1
|
Salthouse D, Goulding PD, Reay SL, Jackson EL, Xu C, Ahmed R, Mearns-Spragg A, Novakovic K, Hilkens CMU, Ferreira AM. Amine-reactive crosslinking enhances type 0 collagen hydrogel properties for regenerative medicine. Front Bioeng Biotechnol 2024; 12:1391728. [PMID: 39132253 PMCID: PMC11310005 DOI: 10.3389/fbioe.2024.1391728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 07/12/2024] [Indexed: 08/13/2024] Open
Abstract
Introduction Collagen is extensively utilised in regenerative medicine due to its highly desirable properties. However, collagen is typically derived from mammalian sources, which poses several limitations, including high cost, potential risk of immunogenicity and transmission of infectious diseases, and ethical and religious constraints. Jellyfish-sourced type 0 collagen represents a safer and more environmentally sustainable alternative collagen source. Methods Thus, we investigated the potential of jellyfish collagen-based hydrogels, obtained from Rhizostoma pulmo (R. pulmo) jellyfish, to be utilised in regenerative medicine. A variety of R. pulmo collagen hydrogels (RpCol hydrogels) were formed by adding a range of chemical crosslinking agents and their physicochemical and biological properties were characterised to assess their suitability for regenerative medicine applications. Results and Discussion The characteristic chemical composition of RpCol was confirmed by Fourier-transform infrared spectroscopy (FTIR), and the degradation kinetics, morphological, and rheological properties of RpCol hydrogels were shown to be adaptable through the addition of specific chemical crosslinking agents. The endotoxin levels of RpCol were below the Food and Drug Administration (FDA) limit for medical devices, thus allowing the potential use of RpCol in vivo. 8-arm polyethylene glycol succinimidyl carboxyl methyl ester (PEG-SCM)-crosslinked RpCol hydrogels preserved the viability and induced a significant increase in the metabolic activity of immortalised human mesenchymal stem/stromal cells (TERT-hMSCs), therefore demonstrating their potential to be utilised in a wide range of regenerative medicine applications.
Collapse
Affiliation(s)
- Daniel Salthouse
- School of Engineering, Newcastle University, Newcastle Upon Tyne, United Kingdom
| | - Peter D. Goulding
- School of Engineering, Newcastle University, Newcastle Upon Tyne, United Kingdom
| | - Sophie L. Reay
- School of Engineering, Newcastle University, Newcastle Upon Tyne, United Kingdom
| | - Emma L. Jackson
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Chenlong Xu
- School of Engineering, Newcastle University, Newcastle Upon Tyne, United Kingdom
| | | | | | - Katarina Novakovic
- School of Engineering, Newcastle University, Newcastle Upon Tyne, United Kingdom
| | - Catharien M. U. Hilkens
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Ana Marina Ferreira
- School of Engineering, Newcastle University, Newcastle Upon Tyne, United Kingdom
| |
Collapse
|
2
|
Iida N, Thoreson AR, Reisdorf RL, Tsukamoto I, El Hor H, Zhao C. Relationship Between the Changes of Tendon Elastic Moduli With Ultrasound Shear Wave Elastography and Mechanical Compression Test. ULTRASOUND IN MEDICINE & BIOLOGY 2024; 50:586-591. [PMID: 38272742 DOI: 10.1016/j.ultrasmedbio.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/07/2023] [Accepted: 01/01/2024] [Indexed: 01/27/2024]
Abstract
OBJECTIVE The purpose of this study was to investigate the consistency of the changes in the elastic modulus measured with ultrasound shear wave elastography (SWE) with changes measured through mechanical testing using tendons that were artificially altered by chemical modifications. METHODS Thirty-six canine flexor digitorum profundus tendons were used for this experiment. To mimic tendon mechanical property changes induced by tendinopathy conditions, tendons were treated with collagenase to soften the tissue by collagen digestion or with 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDC) to stiffen the tissues through chemical crosslinking. Tendons were randomly assigned to one of three groups: immersion in phosphate-buffered saline (PBS) as a control group (n = 12), collagenase treatment (n = 12) or EDC treatment (n = 12). Immediately following SWE measurement of each tendon, mechanical compression testing was performed as a gold standard to validate the SWE measurement. Both tests were conducted before and after treatment. RESULTS The compressive modulus and SWE shear modulus significantly decreased after collagenase treatment. Conversely, both moduli significantly increased after EDC treatment. There was no significant difference in either modulus before or after PBS treatment. As a result of a regression analysis with the percentage change of the compressive modulus as the dependent variable and SWE shear modulus as the independent variable, the best-fit regression was found to be an exponential function and the coefficient of determination was 0.687. CONCLUSION The changes in the compressive moduli and SWE shear moduli in tendons induced by chemical treatments were correlated by approximately 70%.
