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Kapat K, Gondane P, Kumbhakarn S, Takle S, Sable R. Challenges and Opportunities in Developing Tracheal Substitutes for the Recovery of Long-Segment Defects. Macromol Biosci 2024:e2400054. [PMID: 39008817 DOI: 10.1002/mabi.202400054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 06/21/2024] [Indexed: 07/17/2024]
Abstract
Tracheal resection and reconstruction procedures are necessary when stenosis, tracheomalacia, tumors, vascular lesions, or tracheal injury cause a tracheal blockage. Replacement with a tracheal substitute is often recommended when the trauma exceeds 50% of the total length of the trachea in adults and 30% in children. Recently, tissue engineering and other advanced techniques have shown promise in fabricating biocompatible tracheal substitutes with physical, morphological, biomechanical, and biological characteristics similar to native trachea. Different polymers and biometals are explored. Even with limited success with tissue-engineered grafts in clinical settings, complete healing of tracheal defects remains a substantial challenge due to low mechanical strength and durability of the graft materials, inadequate re-epithelialization and vascularization, and restenosis. This review has covered a range of reconstructive and regenerative techniques, design criteria, the use of bioprostheses and synthetic grafts for the recovery of tracheal defects, as well as the traditional and cutting-edge methods of their fabrication, surface modification for increased immuno- or biocompatibility, and associated challenges.
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Affiliation(s)
- Kausik Kapat
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research Kolkata, 168, Maniktala Main Road, Kankurgachi, Kolkata, West Bengal, 700054, India
| | - Prashil Gondane
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research Kolkata, 168, Maniktala Main Road, Kankurgachi, Kolkata, West Bengal, 700054, India
| | - Sakshi Kumbhakarn
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research Kolkata, 168, Maniktala Main Road, Kankurgachi, Kolkata, West Bengal, 700054, India
| | - Shruti Takle
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research Kolkata, 168, Maniktala Main Road, Kankurgachi, Kolkata, West Bengal, 700054, India
| | - Rahul Sable
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research Kolkata, 168, Maniktala Main Road, Kankurgachi, Kolkata, West Bengal, 700054, India
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Ibrahim SW, Hamad TI, Haider J. Biological properties of polycaprolactone and barium titanate composite in biomedical applications. Sci Prog 2023; 106:368504231215942. [PMID: 38031343 PMCID: PMC10687994 DOI: 10.1177/00368504231215942] [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] [Indexed: 12/01/2023]
Abstract
The ceramic-polymer composite materials are widely known for their exceptional mechanical and biological properties. Polycaprolactone (PCL) is a biodegradable polymer material extensively used in various biomedical applications. At the same time, barium titanate (BT), a ceramic material, exhibits piezoelectric properties similar to bone, which is essential for osseointegration. Furthermore, a composite material that combines the benefits of PCL and BT results in an innovative composite material with enhanced properties for biomedical applications. Thus, this review is organised into three sections. Firstly, it aims to provide an overview of the current research on evaluating biological properties, including antibacterial activity, cytotoxicity and osseointegration, of PCL polymeric matrices in its pure form and reinforced structures with ceramics, polymers and natural extracts. The second section investigates the biological properties of BT, both in its pure form and in combination with other supporting materials. Finally, the third section provides a summary of the biological properties of the PCLBT composite material. Furthermore, the existing challenges of PCL, BT and their composites, along with future research directions, have been presented. Therefore, this review will provide a state-of-the-art understanding of the biological properties of PCL and BT composites as potential futuristic materials in biomedical applications.
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Affiliation(s)
- Sabreen Waleed Ibrahim
- Prosthodontic Department, College of Dentistry, Al Mustansiriyah University, Baghdad, Iraq
| | - Thekra Ismael Hamad
- Department of Prosthodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq
| | - Julfikar Haider
- Department of Engineering, Manchester Metropolitan University, Manchester, UK
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3
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Huidan Z, Kang J, Kim N, Heo S. Ex Vivo Biomechanical Assessment of Various Repair Techniques in a Rabbit Calcaneal Tendon Avulsion Model: Application of Polycaprolactone Plate. Vet Sci 2023; 10:vetsci10040289. [PMID: 37104444 PMCID: PMC10146963 DOI: 10.3390/vetsci10040289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/08/2023] [Accepted: 04/11/2023] [Indexed: 04/28/2023] Open
Abstract
This study was aimed at evaluating the biomechanical properties and gapping characteristics of tendon repair methods using a combination of a three-loop pulley (3LP) pattern, a titanium plate, and a polycaprolactone (PCL) plate in a rabbit gastrocnemius tendon (GT) model (n = 50). GTs were randomly assigned to five groups (n = 10/group). Transected GTs were repaired with a 3LP pattern alone or in conjunction with an epitendinous suture (ES), a 5-hole 1 mm PCL plate, a 5-hole 2 mm PCL plate, or a 5-hole 1.5 mm titanium plate. The yield, peak, and failure force, as well as the occurrence and force of 1-mm and 3-mm gapping were examined. The mean yield, peak, and failure force of the 3LP + titanium plate group were higher than that of other groups. The biomechanical properties of a 3LP + a 2 mm PCL plate were similar to 3LP + ES constructs in this model. In all specimens in all groups, 1 mm gap formation was observed. The frequency of 3 mm gap formation was 70% and 90% in the 3LP + 2 mm PCL plate group and the 3LP + 1.5 mm titanium plate group, respectively. Additional studies evaluating PCL plates to determine the effect on the healing and blood supply of tendon are needed.
