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Fullenkamp DE, Willis AB, Curtin JL, Amaral AP, Dittloff KT, Harris SI, Chychula IA, Holgren CW, Burridge PW, Russell B, Demonbreun AR, McNally EM. Physiological stress improves stem cell modeling of dystrophic cardiomyopathy. Dis Model Mech 2024; 17:dmm050487. [PMID: 38050701 PMCID: PMC10820750 DOI: 10.1242/dmm.050487] [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: 08/31/2023] [Accepted: 11/22/2023] [Indexed: 12/06/2023] Open
Abstract
Heart failure contributes to Duchenne muscular dystrophy (DMD), which arises from mutations that ablate dystrophin, rendering the plasma membrane prone to disruption. Cardiomyocyte membrane breakdown in patients with DMD yields a serum injury profile similar to other types of myocardial injury with the release of creatine kinase and troponin isoforms. Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) are highly useful but can be improved. We generated hiPSC-CMs from a patient with DMD and subjected these cells to equibiaxial mechanical strain to mimic in vivo stress. Compared to healthy cells, DMD hiPSC-CMs demonstrated greater susceptibility to equibiaxial strain after 2 h at 10% strain. We generated an aptamer-based profile of proteins released from hiPSC-CMs both at rest and subjected to strain and identified a strong correlation in the mechanical stress-induced proteome from hiPSC-CMs and serum from patients with DMD. We exposed hiPSC-CMs to recombinant annexin A6, a protein resealing agent, and found reduced biomarker release in DMD and control hiPSC-CMs subjected to strain. Thus, the application of mechanical strain to hiPSC-CMs produces a model that reflects an in vivo injury profile, providing a platform to assess pharmacologic intervention.
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Affiliation(s)
- Dominic E. Fullenkamp
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Alexander B. Willis
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Jodi L. Curtin
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Ansel P. Amaral
- Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Kyle T. Dittloff
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Sloane I. Harris
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Ivana A. Chychula
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Cory W. Holgren
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Paul W. Burridge
- Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Brenda Russell
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Alexis R. Demonbreun
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Elizabeth M. McNally
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
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2
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Long AM, Kwon JM, Lee G, Reiser NL, Vaught LA, O'Brien JG, Page PGT, Hadhazy M, Reynolds JC, Crosbie RH, Demonbreun AR, McNally EM. The extracellular matrix differentially directs myoblast motility and differentiation in distinct forms of muscular dystrophy: Dystrophic matrices alter myoblast motility. Matrix Biol 2024; 129:44-58. [PMID: 38582404 DOI: 10.1016/j.matbio.2024.04.001] [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: 03/01/2024] [Revised: 04/03/2024] [Accepted: 04/04/2024] [Indexed: 04/08/2024]
Abstract
Extracellular matrix (ECM) pathologic remodeling underlies many disorders, including muscular dystrophy. Tissue decellularization removes cellular components while leaving behind ECM components. We generated "on-slide" decellularized tissue slices from genetically distinct dystrophic mouse models. The ECM of dystrophin- and sarcoglycan-deficient muscles had marked thrombospondin 4 deposition, while dysferlin-deficient muscle had excess decorin. Annexins A2 and A6 were present on all dystrophic decellularized ECMs, but annexin matrix deposition was excessive in dysferlin-deficient muscular dystrophy. Muscle-directed viral expression of annexin A6 resulted in annexin A6 in the ECM. C2C12 myoblasts seeded onto decellularized matrices displayed differential myoblast mobility and fusion. Dystrophin-deficient decellularized matrices inhibited myoblast mobility, while dysferlin-deficient decellularized matrices enhanced myoblast movement and differentiation. Myoblasts treated with recombinant annexin A6 increased mobility and fusion like that seen on dysferlin-deficient decellularized matrix and demonstrated upregulation of ECM and muscle cell differentiation genes. These findings demonstrate specific fibrotic signatures elicit effects on myoblast activity.
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Affiliation(s)
- Ashlee M Long
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Jason M Kwon
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - GaHyun Lee
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Nina L Reiser
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Lauren A Vaught
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Joseph G O'Brien
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Patrick G T Page
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Michele Hadhazy
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Joseph C Reynolds
- Department of Integrative Biology and Physiology, UCLA, Los Angeles, CA; Department of Neurology David Geffen School of Medicine, UCLA, Los Angeles, CA, USA
| | - Rachelle H Crosbie
- Department of Integrative Biology and Physiology, UCLA, Los Angeles, CA; Department of Neurology David Geffen School of Medicine, UCLA, Los Angeles, CA, USA
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
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3
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Ramachandran K, Futtner CR, Sommars MA, Quattrocelli M, Omura Y, Fruzyna E, Wang JC, Waldeck NJ, Senagolage MD, Telles CG, Demonbreun AR, Prendergast E, Lai N, Arango D, Bederman IR, McNally EM, Barish GD. Transcriptional programming of translation by BCL6 controls skeletal muscle proteostasis. Nat Metab 2024; 6:304-322. [PMID: 38337096 PMCID: PMC10949880 DOI: 10.1038/s42255-024-00983-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 01/09/2024] [Indexed: 02/12/2024]
Abstract
Skeletal muscle is dynamically controlled by the balance of protein synthesis and degradation. Here we discover an unexpected function for the transcriptional repressor B cell lymphoma 6 (BCL6) in muscle proteostasis and strength in mice. Skeletal muscle-specific Bcl6 ablation in utero or in adult mice results in over 30% decreased muscle mass and force production due to reduced protein synthesis and increased autophagy, while it promotes a shift to a slower myosin heavy chain fibre profile. Ribosome profiling reveals reduced overall translation efficiency in Bcl6-ablated muscles. Mechanistically, tandem chromatin immunoprecipitation, transcriptomic and translational analyses identify direct BCL6 repression of eukaryotic translation initiation factor 4E-binding protein 1 (Eif4ebp1) and activation of insulin-like growth factor 1 (Igf1) and androgen receptor (Ar). Together, these results uncover a bifunctional role for BCL6 in the transcriptional and translational control of muscle proteostasis.
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Affiliation(s)
- Krithika Ramachandran
- Division of Endocrinology, Metabolism, and Molecular Medicine, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Christopher R Futtner
- Division of Endocrinology, Metabolism, and Molecular Medicine, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
- Jesse Brown VA Medical Center, Chicago, IL, USA
| | - Meredith A Sommars
- Division of Endocrinology, Metabolism, and Molecular Medicine, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Mattia Quattrocelli
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
- Division of Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Yasuhiro Omura
- Division of Endocrinology, Metabolism, and Molecular Medicine, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
- Jesse Brown VA Medical Center, Chicago, IL, USA
| | - Ellen Fruzyna
- Division of Endocrinology, Metabolism, and Molecular Medicine, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Janice C Wang
- Division of Endocrinology, Metabolism, and Molecular Medicine, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Nathan J Waldeck
- Division of Endocrinology, Metabolism, and Molecular Medicine, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Madhavi D Senagolage
- Division of Endocrinology, Metabolism, and Molecular Medicine, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Carmen G Telles
- Division of Endocrinology, Metabolism, and Molecular Medicine, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Erin Prendergast
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Nicola Lai
- Department of Mechanical, Chemical, and Materials Engineering, University of Cagliari, Cagliari, Italy
| | - Daniel Arango
- Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Ilya R Bederman
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Grant D Barish
- Division of Endocrinology, Metabolism, and Molecular Medicine, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
- Jesse Brown VA Medical Center, Chicago, IL, USA.
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4
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O'Brien JG, Willis AB, Long AM, Kwon J, Lee G, Li FW, Page PG, Vo AH, Hadhazy M, Spencer MJ, Crosbie RH, Demonbreun AR, McNally EM. The super-healing MRL strain promotes muscle growth in muscular dystrophy through a regenerative extracellular matrix. JCI Insight 2024; 9:e173246. [PMID: 38175727 DOI: 10.1172/jci.insight.173246] [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: 06/21/2023] [Accepted: 12/21/2023] [Indexed: 01/05/2024] Open
Abstract
The Murphy Roths Large (MRL) mouse strain has "super-healing" properties that enhance recovery from injury. In mice, the DBA/2J strain intensifies many aspects of muscular dystrophy, so we evaluated the ability of the MRL strain to suppress muscular dystrophy in the Sgcg-null mouse model of limb girdle muscular dystrophy. A comparative analysis of Sgcg-null mice in the DBA/2J versus MRL strains showed greater myofiber regeneration, with reduced structural degradation of muscle in the MRL strain. Transcriptomic profiling of dystrophic muscle indicated strain-dependent expression of extracellular matrix (ECM) and TGF-β signaling genes. To investigate the MRL ECM, cellular components were removed from dystrophic muscle sections to generate decellularized myoscaffolds. Decellularized myoscaffolds from dystrophic mice in the protective MRL strain had significantly less deposition of collagen and matrix-bound TGF-β1 and TGF-β3 throughout the matrix. Dystrophic myoscaffolds from the MRL background, but not the DBA/2J background, were enriched in myokines like IGF-1 and IL-6. C2C12 myoblasts seeded onto decellularized matrices from Sgcg-/- MRL and Sgcg-/- DBA/2J muscles showed the MRL background induced greater myoblast differentiation compared with dystrophic DBA/2J myoscaffolds. Thus, the MRL background imparts its effect through a highly regenerative ECM, which is active even in muscular dystrophy.
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Affiliation(s)
- Joseph G O'Brien
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Alexander B Willis
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ashlee M Long
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jason Kwon
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - GaHyun Lee
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Frank W Li
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Patrick Gt Page
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Andy H Vo
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Michele Hadhazy
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Melissa J Spencer
- Department of Neurology, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Rachelle H Crosbie
- Department of Integrative Biology and Physiology, Department of Neurology, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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5
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Long AM, Lee G, Demonbreun AR, McNally EM. Extracellular matrix contribution to disease progression and dysfunction in myopathy. Am J Physiol Cell Physiol 2023; 325:C1244-C1251. [PMID: 37746696 PMCID: PMC10855263 DOI: 10.1152/ajpcell.00182.2023] [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: 05/09/2023] [Revised: 08/27/2023] [Accepted: 09/13/2023] [Indexed: 09/26/2023]
Abstract
Myopathic processes affect skeletal muscle and heart. In the muscular dystrophies, which are a subset of myopathies, muscle cells are gradually replaced by fibrosis and fat, impairing muscle function as well as regeneration and repair. In addition to skeletal muscle, these genetic disorders often also affect the heart, where fibrofatty infiltration progressively accumulates in the myocardium, impairing heart function. Although considerable effort has focused on gene-corrective and gene-replacement approaches to stabilize myofibers and cardiomyocytes, the continual and ongoing deposition of extracellular matrix itself contributes to tissue and organ dysfunction. Transcriptomic and proteomic profiling, along with high-resolution imaging and biophysical measurements, have been applied to define extracellular matrix components and their role in contributing to cardiac and skeletal muscle weakness. More recently, decellularization methods have been adapted to an on-slide format to preserve the spatial geography of the extracellular matrix, allowing new insight into matrix remodeling and its direct role in suppressing regeneration in muscle. This review highlights recent literature with focus on the extracellular matrix and molecular mechanisms that contribute to muscle and heart fibrotic disorders. We will also compare how the myopathic matrix differs from healthy matrix, emphasizing how the pathological matrix contributes to disease.
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Affiliation(s)
- Ashlee M Long
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
| | - GaHyun Lee
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
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6
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Hoffmann AD, Weinberg SE, Swaminathan S, Chaudhuri S, Almubarak HF, Schipma MJ, Mao C, Wang X, El-Shennawy L, Dashzeveg NK, Wei J, Mehl PJ, Shihadah LJ, Wai CM, Ostiguin C, Jia Y, D'Amico P, Wang NR, Luo Y, Demonbreun AR, Ison MG, Liu H, Fang D. Unique molecular signatures sustained in circulating monocytes and regulatory T cells in convalescent COVID-19 patients. Clin Immunol 2023; 252:109634. [PMID: 37150240 PMCID: PMC10162478 DOI: 10.1016/j.clim.2023.109634] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 02/20/2023] [Revised: 04/19/2023] [Accepted: 04/26/2023] [Indexed: 05/09/2023]
Abstract
Over two years into the COVID-19 pandemic, the human immune response to SARS-CoV-2 during the active disease phase has been extensively studied. However, the long-term impact after recovery, which is critical to advance our understanding SARS-CoV-2 and COVID-19-associated long-term complications, remains largely unknown. Herein, we characterized single-cell profiles of circulating immune cells in the peripheral blood of 100 patients, including convalescent COVID-19 and sero-negative controls. Flow cytometry analyses revealed reduced frequencies of both short-lived monocytes and long-lived regulatory T (Treg) cells within the patients who have recovered from severe COVID-19. sc-RNA seq analysis identifies seven heterogeneous clusters of monocytes and nine Treg clusters featuring distinct molecular signatures in association with COVID-19 severity. Asymptomatic patients contain the most abundant clusters of monocytes and Tregs expressing high CD74 or IFN-responsive genes. In contrast, the patients recovered from a severe disease have shown two dominant inflammatory monocyte clusters featuring S100 family genes: one monocyte cluster of S100A8 & A9 coupled with high HLA-I and another cluster of S100A4 & A6 with high HLA-II genes, a specific non-classical monocyte cluster with distinct IFITM family genes, as well as a unique TGF-β high Treg Cluster. The outpatients and seronegative controls share most of the monocyte and Treg clusters patterns with high expression of HLA genes. Surprisingly, while presumably short-lived monocytes appear to have sustained alterations over 4 months, the decreased frequencies of long-lived Tregs (high HLA-DRA and S100A6) in the outpatients restore over the tested convalescent time (≥ 4 months). Collectively, our study identifies sustained and dynamically altered monocytes and Treg clusters with distinct molecular signatures after recovery, associated with COVID-19 severity.
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Affiliation(s)
- Andrew D Hoffmann
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Sam E Weinberg
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Suchitra Swaminathan
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Division of Rheumatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Shuvam Chaudhuri
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Hannah Faisal Almubarak
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Matthew J Schipma
- NUseq Core Facility, Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Chengsheng Mao
- Division of Health and Biomedical Informatics, Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Xinkun Wang
- NUseq Core Facility, Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Lamiaa El-Shennawy
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Nurmaa K Dashzeveg
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Juncheng Wei
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Paul J Mehl
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Laura J Shihadah
- NUseq Core Facility, Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Ching Man Wai
- NUseq Core Facility, Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Carolina Ostiguin
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Yuzhi Jia
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Paolo D'Amico
- Division of Hematology and Oncology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Neale R Wang
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Yuan Luo
- Division of Health and Biomedical Informatics, Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Alexis R Demonbreun
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Michael G Ison
- Division of Infectious Disease, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Division of Organ Transplantation, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Respiratory Diseases Branch, Division of Microbiology and Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20892, USA.
| | - Huiping Liu
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Division of Hematology and Oncology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
| | - Deyu Fang
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
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7
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O’Brien JG, Willis AB, Long AM, Kwon J, Lee G, Li F, Page PG, Vo AH, Hadhazy M, Crosbie RH, Demonbreun AR, McNally EM. The super-healing MRL strain promotes muscle growth in muscular dystrophy through a regenerative extracellular matrix. bioRxiv 2023:2023.06.29.547098. [PMID: 37425960 PMCID: PMC10327155 DOI: 10.1101/2023.06.29.547098] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Genetic background shifts the severity of muscular dystrophy. In mice, the DBA/2J strain confers a more severe muscular dystrophy phenotype, whereas the Murphy's Roth Large (MRL) strain has "super-healing" properties that reduce fibrosis. A comparative analysis of the Sgcg null model of Limb Girdle Muscular Dystrophy in the DBA/2J versus MRL strain showed the MRL background was associated with greater myofiber regeneration and reduced structural degradation of muscle. Transcriptomic profiling of dystrophic muscle in the DBA/2J and MRL strains indicated strain-dependent expression of the extracellular matrix (ECM) and TGF-β signaling genes. To investigate the MRL ECM, cellular components were removed from dystrophic muscle sections to generate decellularized "myoscaffolds". Decellularized myoscaffolds from dystrophic mice in the protective MRL strain had significantly less deposition of collagen and matrix-bound TGF-β1 and TGF-β3 throughout the matrix, and dystrophic myoscaffolds from the MRL background were enriched in myokines. C2C12 myoblasts were seeded onto decellularized matrices from Sgcg-/- MRL and Sgcg-/- DBA/2J matrices. Acellular myoscaffolds from the dystrophic MRL background induced myoblast differentiation and growth compared to dystrophic myoscaffolds from the DBA/2J matrices. These studies establish that the MRL background also generates its effect through a highly regenerative ECM, which is active even in muscular dystrophy.
