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Alkaissy R, Richard M, Morris H, Snelling S, Pinchbeck H, Carr A, Mouthuy PA. Manufacture of Soft-Hard Implants from Electrospun Filaments Embedded in 3D Printed Structures. Macromol Biosci 2022; 22:e2200156. [PMID: 36048528 DOI: 10.1002/mabi.202200156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 08/14/2022] [Indexed: 01/15/2023]
Abstract
Rotator cuff tendon tears are common injuries of the musculoskeletal system that often require surgical repair. However, re-tearing following repair is a significant clinical problem, with a failure rate of up to 40%, notably at the transition from bone to tendon. The development of biphasic materials consisting of soft and hard components, which can mimic this interface, is therefore promising. Here, a simple manufacturing approach is proposed that combines electrospun filaments and 3D printing to achieve scaffolds made of a soft polydioxanone cuff embedded in a porous polycaprolactone block. The insertion area of the cuff is based on the supraspinatus tendon footprint and the size of the cuff is scaled up from 9 to 270 electrospun filaments to reach a clinically relevant strength of 227N on average. The biological evaluation shows that the biphasic scaffold components are noncytotoxic, and that tendon and bone cells can be grown on the cuff and block, respectively. Overall, these results indicate that combining electrospinning and 3D printing is a feasible and promising approach to create soft-to-hard biphasic scaffolds that can improve the outcomes of rotator cuff repair.
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Affiliation(s)
- Rand Alkaissy
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Michael Richard
- 3D LifePrints UK Ltd, Nuffield Orthopaedic Centre, Old Road, Oxford, OX3 7LD, United Kingdom
| | - Hayley Morris
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Sarah Snelling
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Henry Pinchbeck
- 3D LifePrints UK Ltd, Nuffield Orthopaedic Centre, Old Road, Oxford, OX3 7LD, United Kingdom
| | - Andrew Carr
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Pierre-Alexis Mouthuy
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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Wu S, Dong T, Li Y, Sun M, Qi Y, Liu J, Kuss MA, Chen S, Duan B. State-of-the-art review of advanced electrospun nanofiber yarn-based textiles for biomedical applications. APPLIED MATERIALS TODAY 2022; 27:101473. [PMID: 35434263 PMCID: PMC8994858 DOI: 10.1016/j.apmt.2022.101473] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/23/2022] [Accepted: 03/31/2022] [Indexed: 05/02/2023]
Abstract
The pandemic of the coronavirus disease 2019 (COVID-19) has made biotextiles, including face masks and protective clothing, quite familiar in our daily lives. Biotextiles are one broad category of textile products that are beyond our imagination. Currently, biotextiles have been routinely utilized in various biomedical fields, like daily protection, wound healing, tissue regeneration, drug delivery, and sensing, to improve the health and medical conditions of individuals. However, these biotextiles are commonly manufactured with fibers with diameters on the micrometer scale (> 10 μm). Recently, nanofibrous materials have aroused extensive attention in the fields of fiber science and textile engineering because the fibers with nanoscale diameters exhibited obviously superior performances, such as size and surface/interface effects as well as optical, electrical, mechanical, and biological properties, compared to microfibers. A combination of innovative electrospinning techniques and traditional textile-forming strategies opens a new window for the generation of nanofibrous biotextiles to renew and update traditional microfibrous biotextiles. In the last two decades, the conventional electrospinning device has been widely modified to generate nanofiber yarns (NYs) with the fiber diameters less than 1000 nm. The electrospun NYs can be further employed as the primary processing unit for manufacturing a new generation of nano-textiles using various textile-forming strategies. In this review, starting from the basic information of conventional electrospinning techniques, we summarize the innovative electrospinning strategies for NY fabrication and critically discuss their advantages and limitations. This review further covers the progress in the construction of electrospun NY-based nanotextiles and their recent applications in biomedical fields, mainly including surgical sutures, various scaffolds and implants for tissue engineering, smart wearable bioelectronics, and their current and potential applications in the COVID-19 pandemic. At the end, this review highlights and identifies the future needs and opportunities of electrospun NYs and NY-based nanotextiles for clinical use.