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Affiliation(s)
- Zheng Huidan
- Department of Veterinary Surgery, College of Veterinary Medicine, Jeonbuk National University, 79 Gobong-ro, Iksan 54596, Republic of Korea
| | - Jinsu Kang
- Department of Veterinary Surgery, College of Veterinary Medicine, Jeonbuk National University, 79 Gobong-ro, Iksan 54596, Republic of Korea
| | - Namsoo Kim
- Department of Veterinary Surgery, College of Veterinary Medicine, Jeonbuk National University, 79 Gobong-ro, Iksan 54596, Republic of Korea
| | - Suyoung Heo
- Department of Veterinary Surgery, College of Veterinary Medicine, Jeonbuk National University, 79 Gobong-ro, Iksan 54596, Republic of Korea
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Li Z, Cheng S, Li A, Song C, Jiang A, Xu F, Chi H, Yan J, Chen G. Fabrication of BMP-2-peptide-Deferoxamine- and QK-peptide-functionalized nanoscaffolds and their application for bone defect treatment. J Tissue Eng Regen Med 2022; 16:1223-1237. [PMID: 36349393 DOI: 10.1002/term.3364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 10/07/2022] [Accepted: 10/23/2022] [Indexed: 11/11/2022]
Abstract
The microenvironment in the healing process of large bone defects requires suitable conditions to promote osteogenesis and angiogenesis. Coaxial electrospinning is a mature method in bone tissue engineering (BTE) and allows functional modification. Appropriate modification methods can be used to improve the bioactivity of scaffolds for BTE. In this study, coaxial electrospinning with QK peptide (a Vascular endothelial growth factor mimetic peptide) and BMP-2 peptide-DFO (BD) was performed to produce double-modified PQBD scaffolds with vascularizing and osteogenic features. The morphology of coaxially electrospun scaffolds was verified by scanning electron microscopy (SEM) and transmission electron microscopy. Laser scanning confocal microscopy and Fourier transform infrared spectroscopy confirmed that BD covalently bound to the surface of the P and PQ scaffolds. In vitro, the PQBD scaffold promoted the adhesion and proliferation of bone marrow stromal cells (BMSCs). Both QK peptide and BD showed sustainable release and preservation of biological activity, enhancing the osteogenic differentiation of BMSCs and the migration of human umbilical vein endothelial cells and promoting angiogenesis. The combined ability of these factors to promote osteogenesis and angiogenesis is superior to that of each alone. In vivo, the PQBD scaffold was implanted into the bone defect, and after 8 weeks, the defect area was almost completely covered by new bone tissue. Histology showed more mature bone tissue and more blood vessels. PQBD scaffolds promote both angiogenesis and osteogenesis, offering a promising approach to enhance bone regeneration in the treatment of large bone defects.
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Affiliation(s)
- Zecheng Li
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang, China
| | - Shi Cheng
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang, China
| | - Ang Li
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang, China
| | - Chengchao Song
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang, China
| | - Anlong Jiang
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang, China
| | - Fangxing Xu
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang, China
| | - Hui Chi
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang, China
| | - Jinglong Yan
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Guanghua Chen
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang, China
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Outcome Analysis of Osseous Ingrowth in an Artificially Created Gap Non-union Using the Novel 3D Biodegradable Polycaprolactone Poly-l-Lactide Polymer Scaffold: Insights from an Experimental Study. Indian J Orthop 2022; 56:1410-1416. [PMID: 35928653 PMCID: PMC9283636 DOI: 10.1007/s43465-022-00657-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 05/06/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND Synthetic biopolymers have been widely used to manage bone effects in recent years. The study aims to analyse the ability to repair artificially created ulnar bone defects with the scaffold made of Polycaprolactone (PCL) and investigate the material's feasibility as a bone graft substitute. METHOD We have tested a novel 3D biodegradable Polycaprolactone Poly-l-Lactide polymer scaffold in an experimental animal model. 14 adults New Zealand white rabbits were used to create the ulnar defect model of 10 mm in length, and randomly divided into group A (test-12 rabbits), group B (control-3 rabbits). The defect area was implanted with the PCL scaffold in the test group, whereas it was left as such in the control group. The repairing effect was observed by gross, histology, radiology, and the Scanning electron microscopy (SEM) at 4, 8, and 12 weeks. Cook's scoring was used to assess the radiological parameters. RESULTS Histological and radiological results showed better quality of bone regeneration in the defect area at 12 week follow-up period. The SEM image at that period showed impregnation of the osteogenic cells in the surface and pores of the scaffold material. It was evident that the scaffold was thoroughly degraded, corresponding with osteogenesis. New bone formation was statistically significant in the test group than in the control group. CONCLUSION The Polycaprolactone Poly-l-Lactide polymer scaffold is biodegradable in-vivo at a suitable half-life. It has an excellent porous structure, no tissue toxicity, excellent mechanical strength, high osteogenesis potential, and osteoconductivity. Therefore, it can be used as bone graft material in the gap non-union and as a void filler in bone defects.
