1
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Khandelia R, Hodgkinson T, Crean D, Brougham DF, Scholz D, Ibrahim H, Quinn SJ, Rodriguez BJ, Kennedy OD, O’Byrne JM, Brayden DJ. Reproducible Synthesis of Biocompatible Albumin Nanoparticles Designed for Intra-articular Administration of Celecoxib to Treat Osteoarthritis. ACS Appl Mater Interfaces 2024; 16:14633-14644. [PMID: 38483312 PMCID: PMC10982941 DOI: 10.1021/acsami.4c02243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 04/04/2024]
Abstract
Osteoarthritis (OA) is the most common form of arthritis, with intra-articular (IA) delivery of therapeutics being the current best option to treat pain and inflammation. However, IA delivery is challenging due to the rapid clearance of therapeutics from the joint and the need for repeated injections. Thus, there is a need for long-acting delivery systems that increase the drug retention time in joints with the capacity to penetrate OA cartilage. As pharmaceutical utility also demands that this is achieved using biocompatible materials that provide colloidal stability, our aim was to develop a nanoparticle (NP) delivery system loaded with the COX-2 inhibitor celecoxib that can meet these criteria. We devised a reproducible and economical method to synthesize the colloidally stable albumin NPs loaded with celecoxib without the use of any of the following conditions: high temperatures at which albumin denaturation occurs, polymer coatings, oils, Class 1/2 solvents, and chemical protein cross-linkers. The spherical NP suspensions were biocompatible, monodisperse with average diameters of 72 nm (ideal for OA cartilage penetration), and they were stable over 6 months at 4 °C. Moreover, the NPs loaded celecoxib at higher levels than those required for the therapeutic response in arthritic joints. For these reasons, they are the first of their kind. Labeled NPs were internalized by primary human articular chondrocytes cultured from the knee joints of OA patients. The NPs reduced the concentration of inflammatory mediator prostaglandin E2 released by the primaries, an indication of retained bioactivity following NP synthesis. Similar results were observed in lipopolysaccharide-stimulated human THP-1 monocytes. The IA administration of these NPs is expected to avoid side-effects associated with oral administration of celecoxib and to maintain a high local concentration in the knee joint over a sustained period. They are now ready for evaluation by IA administration in animal models of OA.
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Affiliation(s)
- Rumi Khandelia
- UCD
School of Veterinary Medicine, University
College Dublin, Belfield, Dublin D04 V1W8, Ireland
- UCD
Conway Institute, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - Tom Hodgkinson
- Department
of Anatomy and Regenerative Medicine, Royal
College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin D02 YN77, Ireland
| | - Daniel Crean
- UCD
School of Veterinary Medicine, University
College Dublin, Belfield, Dublin D04 V1W8, Ireland
- UCD
Conway Institute, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - Dermot F. Brougham
- UCD
School of Chemistry, University College
Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - Dimitri Scholz
- UCD
Conway Institute, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - Hossam Ibrahim
- UCD
Conway Institute, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
- UCD
School of Physics, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - Susan J. Quinn
- UCD
School of Chemistry, University College
Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - Brian J. Rodriguez
- UCD
Conway Institute, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
- UCD
School of Physics, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - Oran D. Kennedy
- Department
of Anatomy and Regenerative Medicine, Royal
College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin D02 YN77, Ireland
| | - John M. O’Byrne
- National
Orthopaedics Hospital Cappagh, Dublin D11 EV29, Ireland
| | - David J. Brayden
- UCD
School of Veterinary Medicine, University
College Dublin, Belfield, Dublin D04 V1W8, Ireland
- UCD
Conway Institute, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
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2
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O'Shea DG, Hodgkinson T, Curtin CM, O'Brien FJ. An injectable and 3D printable pro-chondrogenic hyaluronic acid and collagen type II composite hydrogel for the repair of articular cartilage defects. Biofabrication 2023; 16:015007. [PMID: 37852239 DOI: 10.1088/1758-5090/ad047a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 10/18/2023] [Indexed: 10/20/2023]
Abstract
Current treatments for repairing articular cartilage defects are limited. However, pro-chondrogenic hydrogels formulated using articular cartilage matrix components (such as hyaluronic acid (HA) and collagen type II (Col II)), offer a potential solution if they could be injected into the defect via minimally invasive arthroscopic procedures, or used as bioinks to 3D print patient-specific customised regenerative scaffolds-potentially combined with cells. However, HA and Col II are difficult to incorporate into injectable/3D printable hydrogels due to poor physicochemical properties. This study aimed to overcome this by developing an articular cartilage matrix-inspired pro-chondrogenic hydrogel with improved physicochemical properties for both injectable and 3D printing (3DP) applications. To achieve this, HA was methacrylated to improve mechanical properties and mixed in a 1:1 ratio with Col I, a Col I/Col II blend or Col II. Col I possesses superior mechanical properties to Col II and so was hypothesised to enhance hydrogel mechanical properties. Rheological analysis showed that the pre-gels had viscoelastic and shear thinning properties. Subsequent physicochemical analysis of the crosslinked hydrogels showed that Col II inclusion resulted in a more swollen and softer polymer network, without affecting degradation time. While all hydrogels exhibited exemplary injectability, only the Col I-containing hydrogels had sufficient mechanical stability for 3DP applications. To facilitate 3DP of multi-layered scaffolds using methacrylated HA (MeHA)-Col I and MeHA-Col I/Col II, additional mechanical support in the form of a gelatin slurry support bath freeform reversible embedding of suspended hydrogels was utilised. Biological analysis revealed that Col II inclusion enhanced hydrogel-embedded MSC chondrogenesis, thus MeHA-Col II was selected as the optimal injectable hydrogel, and MeHA-Col I/Col II as the preferred bioink. In summary, this study demonstrates how tailoring biomaterial composition and physicochemical properties enables development of pro-chondrogenic hydrogels with potential for minimally invasive delivery to injured articular joints or 3DP of customised regenerative implants for cartilage repair.