Collapse
Affiliation(s)
- Naoya Iida
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Andrew R Thoreson
- Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA
| | | | - Ichiro Tsukamoto
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Hicham El Hor
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Chunfeng Zhao
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA.
| |
Collapse
|
3
|
Fofiu A, Tripon RG, Băţagă T, Chirilă TV. Exogenous Crosslinking of Tendons as a Strategy for Mechanical Augmentation and Repair: A Narrative Review. Orthop Res Rev 2023; 15:165-173. [PMID: 37637359 PMCID: PMC10455955 DOI: 10.2147/orr.s421106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 08/09/2023] [Indexed: 08/29/2023] Open
Abstract
Collagens constitute a family of triple-helical proteins with a high level of structural polymorphism and a broad diversity of structural and chemical characteristics. Collagens are designed to form supporting aggregates in the extracellular spaces of our body, but they can be isolated from animal sources and processed to become available as biomaterials with wide applications in biomedicine and bioengineering. Collagens can be conveniently modified chemically, and their propensity for participating in crosslinking reactions is an important feature. While the crosslinking promoted by a variety of agents provides a range of collagen-based products, there has been minor interest for therapies based on the crosslinking of collagen while located within living connective tissues, known as exogenous crosslinking. Currently, there is only one such treatment in ocular therapeutics (for keratoconus), and another two in development, all based on mechanical augmentation of tissues due to ultraviolet (UV)-induced crosslinking. As seen in this review, there was some interest to employ exogenous crosslinking in order to reinforce mechanically the lax tendons with an aim to arrest tear propagation, stabilize the tissue, and facilitate the healing. Here we reviewed in details both the early stages and the actual status of the experimental research dedicated to the topic. Many results have not been encouraging, however there is sufficient evidence that tendons can be mechanically reinforced by chemical or photochemical exogenous crosslinking. We also compare the exogenous crosslinking using chemical agents, which was predominant in the literature reviewed, to that promoted by UV radiation, which was rather neglected but might have some advantages.
Collapse
Affiliation(s)
- Alexandru Fofiu
- Department of Orthopedics-Traumatology, Emergency County Hospital Bistriţa, Bistriţa Năsăud, Romania
- School of Medicine, George Emil Palade University of Medicine, Pharmacy, Science, and Technology, Târgu Mureş, Romania
| | - Robert G Tripon
- Department of Ophthalmology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology, Târgu Mureş, Romania
| | - Tiberiu Băţagă
- Department of Orthopedics-Traumatology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology, Târgu Mureş, Romania
| | - Traian V Chirilă
- School of Medicine, George Emil Palade University of Medicine, Pharmacy, Science, and Technology, Târgu Mureş, Romania
- Department of Research, Queensland Eye Institute, South Brisbane, QLD, Australia
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD, Australia
- Australian Institute of Bioengineering and Nanotechnology, University of Queensland, St Lucia, QLD, Australia
- School of Molecular Science, University of Western Australia, Crawley, WA, Australia
| |
Collapse
|
4
|
Adjei-Sowah E, Benoit DSW, Loiselle AE. Drug Delivery Approaches to Improve Tendon Healing. TISSUE ENGINEERING. PART B, REVIEWS 2023; 29:369-386. [PMID: 36888543 PMCID: PMC10442691 DOI: 10.1089/ten.teb.2022.0188] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 01/18/2023] [Indexed: 03/09/2023]
Abstract
Tendon injuries disrupt the transmission of forces from muscle to bone, leading to chronic pain, disability, and a large socioeconomic burden. Tendon injuries are prevalent; there are over 300,000 tendon repair procedures a year in the United States to address acute trauma or chronic tendinopathy. Successful restoration of function after tendon injury remains challenging clinically. Despite improvements in surgical and physical therapy techniques, the high complication rate of tendon repair procedures motivates the use of therapeutic interventions to augment healing. While many biological and tissue engineering approaches have attempted to promote scarless tendon healing, there is currently no standard clinical treatment to improve tendon healing. Moreover, the limited efficacy of systemic delivery of several promising therapeutic candidates highlights the need for tendon-specific drug delivery approaches to facilitate translation. This review article will synthesize the current state-of-the-art methods that have been used for tendon-targeted delivery through both systemic and local treatments, highlight emerging technologies used for tissue-specific drug delivery in other tissue systems, and outline future challenges and opportunities to enhance tendon healing through targeted drug delivery.
