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Gahlawat S, Oruc D, Paul N, Ragheb M, Patel S, Fasasi O, Sharma P, Shreiber DI, Freeman JW. Tissue Engineered 3D Constructs for Volumetric Muscle Loss. Ann Biomed Eng 2024; 52:2325-2347. [PMID: 39085677 PMCID: PMC11329418 DOI: 10.1007/s10439-024-03541-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 05/08/2024] [Indexed: 08/02/2024]
Abstract
Severe injuries to skeletal muscles, including cases of volumetric muscle loss (VML), are linked to substantial tissue damage, resulting in functional impairment and lasting disability. While skeletal muscle can regenerate following minor damage, extensive tissue loss in VML disrupts the natural regenerative capacity of the affected muscle tissue. Existing clinical approaches for VML, such as soft-tissue reconstruction and advanced bracing methods, need to be revised to restore tissue function and are associated with limitations in tissue availability and donor-site complications. Advancements in tissue engineering (TE), particularly in scaffold design and the delivery of cells and growth factors, show promising potential for regenerating damaged skeletal muscle tissue and restoring function. This article provides a brief overview of the pathophysiology of VML and critiques the shortcomings of current treatments. The subsequent section focuses on the criteria for designing TE scaffolds, offering insights into various natural and synthetic biomaterials and cell types for effectively regenerating skeletal muscle. We also review multiple TE strategies involving both acellular and cellular scaffolds to encourage the development and maturation of muscle tissue and facilitate integration, vascularization, and innervation. Finally, the article explores technical challenges hindering successful translation into clinical applications.
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Affiliation(s)
- Sonal Gahlawat
- Department of Biomedical Engineering, Rutgers University-New Brunswick, Piscataway, NJ, USA
| | - Doga Oruc
- Department of Biomedical Engineering, Rutgers University-New Brunswick, Piscataway, NJ, USA
| | - Nikhil Paul
- Department of Biomedical Engineering, Rutgers University-New Brunswick, Piscataway, NJ, USA
| | - Mark Ragheb
- Department of Biomedical Engineering, Rutgers University-New Brunswick, Piscataway, NJ, USA
| | - Swati Patel
- Department of Biomedical Engineering, Rutgers University-New Brunswick, Piscataway, NJ, USA
| | - Oyinkansola Fasasi
- Department of Biomedical Engineering, Rutgers University-New Brunswick, Piscataway, NJ, USA
| | - Peeyush Sharma
- Department of Biomedical Engineering, Rutgers University-New Brunswick, Piscataway, NJ, USA
| | - David I Shreiber
- Department of Biomedical Engineering, Rutgers University-New Brunswick, Piscataway, NJ, USA
| | - Joseph W Freeman
- Department of Biomedical Engineering, Rutgers University-New Brunswick, Piscataway, NJ, USA.
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Wroblewski OM, Kennedy CS, Vega-Soto EE, Forester CE, Su EY, Nguyen MH, Cederna PS, Larkin LM. Impact of Passaging Primary Skeletal Muscle Cell Isolates on the Engineering of Skeletal Muscle. Tissue Eng Part A 2024. [PMID: 38874526 DOI: 10.1089/ten.tea.2024.0044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024] Open
Abstract
Volumetric muscle loss (VML) is a clinical state that results in impaired skeletal muscle function. Engineered skeletal muscle can serve as a treatment for VML. Currently, large biopsies are required to achieve the cells necessary for the fabrication of engineered muscle, leading to donor-site morbidity. Amplification of cell numbers using cell passaging may increase the usefulness of a single muscle biopsy for engineering muscle tissue. In this study, we evaluated the impact of passaging cells obtained from donor muscle tissue by analyzing characteristics of in vitro cellular growth and tissue-engineered skeletal muscle unit (SMU) structure and function. Human skeletal muscle cell isolates from three separate donors (P0-Control) were compared with cells passaged once (P1), twice (P2), or three times (P3) by monitoring SMU force production and determining muscle content and structure using immunohistochemistry. Data indicated that passaging decreased the number of satellite cells and increased the population doubling time. P1 SMUs had slightly greater contractile force and P2 SMUs showed statistically significant greater force production compared with P0 SMUs with no change in SMU muscle content. In conclusion, human skeletal muscle cells can be passaged twice without negatively impacting SMU muscle content or contractile function, providing the opportunity to potentially create larger SMUs from smaller biopsies, thereby producing clinically relevant sized grafts to aid in VML repair.
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Affiliation(s)
- Olga M Wroblewski
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Christopher S Kennedy
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Emmanuel E Vega-Soto
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Celeste E Forester
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Eileen Y Su
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Matthew H Nguyen
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Paul S Cederna
- Department of Plastic Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Lisa M Larkin
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA
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Bour RK, Garner GT, Peirce SM, Christ GJ. Optimized Biomanufacturing for Treatment of Volumetric Muscle Loss Enables Physiomimetic Recovery. Tissue Eng Part A 2024. [PMID: 38832858 DOI: 10.1089/ten.tea.2023.0315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024] Open
Abstract
Volumetric muscle loss (VML) injuries are defined by loss of sufficient skeletal muscle to produce persistent deficits in muscle form and function, with devastating lifelong consequences to both soldiers and civilians. There are currently no satisfactory treatments for VML injuries. The work described herein details the implementation of a fully enclosed bioreactor environment (FEBE) system that efficiently interfaces with our existing automated bioprinting and advanced biomanufacturing methods for cell deposition on sheet-based scaffolds for our previously described tissue-engineered muscle repair (TEMR) technology platform. Briefly, the TEMR technology consists of a porcine bladder acellular matrix seeded with skeletal muscle progenitor cells and preconditioned via 10% uniaxial cyclic stretch in a bioreactor. Overall, TEMR implantation in an established rat tibialis anterior (TA) VML injury model can result in 60 to ∼90% functional recovery. However, our original study documented >50% failure rate. That is, more than half of the implanted TEMR constructs produced no functional improvement beyond no treatment/repair. The high failure rate was attributed to the untoward mechanical disruption of TEMR during surgical implantation. In a follow-up study, adjustments were made to the geometry of both the VML injury and the TEMR construct, and the "nonresponder" group was reduced from over half the TEMR-treated animals to just 33%. Nonetheless, additional improvement is needed for clinical applicability. The main objectives of the current study were twofold: (1) explore the use of advanced biomanufacturing methods (i.e., FEBE bioreactor) to further improve TEMR reliability (i.e., increase functional response rate), (2) determine if previously established bioprinting methods, when coupled to the customized FEBE system would further improve the rate, magnitude or amplitude of functional outcomes following TEMR implantation in the same rat TA VML injury model. The current study demonstrates the unequivocal benefits of a customized bioreactor system that reduces manipulation of TEMR during cell seeding and maturation via bioprinting while simultaneously maximizing TEMR stability throughout the biofabrication process. This new biomanufacturing strategy not only accelerated the rate of functional recovery, but also eliminated all TEMR failures. In addition, implementation of bioprinting resulted in more physiomimetic skeletal muscle characteristics of repaired muscle tissue.
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Affiliation(s)
- Rachel K Bour
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA
| | - Gavin T Garner
- Department of Mechanical Engineering, University of Virginia, Charlottesville, Virginia, USA
| | - Shayn M Peirce
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA
- Department of Plastic Surgery, University of Virginia, Charlottesville, Virginia, USA
| | - George J Christ
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia, USA
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4
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Snow F, O'Connell C, Yang P, Kita M, Pirogova E, Williams RJ, Kapsa RMI, Quigley A. Engineering interfacial tissues: The myotendinous junction. APL Bioeng 2024; 8:021505. [PMID: 38841690 PMCID: PMC11151436 DOI: 10.1063/5.0189221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 05/06/2024] [Indexed: 06/07/2024] Open
Abstract
The myotendinous junction (MTJ) is the interface connecting skeletal muscle and tendon tissues. This specialized region represents the bridge that facilitates the transmission of contractile forces from muscle to tendon, and ultimately the skeletal system for the creation of movement. MTJs are, therefore, subject to high stress concentrations, rendering them susceptible to severe, life-altering injuries. Despite the scarcity of knowledge obtained from MTJ formation during embryogenesis, several attempts have been made to engineer this complex interfacial tissue. These attempts, however, fail to achieve the level of maturity and mechanical complexity required for in vivo transplantation. This review summarizes the strategies taken to engineer the MTJ, with an emphasis on how transitioning from static to mechanically inducive dynamic cultures may assist in achieving myotendinous maturity.
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Nguyen MH, Kennedy CS, Wroblewski OM, Su E, Hwang DH, Larkin LM. Impact of Human Recombinant Irisin on Tissue-Engineered Skeletal Muscle Structure and Function. Tissue Eng Part A 2024; 30:94-101. [PMID: 37842832 PMCID: PMC10818033 DOI: 10.1089/ten.tea.2023.0187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 09/29/2023] [Indexed: 10/17/2023] Open
Abstract
Tissue engineering of exogenous skeletal muscle units (SMUs) through isolation of muscle satellite cells from muscle biopsies is a potential treatment method for acute volumetric muscle loss (VML). A current issue with this treatment process is the limited capacity for muscle stem cell (satellite cell) expansion in cell culture, resulting in a decreased ability to obtain enough cells to fabricate SMUs of appropriate size and structural quality and that produce native levels of contractile force. This study determined the impact of human recombinant irisin on the growth and development of three-dimensional (3D) engineered skeletal muscle. Muscle satellite cells were cultured without irisin (control) or with 50, 100, or 250 ng/mL of irisin supplementation. Light microscopy was used to analyze myotube formation with particular focus placed on the diameter and density of the monotubes during growth of the 3D SMU. Following the formation of 3D constructs, SMUs underwent measurement of maximum tetanic force to analyze contractile function, as well as immunohistochemical staining, to characterize muscle structure. The results indicate that irisin supplementation with 250 ng/mL significantly increased the average diameter of myotubes and increased the proliferation and differentiation of myoblasts in culture but did not have a consistent significant impact on force production. In conclusion, supplementation with 250 ng/mL of human recombinant irisin promotes the proliferation and differentiation of myotubes and has the potential for impacting contractile force production in scaffold-free tissue-engineered skeletal muscle.
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Affiliation(s)
- Matthew H. Nguyen
- Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Olga M. Wroblewski
- Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Eileen Su
- Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Derek H. Hwang
- Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Lisa M. Larkin
- Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA
- Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
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Han S, Cruz SH, Park S, Shin SR. Nano-biomaterials and advanced fabrication techniques for engineering skeletal muscle tissue constructs in regenerative medicine. NANO CONVERGENCE 2023; 10:48. [PMID: 37864632 PMCID: PMC10590364 DOI: 10.1186/s40580-023-00398-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 10/10/2023] [Indexed: 10/23/2023]
Abstract
Engineered three-dimensional (3D) tissue constructs have emerged as a promising solution for regenerating damaged muscle tissue resulting from traumatic or surgical events. 3D architecture and function of the muscle tissue constructs can be customized by selecting types of biomaterials and cells that can be engineered with desired shapes and sizes through various nano- and micro-fabrication techniques. Despite significant progress in this field, further research is needed to improve, in terms of biomaterials properties and fabrication techniques, the resemblance of function and complex architecture of engineered constructs to native muscle tissues, potentially enhancing muscle tissue regeneration and restoring muscle function. In this review, we discuss the latest trends in using nano-biomaterials and advanced nano-/micro-fabrication techniques for creating 3D muscle tissue constructs and their regeneration ability. Current challenges and potential solutions are highlighted, and we discuss the implications and opportunities of a future perspective in the field, including the possibility for creating personalized and biomanufacturable platforms.
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Affiliation(s)
- Seokgyu Han
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- School of Mechanical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Korea
| | - Sebastián Herrera Cruz
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Sungsu Park
- School of Mechanical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Korea.
- Department of Biophysics, Institute of Quantum Biophysics (IQB), Sungkyunkwan University (SKKU), Suwon, 16419, Korea.
| | - Su Ryon Shin
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA.
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Fletcher E, Miserlis D, Sorokolet K, Wilburn D, Bradley C, Papoutsi E, Wilkinson T, Ring A, Ferrer L, Haynatzki G, Smith RS, Bohannon WT, Koutakis P. Diet-induced obesity augments ischemic myopathy and functional decline in a murine model of peripheral artery disease. Transl Res 2023; 260:17-31. [PMID: 37220835 DOI: 10.1016/j.trsl.2023.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/10/2023] [Accepted: 05/15/2023] [Indexed: 05/25/2023]
Abstract
Peripheral artery disease (PAD) causes an ischemic myopathy contributing to patient disability and mortality. Most preclinical models to date use young, healthy rodents with limited translatability to human disease. Although PAD incidence increases with age, and obesity is a common comorbidity, the pathophysiologic association between these risk factors and PAD myopathy is unknown. Using our murine model of PAD, we sought to elucidate the combined effect of age, diet-induced obesity and chronic hindlimb ischemia (HLI) on (1) mobility, (2) muscle contractility, and markers of muscle (3) mitochondrial content and function, (4) oxidative stress and inflammation, (5) proteolysis, and (6) cytoskeletal damage and fibrosis. Following 16-weeks of high-fat, high-sucrose, or low-fat, low-sucrose feeding, HLI was induced in 18-month-old C57BL/6J mice via the surgical ligation of the left femoral artery at 2 locations. Animals were euthanized 4-weeks post-ligation. Results indicate mice with and without obesity shared certain myopathic changes in response to chronic HLI, including impaired muscle contractility, altered mitochondrial electron transport chain complex content and function, and compromised antioxidant defense mechanisms. However, the extent of mitochondrial dysfunction and oxidative stress was significantly greater in obese ischemic muscle compared to non-obese ischemic muscle. Moreover, functional impediments, such as delayed post-surgical recovery of limb function and reduced 6-minute walking distance, as well as accelerated intramuscular protein breakdown, inflammation, cytoskeletal damage, and fibrosis were only evident in mice with obesity. As these features are consistent with human PAD myopathy, our model could be a valuable tool to test new therapeutics.
