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Aleynik DY, Zhivtscov OP, Yudin VV, Kovylin RS, Komarov RN, Charykova IN, Linkova DD, Rubtsova YP, Guseva MS, Vasyagina TI, Morozov AG, Chesnokov SA, Egorikhina MN. Specifics of Porous Polymer and Xenogeneic Matrices and of Bone Tissue Regeneration Related to Their Implantation into an Experimental Rabbit Defect. Polymers (Basel) 2024; 16:1165. [PMID: 38675083 PMCID: PMC11054212 DOI: 10.3390/polym16081165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
This paper provides a study of two bone substitutes: a hybrid porous polymer and an osteoplastic matrix based on a bovine-derived xenograft. Both materials are porous, but their pore characteristics are different. The osteoplastic matrix has pores of 300-600 µm and the hybrid polymer has smaller pores, generally of 6-20 µm, but with some pores up to 100 µm across. SEM data confirmed the porometry results and demonstrated the different structures of the materials. Therefore, both materials were characterized by an interconnected porous structure and provided conditions for the adhesion and vital activity of human ASCs in vitro. In an experimental model of rabbit shin bone defect, it was shown that, during the 6-month observation period, neither of the materials caused negative reactions in the experimental animals. By the end of the observation period, restoration of the defects in animals in both groups was completed, and elements of both materials were preserved in the defect areas. Data from morphological examinations and CT data demonstrated that the rate of rabbit bone tissue regeneration with the hybrid polymer was comparable to that with the osteoplastic matrix. Therefore, the hybrid polymer has good potential for use in further research and improvement in biomedical applications.
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Affiliation(s)
- Diana Ya. Aleynik
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, Minin and Pozharsky Square 10/1, Nizhny Novgorod 603005, Russia; (D.Y.A.); (O.P.Z.); (V.V.Y.); (R.N.K.); (I.N.C.); (D.D.L.); (Y.P.R.); (M.S.G.); (T.I.V.); (S.A.C.)
| | - Oleg P. Zhivtscov
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, Minin and Pozharsky Square 10/1, Nizhny Novgorod 603005, Russia; (D.Y.A.); (O.P.Z.); (V.V.Y.); (R.N.K.); (I.N.C.); (D.D.L.); (Y.P.R.); (M.S.G.); (T.I.V.); (S.A.C.)
| | - Vladimir V. Yudin
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, Minin and Pozharsky Square 10/1, Nizhny Novgorod 603005, Russia; (D.Y.A.); (O.P.Z.); (V.V.Y.); (R.N.K.); (I.N.C.); (D.D.L.); (Y.P.R.); (M.S.G.); (T.I.V.); (S.A.C.)
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603950, Russia (A.G.M.)
| | - Roman S. Kovylin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603950, Russia (A.G.M.)
| | - Roman N. Komarov
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, Minin and Pozharsky Square 10/1, Nizhny Novgorod 603005, Russia; (D.Y.A.); (O.P.Z.); (V.V.Y.); (R.N.K.); (I.N.C.); (D.D.L.); (Y.P.R.); (M.S.G.); (T.I.V.); (S.A.C.)
| | - Irina N. Charykova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, Minin and Pozharsky Square 10/1, Nizhny Novgorod 603005, Russia; (D.Y.A.); (O.P.Z.); (V.V.Y.); (R.N.K.); (I.N.C.); (D.D.L.); (Y.P.R.); (M.S.G.); (T.I.V.); (S.A.C.)
| | - Daria D. Linkova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, Minin and Pozharsky Square 10/1, Nizhny Novgorod 603005, Russia; (D.Y.A.); (O.P.Z.); (V.V.Y.); (R.N.K.); (I.N.C.); (D.D.L.); (Y.P.R.); (M.S.G.); (T.I.V.); (S.A.C.)
| | - Yulia P. Rubtsova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, Minin and Pozharsky Square 10/1, Nizhny Novgorod 603005, Russia; (D.Y.A.); (O.P.Z.); (V.V.Y.); (R.N.K.); (I.N.C.); (D.D.L.); (Y.P.R.); (M.S.G.); (T.I.V.); (S.A.C.)