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Affiliation(s)
- Joseph G. O’Brien
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Alexander B. Willis
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Ashlee M. Long
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Jason Kwon
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - GaHyun Lee
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Frank Li
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Patrick G.T. Page
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | | | - Michele Hadhazy
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Rachelle H. Crosbie
- Department of Integrative Biology and Physiology, UCLA, Los Angeles, CA; Department of Neurology David Geffen School of Medicine, UCLA, Los Angeles, CA
| | - Alexis R. Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Elizabeth M. McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
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8
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Waters EA, Haney CR, Vaught LA, McNally EM, Demonbreun AR. New semi-automated tool for the quantitation of MR imaging to estimate in vivo muscle disease severity in mice. bioRxiv 2023:2023.05.23.541310. [PMID: 37293050 PMCID: PMC10245844 DOI: 10.1101/2023.05.23.541310] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The pathology in Duchenne muscular dystrophy (DMD) is characterized by degenerating muscle fibers, inflammation, fibro-fatty infiltrate, and edema, and these pathological processes replace normal healthy muscle tissue. The mdx mouse model is one of the most commonly used preclinical models to study DMD. Mounting evidence has emerged illustrating that muscle disease progression varies considerably in mdx mice, with inter-animal differences as well as intra-muscular differences in pathology in individual mdx mice. This variation is important to consider when conducting assessments of drug efficacy and in longitudinal studies. Magnetic resonance imaging (MRI) is a non-invasive method that can be used qualitatively or quantitatively to measure muscle disease progression in the clinic and in preclinical models. Although MR imaging is highly sensitive, image acquisition and analysis can be time intensive. The purpose of this study was to develop a semi-automated muscle segmentation and quantitation pipeline that can quickly and accurately estimate muscle disease severity in mice. Herein, we show that the newly developed segmentation tool accurately divides muscle. We show that measures of skew and interdecile range based on segmentation sufficiently estimate muscle disease severity in healthy wildtype and diseased mdx mice. Moreover, the semi-automated pipeline reduced analysis time by nearly 10-fold. Use of this rapid, non-invasive, semi-automated MR imaging and analysis pipeline has the potential to transform preclinical studies, allowing for pre-screening of dystrophic mice prior to study enrollment to ensure more uniform muscle disease pathology across treatment groups, improving study outcomes.
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Affiliation(s)
- Emily A. Waters
- Chemistry of Life Processes Institute and Biomedical Engineering, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Chad R. Haney
- Chemistry of Life Processes Institute and Biomedical Engineering, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Lauren. A Vaught
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Elizabeth M. McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Alexis R. Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
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9
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Kling KD, Janulis P, Demonbreun AR, Sancilio A, Berzins B, Krueger K, Achenbach C, Price R, Sullivan M, Caputo M, Hockney S, Zembower T, McDade TW, Taiwo B. No difference in anti-spike antibody and surrogate viral neutralization following SARS-CoV-2 booster vaccination in persons with HIV compared to controls (CO-HIV Study). Front Immunol 2023; 13:1048776. [PMID: 36700200 PMCID: PMC9868861 DOI: 10.3389/fimmu.2022.1048776] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 12/15/2022] [Indexed: 01/12/2023] Open
Abstract
Background Understanding the immune response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccination will enable accurate counseling and inform evolving vaccination strategies. Little is known about antibody response following booster vaccination in people living with HIV (PLWH). Methods We enrolled SARS-CoV-2 vaccinated PLWH and controls without HIV in similar proportions based on age and comorbidities. Participants completed surveys on prior SARS-CoV-2 infection, vaccination, and comorbidities, and provided self-collected dried blood spots (DBS). Quantitative anti-spike IgG and surrogate viral neutralization assays targeted wild-type (WT), Delta, and Omicron variants. We also measured quantitative anti-nucleocapsid IgG. The analysis population had received full SARS-CoV-2 vaccination plus one booster dose. Bivariate analyses for continuous outcomes utilized Wilcoxon tests and multivariate analysis used linear models. Results The analysis population comprised 140 PLWH and 75 controls with median age 58 and 55 years, males 95% and 43%, and DBS collection on 112 and 109 days after the last booster dose, respectively. Median CD4 count among PLWH was 760 cells/mm3 and 91% had an undetectable HIV-1 viral load. Considering WT, Delta, and Omicron variants, there was no significant difference in mean quantitative anti-spike IgG between PLWH (3.3, 2.9, 1.8) and controls (3.3, 2.9, 1.8), respectively (p-values=0. 771, 0.920, 0.708). Surrogate viral neutralization responses were similar in PLWH (1.0, 0.9, and 0.4) and controls (1.0, 0.9, 0.5), respectively (p-values=0.594, 0.436, 0.706). Conclusions PLWH whose CD4 counts are well preserved and persons without HIV have similar anti-spike IgG antibody levels and viral neutralization responses after a single SARS-CoV-2 booster vaccination.
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Affiliation(s)
- Kendall D. Kling
- Department of Medicine, Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Department of Pathology, Microbiology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Patrick Janulis
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Alexis R. Demonbreun
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Amelia Sancilio
- Institute for Policy Research, Northwestern University, Evanston, IL, United States
| | - Baiba Berzins
- Department of Medicine, Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Karen Krueger
- Department of Medicine, Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Chad Achenbach
- Department of Medicine, Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Havey Institute for Global Health, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Rachelle Price
- Department of Medicine, Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Margaret Sullivan
- Department of Medicine, Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Matthew Caputo
- Department of Medicine, Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Sara Hockney
- Department of Medicine, Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Teresa Zembower
- Department of Medicine, Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Department of Pathology, Microbiology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Thomas W. McDade
- Department of Anthropology, Northwestern University, Evanston, IL, United States
| | - Babafemi Taiwo
- Department of Medicine, Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
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10
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Wintzinger M, Miz K, York A, Demonbreun AR, Molkentin JD, McNally EM, Quattrocelli M. Effects of Glucocorticoids in Murine Models of Duchenne and Limb-Girdle Muscular Dystrophy. Methods Mol Biol 2023; 2587:467-478. [PMID: 36401044 PMCID: PMC9816991 DOI: 10.1007/978-1-0716-2772-3_24] [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] [Indexed: 11/19/2022]
Abstract
In vivo testing of glucocorticoid steroids in dystrophic mice offers important insights in benefits and risks of those drugs in the pathological context of muscular dystrophy. Frequency of dosing changes the spectrum of glucocorticoid effects on muscle and metabolic homeostasis. Here, we describe a combination of non-invasive and invasive methods to quantitatively discriminate the specific effects of intermittent (once-weekly) versus mainstay (once-daily) regimens on muscle fibrosis, muscle function, and metabolic homeostasis in murine models of Duchenne and limb-girdle muscular dystrophies.
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Affiliation(s)
- Michelle Wintzinger
- Division of Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Karen Miz
- Division of Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Allen York
- Division of Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Alexis R. Demonbreun
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Jeffery D. Molkentin
- Division of Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Elizabeth M. McNally
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Mattia Quattrocelli
- Division of Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA. .,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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11
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Demonbreun AR, Bogdanovic E, Vaught LA, Reiser NL, Fallon KS, Long AM, Oosterbaan CC, Hadhazy M, Page PG, Joseph PRB, Cowen G, Telenson AM, Khatri A, Sadleir KR, Vassar R, McNally EM. A conserved annexin A6-mediated membrane repair mechanism in muscle, heart, and nerve. JCI Insight 2022; 7:158107. [PMID: 35866481 PMCID: PMC9431694 DOI: 10.1172/jci.insight.158107] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 06/08/2022] [Indexed: 11/21/2022] Open
Abstract
Membrane instability and disruption underlie myriad acute and chronic disorders. Anxa6 encodes the membrane-associated protein annexin A6 and was identified as a genetic modifier of muscle repair and muscular dystrophy. To evaluate annexin A6’s role in membrane repair in vivo, we inserted sequences encoding green fluorescent protein (GFP) into the last coding exon of Anxa6. Heterozygous Anxa6gfp mice expressed a normal pattern of annexin A6 with reduced annexin A6GFP mRNA and protein. High-resolution imaging of wounded muscle fibers showed annexin A6GFP rapidly formed a repair cap at the site of injury. Injured cardiomyocytes and neurons also displayed repair caps after wounding, highlighting annexin A6–mediated repair caps as a feature in multiple cell types. Using surface plasmon resonance, we showed recombinant annexin A6 bound phosphatidylserine-containing lipids in a Ca2+- and dose-dependent fashion with appreciable binding at approximately 50 μM Ca2+. Exogenously added recombinant annexin A6 localized to repair caps and improved muscle membrane repair capacity in a dose-dependent fashion without disrupting endogenous annexin A6 localization, indicating annexin A6 promotes repair from both intracellular and extracellular compartments. Thus, annexin A6 orchestrates repair in multiple cell types, and recombinant annexin A6 may be useful in additional chronic disorders beyond skeletal muscle myopathies.
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Affiliation(s)
| | - Elena Bogdanovic
- Center for Genetic Medicine.,Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Lauren A Vaught
- Center for Genetic Medicine.,Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Nina L Reiser
- Center for Genetic Medicine.,Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Katherine S Fallon
- Center for Genetic Medicine.,Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Ashlee M Long
- Center for Genetic Medicine.,Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Claire C Oosterbaan
- Center for Genetic Medicine.,Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Michele Hadhazy
- Center for Genetic Medicine.,Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | | | | | - Gabrielle Cowen
- Center for Genetic Medicine.,Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | | | - Ammaarah Khatri
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Katherine R Sadleir
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Robert Vassar
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine.,Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
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12
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Hoffmann AD, Weinberg SE, Swaminathan S, Chaudhuri S, Mubarak HF, Schipma MJ, Mao C, Wang X, El-Shennawy L, Dashzeveg NK, Wei J, Mehl PJ, Shihadah LJ, Wai CM, Ostiguin C, Jia Y, D'Amico P, Wang NR, Luo Y, Demonbreun AR, Ison MG, Liu H, Fang D. Unique molecular signatures sustained in circulating monocytes and regulatory T cells in Convalescent COVID-19 patients. bioRxiv 2022:2022.03.26.485922. [PMID: 35378753 PMCID: PMC8978941 DOI: 10.1101/2022.03.26.485922] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
Over two years into the COVID-19 pandemic, the human immune response to SARS-CoV-2 during the active disease phase has been extensively studied. However, the long-term impact after recovery, which is critical to advance our understanding SARS-CoV-2 and COVID-19-associated long-term complications, remains largely unknown. Herein, we characterized multi-omic single-cell profiles of circulating immune cells in the peripheral blood of 100 patients, including covenlesent COVID-19 and sero-negative controls. The reduced frequencies of both short-lived monocytes and long-lived regulatory T (Treg) cells are significantly associated with the patients recovered from severe COVID-19. Consistently, sc-RNA seq analysis reveals seven heterogeneous clusters of monocytes (M0-M6) and ten Treg clusters (T0-T9) featuring distinct molecular signatures and associated with COVID-19 severity. Asymptomatic patients contain the most abundant clusters of monocyte and Treg expressing high CD74 or IFN-responsive genes. In contrast, the patients recovered from a severe disease have shown two dominant inflammatory monocyte clusters with S100 family genes: S100A8 & A9 with high HLA-I whereas S100A4 & A6 with high HLA-II genes, a specific non-classical monocyte cluster with distinct IFITM family genes, and a unique TGF-β high Treg Cluster. The outpatients and seronegative controls share most of the monocyte and Treg clusters patterns with high expression of HLA genes. Surprisingly, while presumably short-ived monocytes appear to have sustained alterations over 4 months, the decreased frequencies of long-lived Tregs (high HLA-DRA and S100A6) in the outpatients restore over the tested convalescent time (>= 4 months). Collectively, our study identifies sustained and dynamically altered monocytes and Treg clusters with distinct molecular signatures after recovery, associated with COVID-19 severity.
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13
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McDade TW, Sancilio A, D’Aquila R, Mustanski B, Vaught LA, Reiser NL, Velez ME, Hsieh RR, Ryan DT, Saber R, McNally EM, Demonbreun AR. Low Levels of Neutralizing Antibodies After Natural Infection With Severe Acute Respiratory Syndrome Coronavirus 2 in a Community-Based Serological Study. Open Forum Infect Dis 2022; 9:ofac055. [PMID: 35252468 PMCID: PMC8890497 DOI: 10.1093/ofid/ofac055] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 01/26/2022] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Confidence in natural immunity after infection with severe acute respiratory syndrome coronavirus 2 is one reason for vaccine hesitancy. METHODS We measured antibody-mediated neutralization of spike protein-ACE2 receptor binding in a large community-based sample of seropositive individuals who differed in severity of infection (N = 790). RESULTS A total of 39.8% of infections were asymptomatic, 46.5% were symptomatic with no clinical care, 13.8% were symptomatic with clinical care, and 3.7% required hospitalization. Moderate/high neutralizing activity was present after 41.3% of clinically managed infections, in comparison with 7.9% of symptomatic and 1.9% of asymptomatic infections. CONCLUSIONS Prior coronavirus disease 2019 infection does not guarantee a high level of antibody-mediated protection against reinfection in the general population.