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Key Words
- CNT, carbon nanotube
- COVID-19, coronavirus disease 2019
- ECM, extracellular matrix
- Electrospinning
- FDA, food and drug administration
- GF, gauge factor
- GO, graphene oxide
- HAVIC, human aortic valve interstitial cell
- HAp, hydroxyapatite
- MSC, mesenchymal stem cell
- MSC-SC, MSC derived Schwann cell-like cell
- MWCNT, multiwalled carbon nanotube
- MY, microfiber yarn
- MeGel, methacrylated gelatin
- NGC, nerve guidance conduit
- NHMR, neutral hollow metal rod
- NMD, neutral metal disc
- NY, nanofiber yarn
- Nanoyarns
- PA6, polyamide 6
- PA66, polyamide 66
- PAN, polyacrylonitrile
- PANi, polyaniline
- PCL, polycaprolactone
- PEO, polyethylene oxide
- PGA, polyglycolide
- PHBV, poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
- PLCL, poly(L-lactide-co-ε-caprolactone)
- PLGA, poly(lactic-co-glycolic acid)
- PLLA, poly(L-lactic acid)
- PMIA, poly(m-phenylene isophthalamide)
- PPDO, polydioxanone
- PPy, polypyrrole
- PSA, poly(sulfone amide)
- PU, polyurethane
- PVA, poly(vinyl alcohol)
- PVAc, poly(vinyl acetate)
- PVDF, poly(vinylidene difluoride)
- PVDF-HFP, poly(vinylidene floride-co-hexafluoropropylene)
- PVDF-TrFE, poly(vinylidene fluoride trifluoroethylene)
- PVP, poly(vinyl pyrrolidone)
- SARS-CoV-2, severe acute respiratory syndrome coronavirus 2
- SC, Schwann cell
- SF, silk fibroin
- SWCNT, single-walled carbon nanotube
- TGF-β1, transforming growth factor-β1
- Textile-forming technique
- Tissue scaffolds
- VEGF, vascular endothelial growth factor
- Wearable bioelectronics
- bFGF, basic fibroblast growth factor
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Affiliation(s)
- Shaohua Wu
- College of Textiles & Clothing, Qingdao University, Qingdao, China
| | - Ting Dong
- College of Textiles & Clothing, Qingdao University, Qingdao, China
| | - Yiran Li
- College of Textiles & Clothing, Qingdao University, Qingdao, China
| | - Mingchao Sun
- College of Textiles & Clothing, Qingdao University, Qingdao, China
| | - Ye Qi
- College of Textiles & Clothing, Qingdao University, Qingdao, China
| | - Jiao Liu
- College of Textiles & Clothing, Qingdao University, Qingdao, China
| | - Mitchell A Kuss
- Mary & Dick Holland Regenerative Medicine Program and Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Surgery, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Shaojuan Chen
- College of Textiles & Clothing, Qingdao University, Qingdao, China
| | - Bin Duan
- Mary & Dick Holland Regenerative Medicine Program and Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Surgery, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA
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Savić L, Augustyniak EM, Kastensson A, Snelling S, Abhari RE, Baldwin M, Price A, Jackson W, Carr A, Mouthuy PA. Early development of a polycaprolactone electrospun augment for anterior cruciate ligament reconstruction. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112414. [PMID: 34579923 DOI: 10.1016/j.msec.2021.112414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/23/2021] [Accepted: 08/31/2021] [Indexed: 11/28/2022]
Abstract
Despite the clinical success of Anterior Cruciate Ligament reconstruction (ACLR) in some patients, unsatisfactory clinical outcomes secondary to graft failure are seen, indicating the need to develop new regeneration strategies. The use of degradable and bioactive textiles has the potential to improve the biological repair of soft tissue. Electrospun (ES) filaments are particularly promising as they have the ability to mimic the structure of natural tissues and influence endogenous cell behaviour. In this study, we produced continuous polycaprolactone (PCL) ES filaments using a previously described electrospinning collection method. These filaments were stretched, twisted, and assembled into woven structures. The morphological, tensile, and biological properties of the woven fabric were then assessed. Scanning electron microscopy (SEM) images highlighted the aligned and ACL-like microfibre structure found in the stretched filaments. The tensile properties indicated that the ES fabric reached suitable strengths for a use as an ACLR augmentation device. Human ACL-derived cell cultured on the fabric showed approximately a 3-fold increase in cell number over 2 weeks and this was equivalent to a collagen coated synthetic suture commonly used in ACLR. Cells generally adopted a more elongated cell morphology on the ES fabric compared to the control suture, aligning themselves in the direction of the microfibres. A NRU assay confirmed that the ES fabric was non-cytotoxic according to regulatory standards. Overall, this study supports the development of ES textiles as augmentation devices for ACLR.
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Affiliation(s)
- Luka Savić
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Edyta M Augustyniak
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Adele Kastensson
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Sarah Snelling
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Roxanna E Abhari
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Mathew Baldwin
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK; Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Andrew Price
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK; Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, UK
| | - William Jackson
- Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Andrew Carr
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK; Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Pierre-Alexis Mouthuy
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK.
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Nezhentsev A, Abhari RE, Baldwin MJ, Mimpen JY, Augustyniak E, Isaacs M, Mouthuy PA, Carr AJ, Snelling SJB. In vitro evaluation of the response of human tendon-derived stromal cells to a novel electrospun suture for tendon repair. TRANSLATIONAL SPORTS MEDICINE 2021; 4:409-418. [PMID: 35571511 PMCID: PMC7612718 DOI: 10.1002/tsm2.233] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Recurrent tears after surgical tendon repair remain common. Repair failures can be partly attributed to the use of sutures not designed for the tendon cellular niche nor for the promotion of repair processes. Synthetic electrospun materials can mechanically support the tendon whilst providing topographical cues that regulate cell behaviour. Here, a novel electrospun suture made from twisted polydioxanone (PDO) polymer filaments is compared to PDS II, a clinically-used PDO suture currently utilised in tendon repair. We evaluated the ability of these sutures to support the attachment and proliferation of human tendon-derived stromal cells using PrestoBlue and Scanning Electron Microscopy. Suture surface chemistry was analysed using X-ray Photoelectron Spectroscopy. Bulk RNA-Seq interrogated the transcriptional response of primary tendon-derived stromal cells to sutures after 14 days. Electrospun suture showed increased initial cell attachment and a stronger transcriptional response compared to PDS II, with relative enrichment of pathways including mTorc1 signalling and depletion of epithelial mesenchymal transition. Neither suture induced transcriptional upregulation of inflammatory pathways compared to baseline. Twisted electrospun sutures therefore show promise in improving outcomes in surgical tendon repair by allowing increased cell attachment whilst maintaining an appropriate tissue response.
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Affiliation(s)
- Andrey Nezhentsev
- Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Roxanna E Abhari
- Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Mathew J Baldwin
- Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Jolet Y Mimpen
- Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Edyta Augustyniak
- Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Mark Isaacs
- Department of Chemistry, University College London, 20 Gordon St, Bloomsbury, London WC1H 0AJ
- HarwellXPS, Research Complex at Harwell, Rutherford Appleton Laboratories, Harwell Campus, OX11 0DE
| | - Pierre-Alexis Mouthuy
- Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Andrew J Carr
- Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Sarah J B Snelling
- Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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