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6
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Effect of μPlasma Modification on the Wettability and the Ageing Behaviour of Glass Fibre Reinforced Polyamide 6 (GFPA6). MATERIALS 2021; 14:ma14247721. [PMID: 34947314 PMCID: PMC8703427 DOI: 10.3390/ma14247721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/09/2021] [Accepted: 12/10/2021] [Indexed: 12/19/2022]
Abstract
Glass fibre reinforced polyamide 6 (GFPA6) thermoplastic composites (TPCs) are promising materials with excellent properties, but due to their low surface free energy they are usually difficult to wet, and therefore, possesses poor adhesion properties. μPlasma modification offers potential solutions to this problem through functionalisation of the GFPA6 surface. In this study, the effect of μPlasma on the wetting behaviour of GFPA6 surfaces was investigated. Following single μPlasma treatment scans of GFPA6 samples, a substantial enhancement in wettability was observed. However, the effect of the μPlasma modification was subject to an ageing (hydrophobic recovery) phenomenon, although the enhancement was still partially maintained after 4 weeks. The ageing process was slower when the GFPA6 material was pre-dried and stored in low humidity conditions, thereby demonstrating the importance of the storage environment to the rate of ageing. Orientation of the fibres to the observed contact angle was found to be crucial for obtaining reproducible measurements with lower deviation. The influence of testing liquid, droplet volume and surface texture on the repeatability of the measured contact angle were also investigated.
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7
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Siddiqui N, Kishori B, Rao S, Anjum M, Hemanth V, Das S, Jabbari E. Electropsun Polycaprolactone Fibres in Bone Tissue Engineering: A Review. Mol Biotechnol 2021; 63:363-388. [PMID: 33689142 DOI: 10.1007/s12033-021-00311-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 02/20/2021] [Indexed: 01/17/2023]
Abstract
Regeneration of bone tissue requires novel load bearing, biocompatible materials that support adhesion, spreading, proliferation, differentiation, mineralization, ECM production and maturation of bone-forming cells. Polycaprolactone (PCL) has many advantages as a biomaterial for scaffold production including tuneable biodegradation, relatively high mechanical toughness at physiological temperature. Electrospinning produces nanofibrous porous matrices that mimic many properties of natural tissue extracellular matrix with regard to surface area, porosity and fibre alignment. The biocompatibility and hydrophilicity of PCL nanofibres can be improved by combining PCL with other biomaterials to form composite scaffolds for bone regeneration. This work reviews the most recent research on synthesis, characterization and cellular response to nanofibrous PCL scaffolds and the composites of PCL with other natural and synthetic materials for bone tissue engineering.
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Affiliation(s)
- Nadeem Siddiqui
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India.
| | - Braja Kishori
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | - Saranya Rao
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | - Mohammad Anjum
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | - Venkata Hemanth
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | - Swati Das
- Department of Genetic Engineering, SRM Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Esmaiel Jabbari
- Biomaterials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA
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Afewerki S, Bassous N, Harb SV, Corat MAF, Maharjan S, Ruiz-Esparza GU, de Paula MMM, Webster TJ, Tim CR, Viana BC, Wang D, Wang X, Marciano FR, Lobo AO. Engineering multifunctional bactericidal nanofibers for abdominal hernia repair. Commun Biol 2021; 4:233. [PMID: 33608611 PMCID: PMC7896057 DOI: 10.1038/s42003-021-01758-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 01/23/2021] [Indexed: 02/06/2023] Open
Abstract
The engineering of multifunctional surgical bactericidal nanofibers with inherent suitable mechanical and biological properties, through facile and cheap fabrication technology, is a great challenge. Moreover, hernia, which is when organ is pushed through an opening in the muscle or adjacent tissue due to damage of tissue structure or function, is a dire clinical challenge that currently needs surgery for recovery. Nevertheless, post-surgical hernia complications, like infection, fibrosis, tissue adhesions, scaffold rejection, inflammation, and recurrence still remain important clinical problems. Herein, through an integrated electrospinning, plasma treatment and direct surface modification strategy, multifunctional bactericidal nanofibers were engineered showing optimal properties for hernia repair. The nanofibers displayed good bactericidal activity, low inflammatory response, good biodegradation, as well as optimal collagen-, stress fiber- and blood vessel formation and associated tissue ingrowth in vivo. The disclosed engineering strategy serves as a prominent platform for the design of other multifunctional materials for various biomedical challenges.