| | - Maria S. Guseva
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, Minin and Pozharsky Square 10/1, Nizhny Novgorod 603005, Russia; (D.Y.A.); (O.P.Z.); (V.V.Y.); (R.N.K.); (I.N.C.); (D.D.L.); (Y.P.R.); (M.S.G.); (T.I.V.); (S.A.C.)
| | - Tatyana I. Vasyagina
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, Minin and Pozharsky Square 10/1, Nizhny Novgorod 603005, Russia; (D.Y.A.); (O.P.Z.); (V.V.Y.); (R.N.K.); (I.N.C.); (D.D.L.); (Y.P.R.); (M.S.G.); (T.I.V.); (S.A.C.)
| | - Alexander G. Morozov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603950, Russia (A.G.M.)
| | - Sergey A. Chesnokov
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, Minin and Pozharsky Square 10/1, Nizhny Novgorod 603005, Russia; (D.Y.A.); (O.P.Z.); (V.V.Y.); (R.N.K.); (I.N.C.); (D.D.L.); (Y.P.R.); (M.S.G.); (T.I.V.); (S.A.C.)
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603950, Russia (A.G.M.)
| | - Marfa N. Egorikhina
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, Minin and Pozharsky Square 10/1, Nizhny Novgorod 603005, Russia; (D.Y.A.); (O.P.Z.); (V.V.Y.); (R.N.K.); (I.N.C.); (D.D.L.); (Y.P.R.); (M.S.G.); (T.I.V.); (S.A.C.)
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Schimper CB, Pachschwoell PS, Hettegger H, Neouze MA, Nedelec JM, Wendland M, Rosenau T, Liebner F. Aerogels from Cellulose Phosphates of Low Degree of Substitution: A TBAF·H 2O/DMSO Based Approach. Molecules 2020; 25:molecules25071695. [PMID: 32272769 PMCID: PMC7181236 DOI: 10.3390/molecules25071695] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/30/2020] [Accepted: 04/05/2020] [Indexed: 12/14/2022] Open
Abstract
Biopolymer aerogels of appropriate open-porous morphology, nanotopology, surface chemistry, and mechanical properties can be promising cell scaffolding materials. Here, we report a facile approach towards the preparation of cellulose phosphate aerogels from two types of cellulosic source materials. Since high degrees of phosphorylation would afford water-soluble products inappropriate for cell scaffolding, products of low DSP (ca. 0.2) were prepared by a heterogeneous approach. Aiming at both i) full preservation of chemical integrity of cellulose during dissolution and ii) utilization of specific phase separation mechanisms upon coagulation of cellulose, TBAF·H2O/DMSO was employed as a non-derivatizing solvent. Sequential dissolution of cellulose phosphates, casting, coagulation, solvent exchange, and scCO2 drying afforded lightweight, nano-porous aerogels. Compared to their non-derivatized counterparts, cellulose phosphate aerogels are less sensitive towards shrinking during solvent exchange. This is presumably due to electrostatic repulsion and translates into faster scCO2 drying. The low DSP values have no negative impact on pore size distribution, specific surface (SBET ≤ 310 m2 g−1), porosity (Π 95.5–97 vol.%), or stiffness (Eρ ≤ 211 MPa cm3 g−1). Considering the sterilization capabilities of scCO2, existing templating opportunities to afford dual-porous scaffolds and the good hemocompatibility of phosphorylated cellulose, TBAF·H2O/DMSO can be regarded a promising solvent system for the manufacture of cell scaffolding materials.
