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Spessot E, Passuello S, Shah LV, Maniglio D, Motta A. Nanocomposite Methacrylated Silk Fibroin-Based Scaffolds for Bone Tissue Engineering. Biomimetics (Basel) 2024; 9:218. [PMID: 38667229 PMCID: PMC11048339 DOI: 10.3390/biomimetics9040218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 04/28/2024] Open
Abstract
The treatment of bone defects is a clinical challenge. Bone tissue engineering is gaining interest as an alternative to current treatments, with the development of 3D porous structures (scaffolds) helpful in promoting bone regeneration by ensuring temporary functional support. In this work, methacrylated silk fibroin (SilMA) sponges were investigated as scaffolds for bone tissue engineering by exploiting the combination of physical (induced by NaCl salt during particulate leaching) and chemical crosslinking (induced by UV-light exposure) techniques. A biomimetic approach was adopted to better simulate the extracellular matrix of the bone by introducing either natural (mussel shell-derived) or synthetic-origin hydroxyapatite nanoparticles into the SilMA sponges. The obtained materials were characterized in terms of pore size, water absorption capability and mechanical properties to understand both the effect of the inclusion of the two different types of nanoparticles and the effect of the photocrosslinking. Moreover, the SilMA sponges were tested for their bioactivity and suitability for bone tissue engineering purposes by using osteosarcoma cells, studying their metabolism by an AlamarBlue assay and their morphology by scanning electron microscopy. Results indicate that photocrosslinking helps in obtaining more regular structures with bimodal pore size distributions and in enhancing the stability of the constructs in water. Moreover, the addition of naturally derived hydroxyapatite was observed to be more effective at activating osteosarcoma cell metabolism than synthetic hydroxyapatite, showing a statistically significant difference in the AlamarBlue measurement on day 7 after seeding. The methacrylated silk fibroin/hydroxyapatite nanocomposite sponges developed in this work were found to be promising tools for targeting bone regeneration with a sustainable approach.
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Affiliation(s)
- Eugenia Spessot
- Department of Industrial Engineering and BIOtech Research Centre, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (E.S.); (L.V.S.); (A.M.)
- European Institute of Excellence on Tissue Engineering and Regenerative Medicine Unit, Via delle Regole 101, 38123 Trento, Italy
| | - Serena Passuello
- Department of Industrial Engineering and BIOtech Research Centre, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (E.S.); (L.V.S.); (A.M.)
| | - Lekha Vinod Shah
- Department of Industrial Engineering and BIOtech Research Centre, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (E.S.); (L.V.S.); (A.M.)
- European Institute of Excellence on Tissue Engineering and Regenerative Medicine Unit, Via delle Regole 101, 38123 Trento, Italy
| | - Devid Maniglio
- Department of Industrial Engineering and BIOtech Research Centre, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (E.S.); (L.V.S.); (A.M.)
- European Institute of Excellence on Tissue Engineering and Regenerative Medicine Unit, Via delle Regole 101, 38123 Trento, Italy
| | - Antonella Motta
- Department of Industrial Engineering and BIOtech Research Centre, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (E.S.); (L.V.S.); (A.M.)
- European Institute of Excellence on Tissue Engineering and Regenerative Medicine Unit, Via delle Regole 101, 38123 Trento, Italy
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2
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Pudełko I, Moskwik A, Kwiecień K, Kriegseis S, Krok-Borkowicz M, Schickle K, Ochońska D, Dobrzyński P, Brzychczy-Włoch M, Gonzalez-Julian J, Pamuła E. Porous Zirconia Scaffolds Functionalized with Calcium Phosphate Layers and PLGA Nanoparticles Loaded with Hydrophobic Gentamicin. Int J Mol Sci 2023; 24:ijms24098400. [PMID: 37176107 PMCID: PMC10178882 DOI: 10.3390/ijms24098400] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/29/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023] Open
Abstract
Implant-related infections are a worldwide issue that is considered very challenging. Conventional therapies commonly end up failing; thus, new solutions are being investigated to overcome this problem. The in situ delivery of the drug at the implant site appears to be more sufficient compared to systemic antibiotic therapy. In this study, we manufactured porous zirconia scaffolds using the foam replication method. To improve their overall bioactivity, they were coated with a calcium phosphate (CaP) layer containing antibiotic-loaded degradable polymer nanoparticles (NPs) obtained by the double emulsion method to achieve the antibacterial effect additionally. Encapsulation efficiency (EE) and drug loading (DL) were superior and were equal to 99.9 ± 0.1% and 9.1 ± 0.1%, respectively. Scaffolds were analyzed with scanning electron microscopy, and their porosity was evaluated. The porosity of investigated samples was over 90% and resembled the microstructure of spongy bone. Furthermore, we investigated the cytocompatibility with osteoblast-like MG-63 cells and antimicrobial properties with Staphylococcus aureus. Scaffolds coated with a CaP layer were found non-toxic for MG-63 cells. Moreover, the presence of antibiotic-loaded nanoparticles had no significant influence on cell viability, and the obtained scaffolds inhibited bacteria growth. Provided processes of fabrication of highly porous zirconia scaffolds and surface functionalization allow minimizing the risk of implant-related infection.
