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Oliveira AS, Silva JC, Loureiro MV, Marques AC, Kotov NA, Colaço R, Serro AP. Super-Strong Hydrogel Composites Reinforced with PBO Nanofibers for Cartilage Replacement. Macromol Biosci 2023; 23:e2200240. [PMID: 36443994 DOI: 10.1002/mabi.202200240] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 10/28/2022] [Indexed: 11/30/2022]
Abstract
Cartilage replacement materials exhibiting a set of demanding properties such as high water content, high mechanical stiffness, low friction, and excellent biocompatibility are quite difficult to achieve. Here, poly(p-phenylene-2,6-benzobisoxazole) (PBO) nanofibers are combined with polyvinyl alcohol (PVA) to form a super-strong structure with a performance that surpasses the vast majority of previously existing hydrogels. PVA-PBO composites with water contents in the 59-76% range exhibit tensile and compressive moduli reaching 20.3 and 4.5 MPa, respectively, and a coefficient of friction below 0.08. Further, they are biocompatible and support the viability of chondrocytes for 1 week, with significant improvements in cell adhesion, proliferation, and differentiation compared to PVA. The new composites can be safely sterilized by steam heat or gamma radiation without compromising their integrity and overall performance. In addition, they show potential to be used as local delivery platforms for anti-inflammatory drugs. These attractive features make PVA-PBO composites highly competitive engineered materials with remarkable potential for use in the design of load-bearing tissues. Complementary work has also revealed that these composites will be interesting alternatives in other industrial fields where high thermal and mechanical resistance are essential requirements, or which can take advantage of the pH responsiveness functionality.
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Affiliation(s)
- Andreia S Oliveira
- Centro de Química Estrutural, Institute of Molecular Sciences, and Department of Chemical Engineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, Lisbon, 1049-001, Portugal.,Centro de Investigação Interdisciplinar Egas Moniz, Instituto Universitário Egas Moniz, Quinta da Granja, Monte de Caparica, Caparica, 2829-511, Portugal.,Instituto de Engenharia Mecânica and Department of Mechanical Engineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, Lisbon, 1049-001, Portugal
| | - João C Silva
- Institute for Bioengineering and Biosciences and Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, Lisbon, 1049-001, Portugal.,Associate Laboratory i4HB-Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, Lisbon, 1049-001, Portugal.,Centre for Rapid and Sustainable Product Development, Politécnico de Leiria, Rua de Portugal-Zona Industrial, Marinha Grande, 2430-028, Portugal
| | - Mónica V Loureiro
- Centro de Recursos Naturais e Ambiente, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, Lisbon, 1049-001, Portugal
| | - Ana C Marques
- Centro de Recursos Naturais e Ambiente, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, Lisbon, 1049-001, Portugal
| | - Nicholas A Kotov
- Biointerfaces Institute, Department of Chemical Engineering, and Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Rogério Colaço
- Instituto de Engenharia Mecânica and Department of Mechanical Engineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, Lisbon, 1049-001, Portugal
| | - Ana P Serro
- Centro de Química Estrutural, Institute of Molecular Sciences, and Department of Chemical Engineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, Lisbon, 1049-001, Portugal.,Centro de Investigação Interdisciplinar Egas Moniz, Instituto Universitário Egas Moniz, Quinta da Granja, Monte de Caparica, Caparica, 2829-511, Portugal
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Herger S, Vach W, Liphardt AM, Nüesch C, Egloff C, Mündermann A. Experimental-analytical approach to assessing mechanosensitive cartilage blood marker kinetics in healthy adults: dose-response relationship and interrelationship of nine candidate markers. F1000Res 2021; 10:490. [PMID: 35284064 PMCID: PMC8907551 DOI: 10.12688/f1000research.52159.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/06/2022] [Indexed: 11/20/2022] Open
Abstract
Purpose: To determine the suitability of selected blood biomarkers of articular cartilage as mechanosensitive markers and to investigate the dose-response relationship between ambulatory load magnitude and marker kinetics in response to load. Methods: Serum samples were collected from 24 healthy volunteers before and at three time points after a 30-minute walking stress test performed on three test days. In each experimental session, one of three ambulatory loads was applied: 100% body weight (BW); 80%BW; 120%BW. Serum concentrations of COMP, MMP-3, MMP-9, ADAMTS-4, PRG-4, CPII, C2C and IL-6 were assessed using commercial enzyme-linked immunosorbent assays. A two-stage analytical approach was used to determine the suitability of a biomarker by testing the response to the stress test (criterion I) and the dose-response relationship between ambulatory load magnitude and biomarker kinetics (criterion II). Results. COMP, MMP-3 and IL-6 at all three time points after, MMP-9 at 30 and 60 minutes after, and ADAMTS-4 and CPII at immediately after the stress test showed an average response to load or an inter-individual variation in response to load of up to 25% of pre-test levels. The relation to load magnitude on average or an inter-individual variation in this relationship was up to 8% from load level to load level. There was a positive correlation for the slopes of the change-load relationship between COMP and MMP-3, and a negative correlation for the slopes between COMP, MMP-3 and IL-6 with MMP-9, and COMP with IL6. Conclusions: COMP, MMP-3, IL-6, MMP-9, and ADAMTS-4 warrant further investigation in the context of articular cartilage mechanosensitivity and its role in joint degeneration and OA. While COMP seems to be able to reflect a rapid response, MMP-3 seems to reflect a slightly longer lasting, but probably also more distinct response. MMP-3 showed also the strongest association with the magnitude of load.