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Affiliation(s)
- Samson Afewerki
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
- Division of Health Sciences and Technology, Harvard University ‒ Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Nicole Bassous
- Nanomedicine Laboratory, Department of Chemical Engineering, Northeastern University, Boston, MA, USA
| | - Samarah Vargas Harb
- Nanomedicine Laboratory, Department of Chemical Engineering, Northeastern University, Boston, MA, USA
- Institute of Chemistry, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Marcus Alexandre F Corat
- Multidisciplinary Center for Biological Research, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Sushila Maharjan
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Division of Health Sciences and Technology, Harvard University ‒ Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Guillermo U Ruiz-Esparza
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Division of Health Sciences and Technology, Harvard University ‒ Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Mirian M M de Paula
- Multidisciplinary Center for Biological Research, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Thomas J Webster
- Nanomedicine Laboratory, Department of Chemical Engineering, Northeastern University, Boston, MA, USA
| | | | - Bartolomeu Cruz Viana
- LIMAV - Interdisciplinary Laboratory for Advanced Materials, Materials Science & Engineering Graduate Program, UFPI - Federal University of Piaui, Teresina, Piaui, Brazil
- Department of Physics, Federal University of Piaui, Teresina, Piaui, Brazil
| | - Danquan Wang
- Nanomedicine Laboratory, Department of Chemical Engineering, Northeastern University, Boston, MA, USA
| | - Xichi Wang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Division of Health Sciences and Technology, Harvard University ‒ Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Fernanda Roberta Marciano
- Nanomedicine Laboratory, Department of Chemical Engineering, Northeastern University, Boston, MA, USA
- Department of Physics, Federal University of Piaui, Teresina, Piaui, Brazil
| | - Anderson Oliveira Lobo
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
- Division of Health Sciences and Technology, Harvard University ‒ Massachusetts Institute of Technology, Cambridge, MA, USA.
- LIMAV - Interdisciplinary Laboratory for Advanced Materials, Materials Science & Engineering Graduate Program, UFPI - Federal University of Piaui, Teresina, Piaui, Brazil.
- Department of Chemistry, Massachusetts Institute of Technology, MIT, Cambridge, MA, USA.
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9
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Mehrban N, Cardinale D, Gallo SC, Lee DDH, Arne Scott D, Dong H, Bowen J, Woolfson DN, Birchall MA, O'Callaghan C. α-Helical peptides on plasma-treated polymers promote ciliation of airway epithelial cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 122:111935. [PMID: 33641925 DOI: 10.1016/j.msec.2021.111935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/11/2021] [Accepted: 01/30/2021] [Indexed: 11/30/2022]
Abstract
Airway respiratory epithelium forms a physical barrier through intercellular tight junctions, which prevents debris from passing through to the internal environment while ciliated epithelial cells expel particulate-trapping mucus up the airway. Polymeric solutions to loss of airway structure and integrity have been unable to fully restore functional epithelium. We hypothesised that plasma treatment of polymers would permit adsorption of α-helical peptides and that this would promote functional differentiation of airway epithelial cells. Five candidate plasma compositions are compared; Air, N2, H2, H2:N2 and Air:N2. X-ray photoelectron spectroscopy shows changes in at% N and C 1s peaks after plasma treatment while electron microscopy indicates successful adsorption of hydrogelating self-assembling fibres (hSAF) on all samples. Subsequently, adsorbed hSAFs support human nasal epithelial cell attachment and proliferation and induce differentiation at an air-liquid interface. Transepithelial measurements show that the cells form tight junctions and produce cilia beating at the normal expected frequency of 10-11 Hz after 28 days in culture. The synthetic peptide system described in this study offers potential superiority as an epithelial regeneration substrate over present "gold-standard" materials, such as collagen, as they are controllable and can be chemically functionalised to support a variety of in vivo environments. Using the hSAF peptides described here in combination with plasma-treated polymeric surfaces could offer a way of improving the functionality and integration of implantable polymers for aerodigestive tract reconstruction and regeneration.
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Affiliation(s)
- Nazia Mehrban
- UCL Ear Institute, University College London, 332 Grays Inn Rd, London WC1X 8EE, UK.
