1
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Sun S, Zhai W, Zhang R, Cai N. Deletion of Dux ameliorates muscular dystrophy in mdx mice by attenuating oxidative stress via Nrf2. FASEB J 2024; 38:e23771. [PMID: 38989564 DOI: 10.1096/fj.202400195r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 05/29/2024] [Accepted: 06/17/2024] [Indexed: 07/12/2024]
Abstract
DUX4 has been widely reported in facioscapulohumeral muscular dystrophy, but its role in Duchenne muscular dystrophy (DMD) is unclear. Dux is the mouse paralog of DUX4. In Dux-/- mdx mice, forelimb grip strength test and treadmill test were performed, and extensor digitorum longus (EDL) contraction properties were measured to assess skeletal muscle function. Pathological changes in mice were determined by serum CK and LDH levels and muscle Masson staining. Inflammatory factors, oxidative stress, and mitochondrial function indicators were detected using kits. Primary muscle satellite cells were isolated, and the antioxidant molecule Nrf2 was detected. MTT assay and Edu assay were used to evaluate proliferation and TUNEL assay for cell death. The results show that the deletion of Dux enhanced forelimb grip strength and EDL contractility, prolonged running time and distance in mdx mice. Deleting Dux also attenuated muscle fibrosis, inflammation, oxidative stress, and mitochondrial dysfunction in mdx mice. Furthermore, Dux deficiency promoted proliferation and survival of muscle satellite cells by increasing Nrf2 levels in mdx mice.
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Affiliation(s)
- Siyuan Sun
- Department of Children Health Care, Northwest Women's and Children's Hospital, Xi'an, Shaanxi, China
| | - Wen Zhai
- Department of Clinical Genetics, Northwest Women's and Children's Hospital, Xi'an, Shaanxi, China
| | - Ruixue Zhang
- Department of Clinical Genetics, Northwest Women's and Children's Hospital, Xi'an, Shaanxi, China
| | - Na Cai
- Department of Clinical Genetics, Northwest Women's and Children's Hospital, Xi'an, Shaanxi, China
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2
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Guedira G, Petermann O, Scapozza L, Ismail HM. Diapocynin treatment induces functional and structural improvements in an advanced disease state in the mdx 5Cv mice. Biomed Pharmacother 2024; 177:116957. [PMID: 38908198 DOI: 10.1016/j.biopha.2024.116957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 05/30/2024] [Accepted: 06/15/2024] [Indexed: 06/24/2024] Open
Abstract
Duchenne muscular dystrophy (DMD) is the most common muscular disorder affecting children. It affects nearly 1 male birth over 5000. Oxidative stress is a pervasive feature in the pathogenesis of DMD. Recent work shows that the main generators of ROS are NADPH oxidases (NOX), suggesting that they are an early and promising target in DMD. In addition, skeletal muscles of mdx mice, a murine model of DMD, overexpress NOXes. We investigated the impact of diapocynin, a dimer of the NOX inhibitor apocynin, on the chronic disease phase of mdx5Cv mice. Treatment of these mice with diapocynin from 7 to 10 months of age resulted in decreased hypertrophy of several muscles, prevented force loss induced by tetanic and eccentric contractions, improved muscle and respiratory functions, decreased fibrosis of the diaphragm and positively regulated the expression of disease modifiers. These encouraging results ensure the potential role of diapocynin in future treatment strategies.
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Affiliation(s)
- Ghali Guedira
- Pharmaceutical Biochemistry/Chemistry Group, School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland
| | - Olivier Petermann
- Pharmaceutical Biochemistry/Chemistry Group, School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland
| | - Leonardo Scapozza
- Pharmaceutical Biochemistry/Chemistry Group, School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland.
| | - Hesham M Ismail
- Pharmaceutical Biochemistry/Chemistry Group, School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland
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3
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Terrill JR, Bautista APR, Tsioutsias I, Grounds MD, Arthur PG. Oxidised Albumin Levels in Plasma and Skeletal Muscle as Biomarkers of Disease Progression and Treatment Efficacy in Dystrophic mdx Mice. Antioxidants (Basel) 2024; 13:720. [PMID: 38929159 PMCID: PMC11201235 DOI: 10.3390/antiox13060720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 06/05/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
Redox modifications to the plasma protein albumin have the potential to be used as biomarkers of disease progression and treatment efficacy in pathologies associated with inflammation and oxidative stress. One such pathology is Duchenne muscular dystrophy (DMD), a fatal childhood disease characterised by severe muscle wasting. We have previously shown in the mdx mouse model of DMD that plasma albumin thiol oxidation is increased; therefore, the first aim of this paper was to establish that albumin thiol oxidation in plasma reflects levels within mdx muscle tissue. We therefore developed a method to measure tissue albumin thiol oxidation. We show that albumin thiol oxidation was increased in both mdx muscle and plasma, with levels correlated with measures of dystropathology. In dystrophic muscle, albumin content was associated with areas of myonecrosis. The second aim was to test the ability of plasma thiol oxidation to track acute changes in dystropathology: we therefore subjected mdx mice to a single treadmill exercise session (known to increase myonecrosis) and took serial blood samples. This acute exercise caused a transient increase in total plasma albumin oxidation and measures of dystropathology. Together, these data support the use of plasma albumin thiol oxidation as a biomarker to track active myonecrosis in DMD.
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Affiliation(s)
- Jessica R. Terrill
- School of Molecular Sciences, The University of Western Australia, Perth, WA 6009, Australia; (J.R.T.); (A.P.R.B.); (I.T.)
| | - Angelo Patrick R. Bautista
- School of Molecular Sciences, The University of Western Australia, Perth, WA 6009, Australia; (J.R.T.); (A.P.R.B.); (I.T.)
| | - Irene Tsioutsias
- School of Molecular Sciences, The University of Western Australia, Perth, WA 6009, Australia; (J.R.T.); (A.P.R.B.); (I.T.)
- School of Human Sciences, The University of Western Australia, Perth, WA 6009, Australia;
| | - Miranda D. Grounds
- School of Human Sciences, The University of Western Australia, Perth, WA 6009, Australia;
| | - Peter G. Arthur
- School of Molecular Sciences, The University of Western Australia, Perth, WA 6009, Australia; (J.R.T.); (A.P.R.B.); (I.T.)
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4
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Cano-Martínez A, Rubio-Ruiz ME, Guarner-Lans V. Homeostasis and evolution in relation to regeneration and repair. J Physiol 2024; 602:2627-2648. [PMID: 38781025 DOI: 10.1113/jp284426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 05/01/2024] [Indexed: 05/25/2024] Open
Abstract
Homeostasis constitutes a key concept in physiology and refers to self-regulating processes that maintain internal stability when adjusting to changing external conditions. It diminishes internal entropy constituting a driving force behind evolution. Natural selection might act on homeostatic regulatory mechanisms and control mechanisms including homeodynamics, allostasis, hormesis and homeorhesis, where different stable stationary states are reached. Regeneration is under homeostatic control through hormesis. Damage to tissues initiates a response to restore the impaired equilibrium caused by mild stress using cell proliferation, cell differentiation and cell death to recover structure and function. Repair is a homeorhetic change leading to a new stable stationary state with decreased functionality and fibrotic scarring without reconstruction of the 3-D pattern. Mechanisms determining entrance of the tissue or organ to regeneration or repair include the balance between innate and adaptive immune cells in relation to cell plasticity and stromal stem cell responses, and redox balance. The regenerative and reparative capacities vary in different species, distinct tissues and organs, and at different stages of development including ageing. Many cell signals and pathways play crucial roles determining regeneration or repair by regulating protein synthesis, cellular growth, inflammation, proliferation, autophagy, lysosomal function, metabolism and metalloproteinase cell signalling. Attempts to favour the entrance of damaged tissues to regeneration in those with low proliferative rates have been made; however, there are evolutionary constraint mechanisms leading to poor proliferation of stem cells in unfavourable environments or tumour development. More research is required to better understand the regulatory processes of these mechanisms.