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Affiliation(s)
- Donagh G O'Shea
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, RCSI University of Medicine and Health Sciences, Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and TCD, Dublin, Ireland
| | - Tom Hodgkinson
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, RCSI University of Medicine and Health Sciences, Dublin, Ireland
- Trinity Centre for Biomedical Engineering, Trinity College Dublin (TCD), Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and TCD, Dublin, Ireland
| | - Caroline M Curtin
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, RCSI University of Medicine and Health Sciences, Dublin, Ireland
- Trinity Centre for Biomedical Engineering, Trinity College Dublin (TCD), Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and TCD, Dublin, Ireland
| | - Fergal J O'Brien
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, RCSI University of Medicine and Health Sciences, Dublin, Ireland
- Trinity Centre for Biomedical Engineering, Trinity College Dublin (TCD), Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and TCD, Dublin, Ireland
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Joyce M, Hodgkinson T, Lemoine M, González-Vázquez A, Kelly DJ, O'Brien FJ. Development of a 3D-printed bioabsorbable composite scaffold with mechanical properties suitable for treating large, load-bearingarticular cartilage defects. Eur Cell Mater 2023; 45:158-172. [PMID: 37382477 DOI: 10.22203/ecm.v045a11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/30/2023] Open
Abstract
Extracellular matrix (ECM) biomaterials have shown promise for treating small artucular-joint defetcs. However, ECM-based biomaterials generally lack appropriate mechanical properties to support physiological loads and are prone to delamination in larger cartilage defects. To overcome these common mechanical limitations, a collagen hyaluronic-acid (CHyA) matrix, with proven regenerative potential, was reinforced with a bioabsorbable 3D-printed framework to support physiological loads. Polycaprolactone (PCL) was 3D-printed in two configurations, rectilinear and gyroid designs, that were extensively mechanically characterised. Both scaffold designs increased the compressive modulus of the CHyA matrices by three orders of magnitude, mimicking the physiological range (0.5-2.0 MPa) of healthy cartilage. The gyroid scaffold proved to be more flexible compared to the rectilinear scaffold, thus better contouring to the curvature of a femoral condyle. Additionally, PCL reinforcement of the CHyA matrix increased the tensile modulus and allowed for suture fixation of the scaffold to the subchondral bone, thus addressing the major challenge of biomaterial fixation to articular joint surfaces in shallow defects. In vitro evaluation confirmed successful infiltration of human mesenchymal stromal cells (MSCs) within the PCL-CHyA scaffolds, which resulted in increased production of sulphated glycosaminoglycans (sGAG/DNA; p = 0.0308) compared to non-reinforced CHyA matrices. Histological staining using alcian blue confirmed these results, while also indicating greater spatial distribution of sGAG throughout the PCL-CHyA scaffold. These findings have a great clinical importance as they provide evidence that reinforced PCL-CHyA scaffolds, with their increased chondroinductive potential and compatibility with joint fixation techniques, could be used to repair large-area chondral defects that currently lack effective treatment options.
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Affiliation(s)
| | | | | | | | | | - F J O'Brien
- Royal College of Surgeons in Ireland, Dublin,
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4
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Hodgkinson T, Amado IN, O'Brien FJ, Kennedy OD. The role of mechanobiology in bone and cartilage model systems in characterizing initiation and progression of osteoarthritis. APL Bioeng 2022. [DOI: 10.1063/5.0068277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Tom Hodgkinson
- Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Isabel N. Amado
- Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Fergal J. O'Brien
- Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
- Advanced Materials Bio-Engineering Research Centre (AMBER), Dublin, Ireland
- Trinity Centre for Biomedical Engineering, Trinity College Dublin, Dublin, Ireland
| | - Oran D. Kennedy
- Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
- Advanced Materials Bio-Engineering Research Centre (AMBER), Dublin, Ireland
- Trinity Centre for Biomedical Engineering, Trinity College Dublin, Dublin, Ireland
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5
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Intini C, Lemoine M, Hodgkinson T, Casey S, Gleeson JP, O'Brien FJ. A highly porous type II collagen containing scaffold for the treatment of cartilage defects enhances MSC chondrogenesis and early cartilaginous matrix deposition. Biomater Sci 2022; 10:970-983. [DOI: 10.1039/d1bm01417j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The combination of type II collagen (CII) and hyaluronic acid (HyA) resulted in the development of a CII-containing scaffold with improved chondrogenic benefits for simple and effective “off-the-shelf” application for enhanced cartilage repair.
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Affiliation(s)
- Claudio Intini
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, RCSI & TCD, Ireland
| | - Mark Lemoine
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, RCSI & TCD, Ireland
| | - Tom Hodgkinson
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, RCSI & TCD, Ireland
| | - Sarah Casey
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, RCSI & TCD, Ireland
| | - John P. Gleeson
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Fraunhofer Project Centre for Embedded Bioanalytical Systems, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Fergal J. O'Brien
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, RCSI & TCD, Ireland
- Trinity Centre for Biomedical Engineering, Trinity College Dublin (TCD), Dublin 2, Ireland
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6
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Hodgkinson T, Tsimbouri PM, Llopis-Hernandez V, Campsie P, Scurr D, Childs PG, Phillips D, Donnelly S, Wells JA, O'Brien FJ, Salmeron-Sanchez M, Burgess K, Alexander M, Vassalli M, Oreffo ROC, Reid S, France DJ, Dalby MJ. The use of nanovibration to discover specific and potent bioactive metabolites that stimulate osteogenic differentiation in mesenchymal stem cells. Sci Adv 2021; 7:7/9/eabb7921. [PMID: 33637520 PMCID: PMC7909882 DOI: 10.1126/sciadv.abb7921] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 01/12/2021] [Indexed: 05/02/2023]
Abstract
Bioactive metabolites have wide-ranging biological activities and are a potential source of future research and therapeutic tools. Here, we use nanovibrational stimulation to induce osteogenic differentiation of mesenchymal stem cells, in the absence of off-target, nonosteogenic differentiation. We show that this differentiation method, which does not rely on the addition of exogenous growth factors to culture media, provides an artifact-free approach to identifying bioactive metabolites that specifically and potently induce osteogenesis. We first identify a highly specific metabolite, cholesterol sulfate, an endogenous steroid. Next, a screen of other small molecules with a similar steroid scaffold identified fludrocortisone acetate with both specific and highly potent osteogenic-inducing activity. Further, we implicate cytoskeletal contractility as a measure of osteogenic potency and cell stiffness as a measure of specificity. These findings demonstrate that physical principles can be used to identify bioactive metabolites and then enable optimization of metabolite potency can be optimized by examining structure-function relationships.