| | - Daniela Cardinale
- Infection, Immunity and Inflammation Department, UCL Great Ormond Street Institute of Child Health, University College London, 30 Guilford St, London WC1N 1EH, UK
| | - Santiago C Gallo
- Institute for Frontier Materials, Deakin University, 75 Pigdons Rd, Victoria, VIC 3216, Australia
| | - Dani D H Lee
- Infection, Immunity and Inflammation Department, UCL Great Ormond Street Institute of Child Health, University College London, 30 Guilford St, London WC1N 1EH, UK
| | - D Arne Scott
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK
| | - Hanshan Dong
- School of Metallurgy and Materials, University of Birmingham, Elms Rd, Birmingham B15 2SE, UK
| | - James Bowen
- School of Engineering & Innovation, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK
| | - Derek N Woolfson
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK; School of Biochemistry, University of Bristol, University Walk, Bristol BS8 1TD, UK; Bristol BioDesign Institute, University of Bristol, 24 Tyndall Avenue, Bristol BS8 1TQ, UK
| | - Martin A Birchall
- UCL Ear Institute, University College London, 332 Grays Inn Rd, London WC1X 8EE, UK
| | - Christopher O'Callaghan
- Infection, Immunity and Inflammation Department, UCL Great Ormond Street Institute of Child Health, University College London, 30 Guilford St, London WC1N 1EH, UK
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10
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Dwivedi R, Kumar S, Pandey R, Mahajan A, Nandana D, Katti DS, Mehrotra D. Polycaprolactone as biomaterial for bone scaffolds: Review of literature. J Oral Biol Craniofac Res 2020; 10:381-388. [PMID: 31754598 PMCID: PMC6854079 DOI: 10.1016/j.jobcr.2019.10.003] [Citation(s) in RCA: 281] [Impact Index Per Article: 70.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 10/31/2019] [Indexed: 12/13/2022] Open
Abstract
Bone tissue engineering using polymer based scaffolds have been studied a lot in last decades. Considering the qualities of all the polymers desired to be used as scaffolds, Polycaprolactone (PCL) polyester apart from being biocompatible and biodegradable qualifies to an appreciable level due its easy availability, cost efficacy and suitability for modification. Its adjustable physio-chemical state, biological properties and mechanical strength renders it to withstand physical, chemical and mechanical, insults without significant loss of its properties. This review aims to critically analyse the efficacy of PCL as a biomaterial for bone scaffolds.
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Affiliation(s)
- Ruby Dwivedi
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, KGMU, Lucknow, UP, India
| | - Sumit Kumar
- DHR-MRU, Faculty of Dental Sciences, KGMU, Lucknow, UP, India
| | - Rahul Pandey
- DHR-MRU, Faculty of Dental Sciences, KGMU, Lucknow, UP, India
| | - Aman Mahajan
- Department of Biological Sciences and Bioengineering, IIT Kanpur, UP, India
| | - Deepti Nandana
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, KGMU, Lucknow, UP, India
| | - Dhirendra S. Katti
- Department of Biological Sciences and Bioengineering, IIT Kanpur, UP, India
| | - Divya Mehrotra
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, KGMU, Lucknow, UP, India
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11
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Cassan D, Becker A, Glasmacher B, Roger Y, Hoffmann A, Gengenbach TR, Easton CD, Hänsch R, Menzel H. Blending chitosan‐g‐poly(caprolactone) with poly(caprolactone) by electrospinning to produce functional fiber mats for tissue engineering applications. J Appl Polym Sci 2019. [DOI: 10.1002/app.48650] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Dominik Cassan
- Technische Universität Braunschweig, Institute for Technical Chemistry Braunschweig Germany
| | - Alexander Becker
- Institute for Multiphase Processes, Gottfried Wilhelm Leibniz Universität Hannover Hannover Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE) Hannover Germany
| | - Birgit Glasmacher
- Institute for Multiphase Processes, Gottfried Wilhelm Leibniz Universität Hannover Hannover Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE) Hannover Germany
| | - Yvonne Roger
- Department of Orthopedic SurgeryHannover Medical School, Graded Implants and Regenerative Strategies Hannover Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE) Hannover Germany
| | - Andrea Hoffmann
- Department of Orthopedic SurgeryHannover Medical School, Graded Implants and Regenerative Strategies Hannover Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE) Hannover Germany
| | | | | | - Robert Hänsch
- Technische Universität Braunschweig, Institute of Plant Biology Braunschweig Germany
| | - Henning Menzel
- Technische Universität Braunschweig, Institute for Technical Chemistry Braunschweig Germany
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12
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Gniesmer S, Brehm R, Hoffmann A, de Cassan D, Menzel H, Hoheisel AL, Glasmacher B, Willbold E, Reifenrath J, Wellmann M, Ludwig N, Tavassol F, Zimmerer R, Gellrich NC, Kampmann A. In vivo analysis of vascularization and biocompatibility of electrospun polycaprolactone fibre mats in the rat femur chamber. J Tissue Eng Regen Med 2019; 13:1190-1202. [PMID: 31025510 PMCID: PMC6771623 DOI: 10.1002/term.2868] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 04/12/2019] [Accepted: 04/15/2019] [Indexed: 12/12/2022]
Abstract
In orthopaedic medicine, connective tissues are often affected by traumatic or degenerative injuries, and surgical intervention is required. Rotator cuff tears are a common cause of shoulder pain and disability among adults. The development of graft materials for bridging the gap between tendon and bone after chronic rotator cuff tears is essentially required. The limiting factor for the clinical success of a tissue engineering construct is a fast and complete vascularization of the construct. Otherwise, immigrating cells are not able to survive for a longer period of time, resulting in the failure of the graft material. The femur chamber allows the observation of microhaemodynamic parameters inside implants located in close vicinity to the femur in repeated measurements in vivo. We compared a porous polymer patch (a commercially available porous polyurethane‐based scaffold from Biomerix™) with electrospun polycaprolactone (PCL) fibre mats and chitosan (CS)‐graft‐PCL modified electrospun PCL (CS‐g‐PCL) fibre mats in vivo. By means of intravital fluorescence microscopy, microhaemodynamic parameters were analysed repetitively over 20 days at intervals of 3 to 4 days. CS‐g‐PCL modified fibre mats showed a significantly increased vascularization at Day 10 compared with Day 6 and at Day 14 compared with the porous polymer patch and the unmodified PCL fibre mats at the same day. These results could be verified by histology. In conclusion, a clear improvement in terms of vascularization and biocompatibility is achieved by graft‐copolymer modification compared with the unmodified material.