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Affiliation(s)
- Agustina Cano-Martínez
- Department of Physiology, Instituto Nacional de Cardiología Ignacio Chávez, México, México
| | | | - Verónica Guarner-Lans
- Department of Physiology, Instituto Nacional de Cardiología Ignacio Chávez, México, México
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5
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Xia S, Yan C, Gu J, Yuan Y, Zou H, Liu Z, Bian J. Resveratrol Alleviates Zearalenone-Induced Intestinal Dysfunction in Mice through the NF-κB/Nrf2/HO-1 Signalling Pathway. Foods 2024; 13:1217. [PMID: 38672890 PMCID: PMC11049466 DOI: 10.3390/foods13081217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/11/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
Zearalenone (ZEA), a mycotoxin widely present in crops and food, poses a major threat to animal and human health. The consumption of ZEA-contaminated food or feed causes intestinal damage. Therefore, exploring how to mitigate the intestinal damage caused by its ZEA is becoming increasingly important. Resveratrol (RSV), a polyphenol compound, mainly exists in Vitis vinifera, Polygonum cuspidatum, Arachis hypogaea, and other plants. It has potent anti-inflammatory and antioxidant activity. The primary objective of this study was to assess the defensive effects of RSV and its molecular mechanism on the intestinal mucosal injury induced by ZEA exposure in mice. The results showed that RSV pretreatment significantly reduced serum DAO and that D-lactate levels altered intestinal morphology and markedly restored TJ protein levels, intestinal goblet cell number, and MUC-2 gene expression after ZEA challenge. In addition, RSV significantly reversed serum pro-inflammatory factor levels and abnormal changes in intestinal MDA, CAT, and T-SOD. Additional research demonstrated that RSV decreased inflammation by blocking the translocation of nuclear factor-kappaB (NF-κB) p65 and decreased oxidative stress by activating the nuclear factor E2-related factor 2 (Nrf2) pathway and its associated antioxidant genes, including NQO1, γ-GCS, and GSH-PX. In summary, RSV supplementation attenuates intestinal oxidative stress, inflammation, and intestinal barrier dysfunction induced by ZEA exposure by mediating the NF-κB and Nrf2/HO-1 pathways.
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Affiliation(s)
- Sugan Xia
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.X.); (C.Y.); (J.G.); (Y.Y.); (H.Z.); (Z.L.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Chaoyue Yan
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.X.); (C.Y.); (J.G.); (Y.Y.); (H.Z.); (Z.L.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Jianhong Gu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.X.); (C.Y.); (J.G.); (Y.Y.); (H.Z.); (Z.L.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Yan Yuan
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.X.); (C.Y.); (J.G.); (Y.Y.); (H.Z.); (Z.L.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Hui Zou
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.X.); (C.Y.); (J.G.); (Y.Y.); (H.Z.); (Z.L.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.X.); (C.Y.); (J.G.); (Y.Y.); (H.Z.); (Z.L.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Jianchun Bian
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.X.); (C.Y.); (J.G.); (Y.Y.); (H.Z.); (Z.L.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
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6
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Achlaug L, Langier Goncalves I, Aronheim A. Cardioprotection and Suppression of Fibrosis by Diverse Cancer and Non-Cancer Cell Lines in a Murine Model of Duchenne Muscular Dystrophy. Int J Mol Sci 2024; 25:4273. [PMID: 38673859 PMCID: PMC11050177 DOI: 10.3390/ijms25084273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
The dynamic relationship between heart failure and cancer poses a dual challenge. While cardiac remodeling can promote cancer growth and metastasis, tumor development can ameliorate cardiac dysfunction and suppress fibrosis. However, the precise mechanism through which cancer influences the heart and fibrosis is yet to be uncovered. To further explore the interaction between heart failure and cancer, we used the MDX mouse model, which suffers from cardiac fibrosis and cardiac dysfunction. A previous study from our lab demonstrated that tumor growth improves cardiac dysfunction and dampens fibrosis in the heart and diaphragm muscles of MDX mice. We used breast Polyoma middle T (PyMT) and Lewis lung carcinoma (LLC) cancer cell lines that developed into large tumors. To explore whether the aggressiveness of the cancer cell line is crucial for the beneficial phenotype, we employed a PyMT breast cancer cell line lacking integrin β1, representing a less aggressive cell line compared to the original PyMT cells. In addition, we examined immortalized and primary MEF cells. The injection of integrin β1 KO PyMT cancer cells and Mouse Embryo Fibroblasts cells (MEF) resulted in the improvement of cardiac function and decreased fibrosis in the heart, diaphragm, and skeletal muscles of MDX mice. Collectively, our data demonstrate that the cancer line aggressiveness as well as primary MEF cells are sufficient to impose the beneficial phenotype. These discoveries present potential novel clinical therapeutic approaches with beneficial outcome for patients with fibrotic diseases and cardiac dysfunction that do not require tumor growth.
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Affiliation(s)
| | | | - Ami Aronheim
- Department of Cell Biology and Cancer Science, Ruth and Bruce Rappaport Faculty of Medicine, Technion—Israel Institute of Technology, P.O. Box 9649, Haifa 31096, Israel; (L.A.); (I.L.G.)
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7
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Casati SR, Cervia D, Roux-Biejat P, Moscheni C, Perrotta C, De Palma C. Mitochondria and Reactive Oxygen Species: The Therapeutic Balance of Powers for Duchenne Muscular Dystrophy. Cells 2024; 13:574. [PMID: 38607013 PMCID: PMC11011272 DOI: 10.3390/cells13070574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/18/2024] [Accepted: 03/22/2024] [Indexed: 04/13/2024] Open
Abstract
Duchenne muscular dystrophy (DMD) is a genetic progressive muscle-wasting disorder that leads to rapid loss of mobility and premature death. The absence of functional dystrophin in DMD patients reduces sarcolemma stiffness and increases contraction damage, triggering a cascade of events leading to muscle cell degeneration, chronic inflammation, and deposition of fibrotic and adipose tissue. Efforts in the last decade have led to the clinical approval of novel drugs for DMD that aim to restore dystrophin function. However, combination therapies able to restore dystrophin expression and target the myriad of cellular events found impaired in dystrophic muscle are desirable. Muscles are higher energy consumers susceptible to mitochondrial defects. Mitochondria generate a significant source of reactive oxygen species (ROS), and they are, in turn, sensitive to proper redox balance. In both DMD patients and animal models there is compelling evidence that mitochondrial impairments have a key role in the failure of energy homeostasis. Here, we highlighted the main aspects of mitochondrial dysfunction and oxidative stress in DMD and discussed the recent findings linked to mitochondria/ROS-targeted molecules as a therapeutic approach. In this respect, dual targeting of both mitochondria and redox homeostasis emerges as a potential clinical option in DMD.