Collapse
Affiliation(s)
- Emmanuela Adjei-Sowah
- Department of Biomedical Engineering and University of Rochester, Rochester, New York, USA
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York, USA
| | - Danielle S. W. Benoit
- Department of Biomedical Engineering and University of Rochester, Rochester, New York, USA
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York, USA
- Cell Biology of Disease Program, University of Rochester, Rochester, New York, USA
- Department of Chemical Engineering, University of Rochester, Rochester, New York, USA
- Materials Science Program, University of Rochester, Rochester, New York, USA
- Knight Campus Department of Bioengineering, University of Oregon, Eugene, Oregan, USA
| | - Alayna E. Loiselle
- Department of Biomedical Engineering and University of Rochester, Rochester, New York, USA
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York, USA
- Cell Biology of Disease Program, University of Rochester, Rochester, New York, USA
| |
Collapse
|
5
|
Dong C, Gingery A, Amadio PC, An KN, Moran SL, Zhao C. Apoptotic Body-Rich Media from Tenocytes Enhance Proliferation and Migration of Tenocytes and Bone Marrow Stromal Cells. Int J Mol Sci 2022; 23:11475. [PMID: 36232777 PMCID: PMC9569589 DOI: 10.3390/ijms231911475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/24/2022] [Accepted: 09/26/2022] [Indexed: 11/26/2022] Open
Abstract
The intrinsic healing following tendon injury is ideal, in which tendon progenitor cells proliferate and migrate to the injury site to directly bridge or regenerate tendon tissue. However, the mechanism determining why and how those cells are attracted to the injury site for tendon healing is not understood. Since the tenocytes near the injury site go through apoptosis or necrosis following injury, we hypothesized that secretions from injured tenocytes might have biological effects on cell proliferation and migration to enhance tendon healing. Tenocyte apoptosis was induced by 24 h cell starvation. Apoptotic body-rich media (T-ABRM) and apoptotic body-depleted media (T-ABDM) were collected from culture media after centrifuging. Tenocytes and bone marrow-derived stem cells (BMDSCs) were isolated and cultured with the following four media: (1) T-ABRM, (2) T-ABDM, (3) GDF-5, or (4) basal medium with 2% fetal calf serum (FCS). The cell activities and functions were evaluated. Both T-ABRM and T-ABDM treatments significantly stimulated the cell proliferation, migration, and extracellular matrix synthesis for both tenocytes and BMDSCs compared to the control groups (GDF-5 and basal medium). However, cell proliferation, migration, and extracellular matrix production of T-ABRM-treated cells were significantly higher than the T-ABDM, which indicates the apoptotic bodies are critical for cell activities. Our study revealed the possible mechanism of the intrinsic healing of the tendon in which apoptotic bodies, in the process of apoptosis, following tendon injury promote tenocyte and stromal cell proliferation, migration, and production. Future studies should analyze the components of the apoptotic bodies that play this role, and, thus, the targeting of therapeutics can be developed.
Collapse
Affiliation(s)
- Chenhui Dong
- Biomechanics & Tendon and Soft Tissue Biology Laboratories, Division of Orthopedic Research, Mayo Clinic, Rochester, MN 55905, USA
- Department of Sports medicine, The 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou 730050, China
| | - Anne Gingery
- Biomechanics & Tendon and Soft Tissue Biology Laboratories, Division of Orthopedic Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Peter C Amadio
- Biomechanics & Tendon and Soft Tissue Biology Laboratories, Division of Orthopedic Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Kai-Nan An
- Biomechanics & Tendon and Soft Tissue Biology Laboratories, Division of Orthopedic Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Steven L Moran
- Biomechanics & Tendon and Soft Tissue Biology Laboratories, Division of Orthopedic Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Chunfeng Zhao
- Biomechanics & Tendon and Soft Tissue Biology Laboratories, Division of Orthopedic Research, Mayo Clinic, Rochester, MN 55905, USA
| |
Collapse
|
6
|
Muñoz M, Eren Cimenci C, Goel K, Comtois-Bona M, Hossain M, McTiernan C, Zuñiga-Bustos M, Ross A, Truong B, Davis DR, Liang W, Rotstein B, Ruel M, Poblete H, Suuronen EJ, Alarcon EI. Nanoengineered Sprayable Therapy for Treating Myocardial Infarction. ACS NANO 2022; 16:3522-3537. [PMID: 35157804 DOI: 10.1021/acsnano.1c08890] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We report the development, as well as the in vitro and in vivo testing, of a sprayable nanotherapeutic that uses surface engineered custom-designed multiarmed peptide grafted nanogold for on-the-spot coating of an infarcted myocardial surface. When applied to mouse hearts, 1 week after infarction, the spray-on treatment resulted in an increase in cardiac function (2.4-fold), muscle contractility, and myocardial electrical conductivity. The applied nanogold remained at the treatment site 28 days postapplication with no off-target organ infiltration. Further, the infarct size in the mice that received treatment was found to be <10% of the total left ventricle area, while the number of blood vessels, prohealing macrophages, and cardiomyocytes increased to levels comparable to that of a healthy animal. Our cumulative data suggest that the therapeutic action of our spray-on nanotherapeutic is highly effective, and in practice, its application is simpler than other regenerative approaches for treating an infarcted heart.
