MDA5 deficiency exacerbated myocardial pachynsis, fibrosis, and inflammation in vivo, whereas its overexpression hindered CH development in vitro. In terms of the underlying molecular mechanism, MDA5 inhibited CH development by promoting apoptosis signal-regulating kinase 1 (ASK1) phosphorylation, thereby suppressing c-Jun N-terminal kinase/p38 signaling pathway activation. Rescue experiments using an ASK1 activation inhibitor confirmed that ASK1 phosphorylation was essential for MDA5-mediated cell death. Thus, MDA5 protects against CH and is a potential therapeutic target | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Apoptosis signal-regulating kinase | |
| 650 | 4 | |a Cardiac hypertrophy | |
| 650 | 4 | |a JNK/p38 | |
| 650 | 4 | |a Melanoma differentiation-associated protein 5 | |
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| 700 | 1 | |a Shi, Hui-Ting |e verfasserin |4 aut | |
| 700 | 1 | |a Xiao, Li-Li |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Ya-Peng |e verfasserin |4 aut | |
| 700 | 1 | |a Yao, Rui |e verfasserin |4 aut | |
| 700 | 1 | |a Liang, Cui |e verfasserin |4 aut | |
| 700 | 1 | |a Tian, Xiao-Xu |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Lu-Lu |e verfasserin |4 aut | |
| 700 | 1 | |a Kong, Ling-Yao |e verfasserin |4 aut | |
| 700 | 1 | |a Du, Jia-Qi |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Zhao-Zhi |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Yan-Zhou |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Zhen |e verfasserin |4 aut | |
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