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Affiliation(s)
- Thomas W McDade
- Department of Anthropology, Northwestern University, Evanston, IllinoisUSA,Institute for Policy Research, Northwestern University, Evanston, Illinois, USA,Correspondence: Thomas McDade, PhD, Northwestern University, 1810 Hinman Avenue, Evanston, IL 60208, USA ()
| | - Amelia Sancilio
- Department of Anthropology, Northwestern University, Evanston, IllinoisUSA,Institute for Policy Research, Northwestern University, Evanston, Illinois, USA
| | - Richard D’Aquila
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Brian Mustanski
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, Chicago, Illinois, USA,Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Lauren A Vaught
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA,Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Nina L Reiser
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA,Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Matthew E Velez
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA,Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ryan R Hsieh
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA,Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Daniel T Ryan
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, Chicago, Illinois, USA,Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Rana Saber
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, Chicago, Illinois, USA,Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA,Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA,Department of Biochemistry and Molecular Genetics, Northwestern University, Chicago, Illinois, USA
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA,Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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14
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Simons LM, Lorenzo-Redondo R, Gibson M, Kinch SL, Vandervaart JP, Reiser NL, Eren M, Lux E, McNally EM, Tambur AR, Vaughan DE, Bachta KER, Demonbreun AR, Satchell KJF, Achenbach CJ, Ozer EA, Ison MG, Hultquist JF. Assessment of Virological Contributions to COVID-19 Outcomes in a Longitudinal Cohort of Hospitalized Adults. Open Forum Infect Dis 2022; 9:ofac027. [PMID: 35198645 PMCID: PMC8860154 DOI: 10.1093/ofid/ofac027] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/24/2022] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND While several demographic and clinical correlates of coronavirus disease 2019 (COVID-19) outcome have been identified, their relationship to virological and immunological parameters remains poorly defined. METHODS To address this, we performed longitudinal collection of nasopharyngeal swabs and blood samples from a cohort of 58 hospitalized adults with COVID-19. Samples were assessed for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) viral load, viral genotype, viral diversity, and antibody titer. Demographic and clinical information, including patient blood tests and several composite measures of disease severity, was extracted from electronic health records. RESULTS Several factors, including male sex, higher age, higher body mass index, higher 4C Mortality score, and elevated lactate dehydrogenase levels, were associated with intensive care unit admission. Of all measured parameters, only the retrospectively calculated median Deterioration Index score was significantly associated with death. While quantitative polymerase chain reaction cycle threshold (Ct) values and genotype of SARS-CoV-2 were not significantly associated with outcome, Ct value did correlate positively with C-reactive protein levels and negatively with D-dimer, lymphocyte count, and antibody titer. Intrahost viral genetic diversity remained constant through the disease course and resulted in changes in viral genotype in some participants. CONCLUSIONS Ultimately, these results suggest that worse outcomes are driven by immune dysfunction rather than by viral load and that SARS-CoV-2 evolution in hospital settings is relatively constant over time.
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Affiliation(s)
- Lacy M Simons
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Center for Pathogen Genomics and Microbial Evolution, Institute for Global Health, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ramon Lorenzo-Redondo
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Center for Pathogen Genomics and Microbial Evolution, Institute for Global Health, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Meg Gibson
- Division of Organ Transplantation, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Sarah L Kinch
- Division of Organ Transplantation, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jacob P Vandervaart
- Department of Microbiology-Immunology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Nina L Reiser
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Mesut Eren
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Elizabeth Lux
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Anat R Tambur
- Division of Organ Transplantation, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Douglas E Vaughan
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Kelly E R Bachta
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Karla J F Satchell
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Center for Structural Genomics of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Chad J Achenbach
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Center for Global Communicable and Emerging Infectious Diseases, Institute for Global Health, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Egon A Ozer
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Center for Pathogen Genomics and Microbial Evolution, Institute for Global Health, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Michael G Ison
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Division of Organ Transplantation, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Judd F Hultquist
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Center for Pathogen Genomics and Microbial Evolution, Institute for Global Health, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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15
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Mustanski B, Saber R, Ryan DT, Benbow N, Madkins K, Hayford C, Newcomb ME, Schrock JM, Vaught LA, Reiser NL, Velez MP, Hsieh RR, Demonbreun AR, D'Aquila R, McNally EM, McDade TW. Geographic disparities in COVID-19 case rates are not reflected in seropositivity rates using a neighborhood survey in Chicago. Ann Epidemiol 2022; 66:44-51. [PMID: 34728335 PMCID: PMC8557112 DOI: 10.1016/j.annepidem.2021.10.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 10/10/2021] [Accepted: 10/22/2021] [Indexed: 12/27/2022]
Abstract
To date, COVID-19 case rates are disproportionately higher in Black and Latinx communities across the US, leading to more hospitalizations, and deaths in those communities. These differences in case rates are evident in comparisons of Chicago neighborhoods with differing race and/or ethnicities of their residents. Disparities could be due to neighborhoods with more adverse health outcomes associated with poverty and other social determinants of health experiencing higher prevalence of SARS-CoV-2 infection or due to greater morbidity and mortality resulting from equivalent SARS-CoV-2 infection prevalence. We surveyed five pairs of adjacent ZIP codes in Chicago with disparate COVID-19 case rates for highly specific and quantitative serologic evidence of any prior infection by SARS-CoV-2 to compare with their disparate COVID-19 case rates. Dried blood spot samples were self-collected at home by internet-recruited participants in summer 2020, shortly after Chicago's first wave of the COVID-19 pandemic. Pairs of neighboring ZIP codes with very different COVID-19 case rates had similar seropositivity rates for anti-SARS-CoV-2 receptor binding domain IgG antibodies. Overall, these findings of comparable exposure to SARS-CoV-2 across neighborhoods with very disparate COVID-19 case rates are consistent with social determinants of health, and the co-morbidities related to them, driving differences in COVID-19 rates across neighborhoods.
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Affiliation(s)
- Brian Mustanski
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, Chicago, IL; Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL.
| | - Rana Saber
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, Chicago, IL
| | - Daniel T Ryan
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, Chicago, IL
| | - Nanette Benbow
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Krystal Madkins
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, Chicago, IL
| | - Christina Hayford
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Michael E Newcomb
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, Chicago, IL; Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Joshua M Schrock
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, Chicago, IL
| | - Lauren A Vaught
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Nina L Reiser
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Matthew P Velez
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Ryan R Hsieh
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL; Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Richard D'Aquila
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Thomas W McDade
- Department of Anthropology, Northwestern University Weinberg College of Arts and Sciences, Evanston, IL; Institute for Policy Research, Northwestern University, Evanston, IL
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16
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El-Shennawy L, Hoffmann AD, Dashzeveg NK, McAndrews KM, Mehl PJ, Cornish D, Yu Z, Tokars VL, Nicolaescu V, Tomatsidou A, Mao C, Felicelli CJ, Tsai CF, Ostiguin C, Jia Y, Li L, Furlong K, Wysocki J, Luo X, Ruivo CF, Batlle D, Hope TJ, Shen Y, Chae YK, Zhang H, LeBleu VS, Shi T, Swaminathan S, Luo Y, Missiakas D, Randall GC, Demonbreun AR, Ison MG, Kalluri R, Fang D, Liu H. Circulating ACE2-expressing extracellular vesicles block broad strains of SARS-CoV-2. Nat Commun 2022; 13:405. [PMID: 35058437 PMCID: PMC8776790 DOI: 10.1038/s41467-021-27893-2] [Citation(s) in RCA: 77] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 12/23/2021] [Indexed: 12/20/2022] Open
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused the pandemic of the coronavirus induced disease 2019 (COVID-19) with evolving variants of concern. It remains urgent to identify novel approaches against broad strains of SARS-CoV-2, which infect host cells via the entry receptor angiotensin-converting enzyme 2 (ACE2). Herein, we report an increase in circulating extracellular vesicles (EVs) that express ACE2 (evACE2) in plasma of COVID-19 patients, which levels are associated with severe pathogenesis. Importantly, evACE2 isolated from human plasma or cells neutralizes SARS-CoV-2 infection by competing with cellular ACE2. Compared to vesicle-free recombinant human ACE2 (rhACE2), evACE2 shows a 135-fold higher potency in blocking the binding of the viral spike protein RBD, and a 60- to 80-fold higher efficacy in preventing infections by both pseudotyped and authentic SARS-CoV-2. Consistently, evACE2 protects the hACE2 transgenic mice from SARS-CoV-2-induced lung injury and mortality. Furthermore, evACE2 inhibits the infection of SARS-CoV-2 variants (α, β, and δ) with equal or higher potency than for the wildtype strain, supporting a broad-spectrum antiviral mechanism of evACE2 for therapeutic development to block the infection of existing and future coronaviruses that use the ACE2 receptor.
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Affiliation(s)
- Lamiaa El-Shennawy
- grid.16753.360000 0001 2299 3507Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Andrew D. Hoffmann
- grid.16753.360000 0001 2299 3507Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Nurmaa Khund Dashzeveg
- grid.16753.360000 0001 2299 3507Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Kathleen M. McAndrews
- grid.240145.60000 0001 2291 4776Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA
| | - Paul J. Mehl
- grid.16753.360000 0001 2299 3507Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Daphne Cornish
- grid.16753.360000 0001 2299 3507Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Zihao Yu
- grid.16753.360000 0001 2299 3507Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Valerie L. Tokars
- grid.16753.360000 0001 2299 3507Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Vlad Nicolaescu
- The University of Chicago Howard T. Ricketts Laboratory and Department of Microbiology, Chicago, IL 60637 USA
| | - Anastasia Tomatsidou
- The University of Chicago Howard T. Ricketts Laboratory and Department of Microbiology, Chicago, IL 60637 USA
| | - Chengsheng Mao
- grid.16753.360000 0001 2299 3507Division of Health and Biomedical Informatics, Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Christopher J. Felicelli
- grid.16753.360000 0001 2299 3507Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Chia-Feng Tsai
- grid.451303.00000 0001 2218 3491Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354 USA
| | - Carolina Ostiguin
- grid.16753.360000 0001 2299 3507Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Yuzhi Jia
- grid.16753.360000 0001 2299 3507Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Lin Li
- grid.16753.360000 0001 2299 3507Division of Biostatistics, Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Kevin Furlong
- The University of Chicago Howard T. Ricketts Laboratory and Department of Microbiology, Chicago, IL 60637 USA
| | - Jan Wysocki
- grid.16753.360000 0001 2299 3507Division of Nephrology and Hypertension, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Xin Luo
- grid.240145.60000 0001 2291 4776Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA
| | - Carolina F. Ruivo
- grid.240145.60000 0001 2291 4776Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA
| | - Daniel Batlle
- grid.16753.360000 0001 2299 3507Division of Nephrology and Hypertension, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Thomas J. Hope
- grid.16753.360000 0001 2299 3507Department of Cell and Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Yang Shen
- grid.264756.40000 0004 4687 2082Department of Electrical and Computer Engineering, TEES-AgriLife Center for Bioinformatics and Genomic Systems Engineering, Texas A&M University, College Station, TX 77843 USA
| | - Young Kwang Chae
- grid.16753.360000 0001 2299 3507Division of Hematology and Oncology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Hui Zhang
- grid.16753.360000 0001 2299 3507Division of Biostatistics, Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Valerie S. LeBleu
- grid.16753.360000 0001 2299 3507Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA ,grid.240145.60000 0001 2291 4776Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA ,grid.16753.360000 0001 2299 3507Kellogg School of Management, Northwestern University, Evanston, IL 60208 USA
| | - Tujin Shi
- grid.451303.00000 0001 2218 3491Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354 USA
| | - Suchitra Swaminathan
- grid.16753.360000 0001 2299 3507Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA ,grid.16753.360000 0001 2299 3507Division of Rheumatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Yuan Luo
- grid.16753.360000 0001 2299 3507Division of Health and Biomedical Informatics, Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Dominique Missiakas
- The University of Chicago Howard T. Ricketts Laboratory and Department of Microbiology, Chicago, IL 60637 USA
| | - Glenn C. Randall
- The University of Chicago Howard T. Ricketts Laboratory and Department of Microbiology, Chicago, IL 60637 USA
| | - Alexis R. Demonbreun
- grid.16753.360000 0001 2299 3507Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Michael G. Ison
- grid.16753.360000 0001 2299 3507Division of Infectious Disease, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA ,grid.16753.360000 0001 2299 3507Division of Organ Transplantation, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Raghu Kalluri
- grid.240145.60000 0001 2291 4776Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA ,grid.21940.3e0000 0004 1936 8278Department of Bioengineering, Rice University, Houston, TX 77005 USA ,grid.39382.330000 0001 2160 926XDepartment of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030 USA
| | - Deyu Fang
- grid.16753.360000 0001 2299 3507Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA ,grid.16753.360000 0001 2299 3507Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Huiping Liu
- grid.16753.360000 0001 2299 3507Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA ,grid.16753.360000 0001 2299 3507Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA ,grid.16753.360000 0001 2299 3507Division of Hematology and Oncology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
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17
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Demonbreun AR, Velez MP, Saber R, Ryan DT, Sancilio A, McDade TW, McNally EM. mRNA intramuscular vaccination produces a robust IgG antibody response in advanced neuromuscular disease. Neuromuscul Disord 2021; 32:33-35. [PMID: 34920929 PMCID: PMC8603918 DOI: 10.1016/j.nmd.2021.11.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/03/2021] [Accepted: 11/12/2021] [Indexed: 11/16/2022]
Abstract
SARS-CoV-2 vaccines protect against symptomatic and severe COVID-19. The BNT162b2/Pfizer and mRNA-1273/Moderna vaccines represent new vaccine technology relying on administration of mRNA encoding SARS-CoV-2 viral spike protein encased in lipid nanoparticles. The vaccines are administered as two doses into muscle, which elicits a strong response, typically within 14 days after the second dose. Neuromuscular diseases are characterized by the progressive loss of muscle and are often treated with chronic glucocorticoid steroids, both of which may contribute to a blunted immune response to vaccination. Here, we measured IgG antibody content and neutralizing antibody response after mRNA COVID-19 vaccination in non-ambulatory neuromuscular disease patients. After two doses of mRNA COVID-19 vaccine, median anti-receptor binding domain IgG and percent surrogate viral neutralization in non-ambulatory neuromuscular disease samples were significantly elevated similar to healthy vaccinated controls. As in healthy controls, COVID-19 vaccines produce greater antibody levels compared to those with a history of outpatient COVID-19 infection. This data documents that non-ambulatory neuromuscular disease patients respond well to two doses of mRNA COVID-19 vaccine despite low muscle mass and even chronic steroid use.
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Affiliation(s)
- Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
| | - Matthew P Velez
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Rana Saber
- Department of Medical Social Sciences, Northwestern University, Chicago, IL, USA
| | - Daniel T Ryan
- Department of Medical Social Sciences, Northwestern University, Chicago, IL, USA
| | - Amelia Sancilio
- Department of Anthropology and Institute for Policy Research, Northwestern University, Evanston, IL, USA
| | - Thomas W McDade
- Department of Anthropology and Institute for Policy Research, Northwestern University, Evanston, IL, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
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18
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McNally EM, Demonbreun AR. Resealing and rebuilding injured muscle. Science 2021; 374:262-263. [PMID: 34648349 DOI: 10.1126/science.abm2240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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19
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Demonbreun AR, Fallon KS, Oosterbaan CC, Vaught LA, Reiser NL, Bogdanovic E, Velez MP, Salamone IM, Page PGT, Hadhazy M, Quattrocelli M, Barefield DY, Wood LD, Gonzalez JP, Morris C, McNally EM. Anti-latent TGFβ binding protein 4 antibody improves muscle function and reduces muscle fibrosis in muscular dystrophy. Sci Transl Med 2021; 13:eabf0376. [PMID: 34516828 PMCID: PMC9559620 DOI: 10.1126/scitranslmed.abf0376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Duchenne muscular dystrophy, like other muscular dystrophies, is a progressive disorder hallmarked by muscle degeneration, inflammation, and fibrosis. Latent transforming growth factor β (TGFβ) binding protein 4 (LTBP4) is an extracellular matrix protein found in muscle. LTBP4 sequesters and inhibits a precursor form of TGFβ. LTBP4 was originally identified from a genome-wide search for genetic modifiers of muscular dystrophy in mice, where there are two different alleles. The protective form of LTBP4, which contains an insertion of 12 amino acids in the protein’s hinge region, was linked to increased sequestration of latent TGFβ, enhanced muscle membrane stability, and reduced muscle fibrosis. The deleterious form of LTBP4 protein, lacking 12 amino acids, was more susceptible to proteolysis and promoted release of latent TGF-β, and together, these data underscored the functional role of LTBP4’s hinge. Here, we generated a monoclonal human anti-LTBP4 antibody directed toward LTBP4’s hinge region. In vitro, anti-LTBP4 bound LTBP4 protein and reduced LTBP4 proteolytic cleavage. In isolated myofibers, the LTBP4 antibody stabilized the sarcolemma from injury. In vivo, anti-LTBP4 treatment of dystrophic mice protected muscle against force loss induced by eccentric contraction. Anti-LTBP4 treatment also reduced muscle fibrosis and enhanced muscle force production, including in the diaphragm muscle, where respiratory function was improved. Moreover, the anti-LTBP4 in combination with prednisone, a standard of care for Duchenne muscular dystrophy, further enhanced muscle function and protected against injury in mdx mice. These data demonstrate the potential of anti-LTBP4 antibodies to treat muscular dystrophy.