Collapse
Affiliation(s)
- Marcelo Muñoz
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Cagla Eren Cimenci
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Keshav Goel
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Maxime Comtois-Bona
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Mahir Hossain
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Christopher McTiernan
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Matias Zuñiga-Bustos
- Departamento de Bioinformática, Centro de Bioinformática, Simulación y Modelado (CBSM), Facultad de Ingeniería, Universidad de Talca, Campus Talca, 2 Norte 685, 3460000, Talca, Chile
| | - Alex Ross
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Brenda Truong
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Darryl R Davis
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, Ontario K1Y 4W7, Canada
- Cardiac Electrophysiology Lab, University of Ottawa, Ottawa, Ontario K1Y 4W7, Canada
| | - Wenbin Liang
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, Ontario K1Y 4W7, Canada
- Cardiac Electrophysiology Lab, University of Ottawa, Ottawa, Ontario K1Y 4W7, Canada
| | - Benjamin Rotstein
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
- Molecular Imaging Probes and Radiochemistry Laboratory, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada
| | - Marc Ruel
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Horacio Poblete
- Departamento de Bioinformática, Centro de Bioinformática, Simulación y Modelado (CBSM), Facultad de Ingeniería, Universidad de Talca, Campus Talca, 2 Norte 685, 3460000, Talca, Chile
- Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Universidad de Talca, 2 Norte 685, 3460000 Talca, Chile
| | - Erik J Suuronen
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Emilio I Alarcon
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
- Molecular Imaging Probes and Radiochemistry Laboratory, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada
| |
Collapse
|
7
|
Navarro J, Korcari A, Nguyen P, Bah I, AlKhalifa A, Fink S, Buckley M, Kuo CK. Method development and characterization of chick embryo tendon mechanical properties. J Biomech 2022; 133:110970. [PMID: 35123205 PMCID: PMC11416868 DOI: 10.1016/j.jbiomech.2022.110970] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 01/10/2022] [Accepted: 01/21/2022] [Indexed: 12/16/2022]
Abstract
Tendons are involved in multiple disorders and injuries, ranging from birth deformities to tendinopathies to acute ruptures. The ability to characterize embryonic tendon mechanical properties will enable elucidation of mechanisms responsible for functional tendon formation. In turn, an understanding of tendon development could inform approaches for adult and embryonic tendon tissue engineering and regenerative medicine. The chick embryo is a scientifically relevant model that we have been using to study Achilles (calcaneal) tendon development. Chick embryo calcaneal tendons are challenging to mechanically test due to small size and delicate nature, and difficulty distinguishing embryonic tendons from muscle and fibrocartilage using the naked eye. Here, we developed and implemented a "marking protocol" to identify and isolate calcaneal tendons at different stages of chick embryonic development. Mechanical testing of tendons isolated using the marking protocol revealed trends in mechanical property development that were not observed with tendons isolated by naked eye (eyeballing). Marked tendons exhibited non-linear increases in tensile modulus and ultimate tensile strength, whereas eyeballed tendons exhibited linear increases in the same properties, reflecting a need for the marking protocol. Furthermore, the tensile mechanical properties characterized for marked tendons are consistent with previously reported trends in cell length-scale mechanical properties measured using atomic force microscopy. This report establishes new methodology to enable tensile testing of chick embryo tendons and provides new information about embryonic tendon mechanical property development.