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Affiliation(s)
- Tom Hodgkinson
- Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin D2, Ireland
| | - P Monica Tsimbouri
- Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK
| | - Virginia Llopis-Hernandez
- Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK
| | - Paul Campsie
- SUPA Department of Biomedical Engineering, University of Strathclyde, Glasgow G1 1QE, UK
| | - David Scurr
- School of Pharmacy, The University of Nottingham, Nottingham NG7 2RD, UK
| | - Peter G Childs
- Centre for the Cellular Microenvironment, Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, UK
| | - David Phillips
- School of Chemistry, College of Science and Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Sam Donnelly
- Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK
| | - Julia A Wells
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, UK
| | - Fergal J O'Brien
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin D2, Ireland
| | - Manuel Salmeron-Sanchez
- Centre for the Cellular Microenvironment, Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, UK
| | - Karl Burgess
- Glasgow Polyomics, College of Medical, Veterinary and Life Sciences, University of Glasgow, Switchback Rd., Bearsden, Glasgow G61 1BD, UK
| | - Morgan Alexander
- School of Pharmacy, The University of Nottingham, Nottingham NG7 2RD, UK
| | - Massimo Vassalli
- Centre for the Cellular Microenvironment, Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, UK
| | - Richard O C Oreffo
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, UK
| | - Stuart Reid
- SUPA Department of Biomedical Engineering, University of Strathclyde, Glasgow G1 1QE, UK
| | - David J France
- School of Chemistry, College of Science and Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Matthew J Dalby
- Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK.
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7
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Gouveia PJ, Hodgkinson T, Amado I, Sadowska JM, Ryan AJ, Romanazzo S, Carroll S, Cryan SA, Kelly DJ, O'Brien FJ. Development of collagen-poly(caprolactone)-based core-shell scaffolds supplemented with proteoglycans and glycosaminoglycans for ligament repair. Mater Sci Eng C Mater Biol Appl 2020; 120:111657. [PMID: 33545824 DOI: 10.1016/j.msec.2020.111657] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 10/01/2020] [Accepted: 10/16/2020] [Indexed: 01/13/2023]
Abstract
Core-shell scaffolds offer a promising regenerative solution to debilitating injuries to anterior cruciate ligament (ACL) thanks to a unique biphasic structure. Nevertheless, current core-shell designs are impaired by an imbalance between permeability, biochemical and mechanical cues. This study aimed to address this issue by creating a porous core-shell construct which favors cell infiltration and matrix production, while providing mechanical stability at the site of injury. The developed core-shell scaffold combines an outer shell of electrospun poly(caprolactone) fibers with a freeze-dried core of type I collagen doped with proteoglycans (biglycan, decorin) or glycosaminoglycans (chondroitin sulphate, dermatan sulphate). The aligned fibrous shell achieved an elastic modulus akin of the human ACL, while the porous collagen core is permeable to human mesenchymal stem cell (hMSC). Doping of the core with the aforementioned biomolecules led to structural and mechanical changes in the pore network. Assessment of cellular metabolic activity and scaffold contraction shows that hMSCs actively remodel the matrix at different degrees, depending on the core's doping formulation. Additionally, immunohistochemical staining and mRNA transcript levels show that the collagen-chondroitin sulphate formulation has the highest matrix production activity, while the collagen-decorin formulation featured a matrix production profile more characteristic of the undamaged tissue. Together, this demonstrates that scaffold doping with target biomolecules leads to distinct levels of cell-mediated matrix remodeling. Overall, this work resulted in the development of a versatile and robust platform with a combination of mechanical and biochemical features that have a significant potential in promoting the repair process of ACL tissue.
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Affiliation(s)
- Pedro J Gouveia
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Ireland; Advanced Materials and BioEngineering Research (AMBER) Centre, RCSI, Ireland
| | - Tom Hodgkinson
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Ireland
| | - Isabel Amado
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Ireland
| | - Joanna M Sadowska
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Ireland
| | - Alan J Ryan
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Ireland; Advanced Materials and BioEngineering Research (AMBER) Centre, RCSI, Ireland
| | - Sara Romanazzo
- Trinity Centre for Biomedical Engineering, Trinity College Dublin (TCD), Ireland; Advanced Materials and BioEngineering Research (AMBER) Centre, RCSI, Ireland
| | - Simon Carroll
- Trinity Centre for Biomedical Engineering, Trinity College Dublin (TCD), Ireland; Advanced Materials and BioEngineering Research (AMBER) Centre, RCSI, Ireland
| | | | - Daniel J Kelly
- Trinity Centre for Biomedical Engineering, Trinity College Dublin (TCD), Ireland; Advanced Materials and BioEngineering Research (AMBER) Centre, RCSI, Ireland
| | - Fergal J O'Brien
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Ireland; Trinity Centre for Biomedical Engineering, Trinity College Dublin (TCD), Ireland; Advanced Materials and BioEngineering Research (AMBER) Centre, RCSI, Ireland.
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Hodgkinson T, Gilbert HTJ, Pandya T, Diwan AD, Hoyland JA, Richardson SM. Regenerative Response of Degenerate Human Nucleus Pulposus Cells to GDF6 Stimulation. Int J Mol Sci 2020; 21:E7143. [PMID: 32992671 PMCID: PMC7582366 DOI: 10.3390/ijms21197143] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/18/2020] [Accepted: 09/24/2020] [Indexed: 12/13/2022] Open
Abstract
Growth differentiation factor (GDF) family members have been implicated in the development and maintenance of healthy nucleus pulposus (NP) tissue, making them promising therapeutic candidates for treatment of intervertebral disc (IVD) degeneration and associated back pain. GDF6 has been shown to promote discogenic differentiation of mesenchymal stem cells, but its effect on NP cells remains largely unknown. Our aim was to investigate GDF6 signalling in adult human NP cells derived from degenerate tissue and determine the signal transduction pathways critical for GDF6-mediated phenotypic changes and tissue homeostatic mechanisms. This study demonstrates maintained expression of GDF6 receptors in human NP and annulus fibrosus (AF) cells across a range of degeneration grades at gene and protein level. We observed an anabolic response in NP cells treated with recombinant GDF6 (increased expression of matrix and NP-phenotypic markers; increased glycosaminoglycan production; no change in catabolic enzyme expression), and identified the signalling pathways involved in these responses (SMAD1/5/8 and ERK1/2 phosphorylation, validated by blocking studies). These findings suggest that GDF6 promotes a healthy disc tissue phenotype in degenerate NP cells through SMAD-dependent and -independent (ERK1/2) mechanisms, which is important for development of GDF6 therapeutic strategies for treatment of degenerate discs.
