1
|
Piaia L, Silva SS, Gomes JM, R Franco A, Fernandes EM, Lobo FCM, Rodrigues LC, Leonor IB, Fredel MC, Salmoria GV, Hotza D, Reis RL. Chitosan/ β-TCP composites scaffolds coated with silk fibroin: a bone tissue engineering approach. Biomed Mater 2021; 17. [PMID: 34785622 DOI: 10.1088/1748-605x/ac355a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 11/01/2021] [Indexed: 11/12/2022]
Abstract
Bone regeneration and natural repair are long-standing processes that can lead to uneven new tissue growth. By introducing scaffolds that can be autografts and/or allografts, tissue engineering provides new approaches to manage the major burdens involved in this process. Polymeric scaffolds allow the incorporation of bioactive agents that improve their biological and mechanical performance, making them suitable materials for bone regeneration solutions. The present work aimed to create chitosan/beta-tricalcium phosphate-based scaffolds coated with silk fibroin and evaluate their potential for bone tissue engineering. Results showed that the obtained scaffolds have porosities up to 86%, interconnectivity up to 96%, pore sizes in the range of 60-170 μm, and a stiffness ranging from 1 to 2 MPa. Furthermore, when cultured with MC3T3 cells, the scaffolds were able to form apatite crystals after 21 d; and they were able to support cell growth and proliferation up to 14 d of culture. Besides, cellular proliferation was higher on the scaffolds coated with silk. These outcomes further demonstrate that the developed structures are suitable candidates to enhance bone tissue engineering.
Collapse
Affiliation(s)
- Lya Piaia
- Laboratory of Innovation on Additive Manufacturing and Molding (NIMMA), Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil.,Interdisciplinary Laboratory for the Development of Nanostructures (LINDEN), Department of Chemical Engineering (EQA), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil
| | - Simone S Silva
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Joana M Gomes
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Albina R Franco
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Emanuel M Fernandes
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Flávia C M Lobo
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Luísa C Rodrigues
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Isabel B Leonor
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Márcio C Fredel
- Interdisciplinary Laboratory for the Development of Nanostructures (LINDEN), Department of Chemical Engineering (EQA), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil.,Laboratory of Ceramic Materials and Composites (CERMAT), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil
| | - Gean V Salmoria
- Laboratory of Innovation on Additive Manufacturing and Molding (NIMMA), Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil.,Biomechanics Engineering Laboratory, University Hospital (HU), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil
| | - Dachamir Hotza
- Interdisciplinary Laboratory for the Development of Nanostructures (LINDEN), Department of Chemical Engineering (EQA), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil.,Laboratory of Ceramic Materials and Composites (CERMAT), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil
| | - Rui L Reis
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| |
Collapse
|
2
|
Effects of additional collagen in biphasic calcium phosphates: a study in a rabbit calvaria. Clin Oral Investig 2020; 24:3093-3103. [PMID: 31953682 DOI: 10.1007/s00784-019-03181-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 12/19/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVES Biphasic calcium phosphates (BCP) are synthetic biomaterials developed as an alternative to the autogenous bone grafts and xenografts. The aim of the present study was to assess the influence of the addition of collagen onto the BCP resorption rate and bone formation. MATERIAL AND METHODS Eighteen male NWZ rabbits approximately 12 weeks of age were used. Critical size defects were randomly treated with bilayered BCP materials comprising 12% HA and 88% α-TCP with and without collagen or sham-operated, respectively. All defects were covered with a resorbable collagen membrane. Animals were euthanized after 3 and 12 weeks of healing and investigated by micro-CT, histologic, and histomorphometric analysis. RESULTS Woven bone formation was observed from the original bone at 3-week healing in all samples. After 3 months, mainly lamellar new bone in the peripheral area was observed. In the central region, both woven and lamellar bone were seen. Samples containing collagen showed less residual biomaterial than without collagen at both healing periods. Both types of granules were in close contact with new bone, yielding a complete defect closure at 3 months of healing. However, new bone volume and area was similar for both biomaterials. CONCLUSIONS Within its limitations, the study results qualify collagen as a biocompatible carrier for BCPs. The presence of collagen indicated neither significant impact on the resorption of the BCPs nor on bone formation. CLINICAL RELEVANCE The addition of collagen to BCPs might not be beneficial for the augmentation of extended bone deficiencies.