Collapse
Affiliation(s)
- Javier Navarro
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, United States; Department of Biomedical Engineering, University of Rochester, NY, United States; Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, United States
| | - Antonion Korcari
- Department of Biomedical Engineering, University of Rochester, NY, United States; Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, United States
| | - Phong Nguyen
- Department of Biomedical Engineering, University of Rochester, NY, United States; Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, United States
| | - Ibrahima Bah
- Department of Biomedical Engineering, University of Rochester, NY, United States; Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, United States
| | | | - Spencer Fink
- Department of Biomedical Engineering, University of Rochester, NY, United States
| | - Mark Buckley
- Department of Biomedical Engineering, University of Rochester, NY, United States; Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, United States
| | - Catherine K Kuo
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, United States; Department of Biomedical Engineering, University of Rochester, NY, United States; Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, United States; Department of Orthopaedics, University of Rochester Medical Center, Rochester, NY, United States; Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, MD, United States.
| |
Collapse
|
8
|
Corrie JL, Duffy DJ, Chang YJ, Moore GE. Effect of knot location on the biomechanical strength and gapping characteristics of ex vivo canine gastrocnemius tenorrhaphy constructs. Am J Vet Res 2021; 82:942-947. [PMID: 34727071 DOI: 10.2460/ajvr.21.03.0038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To evaluate the effect of knot location on the biomechanical strength and gapping characteristics of ex vivo canine gastrocnemius tenorrhaphy constructs. SAMPLE 36 cadaveric gastrocnemius tendons from 18 adult dogs. PROCEDURES Tendons were randomly assigned to 3 groups (12 tendons/group) and sharply transected and repaired by means of a core locking-loop suture with the knot at 1 of 3 locations (exposed on the external surface of the tendon, buried just underneath the external surface of the tendon, or buried internally between the apposed tendon ends). All repairs were performed with size-0 polypropylene suture. All constructs underwent a single load-to-failure test. Yield, failure, and peak forces, mode of failure, and forces required for 1- and 3-mm gap formation were compared among the 3 knot-location groups. RESULTS Mean yield, failure, and peak forces and mean forces required for 1- and 3-mm gap formation did not differ significantly among the 3 groups. The mode of failure also did not differ significantly among the 3 groups, and the majority (33/36 [92%]) of constructs failed owing to the suture pulling through the tendinous substance. CONCLUSIONS AND CLINICAL RELEVANCE Final knot location did not significantly affect the biomechanical strength and gapping characteristics of canine gastrocnemius tenorrhaphy constructs. Therefore, all 3 evaluated knot locations may be acceptable for tendon repair in dogs. In vivo studies are necessary to further elucidate the effect of knot location in suture patterns commonly used for tenorrhaphy on tendinous healing and collagenous remodeling at the repair site.
Collapse
Affiliation(s)
- Jessica L Corrie
- From VCA Aurora Animal Hospital, Aurora, IL 60506 (Corrie); Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607 (Duffy, Chang); and Veterinary Administration, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47906 (Moore)
| | - Daniel J Duffy
- From VCA Aurora Animal Hospital, Aurora, IL 60506 (Corrie); Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607 (Duffy, Chang); and Veterinary Administration, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47906 (Moore)
| | - Yi-Jen Chang
- From VCA Aurora Animal Hospital, Aurora, IL 60506 (Corrie); Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607 (Duffy, Chang); and Veterinary Administration, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47906 (Moore)
| | - George E Moore
- From VCA Aurora Animal Hospital, Aurora, IL 60506 (Corrie); Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607 (Duffy, Chang); and Veterinary Administration, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47906 (Moore)
| |
Collapse
|
9
|
Jellyfish Collagen: A Biocompatible Collagen Source for 3D Scaffold Fabrication and Enhanced Chondrogenicity. Mar Drugs 2021; 19:md19080405. [PMID: 34436244 PMCID: PMC8400217 DOI: 10.3390/md19080405] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/11/2021] [Accepted: 07/13/2021] [Indexed: 02/03/2023] Open
Abstract
Osteoarthritis (OA) is a multifactorial disease leading to degeneration of articular cartilage, causing morbidity in approximately 8.5 million of the UK population. As the dense extracellular matrix of articular cartilage is primarily composed of collagen, cartilage repair strategies have exploited the biocompatibility and mechanical strength of bovine and porcine collagen to produce robust scaffolds for procedures such as matrix-induced chondrocyte implantation (MACI). However, mammalian sourced collagens pose safety risks such as bovine spongiform encephalopathy, transmissible spongiform encephalopathy and possible transmission of viral vectors. This study characterised a non-mammalian jellyfish (Rhizostoma pulmo) collagen as an alternative, safer source in scaffold production for clinical use. Jellyfish collagen demonstrated comparable scaffold structural properties and stability when compared to mammalian collagen. Jellyfish collagen also displayed comparable immunogenic responses (platelet and leukocyte activation/cell death) and cytokine release profile in comparison to mammalian collagen in vitro. Further histological analysis of jellyfish collagen revealed bovine chondroprogenitor cell invasion and proliferation in the scaffold structures, where the scaffold supported enhanced chondrogenesis in the presence of TGFβ1. This study highlights the potential of jellyfish collagen as a safe and biocompatible biomaterial for both OA repair and further regenerative medicine applications.