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Affiliation(s)
- Tom Hodgkinson
- 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, Oxford Road, Manchester M13 9PT, UK; (T.H.); (H.T.J.G.); (T.P.); (J.A.H.)
| | - Hamish T. J. Gilbert
- 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, Oxford Road, Manchester M13 9PT, UK; (T.H.); (H.T.J.G.); (T.P.); (J.A.H.)
| | - Tej Pandya
- 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, Oxford Road, Manchester M13 9PT, UK; (T.H.); (H.T.J.G.); (T.P.); (J.A.H.)
| | - Ashish D. Diwan
- St George & Sutherland Clinical School, University of New South Wales, Sydney, NSW 2217, Australia;
| | - Judith A. Hoyland
- 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, Oxford Road, Manchester M13 9PT, UK; (T.H.); (H.T.J.G.); (T.P.); (J.A.H.)
- NIHR Manchester Biomedical Research Centre, Central Manchester Foundation Trust, Manchester Academic Health Science Centre, Manchester M13 9NT, UK
| | - Stephen M. Richardson
- 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, Oxford Road, Manchester M13 9PT, UK; (T.H.); (H.T.J.G.); (T.P.); (J.A.H.)
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9
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Hodgkinson T, Wignall F, Hoyland JA, Richardson SM. High BMPR2 expression leads to enhanced SMAD1/5/8 signalling and GDF6 responsiveness in human adipose-derived stem cells: implications for stem cell therapies for intervertebral disc degeneration. J Tissue Eng 2020; 11:2041731420919334. [PMID: 32489577 PMCID: PMC7238299 DOI: 10.1177/2041731420919334] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 03/26/2020] [Indexed: 01/08/2023] Open
Abstract
Stem cell–based regenerative strategies are promising for intervertebral disc
degeneration. Stimulation of bone-marrow- and adipose-derived multipotent stem
cells with recombinant human growth differentiation factor 6 (rhGDF6) promotes
anabolic nucleus pulposus like phenotypes. In comparison to mesenchymal stem
cells, adipose-derived multipotent stem cells exhibit greater NP-marker gene
expression and proteoglycan-rich matrix production. To understand these response
differences, we investigated bone morphogenetic protein receptor profiles in
donor-matched human mesenchymal stem cells and adipose-derived multipotent stem
cells, determined differences in rhGDF6 signalling and their importance in
NP-like differentiation between cell populations. Bone morphogenetic protein
receptor expression in mesenchymal stem cells and adipose-derived multipotent
stem cells revealed elevated and less variable expression of BMPR2 in
adipose-derived multipotent stem cells, which corresponded with increased
downstream pathway activation (SMAD1/5/8, ERK1/2). Inhibitor studies
demonstrated SMAD1/5/8 signalling was required for rhGDF6-induced
nucleus-pulposus-like adipose-derived multipotent stem cell differentiation,
while ERK1/2 contributed significantly to critical nucleus pulposus gene
expression, aggrecan and type II collagen production. These data inform cell
regenerative therapeutic choices for intervertebral disc degeneration
regeneration and identify further potential optimisation targets.
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Affiliation(s)
- Tom Hodgkinson
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK
| | - Francis Wignall
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK
| | - Judith A Hoyland
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK.,NIHR Manchester Musculoskeletal Biomedical Research Unit, Central Manchester Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Stephen M Richardson
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK
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10
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Hodgkinson T, Stening JZ, White LJ, Shakesheff KM, Hoyland JA, Richardson SM. Microparticles for controlled growth differentiation factor 6 delivery to direct adipose stem cell-based nucleus pulposus regeneration. J Tissue Eng Regen Med 2019; 13:1406-1417. [PMID: 31066515 PMCID: PMC6771973 DOI: 10.1002/term.2882] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 03/28/2019] [Accepted: 04/29/2019] [Indexed: 12/11/2022]
Abstract
Currently, there is no effective long‐term treatment for intervertebral disc (IVD) degeneration, making it an attractive candidate for regenerative therapies. Hydrogel delivery of adipose stem cells (ASCs) in combination with controlled release of bioactive molecules is a promising approach to halt IVD degeneration and promote regeneration. Growth differentiation factor 6 (GDF6) can induce ASC differentiation into anabolic nucleus pulposus (NP) cells and hence holds promise for IVD regeneration. Here, we optimised design of novel poly(DL‐lactic acid‐co‐glycolic acid) (PLGA)–polyethylene glycol–PLGA microparticles to control GDF6 delivery and investigated effect of released GDF6 on human ASCs differentiation to NP cells. Recombinant human (rh)GDF6 was loaded into microparticles and total protein and rhGDF6 release assessed. The effect of microparticle loading density on distribution and gel formation was investigated through scanning electron microscopy. ASC differentiation to NP cells was examined after 14 days in hydrogel culture by quantitative polymerase chain reaction, histological, and immunohistochemical staining in normoxic and IVD‐like hypoxic conditions. RhGDF6 microparticles were distributed throughout gels without disrupting gelation and controlled rhGDF6 release over 14 days. Released GDF6 significantly induced NP differentiation of ASCs, with expression comparable with or exceeding media supplemented rhGDF6. Microparticle‐delivered rhGDF6 also up‐regulated sulphated glycosaminoglycan and aggrecan secretion in comparison with controls. In hypoxia, microparticle‐delivered rhGDF6 continued to effectively induce NP gene expression and aggrecan production. This study demonstrates the effective encapsulation and controlled delivery of rhGDF6, which maintained its activity and induced ASC differentiation to NP cells and synthesis of an NP‐like matrix suggesting suitability of microparticles for controlled growth factor release in regenerative strategies for treatment of IVD degeneration.