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Affiliation(s)
- Sarah Gniesmer
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Hannover, Germany.,NIFE-Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Hannover, Germany
| | - Ralph Brehm
- Institute for Anatomy, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Andrea Hoffmann
- NIFE-Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Hannover, Germany.,Department of Orthopedic Surgery, Laboratory for Biomechanics and Biomaterials, Graded Implants and Regenerative Strategies, Hannover Medical School, Hannover, Germany
| | - Dominik de Cassan
- Institute for Technical Chemistry, University of Technology, Braunschweig, Germany
| | - Henning Menzel
- Institute for Technical Chemistry, University of Technology, Braunschweig, Germany
| | - Anna-Lena Hoheisel
- NIFE-Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Hannover, Germany.,Institute for Multiphase Processes, Leibniz University of Hannover, Hannover, Germany
| | - Birgit Glasmacher
- NIFE-Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Hannover, Germany.,Institute for Multiphase Processes, Leibniz University of Hannover, Hannover, Germany
| | - Elmar Willbold
- NIFE-Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Hannover, Germany.,Department of Orthopedic Surgery, Hannover Medical School, Hannover, Germany
| | - Janin Reifenrath
- NIFE-Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Hannover, Germany.,Department of Orthopedic Surgery, Hannover Medical School, Hannover, Germany
| | - Mathias Wellmann
- Department of Orthopedic Surgery, Hannover Medical School, Hannover, Germany
| | - Nils Ludwig
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Frank Tavassol
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Hannover, Germany
| | - Ruediger Zimmerer
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Hannover, Germany
| | - Nils-Claudius Gellrich
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Hannover, Germany
| | - Andreas Kampmann
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Hannover, Germany.,NIFE-Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Hannover, Germany
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13
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Attachment of nanoparticulate drug-release systems on poly(ε-caprolactone) nanofibers via a graftpolymer as interlayer. Colloids Surf B Biointerfaces 2018; 163:309-320. [DOI: 10.1016/j.colsurfb.2017.12.050] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 12/20/2017] [Accepted: 12/27/2017] [Indexed: 12/22/2022]
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14
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Kosobrodova E, Kondyurin A, Chrzanowski W, Theodoropoulos C, Morganti E, Hutmacher D, Bilek MMM. Effect of plasma immersion ion implantation on polycaprolactone with various molecular weights and crystallinity. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 29:5. [PMID: 29243087 DOI: 10.1007/s10856-017-6009-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 11/23/2017] [Indexed: 06/07/2023]
Abstract
Polycaprolactone with five different molecular weights was spin-coated on silicon wafers and plasma immersion ion implanted (PIII) with ion fluence in the range 5 × 1014-2 × 1016 ions/cm2. The effects of PIII treatment on the optical properties, chemical structure, crystallinity, morphology, gel fraction formation and wettability were investigated. As in the case of a number of previously studied polymers, oxidation and hydrophobic recovery of the PIII treated PCL follow second order kinetics. CAPA 6250, which has the lowest molecular weight and the highest degree of crystallinity of the untreated PCL films studied, has the highest carbonization of the modified layer after PIII treatment. Untreated medical grade PCL films, mPCL PC12 (Perstorp) and mPCL OsteoporeTM have similar chemical structures and crystallinity. Accordingly, the chemical and structural transformations caused by PIII treatment and post-treatment oxidation are almost identical for these two polymers. In general, PIII treatment destroys the nano-scale lamellar structure and results in a reduction of PCL crystallinity. Examination after washing PIII treated PCL films in toluene confirmed our hypothesis that cross-linking due to PIII treatment is significantly higher in semi-crystalline PCL as compared with amorphous polymers.
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Affiliation(s)
- Elena Kosobrodova
- School of Physics, University of Sydney, Sydney, NSW, 2006, Australia.
