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Marcadet L, Juracic ES, Khan N, Bouredji Z, Yagita H, Ward LM, Tupling AR, Argaw A, Frenette J. RANKL Inhibition Reduces Cardiac Hypertrophy in mdx Mice and Possibly in Children with Duchenne Muscular Dystrophy. Cells 2023; 12:1538. [PMID: 37296659 PMCID: PMC10253225 DOI: 10.3390/cells12111538] [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: 05/02/2023] [Revised: 05/25/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Cardiomyopathy has become one of the leading causes of death in patients with Duchenne muscular dystrophy (DMD). We recently reported that the inhibition of the interaction between the receptor activator of nuclear factor κB ligand (RANKL) and receptor activator of nuclear factor κB (RANK) significantly improves muscle and bone functions in dystrophin-deficient mdx mice. RANKL and RANK are also expressed in cardiac muscle. Here, we investigate whether anti-RANKL treatment prevents cardiac hypertrophy and dysfunction in dystrophic mdx mice. Anti-RANKL treatment significantly reduced LV hypertrophy and heart mass, and maintained cardiac function in mdx mice. Anti-RANKL treatment also inhibited NFκB and PI3K, two mediators implicated in cardiac hypertrophy. Furthermore, anti-RANKL treatment increased SERCA activity and the expression of RyR, FKBP12, and SERCA2a, leading possibly to an improved Ca2+ homeostasis in dystrophic hearts. Interestingly, preliminary post hoc analyses suggest that denosumab, a human anti-RANKL, reduced left ventricular hypertrophy in two patients with DMD. Taken together, our results indicate that anti-RANKL treatment prevents the worsening of cardiac hypertrophy in mdx mice and could potentially maintain cardiac function in teenage or adult patients with DMD.
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Affiliation(s)
- Laetitia Marcadet
- Centre Hospitalier Universitaire de Québec, Centre de Recherche du Centre Hospitalier de l’Université Laval (CHUQ-CHUL), Axe Neurosciences, Université Laval, Quebec City, QC G1V 4G2, Canada; (L.M.); (Z.B.); (A.A.)
| | - Emma Sara Juracic
- Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, ON N2L 3G1, Canada; (E.S.J.); (A.R.T.)
| | - Nasrin Khan
- The Ottawa Pediatric Bone Health Research Group, Children’s Hospital of Eastern Ontario Research Institute, Ottawa, ON K1H 8L1, Canada; (N.K.); (L.M.W.)
| | - Zineb Bouredji
- Centre Hospitalier Universitaire de Québec, Centre de Recherche du Centre Hospitalier de l’Université Laval (CHUQ-CHUL), Axe Neurosciences, Université Laval, Quebec City, QC G1V 4G2, Canada; (L.M.); (Z.B.); (A.A.)
| | - Hideo Yagita
- Department of Immunology, School of Medicine, Juntendo University, Tokyo 113-8421, Japan;
| | - Leanne M. Ward
- The Ottawa Pediatric Bone Health Research Group, Children’s Hospital of Eastern Ontario Research Institute, Ottawa, ON K1H 8L1, Canada; (N.K.); (L.M.W.)
- The Department of Pediatrics, University of Ottawa, Ottawa, ON K1H 8L1, Canada
| | - A. Russell Tupling
- Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, ON N2L 3G1, Canada; (E.S.J.); (A.R.T.)
| | - Anteneh Argaw
- Centre Hospitalier Universitaire de Québec, Centre de Recherche du Centre Hospitalier de l’Université Laval (CHUQ-CHUL), Axe Neurosciences, Université Laval, Quebec City, QC G1V 4G2, Canada; (L.M.); (Z.B.); (A.A.)
| | - Jérôme Frenette
- Centre Hospitalier Universitaire de Québec, Centre de Recherche du Centre Hospitalier de l’Université Laval (CHUQ-CHUL), Axe Neurosciences, Université Laval, Quebec City, QC G1V 4G2, Canada; (L.M.); (Z.B.); (A.A.)
- Department of Rehabilitation, Université Laval, Quebec City, QC G1V 0A6, Canada
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Liu X, Yao S, Pan M, Cai Y, Shentu W, Cai W, Yu H. Two-dimensional speckle tracking echocardiography demonstrates improved myocardial function after intravenous infusion of bone marrow mesenchymal stem in the X-Linked muscular dystrophy mice. BMC Cardiovasc Disord 2022; 22:461. [PMID: 36329408 PMCID: PMC9635191 DOI: 10.1186/s12872-022-02886-1] [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: 07/31/2022] [Accepted: 10/04/2022] [Indexed: 11/06/2022] Open
Abstract
Background Bone marrow mesenchymal stem cells (BMSCs) are commonly used in regenerative medicine. However, it is not clear whether transplantation of BMSCs can improve cardiac function of the X-Linked Muscular Dystrophy Mice (mdx) and how to detect it. We aimed to investigate the role of speckle tracking echocardiography (STE) in detecting cardiac function of the BMSCs-transplanted mdx in comparison with the untreated mdx. Methods The experimental mice were divided into the BMSCs-transplanted mdx, untreated mdx, and control mice groups (n = 6 per group). The BMSCs were transplanted via tail vein injections into a subset of mdx at 20 weeks of age. After four weeks, the cardiac functional parameters of all the mice in the 3 groups were analyzed by echocardiography. Then, all the mice were sacrificed, and the cardiac tissues were harvested and analyzed by immunofluorescence. The serum biochemical parameters were also analyzed to determine the beneficial effects of BMSCs transplantation. Results Traditional echocardiography parameters did not show statistically significant differences after BMSCs transplantation for the three groups of mice. In comparison with the control group, mdx showed significantly lower left ventricular (LV) STE parameters in both the long-axis and short-axis LV images (P < 0.05). However, BMSCs-transplanted mdx showed improvements in several STE parameters including significant increases in a few STE parameters (P < 0.05). Immunofluorescence staining of the myocardium tissues showed statistically significant differences between the mdx and the control mice (P < 0.05), and the mdx transplanted with BMSCs demonstrated significantly improvement compared with the untreated mdx (P < 0.05). Conclusion This study demonstrated that the early reduction in the LV systolic and diastolic function in the mdx were accurately detected by STE. Furthermore, our study demonstrated that the transplantation of BMSCs significantly improved myocardial function in the mdx.