Collapse
|
3
|
Sieger D, Korzinskas T, Jung O, Stojanovic S, Wenisch S, Smeets R, Gosau M, Schnettler R, Najman S, Barbeck M. The Addition of High Doses of Hyaluronic Acid to a Biphasic Bone Substitute Decreases the Proinflammatory Tissue Response. Int J Mol Sci 2019; 20:E1969. [PMID: 31013636 PMCID: PMC6515558 DOI: 10.3390/ijms20081969] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/20/2019] [Accepted: 04/21/2019] [Indexed: 02/06/2023] Open
Abstract
Biphasic bone substitutes (BBS) are currently well-established biomaterials. Through their constant development, even natural components like hyaluronic acid (HY) have been added to improve both their handling and also their regenerative properties. However, little knowledge exists regarding the consequences of the addition of HY to their biocompatibility and the inflammatory tissue reactions. Thus, the present study was conducted, aiming to analyze the influence of two different amounts of high molecular weight HY (HMWHY), combined with a BBS, on in vitro biocompatibility and in vivo tissue reaction. Established in vitro procedures, using L929 cells, were used for cytocompatibility analyses under the test conditions of DIN EN:ISO 10993-5. For the in vivo part of the study, calvarial defects were created in 20 Wistar rats and subsequently filled with BBS, and BBS combined with two different HMWHY amounts, i.e., BBS + HY(L) and BBS + HY(H). As controls, empty defects were used. Established histological, immunohistochemical, and histomorphometrical methods were applied to analyze the tissue reactions to the three different materials, including the induction of pro- and anti-inflammatory macrophages and multinucleated giant cells (BMGCs). The in vitro results showed that none of the materials or compositions caused biological damage to the L929 cells and can be considered to be non-toxic. The in vivo results showed that only the addition of high doses of HY to a biphasic bone substitute significantly decreases the occurrence of pro-inflammatory macrophages (* p < 0.05), comparable to the numbers found in the control group, while no significant differences within the three study groups for M2-macrophages nor BMGCs were detected. In conclusion, the addition of different amounts of HMWHY does not seem to affect the inflammation response to BBS, while improving the material handling properties.
Collapse
Affiliation(s)
- Dominik Sieger
- Department of Oral and Maxillofacial Surgery, Division for Regenerative Orofacial Medicine, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Tadas Korzinskas
- Department of Oral and Maxillofacial Surgery, Division for Regenerative Orofacial Medicine, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Ole Jung
- Department of Oral and Maxillofacial Surgery, Division for Regenerative Orofacial Medicine, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Sanja Stojanovic
- Department for Cell and Tissue Engineering, Institute of Biology and Human Genetics, University of Niš, Faculty of Medicine, Niš 18106, Serbia.
| | - Sabine Wenisch
- Clinic of Small Animals, c/o Institute of Veterinary Anatomy, Histology and Embryology, Justus Liebig University of Giessen, 35392 Giessen, Germany.
| | - Ralf Smeets
- Department of Oral and Maxillofacial Surgery, Division for Regenerative Orofacial Medicine, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany.
- Department of Oral Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Martin Gosau
- Department of Oral and Maxillofacial Surgery, Division for Regenerative Orofacial Medicine, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany.
- Department of Oral Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Reinhard Schnettler
- Department of Oral and Maxillofacial Surgery, Division for Regenerative Orofacial Medicine, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany.
- Department of Oral Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Stevo Najman
- Department for Cell and Tissue Engineering, Institute of Biology and Human Genetics, University of Niš, Faculty of Medicine, Niš 18106, Serbia.
| | - Mike Barbeck
- Department of Oral and Maxillofacial Surgery, Division for Regenerative Orofacial Medicine, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany.
- BerlinAnalytix GmbH, 12109 Berlin, Germany.
