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Taylor CS, Barnes J, Prasad Koduri M, Haq S, Gregory DA, Roy I, D'Sa RA, Curran J, Haycock JW. Aminosilane Functionalized Aligned Fiber PCL Scaffolds for Peripheral Nerve Repair. Macromol Biosci 2023; 23:e2300226. [PMID: 37364159 DOI: 10.1002/mabi.202300226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/13/2023] [Indexed: 06/28/2023]
Abstract
Silane modification is a simple and cost-effective tool to modify existing biomaterials for tissue engineering applications. Aminosilane layer deposition has previously been shown to control NG108-15 neuronal cell and primary Schwann cell adhesion and differentiation by controlling deposition of ─NH2 groups at the submicron scale across the entirety of a surface by varying silane chain length. This is the first study toreport depositing 11-aminoundecyltriethoxysilane (CL11) onto aligned Polycaprolactone (PCL) scaffolds for peripheral nerve regeneration. Fibers are manufactured via electrospinning and characterized using water contact angle measurements, atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS). Confirmed modified fibers are investigated using in vitro cell culture of NG108-15 neuronal cells and primary Schwann cells to determine cell viability, cell differentiation, and phenotype. CL11-modified fibers significantly support NG108-15 neuronal cell and Schwann cell viability. NG108-15 neuronal cell differentiation maintains Schwann cell phenotype compared to unmodified PCL fiber scaffolds. 3D ex vivo culture of Dorsal root ganglion explants (DRGs) confirms further Schwann cell migration and longer neurite outgrowth from DRG explants cultured on CL11 fiber scaffolds compared to unmodified scaffolds. Thus, a reproducible and cost-effective tool is reported to modify biomaterials with functional amine groups that can significantly improve nerve guidance devices and enhance nerve regeneration.
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Affiliation(s)
- Caroline S Taylor
- Department of Materials Science & Engineering, Kroto Research Institute, Broad Lane, Sheffield, S3 7HQ, UK
| | - Joseph Barnes
- Department of Mechanical, Materials and Aerospace, School of Engineering, University of Liverpool, Harrison Hughes Building, Liverpool, L69 3GH, UK
| | - Manohar Prasad Koduri
- Department of Mechanical, Materials and Aerospace, School of Engineering, University of Liverpool, Harrison Hughes Building, Liverpool, L69 3GH, UK
| | - Shamsal Haq
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK
| | - David A Gregory
- Department of Materials Science & Engineering, Kroto Research Institute, Broad Lane, Sheffield, S3 7HQ, UK
| | - Ipsita Roy
- Department of Materials Science & Engineering, Kroto Research Institute, Broad Lane, Sheffield, S3 7HQ, UK
| | - Raechelle A D'Sa
- Department of Mechanical, Materials and Aerospace, School of Engineering, University of Liverpool, Harrison Hughes Building, Liverpool, L69 3GH, UK
| | - Judith Curran
- Department of Mechanical, Materials and Aerospace, School of Engineering, University of Liverpool, Harrison Hughes Building, Liverpool, L69 3GH, UK
| | - John W Haycock
- Department of Materials Science & Engineering, Kroto Research Institute, Broad Lane, Sheffield, S3 7HQ, UK
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Taylor CS, Chen R, D' Sa R, Hunt JA, Curran JM, Haycock JW. Cost effective optimised synthetic surface modification strategies for enhanced control of neuronal cell differentiation and supporting neuronal and Schwann cell viability. J Biomed Mater Res B Appl Biomater 2021; 109:1713-1723. [PMID: 33749114 DOI: 10.1002/jbm.b.34829] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 02/06/2021] [Accepted: 02/23/2021] [Indexed: 11/11/2022]
Abstract
Enriching a biomaterial surface with specific chemical groups has previously been considered for producing surfaces that influence cell response. Silane layer deposition has previously been shown to control mesenchymal stem cell adhesion and differentiation. However, it has not been used to investigate neuronal or Schwann cell responses in vitro to date. We report on the deposition of aminosilane groups for peripheral neurons and Schwann cells studying two chain lengths: (a) 3-aminopropyl triethoxysilane (short chain-SC) and (b) 11-aminoundecyltriethoxysilane (long chain-LC) by coating glass substrates. Surfaces were characterised by water contact angle, AFM and XPS. LC-NH2 was produced reproducibly as a homogenous surface with controlled nanotopography. Primary neuron and NG108-15 neuronal cell differentiation and primary Schwann cell responses were investigated in vitro by S100β, p75, and GFAP antigen expression. Both amine silane surface supported neuronal and Schwann cell growth; however, neuronal differentiation was greater on LC aminosilanes versus SC. Thus, we report that silane surfaces with an optimal chain length may have potential in peripheral nerve repair for the modification and improvement of nerve guidance devices.