| | - Alexey Kondyurin
- School of Physics, University of Sydney, Sydney, NSW, 2006, Australia
| | - Wojciech Chrzanowski
- Faculty of Pharmacy, University of Sydney, Sydney, NSW, 2006, Australia
- Australian Institute of Nanoscale Science and Technology, University of Sydney, Sydney, NSW, 2006, Australia
| | - Christina Theodoropoulos
- Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD, 4059, Australia
| | - Elena Morganti
- Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD, 4059, Australia
| | - Dietmar Hutmacher
- Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD, 4059, Australia
| | - Marcela M M Bilek
- School of Physics, University of Sydney, Sydney, NSW, 2006, Australia
- Australian Institute of Nanoscale Science and Technology, University of Sydney, Sydney, NSW, 2006, Australia
- School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney, NSW, 2006, Australia
- Charles Perkins Centre, University of Sydney, Sydney, NSW, 2006, Australia
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15
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Munj HR, Lannutti JJ, Tomasko DL. Understanding Behavior of Polycaprolactone–Gelatin Blends under High Pressure CO2. POLYMER SCIENCE SERIES A 2017. [DOI: 10.1134/s0965545x17060086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Kosorn W, Sakulsumbat M, Uppanan P, Kaewkong P, Chantaweroad S, Jitsaard J, Sitthiseripratip K, Janvikul W. PCL/PHBV blended three dimensional scaffolds fabricated by fused deposition modeling and responses of chondrocytes to the scaffolds. J Biomed Mater Res B Appl Biomater 2016; 105:1141-1150. [DOI: 10.1002/jbm.b.33658] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 02/10/2016] [Accepted: 03/02/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Wasana Kosorn
- Biomedical Engineering Research Unit, National Metal and Materials Technology Center; Klong Luang Pathumthani 12120 Thailand
| | - Morakot Sakulsumbat
- Biomedical Engineering Research Unit, National Metal and Materials Technology Center; Klong Luang Pathumthani 12120 Thailand
| | - Paweena Uppanan
- Biomedical Engineering Research Unit, National Metal and Materials Technology Center; Klong Luang Pathumthani 12120 Thailand
| | - Pakkanun Kaewkong
- Biomedical Engineering Research Unit, National Metal and Materials Technology Center; Klong Luang Pathumthani 12120 Thailand
| | - Surapol Chantaweroad
- Biomedical Engineering Research Unit, National Metal and Materials Technology Center; Klong Luang Pathumthani 12120 Thailand
| | - Jaturong Jitsaard
- Biomedical Engineering Research Unit, National Metal and Materials Technology Center; Klong Luang Pathumthani 12120 Thailand
| | - Kriskrai Sitthiseripratip
- Biomedical Engineering Research Unit, National Metal and Materials Technology Center; Klong Luang Pathumthani 12120 Thailand
| | - Wanida Janvikul
- Biomedical Engineering Research Unit, National Metal and Materials Technology Center; Klong Luang Pathumthani 12120 Thailand
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17
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Zhao Y, Tan K, Zhou Y, Ye Z, Tan WS. A combinatorial variation in surface chemistry and pore size of three-dimensional porous poly(ε-caprolactone) scaffolds modulates the behaviors of mesenchymal stem cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 59:193-202. [PMID: 26652364 DOI: 10.1016/j.msec.2015.10.017] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 09/28/2015] [Accepted: 10/05/2015] [Indexed: 12/23/2022]
Abstract
Biomaterial properties play significant roles in controlling cellular behaviors. The objective of the present study was to investigate how pore size and surface chemistry of three-dimensional (3D) porous scaffolds regulate the fate of mesenchymal stem cells (MSCs) in vitro in combination. First, on poly(ε-caprolactone) (PCL) films, the hydrolytic treatment was found to stimulate the adhesion, spreading and proliferation of human MSCs (hMSCs) in comparison with pristine films, while the aminolysis showed mixed effects. Then, 3D porous PCL scaffolds with varying pore sizes (100-200μm, 200-300μm and 300-450μm) were fabricated and subjected to either hydrolysis or aminolysis. It was found that a pore size of 200-300μm with hydrolysis in 3D scaffolds was the most favorable condition for growth of hMSCs. Importantly, while a pore size of 200-300μm with hydrolysis for 1h supported the best osteogenic differentiation of hMSCs, the chondrogenic differentiation was greatest in scaffolds with a pore size of 300-450μm and treated with aminolysis for 1h. Taken together, these results suggest that surface chemistry and pore size of 3D porous scaffolds may potentially have a synergistic impact on the behaviors of MSCs.
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Affiliation(s)
- Yingdi Zhao
- State Key Laboratory of Bioreactor Engineering, School of Bioengineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ke Tan
- State Key Laboratory of Bioreactor Engineering, School of Bioengineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yan Zhou
- State Key Laboratory of Bioreactor Engineering, School of Bioengineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhaoyang Ye
- State Key Laboratory of Bioreactor Engineering, School of Bioengineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Wen-Song Tan
- State Key Laboratory of Bioreactor Engineering, School of Bioengineering, East China University of Science and Technology, Shanghai 200237, China
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18
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Jones D, Park D, Anghelina M, Pécot T, Machiraju R, Xue R, Lannutti JJ, Thomas J, Cole SL, Moldovan L, Moldovan NI. Actin grips: circular actin-rich cytoskeletal structures that mediate the wrapping of polymeric microfibers by endothelial cells. Biomaterials 2015; 52:395-406. [PMID: 25818446 PMCID: PMC4418805 DOI: 10.1016/j.biomaterials.2015.02.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 02/03/2015] [Indexed: 01/13/2023]
Abstract
Interaction of endothelial-lineage cells with three-dimensional substrates was much less studied than that with flat culture surfaces. We investigated the in vitro attachment of both mature endothelial cells (ECs) and of less differentiated EC colony-forming cells to poly-ε-capro-lactone (PCL) fibers with diameters in 5-20 μm range ('scaffold microfibers', SMFs). We found that notwithstanding the poor intrinsic adhesiveness to PCL, both cell types completely wrapped the SMFs after long-term cultivation, thus attaining a cylindrical morphology. In this system, both EC types grew vigorously for more than a week and became increasingly more differentiated, as shown by multiplexed gene expression. Three-dimensional reconstructions from multiphoton confocal microscopy images using custom software showed that the filamentous (F) actin bundles took a conspicuous ring-like organization around the SMFs. Unlike the classical F-actin-containing stress fibers, these rings were not associated with either focal adhesions or intermediate filaments. We also demonstrated that plasma membrane boundaries adjacent to these circular cytoskeletal structures were tightly yet dynamically apposed to the SMFs, for which reason we suggest to call them 'actin grips'. In conclusion, we describe a particular form of F-actin assembly with relevance for cytoskeletal organization in response to biomaterials, for endothelial-specific cell behavior in vitro and in vivo, and for tissue engineering.