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Affiliation(s)
- Tom Hodgkinson
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Jasmine Z Stening
- Division of Regenerative Medicine and Cellular Therapies, School of Pharmacy, Faculty of Science, University of Nottingham, Nottingham, UK
| | - Lisa J White
- Division of Regenerative Medicine and Cellular Therapies, School of Pharmacy, Faculty of Science, University of Nottingham, Nottingham, UK
| | - Kevin M Shakesheff
- Division of Regenerative Medicine and Cellular Therapies, School of Pharmacy, Faculty of Science, University of Nottingham, Nottingham, UK
| | - Judith A Hoyland
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.,Central Manchester Foundation Trust, Manchester Academic Health Science Centre, NIHR Manchester Biomedical Research Centre, Manchester, UK
| | - Stephen M Richardson
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
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11
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Hodgkinson T, Shen B, Diwan A, Hoyland JA, Richardson SM. Therapeutic potential of growth differentiation factors in the treatment of degenerative disc diseases. JOR Spine 2019; 2:e1045. [PMID: 31463459 PMCID: PMC6686806 DOI: 10.1002/jsp2.1045] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/16/2019] [Accepted: 02/04/2019] [Indexed: 02/06/2023] Open
Abstract
Intervertebral disc (IVD) degeneration is a major contributing factor to chronic low back pain and disability, leading to imbalance between anabolic and catabolic processes, altered extracellular matrix composition, loss of tissue hydration, inflammation, and impaired mechanical functionality. Current treatments aim to manage symptoms rather than treat underlying pathology. Therefore, IVD degeneration is a target for regenerative medicine strategies. Research has focused on understanding the molecular process of degeneration and the identification of various factors that may have the ability to halt and even reverse the degenerative process. One such family of growth factors, the growth differentiation factor (GDF) family, have shown particular promise for disc regeneration in in vitro and in vivo models of IVD degeneration. This review outlines our current understanding of IVD degeneration, and in this context, aims to discuss recent advancements in the use of GDF family members as anabolic factors for disc regeneration. An increasing body of evidence indicates that GDF family members are central to IVD homeostatic processes and are able to upregulate healthy nucleus pulposus cell marker genes in degenerative cells, induce mesenchymal stem cells to differentiate into nucleus pulposus cells and even act as chemotactic signals mobilizing resident cell populations during disc injury repair. The understanding of GDF signaling and its interplay with inflammatory and catabolic processes may be critical for the future development of effective IVD regeneration therapies.
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Affiliation(s)
- Tom Hodgkinson
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of ManchesterManchester Academic Health Sciences CentreManchesterUK
- Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Bojiang Shen
- St. George Clinical SchoolUniversity of New South WalesSydneyNew South WalesAustralia
| | - Ashish Diwan
- St. George Clinical SchoolUniversity of New South WalesSydneyNew South WalesAustralia
| | - Judith A. Hoyland
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of ManchesterManchester Academic Health Sciences CentreManchesterUK
- NIHR Manchester Biomedical Research Centre, Manchester University Foundation TrustManchester Academic Health Sciences CentreManchesterUK
| | - Stephen M. Richardson
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of ManchesterManchester Academic Health Sciences CentreManchesterUK
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12
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Abstract
The tissue engineering applications of coaxial electrospinning are growing due to the potential increased functionality of the fibres compared to basic electrospinning. Previous studies of core and shell scaffolds have placed the active elements in the core, however, the surface response to a biomaterial affects the subsequent behaviour, thus here hydroxyapatite (HA) was added to the shell. Coaxial electrospun polycaprolactone (PCL)-polylactic acid (PLA)/HA (core-shell) scaffolds were produced in 2D sheets using a plate collector, or 3D tubes for bone tissue engineering using a rotating needle collector. The scaffolds include high hydroxyapatite content while retaining their structural and mechanical integrity. The effect of the collector type on fibre diameter, fibre alignment and mechanical properties have been evaluated, and the impact of HA incorporation on bioactivity, BMP-2 release, cell behaviour and mechanical properties for up to 12 weeks degradation were assessed. Fibre uniformity in coaxial electrospinning depends on the relative flow rate of the core and shell solutions. Using a rotating needle collector increased fibre alignment compared to a stationary collector, without affecting fibre diameter significantly, while HA content increased fibre non-uniformity. Coaxial PCL-PLA/HA fibres exhibited significantly higher bioactivity compared to PCL-PLA scaffolds due to the surface exposure of the HA particles. Apatite formation increased with increasing SBF immersion time. Coaxial tubular scaffolds with and without HA incorporation showed gradual reductions in their mechanical properties over 12 weeks in PBS or SBF but still retained their structural integrity. Coaxial scaffolds with and without HA exhibited gradual and sustained BMP-2 release and supported MSCs proliferation and differentiation with no significant difference between the two scaffolds types. These materials therefore show potential applications as bone tissue engineering scaffolds.
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Affiliation(s)
- Muna M Kareem
- Biomedical Engineering Division, School of Engineering, University of Glasgow, University Avenue, Glasgow, G12 8QQ, United Kingdom
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13
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Jumper N, Hodgkinson T, Paus R, Bayat A. A Role for Neuregulin-1 in Promoting Keloid Fibroblast Migration via ErbB2-mediated Signaling. Acta Derm Venereol 2017; 97:675-684. [PMID: 27882385 DOI: 10.2340/00015555-2587] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Keloid disease is a fibroproliferative tumour characterised by aggressive local invasion, evident from a clinically and histologically active migrating margin. During combined laser capture microdissection and microarray analysis-based in situ gene expression profiling, we identified upregulation of the polypeptide growth factor neuregulin-1 (NRG1) and ErbB2 oncogene in keloid margin dermis, leading to the hypothesis that NRG1 contributed to keloid margin migration through ErbB2-mediated signalling. The aim of this study was to probe this hypothesis through functional in vitro studies. Exogenous NRG1 addition to keloid and normal skin fibroblasts altered cytokine expression profiles, significantly increased in vitro migration and keloid fibroblast Src and protein tyrosine kinase 2 (PTK2/FAK) gene expression. ErbB2 siRNA knockdown attenuated both keloid fibroblast migration and Src/PTK2 expression, which were not recovered following NRG1 administration, suggesting the NRG1/ErbB2/Src/PTK2 signaling pathway may be a novel regulator of keloid fibroblast migration, and representing a potential new therapeutic target.