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Affiliation(s)
- Xiao Liu
- Department of Ultrasonography, Shenzhen Hospital of Guangzhou University of Chinese Medicine (Fu-tian), Shenzhen, Guangdong, China
| | - Shixiang Yao
- Department of Ultrasonography, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Min Pan
- Department of Ultrasonography, Shenzhen Hospital of Guangzhou University of Chinese Medicine (Fu-tian), Shenzhen, Guangdong, China
| | - Yingying Cai
- Department of Ultrasonography, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Weihui Shentu
- Department of Ultrasonography, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wenqian Cai
- Heart Center, Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Hongkui Yu
- Department of Ultrasonography, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China. .,Department of Ultrasonography, Shenzhen Children's Hospital, Shenzhen, Guangdong, China.
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Cazorla O, Barthélémy I, Su JB, Meli AC, Chetboul V, Scheuermann V, Gouni V, Anglerot C, Richard S, Blot S, Ghaleh B, Lacampagne A. Stabilizing Ryanodine Receptors Improves Left Ventricular Function in Juvenile Dogs With Duchenne Muscular Dystrophy. J Am Coll Cardiol 2021; 78:2439-2453. [PMID: 34886965 DOI: 10.1016/j.jacc.2021.10.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/30/2021] [Accepted: 10/04/2021] [Indexed: 01/26/2023]
Abstract
BACKGROUND Duchenne muscular dystrophy is associated with progressive deterioration in left ventricular (LV) function. The golden retriever muscular dystrophy (GRMD) dog model recapitulates the pathology and clinical manifestations of Duchenne muscular dystrophy. Importantly, they develop progressive LV dysfunction starting at early age. OBJECTIVES The authors tested the cardioprotective effect of chronic administration of the ARM036, a small molecule that stabilizes the closed conformation of the cardiac sarcoplasmic reticulum ryanodine receptor/calcium release channel (RyR2) in young GRMD-dogs. METHODS Two-month-old GRMD-dogs were treated with ARM036 or placebo for 4 months. Healthy-dogs of the same genetic background served as controls. Cardiac function was evaluated by conventional and 2-dimensional speckle-tracking echocardiography. Cardiac cellular and molecular analyses were performed at 6 months old. RESULTS Conventional echocardiography showed normal LV dimensions and ejection fraction in 6-month-old GRMD dogs. Interestingly, 2-dimensional speckle-tracking echocardiography revealed decreased global longitudinal strain and the presence of hypokinetic segments in placebo-treated GRMD dogs. Single-channel measurements revealed higher RyR2 open probability at low resting Ca2+ in GRMD cardiomyocytes than in controls. ARM036 prevented those in vivo and in vitro dysfunctions in GRMD dogs. Myofilament Ca2+-sensitivity was increased in permeabilized GRMD cardiomyocytes at short sarcomere length. ARM036 had no effect on this parameter. Cross-bridge cycling kinetics were altered in GRMD myocytes and recovered with ARM036 treatment, which coincided with the level of myosin binding protein-C-S glutathionylation. CONCLUSIONS GRMD-dogs exhibit early LV dysfunction associated with altered myofilament contractile properties. These abnormalities were prevented pharmacologically by stabilizing RyR2 with ARM036.
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Affiliation(s)
- Olivier Cazorla
- Phymedexp INSERM, CNRS, Université de Montpellier, CHRU Montpellier, France.
| | - Inès Barthélémy
- Univ Paris Est Creteil, INSERM, IMRB, Creteil, France; EnvA, IMRB, Maisons-Alfort, France
| | - Jin Bo Su
- Univ Paris Est Creteil, INSERM, IMRB, Creteil, France; EnvA, IMRB, Maisons-Alfort, France
| | - Albano C Meli
- Phymedexp INSERM, CNRS, Université de Montpellier, CHRU Montpellier, France
| | - Valérie Chetboul
- Univ Paris Est Creteil, INSERM, IMRB, Creteil, France; EnvA, IMRB, Maisons-Alfort, France
| | | | - Vassiliky Gouni
- Univ Paris Est Creteil, INSERM, IMRB, Creteil, France; EnvA, IMRB, Maisons-Alfort, France
| | - Camille Anglerot
- Phymedexp INSERM, CNRS, Université de Montpellier, CHRU Montpellier, France
| | - Sylvain Richard
- Phymedexp INSERM, CNRS, Université de Montpellier, CHRU Montpellier, France
| | - Stéphane Blot
- Univ Paris Est Creteil, INSERM, IMRB, Creteil, France; EnvA, IMRB, Maisons-Alfort, France
| | - Bijan Ghaleh
- Univ Paris Est Creteil, INSERM, IMRB, Creteil, France; EnvA, IMRB, Maisons-Alfort, France
| | - Alain Lacampagne
- Phymedexp INSERM, CNRS, Université de Montpellier, CHRU Montpellier, France.
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