| |
Collapse
|
4
|
Bothe F, Lotz B, Seebach E, Fischer J, Hesse E, Diederichs S, Richter W. Stimulation of calvarial bone healing with human bone marrow stromal cells versus inhibition with adipose-tissue stromal cells on nanostructured β-TCP-collagen. Acta Biomater 2018; 76:135-145. [PMID: 29933108 DOI: 10.1016/j.actbio.2018.06.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 06/11/2018] [Accepted: 06/15/2018] [Indexed: 12/28/2022]
Abstract
Bioactive functional scaffolds are essential for support of cell-based strategies to improve bone regeneration. Adipose-tissue-derived-stromal cells (ASC) are more accessible multipotent cells with faster proliferation than bone-marrow-derived-stromal-cells (BMSC) having potential to replace BMSC for therapeutic stimulation of bone-defect healing. Their osteogenic potential is, however, lower compared to BMSC, a deficit that may be overcome in growth factor-rich orthotopic bone defects with enhanced bone-conductive scaffolds. Objective of this study was to compare the therapeutic potency of human ASC and BMSC for bone regeneration on a novel nanoparticulate β-TCP/collagen-carrier (β-TNC). Cytotoxicity of β-TCP nanoparticles and multilineage differentiation of cells were characterized in vitro. Cell-seeded β-TNC versus cell-free controls were implanted into 4 mm calvarial bone-defects in immunodeficient mice and bone healing was quantified by µCT at 4 and 8 weeks. Tissue-quality and cell-origin were assessed by histology. β-TNC was non-toxic, radiolucent and biocompatible, lent excellent support for human cell persistence and allowed formation of human bone tissue by BMSC but not ASC. Opposite to BMSC, ASC-grafting significantly inhibited calvarial bone healing compared to controls. Bone formation progressed significantly from 4 to 8 weeks only in BMSC and controls yielding 5.6-fold more mineralized tissue in BMSC versus ASC-treated defects. Conclusively, β-TNC was simple to generate, biocompatible, osteoconductive, and stimulated osteogenicity of BMSC to enhance calvarial defect healing while ASC had negative effects. Thus, an orthotopic environment and β-TNC could not compensate for cell-autonomous deficits of ASC which should systematically be considered when choosing the right cell source for tissue engineering-based stimulation of bone regeneration. STATEMENT OF SIGNIFICANCE Bone-marrow-derived-stromal cells (BMSC) implanted on bone replacement materials can support bone defect healing and adipose-tissue-derived-stromal cells (ASC) being more accessible and better proliferating are considered as alternate source. This first standardized comparison of the bone regeneration potency of human ASC and BMSC was performed on a novel nanoparticular β-TCP-enriched collagen-carrier (β-TNC) designed to overcome the known inferior osteogenicity of ASC. β-TNC was non-toxic, biocompatible and osteoconductive supporting human bone formation and defect-closure by BMSC but not ASC. Long-term cell-persistence and the distinct secretome of ASC appear as main reasons why ASC inhibited bone healing opposite to BMSC. Overall, ASC-grafting is at considerable risk of producing negative effects on bone-healing while no such risks are known for BMSC.
Collapse
|
5
|
Ning B, Zhao Y, Buza JA, Li W, Wang W, Jia T. Surgically‑induced mouse models in the study of bone regeneration: Current models and future directions (Review). Mol Med Rep 2017; 15:1017-1023. [PMID: 28138711 PMCID: PMC5367352 DOI: 10.3892/mmr.2017.6155] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Accepted: 12/13/2016] [Indexed: 01/17/2023] Open
Abstract
Bone regeneration has been extensively studied over the past several decades. The surgically‑induced mouse model is the key animal model for studying bone regeneration, of the various research strategies used. These mouse models mimic the trauma and recovery processes in vivo and serve as carriers for tissue engineering and gene modification to test various therapies or associated genes in bone regeneration. The present review introduces a classification of surgically induced mouse models in bone regeneration, evaluates the application and value of these models and discusses the potential development of further innovations in this field in the future.