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Affiliation(s)
- Natalie Jumper
- Plastic and Reconstructive Surgery Research, Stopford Building, Manchester M13 9PT , United Kingdom
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14
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Jumper N, Hodgkinson T, Paus R, Bayat A. Site-specific gene expression profiling as a novel strategy for unravelling keloid disease pathobiology. PLoS One 2017; 12:e0172955. [PMID: 28257480 PMCID: PMC5336271 DOI: 10.1371/journal.pone.0172955] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 02/13/2017] [Indexed: 12/13/2022] Open
Abstract
Keloid disease (KD) is a fibroproliferative cutaneous tumour characterised by heterogeneity, excess collagen deposition and aggressive local invasion. Lack of a validated animal model and resistance to a multitude of current therapies has resulted in unsatisfactory clinical outcomes of KD management. In order to address KD from a new perspective, we applied for the first time a site-specific in situ microdissection and gene expression profiling approach, through combined laser capture microdissection and transcriptomic array. The aim here was to analyse the utility of this approach compared with established methods of investigation, including whole tissue biopsy and monolayer cell culture techniques. This study was designed to approach KD from a hypothesis-free and compartment-specific angle, using state-of-the-art microdissection and gene expression profiling technology. We sought to characterise expression differences between specific keloid lesional sites and elucidate potential contributions of significantly dysregulated genes to mechanisms underlying keloid pathobiology, thus informing future explorative research into KD. Here, we highlight the advantages of our in situ microdissection strategy in generating expression data with improved sensitivity and accuracy over traditional methods. This methodological approach supports an active role for the epidermis in the pathogenesis of KD through identification of genes and upstream regulators implicated in epithelial-mesenchymal transition, inflammation and immune modulation. We describe dermal expression patterns crucial to collagen deposition that are associated with TGFβ-mediated signalling, which have not previously been examined in KD. Additionally, this study supports the previously proposed presence of a cancer-like stem cell population in KD and explores the possible contribution of gene dysregulation to the resistance of KD to conventional therapy. Through this innovative in situ microdissection gene profiling approach, we provide better-defined gene signatures of distinct KD regions, thereby addressing KD heterogeneity, facilitating differential diagnosis with other cutaneous fibroses via transcriptional fingerprinting, and highlighting key areas for future KD research.
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Affiliation(s)
- N. Jumper
- Plastic and Reconstructive Surgery Research, University of Manchester, Oxford Rd, Manchester, United Kingdom
| | - T. Hodgkinson
- Plastic and Reconstructive Surgery Research, University of Manchester, Oxford Rd, Manchester, United Kingdom
- Centre for Tissue Injury and Repair, University of Manchester, and MAHSC, Manchester, United Kingdom
| | - R. Paus
- Centre for Dermatology Research, University of Manchester, and MAHSC, Manchester, United Kingdom
| | - A. Bayat
- Plastic and Reconstructive Surgery Research, University of Manchester, Oxford Rd, Manchester, United Kingdom
- Centre for Dermatology Research, University of Manchester, and MAHSC, Manchester, United Kingdom
- * E-mail:
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15
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Li Z, Hodgkinson T, Gothard EJ, Boroumand S, Lamb R, Cummins I, Narang P, Sawtell A, Coles J, Leonov G, Reboldi A, Buckley CD, Cupedo T, Siebel C, Bayat A, Coles MC, Ambler CA. Epidermal Notch1 recruits RORγ(+) group 3 innate lymphoid cells to orchestrate normal skin repair. Nat Commun 2016; 7:11394. [PMID: 27099134 PMCID: PMC4844683 DOI: 10.1038/ncomms11394] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 03/21/2016] [Indexed: 12/18/2022] Open
Abstract
Notch has a well-defined role in controlling cell fate decisions in the embryo and the adult epidermis and immune systems, yet emerging evidence suggests Notch also directs non-cell-autonomous signalling in adult tissues. Here, we show that Notch1 works as a damage response signal. Epidermal Notch induces recruitment of immune cell subsets including RORγ+ ILC3s into wounded dermis; RORγ+ ILC3s are potent sources of IL17F in wounds and control immunological and epidermal cell responses. Mice deficient for RORγ+ ILC3s heal wounds poorly resulting from delayed epidermal proliferation and macrophage recruitment in a CCL3-dependent process. Notch1 upregulates TNFα and the ILC3 recruitment chemokines CCL20 and CXCL13. TNFα, as a Notch1 effector, directs ILC3 localization and rates of wound healing. Altogether these findings suggest that Notch is a key stress/injury signal in skin epithelium driving innate immune cell recruitment and normal skin tissue repair. In normal skin, Notch directs keratinocytes to terminally differentiate. Here the authors show that Notch1 has a wider role in skin repair; Notch1 is activated in keratinocytes after damage and drives transcription of TNFα and inflammatory chemokines, which in turn recruit ILC3s and macrophages that promote repair.
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Affiliation(s)
- Zhi Li
- School of Biological and Biomedical Sciences, Biophysical Sciences Institute, Durham University, Durham DH1 3LE, UK.,Centre for Immunology and Infection, Department of Biology and Hull York Medical School, York YO10 5DD, UK
| | - Tom Hodgkinson
- Institute for Inflammation and Repair, University of Manchester, Manchester M1 7DN, UK
| | - Elizabeth J Gothard
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, York YO10 5DD, UK
| | - Soulmaz Boroumand
- School of Biological and Biomedical Sciences, Biophysical Sciences Institute, Durham University, Durham DH1 3LE, UK
| | - Rebecca Lamb
- School of Biological and Biomedical Sciences, Biophysical Sciences Institute, Durham University, Durham DH1 3LE, UK
| | - Ian Cummins
- School of Biological and Biomedical Sciences, Biophysical Sciences Institute, Durham University, Durham DH1 3LE, UK
| | - Priyanka Narang
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, York YO10 5DD, UK
| | - Amy Sawtell
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, York YO10 5DD, UK
| | - Jenny Coles
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, York YO10 5DD, UK
| | - German Leonov
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, York YO10 5DD, UK
| | - Andrea Reboldi
- Department of Microbiology and Immunology, University of California, San Francisco, California 94143, USA
| | | | - Tom Cupedo
- Department of Hematology, Erasmus University Medical Center, Rotterdam 3015CN, Netherlands
| | - Christian Siebel
- Department of Molecular Biology, Division of Research, Genentech Inc, South San Francisco, California 94080, USA
| | - Ardeshir Bayat
- Institute for Inflammation and Repair, University of Manchester, Manchester M1 7DN, UK
| | - Mark C Coles
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, York YO10 5DD, UK
| | - Carrie A Ambler
- School of Biological and Biomedical Sciences, Biophysical Sciences Institute, Durham University, Durham DH1 3LE, UK
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16
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Jumper N, Hodgkinson T, Arscott G, Har-Shai Y, Paus R, Bayat A. The Aldo-Keto Reductase AKR1B10 Is Up-Regulated in Keloid Epidermis, Implicating Retinoic Acid Pathway Dysregulation in the Pathogenesis of Keloid Disease. J Invest Dermatol 2016; 136:1500-1512. [PMID: 27025872 DOI: 10.1016/j.jid.2016.03.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 02/09/2016] [Accepted: 03/07/2016] [Indexed: 12/19/2022]
Abstract
Keloid disease is a recurrent fibroproliferative cutaneous tumor of unknown pathogenesis for which clinical management remains unsatisfactory. To obtain new insights into hitherto underappreciated aspects of keloid pathobiology, we took a laser capture microdissection-based, whole-genome microarray analysis approach to identify distinct keloid disease-associated gene expression patterns within defined keloid regions. Identification of the aldo-keto reductase enzyme AKR1B10 as highly up-regulated in keloid epidermis suggested that an imbalance of retinoic acid metabolism is likely associated with keloid disease. Here, we show that AKR1B10 transfection into normal human keratinocytes reproduced the abnormal retinoic acid pathway expression pattern we had identified in keloid epidermis. Cotransfection of AKR1B10 with a luciferase reporter plasmid showed reduced retinoic acid response element activity, supporting the hypothesis of retinoic acid synthesis deficiency in keloid epidermis. Paracrine signals released by AKR1B10-overexpressing keratinocytes into conditioned medium resulted in up-regulation of transforming growth factor-β1, transforming growth factor-β2, and collagens I and III in both keloid and normal skin fibroblasts, mimicking the typical profibrotic keloid profile. Our study results suggest that insufficient retinoic acid synthesis by keloid epidermal keratinocytes may contribute to the pathogenesis of keloid disease. We refocus attention on the role of injured epithelium in keloid disease and identify AKR1B10 as a potential new target in future management of keloid disease.