Collapse
|
10
|
Thiolation and characterization of regenerated Bombyx mori silk fibroin films with reduced glutathione. BMC Chem 2019; 13:62. [PMID: 31384810 PMCID: PMC6661838 DOI: 10.1186/s13065-019-0583-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 05/02/2019] [Indexed: 01/26/2023] Open
Abstract
Bombyxmori silk fibroin-based materials have good biocompatibility and biodegradability. In order to maximize their utility while maintain appropriate features, silk fibroin (SF) films were modified with reduced glutathione (GSH) (NH2)–ECG–(COOH), using the carbodiimide chemistry method, for the introduction of thiol groups onto surfaces. The effects of this modification on SF films’ chemical and physical properties, and cytotoxicity were assessed. The chemical and elemental composition analysis results suggested that reduced glutathione (GSH) was covalently coupled onto the surface of silk fibroin films. Atomic force microscopy (AFM) results indicated the surface roughness of silk fibroin film was increased after the modification by GSH. The GSH-modified silk fibroin films also showed the smaller contact angle due to the hydrophilic peptides coupled on the film surface. Through MTT assay, it was shown that the chemically modified SF film was not cytotoxic to HEK293 cells, and it had no adverse influence on the growth of HEK293 cells. Our approach provides a new option to engineer SF-based material surface with thiol groups in order to allow for secondary reactions and holds great promise for applications of SF-based materials in the biomedical field.
Collapse
|
11
|
Linderman SW, Gelberman RH, Thomopoulos S, Shen H. Cell and Biologic-Based Treatment of Flexor Tendon Injuries. ACTA ACUST UNITED AC 2016; 26:206-215. [PMID: 28042226 DOI: 10.1053/j.oto.2016.06.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The two primary factors leading to poor clinical results after intrasynovial tendon repair are adhesion formation within the digital sheath and repair-site elongation and rupture. As the outcomes following modern tendon multi-strand repair and controlled rehabilitation techniques are often unsatisfactory, alternative approaches, such as the application of growth factors and mesenchymal stem cells (MSCs), have become increasingly attractive treatment options. Successful biological therapies require carefully controlled spatiotemporal delivery of cells, growth factors, and biocompatible scaffold matrices in order to simultaneously (1) promote matrix synthesis at the tendon repair site leading to increased biomechanical strength and stiffness and (2) suppress matrix synthesis along the tendon surface and synovial sheath preventing adhesion formation. This review summarizes recent cell and biologic-based experimental treatments for flexor tendon injury, with an emphasis on large animal translational studies.
Collapse
Affiliation(s)
- Stephen W Linderman
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO, United States; Department of Biomedical Engineering, Washington University, St. Louis, MO, United States
| | - Richard H Gelberman
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO, United States
| | - Stavros Thomopoulos
- Department of Orthopaedic Surgery, Columbia University, New York, NY, United States; Department of Biomedical Engineering, Columbia University, New York, NY, United States
| | - Hua Shen
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO, United States
| |
Collapse
|
12
|
Sundararaj S, Slusarewicz P, Brown M, Hedman T. Genipin crosslinker releasing sutures for improving the mechanical/repair strength of damaged connective tissue. J Biomed Mater Res B Appl Biomater 2016; 105:2199-2205. [DOI: 10.1002/jbm.b.33753] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 05/31/2016] [Accepted: 06/26/2016] [Indexed: 01/12/2023]
Affiliation(s)
| | | | | | - Thomas Hedman
- Orthopeutics, L.P.; Lexington Kentucky
- Department of Biomedical Engineering; University of Kentucky; Lexington Kentucky
| |
Collapse
|