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Affiliation(s)
- Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA.,Department of Pharmacology, Northwestern University, Chicago, IL 60611, USA
| | - Katherine S Fallon
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Claire C Oosterbaan
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Lauren A Vaught
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Nina L Reiser
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Elena Bogdanovic
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Matthew P Velez
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Isabella M Salamone
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Patrick G T Page
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Michele Hadhazy
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Mattia Quattrocelli
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA.,Department of Pharmacology, Northwestern University, Chicago, IL 60611, USA
| | - David Y Barefield
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | | | | | | | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
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20
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Fullenkamp DE, Curtin JL, Amaral AP, Harris SI, Burridge PW, Demonbreun AR, McNally EM. Abstract P343: Physiologic Mechanical Stress In An Induced Pluripotent Stem Cell Derived Cardiomyocyte Model Of Duchene Muscular Dystrophy-related Cardiomyopathy Treated With A Membrane Resealant. Circ Res 2021. [DOI: 10.1161/res.129.suppl_1.p343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Heart failure is leading cause of morbidity and mortality in the X-linked disease Duchenne muscular dystrophy (DMD). DMD is due to mutations the gene encoding dystrophin. Dystrophin localizes to the costamere in skeletal and cardiac muscle and is part of the larger dystrophin complex, which forms a critical connection linking the sarcomere to extracellular matrix. Disruptions in this complex lead to membrane fragility and multiple forms of muscular dystrophy, most of which have significant cardiac involvement. Therapeutic strategies for DMD include FDA-approved agents for exon skipping, as well as micro-dystrophins gene therapy, which is currently in clinical trials. Despite this progress, there is inadequate information as to how these and other novel agents will affect the DMD heart. Given the critical importance of cardiac muscle efficacy for any therapeutic for DMD and importance of membrane fragility in the disease phenotype, we assessed the susceptibility of patient-derived induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) harboring an out-of-frame exon 46-47
DMD
deletion. iPSC-CMs were reprogrammed via a standard approach and differentiated, expanded, and purified by published methods. Troponin T flow cytometry was performed to and a minimum troponin T positivity >85% positivity was set for inclusion. DMD and control cells were plated onto flexible silicone membranes and subjected to equibiaxial strain as physiologic mechanical stressor, consistent with the inciting pathologic insult in DMD. Troponin and LDH release were assessed as clinically-relevant biomarkers of injury. Physiologic stress parameters were defined using troponin and LDH release relative to unstressed conditions. A membrane resealant being developed for treating DMD was shown to reduce troponin and LDH release in DMD iPSC-CMs, and also showed benefit in control cells. This work provides a ready platform for assessing therapeutics that target not only DMD-related cardiomyopathy, but other forms of cardiomyopathy and myocardial injury.
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21
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Demonbreun AR, Sancilio A, Velez ME, Ryan DT, Pesce L, Saber R, Vaught LA, Reiser NL, Hsieh RR, D’Aquila RT, Mustanski B, McDade TW, McNally EM. COVID-19 mRNA Vaccination Generates Greater Immunoglobulin G Levels in Women Compared to Men. J Infect Dis 2021; 224:793-797. [PMID: 34117873 PMCID: PMC8536925 DOI: 10.1093/infdis/jiab314] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/09/2021] [Indexed: 02/06/2023] Open
Abstract
We investigated whether the antibody response to coronavirus disease 2019 (COVID-19) mRNA vaccination is similar in women and men. In a community cohort without prior COVID-19, first vaccine dose produced higher immunoglobulin G (IgG) levels and percent inhibition of spike-ACE2 receptor binding, a surrogate measure of virus neutralization, in women compared to men (7.0 µg/mL, 51.6% vs 3.3 µg/mL, 36.4%). After 2 doses, IgG levels remained significantly higher for women (30.4 µg/mL) compared to men (20.6 µg/mL), while percent inhibition was similar (98.4% vs 97.7%). Sex-specific antibody response to mRNA vaccination informs future efforts to understand vaccine protection and side effects.
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Affiliation(s)
- Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Amelia Sancilio
- Department of Anthropology and Institute for Policy Research, Northwestern University, Evanston, Illinois, USA
| | - Matt E Velez
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Daniel T Ryan
- Institute for Sexual and Gender Minority Health and Wellbeing, Chicago, Illinois, USA
- Department of Medical Social Sciences, Northwestern University, Chicago, Illinois, USA
| | - Lorenzo Pesce
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Rana Saber
- Institute for Sexual and Gender Minority Health and Wellbeing, Chicago, Illinois, USA
- Department of Medical Social Sciences, Northwestern University, Chicago, Illinois, USA
| | - Lauren A Vaught
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Nina L Reiser
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ryan R Hsieh
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Richard T D’Aquila
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Brian Mustanski
- Institute for Sexual and Gender Minority Health and Wellbeing, Chicago, Illinois, USA
- Department of Medical Social Sciences, Northwestern University, Chicago, Illinois, USA
| | - Thomas W McDade
- Department of Anthropology and Institute for Policy Research, Northwestern University, Evanston, Illinois, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Department of Biochemistry and Molecular Genetics, Northwestern University, Chicago, Illinois, USA
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22
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McDade TW, Demonbreun AR, Sancilio A, Mustanski B, D'Aquila RT, McNally EM. Durability of antibody response to vaccination and surrogate neutralization of emerging variants based on SARS-CoV-2 exposure history. Sci Rep 2021; 11:17325. [PMID: 34462501 PMCID: PMC8405730 DOI: 10.1038/s41598-021-96879-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 08/17/2021] [Indexed: 11/08/2022] Open
Abstract
Two-dose messenger RNA vaccines against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are highly effective in preventing symptomatic COVID-19 infection. However, the durability of protection is not known, nor is the effectiveness against emerging viral variants. Additionally, vaccine responses may differ based on prior SARS-CoV-2 exposure history. To investigate protection against SARS-CoV-2 variants we measured binding and neutralizing antibody responses following both vaccine doses. We document significant declines in antibody levels three months post-vaccination, and reduced neutralization of emerging variants, highlighting the need to identify correlates of clinical protection to inform the timing of and indications for booster vaccination.
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Affiliation(s)
- Thomas W McDade
- Northwestern University, 1810 Hinman Avenue, Evanston, IL, 60208, USA.
| | - Alexis R Demonbreun
- Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Amelia Sancilio
- Northwestern University, 1810 Hinman Avenue, Evanston, IL, 60208, USA
| | - Brian Mustanski
- Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Richard T D'Aquila
- Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Elizabeth M McNally
- Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
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23
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Barefield DY, Sell JJ, Tahtah I, Kearns SD, McNally EM, Demonbreun AR. Loss of dysferlin or myoferlin results in differential defects in excitation-contraction coupling in mouse skeletal muscle. Sci Rep 2021; 11:15865. [PMID: 34354129 PMCID: PMC8342512 DOI: 10.1038/s41598-021-95378-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 07/26/2021] [Indexed: 11/25/2022] Open
Abstract
Muscular dystrophies are disorders characterized by progressive muscle loss and weakness that are both genotypically and phenotypically heterogenous. Progression of muscle disease arises from impaired regeneration, plasma membrane instability, defective membrane repair, and calcium mishandling. The ferlin protein family, including dysferlin and myoferlin, are calcium-binding, membrane-associated proteins that regulate membrane fusion, trafficking, and tubule formation. Mice lacking dysferlin (Dysf), myoferlin (Myof), and both dysferlin and myoferlin (Fer) on an isogenic inbred 129 background were previously demonstrated that loss of both dysferlin and myoferlin resulted in more severe muscle disease than loss of either gene alone. Furthermore, Fer mice had disordered triad organization with visibly malformed transverse tubules and sarcoplasmic reticulum, suggesting distinct roles of dysferlin and myoferlin. To assess the physiological role of disorganized triads, we now assessed excitation contraction (EC) coupling in these models. We identified differential abnormalities in EC coupling and ryanodine receptor disruption in flexor digitorum brevis myofibers isolated from ferlin mutant mice. We found that loss of dysferlin alone preserved sensitivity for EC coupling and was associated with larger ryanodine receptor clusters compared to wildtype myofibers. Loss of myoferlin alone or together with a loss of dysferlin reduced sensitivity for EC coupling, and produced disorganized and smaller ryanodine receptor cluster size compared to wildtype myofibers. These data reveal impaired EC coupling in Myof and Fer myofibers and slightly potentiated EC coupling in Dysf myofibers. Despite high homology, dysferlin and myoferlin have differential roles in regulating sarcotubular formation and maintenance resulting in unique impairments in calcium handling properties.
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Affiliation(s)
- David Y Barefield
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, 303 E Superior Lurie 5-500, Chicago, IL, 60611, USA. .,Department of Cell and Molecular Physiology, Loyola University Chicago, 2160 S. 1st Ave, Maywood, IL, 60153, USA.
| | - Jordan J Sell
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, 303 E Superior Lurie 5-500, Chicago, IL, 60611, USA
| | - Ibrahim Tahtah
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, 303 E Superior Lurie 5-500, Chicago, IL, 60611, USA
| | - Samuel D Kearns
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, 303 E Superior Lurie 5-500, Chicago, IL, 60611, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, 303 E Superior Lurie 5-500, Chicago, IL, 60611, USA
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, 303 E Superior Lurie 5-500, Chicago, IL, 60611, USA. .,Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA. .,Center for Genetic Medicine, Northwestern University, 303 E Superior Lurie 5-512, Chicago, IL, 60611, USA.
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24
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Demonbreun AR, Sancilio A, Velez MP, Ryan DT, Saber R, Vaught LA, Reiser NL, Hsieh RR, D'Aquila RT, Mustanski B, McNally EM, McDade TW. Comparison of IgG and neutralizing antibody responses after one or two doses of COVID-19 mRNA vaccine in previously infected and uninfected individuals. EClinicalMedicine 2021; 38:101018. [PMID: 34278286 PMCID: PMC8276631 DOI: 10.1016/j.eclinm.2021.101018] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/15/2021] [Accepted: 06/21/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Recent reports have suggested that among individuals previously infected with SARS-CoV-2, a single mRNA vaccine dose is sufficient to elicit high levels of immunity. METHODS We compared anti-SARS-CoV-2 spike receptor binding domain (RBD) IgG antibody concentrations and antibody-mediated neutralization of spike-angiotensin-converting enzyme (ACE2) receptor binding in vitro following vaccination of non-hospitalized participants by sero-status and acute virus diagnosis history. Participants were analysed before and after mRNA vaccination (BNT162b2/Pfizer or mRNA-1273/Moderna) in a community-based, home-collected, longitudinal serosurvey in the Chicago area (USA); none reported hospitalization for COVID-19. Samples were collected in January and February 2021. Before vaccination, some reported prior positive acute viral diagnostic testing and were seropositive (COVID-19+); the others who did not report acute viral diagnostic testing were categorized as seropositive or seronegative based on anti-spike RBD IgG test results. FINDINGS Of 307 unique vaccine recipients, 46 reported a prior COVID-19 diagnosis and were seropositive (COVID-19 +). Of the 261 with no history of acute viral diagnostic testing, 117 were seropositive and 144 seronegative before vaccination. The median age was 38 years (range 21-83) with 67 female and 33% male; 40% were non-White. Responses were evaluated after one (n = 142) or two (n = 191) doses of BNT162b2 or mRNA-1273 vaccine. After one dose, median post-vaccine IgG concentration and percent surrogate neutralization were each significantly higher among the COVID-19+ (median 48·2 µg/ml, IgG; > 99.9% neutralization) compared to the seropositives (3·6 µg /ml IgG; 56.5% neutralization) and seronegatives (2·6 µg /ml IgG; 38·3% neutralization). The latter two groups reached > 95% neutralization after the second vaccine dose. INTERPRETATION After one dose of mRNA vaccine, individuals previously diagnosed with COVID-19 responded with high levels of anti-RBD IgG and surrogate neutralization of spike-ACE2 interaction. One dose of mRNA vaccine was not sufficient to generate comparably high responses among most persons previously infected with SARS-CoV-2 without a clinical COVID-19 diagnosis, nor among seronegative persons. FUNDING National Science Foundation 2035114, NIH 3UL1TR001422-06S4, and Northwestern University Office of Research.
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Affiliation(s)
- Alexis R. Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, USA
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, USA
| | - Amelia Sancilio
- Department of Anthropology and Institute for Policy Research, Northwestern University, 1810 Hinman Avenue, Evanston, IL 60208 USA
| | - Matt P. Velez
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, USA
| | - Daniel T. Ryan
- Institute for Sexual and Gender Minority Health and Wellbeing and Department of Medical Social Sciences, Northwestern University, USA
| | - Rana Saber
- Institute for Sexual and Gender Minority Health and Wellbeing and Department of Medical Social Sciences, Northwestern University, USA
| | - Lauren A. Vaught
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, USA
| | - Nina L. Reiser
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, USA
| | - Ryan R. Hsieh
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, USA
| | - Richard T. D'Aquila
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, USA
| | - Brian Mustanski
- Institute for Sexual and Gender Minority Health and Wellbeing and Department of Medical Social Sciences, Northwestern University, USA
| | - Elizabeth M. McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, USA
- Department of Biochemistry and Molecular Genetics, Northwestern University, USA
| | - Thomas W. McDade
- Department of Anthropology and Institute for Policy Research, Northwestern University, 1810 Hinman Avenue, Evanston, IL 60208 USA
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25
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Sancilio AE, D'Aquila RT, McNally EM, Velez MP, Ison MG, Demonbreun AR, McDade TW. A surrogate virus neutralization test to quantify antibody-mediated inhibition of SARS-CoV-2 in finger stick dried blood spot samples. Sci Rep 2021; 11:15321. [PMID: 34321523 PMCID: PMC8319431 DOI: 10.1038/s41598-021-94653-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 07/08/2021] [Indexed: 12/15/2022] Open
Abstract
The spike protein of SARS-CoV-2 engages the human angiotensin-converting enzyme 2 (ACE2) receptor to enter host cells, and neutralizing antibodies are effective at blocking this interaction to prevent infection. Widespread application of this important marker of protective immunity is limited by logistical and technical challenges associated with live virus methods and venous blood collection. To address this gap, we validated an immunoassay-based method for quantifying neutralization of the spike-ACE2 interaction in a single drop of capillary whole blood, collected on filter paper as a dried blood spot (DBS) sample. Samples are eluted overnight and incubated in the presence of spike antigen and ACE2 in a 96-well solid phase plate. Competitive immunoassay with electrochemiluminescent label is used to quantify neutralizing activity. The following measures of assay performance were evaluated: dilution series of confirmed positive and negative samples, agreement with results from matched DBS-serum samples, analysis of results from DBS samples with known COVID-19 status, and precision (intra-assay percent coefficient of variation; %CV) and reliability (inter-assay; %CV). Dilution series produced the expected pattern of dose–response. Agreement between results from serum and DBS samples was high, with concordance correlation = 0.991. Analysis of three control samples across the measurement range indicated acceptable levels of precision and reliability. Median % surrogate neutralization was 46.9 for PCR confirmed convalescent COVID-19 samples and 0.1 for negative samples. Large-scale testing is important for quantifying neutralizing antibodies that can provide protection against COVID-19 in order to estimate the level of immunity in the general population. DBS provides a minimally-invasive, low cost alternative to venous blood collection, and this scalable immunoassay-based method for quantifying inhibition of the spike-ACE2 interaction can be used as a surrogate for virus-based assays to expand testing across a wide range of settings and populations.