Collapse
Affiliation(s)
- Bin Ning
- Department of Orthopedic Surgery, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, P.R. China
| | - Yunpeng Zhao
- Department of Orthopedic Surgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - John A Buza
- Department of Orthopedic Surgery, New York University Medical Center, New York, NY 10003, USA
| | - Wei Li
- Department of Orthopedic Surgery, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, P.R. China
| | - Wenzhao Wang
- Department of Orthopedic Surgery, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, P.R. China
| | - Tanghong Jia
- Department of Orthopedic Surgery, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, P.R. China
| |
Collapse
|
6
|
Liao J, Li Y, Zou Q, Duan X, Yang Z, Xie Y, Liu H. Preparation, characterization and properties of nano-hydroxyapatite/polypropylene carbonate biocomposite. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 63:285-91. [PMID: 27040221 DOI: 10.1016/j.msec.2016.02.054] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 01/21/2016] [Accepted: 02/19/2016] [Indexed: 10/22/2022]
Abstract
The combination of nano-hydroxyapatite (n-HA) and polypropylene carbonate (PPC) was used to make a composite materials by a coprecipitation method. The physical and chemical properties of the composite were tested. Scanning electron microscope (SEM) observation indicated that the biomimetic n-HA crystals were uniformly distributed in the polymer matrix. As the n-HA content increased in the composite, the fracture mechanism of the composites changes from gliding fracture to gliding and brittle fracture. Furthermore, the chemical interaction between inorganic n-HA and polypropylene carbonate was also investigated and discussed in detail. The hydrogen bonds might be formed between -OH/CO3(2-) of n-HA crystal and the ester group (-COO-) of PPC. The tensile strength of n-HA/PPC (40/60) was similar to that of the cancellous bone, and reached ca 58 MPa. The osteoblasts were cultured for up to 7 days, and then the adhesion and proliferation of osteoblasts were measured by Methyl thiazolyl tetrazolium (MTT) colorimetry assay and SEM. The cells proliferated, grew normally in fusiform shape and well attached. The in vitro test confirmed that the n-HA/PPC composites were biocompatible and showed undetectable negative effect on osteoblasts. In vivo implantation of the composite in New Zealand white rabbits was performed. It can stimulate the growth of a new bone, and at the same time the material begins to degrade. These results suggested that the composite may be suitable for the reparation or replacement of bone defects and possessed the potential for clinical applications.
Collapse
Affiliation(s)
- Jianguo Liao
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China.
| | - Yanqun Li
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
| | - Qin Zou
- Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Xingze Duan
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
| | - Zhengpeng Yang
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
| | - Yufen Xie
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
| | - Haohuai Liu
- School of Chemistry and Chemical Engineering, Analytical and Testing Center, Guangzhou University, Guangzhou 510006, China
| |
Collapse
|
7
|
Lei P, Sun R, Wang L, Zhou J, Wan L, Zhou T, Hu Y. A New Method for Xenogeneic Bone Graft Deproteinization: Comparative Study of Radius Defects in a Rabbit Model. PLoS One 2015; 10:e0146005. [PMID: 26719896 PMCID: PMC4699924 DOI: 10.1371/journal.pone.0146005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Accepted: 12/12/2015] [Indexed: 11/30/2022] Open
Abstract
Background and Objectives Deproteinization is an indispensable process for the elimination of antigenicity in xenograft bones. However, the hydrogen peroxide (H2O2) deproteinized xenograft, which is commonly used to repair bone defect, exhibits limited osteoinduction activity. The present study was designed to develop a new method for deproteinization and compare the osteogenic capacities of new pepsin deproteinized xenograft bones with those of conventional H2O2 deproteinized ones. Methods Bones were deproteinized in H2O2 or pepsin for 8 hours. The morphologies were compared by HE staining. The content of protein and collagen I were measured by the Kjeldahl method and HPLC-MS, respectively. The physical properties were evaluated by SEM and mechanical tests. For in vivo study, X-ray, micro-CT and HE staining were employed to monitor the healing processes of radius defects in rabbit models transplanted with different graft materials. Results Compared with H2O2 deproteinized bones, no distinct morphological and physical changes were observed. However, pepsin deproteinized bones showed a lower protein content, and a higher collagen content were preserved. In vivo studies showed that pepsin deproteinized bones exhibited better osteogenic performance than H2O2 deproteinized bones, moreover, the quantity and quality of the newly formed bones were improved as indicated by micro-CT analysis. From the results of histological examination, the newly formed bones in the pepsin group were mature bones. Conclusions Pepsin deproteinized xenograft bones show advantages over conventional H2O2 deproteinized bones with respect to osteogenic capacity; this new method may hold potential clinical value in the development of new biomaterials for bone grafting.