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Affiliation(s)
- Iwona Pudełko
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Anna Moskwik
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Konrad Kwiecień
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Sven Kriegseis
- Department of Ceramics and Refractory Materials, Institute of Mineral Engineering, RWTH Aachen University, Forckenbeckstraße 33, 52074 Aachen, Germany
| | - Małgorzata Krok-Borkowicz
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Karolina Schickle
- Department of Ceramics and Refractory Materials, Institute of Mineral Engineering, RWTH Aachen University, Forckenbeckstraße 33, 52074 Aachen, Germany
- Department of Restorative Dentistry and Endodontology, Justus-Liebig-University Giessen, Schlangenzahl 14, 35392 Gießen, Germany
| | - Dorota Ochońska
- Department of Molecular Medical Microbiology, Chair of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 18 Czysta Str., 31-121 Kraków, Poland
| | - Piotr Dobrzyński
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowskiej Str., 41-819 Zabrze, Poland
| | - Monika Brzychczy-Włoch
- Department of Molecular Medical Microbiology, Chair of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 18 Czysta Str., 31-121 Kraków, Poland
| | - Jesus Gonzalez-Julian
- Department of Ceramics and Refractory Materials, Institute of Mineral Engineering, RWTH Aachen University, Forckenbeckstraße 33, 52074 Aachen, Germany
| | - Elżbieta Pamuła
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
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3
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Li B, Wang M, Liu Y, Zhou Y, Tang L, You P, Deng Y. Independent effects of structural optimization and resveratrol functionalization on extracellular matrix scaffolds for bone regeneration. Colloids Surf B Biointerfaces 2022; 212:112370. [PMID: 35144132 DOI: 10.1016/j.colsurfb.2022.112370] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/17/2022] [Accepted: 01/23/2022] [Indexed: 11/26/2022]
Abstract
Due to their natural biological activity and low immunogenicity, decellularized extracellular matrix (ECM) materials have aroused interest as potential scaffold materials in tissue engineering. Decellularized small intestinal submucosa (SIS) is one ECM biomaterial that can be easily sourced. In the present study, we tested whether the osteogenesis of SIS scaffolds was enhanced via structural optimization and resveratrol (RSV) functionalization and explored the independent effects of these modifications. We obtained SIS scaffolds with different pore structures by controlling the preparation concentration. The group with superior osteogenic properties was further RSV-functionalized via covalent immobilization. We conducted a series of in vitro and in vivo studies to explore the effects of these two optimization strategies on the osteogenic properties of SIS scaffolds. The results showed that pore structure and RSV functionalization significantly affected the osteogenic properties of SIS scaffolds. With a fabrication concentration of 1%, the SIS scaffolds had superior osteogenic properties. Through covalent coupling, RSV was successfully grafted onto SIS scaffolds, where it was slowly released. The most significant improvements in osteogenic properties were obtained with a coupling concentration of 1%. Furthermore, in in vivo experiments, vascular and new bone tissue formation was enhanced with RSV/SIS scaffolds compared with SIS scaffolds and the blank control group at 4 weeks after implantation. These findings indicate that the RSV/SIS scaffolds obtained via dual optimization strategies show promise as biomaterials in bone tissue engineering.