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Affiliation(s)
- Emma Fletcher
- Department of Biology, Baylor University, Waco, Texas
| | - Dimitrios Miserlis
- Department of Surgery, University of Texas at Austin Dell Medical School, Austin, Texas
| | | | - Dylan Wilburn
- Department of Health, Human Performance and Recreation, Baylor University, Waco, Texas
| | | | | | | | - Andrew Ring
- Department of Biology, Baylor University, Waco, Texas
| | - Lucas Ferrer
- Department of Surgery, University of Texas at Austin Dell Medical School, Austin, Texas
| | - Gleb Haynatzki
- Department of Biostatistics, University of Nebraska Medical Center, Omaha, Nebraska
| | - Robert S Smith
- Department of Surgery, Baylor Scott & White Medical Center, Temple, Texas
| | - William T Bohannon
- Department of Surgery, Baylor Scott & White Medical Center, Temple, Texas
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Chan AHP, Jain I, Oropeza BP, Zhou T, Nelsen B, Geisse NA, Huang NF. Combinatorial extracellular matrix cues with mechanical strain induce differential effects on myogenesis in vitro. Biomater Sci 2023; 11:5893-5907. [PMID: 37477446 PMCID: PMC10443049 DOI: 10.1039/d3bm00448a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 06/12/2023] [Indexed: 07/22/2023]
Abstract
Skeletal muscle regeneration remains a clinical unmet need for volumetric muscle loss and atrophy where muscle function cannot be restored to prior capacity. Current experimental approaches do not account for the complex microenvironmental factors that modulate myogenesis. In this study we developed a biomimetic tissue chip platform to systematically study the combined effects of the extracellular matrix (ECM) microenvironment and mechanical strain on myogenesis of murine myoblasts. Using stretchable tissue chips composed of collagen I (C), fibronectin (F) and laminin (L), as well as their combinations thereof, we tested the addition of mechanical strain regimens on myogenesis at the transcriptomic and translational levels. Our results show that ECMs have a significant effect on myotube formation in C2C12 murine myoblasts. Under static conditions, laminin substrates induced the longest myotubes, whereas fibronectin produced the widest myotubes. Combinatorial ECMs showed non-intuitive effects on myotube formation. Genome-wide analysis revealed the upregulation in actin cytoskeletal related genes that are suggestive of myogenesis. When mechanical strain was introduced to C + F + L combinatorial ECM substrates in the form of constant or intermittent uniaxial strain at low (5%) and high (15%) levels, we observed synergistic enhancements in myotube width, along with transcriptomic upregulation in myosin heavy chain genes. Together, these studies highlight the complex role of microenvironmental factors such as ECM interactions and strain on myotube formation and the underlying signaling pathways.
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Affiliation(s)
- Alex H P Chan
- Stanford Cardiovascular Institute, Stanford, CA, USA.
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
- Center for Tissue Regeneration, Repair and Restoration, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Ishita Jain
- Stanford Cardiovascular Institute, Stanford, CA, USA.
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
- Center for Tissue Regeneration, Repair and Restoration, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Beu P Oropeza
- Stanford Cardiovascular Institute, Stanford, CA, USA.
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
- Center for Tissue Regeneration, Repair and Restoration, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Tony Zhou
- Stanford Cardiovascular Institute, Stanford, CA, USA.
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | | | | | - Ngan F Huang
- Stanford Cardiovascular Institute, Stanford, CA, USA.
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
- Center for Tissue Regeneration, Repair and Restoration, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
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Tomasch J, Maleiner B, Hromada C, Szwarc-Hofbauer D, Teuschl-Woller AH. Cyclic Tensile Stress Induces Skeletal Muscle Hypertrophy and Myonuclear Accretion in a 3D Model. Tissue Eng Part A 2023; 29:257-268. [PMID: 36606693 DOI: 10.1089/ten.tea.2022.0182] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Skeletal muscle is highly adaptive to mechanical stress due to its resident stem cells and the pronounced level of myotube plasticity. Herein, we study the adaptation to mechanical stress and its underlying molecular mechanisms in a tissue-engineered skeletal muscle model. We subjected differentiated 3D skeletal muscle-like constructs to cyclic tensile stress using a custom-made bioreactor system, which resulted in immediate activation of stress-related signal transducers (Erk1/2, p38). Cell cycle re-entry, increased proliferation, and onset of myogenesis indicated subsequent myoblast activation. Furthermore, elevated focal adhesion kinase and β-catenin activity in mechanically stressed constructs suggested increased cell adhesion and migration. After 3 days of mechanical stress, gene expression of the fusogenic markers MyoMaker and MyoMixer, myotube diameter, myonuclear accretion, as well as S6 activation, were significantly increased. Our results highlight that we established a promising tool to study sustained adaptation to mechanical stress in healthy, hypertrophic, or regenerating skeletal muscle.
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Affiliation(s)
- Janine Tomasch
- Department Life Science Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria.,The Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Babette Maleiner
- Department Life Science Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria.,The Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Carina Hromada
- Department Life Science Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria.,The Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Dorota Szwarc-Hofbauer
- Department Life Science Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria.,The Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Andreas H Teuschl-Woller
- Department Life Science Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria.,The Austrian Cluster for Tissue Regeneration, Vienna, Austria
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Motherwell JM, Dolan CP, Kanovka SS, Edwards JB, Franco SR, Janakiram NB, Valerio MS, Goldman SM, Dearth CL. Effects of Adjunct Antifibrotic Treatment within a Regenerative Rehabilitation Paradigm for Volumetric Muscle Loss. Int J Mol Sci 2023; 24:3564. [PMID: 36834976 PMCID: PMC9964131 DOI: 10.3390/ijms24043564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/03/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
The use of a rehabilitation approach that promotes regeneration has the potential to improve the efficacy of pro-regenerative therapies and maximize functional outcomes in the treatment of volumetric muscle loss (VML). An adjunct antifibrotic treatment could further enhance functional gains by reducing fibrotic scarring. This study aimed to evaluate the potential synergistic effects of losartan, an antifibrotic pharmaceutical, paired with a voluntary wheel running rehabilitation strategy to enhance a minced muscle graft (MMG) pro-regenerative therapy in a rodent model of VML. The animals were randomly assigned into four groups: (1) antifibrotic with rehabilitation, (2) antifibrotic without rehabilitation, (3) vehicle treatment with rehabilitation, and (4) vehicle treatment without rehabilitation. At 56 days, the neuromuscular function was assessed, and muscles were collected for histological and molecular analysis. Surprisingly, we found that the losartan treatment decreased muscle function in MMG-treated VML injuries by 56 days, while the voluntary wheel running elicited no effect. Histologic and molecular analysis revealed that losartan treatment did not reduce fibrosis. These findings suggest that losartan treatment as an adjunct therapy to a regenerative rehabilitation strategy negatively impacts muscular function and fails to promote myogenesis following VML injury. There still remains a clinical need to develop a regenerative rehabilitation treatment strategy for traumatic skeletal muscle injuries. Future studies should consider optimizing the timing and duration of adjunct antifibrotic treatments to maximize functional outcomes in VML injuries.
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Affiliation(s)
- Jessica M. Motherwell
- DoD-VA Extremity Trauma and Amputation Center of Excellence, Montgomery, MD 20815, USA
- Department of Surgery, Walter Reed National Military Medical Center, Uniformed Services University of the Health Sciences, Montgomery, MD 20815, USA
| | - Connor P. Dolan
- DoD-VA Extremity Trauma and Amputation Center of Excellence, Montgomery, MD 20815, USA
- Department of Surgery, Walter Reed National Military Medical Center, Uniformed Services University of the Health Sciences, Montgomery, MD 20815, USA
| | - Sergey S. Kanovka
- DoD-VA Extremity Trauma and Amputation Center of Excellence, Montgomery, MD 20815, USA
- Department of Surgery, Walter Reed National Military Medical Center, Uniformed Services University of the Health Sciences, Montgomery, MD 20815, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Montgomery, MD 20817, USA
| | - Jorge B. Edwards
- DoD-VA Extremity Trauma and Amputation Center of Excellence, Montgomery, MD 20815, USA
- Department of Surgery, Walter Reed National Military Medical Center, Uniformed Services University of the Health Sciences, Montgomery, MD 20815, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Montgomery, MD 20817, USA
| | - Sarah R. Franco
- DoD-VA Extremity Trauma and Amputation Center of Excellence, Montgomery, MD 20815, USA
- Department of Surgery, Walter Reed National Military Medical Center, Uniformed Services University of the Health Sciences, Montgomery, MD 20815, USA
| | - Naveena B. Janakiram
- DoD-VA Extremity Trauma and Amputation Center of Excellence, Montgomery, MD 20815, USA
- Department of Surgery, Walter Reed National Military Medical Center, Uniformed Services University of the Health Sciences, Montgomery, MD 20815, USA
| | - Michael S. Valerio
- DoD-VA Extremity Trauma and Amputation Center of Excellence, Montgomery, MD 20815, USA
- Department of Surgery, Walter Reed National Military Medical Center, Uniformed Services University of the Health Sciences, Montgomery, MD 20815, USA
| | - Stephen M. Goldman
- DoD-VA Extremity Trauma and Amputation Center of Excellence, Montgomery, MD 20815, USA
- Department of Surgery, Walter Reed National Military Medical Center, Uniformed Services University of the Health Sciences, Montgomery, MD 20815, USA
| | - Christopher L. Dearth
- DoD-VA Extremity Trauma and Amputation Center of Excellence, Montgomery, MD 20815, USA
- Department of Surgery, Walter Reed National Military Medical Center, Uniformed Services University of the Health Sciences, Montgomery, MD 20815, USA
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11
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Local IL-10 delivery modulates the immune response and enhances repair of volumetric muscle loss muscle injury. Sci Rep 2023; 13:1983. [PMID: 36737628 PMCID: PMC9898301 DOI: 10.1038/s41598-023-27981-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 01/11/2023] [Indexed: 02/05/2023] Open
Abstract
This study was designed to test the hypothesis that in addition to repairing the architectural and cellular cues via regenerative medicine, the delivery of immune cues (immunotherapy) may be needed to enhance regeneration following volumetric muscle loss (VML) injury. We identified IL-10 signaling as a promising immunotherapeutic target. To explore the impact of targeting IL-10 signaling, tibialis anterior (TA) VML injuries were created and then treated in rats using autologous minced muscle (MM). Animals received either recombinant rat IL-10 or phosphate buffered saline (PBS) controls injections at the site of VML repair beginning 7 days post injury (DPI) and continuing every other day (4 injections total) until 14 DPI. At 56 DPI (study endpoint), significant improvements to TA contractile torque (82% of uninjured values & 170% of PBS values), TA mass, and myofiber size in response to IL-10 treatment were detected. Whole transcriptome analysis at 14 DPI revealed activation of IL-10 signaling, muscle hypertrophy, and lymphocytes signaling pathways. Expression of ST2, a regulatory T (Treg) cell receptor, was dramatically increased at the VML repair site in response to IL-10 treatment when compared to PBS controls. The findings suggest that the positive effect of delayed IL-10 delivery might be due to immuno-suppressive Treg cell recruitment.
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12
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Gosselin MRF, Mournetas V, Borczyk M, Verma S, Occhipinti A, Róg J, Bozycki L, Korostynski M, Robson SC, Angione C, Pinset C, Gorecki DC. Loss of full-length dystrophin expression results in major cell-autonomous abnormalities in proliferating myoblasts. eLife 2022; 11:e75521. [PMID: 36164827 PMCID: PMC9514850 DOI: 10.7554/elife.75521] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 09/02/2022] [Indexed: 12/05/2022] Open
Abstract
Duchenne muscular dystrophy (DMD) affects myofibers and muscle stem cells, causing progressive muscle degeneration and repair defects. It was unknown whether dystrophic myoblasts-the effector cells of muscle growth and regeneration-are affected. Using transcriptomic, genome-scale metabolic modelling and functional analyses, we demonstrate, for the first time, convergent abnormalities in primary mouse and human dystrophic myoblasts. In Dmdmdx myoblasts lacking full-length dystrophin, the expression of 170 genes was significantly altered. Myod1 and key genes controlled by MyoD (Myog, Mymk, Mymx, epigenetic regulators, ECM interactors, calcium signalling and fibrosis genes) were significantly downregulated. Gene ontology analysis indicated enrichment in genes involved in muscle development and function. Functionally, we found increased myoblast proliferation, reduced chemotaxis and accelerated differentiation, which are all essential for myoregeneration. The defects were caused by the loss of expression of full-length dystrophin, as similar and not exacerbated alterations were observed in dystrophin-null Dmdmdx-βgeo myoblasts. Corresponding abnormalities were identified in human DMD primary myoblasts and a dystrophic mouse muscle cell line, confirming the cross-species and cell-autonomous nature of these defects. The genome-scale metabolic analysis in human DMD myoblasts showed alterations in the rate of glycolysis/gluconeogenesis, leukotriene metabolism, and mitochondrial beta-oxidation of various fatty acids. These results reveal the disease continuum: DMD defects in satellite cells, the myoblast dysfunction affecting muscle regeneration, which is insufficient to counteract muscle loss due to myofiber instability. Contrary to the established belief, our data demonstrate that DMD abnormalities occur in myoblasts, making these cells a novel therapeutic target for the treatment of this lethal disease.