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Affiliation(s)
- Amelia E Sancilio
- Institute for Policy Research, Northwestern University, Evanston, USA
| | - Richard T D'Aquila
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University, Evanston, USA.,Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, USA.,Department of Biochemistry and Molecular Genetics, Northwestern University, Evanston, USA
| | - Matthew P Velez
- Center for Genetic Medicine, Northwestern University, Evanston, USA.,Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, USA
| | - Michael G Ison
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, USA.,Division of Organ Transplantation, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, USA
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University, Evanston, USA.,Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, USA
| | - Thomas W McDade
- Institute for Policy Research, Northwestern University, Evanston, USA. .,Department of Anthropology, Northwestern University, 1810 Hinman Ave., Evanston, IL, 60208, USA.
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26
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Schrock JM, Ryan DT, Saber R, Benbow N, Vaught LA, Reiser N, Velez MP, Hsieh R, Newcomb M, Demonbreun AR, Mustanski B, McNally EM, D’Aquila R, McDade TW. Cohabitation With a Known Coronavirus Disease 2019 Case Is Associated With Greater Antibody Concentration and Symptom Severity in a Community-Based Sample of Seropositive Adults. Open Forum Infect Dis 2021; 8:ofab244. [PMID: 34316503 PMCID: PMC8302857 DOI: 10.1093/ofid/ofab244] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 05/11/2021] [Indexed: 01/12/2023] Open
Abstract
In a community-based sample of seropositive adults (n = 1101), we found that seropositive individuals who lived with a known coronavirus disease 2019 (COVID-19) case exhibited higher blood anti-severe acute respiratory syndrome coronavirus 2 spike receptor-binding domain immunoglobulin G concentrations and greater symptom severity compared to seropositive individuals who did not live with a known COVID-19 case.
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Affiliation(s)
- Joshua M Schrock
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, Chicago, Illinois, USA
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Department of Anthropology, Northwestern University, Evanston, Illinois, USA
| | - Daniel T Ryan
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, Chicago, Illinois, USA
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Rana Saber
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, Chicago, Illinois, USA
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Nanette Benbow
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Lauren A Vaught
- Center for Genetic Medicine, Northwestern University, Chicago, Illinois, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Nina Reiser
- Center for Genetic Medicine, Northwestern University, Chicago, Illinois, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Matthew P Velez
- Center for Genetic Medicine, Northwestern University, Chicago, Illinois, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ryan Hsieh
- Center for Genetic Medicine, Northwestern University, Chicago, Illinois, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Michael Newcomb
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, Chicago, Illinois, USA
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University, Chicago, Illinois, USA
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Brian Mustanski
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, Chicago, Illinois, USA
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University, Chicago, Illinois, USA
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Department of Biochemistry and Molecular Genetics, Northwestern University, Chicago, Illinois, USA
| | - Richard D’Aquila
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Thomas W McDade
- Department of Anthropology, Northwestern University, Evanston, Illinois, USA
- Institute for Policy Research, Northwestern University, Evanston, Illinois, USA
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27
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Demonbreun AR, McDade TW, Pesce L, Vaught LA, Reiser NL, Bogdanovic E, Velez MP, Hsieh RR, Simons LM, Saber R, Ryan DT, Ison MG, Hultquist JF, Wilkins JT, D'Aquila RT, Mustanski B, McNally EM. Patterns and persistence of SARS-CoV-2 IgG antibodies in Chicago to monitor COVID-19 exposure. JCI Insight 2021; 6:146148. [PMID: 33755598 PMCID: PMC8262291 DOI: 10.1172/jci.insight.146148] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 03/18/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Estimates of seroprevalence to SARS-CoV-2 vary widely and may influence vaccination response. We ascertained IgG levels across a single US metropolitan site, Chicago, from June 2020 through December 2020. METHODS Participants (n = 7935) were recruited through electronic advertising and received materials for a self-sampled dried-blood spot assay through the mail or a minimal contact in-person method. IgG against the receptor-binding domain of SARS-CoV-2 was measured using an established highly sensitive and highly specific assay. RESULTS Overall seroprevalence was 17.9%, with no significant difference between method of contact. Only 2.5% of participants reported having had a diagnosis of COVID-19 based on virus detection, consistent with a 7-fold greater exposure to SARS-CoV-2 measured by serology than that detected by viral testing. The range of IgG level observed in seropositive participants from this community survey overlapped with the range of IgG levels associated with COVID-19 cases having a documented positive PCR test. From a subset of those who participated in repeat testing, half of seropositive individuals retained detectable antibodies for 3 to 4 months. CONCLUSION Quantitative IgG measurements with a highly specific and sensitive assay indicated more widespread exposure to SARS-CoV-2 than observed by viral testing. The range of IgG concentrations produced from these asymptomatic exposures was similar to IgG levels occurring after documented nonhospitalized COVID-19, which were considerably lower than those produced from hospitalized COVID-19 cases. The differing ranges of IgG response, coupled with the rate of decay of antibodies, may influence response to subsequent viral exposure and vaccine. Funding National Science Foundation grant 2035114, NIH grant 3UL1TR001422-06S4, NIH National Center for Advancing Translational Sciences grants UL1 TR001422 and UL1 TR002389, Dixon Family Foundation, Northwestern University Cancer Center (NIH grant P30 CA060553), and Walder Foundation’s Chicago Coronavirus Assessment Network.
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Affiliation(s)
- Alexis R Demonbreun
- Center for Genetic Medicine and.,Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Thomas W McDade
- Department of Anthropology and Institute for Policy Research, Northwestern University, Evanston, Illinois, USA
| | - Lorenzo Pesce
- Center for Genetic Medicine and.,Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Lauren A Vaught
- Center for Genetic Medicine and.,Division of Cardiology, Department of Medicine, and
| | - Nina L Reiser
- Center for Genetic Medicine and.,Division of Cardiology, Department of Medicine, and
| | - Elena Bogdanovic
- Center for Genetic Medicine and.,Division of Cardiology, Department of Medicine, and
| | - Matthew P Velez
- Center for Genetic Medicine and.,Division of Cardiology, Department of Medicine, and
| | - Ryan R Hsieh
- Center for Genetic Medicine and.,Division of Cardiology, Department of Medicine, and
| | - Lacy M Simons
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Rana Saber
- Institute for Sexual and Gender Minority Health and Wellbeing and Department of Medical Social Sciences, Northwestern University, Chicago, Illinois, USA
| | - Daniel T Ryan
- Institute for Sexual and Gender Minority Health and Wellbeing and Department of Medical Social Sciences, Northwestern University, Chicago, Illinois, USA
| | - Michael G Ison
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.,Division of Organ Transplantation, Department of Surgery, and
| | - Judd F Hultquist
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - John T Wilkins
- Center for Genetic Medicine and.,Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Richard T D'Aquila
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Brian Mustanski
- Institute for Sexual and Gender Minority Health and Wellbeing and Department of Medical Social Sciences, Northwestern University, Chicago, Illinois, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine and.,Division of Cardiology, Department of Medicine, and.,Department of Biochemistry and Molecular Genetics, Northwestern University, Chicago, Illinois, USA
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28
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Demonbreun AR, McDade TW, Pesce L, Vaught LA, Reiser NL, Bogdanovic E, Velez MP, Hsieh RR, Simons LM, Saber R, Ryan DT, Ison MG, Hultquist JF, Wilkins JT, D’Aquila RT, Mustanski B, McNally EM. Patterns and persistence of SARS-CoV-2 IgG antibodies in Chicago to monitor COVID-19 exposure. medRxiv 2021:2020.11.17.20233452. [PMID: 33236031 PMCID: PMC7685344 DOI: 10.1101/2020.11.17.20233452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Background Estimates of seroprevalence to SARS-CoV-2 vary widely and may influence vaccination response. We ascertained IgG levels across a single US metropolitan site, Chicago, from June 2020 through December 2020. Methods Participants (n=7935) were recruited through electronic advertising and received materials for a self-sampled dried blood spot assay through the mail or a minimal contact in person method. IgG to the receptor binding domain of SARS-CoV-2 was measured using an established highly sensitive and highly specific assay. Results Overall seroprevalence was 17.9%, with no significant difference between method of contact. Only 2.5% of participants reported having had a diagnosis of COVID-19 based on virus detection, consistent with a 7-fold greater exposure to SARS-CoV-2 measured by serology than detected by viral testing. The range of IgG level observed in seropositive participants from this community survey overlapped with the range of IgG levels associated with COVID-19 cases having a documented positive PCR positive test. From a subset of those who participated in repeat testing, half of seropositive individuals retained detectable antibodies for 3-4 months. Conclusions Quantitative IgG measurements with a highly specific and sensitive assay indicate more widespread exposure to SARS-CoV-2 than observed by viral testing. The range of IgG concentration produced from these asymptomatic exposures is similar to IgG levels occurring after documented non-hospitalized COVID-19, which is considerably lower than that produced from hospitalized COVID-19 cases. The differing ranges of IgG response, coupled with the rate of decay of antibodies, may influence response to subsequent viral exposure and vaccine.
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Affiliation(s)
- Alexis R. Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine
- Department of Pharmacology, Northwestern University Feinberg School of Medicine
| | - Thomas W. McDade
- Department of Anthropology and Institute for Policy Research, Northwestern University
| | - Lorenzo Pesce
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine
- Department of Pharmacology, Northwestern University Feinberg School of Medicine
| | - Lauren A. Vaught
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine
| | - Nina L. Reiser
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine
| | - Elena Bogdanovic
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine
| | - Matthew P. Velez
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine
| | - Ryan R. Hsieh
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine
| | - Lacy M. Simons
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine
| | - Rana Saber
- Institute for Sexual and Gender Minority Health and Wellbeing and Department of Medical Social Sciences, Northwestern University
| | - Daniel T. Ryan
- Institute for Sexual and Gender Minority Health and Wellbeing and Department of Medical Social Sciences, Northwestern University
| | - Michael G. Ison
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine
- Division of Organ Transplantation, Dept. of Surgery, Northwestern University Feinberg School of Medicine
| | - Judd F. Hultquist
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine
| | - John T. Wilkins
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine
| | - Richard T. D’Aquila
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine
| | - Brian Mustanski
- Institute for Sexual and Gender Minority Health and Wellbeing and Department of Medical Social Sciences, Northwestern University
| | - Elizabeth M. McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine
- Department of Biochemistry and Molecular Genetics, Northwestern University
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29
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Schrock JM, Ryan DT, Saber R, Benbow N, Vaught LA, Reiser N, Velez MP, Hsieh R, Newcomb M, Demonbreun AR, Mustanski B, McNally EM, D’Aquila R, McDade TW. Exposure to SARS-CoV-2 within the household is associated with greater symptom severity and stronger antibody responses in a community-based sample of seropositive adults. medRxiv 2021:2021.03.11.21253421. [PMID: 33758903 PMCID: PMC7987062 DOI: 10.1101/2021.03.11.21253421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Magnitude of SARS-CoV-2 virus exposure may contribute to symptom severity. In a sample of seropositive adults (n=1101), we found that individuals who lived with a known COVID-19 case exhibited greater symptom severity and IgG concentrations compared to individuals who were seropositive but did not live with a known case (P<0.0001).
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Affiliation(s)
- Joshua M. Schrock
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine
- Department of Anthropology, Northwestern University
| | - Daniel T. Ryan
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine
| | - Rana Saber
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine
| | - Nanette Benbow
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine
| | - Lauren A. Vaught
- Center for Genetic Medicine, Northwestern University
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine
| | - Nina Reiser
- Center for Genetic Medicine, Northwestern University
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine
| | - Matthew P. Velez
- Center for Genetic Medicine, Northwestern University
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine
| | - Ryan Hsieh
- Center for Genetic Medicine, Northwestern University
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine
| | - Michael Newcomb
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine
| | - Alexis R. Demonbreun
- Center for Genetic Medicine, Northwestern University
- Department of Pharmacology, Northwestern University Feinberg School of Medicine
| | - Brian Mustanski
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine
| | - Elizabeth M. McNally
- Center for Genetic Medicine, Northwestern University
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine
- Department of Biochemistry and Molecular Genetics, Northwestern University
| | - Richard D’Aquila
- Division of Infectious Diseases, Dept. of Medicine, Northwestern University Feinberg School of Medicine
| | - Thomas W. McDade
- Department of Anthropology, Northwestern University
- Institute for Policy Research, Northwestern University
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30
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McDade TW, McNally EM, Zelikovich AS, D’Aquila R, Mustanski B, Miller A, Vaught LA, Reiser NL, Bogdanovic E, Fallon KS, Demonbreun AR. High seroprevalence for SARS-CoV-2 among household members of essential workers detected using a dried blood spot assay. PLoS One 2020; 15:e0237833. [PMID: 32797108 PMCID: PMC7428174 DOI: 10.1371/journal.pone.0237833] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 08/04/2020] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE Serological testing is needed to investigate the extent of transmission of SARS-CoV-2 from front-line essential workers to their household members. However, the requirement for serum/plasma limits serological testing to clinical settings where it is feasible to collect and process venous blood. To address this problem we developed a serological test for SARS-CoV-2 IgG antibodies that requires only a single drop of finger stick capillary whole blood, collected in the home and dried on filter paper (dried blood spot, DBS). We describe assay performance and demonstrate its utility for remote sampling with results from a community-based study. METHODS An ELISA to the receptor binding domain of the SARS-CoV-2 spike protein was optimized to quantify IgG antibodies in DBS. Samples were self-collected from a community sample of 232 participants enriched with health care workers, including 30 known COVID-19 cases and their household members. RESULTS Among 30 individuals sharing a household with a virus-confirmed case of COVID-19, 80% were seropositive. Of 202 community individuals without prior confirmed acute COVID-19 diagnoses, 36% were seropositive. Of documented convalescent COVID-19 cases from the community, 29 of 30 (97%) were seropositive for IgG antibodies to the receptor binding domain. CONCLUSION DBS ELISA provides a minimally-invasive alternative to venous blood collection. Early analysis suggests a high rate of transmission among household members. High rates of seroconversion were also noted following recovery from infection. Serological testing for SARS-CoV-2 IgG antibodies in DBS samples can facilitate seroprevalence assessment in community settings to address epidemiological questions, monitor duration of antibody responses, and assess if antibodies against the spike protein correlate with protection from reinfection.