Collapse
Affiliation(s)
- Pengfei Lei
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China
| | - Rongxin Sun
- Department of Orthopedics, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Long Wang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China
| | - Jialin Zhou
- Department of Orthopedics, Thoracic hospital of Hunan province, Changsha, China
| | - Lifei Wan
- Department of Orthopedics, Ningxiang People's Hospital, Ningxiang, China
| | - Tianjian Zhou
- Department of Orthopedics, The First People's Hospital of Shenzhen, Shenzhen, China
| | - Yihe Hu
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China
| |
Collapse
|
8
|
Huang C, Qin L, Yan W, Weng X, Huang X. Clinical evaluation following the use of mineralized collagen graft for bone defects in revision total hip arthroplasty. Regen Biomater 2015; 2:245-9. [PMID: 26816647 PMCID: PMC4676328 DOI: 10.1093/rb/rbv022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 10/14/2015] [Accepted: 10/15/2015] [Indexed: 11/23/2022] Open
Abstract
Revision total hip arthroplasty (THA) with massive bone loss has been a real challenge for orthopaedic surgeons. Here we describe an approach using mineralized collagen (MC) graft to reconstruct acetabulum and femur with massive bone defects. We identified 89 patients suffering acetabular or femoral bone defects after primary THA, who required revision THA for this study. During the surgery, MC was applied to reconstruct both the acetabular and femoral defects. Harris hip score was used to evaluate hip function while radiographs were taken to estimate bone formation in the defect regions. The average follow-up period was 33.6 ± 2.4 months. None of the components needed re-revised. Mean Harris hip scores were 42.5 ± 3.5 before operation, 75.2 ± 4.0 at 10th month and 95.0 ± 3.6 at the final follow-up. There were no instances of deep infection, severe venous thrombosis or nerve palsy. The present study demonstrated that MC graft can serve as a promising option for revision THA with massive bone deficiency. Meanwhile, extended follow-up is needed to further prove its long-term performance.
Collapse
Affiliation(s)
- Cheng Huang
- Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China and
| | - Liwu Qin
- Department of Orthopaedics, Wendeng Orthopaedic Hospital of Shandong Province Affiliated to Shandong University of Traditional Chinese Medicine, Weihai 264400, China
| | - Wei Yan
- Department of Orthopaedics, Wendeng Orthopaedic Hospital of Shandong Province Affiliated to Shandong University of Traditional Chinese Medicine, Weihai 264400, China
| | - Xisheng Weng
- Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China and
| | - Xiangjie Huang
- Department of Orthopaedics, Wendeng Orthopaedic Hospital of Shandong Province Affiliated to Shandong University of Traditional Chinese Medicine, Weihai 264400, China
| |
Collapse
|
9
|
Collagen/Beta-Tricalcium Phosphate Based Synthetic Bone Grafts via Dehydrothermal Processing. BIOMED RESEARCH INTERNATIONAL 2015; 2015:576532. [PMID: 26504812 PMCID: PMC4609365 DOI: 10.1155/2015/576532] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 08/10/2015] [Accepted: 08/13/2015] [Indexed: 12/15/2022]
Abstract
Millions of patients worldwide remain inadequately treated for bone defects related to factors such as disease or trauma. The drawbacks of metallic implant and autograft/allograft use have steered therapeutic approaches towards tissue engineering solutions involving tissue regeneration scaffolds. This study proposes a composite scaffold with properties tailored to address the macro- and microenvironmental conditions deemed necessary for successful regeneration of bone in defect areas. The biodegradable scaffold composed of porous beta-tricalcium phosphate particles and collagen type I fibers is prepared from a mixture of collagen type-I and β-tricalcium phosphate (β-TCP) particles via lyophilization, followed by dehydrothermal (DHT) processing. The effects of both sterilization via gamma radiation and the use of DHT processing to achieve cross-linking were investigated. The impact of the chosen fabrication methods on scaffold microstructure and β-TCP particle-collagen fiber combinations were analyzed using X-ray diffractometry (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and microcomputerized tomography (µ-CT). Electron spinning resonance (ESR) analysis was used to investigate free radicals formation following sterilization. Results revealed that the highly porous (65% porosity at an average of 100 µm pore size), mechanically adequate, and biocompatible scaffolds can be utilized for bone defect repairs.
Collapse
|
10
|
Osteogenesis of human adipose-derived stem cells on poly(dopamine)-coated electrospun poly(lactic acid) fiber mats. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 58:254-63. [PMID: 26478309 DOI: 10.1016/j.msec.2015.08.009] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 07/15/2015] [Accepted: 08/08/2015] [Indexed: 12/25/2022]
Abstract
Electrospinning is a versatile technique to generate large quantities of micro- or nano-fibers from a wide variety of shapes and sizes of polymer. The aim of this study is to develop functionalized electrospun nano-fibers and use a mussel-inspired surface coating to regulate adhesion, proliferation and differentiation of human adipose-derived stem cells (hADSCs). We prepared poly(lactic acid) (PLA) fibers coated with polydopamine (PDA). The morphology, chemical composition, and surface properties of PDA/PLA were characterized by SEM and XPS. PDA/PLA modulated hADSCs' responses in several ways. Firstly, adhesion and proliferation of hADSCs cultured on PDA/PLA were significantly enhanced relative to those on PLA. Increased focal adhesion kinase (FAK) and collagen I levels and enhanced cell attachment and cell cycle progression were observed upon an increase in PDA content. In addition, the ALP activity and osteocalcin of hADSCs cultured on PDA/PLA were significantly higher than seen in those cultured on a pure PLA mat. Moreover, hADSCs cultured on PDA/PLA showed up-regulation of the ang-1 and vWF proteins associated with angiogenesis differentiation. Our results demonstrate that the bio-inspired coating synthetic degradable PLA polymer can be used as a simple technique to render the surfaces of synthetic biodegradable fibers, thus enabling them to direct the specific responses of hADSCs.