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Affiliation(s)
- Maxime RF Gosselin
- School of Pharmacy and Biomedical Sciences, University of PortsmouthPortsmouthUnited Kingdom
| | | | - Malgorzata Borczyk
- Laboratory of Pharmacogenomics, Maj Institute of Pharmacology PASKrakowPoland
| | - Suraj Verma
- School of Computing, Engineering and Digital Technologies, Teesside UniversityMiddlesbroughUnited Kingdom
| | - Annalisa Occhipinti
- School of Computing, Engineering and Digital Technologies, Teesside UniversityMiddlesbroughUnited Kingdom
| | - Justyna Róg
- School of Pharmacy and Biomedical Sciences, University of PortsmouthPortsmouthUnited Kingdom
- Laboratory of Cellular Metabolism, Nencki Institute of Experimental BiologyWarsawPoland
| | - Lukasz Bozycki
- School of Pharmacy and Biomedical Sciences, University of PortsmouthPortsmouthUnited Kingdom
- Laboratory of Cellular Metabolism, Nencki Institute of Experimental BiologyWarsawPoland
| | - Michal Korostynski
- Laboratory of Pharmacogenomics, Maj Institute of Pharmacology PASKrakowPoland
| | - Samuel C Robson
- School of Pharmacy and Biomedical Sciences, University of PortsmouthPortsmouthUnited Kingdom
- Centre for Enzyme Innovation, University of PortsmouthPortsmouthUnited Kingdom
| | - Claudio Angione
- School of Computing, Engineering and Digital Technologies, Teesside UniversityMiddlesbroughUnited Kingdom
| | | | - Dariusz C Gorecki
- School of Pharmacy and Biomedical Sciences, University of PortsmouthPortsmouthUnited Kingdom
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13
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Dolan CP, Motherwell JM, Franco SR, Janakiram NB, Valerio MS, Goldman SM, Dearth CL. Evaluating the potential use of functional fibrosis to facilitate improved outcomes following volumetric muscle loss injury. Acta Biomater 2022; 140:379-388. [PMID: 34843950 DOI: 10.1016/j.actbio.2021.11.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 11/04/2021] [Accepted: 11/23/2021] [Indexed: 11/01/2022]
Abstract
Volumetric muscle loss (VML) was defined as the frank loss of skeletal muscle tissue with associated chronic functional deficits. Significant effort has been dedicated to developing approaches for treating VML injuries, most of which have focused on stimulating regeneration of the affected musculature via a variety of approaches (e.g., biomaterials). VML injury induces a prolonged inflammatory response which causes fibrotic tissue deposition and is thought to inhibit de novo myofiber regeneration despite observed improvements in functional outcomes (i.e., functional fibrosis; FF). Recent approaches have sought to attenuate inflammation and/or fibrosis as a means to create a permissive environment for regenerative therapies. However, there are currently no clinically available interventions capable of facilitating full restoration of form and function following VML injury; thus, an unmet clinical need exists for a near-term interventional strategy to treat affected patients. FF could serve as an alternative approach to facilitate improved functional outcomes following VML injuries. We sought to investigate whether intentionally exploiting the concept of FF (i.e., induction of a supraphysiological fibrotic response via the delivery of a polypropylene mesh combined with TGFβ) would enhance the function of the VML affected musculature. We found that FF treatment induces enhanced fibrotic tissue deposition within the VML defect as evidenced by histological and molecular analysis. FF-treated animals exhibit improved in vivo muscle function compared to untreated control animals at 8 weeks post-injury, thus substantiating the concept that FF could serve as an efficacious approach for facilitating improved functional outcomes following VML injury. STATEMENT OF SIGNIFICANCE: VML injuries result in long-term functional impairments and reduced quality of life for affected individuals, namely combat injured US Service members, and no clinical interventions can restore the form and function of the injured limb. Extensive efforts have been aimed at developing therapeutics to address this critical gap; unfortunately, most interventions facilitate only modest regeneration. Interestingly, improved muscle function has been observed in VML studies following treatment with a therapeutic, despite a lack of myogenic tissue formation; a phenomenon termed Functional Fibrosis (FF). Herein we exploited the concept of FF to enhance the function of VML affected musculature. This finding is significant in that the commercially available interventions used to induce FF can be translated into the clinic near-term, thus improving the standard of care for VML injuries.
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14
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Hu C, Ayan B, Chiang G, Chan AHP, Rando TA, Huang NF. Comparative Effects of Basic Fibroblast Growth Factor Delivery or Voluntary Exercise on Muscle Regeneration after Volumetric Muscle Loss. Bioengineering (Basel) 2022; 9:37. [PMID: 35049746 PMCID: PMC8773127 DOI: 10.3390/bioengineering9010037] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/05/2022] [Accepted: 01/11/2022] [Indexed: 12/29/2022] Open
Abstract
Volumetric muscle loss (VML) is associated with irreversibly impaired muscle function due to traumatic injury. Experimental approaches to treat VML include the delivery of basic fibroblast growth factor (bFGF) or rehabilitative exercise. The objective of this study was to compare the effects of spatially nanopatterned collagen scaffold implants with either bFGF delivery or in conjunction with voluntary exercise. Aligned nanofibrillar collagen scaffold bundles were adsorbed with bFGF, and the bioactivity of bFGF-laden scaffolds was examined by skeletal myoblast or endothelial cell proliferation. The therapeutic efficacy of scaffold implants with either bFGF release or exercise was examined in a murine VML model. Our results show an initial burst release of bFGF from the scaffolds, followed by a slower release over 21 days. The released bFGF induced myoblast and endothelial cell proliferation in vitro. After 3 weeks of implantation in a mouse VML model, twitch force generation was significantly higher in mice treated with bFGF-laden scaffolds compared to bFGF-laden scaffolds with exercise. However, myofiber density was not significantly improved with bFGF scaffolds or voluntary exercise. In contrast, the scaffold implant with exercise induced more re-innervation than all other groups. These results highlight the differential effects of bFGF and exercise on muscle regeneration.
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Affiliation(s)
- Caroline Hu
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304, USA; (C.H.); (G.C.); (A.H.P.C.); (T.A.R.)
| | - Bugra Ayan
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA 94305, USA;
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA
| | - Gladys Chiang
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304, USA; (C.H.); (G.C.); (A.H.P.C.); (T.A.R.)
| | - Alex H. P. Chan
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304, USA; (C.H.); (G.C.); (A.H.P.C.); (T.A.R.)
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA 94305, USA;
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA
| | - Thomas A. Rando
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304, USA; (C.H.); (G.C.); (A.H.P.C.); (T.A.R.)
- Department of Neurology, Stanford University, Stanford, CA 94305, USA
| | - Ngan F. Huang
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304, USA; (C.H.); (G.C.); (A.H.P.C.); (T.A.R.)
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA 94305, USA;
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
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15
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Ziemkiewicz N, Hilliard GM, Dunn AJ, Madsen J, Haas G, Au J, Genovese PC, Chauvin HM, West C, Paoli A, Garg K. Laminin-111-Enriched Fibrin Hydrogels Enhance Functional Muscle Regeneration Following Trauma. Tissue Eng Part A 2022; 28:297-311. [PMID: 34409846 DOI: 10.1089/ten.tea.2021.0096] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Volumetric muscle loss (VML) is the surgical or traumatic loss of skeletal muscle, which can cause loss of limb function or permanent disability. VML injuries overwhelms the endogenous regenerative capacity of skeletal muscle and results in poor functional healing outcomes. Currently, there are no approved tissue engineering treatments for VML injuries. In this study, fibrin hydrogels enriched with laminin-111 (LM-111; 50-450 μg/mL) were used for the treatment of VML of the tibialis anterior in a rat model. Treatment with fibrin hydrogel containing 450 μg/mL of LM-111 (FBN450) improved muscle regeneration following VML injury. FBN450 hydrogel treatment increased the relative proportion of contractile to fibrotic tissue as indicated by the myosin: collagen ratio on day 28 post-VML injury. FBN450 hydrogels also enhanced myogenic protein expression and increased the quantity of small to medium size myofibers (500-2000 μm2) as well as innervated myofibers. Improved contractile tissue deposition due to FBN450 hydrogel treatment resulted in a significant improvement (∼60%) in torque production at day 28 postinjury. Taken together, these results suggest that the acellular FBN450 hydrogels provide a promising therapeutic strategy for VML that is worthy of further investigation.
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Affiliation(s)
- Natalia Ziemkiewicz
- Department of Biomedical Engineering, Parks College of Engineering, Aviation and Technology, Saint Louis University, St. Louis, Missouri, USA
| | - Genevieve M Hilliard
- Department of Biomedical Engineering, Parks College of Engineering, Aviation and Technology, Saint Louis University, St. Louis, Missouri, USA
| | - Andrew J Dunn
- Department of Biomedical Engineering, Parks College of Engineering, Aviation and Technology, Saint Louis University, St. Louis, Missouri, USA
| | - Josh Madsen
- Department of Biomedical Engineering, Parks College of Engineering, Aviation and Technology, Saint Louis University, St. Louis, Missouri, USA
| | - Gabriel Haas
- Department of Biomedical Engineering, Parks College of Engineering, Aviation and Technology, Saint Louis University, St. Louis, Missouri, USA
| | - Jeffrey Au
- Department of Biomedical Engineering, Parks College of Engineering, Aviation and Technology, Saint Louis University, St. Louis, Missouri, USA
| | - Peter C Genovese
- Department of Biomedical Engineering, Parks College of Engineering, Aviation and Technology, Saint Louis University, St. Louis, Missouri, USA
| | - Hannah M Chauvin
- Department of Biomedical Engineering, Parks College of Engineering, Aviation and Technology, Saint Louis University, St. Louis, Missouri, USA
| | - Charles West
- Department of Biomedical Engineering, Parks College of Engineering, Aviation and Technology, Saint Louis University, St. Louis, Missouri, USA
| | - Allison Paoli
- Department of Biomedical Engineering, Parks College of Engineering, Aviation and Technology, Saint Louis University, St. Louis, Missouri, USA
| | - Koyal Garg
- Department of Biomedical Engineering, Parks College of Engineering, Aviation and Technology, Saint Louis University, St. Louis, Missouri, USA
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16
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Ritter P, Cai A, Reischl B, Fiedler M, Prol G, Frie B, Kretzschmar E, Michael M, Hartmann K, Lesko C, Salti H, Arkudas A, Horch R, Paulsen F, Friedrich O, Haug M. MyoBio: An automated bioreactor system technology for standardized perfusion-decellularization of whole skeletal muscle. IEEE Trans Biomed Eng 2022; 69:2305-2313. [DOI: 10.1109/tbme.2022.3142317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Rodriguez BL, Novakova SS, Vega-Soto EE, Nutter GP, Macpherson PCD, Larkin LM. Repairing Volumetric Muscle Loss in the Ovine Peroneus Tertius Following a 6-Month Recovery. Tissue Eng Part A 2021; 28:606-620. [PMID: 34937425 DOI: 10.1089/ten.tea.2021.0187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Tissue-engineered skeletal muscle is a promising novel therapy for the treatment of volumetric muscle loss (VML). Our laboratory has developed tissue-engineered skeletal muscle units (SMUs) and engineered neural conduits (ENCs), and modularly scaled them to clinically relevant sizes for the treatment of VML in a large animal (sheep) model. In a previous study, we evaluated the effects of the SMUs and ENCs in treating a 30% VML injury in the ovine peroneus tertius muscle after a 3-month recovery period. The goal of the current study was to expand on our 3-month study and evaluate the SMUs and ENCs in restoring muscle function after a 6-month recovery period. Six months after implantation, we found that the repair groups with the SMU (VML+SMU and VML+SMU+ENC) restored muscle mass to a level that was statistically indistinguishable from the uninjured contralateral muscle. In contrast, the muscle mass in the VML-Only group was significantly less than groups repaired with an SMU. Following the 6-month recovery from VML, the maximum tetanic force was significantly lower for all VML injured groups compared to the uninjured contralateral muscle. However, we did demonstrate the ability of our ENCs to effectively regenerate nerve between the distal stump of the native nerve and the repair site in 93% of the animals.
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Affiliation(s)
- Brittany Lynn Rodriguez
- University of Michigan, Biomedical Engineering, BSRB 2328, 109 Zina Pitcher Pl, Ann Arbor, Michigan, United States, 48109;
| | | | | | | | | | - Lisa Marie Larkin
- University of Michian, Physiology, 109 Zina Pitcher Place, 2025 BSRB, Ann Arbor, Michigan, United States, 48109;
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18
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Haas G, Dunn A, Madsen J, Genovese P, Chauvin H, Au J, Ziemkiewicz N, Johnson D, Paoli A, Lin A, Pullen N, Garg K. Biomimetic sponges improve muscle structure and function following volumetric muscle loss. J Biomed Mater Res A 2021; 109:2280-2293. [PMID: 33960118 PMCID: PMC9838030 DOI: 10.1002/jbm.a.37212] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/15/2021] [Accepted: 04/23/2021] [Indexed: 01/17/2023]
Abstract
Skeletal muscle is inept in regenerating after traumatic injuries such as volumetric muscle loss (VML) due to significant loss of various cellular and acellular components. Currently, there are no approved therapies for the treatment of muscle tissue following trauma. In this study, biomimetic sponges composed of gelatin, collagen, laminin-111, and FK-506 were used for the treatment of VML in a rodent model. We observed that biomimetic sponge treatment improved muscle structure and function while modulating inflammation and limiting the extent of fibrotic tissue deposition. Specifically, sponge treatment increased the total number of myofibers, type 2B fiber cross-sectional area, myosin: collagen ratio, myofibers with central nuclei, and peak isometric torque compared to untreated VML injured muscles. As an acellular scaffold, biomimetic sponges may provide a promising clinical therapy for VML.
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Affiliation(s)
- Gabriel Haas
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, Missouri
| | - Andrew Dunn
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, Missouri
| | - Josh Madsen
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, Missouri
| | - Peter Genovese
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, Missouri
| | - Hannah Chauvin
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, Missouri
| | - Jeffrey Au
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, Missouri
| | - Natalia Ziemkiewicz
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, Missouri
| | - David Johnson
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, Missouri
| | - Allison Paoli
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, Missouri
| | - Andrew Lin
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, Missouri
| | - Nicholas Pullen
- School of Biological Sciences, College of Natural and Health Sciences, University of Northern Colorado, Greeley, Colorado
| | - Koyal Garg
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, Missouri
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19
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Wroblewski OM, Nguyen MH, Cederna P, Larkin LM. Impact of Cell-Seeding Density and Cell Confluence on Human Tissue Engineered Skeletal Muscle. Tissue Eng Part A 2021; 28:420-432. [PMID: 34652973 PMCID: PMC9131361 DOI: 10.1089/ten.tea.2021.0132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Tissue engineering methodologies have the potential to treat volumetric muscle loss (VML) via the growth of exogenous skeletal muscle grafts from small autogenous muscle biopsies. A significant obstacle preventing the widespread use of engineered skeletal muscle grafts in a clinical setting is the high number of skeletal muscle stem cells, known as satellite cells, required for fabrication of human-sized skeletal muscle tissue. Additionally, there is a lack of work adapting engineered constructs created for animal models into skeletal muscle engineered from a primary human skeletal muscle cell source. For this study, we used scaffold-free tissue-engineered skeletal muscle units (SMUs) to determine the impact of cell seeding density on the ability to fabricate functional human engineered skeletal muscle. Following established protocols, human skeletal muscle isolates were cultured into SMUs at five different cell-seeding densities: 1,000 cells/cm2, 2,500 cells/cm2, 5,000 cells/cm2, 10,000 cells/cm2, and 25,000 cells/cm2. Following previous human SMU work, SMUs prepared at a cell seeding density of 10,000 cells/cm2 served as controls. Additionally, the impact of cell monolayer confluency on the outcome of human cell-sourced SMU fabrication was investigated at both the 1,000 cells/cm2 and 10,000 cells/cm2 seeding densities. Light microscopy was used to examine myotube formation and hypertrophy in cell monolayers. After the formation of three-dimensional constructs, SMUs underwent maximum tetanic isometric force production measurements and immunohistochemical staining to examine SMU contractile function and muscle-like structure, respectively. Results indicate that the 25,000 cells/cm2 cell-seeding density was detrimental to the contractile function of human cell-sourced SMUs, which had significantly lower maximum tetanic forces compared to SMUs seeded at lower densities. Compared to control, low cell-seeding densities (1,000 cells/cm2 - 5,000 cells/cm2) have no detrimental impact on SMU skeletal muscle growth, maturation, or contractility. Cell cultures seeded at 1,000 cells/cm2 and allowed to proliferate to 90-100% confluency prior to treatment in muscle differentiation media (MDM) resulted in SMUs with greater contractile forces and total muscle-structure compared to cell cultures switched to MDM when underconfluent or overconfluent. In conclusion, initial cell-seeding density for SMU fabrication can be decreased to as low as 1,000 cells/cm2 without negatively impacting SMU muscle-like structure and function.