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Affiliation(s)
- Simon Herger
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Spine Surgery, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Biomedical Engineering, University of Basel, Allschwil, BL, 4123, Switzerland
| | - Werner Vach
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Clinical Research, University of Basel, Basel, BS, 4031, Switzerland
- Basel Academy for Quality and Research in Medicine, Basel, Switzerland
| | - Anna-Maria Liphardt
- Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nuremberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany
| | - Corina Nüesch
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Spine Surgery, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Biomedical Engineering, University of Basel, Allschwil, BL, 4123, Switzerland
- Department of Clinical Research, University of Basel, Basel, BS, 4031, Switzerland
| | - Christian Egloff
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
| | - Annegret Mündermann
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Spine Surgery, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Biomedical Engineering, University of Basel, Allschwil, BL, 4123, Switzerland
- Department of Clinical Research, University of Basel, Basel, BS, 4031, Switzerland
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Herger S, Vach W, Liphardt AM, Nüesch C, Egloff C, Mündermann A. Experimental-analytical approach to assessing mechanosensitive cartilage blood marker kinetics in healthy adults: dose-response relationship and interrelationship of nine candidate markers. F1000Res 2021; 10:490. [PMID: 35284064 PMCID: PMC8907551 DOI: 10.12688/f1000research.52159.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/15/2021] [Indexed: 11/23/2023] Open
Abstract
Purpose: To determine the suitability of selected blood biomarkers of articular cartilage as mechanosensitive markers and to investigate the dose-response relationship between ambulatory load magnitude and marker kinetics in response to load. Methods: Serum samples were collected from 24 healthy volunteers before and at three time points after a 30-minute walking stress test performed on three test days. In each experimental session, one of three ambulatory loads was applied: 100% body weight (BW); 80%BW; 120%BW. Serum concentrations of COMP, MMP-3, MMP-9, ADAMTS-4, PRG-4, CPII, C2C and IL-6 were assessed using commercial enzyme-linked immunosorbent assays. A two-stage analytical approach was used to determine the suitability of a biomarker by testing the response to the stress test (criterion I) and the dose-response relationship between ambulatory load magnitude and biomarker kinetics (criterion II). Results. COMP, MMP-3 and IL-6 at all three time points after, MMP-9 at 30 and 60 minutes after, and ADAMTS-4 and CPII at immediately after the stress test showed an average response to load or an inter-individual variation in response to load of up to 25% of pre-test levels. The relation to load magnitude on average or an inter-individual variation in this relationship was up to 8% from load level to load level. There was a positive correlation for the slopes of the change-load relationship between COMP and MMP-3, and a negative correlation for the slopes between COMP, MMP-3 and IL-6 with MMP-9, and COMP with IL6. Conclusions: COMP, MMP-3, IL-6, MMP-9, and ADAMTS-4 warrant further investigation in the context of articular cartilage mechanosensitivity and its role in joint degeneration and OA. While COMP seems to be able to reflect a rapid response, MMP-3 seems to reflect a slightly longer lasting, but probably also more distinct response. MMP-3 showed also the strongest association with the magnitude of load.