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Affiliation(s)
- Thomas W. McDade
- Department of Anthropology and Institute for Policy Research, Northwestern University, Evanston, Illinois, United States of America
- Canadian Institute for Advanced Research, Child and Brain Development Program, Toronto, Canada
- * E-mail:
| | - Elizabeth M. McNally
- Center for Genetic Medicine, Northwestern University, Evanston, Illinois, United States of America
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
- Department of Biochemistry and Molecular Genetics, Northwestern University, Evanston, Illinois, United States of America
| | - Aaron S. Zelikovich
- Center for Genetic Medicine, Northwestern University, Evanston, Illinois, United States of America
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Richard D’Aquila
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Brian Mustanski
- Institute for Sexual and Gender Minority Health and Wellbeing and Department of Medical Social Sciences, Northwestern University, Chicago, Illinois, United States of America
| | - Aaron Miller
- Department of Anthropology and Institute for Policy Research, Northwestern University, Evanston, Illinois, United States of America
| | - Lauren A. Vaught
- Center for Genetic Medicine, Northwestern University, Evanston, Illinois, United States of America
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Nina L. Reiser
- Center for Genetic Medicine, Northwestern University, Evanston, Illinois, United States of America
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Elena Bogdanovic
- Center for Genetic Medicine, Northwestern University, Evanston, Illinois, United States of America
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Katherine S. Fallon
- Center for Genetic Medicine, Northwestern University, Evanston, Illinois, United States of America
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Alexis R. Demonbreun
- Center for Genetic Medicine, Northwestern University, Evanston, Illinois, United States of America
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
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31
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Quattrocelli M, Zelikovich AS, Jiang Z, Peek CB, Demonbreun AR, Kuntz NL, Barish GD, Haldar SM, Bass J, McNally EM. Pulsed glucocorticoids enhance dystrophic muscle performance through epigenetic-metabolic reprogramming. JCI Insight 2019; 4:132402. [PMID: 31852847 PMCID: PMC6975267 DOI: 10.1172/jci.insight.132402] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 08/14/2019] [Accepted: 11/13/2019] [Indexed: 12/23/2022] Open
Abstract
In humans, chronic glucocorticoid use is associated with side effects like muscle wasting, obesity, and metabolic syndrome. Intermittent steroid dosing has been proposed in Duchenne Muscular Dystrophy patients to mitigate the side effects seen with daily steroid intake. We evaluated biomarkers from Duchenne Muscular Dystrophy patients, finding that, compared with chronic daily steroid use, weekend steroid use was associated with reduced serum insulin, free fatty acids, and branched chain amino acids, as well as reduction in fat mass despite having similar BMIs. We reasoned that intermittent prednisone administration in dystrophic mice would alter muscle epigenomic signatures, and we identified the coordinated action of the glucocorticoid receptor, KLF15 and MEF2C as mediators of a gene expression program driving metabolic reprogramming and enhanced nutrient utilization. Muscle lacking Klf15 failed to respond to intermittent steroids. Furthermore, coadministration of the histone acetyltransferase inhibitor anacardic acid with steroids in mdx mice eliminated steroid-specific epigenetic marks and abrogated the steroid response. Together, these findings indicate that intermittent, repeated exposure to glucocorticoids promotes performance in dystrophic muscle through an epigenetic program that enhances nutrient utilization.
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MESH Headings
- Anacardic Acids/administration & dosage
- Animals
- Biomarkers/blood
- Biomarkers/metabolism
- Child
- Cross-Sectional Studies
- Disease Models, Animal
- Drug Therapy, Combination
- Epigenesis, Genetic/drug effects
- Epigenomics
- Gene Expression Regulation/drug effects
- Glucocorticoids/administration & dosage
- Histone Acetyltransferases/antagonists & inhibitors
- Histone Acetyltransferases/metabolism
- Humans
- Kruppel-Like Transcription Factors/genetics
- Kruppel-Like Transcription Factors/metabolism
- MEF2 Transcription Factors/metabolism
- Male
- Metabolomics
- Mice
- Mice, Inbred mdx
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/metabolism
- Muscle, Skeletal/pathology
- Muscular Dystrophy, Duchenne/blood
- Muscular Dystrophy, Duchenne/diagnosis
- Muscular Dystrophy, Duchenne/drug therapy
- Muscular Dystrophy, Duchenne/genetics
- Nutrients/blood
- Nutrients/metabolism
- Prednisone/administration & dosage
- Pulse Therapy, Drug
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Affiliation(s)
- Mattia Quattrocelli
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University (NU), Chicago, Illinois, USA
| | - Aaron S. Zelikovich
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University (NU), Chicago, Illinois, USA
| | - Zhen Jiang
- Gladstone Institutes, San Francisco, California, USA
- Amgen Research, South San Francisco, California, USA
| | - Clara Bien Peek
- Division of Endocrinology, Metabolism and Molecular Medicine, Feinberg School of Medicine, NU, Chicago, Illinois, USA
| | - Alexis R. Demonbreun
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University (NU), Chicago, Illinois, USA
| | - Nancy L. Kuntz
- Ann and Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois, USA
| | - Grant D. Barish
- Division of Endocrinology, Metabolism and Molecular Medicine, Feinberg School of Medicine, NU, Chicago, Illinois, USA
| | - Saptarsi M. Haldar
- Gladstone Institutes, San Francisco, California, USA
- Amgen Research, South San Francisco, California, USA
- Cardiology Division, Department of Medicine, UCSF School of Medicine, San Francisco, California, USA
| | - Joseph Bass
- Division of Endocrinology, Metabolism and Molecular Medicine, Feinberg School of Medicine, NU, Chicago, Illinois, USA
| | - Elizabeth M. McNally
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University (NU), Chicago, Illinois, USA
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Demonbreun AR, Wyatt EJ, Fallon KS, Oosterbaan CC, Page PG, Hadhazy M, Quattrocelli M, Barefield DY, McNally EM. A gene-edited mouse model of limb-girdle muscular dystrophy 2C for testing exon skipping. Dis Model Mech 2019; 13:dmm040832. [PMID: 31582396 PMCID: PMC6906631 DOI: 10.1242/dmm.040832] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 09/23/2019] [Indexed: 12/21/2022] Open
Abstract
Limb-girdle muscular dystrophy type 2C is caused by autosomal recessive mutations in the γ-sarcoglycan (SGCG) gene. The most common SGCG mutation is a single nucleotide deletion from a stretch of five thymine residues in SGCG exon 6 (521ΔT). This founder mutation disrupts the transcript reading frame, abolishing protein expression. An antisense oligonucleotide exon-skipping method to reframe the human 521ΔT transcript requires skipping four exons to generate a functional, internally truncated protein. In vivo evaluation of this multi-exon skipping, antisense-mediated therapy requires a genetically appropriate mouse model. The human and mouse γ-sarcoglycan genes are highly homologous in sequence and gene structure, including the exon 6 region harboring the founder mutation. Herein, we describe a new mouse model of this form of limb-girdle muscular dystrophy generated using CRISPR/Cas9-mediated gene editing to introduce a single thymine deletion in murine exon 6, recreating the 521ΔT point mutation in Sgcg These mice express the 521ΔT transcript, lack γ-sarcoglycan protein and exhibit a severe dystrophic phenotype. Phenotypic characterization demonstrated reduced muscle mass, increased sarcolemmal leak and fragility, and decreased muscle function, consistent with the human pathological findings. Furthermore, we showed that intramuscular administration of a murine-specific multiple exon-directed antisense oligonucleotide cocktail effectively corrected the 521ΔT reading frame. These data demonstrate a molecularly and pathologically suitable model for in vivo testing of a multi-exon skipping strategy to advance preclinical development of this genetic correction approach.
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Affiliation(s)
- Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
- Department of Pharmacology, Northwestern University, Chicago, IL 60611, USA
| | - Eugene J Wyatt
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Katherine S Fallon
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Claire C Oosterbaan
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Patrick G Page
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Michele Hadhazy
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Mattia Quattrocelli
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - David Y Barefield
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA
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Demonbreun AR, Fallon KS, Oosterbaan CC, Bogdanovic E, Warner JL, Sell JJ, Page PG, Quattrocelli M, Barefield DY, McNally EM. Recombinant annexin A6 promotes membrane repair and protects against muscle injury. J Clin Invest 2019; 129:4657-4670. [PMID: 31545299 PMCID: PMC6819108 DOI: 10.1172/jci128840] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [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: 03/14/2019] [Accepted: 07/26/2019] [Indexed: 12/22/2022] Open
Abstract
Membrane repair is essential to cell survival. In skeletal muscle, injury often associates with plasma membrane disruption. Additionally, muscular dystrophy is linked to mutations in genes that produce fragile membranes or reduce membrane repair. Methods to enhance repair and reduce susceptibility to injury could benefit muscle in both acute and chronic injury settings. Annexins are a family of membrane-associated Ca2+-binding proteins implicated in repair, and annexin A6 was previously identified as a genetic modifier of muscle injury and disease. Annexin A6 forms the repair cap over the site of membrane disruption. To elucidate how annexins facilitate repair, we visualized annexin cap formation during injury. We found that annexin cap size positively correlated with increasing Ca2+ concentrations. We also found that annexin overexpression promoted external blebs enriched in Ca2+ and correlated with a reduction of intracellular Ca2+ at the injury site. Annexin A6 overexpression reduced membrane injury, consistent with enhanced repair. Treatment with recombinant annexin A6 protected against acute muscle injury in vitro and in vivo. Moreover, administration of recombinant annexin A6 in a model of muscular dystrophy reduced serum creatinine kinase, a biomarker of disease. These data identify annexins as mediators of membrane-associated Ca2+ release during membrane repair and annexin A6 as a therapeutic target to enhance membrane repair capacity.
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Affiliation(s)
- Alexis R. Demonbreun
- Center for Genetic Medicine, and
- Department of Pharmacology, Northwestern University, Chicago, Illinois, USA
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Vo AH, Swaggart KA, Woo A, Gao QQ, Demonbreun AR, Fallon KS, Quattrocelli M, Hadhazy M, Page PGT, Chen Z, Eskin A, Squire K, Nelson SF, McNally EM. Dusp6 is a genetic modifier of growth through enhanced ERK activity. Hum Mol Genet 2019; 28:279-289. [PMID: 30289454 DOI: 10.1093/hmg/ddy349] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 09/26/2018] [Indexed: 12/21/2022] Open
Abstract
Like other single-gene disorders, muscular dystrophy displays a range of phenotypic heterogeneity even with the same primary mutation. Identifying genetic modifiers capable of altering the course of muscular dystrophy is one approach to deciphering gene-gene interactions that can be exploited for therapy development. To this end, we used an intercross strategy in mice to map modifiers of muscular dystrophy. We interrogated genes of interest in an interval on mouse chromosome 10 associated with body mass in muscular dystrophy as skeletal muscle contributes significantly to total body mass. Using whole-genome sequencing of the two parental mouse strains combined with deep RNA sequencing, we identified the Met62Ile substitution in the dual-specificity phosphatase 6 (Dusp6) gene from the DBA/2 J (D2) mouse strain. DUSP6 is a broadly expressed dual-specificity phosphatase protein, which binds and dephosphorylates extracellular-signal-regulated kinase (ERK), leading to decreased ERK activity. We found that the Met62Ile substitution reduced the interaction between DUSP6 and ERK resulting in increased ERK phosphorylation and ERK activity. In dystrophic muscle, DUSP6 Met62Ile is strongly upregulated to counteract its reduced activity. We found that myoblasts from the D2 background were insensitive to a specific small molecule inhibitor of DUSP6, while myoblasts expressing the canonical DUSP6 displayed enhanced proliferation after exposure to DUSP6 inhibition. These data identify DUSP6 as an important regulator of ERK activity in the setting of muscle growth and muscular dystrophy.
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Affiliation(s)
- Andy H Vo
- Committee on Development, Regeneration and Stem Cell Biology, The University of Chicago, Chicago, IL
| | | | - Anna Woo
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago IL
| | - Quan Q Gao
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago IL
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago IL
| | - Katherine S Fallon
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago IL
| | - Mattia Quattrocelli
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago IL
| | - Michele Hadhazy
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago IL
| | - Patrick G T Page
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago IL
| | - Zugen Chen
- Departments of Human Genetics and Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Ascia Eskin
- Departments of Human Genetics and Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Kevin Squire
- Departments of Human Genetics and Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Stanley F Nelson
- Departments of Human Genetics and Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago IL
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Aubert G, Barefield DY, Demonbreun AR, Ramratnam M, Fallon KS, Warner JL, Rossi AE, Hadhazy M, Makielski JC, McNally EM. Deletion of Sulfonylurea Receptor 2 in the Adult Myocardium Enhances Cardiac Glucose Uptake and Is Cardioprotective. JACC Basic Transl Sci 2019; 4:251-268. [PMID: 31061927 PMCID: PMC6488756 DOI: 10.1016/j.jacbts.2018.11.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 11/24/2018] [Accepted: 11/26/2018] [Indexed: 11/05/2022]
Abstract
In the heart, SUR2 couples with a potassium channel to form an adenosine triphosphate–sensitive complex that responds to the energy state of the cell. The authors deleted SUR2 in adult cardiomyocytes and found a shift of the heart toward glycolytic metabolism, which is protective under cardiac stress. SUR2 was found to complex with glucose transporter type 4, the major glucose transporter. Drugs that antagonize the SUR2 receptor may be cardioprotective and useful for managing heart failure.
The adult myocardium relies on oxidative metabolism. In ischemic myocardium, such as the embryonic heart, glycolysis contributes more prominently as a fuel source. The sulfonylurea receptor 2 (SUR2) was previously implicated in the normal myocardial transition from glycolytic to oxidative metabolism that occurs during adaptation to postnatal life. This receptor was now selectively deleted in adult mouse myocardium resulting in protection from ischemia reperfusion injury. SUR2-deleted cardiomyocytes had enhanced glucose uptake, and SUR2 forms a complex with the major glucose transporter. These data identify the SUR2 receptor as a target to shift cardiac metabolism to protect against myocardial injury.