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Affiliation(s)
- Olga Maria Wroblewski
- University of Michigan Department of Biomedical Engineering, 505527, Ann Arbor, Michigan, United States;
| | - Matthew Hung Nguyen
- University of Michigan Department of Molecular and Integrative Physiology, 200746, Ann Arbor, Michigan, United States;
| | - Paul Cederna
- University of Michigan Medical School, 12266, Surgery, Ann Arbor, Michigan, United States;
| | - Lisa Marie Larkin
- University of Michigan Department of Molecular and Integrative Physiology, 200746, Ann Arbor, Michigan, United States;
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20
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Basurto IM, Passipieri JA, Gardner GM, Smith KK, Amacher AR, Hansrisuk AI, Christ GJ, Caliari SR. Photoreactive hydrogel stiffness influences volumetric muscle loss repair. Tissue Eng Part A 2021; 28:312-329. [PMID: 34409861 DOI: 10.1089/ten.tea.2021.0137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Volumetric muscle loss (VML) injuries are characterized by permanent loss of muscle mass, structure, and function. Hydrogel biomaterials provide an attractive platform for skeletal muscle tissue engineering due to the ability to easily modulate their biophysical and biochemical properties to match a range of tissue characteristics. In this work we successfully developed a mechanically tunable hyaluronic acid (HA) hydrogel system to investigate the influence of hydrogel stiffness on VML repair. HA was functionalized with photoreactive norbornene groups to create hydrogel networks that rapidly crosslink via thiol-ene click chemistry with tailored mechanics. Mechanical properties were controlled by modulating the amount of matrix metalloproteinase (MMP)-degradable peptide crosslinker to produce hydrogels with increasing elastic moduli of 1.1 ± 0.002, 3.0 ± 0.002, and 10.6 ± 0.006 kPa mimicking a relevant range of developing and mature muscle stiffnesses. Functional muscle recovery was assessed following implantation of the HA hydrogels by in situ photopolymerization into rat latissimus dorsi (LD) VML defects at 12 and 24 weeks post-injury. After 12 weeks, muscles treated with medium stiffness (3.0 kPa) hydrogels produced maximum isometric forces most similar to contralateral healthy LD muscles. This trend persisted at 24 weeks post-injury, suggestive of sustained functional recovery. Histological analysis revealed a significantly larger zone of regeneration with more de novo muscle fibers following implantation of medium stiffness hydrogels in VML-injured muscles compared to other experimental groups. Lower (low and medium) stiffness hydrogels also appeared to attenuate the chronic inflammatory response characteristic of VML injuries, displaying similar levels of macrophage infiltration and polarization to healthy muscle. Together these findings illustrate the importance of hydrogel mechanical properties in supporting functional repair of VML injuries.
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Affiliation(s)
- Ivan M Basurto
- University of Virginia, 2358, Biomedical Engineering, Charlottesville, Virginia, United States;
| | - Juliana A Passipieri
- University of Virginia, 2358, Biomedical Engineering, Orthopaedic Surgery, Charlottesville, Virginia, United States;
| | - Gregg M Gardner
- University of Virginia, 2358, Chemical Engineering, Charlottesville, Virginia, United States;
| | - Kathryn K Smith
- University of Virginia, 2358, Chemical Engineering, Charlottesville, Virginia, United States;
| | - Austin R Amacher
- University of Virginia, 2358, Biomedical Engineering, Charlottesville, Virginia, United States;
| | - Audrey I Hansrisuk
- University of Virginia, 2358, Chemistry, Charlottesville, Virginia, United States;
| | - George J Christ
- University of Virginia, 2358, Biomedical Engineering, Orthopaedic Surgery, Charlottesville, Virginia, United States;
| | - Steven R Caliari
- University of Virginia, 2358, Chemical Engineering, Biomedical Engineering, Charlottesville, Virginia, United States;
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21
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Lim D, Renteria ES, Sime DS, Ju YM, Kim JH, Criswell T, Shupe TD, Atala A, Marini FC, Gurcan MN, Soker S, Hunsberger J, Yoo JJ. Bioreactor design and validation for manufacturing strategies in tissue engineering. Biodes Manuf 2021; 5:43-63. [PMID: 35223131 PMCID: PMC8870603 DOI: 10.1007/s42242-021-00154-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The fields of regenerative medicine and tissue engineering offer new therapeutic options to restore, maintain or improve tissue function following disease or injury. To maximize the biological function of a tissue-engineered clinical product, specific conditions must be maintained within a bioreactor to allow the maturation of the product in preparation for implantation. Specifically, the bioreactor should be designed to mimic the mechanical, electrochemical and biochemical environment that the product will be exposed to in vivo. Real-time monitoring of the functional capacity of tissue-engineered products during manufacturing is a critical component of the quality management process. The present review provides a brief overview of bioreactor engineering considerations. In addition, strategies for bioreactor automation, in-line product monitoring and quality assurance are discussed.
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Affiliation(s)
- Diana Lim
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Eric S. Renteria
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Drake S. Sime
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Young Min Ju
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Ji Hyun Kim
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Tracy Criswell
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Thomas D. Shupe
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Anthony Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Frank C. Marini
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Metin N. Gurcan
- Center for Biomedical Informatics, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Shay Soker
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Joshua Hunsberger
- RegenMed Development Organization (ReMDO), Winston Salem, NC 27106, USA
| | - James J. Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
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22
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Alarcin E, Bal-Öztürk A, Avci H, Ghorbanpoor H, Dogan Guzel F, Akpek A, Yesiltas G, Canak-Ipek T, Avci-Adali M. Current Strategies for the Regeneration of Skeletal Muscle Tissue. Int J Mol Sci 2021; 22:5929. [PMID: 34072959 PMCID: PMC8198586 DOI: 10.3390/ijms22115929] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/21/2021] [Accepted: 05/26/2021] [Indexed: 12/11/2022] Open
Abstract
Traumatic injuries, tumor resections, and degenerative diseases can damage skeletal muscle and lead to functional impairment and severe disability. Skeletal muscle regeneration is a complex process that depends on various cell types, signaling molecules, architectural cues, and physicochemical properties to be successful. To promote muscle repair and regeneration, various strategies for skeletal muscle tissue engineering have been developed in the last decades. However, there is still a high demand for the development of new methods and materials that promote skeletal muscle repair and functional regeneration to bring approaches closer to therapies in the clinic that structurally and functionally repair muscle. The combination of stem cells, biomaterials, and biomolecules is used to induce skeletal muscle regeneration. In this review, we provide an overview of different cell types used to treat skeletal muscle injury, highlight current strategies in biomaterial-based approaches, the importance of topography for the successful creation of functional striated muscle fibers, and discuss novel methods for muscle regeneration and challenges for their future clinical implementation.
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Affiliation(s)
- Emine Alarcin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Marmara University, 34854 Istanbul, Turkey;
| | - Ayca Bal-Öztürk
- Department of Analytical Chemistry, Faculty of Pharmacy, Istinye University, 34010 Istanbul, Turkey;
- Department of Stem Cell and Tissue Engineering, Institute of Health Sciences, Istinye University, 34010 Istanbul, Turkey
| | - Hüseyin Avci
- Department of Metallurgical and Materials Engineering, Eskisehir Osmangazi University, 26040 Eskisehir, Turkey;
- Cellular Therapy and Stem Cell Research Center, Eskisehir Osmangazi University, 26040 Eskisehir, Turkey
- AvciBio Research Group, Eskisehir Osmangazi University, 26040 Eskisehir, Turkey;
- Translational Medicine Research and Clinical Center, Eskisehir Osmangazi University, 26040 Eskisehir, Turkey
| | - Hamed Ghorbanpoor
- AvciBio Research Group, Eskisehir Osmangazi University, 26040 Eskisehir, Turkey;
- Department of Biomedical Engineering, Ankara Yildirim Beyazit University, 06010 Ankara, Turkey;
- Department of Biomedical Engineering, Eskisehir Osmangazi University, 26040 Eskisehir, Turkey
| | - Fatma Dogan Guzel
- Department of Biomedical Engineering, Ankara Yildirim Beyazit University, 06010 Ankara, Turkey;
| | - Ali Akpek
- Department of Bioengineering, Gebze Technical University, 41400 Gebze, Turkey; (A.A.); (G.Y.)
| | - Gözde Yesiltas
- Department of Bioengineering, Gebze Technical University, 41400 Gebze, Turkey; (A.A.); (G.Y.)
| | - Tuba Canak-Ipek
- Department of Thoracic and Cardiovascular Surgery, University Hospital Tuebingen, Calwerstraße 7/1, 72076 Tuebingen, Germany;
| | - Meltem Avci-Adali
- Department of Thoracic and Cardiovascular Surgery, University Hospital Tuebingen, Calwerstraße 7/1, 72076 Tuebingen, Germany;
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23
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Carleton MM, Locke M, Sefton MV. Methacrylic acid-based hydrogels enhance skeletal muscle regeneration after volumetric muscle loss in mice. Biomaterials 2021; 275:120909. [PMID: 34087582 DOI: 10.1016/j.biomaterials.2021.120909] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 12/29/2022]
Abstract
Volumetric muscle loss (VML) impairs the regenerative ability of skeletal muscle resulting in scar tissue formation and loss of function. Current treatments are of limited efficacy as they do not fully restore function, i.e., force generation. Regenerative biomaterials, such as those containing methacrylic-acid (MAA), are proposed as a novel approach to enhancing muscle regeneration without added cells, growth factors or drugs. Here, the regenerative effects of two hydrogels were investigated: MAA-poly(ethylene glycol) (MAA-PEG) and MAA-collagen. These hydrogels were used to treat VML injuries in murine tibialis anterior muscles. The MAA-collagen hydrogel significantly increased regenerating muscle fiber size and muscle force production. While both hydrogels increased vascularization, only the MAA-collagen hydrogel increased apparent muscle innervation. The MAA-collagen hydrogel also significantly reduced a pro-inflammatory macrophage (MHCII+CD206-) population. Furthermore, the hydrogels had distinct gene expression profiles indicating that their regenerative abilities were carrier dependent. Overall, this study suggests MAA-collagen as a cell-free and drug-free approach to enhancing skeletal muscle regeneration after traumatic injury.
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Affiliation(s)
- Miranda M Carleton
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON, M5S 3G9, Canada
| | - Marius Locke
- Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, ON, M5S 3G9, Canada
| | - Michael V Sefton
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON, M5S 3G9, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, M5S 3G9, Canada.
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24
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Dienes J, Browne S, Farjun B, Amaral Passipieri J, Mintz EL, Killian G, Healy KE, Christ GJ. Semisynthetic Hyaluronic Acid-Based Hydrogel Promotes Recovery of the Injured Tibialis Anterior Skeletal Muscle Form and Function. ACS Biomater Sci Eng 2021; 7:1587-1599. [PMID: 33660968 DOI: 10.1021/acsbiomaterials.0c01751] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Volumetric muscle loss (VML) injuries are characterized by a degree of tissue loss that exceeds the endogenous regenerative capacity of muscle, resulting in permanent structural and functional deficits. Such injuries are a consequence of trauma, as well as a host of congenital and acquired diseases and disorders. Despite significant preclinical research with diverse biomaterials, as well as early clinical studies with implantation of decellularized extracellular matrices, there are still significant barriers to more complete restoration of muscle form and function following repair of VML injuries. In fact, identification of novel biomaterials with more advantageous regenerative profiles is a critical limitation to the development of improved therapeutics. As a first step in this direction, we evaluated a novel semisynthetic hyaluronic acid-based (HyA) hydrogel that embodies material features more favorable for robust muscle regeneration. This HyA-based hydrogel is composed of an acrylate-modified HyA (AcHyA) macromer, an AcHyA macromer conjugated with the bsp-RGD(15) peptide sequence to enhance cell adhesion, a high-molecular-weight heparin to sequester growth factors, and a matrix metalloproteinase-cleavable cross-linker to allow for cell-dependent remodeling. In a well-established, clinically relevant rat tibialis anterior VML injury model, we report observations of robust functional recovery, accompanied by volume reconstitution, muscle regeneration, and native-like vascularization following implantation of the HyA-based hydrogel at the site of injury. These findings have important implications for the development and clinical application of the improved biomaterials that will be required for stable and complete functional recovery from diverse VML injuries.
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Affiliation(s)
- Jack Dienes
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, United States
| | - Shane Browne
- Department of Bioengineering, University of California, Berkeley, Berkeley, California 94720, United States.,Department of Material Science and Engineering, University of California, Berkeley, Berkeley 94720, United States
| | - Bruna Farjun
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, United States
| | - Juliana Amaral Passipieri
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, United States
| | - Ellen L Mintz
- Pathology Department, University of Virginia, Charlottesville, Virginia 22908, United States
| | - Grant Killian
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, United States
| | - Kevin E Healy
- Department of Bioengineering, University of California, Berkeley, Berkeley, California 94720, United States.,Department of Material Science and Engineering, University of California, Berkeley, Berkeley 94720, United States
| | - George J Christ
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, United States.,Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia 22908, United States
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25
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Izadi MR, Habibi A, Khodabandeh Z, Nikbakht M. Synergistic effect of high-intensity interval training and stem cell transplantation with amniotic membrane scaffold on repair and rehabilitation after volumetric muscle loss injury. Cell Tissue Res 2021; 383:765-779. [PMID: 33128624 DOI: 10.1007/s00441-020-03304-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 09/14/2020] [Indexed: 10/23/2022]
Abstract
Despite the high regenerative capacity of skeletal muscle, volumetric muscle loss (VML) is an irrecoverable injury. One therapeutic approach is the implantation of engineered biologic scaffolds enriched with stem cells. The objective of this study is to investigate the synergistic effect of high-intensity interval training (HIIT) and stem cell transplantation with an amniotic membrane scaffold on innervation, vascularization and muscle function after VML injury. A VML injury was surgically created in the tibialis anterior (TA) muscle in rats. The animals were randomly assigned to three groups: untreated negative control group (untreated), decellularized human amniotic membrane bio-scaffold group (dHAM) and dHAM seeded with adipose-derived stem cells, which differentiate into skeletal muscle cells (dHAM-ADSCs). Then, each group was divided into sedentary and HIIT subgroups. The exercise training protocol consisted of treadmill running for 8 weeks. The animals underwent in vivo functional muscle tests to evaluate maximal isometric contractile force. Regenerated TA muscles were harvested for molecular analyses and explanted tissues were analyzed with histological methods. The main finding was that HIIT promoted muscle regeneration, innervation and vascularization in regenerated areas in HIIT treatment subgroups, especially in the dHAM-ADSC subgroup. In parallel with innervation, maximal isometric force also increased in vivo. HIIT upregulated neurotrophic factor gene expression in skeletal muscle. The amniotic membrane bio-scaffold seeded with differentiated ADSC, in conjunction with exercise training, improved vascular perfusion and innervation and enhanced the functional and morphological healing process after VML injury. The implications of these findings are of potential importance for future efforts to develop engineered biological scaffolds and for the use of interval training programs in rehabilitation after VML injury.