Collapse
|
11
|
Poly(dopamine) coating of 3D printed poly(lactic acid) scaffolds for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 56:165-73. [PMID: 26249577 DOI: 10.1016/j.msec.2015.06.028] [Citation(s) in RCA: 199] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 02/17/2015] [Accepted: 06/13/2015] [Indexed: 11/21/2022]
Abstract
3D printing is a versatile technique to generate large quantities of a wide variety of shapes and sizes of polymer. The aim of this study is to develop functionalized 3D printed poly(lactic acid) (PLA) scaffolds and use a mussel-inspired surface coating to regulate cell adhesion, proliferation and differentiation of human adipose-derived stem cells (hADSCs). We prepared PLA 3D scaffolds coated with polydopamine (PDA). The chemical composition and surface properties of PDA/PLA were characterized by XPS. PDA/PLA modulated hADSCs' responses in several ways. Firstly, adhesion and proliferation, and cell cycle of hADSCs cultured on PDA/PLA were significantly enhanced relative to those on PLA. In addition, the collagen I secreted from cells was increased and promoted cell attachment and cell cycle progression were depended on the PDA content. In osteogenesis assay, the ALP activity and osteocalcin of hADSCs cultured on PDA/PLA were significantly higher than seen in those cultured on pure PLA scaffolds. Moreover, hADSCs cultured on PDA/PLA showed up-regulation of the ang-1 and vWF proteins associated with angiogenic differentiation. Our results demonstrate that the bio-inspired coating synthetic PLA polymer can be used as a simple technique to render the surfaces of synthetic scaffolds active, thus enabling them to direct the specific responses of hADSCs.
Collapse
|
12
|
Swartzlander MD, Blakney AK, Amer LD, Hankenson KD, Kyriakides TR, Bryant SJ. Immunomodulation by mesenchymal stem cells combats the foreign body response to cell-laden synthetic hydrogels. Biomaterials 2014; 41:79-88. [PMID: 25522967 DOI: 10.1016/j.biomaterials.2014.11.020] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 10/31/2014] [Accepted: 11/08/2014] [Indexed: 12/29/2022]
Abstract
The implantation of non-biological materials, including scaffolds for tissue engineering, ubiquitously leads to a foreign body response (FBR). We recently reported that this response negatively impacts fibroblasts encapsulated within a synthetic hydrogel and in turn leads to a more severe FBR, suggesting a cross-talk between encapsulated cells and inflammatory cells. Given the promise of mesenchymal stem cells (MSCs) in tissue engineering and recent evidence of their immunomodulatory properties, we hypothesized that MSCs encapsulated within poly(ethylene glycol) (PEG) hydrogels will attenuate the FBR. In vitro, murine MSCs encapsulated within PEG hydrogels attenuated classically activated primary murine macrophages by reducing gene expression and protein secretion of pro-inflammatory cytokines, most notably tumor necrosis factor-α. Using a COX2 inhibitor, prostaglandin E2 (PGE2) was identified as a mediator of MSC immunomodulation of macrophages. In vivo, hydrogels laden with MSCs, osteogenically differentiating MSCs, or no cells were implanted subcutaneously into C57BL/6 mice for 28 days to assess the impact of MSCs on the fibrotic response of the FBR. The presence of encapsulated MSCs reduced fibrous capsule thickness compared to acellular hydrogels, but this effect diminished with osteogenic differentiation. The use of MSCs prior to differentiation in tissue engineering may therefore serve as a dynamic approach, through continuous cross-talk between MSCs and the inflammatory cells, to modulate macrophage activation and attenuate the FBR to implanted synthetic scaffolds thus improving the long-term tissue engineering outcome.