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Affiliation(s)
- Simon Herger
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Spine Surgery, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Biomedical Engineering, University of Basel, Allschwil, BL, 4123, Switzerland
| | - Werner Vach
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Clinical Research, University of Basel, Basel, BS, 4031, Switzerland
- Basel Academy for Quality and Research in Medicine, Basel, Switzerland
| | - Anna-Maria Liphardt
- Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nuremberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany
| | - Corina Nüesch
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Spine Surgery, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Biomedical Engineering, University of Basel, Allschwil, BL, 4123, Switzerland
- Department of Clinical Research, University of Basel, Basel, BS, 4031, Switzerland
| | - Christian Egloff
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
| | - Annegret Mündermann
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Spine Surgery, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Biomedical Engineering, University of Basel, Allschwil, BL, 4123, Switzerland
- Department of Clinical Research, University of Basel, Basel, BS, 4031, Switzerland
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Stotter C, Stojanović B, Bauer C, Rodríguez Ripoll M, Franek F, Klestil T, Nehrer S. Effects of Loading Conditions on Articular Cartilage in a Metal-on-Cartilage Pairing. J Orthop Res 2019; 37:2531-2539. [PMID: 31334864 PMCID: PMC6899800 DOI: 10.1002/jor.24426] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 07/15/2019] [Indexed: 02/04/2023]
Abstract
The aim of this in vitro study was to investigate the response of articular cartilage to frictional load when sliding against a metal implant, and identify potential mechanisms of damage to articular cartilage in a metal-on-cartilage pairing. Bovine osteochondral cylinders were reciprocally slid against metal cylinders (cobalt-chromium-molybdenum alloy) with several variations of load and sliding velocity using a microtribometer. The effects of different loads and velocities, and the resulting friction coefficients on articular cartilage, were evaluated by measuring histological and metabolic outcomes. Moreover, the biotribocorrosion of the metal was determined. Chondrocytes stimulated with high load and velocity showed increased metabolic activity and cartilage-specific gene expression. In addition, higher load and velocity resulted in biotribocorrosion of the metal implant and damage to the surface of the articular cartilage, whereas low velocity and a high coefficient of friction increased the expression of catabolic genes. Articular cartilage showed particular responses to load and velocity when sliding against a metal implant. Moreover, metal implants showed tribocorrosion. Therefore, corrosion particles may play a role in the mechano-biochemical wear of articular cartilage after implantation of a metal implant. These findings may be useful to surgeons performing resurfacing procedures and total knee arthroplasty. © 2019 The Authors. Journal of Orthopaedic Research® published by Wiley Periodicals, Inc. on behalf of Orthopaedic Research Society J Orthop Res 37:2531-2539, 2019.
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Affiliation(s)
- Christoph Stotter
- Faculty of Health and Medicine, Department for Health Sciences, Medicine and Research, Center for Regenerative MedicineDanube University KremsDr. Karl‐Dorrek‐Str. 30KremsA‐3500Austria,Department of Orthopedics and TraumatologyLK Baden‐Mödling‐HainburgWaltersdorfer Straße 75A‐2500BadenAustria
| | - Bojana Stojanović
- AC2T Research GmbHViktor Kaplan‐Straße 2A‐2700Wiener NeustadtAustria
| | - Christoph Bauer
- Faculty of Health and Medicine, Department for Health Sciences, Medicine and Research, Center for Regenerative MedicineDanube University KremsDr. Karl‐Dorrek‐Str. 30KremsA‐3500Austria
| | | | - Friedrich Franek
- AC2T Research GmbHViktor Kaplan‐Straße 2A‐2700Wiener NeustadtAustria
| | - Thomas Klestil
- Department of Orthopedics and TraumatologyLK Baden‐Mödling‐HainburgWaltersdorfer Straße 75A‐2500BadenAustria,Faculty of Health and Medicine, Department for Health Sciences, Medicine and ResearchDanube University KremsDr. Karl‐Dorrek‐Str. 30KremsA‐3500Austria
| | - Stefan Nehrer
- Faculty of Health and Medicine, Department for Health Sciences, Medicine and Research, Center for Regenerative MedicineDanube University KremsDr. Karl‐Dorrek‐Str. 30KremsA‐3500Austria
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