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Affiliation(s)
- Natalie Jumper
- Plastic and Reconstructive Surgery Research, Manchester Institute of Biotechnology, University of Manchester, Manchester, UK
| | - Tom Hodgkinson
- Plastic and Reconstructive Surgery Research, Manchester Institute of Biotechnology, University of Manchester, Manchester, UK
| | - Guyan Arscott
- Department of Plastic and Reconstructive Surgery, University of West Indies, Kingston, Jamaica
| | - Yaron Har-Shai
- Plastic Surgery Unit, Carmel Medical Center, Haifa, Israel
| | - Ralf Paus
- Centre for Dermatology Research, Institute of Inflammation and Repair, University of Manchester, Manchester, UK; Department of Dermatology, University of Münster, D-48149, Münster, Germany
| | - Ardeshir Bayat
- Plastic and Reconstructive Surgery Research, Manchester Institute of Biotechnology, University of Manchester, Manchester, UK; Centre for Dermatology Research, Institute of Inflammation and Repair, University of Manchester, Manchester, UK.
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17
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Greaves NS, Iqbal SA, Hodgkinson T, Morris J, Benatar B, Alonso‐Rasgado T, Baguneid M, Bayat A. Skin substitute‐assisted repair shows reduced dermal fibrosis in acute human wounds validated simultaneously by histology and optical coherence tomography. Wound Repair Regen 2015; 23:483-94. [DOI: 10.1111/wrr.12308] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 04/21/2015] [Indexed: 01/29/2023]
Affiliation(s)
- Nicholas S. Greaves
- Plastic and Reconstructive Surgery Research, Institute of Inflammation and RepairThe University of Manchester
- Department of Vascular SurgeryUniversity Hospital of South Manchester NHS Foundation Trust, Wythenshawe HospitalManchester
- Bioengineering Group, School of Materials, University of Manchester, andThe Pennine Acute Hospitals NHS TrustThe Royal Oldham HospitalOldham United Kingdom
| | - Syed A. Iqbal
- Plastic and Reconstructive Surgery Research, Institute of Inflammation and RepairThe University of Manchester
| | - Tom Hodgkinson
- Plastic and Reconstructive Surgery Research, Institute of Inflammation and RepairThe University of Manchester
| | - Julie Morris
- Department of Medical Statistics, University Hospital of South Manchester NHS Foundation TrustWythenshawe Hospital
| | - Brian Benatar
- Department of Histopathology, The Pennine Acute Hospitals NHS TrustThe Royal Oldham HospitalOldham United Kingdom
| | - Teresa Alonso‐Rasgado
- Bioengineering Group, School of Materials, University of Manchester, andThe Pennine Acute Hospitals NHS TrustThe Royal Oldham HospitalOldham United Kingdom
| | - Mohamed Baguneid
- Department of Vascular SurgeryUniversity Hospital of South Manchester NHS Foundation Trust, Wythenshawe HospitalManchester
| | - Ardeshir Bayat
- Plastic and Reconstructive Surgery Research, Institute of Inflammation and RepairThe University of Manchester
- Bioengineering Group, School of Materials, University of Manchester, andThe Pennine Acute Hospitals NHS TrustThe Royal Oldham HospitalOldham United Kingdom
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18
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Abstract
Collagen-glycosaminoglycan flowable matrices (CGFM) are increasingly finding utility in a diversifying number of cutaneous surgical procedures. Cellular in-growth and vascularisation of CGFM remain rate-limiting steps, increasing cost and decreasing efficacy. Through in vitro and ex vivo culture methods, this study investigated the improvement of injectable CGFM by the incorporation of hyaluronan (HA) and viable human cells (primary human dermal fibroblasts (PHDFs) and bone marrow-derived mesenchymal stem cells (BM-MSCs)). Ex vivo investigations included the development and evaluation of a human cutaneous wound healing model for the comparison of dermal substitutes. Cells mixed into the Integra Flowable Wound Matrix (IFWM), a commercially available CGFM, were confirmed to be viable and proliferative through MTT assays (p < 0.05). PHDFs proliferated with greater rapidity than BM-MSCs up to 1 week in culture (p < 0.05), with PHDF proliferation further enhanced by HA supplementation (p < 0.05). After scaffold mixing, gene expression was not significantly altered (qRT-PCR). PHDF and BM-MSC incorporation into ex vivo wound models significantly increased re-epithelialisation rate, with maximal effects observed for BM-MSC supplemented IFWM. HA supplementation to PHDF populated IFWM increased re-epithelialisation but had no significant effect on BM-MSC populated IFWM. In conclusion, when combined with PHDF, HA increased re-epithelialisation in IFWM. BM-MSC incorporation significantly improved re-epithelialisation in ex vivo models over acellular and PHDF populated scaffolds. Viable cell incorporation into IFWM has potential to significantly benefit wound healing in chronic and acute cutaneous injuries by allowing a point-of-care matrix to be formed from autologous or allogenic cells and bioactive molecules.