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Affiliation(s)
- Christian B. Schimper
- University of Natural Resources and Life Sciences, Vienna (BOKU), Institute for Chemistry of Renewable Resources, Konrad-Lorenz-Straße 24, A-3430 Tulln, Austria; (C.B.S.); (P.S.P.); (H.H.); (T.R.)
| | - Paul S. Pachschwoell
- University of Natural Resources and Life Sciences, Vienna (BOKU), Institute for Chemistry of Renewable Resources, Konrad-Lorenz-Straße 24, A-3430 Tulln, Austria; (C.B.S.); (P.S.P.); (H.H.); (T.R.)
| | - Hubert Hettegger
- University of Natural Resources and Life Sciences, Vienna (BOKU), Institute for Chemistry of Renewable Resources, Konrad-Lorenz-Straße 24, A-3430 Tulln, Austria; (C.B.S.); (P.S.P.); (H.H.); (T.R.)
| | - Marie-Alexandra Neouze
- Vienna University of Technology, Institute of Materials Chemistry, Getreidemarkt 9/165, A-1060 Vienna, Austria;
| | - Jean-Marie Nedelec
- Université Clermont Auvergne, CNRS, SIGMA Clermont, ICCF, F-63000 Clermont-Ferrand, France;
| | - Martin Wendland
- University of Natural Resources and Life Sciences, Vienna (BOKU), Institute for Chemical and Energy Engineering, Muthgasse 107, A-1190 Vienna, Austria;
| | - Thomas Rosenau
- University of Natural Resources and Life Sciences, Vienna (BOKU), Institute for Chemistry of Renewable Resources, Konrad-Lorenz-Straße 24, A-3430 Tulln, Austria; (C.B.S.); (P.S.P.); (H.H.); (T.R.)
- Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Porthansgatan 3, FI-20500 Åbo/Turku, Finland
| | - Falk Liebner
- University of Natural Resources and Life Sciences, Vienna (BOKU), Institute for Chemistry of Renewable Resources, Konrad-Lorenz-Straße 24, A-3430 Tulln, Austria; (C.B.S.); (P.S.P.); (H.H.); (T.R.)
- University Aveiro, Department of Chemistry and CICECO Aveiro Institute of Materials, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
- Correspondence:
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Wu W, Liu X, Zhou Z, Miller AL, Lu L. Three-dimensional porous poly(propylene fumarate)-co-poly(lactic-co-glycolic acid) scaffolds for tissue engineering. J Biomed Mater Res A 2018; 106:2507-2517. [PMID: 29707898 PMCID: PMC9933994 DOI: 10.1002/jbm.a.36446] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 04/13/2018] [Accepted: 04/25/2018] [Indexed: 12/25/2022]
Abstract
Three-dimensional structural scaffolds have played an important role in tissue engineering, especially broad applications in areas such as regenerative medicine. We have developed novel biodegradable porous poly(propylene fumarate)-co-poly(lactic-co-glycolic acid) (PPF-co-PLGA) scaffolds using thermally induced phase separation, and determined the effects of critical parameters such as copolymer concentration (6, 8, and 10 wt %) and the binary solvent ratio of dioxane:water (78/22, 80/20, 82/18 wt/wt %) on the fabrication process. The cloud-point temperatures of PPF-co-PLGA changed in parallel with increasing copolymer concentration, but inversely with increasing dioxane content. The compressive moduli of the scaffolds increased with greater weight composition and dioxane:water ratio. Scaffolds formed using high copolymer concentrations and solvent ratios exhibited preferable biomineralization. All samples showed biodegradation capability in both accelerated solution and phosphate-buffered saline (PBS). Cell toxicity testing indicated that the scaffolds had good biocompatibility with bone and nerve cells, which adhered well to the scaffolds. Variations in the copolymer concentration and solvent ratio exercised a remarkable influence on morphology, mechanical properties, biomineralization, and biodegradation, but not on the cell viability and adhesion of the cross-linked scaffolds. An 8 to 10 wt % solute concentration and 80/20 to 82/18 wt/wt dioxane:water ratio were the optimum parameters for scaffold fabrication. PPF-co-PLGA scaffolds thus possess several promising prospects for tissue engineering applications. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A:2507-2517, 2018.