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Affiliation(s)
- Bowen Li
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, PR China; Department of Stomatology, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Science, Beijing 100730, China
| | - Mei Wang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, PR China
| | - Yuhua Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, PR China.
| | - Yongsheng Zhou
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, PR China.
| | - Lin Tang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, PR China
| | - Pengyue You
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, PR China
| | - Yi Deng
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, PR China
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4
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Wang J, Zhang Y, Sun J, Jiao Z. Controllable fabrication of multi‐modal porous
PLGA
scaffolds with different sizes of
SPIONs
using supercritical
CO
2
foaming. J Appl Polym Sci 2022. [DOI: 10.1002/app.52287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jinjing Wang
- School of Energy and Environment Southeast University Nanjing Jiangsu China
- Jiangsu Key Laboratory for Biomaterials and Devices Nanjing Jiangsu China
- Joint Research Institute of Southeast University and Monash University Southeast University Suzhou Jiangsu China
| | - Yi Zhang
- School of Energy and Environment Southeast University Nanjing Jiangsu China
- Jiangsu Key Laboratory for Biomaterials and Devices Nanjing Jiangsu China
- Joint Research Institute of Southeast University and Monash University Southeast University Suzhou Jiangsu China
| | - Jianfei Sun
- Jiangsu Key Laboratory for Biomaterials and Devices Nanjing Jiangsu China
- Joint Research Institute of Southeast University and Monash University Southeast University Suzhou Jiangsu China
| | - Zhen Jiao
- Jiangsu Key Laboratory for Biomaterials and Devices Nanjing Jiangsu China
- Joint Research Institute of Southeast University and Monash University Southeast University Suzhou Jiangsu China
- School of Chemistry and Chemical Engineering Southeast University Nanjing Jiangsu China
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5
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Schnabelrauch M, Schiller J, Möller S, Scharnweber D, Hintze V. Chemically modified glycosaminoglycan derivatives as building blocks for biomaterial coatings and hydrogels. Biol Chem 2021; 402:1385-1395. [PMID: 34008374 DOI: 10.1515/hsz-2021-0171] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 05/07/2021] [Indexed: 12/21/2022]
Abstract
Tissue regeneration is regulated by the cellular microenvironment, e.g. the extracellular matrix. Here, sulfated glycosaminoglycans (GAG), are of vital importance interacting with mediator proteins and influencing their biological activity. Hence, they are promising candidates for controlling tissue regeneration. This review addresses recent achievements regarding chemically modified GAG as well as collagen/GAG-based coatings and hydrogels including (i) chemical functionalization strategies for native GAG, (ii) GAG-based biomaterial strategies for controlling cellular responses, (iii) (bio)chemical methods for characterization and iv) protein interaction profiles and attained tissue regeneration in vitro and in vivo. The potential of GAG for bioinspired, functional biomaterials is highlighted.
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Affiliation(s)
| | - Jürgen Schiller
- Institute for Medical Physics and Biophysics, Medical Faculty, Universität Leipzig, D-04107 Leipzig, Germany
| | - Stephanie Möller
- Biomaterials Department, INNOVENT e.V., Prüssingstrasse 27B, D-07745Jena, Germany
| | - Dieter Scharnweber
- Institute of Materials Science, Max Bergmann Center of Biomaterials, TU Dresden, Budapester Str. 27, D-01069Dresden, Germany
| | - Vera Hintze
- Institute of Materials Science, Max Bergmann Center of Biomaterials, TU Dresden, Budapester Str. 27, D-01069Dresden, Germany
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6
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Kirillova A, Yeazel TR, Asheghali D, Petersen SR, Dort S, Gall K, Becker ML. Fabrication of Biomedical Scaffolds Using Biodegradable Polymers. Chem Rev 2021; 121:11238-11304. [PMID: 33856196 DOI: 10.1021/acs.chemrev.0c01200] [Citation(s) in RCA: 94] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Degradable polymers are used widely in tissue engineering and regenerative medicine. Maturing capabilities in additive manufacturing coupled with advances in orthogonal chemical functionalization methodologies have enabled a rapid evolution of defect-specific form factors and strategies for designing and creating bioactive scaffolds. However, these defect-specific scaffolds, especially when utilizing degradable polymers as the base material, present processing challenges that are distinct and unique from other classes of materials. The goal of this review is to provide a guide for the fabrication of biodegradable polymer-based scaffolds that includes the complete pathway starting from selecting materials, choosing the correct fabrication method, and considering the requirements for tissue specific applications of the scaffold.
