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Wight TN, Day AJ, Kang I, Harten IA, Kaber G, Briggs DC, Braun KR, Lemire JM, Kinsella MG, Hinek A, Merrilees MJ. V3: an enigmatic isoform of the proteoglycan versican. Am J Physiol Cell Physiol 2023; 325:C519-C537. [PMID: 37399500 PMCID: PMC10511178 DOI: 10.1152/ajpcell.00059.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 06/09/2023] [Accepted: 06/09/2023] [Indexed: 07/05/2023]
Abstract
V3 is an isoform of the extracellular matrix (ECM) proteoglycan (PG) versican generated through alternative splicing of the versican gene such that the two major exons coding for sequences in the protein core that support chondroitin sulfate (CS) glycosaminoglycan (GAG) chain attachment are excluded. Thus, versican V3 isoform carries no GAGs. A survey of PubMed reveals only 50 publications specifically on V3 versican, so it is a very understudied member of the versican family, partly because to date there are no antibodies that can distinguish V3 from the CS-carrying isoforms of versican, that is, to facilitate functional and mechanistic studies. However, a number of in vitro and in vivo studies have identified the expression of the V3 transcript during different phases of development and in disease, and selective overexpression of V3 has shown dramatic phenotypic effects in "gain and loss of function" studies in experimental models. Thus, we thought it would be useful and instructive to discuss the discovery, characterization, and the putative biological importance of the enigmatic V3 isoform of versican.
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Affiliation(s)
- Thomas N Wight
- Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, Washington, United States
| | - Anthony J Day
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
| | - Inkyung Kang
- Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, Washington, United States
| | - Ingrid A Harten
- Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, Washington, United States
| | - Gernot Kaber
- Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, Washington, United States
| | - David C Briggs
- Signalling and Structural Biology Laboratory, The Francis Crick Institute, London, United Kingdom
| | - Kathleen R Braun
- Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, Washington, United States
| | - Joan M Lemire
- Department of Biology, Tufts University, Medford, Massachusetts, United States
| | - Michael G Kinsella
- Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, Washington, United States
| | - Aleksander Hinek
- Translational Medicine, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Mervyn J Merrilees
- Department of Anatomy and Medical Imaging, University of Auckland, Auckland, New Zealand
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Ellis MW, Riaz M, Huang Y, Anderson CW, Luo J, Park J, Lopez CA, Batty LD, Gibson KH, Qyang Y. Epigallocatechin gallate facilitates extracellular elastin fiber formation in induced pluripotent stem cell derived vascular smooth muscle cells for tissue engineering. J Mol Cell Cardiol 2022; 163:167-174. [PMID: 34979103 PMCID: PMC8920537 DOI: 10.1016/j.yjmcc.2021.12.014] [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: 08/16/2021] [Revised: 12/22/2021] [Accepted: 12/28/2021] [Indexed: 02/03/2023]
Abstract
Tissue engineered vascular grafts possess several advantages over synthetic or autologous grafts, including increased availability and reduced rates of infection and thrombosis. Engineered grafts constructed from human induced pluripotent stem cell derivatives further offer enhanced reproducibility in graft production. One notable obstacle to clinical application of these grafts is the lack of elastin in the vessel wall, which would serve to endow compliance in addition to mechanical strength. This study establishes the ability of the polyphenol compound epigallocatechin gallate, a principal component of green tea, to facilitate the extracellular formation of elastin fibers in vascular smooth muscle cells derived from human induced pluripotent stem cells. Further, this study describes the creation of a doxycycline-inducible elastin expression system to uncouple elastin production from vascular smooth muscle cell proliferative capacity to permit fiber formation in conditions conducive to robust tissue engineering.
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Affiliation(s)
- Matthew W Ellis
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06511, USA; Yale Stem Cell Center, New Haven, CT 06520, USA; Department of Cellular and Molecular Physiology, Yale University, New Haven, CT 06519, USA
| | - Muhammad Riaz
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06511, USA; Yale Stem Cell Center, New Haven, CT 06520, USA
| | - Yan Huang
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06511, USA; Yale Stem Cell Center, New Haven, CT 06520, USA
| | - Christopher W Anderson
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06511, USA; Yale Stem Cell Center, New Haven, CT 06520, USA; Department of Pathology, Yale University, New Haven, CT 06520, USA
| | - Jiesi Luo
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06511, USA; Yale Stem Cell Center, New Haven, CT 06520, USA
| | - Jinkyu Park
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06511, USA; Yale Stem Cell Center, New Haven, CT 06520, USA
| | - Colleen A Lopez
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06511, USA; Yale Stem Cell Center, New Haven, CT 06520, USA
| | - Luke D Batty
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06511, USA; Yale Stem Cell Center, New Haven, CT 06520, USA; Department of Pathology, Yale University, New Haven, CT 06520, USA
| | - Kimberley H Gibson
- Center for Cellular and Molecular Imaging: Electron Microscopy, Department of Cell Biology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Yibing Qyang
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06511, USA; Yale Stem Cell Center, New Haven, CT 06520, USA; Department of Pathology, Yale University, New Haven, CT 06520, USA; Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520, USA.