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Affiliation(s)
- Silvia Rosanna Casati
- Department of Medical Biotechnology and Translational Medicine (BioMeTra), Università degli Studi di Milano, via Fratelli Cervi 93, 20054 Segrate, Italy; (S.R.C.); (C.D.P.)
| | - Davide Cervia
- Department for Innovation in Biological, Agro-Food and Forest Systems (DIBAF), Università degli Studi della Tuscia, Largo dell’Università snc, 01100 Viterbo, Italy;
| | - Paulina Roux-Biejat
- Department of Biomedical and Clinical Sciences (DIBIC), Università degli Studi di Milano, via G.B. Grassi 74, 20157 Milano, Italy; (P.R.-B.); (C.M.)
| | - Claudia Moscheni
- Department of Biomedical and Clinical Sciences (DIBIC), Università degli Studi di Milano, via G.B. Grassi 74, 20157 Milano, Italy; (P.R.-B.); (C.M.)
| | - Cristiana Perrotta
- Department of Biomedical and Clinical Sciences (DIBIC), Università degli Studi di Milano, via G.B. Grassi 74, 20157 Milano, Italy; (P.R.-B.); (C.M.)
| | - Clara De Palma
- Department of Medical Biotechnology and Translational Medicine (BioMeTra), Università degli Studi di Milano, via Fratelli Cervi 93, 20054 Segrate, Italy; (S.R.C.); (C.D.P.)
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8
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Al-Kuraishy HM, Al-Gareeb AI, Eldahshan OA, Abdelkhalek YM, El Dahshan M, Ahmed EA, Sabatier JM, Batiha GES. The possible role of nuclear factor erythroid-2-related factor 2 activators in the management of Covid-19. J Biochem Mol Toxicol 2024; 38:e23605. [PMID: 38069809 DOI: 10.1002/jbt.23605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 07/06/2023] [Accepted: 11/21/2023] [Indexed: 01/18/2024]
Abstract
COVID-19 is caused by a novel SARS-CoV-2 leading to pulmonary and extra-pulmonary manifestations due to oxidative stress (OS) development and hyperinflammation. COVID-19 is primarily asymptomatic though it may cause acute lung injury (ALI), acute respiratory distress syndrome (ARDS), systemic inflammation, and thrombotic events in severe cases. SARS-CoV-2-induced OS triggers the activation of different signaling pathways, which counterbalances this complication. One of these pathways is nuclear factor erythroid 2-related factor 2 (Nrf2), which induces a series of cellular interactions to mitigate SARS-CoV-2-mediated viral toxicity and OS-induced cellular injury. Nrf2 pathway inhibits the expression of pro-inflammatory cytokines and the development of cytokine storm in COVID-19. Therefore, Nrf2 activators may play an essential role in reducing SARS-CoV-2 infection-induced inflammation by suppressing NLRP3 inflammasome in COVID-19. Furthermore, Nrf2 activators can attenuate endothelial dysfunction (ED), renin-angiotensin system (RAS) dysregulation, immune thrombosis, and coagulopathy. Thus this mini-review tries to clarify the possible role of the Nrf2 activators in the management of COVID-19. Nrf2 activators could be an effective therapeutic strategy in the management of Covid-19. Preclinical and clinical studies are recommended in this regard.
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Affiliation(s)
- Hayder M Al-Kuraishy
- Department of Clinical Pharmacology and Medicine, College of Medicine, ALmustansiriyia University, Iraq
| | - Ali I Al-Gareeb
- Department of Clinical Pharmacology and Medicine, College of Medicine, ALmustansiriyia University, Iraq
| | - Omayma A Eldahshan
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo, Egypt
| | | | - Magdy El Dahshan
- Department of Internal Medicine, Faculty of Medicine, Al Azhar University, Cairo, Egypt
| | - Eman A Ahmed
- Department of Pharmacology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Jean-Marc Sabatier
- Institut de Neurophysiopathologie (INP), CNRS UMR 7051, Faculté des Sciences Médicales et Paramédicales, Aix-Marseille Université, Marseille, France
| | - Gaber E-S Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, AlBeheira, Egypt
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9
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Timpani CA, Kourakis S, Debruin DA, Campelj DG, Pompeani N, Dargahi N, Bautista AP, Bagaric RM, Ritenis EJ, Sahakian L, Debrincat D, Stupka N, Hafner P, Arthur PG, Terrill JR, Apostolopoulos V, de Haan JB, Guven N, Fischer D, Rybalka E. Dimethyl fumarate modulates the dystrophic disease program following short-term treatment. JCI Insight 2023; 8:e165974. [PMID: 37751291 PMCID: PMC10721277 DOI: 10.1172/jci.insight.165974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 09/20/2023] [Indexed: 09/27/2023] Open
Abstract
New medicines are urgently required to treat the fatal neuromuscular disease Duchenne muscular dystrophy (DMD). Dimethyl fumarate (DMF) is a potent immunomodulatory small molecule nuclear erythroid 2-related factor 2 activator with current clinical utility in the treatment of multiple sclerosis and psoriasis that could be effective for DMD and rapidly translatable. Here, we tested 2 weeks of daily 100 mg/kg DMF versus 5 mg/kg standard-care prednisone (PRED) treatment in juvenile mdx mice with early symptomatic DMD. Both drugs modulated seed genes driving the DMD disease program and improved force production in fast-twitch muscle. However, only DMF showed pro-mitochondrial effects, protected contracting muscles from fatigue, improved histopathology, and augmented clinically compatible muscle function tests. DMF may be a more selective modulator of the DMD disease program than PRED, warranting follow-up longitudinal studies to evaluate disease-modifying impact.