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Key Words
- 2DG, 2-deoxy-D-glucose
- ABCC9
- EDTA, ethylenediaminetetraacetic acid
- FL Ex5, LoxP sites flanking exon 5
- GFP, green fluorescent protein
- GLUT, glucose transporter
- HEK293T, human embryonic kidney 293T
- KATP, adenosine triphosphate–sensitive potassium
- Kir, inward rectifying potassium channel
- LVDP, left ventricular developed pressure
- MCM, αMHC-MerCreMer
- PCR, polymerase chain reaction
- SUR, sulfonylurea receptor
- ischemia
- potassium ATP channels
- sulfonylurea
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Affiliation(s)
- Gregory Aubert
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago Illinois
| | - David Y Barefield
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago Illinois
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago Illinois
| | - Mohun Ramratnam
- Division of Cardiology, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin
| | - Katherine S Fallon
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago Illinois
| | - James L Warner
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago Illinois
| | - Ann E Rossi
- Section of Cardiology, University of Chicago, Chicago Illinois
| | - Michele Hadhazy
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago Illinois
| | - Jonathan C Makielski
- Division of Cardiology, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin
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Gordish-Dressman H, Willmann R, Dalle Pazze L, Kreibich A, van Putten M, Heydemann A, Bogdanik L, Lutz C, Davies K, Demonbreun AR, Duan D, Elsey D, Fukada SI, Girgenrath M, Patrick Gonzalez J, Grounds MD, Nichols A, Partridge T, Passini M, Sanarica F, Schnell FJ, Wells DJ, Yokota T, Young CS, Zhong Z, Spurney C, Spencer M, De Luca A, Nagaraju K, Aartsma-Rus A. "Of Mice and Measures": A Project to Improve How We Advance Duchenne Muscular Dystrophy Therapies to the Clinic. J Neuromuscul Dis 2019; 5:407-417. [PMID: 30198876 PMCID: PMC6218134 DOI: 10.3233/jnd-180324] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A new line of dystrophic mdx mice on the DBA/2J (D2) background has emerged as a candidate to study the efficacy of therapeutic approaches for Duchenne muscular dystrophy (DMD). These mice harbor genetic polymorphisms that appear to increase the severity of the dystropathology, with disease modifiers that also occur in DMD patients, making them attractive for efficacy studies and drug development. This workshop aimed at collecting and consolidating available data on the pathological features and the natural history of these new D2/mdx mice, for comparison with classic mdx mice and controls, and to identify gaps in information and their potential value. The overall aim is to establish guidance on how to best use the D2/mdx mouse model in preclinical studies.
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Affiliation(s)
| | | | | | | | - Maaike van Putten
- Department of Human Genetics, Leiden University Medical Center, the Netherlands
| | - Ahlke Heydemann
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, IL, USA
| | | | | | - Kay Davies
- Department of Physiology, University of Oxford, Anatomy and Genetics, Oxford, UK
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Dongsheng Duan
- Department of Molecular Microbiology and Immunology, Department of Neurology, Department of Biomedical Sciences and Department of Bioengineering, University of Missouri, Columbia, MO, USA
| | - David Elsey
- Summit Therapeutics, Abingdon, Oxfordshire, UK
| | - So-Ichiro Fukada
- Laboratory of Molecular and Cellular Physiology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | | | | | - Miranda D Grounds
- School of Human Science, the University of Western Australia, Perth, Australia
| | | | | | | | - Francesca Sanarica
- Department of Pharmacy and Drug Sciences, Unit of Pharmacology, University of Bari "Aldo Moro", Italy
| | | | - Dominic J Wells
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London, UK
| | | | - Courtney S Young
- Department of Neurology, Molecular Biology Institute, Center for Duchenne Muscular Dystrophy at UCLA, University of California, Los Angeles, CA, USA
| | | | | | - Melissa Spencer
- Department of Neurology, Molecular Biology Institute, Center for Duchenne Muscular Dystrophy at UCLA, University of California, Los Angeles, CA, USA
| | - Annamaria De Luca
- Department of Pharmacy and Drug Sciences, Unit of Pharmacology, University of Bari "Aldo Moro", Italy
| | - Kanneboyina Nagaraju
- School of Pharmacy and Pharmaceutical Sciences, Binghamton University, New York, USA
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Wyatt EJ, Demonbreun AR, Kim EY, Puckelwartz MJ, Vo AH, Dellefave-Castillo LM, Gao QQ, Vainzof M, Pavanello RCM, Zatz M, McNally EM. Efficient exon skipping of SGCG mutations mediated by phosphorodiamidate morpholino oligomers. JCI Insight 2018; 3:99357. [PMID: 29720576 DOI: 10.1172/jci.insight.99357] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 04/05/2018] [Indexed: 12/15/2022] Open
Abstract
Exon skipping uses chemically modified antisense oligonucleotides to modulate RNA splicing. Therapeutically, exon skipping can bypass mutations and restore reading frame disruption by generating internally truncated, functional proteins to rescue the loss of native gene expression. Limb-girdle muscular dystrophy type 2C is caused by autosomal recessive mutations in the SGCG gene, which encodes the dystrophin-associated protein γ-sarcoglycan. The most common SGCG mutations disrupt the transcript reading frame abrogating γ-sarcoglycan protein expression. In order to treat most SGCG gene mutations, it is necessary to skip 4 exons in order to restore the SGCG transcript reading frame, creating an internally truncated protein referred to as Mini-Gamma. Using direct reprogramming of human cells with MyoD, myogenic cells were tested with 2 antisense oligonucleotide chemistries, 2'-O-methyl phosphorothioate oligonucleotides and vivo-phosphorodiamidate morpholino oligomers, to induce exon skipping. Treatment with vivo-phosphorodiamidate morpholino oligomers demonstrated efficient skipping of the targeted exons and corrected the mutant reading frame, resulting in the expression of a functional Mini-Gamma protein. Antisense-induced exon skipping of SGCG occurred in normal cells and those with multiple distinct SGCG mutations, including the most common 521ΔT mutation. These findings demonstrate a multiexon-skipping strategy applicable to the majority of limb-girdle muscular dystrophy 2C patients.
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Affiliation(s)
- Eugene J Wyatt
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ellis Y Kim
- Committee on Molecular Medicine and Molecular Pathogenesis and
| | - Megan J Puckelwartz
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Andy H Vo
- Committee on Developmental Biology and Regenerative Medicine, The University of Chicago, Chicago, Illinois, USA
| | - Lisa M Dellefave-Castillo
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Quan Q Gao
- Division of Hematology/Oncology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Mariz Vainzof
- Human Genome and Stem-Cell Center, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Rita C M Pavanello
- Human Genome and Stem-Cell Center, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Mayana Zatz
- Human Genome and Stem-Cell Center, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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38
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Quattrocelli M, Capote J, Ohiri JC, Warner JL, Vo AH, Earley JU, Hadhazy M, Demonbreun AR, Spencer MJ, McNally EM. Genetic modifiers of muscular dystrophy act on sarcolemmal resealing and recovery from injury. PLoS Genet 2017; 13:e1007070. [PMID: 29065150 PMCID: PMC5669489 DOI: 10.1371/journal.pgen.1007070] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 11/03/2017] [Accepted: 10/11/2017] [Indexed: 12/17/2022] Open
Abstract
Genetic disruption of the dystrophin complex produces muscular dystrophy characterized by a fragile muscle plasma membrane leading to excessive muscle degeneration. Two genetic modifiers of Duchenne Muscular Dystrophy implicate the transforming growth factor β (TGFβ) pathway, osteopontin encoded by the SPP1 gene and latent TGFβ binding protein 4 (LTBP4). We now evaluated the functional effect of these modifiers in the context of muscle injury and repair to elucidate their mechanisms of action. We found that excess osteopontin exacerbated sarcolemmal injury, and correspondingly, that loss of osteopontin reduced injury extent both in isolated myofibers and in muscle in vivo. We found that ablation of osteopontin was associated with reduced expression of TGFβ and TGFβ-associated pathways. We identified that increased TGFβ resulted in reduced expression of Anxa1 and Anxa6, genes encoding key components of the muscle sarcolemma resealing process. Genetic manipulation of Ltbp4 in dystrophic muscle also directly modulated sarcolemmal resealing, and Ltbp4 alleles acted in concert with Anxa6, a distinct modifier of muscular dystrophy. These data provide a model in which a feed forward loop of TGFβ and osteopontin directly impacts the capacity of muscle to recover from injury, and identifies an intersection of genetic modifiers on muscular dystrophy. Genetic modifiers for muscular dystrophy have been identified through transcriptomic and genomic profiling in humans and mouse models. Two modifiers, Ltbp4 and Spp1, encode extracellular proteins while a third modifier, Anxa6, specifies a membrane-associated protein. Using a model of muscle injury, we assessed the interaction of these modifiers, identifying a feed forward loop between Ltbp4 and Spp1 that promotes TGFβ signaling. This feed forward loop is expected to contribute to the progressive nature of muscular dystrophy. We also evaluated the interaction between Anxa6 and Ltbp4, identifying an additive effect of these two genetic modifiers.
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MESH Headings
- Animals
- Annexin A1/genetics
- Annexin A1/metabolism
- Annexin A6/genetics
- Annexin A6/metabolism
- Female
- Gene Expression Regulation
- Genes, Modifier
- Latent TGF-beta Binding Proteins/physiology
- Male
- Mice
- Mice, Inbred DBA
- Mice, Knockout
- Muscle, Skeletal/injuries
- Muscle, Skeletal/physiology
- Muscular Dystrophy, Animal/genetics
- Muscular Dystrophy, Animal/metabolism
- Muscular Dystrophy, Animal/pathology
- Osteopontin/genetics
- Osteopontin/metabolism
- Receptors, Transforming Growth Factor beta/genetics
- Receptors, Transforming Growth Factor beta/metabolism
- Recovery of Function
- Sarcolemma/physiology
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Affiliation(s)
- Mattia Quattrocelli
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Joanna Capote
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Joyce C. Ohiri
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - James L. Warner
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Andy H. Vo
- Committee on Development, Regeneration, and Stem Cell Biology, The University of Chicago, Chicago, Illinois, United States of America
| | - Judy U. Earley
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Michele Hadhazy
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Alexis R. Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Melissa J. Spencer
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Elizabeth M. McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
- * E-mail:
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39
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Quattrocelli M, Salamone IM, Page PG, Warner JL, Demonbreun AR, McNally EM. Intermittent Glucocorticoid Dosing Improves Muscle Repair and Function in Mice with Limb-Girdle Muscular Dystrophy. Am J Pathol 2017; 187:2520-2535. [PMID: 28823869 DOI: 10.1016/j.ajpath.2017.07.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/03/2017] [Accepted: 07/13/2017] [Indexed: 12/17/2022]
Abstract
The muscular dystrophies are genetically diverse. Shared pathological features among muscular dystrophies include breakdown, or loss of muscle, and accompanying fibrotic replacement. Novel strategies are needed to enhance muscle repair and function and to slow this pathological remodeling. Glucocorticoid steroids, like prednisone, are known to delay loss of ambulation in patients with Duchenne muscular dystrophy but are accompanied by prominent adverse effects. However, less is known about the effects of steroid administration in other types of muscular dystrophies, including limb-girdle muscular dystrophies (LGMDs). LGMD 2B is caused by loss of dysferlin, a membrane repair protein, and LGMD 2C is caused by loss of the dystrophin-associated protein, γ-sarcoglycan. Herein, we assessed the efficacy of steroid dosing on sarcolemmal repair, muscle function, histopathology, and the regenerative capacity of primary muscle cells. We found that in murine models of LGMD 2B and 2C, daily prednisone dosing reduced muscle damage and fibroinflammatory infiltration. However, daily prednisone dosing also correlated with increased muscle adipogenesis and atrophic remodeling. Conversely, intermittent dosing of prednisone, provided once weekly, enhanced muscle repair and did not induce atrophy or adipogenesis, and was associated with improved muscle function. These data indicate that dosing frequency of glucocorticoid steroids affects muscle remodeling in non-Duchenne muscular dystrophies, suggesting a positive outcome associated with intermittent steroid dosing in LGMD 2B and 2C muscle.
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Affiliation(s)
- Mattia Quattrocelli
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Isabella M Salamone
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Patrick G Page
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - James L Warner
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
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40
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Quattrocelli M, Barefield DY, Warner JL, Vo AH, Hadhazy M, Earley JU, Demonbreun AR, McNally EM. Intermittent glucocorticoid steroid dosing enhances muscle repair without eliciting muscle atrophy. J Clin Invest 2017; 127:2418-2432. [PMID: 28481224 DOI: 10.1172/jci91445] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 03/09/2017] [Indexed: 12/20/2022] Open
Abstract
Glucocorticoid steroids such as prednisone are prescribed for chronic muscle conditions such as Duchenne muscular dystrophy, where their use is associated with prolonged ambulation. The positive effects of chronic steroid treatment in muscular dystrophy are paradoxical because these steroids are also known to trigger muscle atrophy. Chronic steroid use usually involves once-daily dosing, although weekly dosing in children has been suggested for its reduced side effects on behavior. In this work, we tested steroid dosing in mice and found that a single pulse of glucocorticoid steroids improved sarcolemmal repair through increased expression of annexins A1 and A6, which mediate myofiber repair. This increased expression was dependent on glucocorticoid response elements upstream of annexins and was reinforced by the expression of forkhead box O1 (FOXO1). We compared weekly versus daily steroid treatment in mouse models of acute muscle injury and in muscular dystrophy and determined that both regimens provided comparable benefits in terms of annexin gene expression and muscle repair. However, daily dosing activated atrophic pathways, including F-box protein 32 (Fbxo32), which encodes atrogin-1. Conversely, weekly steroid treatment in mdx mice improved muscle function and histopathology and concomitantly induced the ergogenic transcription factor Krüppel-like factor 15 (Klf15) while decreasing Fbxo32. These findings suggest that intermittent, rather than daily, glucocorticoid steroid regimen promotes sarcolemmal repair and muscle recovery from injury while limiting atrophic remodeling.
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41
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Demonbreun AR, McNally EM. Muscle cell communication in development and repair. Curr Opin Pharmacol 2017; 34:7-14. [PMID: 28419894 DOI: 10.1016/j.coph.2017.03.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Revised: 02/25/2017] [Accepted: 03/06/2017] [Indexed: 12/18/2022]
Abstract
Under basal conditions, postnatal skeletal muscle displays little cell turnover. With injury, muscle initiates a rapid repair response to reseal damaged membrane, reactivating many developmental pathways to facilitate muscle regeneration and prevent tissue loss. Muscle precursor cells become activated accompanied by differentiation and fusion during both muscle growth and regeneration; inter-cellular communication is required for successful completion of these processes. Cellular communication is mediated by lipids, fusogenic membrane proteins, and exosomes. Muscle-derived exosomes carry proteins and micro RNAs as cargo. Secreted factors such as IGF-1, TGFβ, and myostatin are also released by muscle cells providing local signaling cues to modulate muscle fusion and regeneration. Proteins that regulate myoblast fusion also participate in membrane repair and regeneration. Here we will review methods of muscle cell communication focusing on proteins that mediate membrane fusion, exosomes, and autocrine factors.
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Affiliation(s)
- Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
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Demonbreun AR, Quattrocelli M, Barefield DY, Allen MV, Swanson KE, McNally EM. An actin-dependent annexin complex mediates plasma membrane repair in muscle. J Exp Med 2016. [DOI: 10.1084/jem.2137oia58] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Demonbreun AR, Quattrocelli M, Barefield DY, Allen MV, Swanson KE, McNally EM. An actin-dependent annexin complex mediates plasma membrane repair in muscle. J Cell Biol 2016; 213:705-18. [PMID: 27298325 PMCID: PMC4915191 DOI: 10.1083/jcb.201512022] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Accepted: 05/19/2016] [Indexed: 01/03/2023] Open
Abstract
Disruption of the plasma membrane often accompanies cellular injury, and in muscle, plasma membrane resealing is essential for efficient recovery from injury. Muscle contraction, especially of lengthened muscle, disrupts the sarcolemma. To define the molecular machinery that directs repair, we applied laser wounding to live mammalian myofibers and assessed translocation of fluorescently tagged proteins using high-resolution microscopy. Within seconds of membrane disruption, annexins A1, A2, A5, and A6 formed a tight repair "cap." Actin was recruited to the site of damage, and annexin A6 cap formation was both actin dependent and Ca(2+) regulated. Repair proteins, including dysferlin, EHD1, EHD2, MG53, and BIN1, localized adjacent to the repair cap in a "shoulder" region enriched with phosphatidlyserine. Dye influx into muscle fibers lacking both dysferlin and the related protein myoferlin was substantially greater than control or individual null muscle fibers, underscoring the importance of shoulder-localized proteins. These data define the cap and shoulder as subdomains within the repair complex accumulating distinct and nonoverlapping components.