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Mohabeer AL, Kroetsch JT, McFadden M, Khosraviani N, Broekelmann TJ, Hou G, Zhang H, Zhou YQ, Wang M, Gramolini AO, Mecham RP, Heximer SP, Bolz SS, Bendeck MP. Deletion of type VIII collagen reduces blood pressure, increases carotid artery functional distensibility and promotes elastin deposition. Matrix Biol Plus 2021; 12:100085. [PMID: 34693248 PMCID: PMC8517381 DOI: 10.1016/j.mbplus.2021.100085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/14/2021] [Accepted: 09/21/2021] [Indexed: 11/19/2022] Open
Abstract
Arterial stiffening is a significant predictor of cardiovascular disease development and mortality. In elastic arteries, stiffening refers to the loss and fragmentation of elastic fibers, with a progressive increase in collagen fibers. Type VIII collagen (Col-8) is highly expressed developmentally, and then once again dramatically upregulated in aged and diseased vessels characterized by arterial stiffening. Yet its biophysical impact on the vessel wall remains unknown. The purpose of this study was to test the hypothesis that Col-8 functions as a matrix scaffold to maintain vessel integrity during extracellular matrix (ECM) development. These changes are predicted to persist into the adult vasculature, and we have tested this in our investigation. Through our in vivo and in vitro studies, we have determined a novel interaction between Col-8 and elastin. Mice deficient in Col-8 (Col8-/-) had reduced baseline blood pressure and increased arterial compliance, indicating an enhanced Windkessel effect in conducting arteries. Differences in both the ECM composition and VSMC activity resulted in Col8-/- carotid arteries that displayed increased crosslinked elastin and functional distensibility, but enhanced catecholamine-induced VSMC contractility. In vitro studies revealed that the absence of Col-8 dramatically increased tropoelastin mRNA and elastic fiber deposition in the ECM, which was decreased with exogenous Col-8 treatment. These findings suggest a causative role for Col-8 in reducing mRNA levels of tropoelastin and the presence of elastic fibers in the matrix. Moreover, we also found that Col-8 and elastin have opposing effects on VSMC phenotype, the former promoting a synthetic phenotype, whereas the latter confers quiescence. These studies further our understanding of Col-8 function and open a promising new area of investigation related to elastin biology.
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Affiliation(s)
- Amanda L. Mohabeer
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ontario, Canada
| | - Jeffrey T. Kroetsch
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ontario, Canada
- Toronto Centre for Microvascular Medicine at TBEP, University of Toronto, Toronto, Ontario, Canada
| | - Meghan McFadden
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ontario, Canada
| | - Negin Khosraviani
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ontario, Canada
| | - Thomas J. Broekelmann
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Guangpei Hou
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ontario, Canada
| | - Hangjun Zhang
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ontario, Canada
| | - Yu-Qing Zhou
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ontario, Canada
| | - Minyao Wang
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ontario, Canada
| | - Anthony O. Gramolini
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ontario, Canada
| | - Robert P. Mecham
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Scott P. Heximer
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ontario, Canada
| | - Steffen-Sebastian Bolz
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ontario, Canada
- Toronto Centre for Microvascular Medicine at TBEP, University of Toronto, Toronto, Ontario, Canada
| | - Michelle P. Bendeck
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ontario, Canada
- Corresponding author at: TBEP, University of Toronto, 661 University Ave, Rm. 1432, Toronto, ON M5G 1M1, Canada.