Collapse
Affiliation(s)
- Mark D Swartzlander
- Department of Chemical & Biological Engineering, University of Colorado, Boulder, CO 80309, USA; Biofrontiers Institute, University of Colorado, Boulder, CO 80309, USA.
| | - Anna K Blakney
- Department of Chemical & Biological Engineering, University of Colorado, Boulder, CO 80309, USA.
| | - Luke D Amer
- Department of Chemical & Biological Engineering, University of Colorado, Boulder, CO 80309, USA; Biofrontiers Institute, University of Colorado, Boulder, CO 80309, USA.
| | - Kurt D Hankenson
- Department of Small Animal Clinical Science, School of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA; Department of Physiology, Colleges of Natural Sciences and Osteopathic Medicine, Michigan State University, East Lansing, MI 48824, USA.
| | - Themis R Kyriakides
- Department of Pathology, Yale University School of Medicine, New Haven, CT 06509, USA.
| | - Stephanie J Bryant
- Department of Chemical & Biological Engineering, University of Colorado, Boulder, CO 80309, USA; Biofrontiers Institute, University of Colorado, Boulder, CO 80309, USA; Material Science and Engineering Program, University of Colorado, Boulder, CO 80309, USA.
| |
Collapse
|
13
|
Brennan MÁ, Renaud A, Amiaud J, Rojewski MT, Schrezenmeier H, Heymann D, Trichet V, Layrolle P. Pre-clinical studies of bone regeneration with human bone marrow stromal cells and biphasic calcium phosphate. Stem Cell Res Ther 2014; 5:114. [PMID: 25311054 PMCID: PMC4445278 DOI: 10.1186/scrt504] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 09/30/2014] [Indexed: 02/15/2023] Open
Abstract
INTRODUCTION Repair of large bone defects remains a significant clinical challenge. Bone marrow stromal cells (BMSCs), a subset of which is known as bone marrow-derived mesenchymal stem cells, show therapeutic potential for bone regeneration. However, their isolation, expansion and implantation will need to be conducted under good manufacturing practices (GMP) at separate locations. An investigation which mimics this clinical scenario where large bone defects shall be regenerated is required before clinical trials can be initiated. METHODS Seven batches of 100 million human ex-vivo expanded BMSCs from five donors were transported fresh in syringes from a GMP facility in Germany to France. BMSCs were mixed with biphasic calcium phosphate (BCP) biomaterial prior to subcutaneous implantation in nude mice. The capacity of BMSCs in unison with BCP to regenerate critical sized cranial bone defects was also evaluated. BMSCs expressing luciferase were used to assess the viability and bio-distribution of implanted cells. In situ hybridization, using the human-specific repetitive Alu sequence, was performed for the identification of human cells in explants. RESULTS Eight weeks after implantation of BMSCs, mineralized bone containing mature bone marrow territories was formed in ectopic sites and in calvaria defects. Significant loss of cell viability was observed by bioluminescence imaging and only 1.5 percent of the initial number of transplanted cells remained after 37 days. After eight weeks, while explants were comprised primarily of host cells, there were also human cells attached along the periphery of BCP and embedded in osteocyte lacunae dispersed throughout the newly formed bone matrix. CONCLUSIONS This study demonstrates the safety and efficacy of BMSC/BCP combinations and provides crucial information for the implementation of BMSC therapy for bone regeneration.
Collapse
|
14
|
Su YF, Lin CC, Huang TH, Chou MY, Yang JJ, Shie MY. Osteogenesis and angiogenesis properties of dental pulp cell on novel injectable tricalcium phosphate cement by silica doped. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 42:672-80. [PMID: 25063168 DOI: 10.1016/j.msec.2014.05.038] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 04/03/2014] [Accepted: 05/07/2014] [Indexed: 12/17/2022]
Abstract
β-Tricalcium phosphate (β-TCP) is an osteoconductive material in clinical. In this study, we have doped silica (Si) into β-TCP and enhanced its bioactive and osteostimulative properties. To check its effectiveness, a series of Si-doped with different ratios were prepared to make new bioactive and biodegradable biocomposites for bone repair. Formation of the diametral tensile strength, ions released and weight loss of cements was considered after immersion. In addition, we also examined the behavior of human dental pulp cells (hDPCs) cultured on Si-doped β-TCP cements. The results showed that setting time and injectability of the Si-doped β-TCP cements were decreased as the Si content was increased. At the end of the immersion point, weight losses of 30.1%, 36.9%, 48.1%, and 55.3% were observed for the cement doping 0%, 10%, 20%, and 30% Si into β-TCP cements, respectively. In vitro cell experiments show that the Si-rich cements promote human dental pulp cell (hDPC) proliferation and differentiation. However, when the Si-doped in the cement is more than 20%, the amount of cells and osteogenesis protein of hDPCs was stimulated by Si released from Si-doped β-TCP cements. The degradation of β-TCP and osteogenesis of Si gives a strong reason to believe that these Si-doped β-TCP cements may prove to be promising bone repair materials.