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Affiliation(s)
- Cara A. Timpani
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), St Albans, Victoria, Australia
- Department of Medicine – Western Health, Melbourne Medical School, The University of Melbourne, St Albans, Victoria, Australia
| | - Stephanie Kourakis
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), St Albans, Victoria, Australia
| | - Danielle A. Debruin
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), St Albans, Victoria, Australia
| | - Dean G. Campelj
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria, Australia
| | - Nancy Pompeani
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria, Australia
- Florey Institute of Neuroscience and Mental Health, Heidelberg, Victoria, Australia
| | - Narges Dargahi
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria, Australia
| | - Angelo P. Bautista
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Ryan M. Bagaric
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), St Albans, Victoria, Australia
| | - Elya J. Ritenis
- College of Health and Biomedicine, Victoria University, Melbourne, Victoria, Australia
| | - Lauren Sahakian
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria, Australia
- Department of Medicine – Western Health, Melbourne Medical School, The University of Melbourne, St Albans, Victoria, Australia
| | - Didier Debrincat
- College of Health and Biomedicine, Victoria University, Melbourne, Victoria, Australia
| | - Nicole Stupka
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), St Albans, Victoria, Australia
- Department of Medicine – Western Health, Melbourne Medical School, The University of Melbourne, St Albans, Victoria, Australia
| | - Patricia Hafner
- Division of Neuropaediatrics and Developmental Medicine, University Children’s Hospital of Basel (UKBB), Basel, Switzerland
| | - Peter G. Arthur
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Jessica R. Terrill
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Vasso Apostolopoulos
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), St Albans, Victoria, Australia
| | - Judy B. de Haan
- Basic Science Domain, Oxidative Stress Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Victoria, Australia
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, Victoria, Australia
- Faculty of Science, Engineering and Technology, Swinburne University, Melbourne, Victoria, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Parkville, Victoria, Australia
| | - Nuri Guven
- Department of Medicine – Western Health, Melbourne Medical School, The University of Melbourne, St Albans, Victoria, Australia
| | - Dirk Fischer
- Division of Neuropaediatrics and Developmental Medicine, University Children’s Hospital of Basel (UKBB), Basel, Switzerland
| | - Emma Rybalka
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), St Albans, Victoria, Australia
- Department of Medicine – Western Health, Melbourne Medical School, The University of Melbourne, St Albans, Victoria, Australia
- Division of Neuropaediatrics and Developmental Medicine, University Children’s Hospital of Basel (UKBB), Basel, Switzerland
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10
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Rybalka E, Kourakis S, Bonsett CA, Moghadaszadeh B, Beggs AH, Timpani CA. Adenylosuccinic Acid: An Orphan Drug with Untapped Potential. Pharmaceuticals (Basel) 2023; 16:822. [PMID: 37375769 PMCID: PMC10304260 DOI: 10.3390/ph16060822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/24/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
Adenylosuccinic acid (ASA) is an orphan drug that was once investigated for clinical application in Duchenne muscular dystrophy (DMD). Endogenous ASA participates in purine recycling and energy homeostasis but might also be crucial for averting inflammation and other forms of cellular stress during intense energy demand and maintaining tissue biomass and glucose disposal. This article documents the known biological functions of ASA and explores its potential application for the treatment of neuromuscular and other chronic diseases.
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Affiliation(s)
- Emma Rybalka
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, VIC 8001, Australia; (S.K.); (C.A.T.)
- Inherited and Acquired Myopathy Program, Australian Institute for Musculoskeletal Science (AIMSS), St Albans, VIC 3021, Australia
- Department of Medicine—Western Health, Melbourne Medical School, The University of Melbourne, St Albans, VIC 3021, Australia
- Division of Neuropaediatrics and Developmental Medicine, University Children’s Hospital of Basel (UKBB), 4056 Basel, Switzerland
| | - Stephanie Kourakis
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, VIC 8001, Australia; (S.K.); (C.A.T.)
- Inherited and Acquired Myopathy Program, Australian Institute for Musculoskeletal Science (AIMSS), St Albans, VIC 3021, Australia
| | - Charles A. Bonsett
- Dystrophy Concepts Incorporated, Indianapolis, IN 46226, USA;
- School of Medicine, Indiana University, Indianapolis, IN 46202, USA
| | - Behzad Moghadaszadeh
- The Manton Center for Orphan Disease Research, Division of Genetics and Genomics, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA; (B.M.); (A.H.B.)
| | - Alan H. Beggs
- The Manton Center for Orphan Disease Research, Division of Genetics and Genomics, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA; (B.M.); (A.H.B.)
| | - Cara A. Timpani
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, VIC 8001, Australia; (S.K.); (C.A.T.)
- Inherited and Acquired Myopathy Program, Australian Institute for Musculoskeletal Science (AIMSS), St Albans, VIC 3021, Australia
- Department of Medicine—Western Health, Melbourne Medical School, The University of Melbourne, St Albans, VIC 3021, Australia
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11
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Almeida-Becerril T, Rodríguez-Cruz M, Villa-Morales J, Sánchez-Mendoza CR, Galeazzi-Aguilar JE. Circulating Nrf2, Glutathione, and Malondialdehyde Correlate with Disease Severity in Duchenne Muscular Dystrophy. Antioxidants (Basel) 2023; 12:antiox12040871. [PMID: 37107246 PMCID: PMC10135301 DOI: 10.3390/antiox12040871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 04/29/2023] Open
Abstract
Oxidative stress (OS) plays an essential role in the pathophysiology of Duchenne muscular dystrophy (DMD). However, the actors that regulate OS need to be better studied. We aimed to evaluate whether NFE2-like bZIP transcription factor 2 (Nrf2), glutathione, malondialdehyde (MDA), and protein carbonyl concentrations change according to the disease severity in DMD patients. Moreover, we assessed whether OS correlated with muscle injury, clinical characteristics, physical activity, and antioxidant food consumption (AFC). A total of 28 DMD patients participated in this study. OS markers, metabolic indicators, and enzymatic markers of muscle injury were measured in circulation. Muscle injury was measured with clinical scales, and physical activity and AFC were evaluated with questionnaires. Nrf2 concentration was lower (p ≤ 0.01), and malondialdehyde concentration was higher (p < 0.05) in non-ambulatory patients than in ambulatory patients. Nrf2 correlated with age (rho = -0.387), Vignos scale (rho = -0.328), GMFCS scale (rho = -0.399), and Brooke scale scores (rho = -0.371) (p < 0.05). MDA correlated with Vignos (rho = 0.317) and Brooke scale scores (rho = 0.414) (p ≤ 0.05). In conclusion, DMD patients with the worst muscle function had more significant oxidative damage and lower antioxidant function than DMD patients with better muscle function.
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Affiliation(s)
- Tomas Almeida-Becerril
- Laboratorio de Nutrición Molecular, Unidad de Investigación Médica en Nutrición, Unidad Médica de Alta Especialidad Hospital de Pediatría "Dr. Silvestre Frenk Freund", Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Mexico City 06725, Mexico
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México (UNAM), Mexico City 04510, Mexico
| | - Maricela Rodríguez-Cruz
- Laboratorio de Nutrición Molecular, Unidad de Investigación Médica en Nutrición, Unidad Médica de Alta Especialidad Hospital de Pediatría "Dr. Silvestre Frenk Freund", Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Mexico City 06725, Mexico
| | - Judith Villa-Morales
- Laboratorio de Nutrición Molecular, Unidad de Investigación Médica en Nutrición, Unidad Médica de Alta Especialidad Hospital de Pediatría "Dr. Silvestre Frenk Freund", Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Mexico City 06725, Mexico
| | - Christian Ricardo Sánchez-Mendoza
- Departamento de Genética, Unidad Médica de Alta Especialidad Hospital General "Dr. Gaudencio González Garza", Centro Médico Nacional La Raza, Instituto Mexicano del Seguro Social(IMSS), Mexico City 02990, Mexico
| | - Jose Emilio Galeazzi-Aguilar
- Departamento de Genética Médica, Hospital de Pediatría "Dr. Silvestre Frenk Freund", Centro Médico Nacional Siglo XXI, IMSS, Mexico City 06725, Mexico
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12
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Synergistic effects of curcumin and gamma-oryzanol solid dispersions ameliorate muscle atrophy by upregulating Nrf2 and IGF1/Insulin-Akt-mTOR activities in middle-aged rats. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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13
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Bai K, Jiang L, Wei C, Li Q, Zhang L, Zhang J, Wang T. Dimethylglycine sodium salt activates Nrf2/SIRT1/PGC1α leading to the recovery of muscle stem cell dysfunction in newborns with intrauterine growth restriction. Free Radic Biol Med 2022; 184:89-98. [PMID: 35405266 DOI: 10.1016/j.freeradbiomed.2022.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/29/2022] [Accepted: 04/05/2022] [Indexed: 12/12/2022]
Abstract
The objectives of this study were focused on the mechanism of mitochondrial dysfunction in skeletal muscle stem cells (MuSCs) from intrauterine growth restriction (IUGR) newborn piglets, and the relief of dimethylglycine sodium salt (DMG-Na) on MuSCs mitochondrial dysfunction by Nrf2/SIRT1/PGC1α network. In this study, six newborn piglets with normal birth weight (NBW) and six IUGR newborn piglets were slaughtered immediately after birth to obtain longissimus dorsi muscle (LM) samples. MuSCs were collected and divided into three groups: MuSCs from NBW newborn piglets (N), MuSCs from IUGR newborn piglets (I), and MuSCs from IUGR newborn piglets with 32 μmol DMG-Na (ID). Compared with the NBW group, the IUGR group showed decreased (P < 0.05) serum and LM antioxidant defense capacity, and increased (P < 0.05) serum and LM damage. Compared with the N group, the I group showed decreased (P < 0.05) MuSCs antioxidant defense capacity, mitochondrial ETC complexes, energy metabolites, and antioxidant defense-related and mitochondrial function-related gene and protein expression levels. The antioxidant defense capacity, mitochondrial ETC complexes, energy metabolites, and antioxidant defense-related and mitochondrial function-related gene and protein expression levels of MuSCs were improved (P < 0.05) in the ID group compared to those in the I group. The MuSCs of IUGR newborns activate the Nrf2/SIRT1/PGC1α network by taking in DMG-Na, thereby neutralizing excessive generated O2•- that may help to improve their unfavorable mitochondrial dysfunction in skeletal muscle.