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Affiliation(s)
- Mohammad Reza Izadi
- Faculty of Physical Education and Sport Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Abdolhamid Habibi
- Faculty of Physical Education and Sport Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Zahra Khodabandeh
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Masood Nikbakht
- Faculty of Physical Education and Sport Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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26
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Awad K, Ahuja N, Fiedler M, Peper S, Wang Z, Aswath P, Brotto M, Varanasi V. Ionic Silicon Protects Oxidative Damage and Promotes Skeletal Muscle Cell Regeneration. Int J Mol Sci 2021; 22:E497. [PMID: 33419056 PMCID: PMC7825403 DOI: 10.3390/ijms22020497] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 12/28/2020] [Accepted: 12/30/2020] [Indexed: 12/20/2022] Open
Abstract
Volumetric muscle loss injuries overwhelm the endogenous regenerative capacity of skeletal muscle, and the associated oxidative damage can delay regeneration and prolong recovery. This study aimed to investigate the effect of silicon-ions on C2C12 skeletal muscle cells under normal and excessive oxidative stress conditions to gain insights into its role on myogenesis during the early stages of muscle regeneration. In vitro studies indicated that 0.1 mM Si-ions into cell culture media significantly increased cell viability, proliferation, migration, and myotube formation compared to control. Additionally, MyoG, MyoD, Neurturin, and GABA expression were significantly increased with addition of 0.1, 0.5, and 1.0 mM of Si-ion for 1 and 5 days of C2C12 myoblast differentiation. Furthermore, 0.1-2.0 mM Si-ions attenuated the toxic effects of H2O2 within 24 h resulting in increased cell viability and differentiation. Addition of 1.0 mM of Si-ions significantly aid cell recovery and protected from the toxic effect of 0.4 mM H2O2 on cell migration. These results suggest that ionic silicon may have a potential effect in unfavorable situations where reactive oxygen species is predominant affecting cell viability, proliferation, migration, and differentiation. Furthermore, this study provides a guide for designing Si-containing biomaterials with desirable Si-ion release for skeletal muscle regeneration.
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Affiliation(s)
- Kamal Awad
- Department of Materials Science and Engineering, College of Engineering, University of Texas at Arlington, Arlington, TX 76019, USA; (K.A.); (P.A.)
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington, Arlington, TX 76019, USA; (N.A.); (M.F.); (S.P.); (Z.W.)
| | - Neelam Ahuja
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington, Arlington, TX 76019, USA; (N.A.); (M.F.); (S.P.); (Z.W.)
| | - Matthew Fiedler
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington, Arlington, TX 76019, USA; (N.A.); (M.F.); (S.P.); (Z.W.)
| | - Sara Peper
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington, Arlington, TX 76019, USA; (N.A.); (M.F.); (S.P.); (Z.W.)
- Department of Bioengineering, College of Engineering, University of Texas at Arlington, Arlington, TX 76019, USA
| | - Zhiying Wang
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington, Arlington, TX 76019, USA; (N.A.); (M.F.); (S.P.); (Z.W.)
| | - Pranesh Aswath
- Department of Materials Science and Engineering, College of Engineering, University of Texas at Arlington, Arlington, TX 76019, USA; (K.A.); (P.A.)
| | - Marco Brotto
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington, Arlington, TX 76019, USA; (N.A.); (M.F.); (S.P.); (Z.W.)
| | - Venu Varanasi
- Department of Materials Science and Engineering, College of Engineering, University of Texas at Arlington, Arlington, TX 76019, USA; (K.A.); (P.A.)
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington, Arlington, TX 76019, USA; (N.A.); (M.F.); (S.P.); (Z.W.)
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27
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Izadi MR, Habibi A, Khodabandeh Z, Nikbakht M. Simultaneous Effects of High Intensity Interval Training and Human Amniotic Membrane Scaffold on Rat Tibialis Anterior Vascularization and Innervation after Volumetric Muscle Loss Injury. Int J Organ Transplant Med 2021; 12:33-43. [PMID: 34987731 PMCID: PMC8717877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023] Open
Abstract
BACKGROUND Despite the high regenerative capacity of skeletal muscle, volumetric muscle loss (VML) is an irrecoverable injury. One therapeutic approach is the implantation of engineered biologic scaffolds. OBJECTIVE To investigate the simultaneous effect of high intensity interval training (HIIT) and the use of decellularized human amniotic membrane (dHAM) scaffolds on vascularization, growth factor, and neurotrophic factor gene expression, and muscle force generation in the tibialis anterior (TA) of rats after VML injury. METHODS VML injury was created in the TA of 24 rats, which were randomly divided into two groups-12 animals with and 12 without the use of a dHAM scaffold. After injury, each group was further divided into two groups of 6 animals each-sedentary and HIIT. Blood vessels were visualized and counted by hematoxylin and eosin staining. The PowerLab converter assay was used to evaluate isometric contraction force. The relative expression of neurotrophic factors and growth factor genes was measured with reverse transcription PCR (RT-PCR). RESULTS The number of blood vessels in the whole regenerating areas showed a significant difference in the dHAM-HIIT and dHAM-sedentary groups compared to the sedentary group without dHAM (p=0.001 and p=0.003, respectively). BDNF and GDNF mRNA levels in the dHAM-HIIT group were significantly (p<0.05) higher than those in other groups; NGF mRNA levels did not differ significantly among groups. Isometric contraction force in the dHAM-HIIT group was significantly (p=0.001) greater compared to the sedentary group without dHAM. CONCLUSION Combined use of dHAM scaffoldsand HIIT would improve the structure of the injured muscle during regeneration after VML by better vascular perfusion. HIIT leads to greater force generation and innervation by modulating neurotrophic factor synthesis in regenerating muscles.
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Affiliation(s)
- M. R. Izadi
- Department of Exercise Physiology, Faculty of Physical Education and Exercise Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - A. Habibi
- Department of Exercise Physiology, Faculty of Physical Education and Exercise Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Z. Khodabandeh
- Stem Cell Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M. Nikbakht
- Stem Cell Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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28
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Camacho-Alonso F, García-Carrillo N, Buendía AJ, Navarro JA, Peñarrocha-Oltra D, Peñarrocha-Diago M, Lacal-Luján J. Regeneration of lingual musculature in rats using myoblasts over porcine bladder acellular matrix. Oral Dis 2020; 27:1580-1589. [PMID: 33031620 DOI: 10.1111/odi.13674] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 09/02/2020] [Accepted: 10/01/2020] [Indexed: 01/19/2023]
Abstract
OBJECTIVES To use tissue engineering muscle repair (TEMR) for regenerating the lingual musculature of hemiglossectomized rats using neonatal myoblasts (NM) on porcine acellular urinary bladder matrix (AUBM). MATERIAL AND METHODS The study used 80 male rats. A volumetric muscle loss (VML) injury was created on the left side of the tongue. The rats were randomized into four groups: Group 1 (AUBM + myoblasts); Group 2 (AUBM); Group 3 (myoblasts); and Group 4 (control). NM were obtained from neonatal rats. The animals were weighed on day 0 and just before euthanasia. Five rats in each group were euthanized at days 2, 14, 28, and 42; the tongues were prepared for morphometric analysis, postoperative left hemitongue weight, and immunohistochemical analysis (desmin, CD-31, and anti-neurofilament). RESULTS The weight gain from greatest to least was as follows: AUBM + myoblasts > myoblasts > AUBM > control. The tongue dorsum occupied by VML, and difference in mg between control side and intervened side from least to great was as follows: AUBM + myoblasts < myoblasts < AUBM < control. The order from highest to lowest antibody positivity was as follows: AUBM + myoblasts > myoblasts > AUBM > control. CONCLUSION The use of porcine AUBM and NM for the regeneration of lingual musculature was found to be an effective TEMR treatment for repairing tongue VML injury.
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Affiliation(s)
| | | | | | - Jose Antonio Navarro
- Department of Histology and Pathology Anatomy, University of Murcia, Murcia, Spain
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29
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Skeletal Muscle Tissue Engineering: Biomaterials-Based Strategies for the Treatment of Volumetric Muscle Loss. Bioengineering (Basel) 2020; 7:bioengineering7030085. [PMID: 32751847 PMCID: PMC7552659 DOI: 10.3390/bioengineering7030085] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/17/2020] [Accepted: 07/28/2020] [Indexed: 12/13/2022] Open
Abstract
Millions of Americans suffer from skeletal muscle injuries annually that can result in volumetric muscle loss (VML), where extensive musculoskeletal damage and tissue loss result in permanent functional deficits. In the case of small-scale injury skeletal muscle is capable of endogenous regeneration through activation of resident satellite cells (SCs). However, this is greatly reduced in VML injuries, which remove native biophysical and biochemical signaling cues and hinder the damaged tissue's ability to direct regeneration. The current clinical treatment for VML is autologous tissue transfer, but graft failure and scar tissue formation leave patients with limited functional recovery. Tissue engineering of instructive biomaterial scaffolds offers a promising approach for treating VML injuries. Herein, we review the strategic engineering of biophysical and biochemical cues in current scaffold designs that aid in restoring function to these preclinical VML injuries. We also discuss the successes and limitations of the three main biomaterial-based strategies to treat VML injuries: acellular scaffolds, cell-delivery scaffolds, and in vitro tissue engineered constructs. Finally, we examine several innovative approaches to enhancing the design of the next generation of engineered scaffolds to improve the functional regeneration of skeletal muscle following VML injuries.
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30
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Sicherer ST, Venkatarama RS, Grasman JM. Recent Trends in Injury Models to Study Skeletal Muscle Regeneration and Repair. Bioengineering (Basel) 2020; 7:bioengineering7030076. [PMID: 32698352 PMCID: PMC7552705 DOI: 10.3390/bioengineering7030076] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/14/2020] [Accepted: 07/18/2020] [Indexed: 12/22/2022] Open
Abstract
Skeletal muscle injuries that occur from traumatic incidents, such as those caused by car accidents or surgical resections, or from injuries sustained on the battlefield, result in the loss of functionality of the injured muscle. To understand skeletal muscle regeneration and to better treat these large scale injuries, termed volumetric muscle loss (VML), in vivo injury models exploring the innate mechanisms of muscle injury and repair are essential for the creation of clinically applicable treatments. While the end result of a muscle injury is often the destruction of muscle tissue, the manner in which these injuries are induced as well as the response from the innate repair mechanisms found in muscle in each animal models can vary. This targeted review describes injury models that assess both skeletal muscle regeneration (i.e., the response of muscle to myotoxin or ischemic injury) and skeletal muscle repair (i.e., VML injury). We aimed to summarize the injury models used in the field of skeletal muscle tissue engineering, paying particular attention to strategies to induce muscle damage and how to standardize injury conditions for future experiments.
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31
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Bour RK, Sharma PR, Turner JS, Hess WE, Mintz EL, Latvis CR, Shepherd BR, Presnell SC, McConnell MJ, Highley C, Peirce SM, Christ GJ. Bioprinting on sheet-based scaffolds applied to the creation of implantable tissue-engineered constructs with potentially diverse clinical applications: Tissue-Engineered Muscle Repair (TEMR) as a representative testbed. Connect Tissue Res 2020; 61:216-228. [PMID: 31899969 DOI: 10.1080/03008207.2019.1679800] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Purpose: This report explores the overlooked potential of bioprinting to automate biomanufacturing of simple tissue structures, such as the uniform deposition of (mono)layers of progenitor cells on sheetlike decellularized extracellular matrices (dECM). In this scenario, dECM serves as a biodegradable celldelivery matrix to provide enhanced regenerative microenvironments for tissue repair. The Tissue-Engineered Muscle Repair (TEMR) technology-where muscle progenitor cells are seeded onto a porcine bladder acellular matrix (BAM), serves as a representative testbed for bioprinting applications. Previous work demonstrated that TEMR implantation improved functional outcomes following VML injury in biologically relevant rodent models.Materials and Methods: In the described bioprinting system, a cell-laden hydrogel bioink is used to deposit high cell densities (1.4 × 105-3.5 × 105 cells/cm2), onto both sides of the bladder acellular matrix as proof-of-concept.Results: These bioprinting methods achieve a reproducible and homogeneous distribution of cells, on both sides of the BAM scaffold, after just 24hrs, with cell viability as high as 98%. These preliminary results suggest bioprinting allows for improved dual-sided cell coverage compared to manual-seeding.Conclusions: Bioprinting can enable automated fabrication of TEMR constructs with high fidelity and scalability, while reducing biomanufacturing costs and timelines. Such bioprinting applications are underappreciated, yet critical, to expand the overall biomanufacturing paradigm for tissue engineered medical products. In addition, biofabrication of sheet-like implantable constructs, with cells deposited on both sides, is a process that is both scaffold and cell-type agnostic, and furthermore, is amenable to many geometries, and thus, additional tissue engineering applications beyond skeletal muscle.