Collapse
Affiliation(s)
- Ying-Fang Su
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan; Department of Stomatology, Chung Shan Medical University Hospital, Taichung, Taiwan; School of Dentistry, Chung Shan Medical University, Taichung, Taiwan
| | - Chi-Chang Lin
- Department of Anatomy, Chung Shan Medical University, Taichung City, Taiwan.
| | - Tsui-Hsien Huang
- Department of Stomatology, Chung Shan Medical University Hospital, Taichung, Taiwan; School of Dentistry, Chung Shan Medical University, Taichung, Taiwan
| | - Ming-Yung Chou
- Department of Stomatology, Chung Shan Medical University Hospital, Taichung, Taiwan; School of Dentistry, Chung Shan Medical University, Taichung, Taiwan
| | - Jaw-Ji Yang
- Department of Chemical and Materials Engineering, Tunghai University, Taichung, Taiwan.
| | - Ming-You Shie
- Department of Anatomy, Chung Shan Medical University, Taichung City, Taiwan.
| |
Collapse
|
15
|
Abstract
PURPOSE OF REVIEW This review outlines the concept of cell-based therapy to restore tissue function, and addresses four key points to consider in cell transplantation: source, surveillance, safety, and site. Whereas each point is essential, additional attention should be given to transplantation sites if cell therapy is going to be successful in the clinic. Various ectopic locations are discussed, and the strengths and weaknesses of each are compared as suitable candidates for cell therapy. RECENT FINDINGS Studies in rodents often demonstrate cell transplantation and engraftment in ectopic sites, with little evidence to suggest why it may also work in humans. For example, transplantation to the subcapsular space of the kidney is often performed in rodents, but has not been a good predictor of clinical success. Recent work has shown that the lymph node may be a good site for transplantation of multiple tissue types, and several reasons are highlighted as to why it should be considered for future studies. SUMMARY The use of cell-based therapy in the clinic has been hampered by the lack of appropriate sites for transplantation. The lymph node is a promising alternative for cell transplantation, and offers hope for clinical application.
Collapse
|
16
|
Li J, Baker BA, Mou X, Ren N, Qiu J, Boughton RI, Liu H. Biopolymer/Calcium phosphate scaffolds for bone tissue engineering. Adv Healthc Mater 2014; 3:469-84. [PMID: 24339420 DOI: 10.1002/adhm.201300562] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Revised: 11/15/2013] [Indexed: 11/08/2022]
Abstract
With nearly 30 years of progress, tissue engineering has shown promise in developing solutions for tissue repair and regeneration. Scaffolds, together with cells and growth factors, are key components of this development. Recently, an increasing number of studies have reported on the design and fabrication of scaffolding materials. In particular, inspired by the nature of bone, polymer/ceramic composite scaffolds have been studied extensively. The purpose of this paper is to review the recent progress of the naturally derived biopolymers and the methods applied to generate biomimetic biopolymer/calcium phosphate composites as well as their biomedical applications in bone tissue engineering.
Collapse
Affiliation(s)
- Jianhua Li
- State Key Lab of Crystal Materials, Shandong University; 27 Shandanan Road Jinan 250100 China
| | - Bryan. A. Baker
- Biosystems and Biomaterials Division, The National Institute of Standards and Technology; MD 20899-8300 USA
| | - Xiaoning Mou
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences; Beijing China
| | - Na Ren
- State Key Lab of Crystal Materials, Shandong University; 27 Shandanan Road Jinan 250100 China
| | - Jichuan Qiu
- State Key Lab of Crystal Materials, Shandong University; 27 Shandanan Road Jinan 250100 China
| | - Robert I. Boughton
- Department of Physics and Astronomy; Bowling Green State University; Bowling Green OH 43403 USA
| | - Hong Liu
- State Key Lab of Crystal Materials, Shandong University; 27 Shandanan Road Jinan 250100 China
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences; Beijing China
| |
Collapse
|