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Affiliation(s)
- Tom Hodgkinson
- Plastic and Reconstructive Surgery Research, Manchester Institute of Biotechnology, 131 Princess St, University of Manchester, Manchester, UK. School of Chemical Engineering and Analytical Science, Manchester Institute of Biotechnology, 131 Princess St, University of Manchester, Manchester, UK
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19
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Hodgkinson T, Yuan XF, Bayat A. Electrospun silk fibroin fiber diameter influences in vitro dermal fibroblast behavior and promotes healing of ex vivo wound models. J Tissue Eng 2014; 5:2041731414551661. [PMID: 25383171 PMCID: PMC4221927 DOI: 10.1177/2041731414551661] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Accepted: 08/22/2014] [Indexed: 01/26/2023] Open
Abstract
Replicating the nanostructured components of extracellular matrix is a target for dermal tissue engineering and regenerative medicine. Electrospinning Bombyx mori silk fibroin (BMSF) allows the production of nano- to microscale fibrous scaffolds. For BMSF electrospun scaffolds to be successful, understanding and optimizing the cellular response to material morphology is essential. Primary human dermal fibroblast response to nine variants of BMSF scaffolds composed of nano- to microscale fibers ranging from ~250 to ~1200 nm was assessed in vitro with regard to cell proliferation, viability, cellular morphology, and gene expression. BMSF support of epithelial migration was then assessed through utilization of a novel ex vivo human skin wound healing model. Scaffolds composed of the smallest diameter fibers, ~250 -300 nm, supported cell proliferation significantly more than fibers with diameters approximately 1 μm (p < 0.001). Cell morphology was observed to depart from a stellate morphology with numerous cell -fiber interactions to an elongated, fiber-aligned morphology with interaction predominately with single fibers. The expressions of extracellular matrix genes, collagen types I and III (p < 0.001), and proliferation markers, proliferating cell nuclear antigen (p < 0.001), increased with decreasing fiber diameter. The re-epithelialization of ex vivo wound models was significantly improved with the addition of BMSF electrospun scaffolds, with migratory keratinocytes incorporated into scaffolds. BMSF scaffolds with nanofibrous architectures enhanced proliferation in comparison to microfibrous scaffolds and provided an effective template for migratory keratinocytes during re-epithelialization. The results may aid in the development of effective BMSF electrospun scaffolds for wound healing applications
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Affiliation(s)
- Tom Hodgkinson
- Plastic & Reconstructive Surgery Research, Manchester Institute of Biotechnology, University of Manchester, Manchester, UK ; School of Chemical Engineering and Analytical Science, University of Manchester, Manchester, UK
| | - Xue-Feng Yuan
- National Supercomputer Centre in Guangzhou (NSCC-GZ), Research Institute for Application of High Performance Computing, Sun Yat-Sen University, Guangzhou, P.R. China
| | - Ardeshir Bayat
- Plastic & Reconstructive Surgery Research, Manchester Institute of Biotechnology, University of Manchester, Manchester, UK
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20
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Hodgkinson T, Chen Y, Bayat A, Yuan XF. Rheology and Electrospinning of Regenerated Bombyx mori Silk Fibroin Aqueous Solutions. Biomacromolecules 2014; 15:1288-98. [DOI: 10.1021/bm4018319] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Tom Hodgkinson
- Manchester Institute of Biotechnology and ‡School of Chemical
Engineering and Analytical Science, University of Manchester, Manchester, United Kingdom
| | - Ying Chen
- Manchester Institute of Biotechnology and ‡School of Chemical
Engineering and Analytical Science, University of Manchester, Manchester, United Kingdom
| | - Ardeshir Bayat
- Manchester Institute of Biotechnology and ‡School of Chemical
Engineering and Analytical Science, University of Manchester, Manchester, United Kingdom
| | - Xue-Feng Yuan
- Manchester Institute of Biotechnology and ‡School of Chemical
Engineering and Analytical Science, University of Manchester, Manchester, United Kingdom
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21
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Wang L, Xie H, Qiao X, Goffin A, Hodgkinson T, Yuan X, Sun K, Fuller GG. Interfacial rheology of natural silk fibroin at air/water and oil/water interfaces. Langmuir 2012; 28:459-67. [PMID: 22107484 DOI: 10.1021/la2041373] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The interfacial viscoelastic behavior of natural silk fibroin at both the air/water and oil/water interfaces is reported. This natural multiblock copolymer is found to be strongly amphiphilic and forms stable films at these interfaces. The result is an interfacial layer that is rheologically complex with strong surface elastic moduli that are only slightly frequency-dependent. The kinetics of surface viscoelastic evolution are reported as functions of time for various concentrations of the spread films. Films deposited by Langmuir-Blodgett deposition were studied by scanning electron microscopy (SEM) to reveal a fibrous structure at the interface. The production of stable O/W emulsions by silk fibroin further confirms the generation of the elastic films at the oil/water interfaces.
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Affiliation(s)
- Lijun Wang
- State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
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22
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Hodgkinson T, Bayat A. Dermal substitute-assisted healing: enhancing stem cell therapy with novel biomaterial design. Arch Dermatol Res 2011; 303:301-15. [PMID: 21365208 DOI: 10.1007/s00403-011-1131-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2010] [Revised: 01/12/2011] [Accepted: 01/21/2011] [Indexed: 12/17/2022]
Abstract
The use of dermal substitutes is increasingly widespread but the outcomes of substitute-assisted healing remain functionally deficient. Presently, the most successful scaffolds are acellular polymer matrices, prepared through lyophilization and phase separation techniques, designed to mimic the dermal extracellular matrix. The application of scaffolds containing viable cells has proven to be problematic due to short shelf-life, high cost and death of transplanted cells as a result of immune rejection and apoptosis. Recent advances in biomaterial science have made new techniques available capable of increasing scaffold complexity, allowing the creation of 3D microenvironments that actively control cell behaviour. Importantly, it may be possible through these sophisticated novel techniques, including bio-printing and electrospinning, to accurately direct stem cell behaviour. This complex proposal involves the incorporation of cell-matrix, cell-cell, mechanical cues and soluble factors delivered in a spatially and temporally pertinent manner. This requires accurate modelling of three-dimensional stem cell interactions within niche environments to identify key signalling molecules and mechanisms. The application of stem cells within substitutes containing such environments may result in greatly improved transplanted cell viability. Ultimately this may increase cellular organization and complexity of skin substitutes. This review discusses progress made in improving the efficacy of cellular dermal substitutes for the treatment of cutaneous defects and the potential of evolving new technology to improve current results.
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Affiliation(s)
- T Hodgkinson
- Plastic and Reconstructive Surgery Research, Manchester Interdisciplinary Biocentre, University of Manchester, UK
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Oxenbury J, Brady M, Hodgkinson T. An alcohol problem. Practitioner 1992; 236:753-6. [PMID: 1461872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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