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Affiliation(s)
- Kaiwen Bai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Luyi Jiang
- College of Animal Science, Zhejiang University, Hangzhou, Zhejiang, 310000, China
| | - Chengheng Wei
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Qiming Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Lili Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Jingfei Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Tian Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China.
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14
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Agathokleous E. The hormetic response of heart rate of fish embryos to contaminants - Implications for research and policy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 815:152911. [PMID: 34999064 DOI: 10.1016/j.scitotenv.2021.152911] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 12/31/2021] [Accepted: 12/31/2021] [Indexed: 06/14/2023]
Abstract
Evidence of contaminant-induced hormesis is rapidly accumulating, while the underlying mechanisms of hormesis are becoming increasingly understood. Recent developments in this research area, and especially the emergence of the nuclear factor-erythroid factor 2-related factor 2 (Nrf2) as the master mechanism, suggest that contaminants can induce cardiac hormetic responses. This paper collates significant evidence of hormetic response of the heart rate of fish embryos to contaminants, in particular antibiotics, microplastics, and herbicides, characterized by a low-dose increase (tachycardia) and a high-dose decrease (bradycardia). The increase often occurs at doses about 100-800 times smaller than the no-observed-adverse-effect-level (NOAEL). There are also indications for even triphasic responses, which include a sub-hormetic decrease of the heart rate by doses over 106 times smaller than the NOAEL. Such sub-NOAEL effects cannot be captured by linear-no-threshold (LNT) and threshold models, raising concerns about environmental health and highlighting the pressing need to consider hormetic responses in the ecological risk assessment. A visionary way forward is proposed, but addressing this research bottleneck would require improved research designs with enhanced ability and statistical power to study diphasic and triphasic responses of heart rate.
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Affiliation(s)
- Evgenios Agathokleous
- School of Applied Meteorology, Nanjing University of Information Science & Technology (NUIST), 219 Ningliu Rd., Nanjing 210044, China.
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15
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Fovet T, Guilhot C, Delobel P, Chopard A, Py G, Brioche T. Ergothioneine Improves Aerobic Performance Without Any Negative Effect on Early Muscle Recovery Signaling in Response to Acute Exercise. Front Physiol 2022; 13:834597. [PMID: 35222093 PMCID: PMC8864143 DOI: 10.3389/fphys.2022.834597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 01/19/2022] [Indexed: 11/14/2022] Open
Abstract
Physical activity is now recognized as an essential element of healthy lifestyles. However, intensive and repeated exercise practice produces a high level of stress that must be managed, particularly oxidative damage and inflammation. Many studies investigated the effect of antioxidants, but reported only few positive effects, or even muscle recovery impairment. Secondary antioxidants are frequently highlighted as a way to optimize these interactions. Ergothioneine is a potential nutritional supplement and a secondary antioxidant that activates the cellular NRF2 pathway, leading to antioxidant response gene activation. Here, we hypothesized that ergothioneine could improve performance during aerobic exercise up to exhaustion and reduce exercise-related stress without impairing early muscle recovery signaling. To test this hypothesis, 5-month-old C56B6J female mice were divided in two groups matched for maximal aerobic speed (MAS): control group (Ctrl; n = 9) and group supplemented with 70 mg ergothioneine/kg/day (ET; n = 9). After 1 week of supplementation (or not), mice performed a maximum time-to-exhaustion test by running on a treadmill at 70% of their MAS, and gastrocnemius and soleus muscles were collected 2 h after exercise. Time to exhaustion was longer in the ET than Ctrl group (+41.22%, p < 0.01). Two hours after exercise, the ET group showed higher activation of protein synthesis and satellite cells, despite their longer effort. Conversely, expression in muscles of metabolic stress and inflammation markers was decreased, as well as oxidative damage markers in the ET group. Moreover, ergothioneine did not seem to impair mitochondrial recovery. These results suggest an important effect of ergothioneine on time-to-exhaustion performance and improved muscle recovery after exercise.
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Affiliation(s)
- Théo Fovet
- DMEM, INRAE, Montpellier University, Montpellier, France
| | | | - Pierre Delobel
- DMEM, INRAE, Montpellier University, Montpellier, France
| | - Angèle Chopard
- DMEM, INRAE, Montpellier University, Montpellier, France
| | - Guillaume Py
- DMEM, INRAE, Montpellier University, Montpellier, France
| | - Thomas Brioche
- DMEM, INRAE, Montpellier University, Montpellier, France
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16
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Seminotti B, Grings M, Tucci P, Leipnitz G, Saso L. Nuclear Factor Erythroid-2-Related Factor 2 Signaling in the Neuropathophysiology of Inherited Metabolic Disorders. Front Cell Neurosci 2021; 15:785057. [PMID: 34955754 PMCID: PMC8693715 DOI: 10.3389/fncel.2021.785057] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 11/05/2021] [Indexed: 01/14/2023] Open
Abstract
Inherited metabolic disorders (IMDs) are rare genetic conditions that affect multiple organs, predominantly the central nervous system. Since treatment for a large number of IMDs is limited, there is an urgent need to find novel therapeutical targets. Nuclear factor erythroid-2-related factor 2 (Nrf2) is a transcription factor that has a key role in controlling the intracellular redox environment by regulating the expression of antioxidant enzymes and several important genes related to redox homeostasis. Considering that oxidative stress along with antioxidant system alterations is a mechanism involved in the neuropathophysiology of many IMDs, this review focuses on the current knowledge about Nrf2 signaling dysregulation observed in this group of disorders characterized by neurological dysfunction. We review here Nrf2 signaling alterations observed in X-linked adrenoleukodystrophy, glutaric acidemia type I, hyperhomocysteinemia, and Friedreich’s ataxia. Additionally, beneficial effects of different Nrf2 activators are shown, identifying a promising target for treatment of patients with these disorders. We expect that this article stimulates research into the investigation of Nrf2 pathway involvement in IMDs and the use of potential pharmacological modulators of this transcription factor to counteract oxidative stress and exert neuroprotection.