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Affiliation(s)
- Wei Wu
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, Minnesota, MN, 55905, USA,Department of Orthopedic Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota, MN, 55905, USA,Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xifeng Liu
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, Minnesota, MN, 55905, USA,Department of Orthopedic Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota, MN, 55905, USA
| | - Zifei Zhou
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, Minnesota, MN, 55905, USA,Department of Orthopedic Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota, MN, 55905, USA,Department of Orthopedic Surgery, Shanghai East Hospital, Tongji University, Shanghai, 200120, China
| | - A. Lee Miller
- Department of Orthopedic Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota, MN, 55905, USA
| | - Lichun Lu
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, Minnesota, MN, 55905, USA,Department of Orthopedic Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota, MN, 55905, USA,Corresponding Author: Lichun Lu, Ph.D, Professor of Biomedical Engineering and Orthopedics, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN 55905 USA, Phone: (507)-284-2267, Fax: 507-284-5075,
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Tarafder S, Davies NM, Bandyopadhyay A, Bose S. 3D printed tricalcium phosphate scaffolds: Effect of SrO and MgO doping on in vivo osteogenesis in a rat distal femoral defect model. Biomater Sci 2013; 1:1250-1259. [PMID: 24729867 PMCID: PMC3979641 DOI: 10.1039/c3bm60132c] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The presence of interconnected macro pores is important in tissue engineering scaffolds for guided tissue regeneration. This study reports in vivo biological performance of interconnected macro porous tricalcium phosphate (TCP) scaffolds due to the addition of SrO and MgO as dopants in TCP. We have used direct three dimensional printing (3DP) technology for scaffold fabrication followed by microwave sintering. Mechanical strength was evaluated by scaffolds with 500 µm, 750 µm, and 1000 µm interconnected designed pore sizes. Maximum compressive strength of 12.01 ± 1.56 MPa was achieved for 500 µm interconnected designed pore size Sr-Mg doped scaffold. In vivo biological performance of the microwave sintered pure TCP and Sr-Mg doped TCP scaffolds was assessed by implanting 350 µm designed interconnected macro porous scaffolds in rat distal femoral defect. Sintered pore size of these 3D printed scaffolds were 311 ± 5.9 µm and 245 ± 7.5 µm for pure and SrO-MgO doped TCP scaffolds, respectively. These 3D printed scaffolds possessed multiscale porosity, i.e., 3D interconnected designed macro pores along with intrinsic micro pores. Histomorphology and histomorphometric analysis revealed a significant increase in osteoid like new bone formation, and accelerated mineralization inside SrO and MgO doped 3D printed TCP scaffolds as compared to pure TCP scaffolds. An increase in osteocalcin and type I collagen level was also observed in rat blood serum with SrO and MgO doped TCP scaffolds compared to pure TCP scaffolds. Our results show that these 3D printed SrO and MgO doped TCP scaffolds with multiscale porosity contributed to early healing through accelerated osteogenesis.
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Affiliation(s)
- Solaiman Tarafder
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Pullman, WA 99164, USA
| | - Neal M. Davies
- Department of Pharmaceutical Sciences, College of Pharmacy, Washington State University, Pullman, WA 99164, USA
| | - Amit Bandyopadhyay
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Pullman, WA 99164, USA
| | - Susmita Bose
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Pullman, WA 99164, USA
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Abstract
The aim of the study was to investigate a porous nanohydroxyapatite/polyamide 66 (n-HA/PA66) scaffold material that was implanted into muscle and tibiae of 16 New Zealand white rabbits to evaluate the biocompatibility and osteogenesis and osteoinductivity of the materials in vivo. The samples were harvested at 2, 4, 12 and 26 weeks respectively, and subjected to histological analysis. At 2 weeks, the experiment showed that osteogenesis was detected in porous n-HA/PA66 composite and the density of new bone formation was similar to the surrounding host bone at 12 weeks. The study indicated that three-dimensional pore structures could facilitate cell adhesion, differentiation and proliferation, and help with fibrovascular and nerve colonization. In conclusion, porous n-HA/PA66 scaffold material could be a good candidate as a bone substitute material used in clinics due to its excellent histocompatibility, osteoconductivity and osteoinductivity.
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Affiliation(s)
- Qian Xu
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, PR China
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