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Medali T, Couchie D, Mougenot N, Mihoc M, Bergmann O, Derks W, Szweda LI, Yacoub M, Soliman S, Aguib Y, Wagdy K, Ibrahim AM, Friguet B, Rouis M. Thioredoxin-1 and its mimetic peptide improve systolic cardiac function and remodeling after myocardial infarction. FASEB J 2024; 38:e23291. [PMID: 38095283 DOI: 10.1096/fj.202300792rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 10/14/2023] [Accepted: 10/24/2023] [Indexed: 12/18/2023]
Abstract
Myocardial infarction (MI) is characterized by a significant loss of cardiomyocytes (CMs), and it is suggested that reactive oxygen species (ROS) are involved in cell cycle arrest, leading to impaired CM renewal. Thioredoxin-1 (Trx-1) scavenges ROS and may play a role in restoring CM renewal. However, the truncated form of Trx-1, Trx-80, can compromise its efficacy by exerting antagonistic effects. Therefore, a Trx-1 mimetic peptide called CB3 was tested as an alternative way to restore CMs. This study aimed to investigate the effects of Trx-1, Trx-80, and CB3 on mice with experimental MI and study the underlying mechanism of CB3 on CMs. Mouse cardiac parameters were quantified by echocardiography, and infarction size and fibrosis determined using Trichrome and Picro-Sirius Red staining. The study found that Trx-1 and CB3 improved mouse cardiac function, reduced the size of cardiac infarct and fibrosis, and decreased the expression of cardiac inflammatory markers. Furthermore, CB3 polarized macrophages into M2 phenotype, reduced apoptosis and oxidative stress after MI, and increased CM proliferation in cell culture and in vivo. CB3 effectively protected against myocardial infarction and could represent a new class of compounds for treating MI.
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Affiliation(s)
- Tania Medali
- CNRS, INSERM, Institut de Biologie Paris Seine, Biological Adaptation and Ageing (B2A-IBPS), Sorbonne Université, Paris, France
| | - Dominique Couchie
- CNRS, INSERM, Institut de Biologie Paris Seine, Biological Adaptation and Ageing (B2A-IBPS), Sorbonne Université, Paris, France
| | - Nathalie Mougenot
- Faculté de Médecine, INSERM, Plateforme PECMV, UMS28, Sorbonne Université, Paris, France
| | - Maria Mihoc
- Faculté de Médecine, INSERM, Plateforme PECMV, UMS28, Sorbonne Université, Paris, France
| | - Olaf Bergmann
- Department of Cell and Molecular Biology, Karolinska Institute, Stockholm, Sweden
- CRTD, TU Dresden, Dresden, Germany
| | - Wouter Derks
- Department of Cell and Molecular Biology, Karolinska Institute, Stockholm, Sweden
- CRTD, TU Dresden, Dresden, Germany
| | - Luke I Szweda
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | | | | | | | | | | | - Bertrand Friguet
- CNRS, INSERM, Institut de Biologie Paris Seine, Biological Adaptation and Ageing (B2A-IBPS), Sorbonne Université, Paris, France
| | - Mustapha Rouis
- CNRS, INSERM, Institut de Biologie Paris Seine, Biological Adaptation and Ageing (B2A-IBPS), Sorbonne Université, Paris, France
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Medali T, Couchie D, Rouis M, Friguet B. The thioredoxin system in ischemic heart mice. Archives of Cardiovascular Diseases Supplements 2022. [DOI: 10.1016/j.acvdsp.2022.04.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Couchie D, Medali T, Diderot V, Raymondjean M, Friguet B, Rouis M. Circadian rhythmicity of the thioredoxin system in cultured murine peritoneal macrophages. Biochimie 2022; 198:76-85. [PMID: 35341928 DOI: 10.1016/j.biochi.2022.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/15/2022] [Accepted: 03/22/2022] [Indexed: 11/16/2022]
Abstract
Macrophages play a pivotal role in atherosclerosis through a variety of events related to cellular oxidative stress. This process is mainly due to an excessive production of reactive oxygen species whose elimination occurs through antioxidant systems including the thioredoxin (Trx) system. In this paper, we investigated whether the Trx system would exhibit circadian rhythmicity in dexamethasone synchronized cultured macrophages and monitored the impact of the rhythmicity of Trx-1 on markers of atherosclerosis. We found that the clock-related genes BMAL-1, PER-2, CRY-1 and REV ERB α exhibited a robust circadian expression. However, the Trx genes family (Trx-1, Trx-2, TrxR1 and TXNIP) did not exhibit a circadian expression at the mRNA level in spite of the presence of E-box elements within the promoter regions of TrxR1 and TXNIP genes. Nevertheless, both Trx-1 and TXNIP exhibited a circadian expression at the protein level and proteasome inhibition abolished the rhythmicity of Trx-1. Moreover, we found a link between low Trx-1 level and elevated atherogenic markers such as 4-HNE, TNF-α and cholesterol accumulation in macrophages. Our results indicate that the Trx gene family does not exhibit the same circadian regulation and that the presence of E-box elements in the TXNIP promoter is not sufficient to ensure a circadian rhythmicity at the transcriptional level. In addition, since a link was found between a low level of Trx-1 protein during circadian rhythm and high levels of atherogenic markers, administration of Trx-1 at certain time points could be an interesting approach to protect against atherosclerosis development.
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Affiliation(s)
- D Couchie
- Sorbonne Université, CNRS, INSERM, Institut de Biologie Paris Seine, Biological Adaptation and Ageing (B2A-IBPS), F-75005, Paris, France
| | - T Medali
- Sorbonne Université, CNRS, INSERM, Institut de Biologie Paris Seine, Biological Adaptation and Ageing (B2A-IBPS), F-75005, Paris, France
| | - V Diderot
- Sorbonne Université, CNRS, INSERM, Institut de Biologie Paris Seine, Biological Adaptation and Ageing (B2A-IBPS), F-75005, Paris, France
| | - M Raymondjean
- Sorbonne Université, CNRS, INSERM, Institut de Biologie Paris Seine, Biological Adaptation and Ageing (B2A-IBPS), F-75005, Paris, France
| | - B Friguet
- Sorbonne Université, CNRS, INSERM, Institut de Biologie Paris Seine, Biological Adaptation and Ageing (B2A-IBPS), F-75005, Paris, France
| | - M Rouis
- Sorbonne Université, CNRS, INSERM, Institut de Biologie Paris Seine, Biological Adaptation and Ageing (B2A-IBPS), F-75005, Paris, France.
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