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Affiliation(s)
- Bianca Seminotti
- Postgraduate Program in Biological Sciences: Biochemistry, Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Mateus Grings
- Postgraduate Program in Biological Sciences: Biochemistry, Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Paolo Tucci
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Guilhian Leipnitz
- Postgraduate Program in Biological Sciences: Biochemistry, Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.,Postgraduate Program in Biological Sciences: Physiology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Luciano Saso
- Department of Physiology and Pharmacology "Vittorio Erspamer", Sapienza University of Rome, Rome, Italy
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17
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Coombs GS, Rios-Monterrosa JL, Lai S, Dai Q, Goll AC, Ketterer MR, Valdes MF, Uche N, Benjamin IJ, Wallrath LL. Modulation of muscle redox and protein aggregation rescues lethality caused by mutant lamins. Redox Biol 2021; 48:102196. [PMID: 34872044 PMCID: PMC8646998 DOI: 10.1016/j.redox.2021.102196] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 11/19/2021] [Indexed: 12/28/2022] Open
Abstract
Mutations in the human LMNA gene cause a collection of diseases called laminopathies, which includes muscular dystrophy and dilated cardiomyopathy. The LMNA gene encodes lamins, filamentous proteins that form a meshwork on the inner side of the nuclear envelope. How mutant lamins cause muscle disease is not well understood, and treatment options are currently limited. To understand the pathological functions of mutant lamins so that therapies can be developed, we generated new Drosophila models and human iPS cell-derived cardiomyocytes. In the Drosophila models, muscle-specific expression of the mutant lamins caused nuclear envelope defects, cytoplasmic protein aggregation, activation of the Nrf2/Keap1 redox pathway, and reductive stress. These defects reduced larval motility and caused death at the pupal stage. Patient-derived cardiomyocytes expressing mutant lamins showed nuclear envelope deformations. The Drosophila models allowed for genetic and pharmacological manipulations at the organismal level. Genetic interventions to increase autophagy, decrease Nrf2/Keap1 signaling, or lower reducing equivalents partially suppressed the lethality caused by mutant lamins. Moreover, treatment of flies with pamoic acid, a compound that inhibits the NADPH-producing malic enzyme, partially suppressed lethality. Taken together, these studies have identified multiple new factors as potential therapeutic targets for LMNA-associated muscular dystrophy.
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Affiliation(s)
- Gary S Coombs
- Biology Department, Waldorf University, Forest City, IA, USA
| | | | - Shuping Lai
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Qiang Dai
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Ashley C Goll
- Department of Biochemistry & Molecular Biology, University of Iowa, Iowa City, IA, USA
| | - Margaret R Ketterer
- Department of Biochemistry & Molecular Biology, University of Iowa, Iowa City, IA, USA
| | - Maria F Valdes
- Biology Department, Waldorf University, Forest City, IA, USA
| | - Nnamdi Uche
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA; Department of Physiology, Medical College of Wisconsin, Milwaukee, WO, USA
| | - Ivor J Benjamin
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Lori L Wallrath
- Department of Biochemistry & Molecular Biology, University of Iowa, Iowa City, IA, USA.
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18
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A Bioassay-Guided Fractionation of Rosemary Leaf Extract Identifies Carnosol as a Major Hypertrophy Inducer in Human Skeletal Muscle Cells. Nutrients 2021; 13:nu13124190. [PMID: 34959741 PMCID: PMC8706380 DOI: 10.3390/nu13124190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/17/2021] [Accepted: 11/18/2021] [Indexed: 12/02/2022] Open
Abstract
A good quality of life requires maintaining adequate skeletal muscle mass and strength, but therapeutic agents are lacking for this. We developed a bioassay-guided fractionation approach to identify molecules with hypertrophy-promoting effect in human skeletal muscle cells. We found that extracts from rosemary leaves induce muscle cell hypertrophy. By bioassay-guided purification we identified the phenolic diterpene carnosol as the compound responsible for the hypertrophy-promoting activity of rosemary leaf extracts. We then evaluated the impact of carnosol on the different signaling pathways involved in the control of muscle cell size. We found that activation of the NRF2 signaling pathway by carnosol is not sufficient to mediate its hypertrophy-promoting effect. Moreover, carnosol inhibits the expression of the ubiquitin ligase E3 Muscle RING Finger protein-1 that plays an important role in muscle remodeling, but has no effect on the protein synthesis pathway controlled by the protein kinase B/mechanistic target of rapamycin pathway. By measuring the chymotrypsin-like activity of the proteasome, we found that proteasome activity was significantly decreased by carnosol and Muscle RING Finger 1 inactivation. These results strongly suggest that carnosol can induce skeletal muscle hypertrophy by repressing the ubiquitin-proteasome system-dependent protein degradation pathway through inhibition of the E3 ubiquitin ligase Muscle RING Finger protein-1.
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19
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Calabrese EJ, Agathokleous E, Kapoor R, Dhawan G, Kozumbo WJ, Calabrese V. Metformin-enhances resilience via hormesis. Ageing Res Rev 2021; 71:101418. [PMID: 34365027 DOI: 10.1016/j.arr.2021.101418] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/23/2021] [Accepted: 08/02/2021] [Indexed: 02/06/2023]
Abstract
The present paper demonstrates that metformin (MF) induced a broad spectrum of hormetic biphasic dose responses in a wide range of experimental studies, affecting multiple organ systems, cell types, and endpoints enhancing resilience to chemical stresses in preconditioning and co-current exposure protocols. Detailed mechanistic evaluations indicate that MF-induced hormetic-adaptive responses are mediated often via the activation of adenosine monophosphate-activated kinase (AMPK) protein and its subsequent upregulation of nuclear factor erythroid 2-related factor 2 (Nrf2). Hormesis-induced protective responses by MF are largely mediated via a vast and highly integrated anti-inflammatory molecular network that enhances longevity and delays the onset and slows the progression of neurodegenerative and other chronic diseases.
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20
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Sun CC, Zhou ZQ, Chen ZL, Zhu RK, Yang D, Peng XY, Zheng L, Tang CF. Identification of Potentially Related Genes and Mechanisms Involved in Skeletal Muscle Atrophy Induced by Excessive Exercise in Zebrafish. BIOLOGY 2021; 10:biology10080761. [PMID: 34439993 PMCID: PMC8389602 DOI: 10.3390/biology10080761] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/05/2021] [Accepted: 08/05/2021] [Indexed: 01/02/2023]
Abstract
Long-term imbalance between fatigue and recovery may eventually lead to muscle weakness or even atrophy. We previously reported that excessive exercise induces pathological cardiac hypertrophy. However, the effect of excessive exercise on the skeletal muscles remains unclear. In the present study, we successfully established an excessive-exercise-induced skeletal muscle atrophy zebrafish model, with decreased muscle fiber size, critical swimming speed, and maximal oxygen consumption. High-throughput RNA-seq analysis identified differentially expressed genes in the model system compared with control zebrafish. Gene ontology and KEGG enrichment analysis revealed that the upregulated genes were enriched in autophagy, homeostasis, circadian rhythm, response to oxidative stress, apoptosis, the p53 signaling pathway, and the FoxO signaling pathway. Protein-protein interaction network analysis identified several hub genes, including keap1b, per3, ulk1b, socs2, esrp1, bcl2l1, hsp70, igf2r, mdm2, rab18a, col1a1a, fn1a, ppih, tpx2, uba5, nhlrc2, mcm4, tac1, b3gat3, and ddost, that correlate with the pathogenesis of skeletal muscle atrophy induced by excessive exercise. The underlying regulatory pathways and muscle-pressure-response-related genes identified in the present study will provide valuable insights for prescribing safe and accurate exercise programs for athletes and the supervision and clinical treatment of muscle atrophy induced by excessive exercise.