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Affiliation(s)
- Desiree Jones
- Department of Internal Medicine, The Ohio State University, Columbus, OH, 43210, USA
| | - DoYoung Park
- Department of Computer Sciences and Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Mirela Anghelina
- Department of Internal Medicine, The Ohio State University, Columbus, OH, 43210, USA
| | - Thierry Pécot
- Department of Internal Medicine, The Ohio State University, Columbus, OH, 43210, USA; Department of Computer Sciences and Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Raghu Machiraju
- Department of Computer Sciences and Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Ruipeng Xue
- Department of Materials Sciences, The Ohio State University, Columbus, OH, 43210, USA
| | - John J Lannutti
- Department of Materials Sciences, The Ohio State University, Columbus, OH, 43210, USA
| | - Jessica Thomas
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Sara L Cole
- Campus Microscopy and Imaging Facility, The Ohio State University, Columbus, OH, 43210, USA
| | - Leni Moldovan
- Department of Internal Medicine, The Ohio State University, Columbus, OH, 43210, USA
| | - Nicanor I Moldovan
- Department of Internal Medicine, The Ohio State University, Columbus, OH, 43210, USA.
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19
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Ali Akbari Ghavimi S, Ebrahimzadeh MH, Solati-Hashjin M, Abu Osman NA. Polycaprolactone/starch composite: Fabrication, structure, properties, and applications. J Biomed Mater Res A 2014; 103:2482-98. [DOI: 10.1002/jbm.a.35371] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 10/28/2014] [Accepted: 11/13/2014] [Indexed: 11/12/2022]
Affiliation(s)
- Soheila Ali Akbari Ghavimi
- Department of Biomedical Engineering; Faculty of Engineering; University of Malaya; 50603 Kuala Lumpur Malaysia
| | | | - Mehran Solati-Hashjin
- Department of Biomedical Engineering; Faculty of Engineering; University of Malaya; 50603 Kuala Lumpur Malaysia
- Department of Biomedical Engineering; Amirkabir University of Technology; 15914 Tehran Iran
| | - Noor Azuan Abu Osman
- Department of Biomedical Engineering; Faculty of Engineering; University of Malaya; 50603 Kuala Lumpur Malaysia
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20
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Baranov P, Michaelson A, Kundu J, Carrier RL, Young M. Interphotoreceptor matrix-poly(ϵ-caprolactone) composite scaffolds for human photoreceptor differentiation. J Tissue Eng 2014; 5:2041731414554139. [PMID: 25383176 PMCID: PMC4221930 DOI: 10.1177/2041731414554139] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 09/09/2014] [Indexed: 12/24/2022] Open
Abstract
Tissue engineering has been widely applied in different areas of regenerative medicine, including retinal regeneration. Typically, artificial biopolymers require additional surface modification (e.g. with arginine–glycine–aspartate-containing peptides or adsorption of protein, such as fibronectin), before cell seeding. Here, we describe an alternative approach for scaffold design: the manufacture of hybrid interphotoreceptor matrix-poly (ϵ-caprolactone) scaffolds, in which the insoluble extracellular matrix of the retina is incorporated into a biodegradable polymer well suited for transplantation. The incorporation of interphotoreceptor matrix did not change the topography of polycaprolactone film, although it led to a slight increase in hydrophilic properties (water contact angle measurements). This hybrid scaffold provided sufficient stimuli for human retinal progenitor cell adhesion and inhibited proliferation, leading to differentiation toward photoreceptor cells (expression of Crx, Nrl, rhodopsin, ROM1). This scaffold may be used for transplantation of retinal progenitor cells and their progeny to treat retinal degenerative disorders.
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Affiliation(s)
- Petr Baranov
- The Schepens Eye Research Institute, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - Andrew Michaelson
- Department of Chemical Engineering, Northeastern University, Boston, MA, USA
| | - Joydip Kundu
- Department of Chemical Engineering, Northeastern University, Boston, MA, USA
| | - Rebecca L Carrier
- Department of Chemical Engineering, Northeastern University, Boston, MA, USA
| | - Michael Young
- The Schepens Eye Research Institute, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
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