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Affiliation(s)
| | | | - David Y Barefield
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611
| | - Madison V Allen
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611
| | - Kaitlin E Swanson
- Center for Genetic Medicine, Northwestern University, Chicago, IL 60611 Department of Pathology, The University of Chicago, Chicago, IL 60637
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Demonbreun AR, Allen MV, Warner JL, Barefield DY, Krishnan S, Swanson KE, Earley JU, McNally EM. Enhanced Muscular Dystrophy from Loss of Dysferlin Is Accompanied by Impaired Annexin A6 Translocation after Sarcolemmal Disruption. Am J Pathol 2016; 186:1610-22. [PMID: 27070822 DOI: 10.1016/j.ajpath.2016.02.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 01/20/2016] [Accepted: 02/11/2016] [Indexed: 02/03/2023]
Abstract
Dysferlin is a membrane-associated protein implicated in membrane resealing; loss of dysferlin leads to muscular dystrophy. We examined the same loss-of-function Dysf mutation in two different mouse strains, 129T2/SvEmsJ (Dysf(129)) and C57BL/6J (Dysf(B6)). Although there are many genetic differences between these two strains, we focused on polymorphisms in Anxa6 because these variants were previously associated with modifying a pathologically distinct form of muscular dystrophy and increased the production of a truncated annexin A6 protein. Dysferlin deficiency in the C57BL/6J background was associated with increased Evan's Blue dye uptake into muscle and increased serum creatine kinase compared to the 129T2/SvEmsJ background. In the C57BL/6J background, dysferlin loss was associated with enhanced pathologic severity, characterized by decreased mean fiber cross-sectional area, increased internalized nuclei, and increased fibrosis, compared to that in Dysf(129) mice. Macrophage infiltrate was also increased in Dysf(B6) muscle. High-resolution imaging of live myofibers demonstrated that fibers from Dysf(B6) mice displayed reduced translocation of full-length annexin A6 to the site of laser-induced sarcolemmal disruption compared to Dysf(129) myofibers, and impaired translocation of annexin A6 associated with impaired resealing of the sarcolemma. These results provide one mechanism by which the C57BL/6J background intensifies dysferlinopathy, giving rise to a more severe form of muscular dystrophy in the Dysf(B6) mouse model through increased membrane leak and inflammation.
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Affiliation(s)
| | - Madison V Allen
- Center for Genetic Medicine, Northwestern University, Chicago, Illinois
| | - James L Warner
- Center for Genetic Medicine, Northwestern University, Chicago, Illinois
| | - David Y Barefield
- Center for Genetic Medicine, Northwestern University, Chicago, Illinois
| | - Swathi Krishnan
- Department of Medicine, The University of Chicago, Chicago, Illinois
| | - Kaitlin E Swanson
- Department of Pathology, The University of Chicago, Chicago, Illinois
| | - Judy U Earley
- Center for Genetic Medicine, Northwestern University, Chicago, Illinois
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Abstract
Mature muscle has a unique structure that is amenable to live cell imaging. Herein, we describe the experimental protocol for expressing fluorescently labeled proteins in the flexor digitorum brevis (FDB) muscle. Conditions have been optimized to provide a large number of high quality myofibers expressing the electroporated plasmid while minimizing muscle damage. The method employs fluorescent tags on various proteins. Combining this expression method with high resolution confocal microscopy permits live cell imaging, including imaging after laser-induced damage. Fluorescent dyes combined with imaging of fluorescently-tagged proteins provides information regarding the basic structure of muscle and its response to stimuli.
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Abstract
Since an intact membrane is required for normal cellular homeostasis, membrane repair is essential for cell survival. Human genetic studies, combined with the development of novel animal models and refinement of techniques to study cellular injury, have now uncovered series of repair proteins highly relevant for human health. Many of the deficient repair pathways manifest in skeletal muscle, where defective repair processes result in myopathies or other forms of muscle disease. Dysferlin is a membrane-associated protein implicated in sarcolemmal repair and also linked to other membrane functions including the maintenance of transverse tubules in muscle. MG53, annexins, and Eps15 homology domain-containing proteins interact with dysferlin to form a membrane repair complex and similarly have roles in membrane trafficking in muscle. These molecular features of membrane repair are not unique to skeletal muscle, but rather skeletal muscle, due to its high demands, is more dependent on an efficient repair process. Phosphatidylserine and phosphatidylinositol 4,5-bisphosphate, as well as Ca(2+), are central regulators of membrane organization during repair. Given the importance of muscle health in disease and in aging, these pathways are targets to enhance muscle function and recovery from injury.
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47
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Gao QQ, Wyatt E, Goldstein JA, LoPresti P, Castillo LM, Gazda A, Petrossian N, Earley JU, Hadhazy M, Barefield DY, Demonbreun AR, Bönnemann C, Wolf M, McNally EM. Reengineering a transmembrane protein to treat muscular dystrophy using exon skipping. J Clin Invest 2015; 125:4186-95. [PMID: 26457733 DOI: 10.1172/jci82768] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 09/03/2015] [Indexed: 01/16/2023] Open
Abstract
Exon skipping uses antisense oligonucleotides as a treatment for genetic diseases. The antisense oligonucleotides used for exon skipping are designed to bypass premature stop codons in the target RNA and restore reading frame disruption. Exon skipping is currently being tested in humans with dystrophin gene mutations who have Duchenne muscular dystrophy. For Duchenne muscular dystrophy, the rationale for exon skipping derived from observations in patients with naturally occurring dystrophin gene mutations that generated internally deleted but partially functional dystrophin proteins. We have now expanded the potential for exon skipping by testing whether an internal, in-frame truncation of a transmembrane protein γ-sarcoglycan is functional. We generated an internally truncated γ-sarcoglycan protein that we have termed Mini-Gamma by deleting a large portion of the extracellular domain. Mini-Gamma provided functional and pathological benefits to correct the loss of γ-sarcoglycan in a Drosophila model, in heterologous cell expression studies, and in transgenic mice lacking γ-sarcoglycan. We generated a cellular model of human muscle disease and showed that multiple exon skipping could be induced in RNA that encodes a mutant human γ-sarcoglycan. Since Mini-Gamma represents removal of 4 of the 7 coding exons in γ-sarcoglycan, this approach provides a viable strategy to treat the majority of patients with γ-sarcoglycan gene mutations.
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MESH Headings
- Animals
- Codon, Nonsense/genetics
- Diaphragm/metabolism
- Diaphragm/pathology
- Drosophila Proteins/deficiency
- Drosophila Proteins/genetics
- Drosophila melanogaster/genetics
- Dystrophin-Associated Protein Complex/chemistry
- Exons
- Fibrosis
- Genetic Therapy
- HEK293 Cells
- Humans
- Mice
- Mice, Transgenic
- Muscle, Skeletal/metabolism
- Muscle, Skeletal/pathology
- Muscular Dystrophies, Limb-Girdle/genetics
- Muscular Dystrophies, Limb-Girdle/therapy
- Muscular Dystrophy, Animal/genetics
- Muscular Dystrophy, Animal/pathology
- Muscular Dystrophy, Animal/therapy
- Mutation
- Myocardium/metabolism
- Myocardium/pathology
- Oligonucleotides, Antisense/pharmacology
- Oligonucleotides, Antisense/therapeutic use
- Protein Engineering
- Protein Interaction Mapping
- Protein Structure, Tertiary
- RNA, Messenger/chemistry
- RNA, Messenger/genetics
- Recombinant Fusion Proteins/metabolism
- Sarcoglycans/biosynthesis
- Sarcoglycans/chemistry
- Sarcoglycans/deficiency
- Sarcoglycans/genetics
- Sarcolemma/metabolism
- Sequence Deletion
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Demonbreun AR, Swanson KE, Rossi AE, Deveaux HK, Earley JU, Allen MV, Arya P, Bhattacharyya S, Band H, Pytel P, McNally EM. Eps 15 Homology Domain (EHD)-1 Remodels Transverse Tubules in Skeletal Muscle. PLoS One 2015; 10:e0136679. [PMID: 26325203 PMCID: PMC4556691 DOI: 10.1371/journal.pone.0136679] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 08/06/2015] [Indexed: 11/19/2022] Open
Abstract
We previously showed that Eps15 homology domain-containing 1 (EHD1) interacts with ferlin proteins to regulate endocytic recycling. Myoblasts from Ehd1-null mice were found to have defective recycling, myoblast fusion, and consequently smaller muscles. When expressed in C2C12 cells, an ATPase dead-EHD1 was found to interfere with BIN1/amphiphysin 2. We now extended those findings by examining Ehd1-heterozygous mice since these mice survive to maturity in normal Mendelian numbers and provide a ready source of mature muscle. We found that heterozygosity of EHD1 was sufficient to produce ectopic and excessive T-tubules, including large intracellular aggregates that contained BIN1. The disorganized T-tubule structures in Ehd1-heterozygous muscle were accompanied by marked elevation of the T-tubule-associated protein DHPR and reduction of the triad linker protein junctophilin 2, reflecting defective triads. Consistent with this, Ehd1-heterozygous muscle had reduced force production. Introduction of ATPase dead-EHD1 into mature muscle fibers was sufficient to induce ectopic T-tubule formation, seen as large BIN1 positive structures throughout the muscle. Ehd1-heterozygous mice were found to have strikingly elevated serum creatine kinase and smaller myofibers, but did not display findings of muscular dystrophy. These data indicate that EHD1 regulates the maintenance of T-tubules through its interaction with BIN1 and links T-tubules defects with elevated creatine kinase and myopathy.
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Affiliation(s)
- Alexis R. Demonbreun
- Center for Genetic Medicine, Northwestern University, Chicago, IL, United States of America
- * E-mail:
| | - Kaitlin E. Swanson
- Department of Pathology, The University of Chicago, Chicago, IL, United States of America
| | - Ann E. Rossi
- Department of Medicine, The University of Chicago, Chicago, IL, United States of America
| | - H. Kieran Deveaux
- Department of Medicine, The University of Chicago, Chicago, IL, United States of America
| | - Judy U. Earley
- Center for Genetic Medicine, Northwestern University, Chicago, IL, United States of America
| | - Madison V. Allen
- Center for Genetic Medicine, Northwestern University, Chicago, IL, United States of America
| | - Priyanka Arya
- Department of Genetics, Cell Biology & Anatomy, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Sohinee Bhattacharyya
- Department of Pathology & Microbiology, Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Hamid Band
- Department of Pathology & Microbiology, Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Peter Pytel
- Department of Pathology, The University of Chicago, Chicago, IL, United States of America
| | - Elizabeth M. McNally
- Center for Genetic Medicine, Northwestern University, Chicago, IL, United States of America
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Lenhart KC, O'Neill TJ, Cheng Z, Dee R, Demonbreun AR, Li J, Xiao X, McNally EM, Mack CP, Taylor JM. GRAF1 deficiency blunts sarcolemmal injury repair and exacerbates cardiac and skeletal muscle pathology in dystrophin-deficient mice. Skelet Muscle 2015; 5:27. [PMID: 26301073 PMCID: PMC4546166 DOI: 10.1186/s13395-015-0054-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 08/04/2015] [Indexed: 11/18/2022] Open
Abstract
Background The plasma membranes of striated muscle cells are particularly susceptible to rupture as they endure significant mechanical stress and strain during muscle contraction, and studies have shown that defects in membrane repair can contribute to the progression of muscular dystrophy. The synaptotagmin-related protein, dysferlin, has been implicated in mediating rapid membrane repair through its ability to direct intracellular vesicles to sites of membrane injury. However, further work is required to identify the precise molecular mechanisms that govern dysferlin targeting and membrane repair. We previously showed that the bin–amphiphysin–Rvs (BAR)–pleckstrin homology (PH) domain containing Rho-GAP GTPase regulator associated with focal adhesion kinase-1 (GRAF1) was dynamically recruited to the tips of fusing myoblasts wherein it promoted membrane merging by facilitating ferlin-dependent capturing of intracellular vesicles. Because acute membrane repair responses involve similar vesicle trafficking complexes/events and because our prior studies in GRAF1-deficient tadpoles revealed a putative role for GRAF1 in maintaining muscle membrane integrity, we postulated that GRAF1 might also play an important role in facilitating dysferlin-dependent plasma membrane repair. Methods We used an in vitro laser-injury model to test whether GRAF1 was necessary for efficient muscle membrane repair. We also generated dystrophin/GRAF1 doubledeficient mice by breeding mdx mice with GRAF1 hypomorphic mice. Evans blue dye uptake and extensive morphometric analyses were used to assess sarcolemmal integrity and related pathologies in cardiac and skeletal muscles isolated from these mice. Results Herein, we show that GRAF1 is dynamically recruited to damaged skeletal and cardiac muscle plasma membranes and that GRAF1-depleted muscle cells have reduced membrane healing abilities. Moreover, we show that dystrophin depletion exacerbated muscle damage in GRAF1-deficient mice and that mice with dystrophin/GRAF1 double deficiency phenocopied the severe muscle pathologies observed in dystrophin/dysferlin-double null mice. Consistent with a model that GRAF1 facilitates dysferlin-dependent membrane patching, we found that GRAF1 associates with and regulates plasma membrane deposition of dysferlin. Conclusions Overall, our work indicates that GRAF1 facilitates dysferlin-dependent membrane repair following acute muscle injury. These findings indicate that GRAF1 might play a role in the phenotypic variation and pathological progression of cardiac and skeletal muscle degeneration in muscular dystrophy patients. Electronic supplementary material The online version of this article (doi:10.1186/s13395-015-0054-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kaitlin C Lenhart
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Thomas J O'Neill
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Zhaokang Cheng
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Rachel Dee
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Alexis R Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Jianbin Li
- Department of Gene Therapy Molecular Pharmaceutics, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Xiao Xiao
- Department of Gene Therapy Molecular Pharmaceutics, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Christopher P Mack
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA ; McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Joan M Taylor
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA ; McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
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50
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Abstract
Centronuclear myopathy is a lethal muscle disease. The most severe form of the disease, X-linked centronuclear myopathy, is due to mutations in the gene encoding myotubularin (MTM1), while mutations in dynamin 2 (DNM2) and amphiphysin 2/BIN1 (AMPH2) cause milder forms of myopathy. MTM1 is a lipid phosphatase, and mutations that disrupt this activity cause severe muscle wasting. In this issue of the JCI, Cowling and colleagues report on their finding of increased DNM2 levels in human and mouse muscle with MTM1 mutations. Partial reduction of Dnm2 in mice harboring Mtm1 mutations remarkably rescued muscle wasting and lethality, and this effect was muscle specific. DNM2 regulates membrane trafficking through vesicular scission, and it is presumed that reducing this activity accounts for improved outcome in X-linked centronuclear myopathy.
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