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Affiliation(s)
- R K Bour
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA
| | - P R Sharma
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA
| | - J S Turner
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA
| | - W E Hess
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA
| | - E L Mintz
- Department of Pathology, University of Virginia, Charlottesville, VA, USA
| | - C R Latvis
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA
| | | | | | - M J McConnell
- Departments of Biochemistry and Molecular Genetics, and Neuroscience, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - C Highley
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA.,Department of Chemical Engineering, University of Virginia, Charlottesville, VA, USA
| | - S M Peirce
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA.,Department of Plastic Surgery, University of Virginia, Charlottesville, VA, USA
| | - G J Christ
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA.,Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA, USA
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32
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Mintz EL, Passipieri JA, Franklin IR, Toscano VM, Afferton EC, Sharma PR, Christ GJ. Long-Term Evaluation of Functional Outcomes Following Rat Volumetric Muscle Loss Injury and Repair. Tissue Eng Part A 2020; 26:140-156. [PMID: 31578935 DOI: 10.1089/ten.tea.2019.0126] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Volumetric muscle loss (VML) injuries, by definition, exceed the endogenous repair capacity of skeletal muscle resulting in permanent structural and functional deficits. VML injuries present a significant burden for both civilian and military medicine. Despite progress, there is still considerable room for therapeutic improvement. In this regard, tissue-engineered constructs show promise for VML repair, as they provide an opportunity to introduce both scaffolding and cellular components. We have pioneered the development of a tissue-engineered muscle repair (TEMR) technology created by seeding muscle progenitor cells onto a porcine-derived bladder acellular matrix followed by cyclic stretch preconditioning before implantation. Our work to date has demonstrated significant functional repair (60-90% functional recovery) in progressively larger rodent models of VML injury following TEMR implantation. Notwithstanding this success, TEMR implantation in cylindrically shaped VML injuries in the tibialis anterior (TA) muscle was associated with more variable functional outcomes than has been observed in sheet-like muscles such as the latissimus dorsi. In fact, previous observations documented a dichotomy of responses following TEMR implantation in a rodent TA VML injury model; with an ≈61% functional improvement observed in fewer than half (46%) of TEMR-implanted animals at 12 weeks postinjury. This current study builds directly from those observations as we modified the geometry of both the VML injury and the TEMR construct to determine if improved matching of the implanted TEMR construct to the surgically created VML injury resulted in increased functional recovery posttreatment. Following these modifications, we observed a comparable degree of functional improvement in a larger proportion of animals (≈67%) that was durable up to 24 weeks post-TEMR implantation. Moreover, in ≈25% of all TEMR-implanted animals, functional recovery was virtually complete (TEMR max responders), and furthermore, the functional recovery in all 67% of responding animals was accompanied by the presence of native-like muscle properties within the repaired TA muscle, including fiber cross-sectional area, fiber type, vascularization, and innervation. This study emphasizes the importance of tuning the application of tissue engineering technology platforms to the specific requirements of diverse VML injuries to improve functional outcomes. Impact Statement This report confirms and extends previous observations with our implantable tissue-engineered technology platform for repair of volumetric muscle loss (VML) injuries. Based on our prior work, we addressed factors hypothesized to be responsible for significant outcome variability following treatment of VML injuries in a rat tibialis anterior model. Through customization of the muscle repair technology to a specific VML injury, we were able to significantly increase the frequency at which functional recovery occurred, and furthermore, demonstrate durability out to 6 months. In addition, the enhanced biomimetic qualities of repaired muscle tissue were associated with the most robust functional outcomes.
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Affiliation(s)
- Ellen L Mintz
- Department of Pathology, University of Virginia, Charlottesville, Virginia
| | - Juliana A Passipieri
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | | | - Victoria M Toscano
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | - Emma C Afferton
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | - Poonam R Sharma
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | - George J Christ
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia.,Department of Orthopaedics, University of Virginia, Charlottesville, Virginia
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33
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Kim JT, Kasukonis B, Dunlap G, Perry R, Washington T, Wolchok JC. Regenerative Repair of Volumetric Muscle Loss Injury is Sensitive to Age. Tissue Eng Part A 2020; 26:3-14. [PMID: 31064280 PMCID: PMC6983754 DOI: 10.1089/ten.tea.2019.0034] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 04/25/2019] [Indexed: 12/20/2022] Open
Abstract
In this study, the influence of age on effectiveness of regenerative repair for the treatment of volumetric muscle loss (VML) injury was explored. Tibialis anterior (TA) VML injuries were repaired in both 3- and 18-month-old animal models (Fischer 344 rat) using allogeneic decellularized skeletal muscle (DSM) scaffolds supplemented with autologous minced muscle (MM) paste. Within the 3-month animal group, TA peak contractile force was significantly improved (79% of normal) in response to DSM+MM repair. However, within the 18-month animal group, muscle force following repair (57% of normal) was not significantly different from unrepaired VML controls (59% of normal). Within the 3-month animal group, repair with DSM+MM generally reduced scarring at the site of VML repair, whereas scarring and a loss of contractile tissue was notable at the site of repair within the 18-month group. Within 3-month animals, expression of myogenic genes (MyoD, MyoG), extracellular matrix genes (Col I, Col III, TGF-β), and key wound healing genes (TNF-α and IL-1β) were increased. Alternatively, expression was unchanged across all genes examined within the 18-month animal group. The findings suggest that a decline in regenerative capacity and increased fibrosis with age may present an obstacle to regenerative medicine strategies targeting VML injury. Impact Statement This study compared the recovery following volumetric muscle loss (VML) injury repair using a combination of minced muscle paste and decellularized muscle extracellular matrix carrier in both a younger (3 months) and older (18 months) rat population. Currently, VML repair research is being conducted with the young patient population in mind, but our group is the first to look at the effects of age on the efficacy of VML repair. Our findings highlight the importance of considering age-related changes in response to VML when developing repair strategies targeting an elderly patient population.
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Affiliation(s)
- John T. Kim
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas
| | - Benjamin Kasukonis
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas
| | - Grady Dunlap
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas
| | - Richard Perry
- Department of Health, Human Performance, and Recreation, College of Education and Health Professions, University of Arkansas, Fayetteville, Arkansas
| | - Tyrone Washington
- Department of Health, Human Performance, and Recreation, College of Education and Health Professions, University of Arkansas, Fayetteville, Arkansas
| | - Jeffrey C. Wolchok
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas
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Gilbert-Honick J, Grayson W. Vascularized and Innervated Skeletal Muscle Tissue Engineering. Adv Healthc Mater 2020; 9:e1900626. [PMID: 31622051 PMCID: PMC6986325 DOI: 10.1002/adhm.201900626] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 09/27/2019] [Indexed: 12/12/2022]
Abstract
Volumetric muscle loss (VML) is a devastating loss of muscle tissue that overwhelms the native regenerative properties of skeletal muscle and results in lifelong functional deficits. There are currently no treatments for VML that fully recover the lost muscle tissue and function. Tissue engineering presents a promising solution for VML treatment and significant research has been performed using tissue engineered muscle constructs in preclinical models of VML with a broad range of defect locations and sizes, tissue engineered construct characteristics, and outcome measures. Due to the complex vascular and neural anatomy within skeletal muscle, regeneration of functional vasculature and nerves is vital for muscle recovery following VML injuries. This review aims to summarize the current state of the field of skeletal muscle tissue engineering using 3D constructs for VML treatment with a focus on studies that have promoted vascular and neural regeneration within the muscle tissue post-VML.
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Affiliation(s)
- Jordana Gilbert-Honick
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Warren Grayson
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Material Sciences & Engineering, Johns Hopkins University, School of Engineering, Baltimore, MD 21218, USA
- Institute for NanoBioTechnology (INBT), Johns Hopkins University School of Engineering, Baltimore, MD 21218, USA
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Razzaghi M, Rostami-Nejad M, Rezaei-Taviran M, Zamanian Azodi M, Okhovatian F, Mansouri V, Ahmadi N. Muscle Recovery Is Highlighted by IR Laser Therapy. J Lasers Med Sci 2019; 10:S49-S53. [PMID: 32021673 DOI: 10.15171/jlms.2019.s9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Introduction: In sports medicine, laser application has been well-established for the recovery of muscles. The mechanisms by which benefits of this kind of therapy can be studied is molecular research approach. Protein-protein interaction network analysis as one of the important complementary studies of proteomics can accelerate this goal by the identification of novel contributing markers. Methods: By the use of Cytoscape V3.7.1 and its applications, a network of differential expressed proteins (DEPs) from IR laser treatment samples were constructed and analyzed. Six hub-bottlenecks were determined, 4 of which were from differentially expressed proteins. Results: ClueGO discovered 4 biological processes related to these hub-bottlenecks that their function could alter due to IR laser therapy. Conclusion: In fact, by the expression changes of hub-bottlenecks including the up-regulation of HSP90s, one of the prominent biological processes in muscle recovery could be activated. This process is called nitric oxide synthase (NOS) activation that could be proposed as one of the underlying mechanisms of IR laser treatments in muscle recovery.
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Affiliation(s)
- Mohammadreza Razzaghi
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Rostami-Nejad
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mostafa Rezaei-Taviran
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mona Zamanian Azodi
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farshad Okhovatian
- Physiotherapy Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahid Mansouri
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nayebali Ahmadi
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Greising SM, Corona BT, McGann C, Frankum JK, Warren GL. Therapeutic Approaches for Volumetric Muscle Loss Injury: A Systematic Review and Meta-Analysis. TISSUE ENGINEERING PART B-REVIEWS 2019; 25:510-525. [PMID: 31578930 DOI: 10.1089/ten.teb.2019.0207] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Our goal was to understand the impact of regenerative therapies on the functional capacity of skeletal muscle following volumetric muscle loss (VML) injury. An extensive database search (e.g., PubMed, Cochrane Library, and ClinicalTrials.gov) was conducted up through January 2019 to evaluate the following: "In humans or animals with VML injury, is treatment better than no treatment at recovering functional capacity?" Study eligibility criteria required studies to have both an untreated and at least one treated VML injury group. From 2312 study reports, 44 studies met the inclusion criteria. Quantitative functional capacity data (absolute and/or normalized strength) or proportional measures (histological analysis quantifying viable muscle tissue, mitochondrial function, and/or exhaustive treadmill running) were extracted for use. While both human and animal studies were included in the searches, only animal studies met the eligibility criteria. Using a random-effects model, Hedges' g was used as the effect size (ES) and calculated such that a positive ES indicated treatment efficacy. The overall ES was 0.75 (95% confidence interval: 0.53-0.96; p < 0.0000001), indicating that the treatments, on average, resulted in a significant improvement in functional capacity. From network meta-analyses, it was determined that an acellular biomaterial combined with stem and/or progenitor cells had the greatest treatment effectiveness. The findings indicate that various treatments in animal models of VML improve the functional capacity of muscle compared to leaving the injury untreated; however, the ∼16% beneficial effect is small. Our results suggest that current regenerative therapy paradigms require further maturation to achieve clinically meaningful improvements in the functional capacity of the muscle. Impact Statement Our most salient findings are that (1) various treatment approaches used in animal models of volumetric muscle loss (VML) injury improve functional capacity compared to leaving the injury untreated and (2) an acellular biomaterial in combination with cellular components was the most effective treatment to improve functional capacity following VML injury to date. The nature of our findings has substantial implications for regenerative medicine, biomedical engineering, and rehabilitative techniques currently being evaluated and developed for VML injury repair, and are pivotal to the progression of the regenerative medicine effort aimed at restoring maximal function to traumatized and disabled limbs.
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Affiliation(s)
- Sarah M Greising
- School of Kinesiology, University of Minnesota, Minneapolis, Minnesota
| | - Benjamin T Corona
- School of Medicine, Wake Forest University, Winston-Salem, North Carolina
| | - Christopher McGann
- Department of Physical Therapy, Georgia State University, Atlanta, Georgia
| | - Jeremy K Frankum
- Department of Physical Therapy, Georgia State University, Atlanta, Georgia
| | - Gordon L Warren
- Department of Physical Therapy, Georgia State University, Atlanta, Georgia
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Passipieri JA, Hu X, Mintz E, Dienes J, Baker HB, Wallace CH, Blemker SS, Christ GJ. In Silico and In Vivo Studies Detect Functional Repair Mechanisms in a Volumetric Muscle Loss Injury. Tissue Eng Part A 2019; 25:1272-1288. [PMID: 30882277 PMCID: PMC6760186 DOI: 10.1089/ten.tea.2018.0280] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 12/10/2018] [Indexed: 11/12/2022] Open
Abstract
IMPACT STATEMENT Despite medical advances, volumetric muscle loss (VML) injuries to craniofacial muscles represent an unmet clinical need. We report an implantable tissue-engineered construct that leads to substantial tissue regeneration and functional recovery in a preclinical model of VML injury that is dimensionally relevant to unilateral cleft lip repair, and a series of corresponding computational models that provide biomechanical insight into mechanism(s) responsible for the VML-induced functional deficits and recovery following tissue-engineered muscle repair implantation. This unique combined approach represents a critical first step toward establishing a crucial biomechanical basis for the development of efficacious regenerative technologies, considering the spectrum of VML injuries.
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Affiliation(s)
- Juliana A. Passipieri
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | - Xiao Hu
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | - Ellen Mintz
- Department of Pathology, University of Virginia, Charlottesville, Virginia
| | - Jack Dienes
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | - Hannah B. Baker
- Wake Forest Institute for Regenerative Medicine, Wake Forest University, Winston-Salem, North Carolina
| | - C. Hunter Wallace
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | - Silvia S. Blemker
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
- Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia
| | - George J. Christ
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
- Department of Orthopaedics, University of Virginia, Charlottesville, Virginia
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38
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Dunn A, Talovic M, Patel K, Patel A, Marcinczyk M, Garg K. Biomaterial and stem cell-based strategies for skeletal muscle regeneration. J Orthop Res 2019; 37:1246-1262. [PMID: 30604468 DOI: 10.1002/jor.24212] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 12/13/2018] [Indexed: 02/04/2023]
Abstract
Adult skeletal muscle can regenerate effectively after mild physical or chemical insult. Muscle trauma or disease can overwhelm this innate capacity for regeneration and result in heightened inflammation and fibrotic tissue deposition resulting in loss of structure and function. Recent studies have focused on biomaterial and stem cell-based therapies to promote skeletal muscle regeneration following injury and disease. Many stem cell populations besides satellite cells are implicated in muscle regeneration. These stem cells include but are not limited to mesenchymal stem cells, adipose-derived stem cells, hematopoietic stem cells, pericytes, fibroadipogenic progenitors, side population cells, and CD133+ stem cells. However, several challenges associated with their isolation, availability, delivery, survival, engraftment, and differentiation have been reported in recent studies. While acellular scaffolds offer a relatively safe and potentially off-the-shelf solution to cell-based therapies, they are often unable to stimulate host cell migration and activity to a level that would result in clinically meaningful regeneration of traumatized muscle. Combining stem cells and biomaterials may offer a viable therapeutic strategy that may overcome the limitations associated with these therapies when they are used in isolation. In this article, we review the stem cell populations that can stimulate muscle regeneration in vitro and in vivo. We also discuss the regenerative potential of combination therapies that utilize both stem cell and biomaterials for the treatment of skeletal muscle injury and disease. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:1246-1262, 2019.