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Affiliation(s)
- Alina Kirillova
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Taylor R Yeazel
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Darya Asheghali
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Shannon R Petersen
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Sophia Dort
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Ken Gall
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Matthew L Becker
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States.,Department of Chemistry, Duke University, Durham, North Carolina 27708, United States.,Departments of Biomedical Engineering and Orthopaedic Surgery, Duke University, Durham, North Carolina 27708, United States
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7
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Zhao D, Zhu T, Li J, Cui L, Zhang Z, Zhuang X, Ding J. Poly(lactic- co-glycolic acid)-based composite bone-substitute materials. Bioact Mater 2021; 6:346-360. [PMID: 32954053 PMCID: PMC7475521 DOI: 10.1016/j.bioactmat.2020.08.016] [Citation(s) in RCA: 184] [Impact Index Per Article: 61.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/18/2020] [Accepted: 08/18/2020] [Indexed: 01/01/2023] Open
Abstract
Research and development of the ideal artificial bone-substitute materials to replace autologous and allogeneic bones for repairing bone defects is still a challenge in clinical orthopedics. Recently, poly(lactic-co-glycolic acid) (PLGA)-based artificial bone-substitute materials are attracting increasing attention as the benefit of their suitable biocompatibility, degradability, mechanical properties, and capabilities to promote bone regeneration. In this article, we comprehensively review the artificial bone-substitute materials made from PLGA or the composites of PLGA and other organic and inorganic substances, elaborate on their applications for bone regeneration with or without bioactive factors, and prospect the challenges and opportunities in clinical bone regeneration.
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Affiliation(s)
- Duoyi Zhao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
- Department of Orthopedics, The Fourth Affiliated Hospital of China Medical University, 4 Chongshandong Road, Shenyang, 110032, PR China
| | - Tongtong Zhu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun, 130033, PR China
| | - Jie Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
| | - Liguo Cui
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun, 130022, PR China
| | - Zhiyu Zhang
- Department of Orthopedics, The Fourth Affiliated Hospital of China Medical University, 4 Chongshandong Road, Shenyang, 110032, PR China
| | - Xiuli Zhuang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun, 130022, PR China
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun, 130022, PR China
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8
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Alvarado-Hidalgo F, Ramírez-Sánchez K, Starbird-Perez R. Smart Porous Multi-Stimulus Polysaccharide-Based Biomaterials for Tissue Engineering. Molecules 2020; 25:E5286. [PMID: 33202707 PMCID: PMC7697121 DOI: 10.3390/molecules25225286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/03/2020] [Accepted: 11/05/2020] [Indexed: 01/01/2023] Open
Abstract
Recently, tissue engineering and regenerative medicine studies have evaluated smart biomaterials as implantable scaffolds and their interaction with cells for biomedical applications. Porous materials have been used in tissue engineering as synthetic extracellular matrices, promoting the attachment and migration of host cells to induce the in vitro regeneration of different tissues. Biomimetic 3D scaffold systems allow control over biophysical and biochemical cues, modulating the extracellular environment through mechanical, electrical, and biochemical stimulation of cells, driving their molecular reprogramming. In this review, first we outline the main advantages of using polysaccharides as raw materials for porous scaffolds, as well as the most common processing pathways to obtain the adequate textural properties, allowing the integration and attachment of cells. The second approach focuses on the tunable characteristics of the synthetic matrix, emphasizing the effect of their mechanical properties and the modification with conducting polymers in the cell response. The use and influence of polysaccharide-based porous materials as drug delivery systems for biochemical stimulation of cells is also described. Overall, engineered biomaterials are proposed as an effective strategy to improve in vitro tissue regeneration and future research directions of modified polysaccharide-based materials in the biomedical field are suggested.
