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Delaey J, Parmentier L, Pyl L, Brancart J, Adriaensens P, Dobos A, Dubruel P, Van Vlierberghe S. Solid-State Crosslinkable, Shape-Memory Polyesters Serving Tissue Engineering. Macromol Rapid Commun 2023; 44:e2200955. [PMID: 36755500 DOI: 10.1002/marc.202200955] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Indexed: 02/10/2023]
Abstract
Acrylate-endcapped urethane-based precursors constituting a poly(D,L-lactide)/poly(ε-caprolactone) (PDLLA/PCL) random copolymer backbone are synthesized with linear and star-shaped architectures and various molar masses. It is shown that the glass transition and thus the actuation temperature could be tuned by varying the monomer content (0-8 wt% ε-caprolactone, Tg,crosslinked = 10-42 °C) in the polymers. The resulting polymers are analyzed for their physico-chemical properties and viscoelastic behavior (G'max = 9.6-750 kPa). The obtained polymers are subsequently crosslinked and their shape-memory properties are found to be excellent (Rr = 88-100%, Rf = 78-99.5%). Moreover, their potential toward processing via various additive manufacturing techniques (digital light processing, two-photon polymerization and direct powder extrusion) is evidenced with retention of their shape-memory effect. Additionally, all polymers are found to be biocompatible in direct contact in vitro cell assays using primary human foreskin fibroblasts (HFFs) through MTS assay (up to ≈100% metabolic activity relative to TCP) and live/dead staining (>70% viability).
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Affiliation(s)
- Jasper Delaey
- Polymer Chemistry & Biomaterials group (PBM), Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, 9000, Belgium
| | - Laurens Parmentier
- Polymer Chemistry & Biomaterials group (PBM), Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, 9000, Belgium
| | - Lincy Pyl
- Department of Mechanics of Materials and Constructions (MeMC), Vrije Universiteit Brussel (VUB), Brussels, 1050, Belgium
| | - Joost Brancart
- Physical Chemistry and Polymer Science (FYSC), Vrije Universiteit Brussel, Brussels, 1050, Belgium
| | - Peter Adriaensens
- Applied and Analytical Chemistry, Institute for Materials Research, Hasselt University, Diepenbeek, 3590, Belgium
| | - Agnes Dobos
- Polymer Chemistry & Biomaterials group (PBM), Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, 9000, Belgium.,BIO INX BV, Tech Lane 66, Zwijnaarde, 9052, Belgium
| | - Peter Dubruel
- Polymer Chemistry & Biomaterials group (PBM), Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, 9000, Belgium
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials group (PBM), Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, 9000, Belgium.,BIO INX BV, Tech Lane 66, Zwijnaarde, 9052, Belgium
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Delaey J, De Vos L, Koppen C, Dubruel P, Van Vlierberghe S, Van den Bogerd B. Tissue engineered scaffolds for corneal endothelial regeneration: a material's perspective. Biomater Sci 2022; 10:2440-2461. [PMID: 35343525 DOI: 10.1039/d1bm02023d] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Currently, the treatment of corneal diseases caused by damage to the corneal endothelium requires a donor cornea. Because of their limited availability (1 donor cornea for 70 patients in need), researchers are investigating alternative approaches that are independent of donor tissue. One of them includes the development of a tissue engineered scaffold onto which corneal endothelial cells are seeded. In order to function as a suitable substrate, some of its essential properties including thickness, permeability, transparency and mechanical strength should meet certain demands. Additionally, the membrane should be biocompatible and allow the formation of a functional endothelium on the surface. Many materials have already been investigated in this regard including natural, semi-synthetic and synthetic polymers. In the current review, we present an overview of their characteristics and provide a critical view on the methods exploited for material characterization. Next, also the suitability of scaffolds to serve their purpose is discussed along with an overview of natural tissues (e.g. amniotic membrane and lens capsule) previously investigated for this application. Eventually, we propose a consistent approach to be exploited ideally for membrane characterization in future research. This will allow a scientifically sound comparison of materials and membranes investigated by different research groups, hence benefitting research towards the creation of a suitable/optimal tissue engineered endothelial graft.
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Affiliation(s)
- Jasper Delaey
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Lobke De Vos
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Carina Koppen
- Antwerp Research Group for Ocular Science (ARGOS), Translational Neurosciences, Faculty of Medicine, University of Antwerp, Wilrijk, Belgium. .,Department of Ophthalmology, Antwerp University Hospital, Edegem, Belgium
| | - Peter Dubruel
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Bert Van den Bogerd
- Antwerp Research Group for Ocular Science (ARGOS), Translational Neurosciences, Faculty of Medicine, University of Antwerp, Wilrijk, Belgium.