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Affiliation(s)
| | | | | | | | | | | | - Lan Zheng
- Correspondence: (X.-Y.P.); (L.Z.); (C.-F.T.)
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21
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A Blood Biomarker for Duchenne Muscular Dystrophy Shows That Oxidation State of Albumin Correlates with Protein Oxidation and Damage in Mdx Muscle. Antioxidants (Basel) 2021; 10:antiox10081241. [PMID: 34439489 PMCID: PMC8389308 DOI: 10.3390/antiox10081241] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/14/2021] [Accepted: 07/29/2021] [Indexed: 12/31/2022] Open
Abstract
Duchenne muscular dystrophy (DMD) is a severe X-linked muscle wasting disease with no cure. While the precise mechanisms of progressive dystropathology remain unclear, oxidative stress caused by excessive generation of oxidants is strongly implicated. Blood biomarkers that could track oxidant levels in tissues would be valuable to measure the effectiveness of clinical treatments for DMD; our research has focused on developing such biomarkers. One target of oxidants that has the potential to be harnessed as a clinical biomarker is the thiol side chain of cysteine 34 (Cys34) of the blood protein albumin. This study using the mdx mouse model of DMD shows that in plasma, albumin Cys34 undergoes thiol oxidation and these changes correlate with levels of protein thiol oxidation and damage of the dystrophic muscles. A comparison with the commonly used biomarker protein carbonylation, confirmed that albumin thiol oxidation is the more sensitive plasma biomarker of oxidative stress occurring in muscle tissue. We show that plasma albumin oxidation reflects muscle dystropathology, as increased after exercise and decreased after taurine treatment of mdx mice. These data support the use of albumin thiol oxidation as a blood biomarker of dystropathology to assist with advancing clinical development of therapies for DMD.
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22
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Saccharomyces boulardii Ameliorates Dextran Sulfate Sodium-Induced Ulcerative Colitis in Mice by Regulating NF- κB and Nrf2 Signaling Pathways. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:1622375. [PMID: 34367460 PMCID: PMC8342159 DOI: 10.1155/2021/1622375] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/28/2021] [Indexed: 12/15/2022]
Abstract
Saccharomyces boulardii (S. boulardii) is a probiotic yeast that is widely used to treat gastrointestinal disorders. The present study is aimed to explore the therapeutic effects of S. boulardii on dextran sulfate sodium- (DSS-) induced murine ulcerative colitis (UC) and illustrate the mechanisms of action. C57BL/6 mice were administered S. boulardii (105 and 107 CFU/ml, p.o.) for 3 weeks and then given DSS [2.5% (w/v)] for one week. Administration of S. boulardii prevented DSS-induced reduction in body weight, diarrhea, bloody feces, decreased colon length, and loss of histological structure. Moreover, S. boulardii protected the intestinal barrier by increasing the levels of tight junction proteins zona occludens-1 and Occludin and exerted immunomodulatory effects in DSS-induced mice. Furthermore, S. boulardii suppressed the colonic inflammation by reducing the levels of Interleukin-1β, Interleukin-6, and Tumor necrosis factor alpha and restored myeloperoxidase activity in mice exposed to DSS. S. boulardii also mitigated colonic oxidative damage by increasing the levels of antioxidant enzymes (superoxide dismutase, catalase, and heme oxygenase 1) and glutathione and decreasing malondialdehyde accumulation. Further studies identified that S. boulardii suppressed the nuclear translocation of nuclear factor kappa B (NF-κB) p65 subunit by decreasing IκKα/β levels, while promoted the nuclear translocation of nuclear factor erythroid 2-related factor 2 (Nrf2) in DSS-exposed mice. Collectively, S. boulardii possessed an appreciable therapeutic effect against the experimental mice model of UC. The protective mechanism of S. boulardii may involve inhibition of NF-κB-mediated proinflammatory signaling and activation of Nrf2-modulated antioxidant defense in addition to intestinal barrier protective and immunomodulatory effects.
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23
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Calabrese EJ, Agathokleous E, Calabrese V. Ferulic acid and hormesis: Biomedical and environmental implications. Mech Ageing Dev 2021; 198:111544. [PMID: 34274398 DOI: 10.1016/j.mad.2021.111544] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 07/09/2021] [Accepted: 07/13/2021] [Indexed: 01/14/2023]
Abstract
The present paper provides the first systematic assessment of the capacity of ferulic acid to induce hormetic dose responses in biological systems. Ferulic acid induced hormetic effects in a broad range of animal models, affecting numerous biological endpoints, with particular focus on neuroprotective effects. Emerging evidence in multiple biomedical systems indicates that the hormetic effects of ferulic acid depend upon the activation of the transcription factor Nrf2. Ferulic acid was also shown to have an important role in ecological settings, being routinely released into the environment by numerous plant species, acting as an allelopathic agent affecting the growth of neighboring species via hormetic dose responses. These findings demonstrate the potential ecological and biomedical importance of ferulic acid effects and that these effects are commonly expressed via the hormetic dose response, suggesting complex multisystem evolutionary regulatory strategies.
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Affiliation(s)
- Edward J Calabrese
- Department of Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA, 01003, USA.
| | - Evgenios Agathokleous
- Key Laboratory of Agrometeorology of Jiangsu Province, Department of Ecology, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China.
| | - Vittorio Calabrese
- Department of Biomedical and Biotechnological Sciences, School of Medicine University of Catania, Via Santa Sofia 97, Catania, 95123, Italy.
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24
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Redox Homeostasis in Muscular Dystrophies. Cells 2021; 10:cells10061364. [PMID: 34205993 PMCID: PMC8229249 DOI: 10.3390/cells10061364] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 12/15/2022] Open
Abstract
In recent years, growing evidence has suggested a prominent role of oxidative stress in the pathophysiology of several early- and adult-onset muscle disorders, although effective antioxidant treatments are still lacking. Oxidative stress causes cell damage by affecting protein function, membrane structure, lipid metabolism, and DNA integrity, thus interfering with skeletal muscle homeostasis and functionality. Some features related to oxidative stress, such as chronic inflammation, defective regeneration, and mitochondrial damage are shared among most muscular dystrophies, and Nrf2 has been shown to be a central player in antagonizing redox imbalance in several of these disorders. However, the exact mechanisms leading to overproduction of reactive oxygen species and deregulation in the cellular antioxidants system seem to be, to a large extent, disease-specific, and the clarification of these mechanisms in vivo in humans is the cornerstone for the development of targeted antioxidant therapies, which will require testing in appropriately designed clinical trials.