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Weihermann AC, de Carvalho CM, Schuck DC, Swinka BB, Stuart RM, Graf RM, Lorencini M, Brohem CA. Modulation of Photoaging-Induced Cutaneous Elastin: Evaluation of Gene and Protein Expression of Markers Related to Elastogenesis Under Different Photoexposure Conditions. Dermatol Ther (Heidelb) 2021; 11:2043-2056. [PMID: 34648146 PMCID: PMC8611133 DOI: 10.1007/s13555-021-00603-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 08/21/2021] [Indexed: 01/03/2023] Open
Abstract
INTRODUCTION Photoaging is the process by which ultraviolet rays gradually induce clinical and histological changes in the skin through the production and organization of biological molecules, such as elastin, which is critical to skin strength and elasticity. After exposure to radiation, elastin may undergo alternative mRNA splicing, resulting in modified proteins that contribute to the formation of aging characteristics, such as solar elastosis. The present work aimed to study two different forms of elastin under these conditions: normal elastin and elastin that had been altered in exon 26A. METHODS These different forms of elastin were characterized for gene expression by quantitative real-time polymerase chain reaction (qPCR) and for protein expression by immunohistochemistry of ex vivo skins (from photoexposed and non-photoexposed areas) and in vitro reconstituted skin. In addition, up- and downstream molecules in the elastin signaling cascade were evaluated. RESULTS As a result, a significant increase in the gene expression of elastin 26A was observed in both ex vivo photoexposed skin tissues and the in vitro photoexposed reconstituted skins. Additionally, significant increases in the gene expression levels of matrix metalloproteinase-12 (MMP12) and lysyl oxidase (LOX) were observed in the ex vivo skin model. The evaluation of protein expression levels of some photoaging markers on the reconstituted skin revealed increased tropoelastin and fibrillin-1 expression after photoexposure. CONCLUSION This work contributes to a better understanding of the biological mechanisms involved in photoaging, making it possible to obtain new strategies for the development of dermocosmetic active ingredients to prevent and treat skin aging.
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Affiliation(s)
- Ana Cristina Weihermann
- Department of Research and Innovation, Laboratory of Molecular Biology, Grupo Boticário, Rua Alfredo Pinto, 1500, São José dos Pinhais, Paraná, 83065-150, Brazil. .,Master's Program in Industrial Biotechnology, Universidade Positivo (Universidade Positivo-UP), Curitiba, Paraná, Brazil.
| | - Camila Miranda de Carvalho
- Master's Program in Industrial Biotechnology, Universidade Positivo (Universidade Positivo-UP), Curitiba, Paraná, Brazil
| | - Desirée Cigaran Schuck
- Department of Research and Innovation, Laboratory of Molecular Biology, Grupo Boticário, Rua Alfredo Pinto, 1500, São José dos Pinhais, Paraná, 83065-150, Brazil
| | - Bruna Bastos Swinka
- Department of Research and Innovation, Laboratory of Molecular Biology, Grupo Boticário, Rua Alfredo Pinto, 1500, São José dos Pinhais, Paraná, 83065-150, Brazil
| | - Rodrigo Makowiecky Stuart
- Department of Research and Innovation, Laboratory of Molecular Biology, Grupo Boticário, Rua Alfredo Pinto, 1500, São José dos Pinhais, Paraná, 83065-150, Brazil
| | - Ruth Maria Graf
- Department of Plastic Surgery, Federal University of Paraná (Universidade Federal do Paraná-UFPR), Curitiba, Paraná, Brazil
| | - Márcio Lorencini
- Department of Research and Innovation, Laboratory of Molecular Biology, Grupo Boticário, Rua Alfredo Pinto, 1500, São José dos Pinhais, Paraná, 83065-150, Brazil
| | - Carla Abdo Brohem
- Department of Research and Innovation, Laboratory of Molecular Biology, Grupo Boticário, Rua Alfredo Pinto, 1500, São José dos Pinhais, Paraná, 83065-150, Brazil
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Almeida-González FR, González-Vázquez A, Mithieux SM, O'Brien FJ, Weiss AS, Brougham CM. A step closer to elastogenesis on demand; Inducing mature elastic fibre deposition in a natural biomaterial scaffold. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 120:111788. [PMID: 33545914 DOI: 10.1016/j.msec.2020.111788] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/20/2020] [Accepted: 12/02/2020] [Indexed: 12/28/2022]
Abstract
Elastic fibres play a key role in bodily functions where fatigue resistance and elastic recovery are necessary while regulating phenotype, proliferation and migration in cells. While in vivo elastic fibres are created at a late foetal stage, a major obstacle in the development of engineered tissue is that human vascular smooth muscle cells (hVSMCs), one of the principal elastogenic cells, are unable to spontaneously promote elastogenesis in vitro. Therefore, the overall aim of this study was to activate elastogenesis in vitro by hVSMCs seeded in fibrin, collagen, glycosaminoglycan (FCG) scaffolds, following the addition of recombinant human tropoelastin. This combination of scaffold, tropoelastin and cells induced the deposition of elastin and formation of lamellar maturing elastic fibres, similar to those found in skin, blood vessels and heart valves. Furthermore, higher numbers of maturing branched elastic fibres were synthesised when a higher cell density was used and by drop-loading tropoelastin onto cell-seeded FCG scaffolds prior to adding growth medium. The addition of tropoelastin showed no effect on cell proliferation or mechanical properties of the scaffold which remained dimensionally stable throughout. With these results, we have established a natural biomaterial scaffold that can undergo controlled elastogenesis on demand, suitable for tissue engineering applications.