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Affiliation(s)
- Andrew Dunn
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, Saint Louis, Missouri
| | - Muhamed Talovic
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, Saint Louis, Missouri
| | - Krishna Patel
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, Saint Louis, Missouri
| | - Anjali Patel
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, Saint Louis, Missouri
| | - Madison Marcinczyk
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, Saint Louis, Missouri
| | - Koyal Garg
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University, Saint Louis, Missouri
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39
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Passipieri JA, Dienes J, Frank J, Glazier J, Portell A, Venkatesh KP, Bliley JM, Grybowski D, Schilling BK, Marra KG, Christ GJ. Adipose Stem Cells Enhance Nerve Regeneration and Muscle Function in a Peroneal Nerve Ablation Model. Tissue Eng Part A 2019; 27:297-310. [PMID: 30760135 DOI: 10.1089/ten.tea.2018.0244] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Severe peripheral nerve injuries have devastating consequences on the quality of life in affected patients, and they represent a significant unmet medical need. Destruction of nerve fibers results in denervation of targeted muscles, which, subsequently, undergo progressive atrophy and loss of function. Timely restoration of neural innervation to muscle fibers is crucial to the preservation of muscle homeostasis and function. The goal of this study was to evaluate the impact of addition of adipose stem cells (ASCs) to polycaprolactone (PCL) nerve conduit guides on peripheral nerve repair and functional muscle recovery in the setting of a critical size nerve defect. To this end, peripheral nerve injury was created by surgically ablating 6 mm of the common peroneal nerve in a rat model. A PCL nerve guide, filled with ASCs and/or poloxamer hydrogel, was sutured to the nerve ends. Negative and positive controls included nerve ablation only (no repair), and reversed polarity autograft nerve implant, respectively. Tibialis anterior (TA) muscle function was assessed at 4, 8, and 12 weeks postinjury, and nerve and muscle tissue was retrieved at the 12-week terminal time point. Inclusion of ASCs in the PCL nerve guide elicited statistically significant time-dependent increases in functional recovery (contraction) after denervation; ∼25% higher than observed in acellular (poloxamer-filled) implants and indistinguishable from autograft implants, respectively, at 12 weeks postinjury (p < 0.05, n = 7-8 in each group). Analysis of single muscle fiber cross-sectional area (CSA) revealed that ASC-based treatment of nerve injury provided a better recapitulation of the overall distribution of muscle fiber CSAs observed in the contralateral TA muscle of uninjured limbs. In addition, the presence of ASCs was associated with improved features of re-innervation distal to the defect, with respect to neurofilament and S100 (Schwann cell marker) expression. In conclusion, these initial studies indicate significant benefits of inclusion of ASCs to the rate and magnitude of both peripheral nerve regeneration and functional recovery of muscle contraction, to levels equivalent to autograft implantation. These findings have important implications to improved nerve repair, and they provide input for future work directed to restoration of nerve and muscle function after polytraumatic injury. Impact Statement This works explores the application of adipose stem cells (ASCs) for peripheral nerve regeneration in a rat model. Herein, we demonstrate that the addition of ASCs in poloxamer-filled PCL nerve guide conduits impacts nerve regeneration and recovery of muscle function, to levels equivalent to autograft implantation, which is considered to be the current gold standard treatment. This study builds on the importance of a timely restoration of innervation to muscle fibers for preservation of muscle homeostasis, and it will provide input for future work aiming at restoring nerve and muscle function after polytraumatic injury.
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Affiliation(s)
- Juliana A Passipieri
- Biomedical Engineering Department, University of Virginia, Charlottesville, Virginia
| | - Jack Dienes
- Biomedical Engineering Department, University of Virginia, Charlottesville, Virginia
| | - Joseph Frank
- Biomedical Engineering Department, University of Virginia, Charlottesville, Virginia
| | - Joshua Glazier
- Biomedical Engineering Department, University of Virginia, Charlottesville, Virginia
| | - Andrew Portell
- Biomedical Engineering Department, University of Virginia, Charlottesville, Virginia
| | - Kaushik P Venkatesh
- Department of Bioengineering and University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jacqueline M Bliley
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Damian Grybowski
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Benjamin K Schilling
- Department of Bioengineering and University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Kacey G Marra
- Department of Bioengineering and University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania.,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - George J Christ
- Biomedical Engineering Department, University of Virginia, Charlottesville, Virginia.,Orthopaedics Department, University of Virginia, Charlottesville, Virginia
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40
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Tang X, Daneshmandi L, Awale G, Nair LS, Laurencin CT. Skeletal Muscle Regenerative Engineering. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2019; 5:233-251. [PMID: 33778155 DOI: 10.1007/s40883-019-00102-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Skeletal muscles have the intrinsic ability to regenerate after minor injury, but under certain circumstances such as severe trauma from accidents, chronic diseases or battlefield injuries the regeneration process is limited. Skeletal muscle regenerative engineering has emerged as a promising approach to address this clinical issue. The regenerative engineering approach involves the convergence of advanced materials science, stem cell science, physical forces, insights from developmental biology, and clinical translation. This article reviews recent studies showing the potential of the convergences of technologies involving biomaterials, stem cells and bioactive factors in concert with clinical translation, in promoting skeletal muscle regeneration. Several types of biomaterials such as electrospun nanofibers, hydrogels, patterned scaffolds, decellularized tissues, and conductive matrices are being investigated. Detailed discussions are given on how these biomaterials can interact with cells and modulate their behavior through physical, chemical and mechanical cues. In addition, the application of physical forces such as mechanical and electrical stimulation are reviewed as strategies that can further enhance muscle contractility and functionality. The review also discusses established animal models to evaluate regeneration in two clinically relevant muscle injuries; volumetric muscle loss (VML) and muscle atrophy upon rotator cuff injury. Regenerative engineering approaches using advanced biomaterials, cells, and physical forces, developmental cues along with insights from immunology, genetics and other aspects of clinical translation hold significant potential to develop promising strategies to support skeletal muscle regeneration.
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Affiliation(s)
- Xiaoyan Tang
- Connecticut Convergence Institute for Translation in Regenerative Engineering, UConn Health, Farmington, CT 06030, USA.,Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030, USA.,Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, UConn Health, Farmington, CT 06030, USA.,Department of Materials Science and Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Leila Daneshmandi
- Connecticut Convergence Institute for Translation in Regenerative Engineering, UConn Health, Farmington, CT 06030, USA.,Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030, USA.,Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, UConn Health, Farmington, CT 06030, USA.,Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Guleid Awale
- Connecticut Convergence Institute for Translation in Regenerative Engineering, UConn Health, Farmington, CT 06030, USA.,Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030, USA.,Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, UConn Health, Farmington, CT 06030, USA.,Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Lakshmi S Nair
- Connecticut Convergence Institute for Translation in Regenerative Engineering, UConn Health, Farmington, CT 06030, USA.,Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030, USA.,Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, UConn Health, Farmington, CT 06030, USA.,Department of Materials Science and Engineering, University of Connecticut, Storrs, CT 06269, USA.,Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Cato T Laurencin
- Connecticut Convergence Institute for Translation in Regenerative Engineering, UConn Health, Farmington, CT 06030, USA.,Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030, USA.,Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, UConn Health, Farmington, CT 06030, USA.,Department of Materials Science and Engineering, University of Connecticut, Storrs, CT 06269, USA.,Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA.,Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, CT 06269, USA
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41
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Nakayama KH, Shayan M, Huang NF. Engineering Biomimetic Materials for Skeletal Muscle Repair and Regeneration. Adv Healthc Mater 2019; 8:e1801168. [PMID: 30725530 PMCID: PMC6589032 DOI: 10.1002/adhm.201801168] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 12/21/2018] [Indexed: 11/12/2022]
Abstract
Although skeletal muscle is highly regenerative following injury or disease, endogenous self-regeneration is severely impaired in conditions of volume traumatic muscle loss. Consequently, tissue engineering approaches are a promising means to regenerate skeletal muscle. Biological scaffolds serve as not only structural support for the promotion of cellular ingrowth but also impart potent modulatory signaling cues that may be beneficial for tissue regeneration. In this work, the progress of tissue engineering approaches for skeletal muscle engineering and regeneration is overviewed, with a focus on the techniques to create biomimetic engineered tissue using extracellular cues. These factors include mechanical and electrical stimulation, geometric patterning, and delivery of growth factors or other bioactive molecules. The progress of evaluating the therapeutic efficacy of these approaches in preclinical models of muscle injury is further discussed.
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Affiliation(s)
- Karina H Nakayama
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, 94305, USA
- Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA, 94304, USA
- The Stanford Cardiovascular Institute, Stanford University, Stanford, CA, 94305, USA
| | - Mahdis Shayan
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, 94305, USA
- Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA, 94304, USA
- The Stanford Cardiovascular Institute, Stanford University, Stanford, CA, 94305, USA
| | - Ngan F Huang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, 94305, USA
- Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA, 94304, USA
- The Stanford Cardiovascular Institute, Stanford University, Stanford, CA, 94305, USA
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Chen H, Zhong J, Wang J, Huang R, Qiao X, Wang H, Tan Z. Enhanced growth and differentiation of myoblast cells grown on E-jet 3D printed platforms. Int J Nanomedicine 2019; 14:937-950. [PMID: 30787608 PMCID: PMC6366362 DOI: 10.2147/ijn.s193624] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Skeletal muscle tissue engineering often involves the prefabrication of muscle tissues in vitro by differentiation and maturation of muscle precursor cells on a platform which provides an environment that facilitates the myogenic differentiation of the seeded cells. METHODS Poly lactic-co-glycolic acid (PLGA) 3D printed scaffolds, which simulate the highly complex structure of extracellular matrix (ECM), were fabricated by E-jet 3D printing in this study. The scaffolds were used as platforms, providing environment that aids in growth, differentiation and other properties of C2C12 myoblast cells. RESULTS The C2C12 myoblast cells grown on the PLGA 3D printed platforms had enhanced cell adhesion and proliferation. Moreover, the platforms were able to induce myogenic differentiation of the myoblast cells by promoting the formation of myotubes and up-regulating the expressions of myogenic genes (MyHC and MyOG). CONCLUSION The fabricated 3D printed platforms have excellent biocompatibility, thereby can potentially be used as functional cell culture platforms in skeletal tissue engineering and regeneration.
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Affiliation(s)
- Haoxiang Chen
- College of Biology, Hunan University, Changsha, Hunan 410082, China,
| | - Juchang Zhong
- College of Biology, Hunan University, Changsha, Hunan 410082, China,
| | - Jian Wang
- College of Biology, Hunan University, Changsha, Hunan 410082, China,
| | - Ruiying Huang
- College of Biology, Hunan University, Changsha, Hunan 410082, China,
| | - Xiaoyin Qiao
- College of Biology, Hunan University, Changsha, Hunan 410082, China,
| | - Honghui Wang
- College of Biology, Hunan University, Changsha, Hunan 410082, China,
| | - Zhikai Tan
- College of Biology, Hunan University, Changsha, Hunan 410082, China,
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Effects of topical applications of porcine acellular urinary bladder matrix and Centella asiatica extract on oral wound healing in a rat model. Clin Oral Investig 2018; 23:2083-2095. [DOI: 10.1007/s00784-018-2620-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 09/04/2018] [Indexed: 12/22/2022]
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44
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Nakayama KH, Alcazar C, Yang G, Quarta M, Paine P, Doan L, Davies A, Rando TA, Huang NF. Rehabilitative exercise and spatially patterned nanofibrillar scaffolds enhance vascularization and innervation following volumetric muscle loss. NPJ Regen Med 2018; 3:16. [PMID: 30245849 PMCID: PMC6141593 DOI: 10.1038/s41536-018-0054-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 08/16/2018] [Accepted: 08/21/2018] [Indexed: 11/09/2022] Open
Abstract
Muscle regeneration can be permanently impaired by traumatic injuries, despite the high regenerative capacity of skeletal muscle. Implantation of engineered biomimetic scaffolds to the site of muscle ablation may serve as an attractive off-the-shelf therapeutic approach. The objective of the study was to histologically assess the therapeutic benefit of a three-dimensional spatially patterned collagen scaffold, in conjunction with rehabilitative exercise, for treatment of volumetric muscle loss. To mimic the physiologic organization of skeletal muscle, which is generally composed of myofibers aligned in parallel, three-dimensional parallel-aligned nanofibrillar collagen scaffolds were fabricated. When implanted into the ablated murine tibialis anterior muscle, the aligned nanofibrillar scaffolds, in conjunction with voluntary caged wheel exercise, significantly improved the density of perfused microvessels, in comparison to treatments of the randomly oriented nanofibrillar scaffold, decellularized scaffold, or in the untreated control group. The abundance of neuromuscular junctions was 19-fold higher when treated with aligned nanofibrillar scaffolds in conjunction with exercise, in comparison to treatment of aligned scaffold without exercise. Although, the density of de novo myofibers was not significantly improved by aligned scaffolds, regardless of exercise activity, the cross-sectional area of regenerating myofibers was increased by > 60% when treated with either aligned and randomly oriented scaffolds, in comparison to treatment of decellularized scaffold or untreated controls. These findings demonstrate that voluntary exercise improved the regenerative effect of aligned scaffolds by augmenting neurovascularization, and have important implications in the design of engineered biomimetic scaffolds for treatment of traumatic muscle injury. A collagen scaffold designed to mimic skeletal muscle, together with rehabilitative exercise, can help regenerate nerves and blood vessels following traumatic muscle injury. Ngan Huang from Stanford University, California, USA, and colleagues created scaffolding composed of collagen nanofibers aligned in parallel, as natural muscle fibers are. They implanted these specially patterned collagen constructs into the shins of mice that had no tibialis anterior muscles. Mice given the opportunity to exercise formed far more nerve connections in their injured muscles compared to mice without exercise wheels in their cages. Active mice also developed significantly more blood vessels in their injured muscles with the parallel-aligned scaffolds compared to other animals with randomly oriented scaffolds, decellularized scaffolds or no implant at all. The findings highlight the potential of combining exercise and biomimetic scaffolds to treat muscle trauma.