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25
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Luo LF, Qin LY, Wang JX, Guan P, Wang N, Ji ES. Astragaloside IV Attenuates the Myocardial Injury Caused by Adriamycin by Inhibiting Autophagy. Front Pharmacol 2021; 12:669782. [PMID: 34108879 PMCID: PMC8184095 DOI: 10.3389/fphar.2021.669782] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 05/10/2021] [Indexed: 11/13/2022] Open
Abstract
Astragaloside IV (ASIV) is the main active component of Astragalus, and can ameliorate cardiomyocyte hypertrophy, apoptosis and fibrosis. In this experiment, we studied how ASIV reduces the cardiotoxicity caused by adriamycin and protects the heart. To this end, rats were randomly divided into the control, ADR, ADR + ASIV and ASIV groups (n = 6). Echocardiography was used to observe cardiac function, HE staining was used to observe myocardial injury, TUNEL staining was used to observe myocardial cell apoptosis, and immunofluorescence and Western blotting was used to observe relevant proteins expression. Experiments have shown that adriamycin can damage heart function in rats, and increase the cell apoptosis index, autophagy level and oxidative stress level. Further results showed that ADR can inhibit the PI3K/Akt pathway. ASIV treatment can significantly improve the cardiac function of rats treated with ADR and regulate autophagy, oxidative stress and apoptosis. Our findings indicate that ASIV may reduce the heart damage caused by adriamycin by activating the PI3K/Akt pathway.
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Affiliation(s)
- Li-Fei Luo
- Department of Physiology, School of Basic Medical Sciences, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Lu-Yun Qin
- Department of Physiology, School of Basic Medical Sciences, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Jian-Xin Wang
- Department of Physiology, School of Basic Medical Sciences, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Peng Guan
- Department of Physiology, School of Basic Medical Sciences, Hebei University of Chinese Medicine, Shijiazhuang, China.,Department of Physiology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Na Wang
- Department of Physiology, School of Basic Medical Sciences, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - En-Sheng Ji
- Department of Physiology, School of Basic Medical Sciences, Hebei University of Chinese Medicine, Shijiazhuang, China
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26
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Kourakis S, Timpani CA, Campelj DG, Hafner P, Gueven N, Fischer D, Rybalka E. Standard of care versus new-wave corticosteroids in the treatment of Duchenne muscular dystrophy: Can we do better? Orphanet J Rare Dis 2021; 16:117. [PMID: 33663533 PMCID: PMC7934375 DOI: 10.1186/s13023-021-01758-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 02/18/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Pharmacological corticosteroid therapy is the standard of care in Duchenne Muscular Dystrophy (DMD) that aims to control symptoms and slow disease progression through potent anti-inflammatory action. However, a major concern is the significant adverse effects associated with long term-use. MAIN: This review discusses the pros and cons of standard of care treatment for DMD and compares it to novel data generated with the new-wave dissociative corticosteroid, vamorolone. The current status of experimental anti-inflammatory pharmaceuticals is also reviewed, with insights regarding alternative drugs that could provide therapeutic advantage. CONCLUSIONS Although novel dissociative steroids may be superior substitutes to corticosteroids, other potential therapeutics should be explored. Repurposing or developing novel pharmacological therapies capable of addressing the many pathogenic features of DMD in addition to anti-inflammation could elicit greater therapeutic advantages.
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Affiliation(s)
- Stephanie Kourakis
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, VIC, Australia
| | - Cara A Timpani
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, VIC, Australia.,Australian Institute for Musculoskeletal Science (AIMSS), St Albans, VIC, Australia
| | - Dean G Campelj
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, VIC, Australia.,Australian Institute for Musculoskeletal Science (AIMSS), St Albans, VIC, Australia
| | - Patricia Hafner
- Division of Neuropediatrics and Developmental Medicine, University Children's Hospital of Basel (UKBB), Basel, Switzerland
| | - Nuri Gueven
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS, Australia
| | - Dirk Fischer
- Division of Neuropediatrics and Developmental Medicine, University Children's Hospital of Basel (UKBB), Basel, Switzerland
| | - Emma Rybalka
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, VIC, Australia. .,Australian Institute for Musculoskeletal Science (AIMSS), St Albans, VIC, Australia.
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27
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Rybalka E, Goodman CA, Campelj DG, Hayes A, Timpani CA. Adenylosuccinic acid: a novel inducer of the cytoprotectant Nrf2 with efficacy in Duchenne muscular dystrophy. Curr Med Res Opin 2021; 37:465-467. [PMID: 33331789 DOI: 10.1080/03007995.2020.1865699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Adenylosuccinic acid (ASA) modifies Duchenne muscular dystrophy (DMD) progression in dystrophic mdx mice and human DMD patients. Despite an established role for ASA in augmenting metabolism and cellular energy homeostasis, our previous data suggests an undiscovered ulterior mode of action capable of modifying DMD disease course. Here, we identify ASA as a novel inducer of nuclear factor erythroid 2-related factor-2 (Nrf2), master regulator of the antioxidant and cytoprotective response to cell stress.
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Affiliation(s)
- Emma Rybalka
- Institute for Health and Sport, Victoria University, Melbourne, Australia
- Australian Institute for Musculoskeletal Science, Victoria University, St Albans, Australia
| | - Craig A Goodman
- Australian Institute for Musculoskeletal Science, Victoria University, St Albans, Australia
- Center for Muscle Research, Department of Physiology, The University of Melbourne, Parkville, Australia
| | - Dean G Campelj
- Institute for Health and Sport, Victoria University, Melbourne, Australia
- Australian Institute for Musculoskeletal Science, Victoria University, St Albans, Australia
| | - Alan Hayes
- Institute for Health and Sport, Victoria University, Melbourne, Australia
- Australian Institute for Musculoskeletal Science, Victoria University, St Albans, Australia
- Department of Medicine, Western Health, Melbourne Medical School, The University of Melbourne, Melbourne, Australia
| | - Cara A Timpani
- Institute for Health and Sport, Victoria University, Melbourne, Australia
- Australian Institute for Musculoskeletal Science, Victoria University, St Albans, Australia
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28
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Timpani CA, Rybalka E. Calming the (Cytokine) Storm: Dimethyl Fumarate as a Therapeutic Candidate for COVID-19. Pharmaceuticals (Basel) 2020; 14:15. [PMID: 33375288 PMCID: PMC7824470 DOI: 10.3390/ph14010015] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/23/2020] [Accepted: 12/23/2020] [Indexed: 12/15/2022] Open
Abstract
COVID-19 has rapidly spread worldwide and incidences of hospitalisation from respiratory distress are significant. While a vaccine is in the pipeline, there is urgency for therapeutic options to address the immune dysregulation, hyperinflammation and oxidative stress that can lead to death. Given the shared pathogenesis of severe cases of COVID-19 with aspects of multiple sclerosis and psoriasis, we propose dimethyl fumarate as a viable treatment option. Currently approved for multiple sclerosis and psoriasis, dimethyl fumarate is an immunomodulatory, anti-inflammatory and anti-oxidative drug that could be rapidly implemented into the clinic to calm the cytokine storm which drives severe COVID-19.
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Affiliation(s)
- Cara A. Timpani
- Institute for Health and Sport, Victoria University, Melbourne, VIC 8001, Australia;
- Australian Institute for Musculoskeletal Science, St Albans, VIC 3021, Australia
| | - Emma Rybalka
- Institute for Health and Sport, Victoria University, Melbourne, VIC 8001, Australia;
- Australian Institute for Musculoskeletal Science, St Albans, VIC 3021, Australia
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