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Affiliation(s)
- Francisco R Almeida-González
- Biomedical Research Group, School of Mechanical and Design Engineering, Technological University Dublin, Bolton St, Dublin 1, Ireland; Tissue Engineering Research Group, Dept. of Anatomy and Regenerative Medicine, RCSI University of Medicine and Health Sciences, 123 St. Stephen's Green, Dublin 2, Ireland
| | - Arlyng González-Vázquez
- Tissue Engineering Research Group, Dept. of Anatomy and Regenerative Medicine, RCSI University of Medicine and Health Sciences, 123 St. Stephen's Green, Dublin 2, Ireland; Advanced Materials and Bioengineering Research (AMBER) Centre, RCSI, Ireland
| | - Suzanne M Mithieux
- Charles Perkins Centre, University of Sydney, NSW 2006, Australia; School of Life and Environmental Sciences, University of Sydney, NSW 2006, Australia; Bosch Institute, University of Sydney, NSW 2006, Australia
| | - Fergal J O'Brien
- Tissue Engineering Research Group, Dept. of Anatomy and Regenerative Medicine, RCSI University of Medicine and Health Sciences, 123 St. Stephen's Green, Dublin 2, Ireland; Advanced Materials and Bioengineering Research (AMBER) Centre, RCSI, Ireland
| | - Anthony S Weiss
- Charles Perkins Centre, University of Sydney, NSW 2006, Australia; School of Life and Environmental Sciences, University of Sydney, NSW 2006, Australia; Bosch Institute, University of Sydney, NSW 2006, Australia
| | - Claire M Brougham
- Biomedical Research Group, School of Mechanical and Design Engineering, Technological University Dublin, Bolton St, Dublin 1, Ireland; Tissue Engineering Research Group, Dept. of Anatomy and Regenerative Medicine, RCSI University of Medicine and Health Sciences, 123 St. Stephen's Green, Dublin 2, Ireland.
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Yeo GC, Mithieux SM, Weiss AS. The elastin matrix in tissue engineering and regeneration. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2018. [DOI: 10.1016/j.cobme.2018.02.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Merrilees MJ, Zuo N, Evanko SP, Day AJ, Wight TN. G1 Domain of Versican Regulates Hyaluronan Organization and the Phenotype of Cultured Human Dermal Fibroblasts. J Histochem Cytochem 2016; 64:353-63. [PMID: 27126822 PMCID: PMC4888412 DOI: 10.1369/0022155416643913] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 03/17/2016] [Indexed: 12/21/2022] Open
Abstract
Variants of versican have wide-ranging effects on cell and tissue phenotype, impacting proliferation, adhesion, pericellular matrix composition, and elastogenesis. The G1 domain of versican, which contains two Link modules that bind to hyaluronan (HA), may be central to these effects. Recombinant human G1 (rhG1) with an N-terminal 8 amino acid histidine (His) tag, produced in Nicotiana benthamiana, was applied to cultures of dermal fibroblasts, and effects on proliferation and pericellular HA organization determined. rhG1 located to individual strands of cell surface HA which aggregated into structures resembling HA cables. On both individual and aggregated strands, the spacing of attached rhG1 was similar (~120 nm), suggesting interaction between rhG1 molecules. Endogenous V0/V1, present on HA between attached rhG1, did not prevent cable formation, while treatment with V0/V1 alone, which also bound to HA, did not induce cables. A single treatment with rhG1 suppressed cell proliferation for an extended period. Treating cells for 4 weeks with rhG1 resulted in condensed layers of elongated, differentiated α actin-positive fibroblasts, with rhG1 localized to cell surfaces, and a compact extracellular matrix including both collagen and elastin. These results demonstrate that the G1 domain of versican can regulate the organization of pericellular HA and affect phenotype.