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Affiliation(s)
- Caroline S Taylor
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
| | - Rui Chen
- Department of Mechanical, Materials and Aerospace, University of Liverpool, Liverpool, UK
| | - Raechelle D' Sa
- Department of Mechanical, Materials and Aerospace, University of Liverpool, Liverpool, UK
| | - John A Hunt
- Medical Technologies and Advanced Materials, Nottingham Trent University, Nottingham, UK
| | - Judith M Curran
- Department of Mechanical, Materials and Aerospace, University of Liverpool, Liverpool, UK
| | - John W Haycock
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
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Momtazi L, Dartt DA, Nilsen O, Eidet JR. Molecular layer deposition builds biocompatible substrates for epithelial cells. J Biomed Mater Res A 2018; 106:3090-3098. [DOI: 10.1002/jbm.a.36499] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 05/29/2018] [Accepted: 06/27/2018] [Indexed: 01/09/2023]
Affiliation(s)
- Leva Momtazi
- Department of Chemistry; University of Oslo; P.O.Box 1033 Blindern Oslo, NO, N-0315, Oslo Norway
| | - Darlene A. Dartt
- Schepens Eye Research Institute, Massachusetts Eye and Ear; Department of Ophthalmology, Harvard Medical School; 20 Staniford, St. Boston Massachusetts
| | - Ola Nilsen
- Department of Chemistry; University of Oslo; P.O.Box 1033 Blindern Oslo, NO, N-0315, Oslo Norway
| | - Jon Roger Eidet
- Department of Ophthalmology; Oslo University Hospital; Kirkeveien 166, 0407, Oslo Norway
- Department of Ophthalmology; Hospital of Southern Norway; Arendal, Sykehusveien 1, 4838, Arendal Norway
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Chen R, Hunt JA, Fawcett S, D'sa R, Akhtar R, Curran JM. The optimization and production of stable homogeneous amine enriched surfaces with characterized nanotopographical properties for enhanced osteoinduction of mesenchymal stem cells. J Biomed Mater Res A 2018; 106:1862-1877. [PMID: 29493081 DOI: 10.1002/jbm.a.36383] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 01/11/2018] [Accepted: 02/14/2018] [Indexed: 12/13/2022]
Abstract
Silane modification has been proposed as a powerful biomaterial surface modification tool. This is the first comprehensive investigation into the effect of silane chain length on the resultant properties of -NH2 silane monolayers and the associated osteoinductive properties of the surface. A range of -NH2 presenting silanes, chain length 3-11, were introduced to glass coverslips and characterized using water contact angles, atomic force microscopy, X-ray photoelectron spectroscopy, and Ninhydrin assays. The ability of the variation in chain length to form a homogenous layer across the entirety of the surfaces was also assessed. The osteoinductive potential of the resultant surfaces was evaluated by real-time polymerase chain reaction, immunocytochemistry, and von Kossa staining. Control of surface chemistry and topography was directly associated with changes in chain length. This resulted in the identification of a specific, chain length 11 (CL11) which significantly increased the osteoinductive properties of the modified materials. Only CL11 surfaces had a highly regular nano-topography/roughness which resulted in the formation of an appetite-like layer on the surface that induced a significantly enhanced osteoinductive response (increased expression of osteocalcin, CBFA1, sclerostin, and the production of a calcified matrix) across the entirety of the surface. © 2018 The Authors Journal of Biomedical Materials Research Part A Published by Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1862-1877, 2018.
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Affiliation(s)
- Rui Chen
- Department of Mechanical, Materials and Aerospace Engineering, School of Engineering, Harrison Hughes Building, University of Liverpool, Liverpool, L69 3GH, United Kingdom
| | - John A Hunt
- Medical Technologies and Advanced Materials, Nottingham Trent University, Nottingham, NG11 8NS, United Kingdom
| | - Sandra Fawcett
- Clinical Engineering, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, L69 3GA, United Kingdom
| | - Raechelle D'sa
- Department of Mechanical, Materials and Aerospace Engineering, School of Engineering, Harrison Hughes Building, University of Liverpool, Liverpool, L69 3GH, United Kingdom
| | - Riaz Akhtar
- Department of Mechanical, Materials and Aerospace Engineering, School of Engineering, Harrison Hughes Building, University of Liverpool, Liverpool, L69 3GH, United Kingdom
| | - Judith M Curran
- Department of Mechanical, Materials and Aerospace Engineering, School of Engineering, Harrison Hughes Building, University of Liverpool, Liverpool, L69 3GH, United Kingdom
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