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Van Hoorick J, Delaey J, Vercammen H, Van Erps J, Thienpont H, Dubruel P, Zakaria N, Koppen C, Van Vlierberghe S, Van den Bogerd B. Designer Descemet Membranes Containing PDLLA and Functionalized Gelatins as Corneal Endothelial Scaffold. Adv Healthc Mater 2020; 9:e2000760. [PMID: 32603022 DOI: 10.1002/adhm.202000760] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/10/2020] [Indexed: 01/08/2023]
Abstract
Corneal blindness is the fourth leading cause of visual impairment. Of specific interest is blindness due to a dysfunctional corneal endothelium which can only be treated by transplanting healthy tissue from a deceased donor. Unfortunately, corneal supply does not meet the demand with only one donor for every 70 patients. Therefore, there is a huge interest in tissue engineering of grafts consisting of an ultra-thin scaffold seeded with cultured endothelial cells. The present research describes the fabrication of such artificial Descemet membranes based on the combination of a biodegradable amorphous polyester (poly (d,l-lactic acid)) and crosslinkable gelatins. Four different crosslinkable gelatin derivatives are compared in terms of processing, membrane quality, and function, as well as biological performance in the presence of corneal endothelial cells. The membranes are fabricated through multi-step spincoating, including a sacrificial layer to allow for straightforward membrane detachment after production. As a consequence, ultrathin (<1 µm), highly transparent (>90%), semi-permeable membranes could be obtained with high biological potential. The membranes supported the characteristic morphology and correct phenotype of corneal endothelial cells while exhibiting similar proliferation rates as the positive control. As a consequence, the proposed membranes prove to be a promising synthetic alternative to donor tissue.
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Affiliation(s)
- Jasper Van Hoorick
- Polymer Chemistry & Biomaterials GroupCentre of Macromolecular Chemistry (CMaC)Department of Organic and Macromolecular ChemistryGhent University Ghent 9000 Belgium
- Brussels PhotonicsDepartment of Applied Physics and PhotonicsVrije Universiteit Brussel and Flanders Make Brussels 1050 Belgium
| | - Jasper Delaey
- Polymer Chemistry & Biomaterials GroupCentre of Macromolecular Chemistry (CMaC)Department of Organic and Macromolecular ChemistryGhent University Ghent 9000 Belgium
| | - Hendrik Vercammen
- Antwerp Research Group for Ocular Science (ARGOS)Translational NeurosciencesFaculty of MedicineUniversity of Antwerp Wilrijk 2610 Belgium
| | - Jürgen Van Erps
- Brussels PhotonicsDepartment of Applied Physics and PhotonicsVrije Universiteit Brussel and Flanders Make Brussels 1050 Belgium
| | - Hugo Thienpont
- Polymer Chemistry & Biomaterials GroupCentre of Macromolecular Chemistry (CMaC)Department of Organic and Macromolecular ChemistryGhent University Ghent 9000 Belgium
- Brussels PhotonicsDepartment of Applied Physics and PhotonicsVrije Universiteit Brussel and Flanders Make Brussels 1050 Belgium
| | - Peter Dubruel
- Polymer Chemistry & Biomaterials GroupCentre of Macromolecular Chemistry (CMaC)Department of Organic and Macromolecular ChemistryGhent University Ghent 9000 Belgium
| | - Nadia Zakaria
- Antwerp Research Group for Ocular Science (ARGOS)Translational NeurosciencesFaculty of MedicineUniversity of Antwerp Wilrijk 2610 Belgium
- Department of OphthalmologyAntwerp University Hospital Edegem 2650 Belgium
| | - Carina Koppen
- Antwerp Research Group for Ocular Science (ARGOS)Translational NeurosciencesFaculty of MedicineUniversity of Antwerp Wilrijk 2610 Belgium
- Department of OphthalmologyAntwerp University Hospital Edegem 2650 Belgium
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials GroupCentre of Macromolecular Chemistry (CMaC)Department of Organic and Macromolecular ChemistryGhent University Ghent 9000 Belgium
- Brussels PhotonicsDepartment of Applied Physics and PhotonicsVrije Universiteit Brussel and Flanders Make Brussels 1050 Belgium
| | - Bert Van den Bogerd
- Antwerp Research Group for Ocular Science (ARGOS)Translational NeurosciencesFaculty of MedicineUniversity of Antwerp Wilrijk 2610 Belgium
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Vagenende M, Graulus GJ, Delaey J, Van Hoorick J, Berghmans F, Thienpont H, Van Vlierberghe S, Dubruel P. Amorphous random copolymers of lacOCA and manOCA for the design of biodegradable polyesters with tuneable properties. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.06.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Orye E, Benoit Y, Coppieters R, Jeannin P, Vercruysse C, Delaey J, Delbeke MJ. A case of retinoblastoma, associated with histiocytosis-X and mosaicism of a deleted D-group chromosome (13q14→q31). Clin Genet 2008. [DOI: 10.1111/j.1399-0004.1982.tb01408.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Orye E, Benoit Y, Coppieters R, Jeannin P, Vercruysse C, Delaey J, Delbeke MJ. A case of retinoblastoma, associated with histiocytosis-X and mosaicism of a deleted D-group chromosome (13q14 leads to q31). Clin Genet 1982; 22:37-9. [PMID: 6983401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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