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Affiliation(s)
- Karina H Nakayama
- 1Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA 94304 USA.,2The Stanford Cardiovascular Institute, Stanford University, Stanford, CA 94305 USA.,3Department of Cardiothoracic Surgery, Stanford University, Stanford, CA 94305 USA
| | - Cynthia Alcazar
- 1Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA 94304 USA
| | - Guang Yang
- 1Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA 94304 USA.,2The Stanford Cardiovascular Institute, Stanford University, Stanford, CA 94305 USA
| | - Marco Quarta
- 1Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA 94304 USA.,4Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA 94304 USA
| | - Patrick Paine
- 1Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA 94304 USA
| | - Linda Doan
- 1Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA 94304 USA
| | - Adam Davies
- 1Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA 94304 USA
| | - Thomas A Rando
- 1Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA 94304 USA.,4Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA 94304 USA
| | - Ngan F Huang
- 1Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA 94304 USA.,2The Stanford Cardiovascular Institute, Stanford University, Stanford, CA 94305 USA.,3Department of Cardiothoracic Surgery, Stanford University, Stanford, CA 94305 USA
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45
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Maleiner B, Tomasch J, Heher P, Spadiut O, Rünzler D, Fuchs C. The Importance of Biophysical and Biochemical Stimuli in Dynamic Skeletal Muscle Models. Front Physiol 2018; 9:1130. [PMID: 30246791 PMCID: PMC6113794 DOI: 10.3389/fphys.2018.01130] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 07/30/2018] [Indexed: 12/31/2022] Open
Abstract
Classical approaches to engineer skeletal muscle tissue based on current regenerative and surgical procedures still do not meet the desired outcome for patient applications. Besides the evident need to create functional skeletal muscle tissue for the repair of volumetric muscle defects, there is also growing demand for platforms to study muscle-related diseases, such as muscular dystrophies or sarcopenia. Currently, numerous studies exist that have employed a variety of biomaterials, cell types and strategies for maturation of skeletal muscle tissue in 2D and 3D environments. However, researchers are just at the beginning of understanding the impact of different culture settings and their biochemical (growth factors and chemical changes) and biophysical cues (mechanical properties) on myogenesis. With this review we intend to emphasize the need for new in vitro skeletal muscle (disease) models to better recapitulate important structural and functional aspects of muscle development. We highlight the importance of choosing appropriate system components, e.g., cell and biomaterial type, structural and mechanical matrix properties or culture format, and how understanding their interplay will enable researchers to create optimized platforms to investigate myogenesis in healthy and diseased tissue. Thus, we aim to deliver guidelines for experimental designs to allow estimation of the potential influence of the selected skeletal muscle tissue engineering setup on the myogenic outcome prior to their implementation. Moreover, we offer a workflow to facilitate identifying and selecting different analytical tools to demonstrate the successful creation of functional skeletal muscle tissue. Ultimately, a refinement of existing strategies will lead to further progression in understanding important aspects of muscle diseases, muscle aging and muscle regeneration to improve quality of life of patients and enable the establishment of new treatment options.
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Affiliation(s)
- Babette Maleiner
- Department of Biochemical Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria.,The Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Janine Tomasch
- Department of Biochemical Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria.,The Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Philipp Heher
- The Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Ludwig Boltzmann Institute for Experimental and Clinical Traumatology/AUVA Research Center, Vienna, Austria.,Trauma Care Consult GmbH, Vienna, Austria
| | - Oliver Spadiut
- Institute of Chemical Engineering, Vienna University of Technology, Vienna, Austria
| | - Dominik Rünzler
- Department of Biochemical Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria.,The Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Christiane Fuchs
- Department of Biochemical Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria.,The Austrian Cluster for Tissue Regeneration, Vienna, Austria
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46
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Patel A, Xue Y, Hartley R, Sant V, Eles JR, Cui XT, Stolz DB, Sant S. Hierarchically aligned fibrous hydrogel films through microfluidic self-assembly of graphene and polysaccharides. Biotechnol Bioeng 2018; 115:2654-2667. [PMID: 30011077 DOI: 10.1002/bit.26801] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 05/25/2018] [Accepted: 06/26/2018] [Indexed: 12/17/2022]
Abstract
Despite significant interest in developing extracellular matrix (ECM)-inspired biomaterials to recreate native cell-instructive microenvironments, the major challenge in the biomaterial field is to recapitulate the complex structural and biophysical features of native ECM. These biophysical features include multiscale hierarchy, electrical conductivity, optimum wettability, and mechanical properties. These features are critical to the design of cell-instructive biomaterials for bioengineering applications such as skeletal muscle tissue engineering. In this study, we used a custom-designed film fabrication assembly, which consists of a microfluidic chamber to allow electrostatic charge-based self-assembly of oppositely charged polymer solutions forming a hydrogel fiber and eventually, a nanocomposite fibrous hydrogel film. The film recapitulates unidirectional hierarchical fibrous structure along with the conductive properties to guide initial alignment and myotube formation from cultured myoblasts. We combined high conductivity, and charge carrier mobility of graphene with biocompatibility of polysaccharides to develop graphene-polysaccharide nanocomposite fibrous hydrogel films. The incorporation of graphene in fibrous hydrogel films enhanced their wettability, electrical conductivity, tensile strength, and toughness without significantly altering their elastic properties (Young's modulus). In a proof-of-concept study, the mouse myoblast cells (C2C12) seeded on these nanocomposite fibrous hydrogel films showed improved spreading and enhanced myogenesis as evident by the formation of multinucleated myotubes, an early indicator of myogenesis. Overall, graphene-polysaccharide nanocomposite fibrous hydrogel films provide a potential biomaterial to promote skeletal muscle tissue regeneration.
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Affiliation(s)
- Akhil Patel
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Yingfei Xue
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Rebecca Hartley
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Vinayak Sant
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - James R Eles
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania.,McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania
| | - Xinyan Tracy Cui
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania.,McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania.,Center for the Neural Basis of Cognition, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Donna Beer Stolz
- McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania.,Center for Biologic Imaging, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Cell Biology and Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Shilpa Sant
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania.,McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania
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47
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Pantelic MN, Larkin LM. Stem Cells for Skeletal Muscle Tissue Engineering. TISSUE ENGINEERING PART B-REVIEWS 2018; 24:373-391. [PMID: 29652595 DOI: 10.1089/ten.teb.2017.0451] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Volumetric muscle loss (VML) is a debilitating condition wherein muscle loss overwhelms the body's normal physiological repair mechanism. VML is particularly common among military service members who have sustained war injuries. Because of the high social and medical cost associated with VML and suboptimal current surgical treatments, there is great interest in developing better VML therapies. Skeletal muscle tissue engineering (SMTE) is a promising alternative to traditional VML surgical treatments that use autogenic tissue grafts, and rather uses isolated stem cells with myogenic potential to generate de novo skeletal muscle tissues to treat VML. Satellite cells are the native precursors to skeletal muscle tissue, and are thus the most commonly studied starting source for SMTE. However, satellite cells are difficult to isolate and purify, and it is presently unknown whether they would be a practical source in clinical SMTE applications. Alternative myogenic stem cells, including adipose-derived stem cells, bone marrow-derived mesenchymal stem cells, perivascular stem cells, umbilical cord mesenchymal stem cells, induced pluripotent stem cells, and embryonic stem cells, each have myogenic potential and have been identified as possible starting sources for SMTE, although they have yet to be studied in detail for this purpose. These alternative stem cell varieties offer unique advantages and disadvantages that are worth exploring further to advance the SMTE field toward highly functional, safe, and practical VML treatments. The following review summarizes the current state of satellite cell-based SMTE, details the properties and practical advantages of alternative myogenic stem cells, and offers guidance to tissue engineers on how alternative myogenic stem cells can be incorporated into SMTE research.
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Affiliation(s)
- Molly N Pantelic
- 1 Department of Molecular and Integrative Physiology, University of Michigan , Ann Arbor, Michigan
| | - Lisa M Larkin
- 1 Department of Molecular and Integrative Physiology, University of Michigan , Ann Arbor, Michigan.,2 Department of Biomedical Engineering, University of Michigan , Ann Arbor, Michigan
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48
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Sarrafian TL, Bodine SC, Murphy B, Grayson JK, Stover SM. Extracellular matrix scaffolds for treatment of large volume muscle injuries: A review. Vet Surg 2018; 47:524-535. [PMID: 29603757 DOI: 10.1111/vsu.12787] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 10/11/2017] [Accepted: 11/03/2017] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Large muscular or musculotendinous defects present a dilemma because of the inadequacies of current treatment strategies. Extracellular matrices (ECM) are potential clinically applicable regenerative biomaterials. This review summarizes information from the preclinical literature evaluating the use of ECM for muscle regeneration in animal models of volumetric muscle loss (VML). STUDY DESIGN Literature review. SAMPLE POPULATION Animal models of VML in which surgical repair was performed with an ECM product, with or without added cell populations. METHODS PubMed, Google Scholar, CAB abstracts, and Scopus were searched for preclinical studies using ECM in animal models of VML. The search terms "extracellular matrix," "VML," "muscle regeneration," "cell seeded," and "scaffold" identified 40 articles that met inclusion criteria of an animal model of VML in which surgical repair was performed with an ECM product, with or without added cell populations. Key skeletal muscle repair mechanisms and experimental findings on scaffold type, VML location, and experimental animal species were summarized. CONCLUSIONS Satellite cells and basal lamina are key endogenous contributors to skeletal muscle regeneration. ECM as a dynamic tissue component may provide structural integrity, signaling molecules, and a 3-dimensional topography conducive to muscle regeneration. Preclinical models of muscle repair most commonly used mice and rats (88%). Most experimental lesions were created in abdominal wall (33%), anterior tibialis (33%), latissimus dorsi (10%), or quadriceps (10%) muscles. Matrices varied markedly in source and preparation. Experimental outcomes of ECM and cell-seeded ECM implantation for muscle regeneration in VML were highly variable and dependent on matrix tissue source, preparation method, and anatomic site of injury. Scar tissue formation likely contributes to load transfer. Nonappendicular lesions had better regenerative results compared with appendicular VML. CLINICAL SIGNIFICANCE The preponderance of current evidence supports the use of ECM for muscle defect repair only in specific instances, such as nonappendicular and/or partial-thickness defects. Consequently, clinical use of ECM in veterinary patients requires careful consideration of the specific ECM product, lesion size and location, and loading circumstances.
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Affiliation(s)
- Tiffany L Sarrafian
- J. D. Wheat Veterinary Orthopedic Research Laboratory, University of California, Davis, Davis, California.,Clinical Investigation Facility, David Grant US Air Force Medical Center, Travis Air Force Base, Fairfield, California
| | - Sue C Bodine
- Department of Neurobiology, Physiology, and Behavior, University of California, Davis, Davis, California
| | - Brian Murphy
- J. D. Wheat Veterinary Orthopedic Research Laboratory, University of California, Davis, Davis, California
| | - J Kevin Grayson
- Clinical Investigation Facility, David Grant US Air Force Medical Center, Travis Air Force Base, Fairfield, California
| | - Susan M Stover
- J. D. Wheat Veterinary Orthopedic Research Laboratory, University of California, Davis, Davis, California
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49
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Somers SM, Spector AA, DiGirolamo DJ, Grayson WL. Biophysical Stimulation for Engineering Functional Skeletal Muscle. TISSUE ENGINEERING PART B-REVIEWS 2018; 23:362-372. [PMID: 28401807 DOI: 10.1089/ten.teb.2016.0444] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Tissue engineering is a promising therapeutic strategy to regenerate skeletal muscle. However, ex vivo cultivation methods typically result in a low differentiation efficiency of stem cells as well as grafts that resemble the native tissues morphologically, but lack contractile function. The application of biomimetic tensile strain provides a potent stimulus for enhancing myogenic differentiation and engineering functional skeletal muscle grafts. We reviewed integrin-dependent mechanisms that potentially link mechanotransduction pathways to the upregulation of myogenic genes. Yet, gaps in our understanding make it challenging to use these pathways to theoretically determine optimal ex vivo strain regimens. A multitude of strain protocols have been applied to in vitro cultures for the cultivation of myogenic progenitors (adipose- and bone marrow-derived stem cells and satellite cells) and transformed murine myoblasts, C2C12s. Strain regimens are characterized by orientation, amplitude, and time-dependent factors (effective frequency, duration, and the rest period between successive strain cycles). Analysis of published data has identified possible minimum/maximum values for these parameters and suggests that uniaxial strains may be more potent than biaxial strains, possibly because they more closely mimic physiologic strain profiles. The application of these biophysical stimuli for engineering 3D skeletal muscle grafts is nontrivial and typically requires custom-designed bioreactors used in combination with biomaterial scaffolds. Consideration of the physical properties of these scaffolds is critical for effective transmission of the applied strains to encapsulated cells. Taken together, these studies demonstrate that biomimetic tensile strain generally results in improved myogenic outcomes in myogenic progenitors and differentiated myoblasts. However, for 3D systems, the optimization of the strain regimen may require the entire system including cells, biomaterials, and bioreactor, to be considered in tandem.
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Affiliation(s)
- Sarah M Somers
- 1 Department of Biomedical Engineering, Johns Hopkins University School of Medicine , Baltimore, Maryland.,2 Translational Tissue Engineering Center, Johns Hopkins University School of Medicine , Baltimore, Maryland
| | - Alexander A Spector
- 1 Department of Biomedical Engineering, Johns Hopkins University School of Medicine , Baltimore, Maryland.,2 Translational Tissue Engineering Center, Johns Hopkins University School of Medicine , Baltimore, Maryland.,3 Institute for Nanobiotechnology (INBT), Johns Hopkins University Whiting School of Engineering , Baltimore, Maryland
| | - Douglas J DiGirolamo
- 4 Department of Orthopedics, Johns Hopkins University School of Medicine , Baltimore Maryland
| | - Warren L Grayson
- 1 Department of Biomedical Engineering, Johns Hopkins University School of Medicine , Baltimore, Maryland.,2 Translational Tissue Engineering Center, Johns Hopkins University School of Medicine , Baltimore, Maryland.,3 Institute for Nanobiotechnology (INBT), Johns Hopkins University Whiting School of Engineering , Baltimore, Maryland.,5 Department of Material Sciences and Engineering, Johns Hopkins University , Whiting School of Engineering, Baltimore, Maryland
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50
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Quarta M. Volumetric muscle loss: Including nerves into the equation. Muscle Nerve 2018; 57:705-706. [PMID: 29365348 DOI: 10.1002/mus.26080] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 01/19/2018] [Accepted: 01/22/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Marco Quarta
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Paul F. Glenn Laboratories for the Biology of Aging, Stanford University School of Medicine, Stanford, California, USA.,Center for Tissue Regeneration, Restoration and Repair, Veterans Affairs Hospital, 3801 Miranda Avenue, Palo Alto, California, 94036, USA
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