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Affiliation(s)
- Fernando Alvarado-Hidalgo
- Centro de Investigación en Servicios Químicos y Microbiológicos, CEQIATEC, Escuela de Química, Instituto Tecnológico de Costa Rica, Cartago 159-7050, Costa Rica
- Master Program in Medical Devices Engineering, Instituto Tecnológico de Costa Rica, Cartago 159-7050, Costa Rica
| | - Karla Ramírez-Sánchez
- Centro de Investigación en Servicios Químicos y Microbiológicos, CEQIATEC, Escuela de Química, Instituto Tecnológico de Costa Rica, Cartago 159-7050, Costa Rica
- Centro de Investigación en Enfermedades Tropicales, CIET, Facultad de Microbiología, Universidad de Costa Rica, San José 11501-2060, Costa Rica
| | - Ricardo Starbird-Perez
- Centro de Investigación en Servicios Químicos y Microbiológicos, CEQIATEC, Escuela de Química, Instituto Tecnológico de Costa Rica, Cartago 159-7050, Costa Rica
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9
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Krok-Borkowicz M, Reczyńska K, Rumian Ł, Menaszek E, Orzelski M, Malisz P, Silmanowicz P, Dobrzyński P, Pamuła E. Surface-Modified Poly(l-lactide- co-glycolide) Scaffolds for the Treatment of Osteochondral Critical Size Defects-In Vivo Studies on Rabbits. Int J Mol Sci 2020; 21:E7541. [PMID: 33066080 PMCID: PMC7590021 DOI: 10.3390/ijms21207541] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/25/2020] [Accepted: 10/11/2020] [Indexed: 12/27/2022] Open
Abstract
Poly(l-lactide-co-glycolide) (PLGA) porous scaffolds were modified with collagen type I (PLGA/coll) or hydroxyapatite (PLGA/HAp) and implanted in rabbits osteochondral defects to check their biocompatibility and bone tissue regeneration potential. The scaffolds were fabricated using solvent casting/particulate leaching method. Their total porosity was 85% and the pore size was in the range of 250-320 µm. The physico-chemical properties of the scaffolds were evaluated using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffractometry (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), sessile drop, and compression tests. Three types of the scaffolds (unmodified PLGA, PLGA/coll, and PLGA/HAp) were implanted into the defects created in New Zealand rabbit femoral trochlears; empty defect acted as control. Samples were extracted after 1, 4, 12, and 26 weeks from the implantation, evaluated using micro-computed tomography (µCT), and stained by Masson-Goldner and hematoxylin-eosin. The results showed that the proposed method is suitable for fabrication of highly porous PLGA scaffolds. Effective deposition of both coll and HAp was confirmed on all surfaces of the pores through the entire scaffold volume. In the in vivo model, PLGA and PLGA/HAp scaffolds enhanced tissue ingrowth as shown by histological and morphometric analyses. Bone formation was the highest for PLGA/HAp scaffolds as evidenced by µCT. Neo-tissue formation in the defect site was well correlated with degradation kinetics of the scaffold material. Interestingly, around PLGA/coll extensive inflammation and inhibited tissue healing were detected, presumably due to immunological response of the host towards collagen of bovine origin. To summarize, PLGA scaffolds modified with HAp are the most promising materials for bone tissue regeneration.
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Affiliation(s)
- Małgorzata Krok-Borkowicz
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH—University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland; (M.K.-B.); (K.R.); (Ł.R.)
| | - Katarzyna Reczyńska
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH—University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland; (M.K.-B.); (K.R.); (Ł.R.)
| | - Łucja Rumian
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH—University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland; (M.K.-B.); (K.R.); (Ł.R.)
| | - Elżbieta Menaszek
- Department of Cytobiology, Faculty of Pharmacy, Collegium Medicum, Jagiellonian University, ul. Medyczna 9, 30-688 Kraków, Poland;
| | - Maciej Orzelski
- Department and Clinic of Animal Surgery, Faculty of Veterinary Medicine, University of Life Sciences, ul. Głęboka 30, 20-612 Lublin, Poland; (M.O.); (P.S.)
| | - Piotr Malisz
- Department of Electroradiology, Collegium Medicum, Faculty of Health Science, Jagiellonian University, ul. Michałowskiego 12, 31-126 Kraków, Poland;
| | - Piotr Silmanowicz
- Department and Clinic of Animal Surgery, Faculty of Veterinary Medicine, University of Life Sciences, ul. Głęboka 30, 20-612 Lublin, Poland; (M.O.); (P.S.)
| | - Piotr Dobrzyński
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, ul. Curie-Sklodowskiej 34, 41-800 Zabrze, Poland;
- Faculty of Science & Technology, Jan Długosz University in Częstochowa, ul. Armii Krajowej 13/15, 42-200 Częstochowa, Poland
| | - Elżbieta Pamuła
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH—University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland; (M.K.-B.); (K.R.); (Ł.R.)
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