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Affiliation(s)
- Mervyn J Merrilees
- Department of Anatomy and Medical Imaging, School of Medical Sciences, University of Auckland, Auckland, New Zealand (MJM,NZ)
| | - Ning Zuo
- Department of Anatomy and Medical Imaging, School of Medical Sciences, University of Auckland, Auckland, New Zealand (MJM,NZ)
| | - Stephen P Evanko
- Matrix Biology Program, Benaroya Research Institute, Seattle, Washington (SPE,TNW)
| | - Anthony J Day
- Wellcome Trust Centre for Cell-Matrix Research, The Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom (AJD)
| | - Thomas N Wight
- Matrix Biology Program, Benaroya Research Institute, Seattle, Washington (SPE,TNW)
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8
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Street M, Thambyah A, Dray M, Amirapu S, Tuari D, Callon KE, McIntosh JD, Burkert K, Dunbar PR, Coleman B, Cornish J, Musson DS. Augmentation with an ovine forestomach matrix scaffold improves histological outcomes of rotator cuff repair in a rat model. J Orthop Surg Res 2015; 10:165. [PMID: 26482900 PMCID: PMC4615320 DOI: 10.1186/s13018-015-0303-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 10/11/2015] [Indexed: 01/08/2023] Open
Abstract
Background Rotator cuff tears can cause significant pain and functional impairment. Without surgical repair, the rotator cuff has little healing potential, and following surgical repair, they are highly prone to re-rupture. Augmenting such repairs with a biomaterial scaffold has been suggested as a potential solution. Extracellular matrix (ECM)-based scaffolds are the most commonly used rotator cuff augments, although to date, reports on their success are variable. Here, we utilize pre-clinical in vitro and in vivo assays to assess the efficacy of a novel biomaterial scaffold, ovine forestomach extracellular matrix (OFM), in augmenting rotator cuff repair. Methods OFM was assessed in vitro for primary tenocyte growth and adherence, and for immunogenicity using an assay of primary human dendritic cell activation. In vivo, using a murine model, supraspinatus tendon repairs were carried out in 34 animals. Augmentation with OFM was compared to sham surgery and unaugmented control. At 6- and 12-week time points, the repairs were analysed biomechanically for strength of repair and histologically for quality of healing. Results OFM supported tenocyte growth in vitro and did not cause an immunogenic response. Augmentation with OFM improved the quality of healing of the repaired tendon, with no evidence of excessive inflammatory response. However, there was no biomechanical advantage of augmentation. Conclusions The ideal rotator cuff tendon augment has not yet been identified or clinically implemented. ECM scaffolds offer a promising solution to a difficult clinical problem. Here, we have shown improved histological healing with OFM augmentation. Identifying materials that offset the poorer mechanical properties of the rotator cuff post-injury/repair and enhance organised tendon healing will be paramount to incorporating augmentation into surgical treatment of the rotator cuff.
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Affiliation(s)
- Matthew Street
- Department of Medicine, The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
| | - Ashvin Thambyah
- Faculty of Engineering, University of Auckland, Auckland, 1142, New Zealand.
| | - Michael Dray
- Waikato District Health Board, Waikato Hospital, Hamilton, 3204, New Zealand.
| | - Satya Amirapu
- Department of Anatomy with Radiology, The University of Auckland, Auckland, 1142, New Zealand.
| | - Donna Tuari
- Department of Medicine, The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
| | - Karen E Callon
- Department of Medicine, The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
| | - Julie D McIntosh
- School of Biological Sciences, The University of Auckland, Auckland, 1142, New Zealand. .,Maurice Wilkins Centre, University of Auckland, Private Bag 92014, Auckland, New Zealand.
| | - Kristina Burkert
- School of Biological Sciences, The University of Auckland, Auckland, 1142, New Zealand. .,Maurice Wilkins Centre, University of Auckland, Private Bag 92014, Auckland, New Zealand.
| | - P Rod Dunbar
- School of Biological Sciences, The University of Auckland, Auckland, 1142, New Zealand. .,Maurice Wilkins Centre, University of Auckland, Private Bag 92014, Auckland, New Zealand.
| | - Brendan Coleman
- Department of Orthopaedics, Middlemore Hospital, Private Bag 93311, Auckland, New Zealand.
| | - Jillian Cornish
- Department of Medicine, The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
| | - David S Musson
- Department of Medicine, The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
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