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Huang EE, Zhang N, Ganio EA, Shen H, Li X, Ueno M, Utsunomiya T, Maruyama M, Gao Q, Su N, Yao Z, Yang F, Gaudillière B, Goodman SB. Differential dynamics of bone graft transplantation and mesenchymal stem cell therapy during bone defect healing in a murine critical size defect. J Orthop Translat 2022; 36:64-74. [PMID: 35979174 PMCID: PMC9357712 DOI: 10.1016/j.jot.2022.05.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/22/2022] [Accepted: 05/27/2022] [Indexed: 10/24/2022] Open
Abstract
Background A critical size bone defect is a clinical scenario in which bone is lost or excised due to trauma, infection, tumor, or other causes, and cannot completely heal spontaneously. The most common treatment for this condition is autologous bone grafting to the defect site. However, autologous bone graft is often insufficient in quantity or quality for transplantation to these large defects. Recently, tissue engineering methods using mesenchymal stem cells (MSCs) have been proposed as an alternative treatment. However, the underlying biological principles and optimal techniques for tissue regeneration of bone using stem cell therapy have not been completely elucidated. Methods In this study, we compare the early cellular dynamics of healing between bone graft transplantation and MSC therapy in a murine chronic femoral critical-size bone defect. We employ high-dimensional mass cytometry to provide a comprehensive view of the differences in cell composition, stem cell functionality, and immunomodulatory activity between these two treatment methods one week after transplantation. Results We reveal distinct cell compositions among tissues from bone defect sites compared with original bone graft, show active recruitment of MSCs to the bone defect sites, and demonstrate the phenotypic diversity of macrophages and T cells in each group that may affect the clinical outcome. Conclusion Our results provide critical data and future directions on the use of MSCs for treating critical size defects to regenerate bone.Translational Potential of this article: This study showed systematic comparisons of the cellular and immunomodulatory profiles among different interventions to improve the healing of the critical-size bone defect. The results provided potential strategies for designing robust therapeutic interventions for the unmet clinical need of treating critical-size bone defects.
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Affiliation(s)
- Elijah Ejun Huang
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
| | - Ning Zhang
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
| | - Edward A. Ganio
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University, Stanford, CA, USA
| | - Huaishuang Shen
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
| | - Xueping Li
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
| | - Masaya Ueno
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
| | - Takeshi Utsunomiya
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
| | - Masahiro Maruyama
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
| | - Qi Gao
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
| | - Ni Su
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
| | - Zhenyu Yao
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
| | - Fan Yang
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Brice Gaudillière
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University, Stanford, CA, USA
| | - Stuart B. Goodman
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
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Diallo AM, Rota S, Boissière M, Bardonnet R, Pauthe E, Petite H, Benoist HM, Bensidhoum M, Anagnostou F. Osteoformation potential of an allogenic partially demineralized bone matrix in critical-size defects in the rat calvarium. Mater Sci Eng C Mater Biol Appl 2021; 127:112207. [PMID: 34225859 DOI: 10.1016/j.msec.2021.112207] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 05/06/2021] [Accepted: 05/19/2021] [Indexed: 11/27/2022]
Abstract
Allogenic demineralized bone matrix has been developed as a reliable alternative to the autologous bone graft. In the present study, we assessed the osteoformation potential of a partially demineralized bone matrix (PDBM) in a paste form obtained without an added carrier. This formulation included the preparation of cancelous bone from femoral heads after decellularision, delipidation, demineralization in HCl and autoclaving at 121 °C. Structural and biochemical characteristics of PDBM were determined using FTIR (Fourier transform infrared spectroscopy), hydroxyproline, DNA content assays, and optical ellipsometry. The osteoformation potential was evaluated in 8-, 6-, and 4-mm-diameter rat-calvarial bone defects by in vivo micro-CT analysis, performed immediately after surgery on days 0, 15, 30, 45, and 60. Moreover, histological and histomorphometric analyses were done on day 60. PDBM was compared to cancelous bone powder (BP) before its partial demineralization. The expression levels of selected inflammation-, angiogenesis-, and bone-related genes were also investigated by RT-PCR, 3, 7, and 14 days after surgery. Compared to the control group, the PDBM group exhibited a significant increase (p < 0.05) in radiopacity in 8-mm- and 6-mm-diameter defects at all time points tested. On day 60, the amount of newly-formed bone was greater (16 and 1.6 folds; p < 0.001; respectively) compared to that in control defects. No bone formation was observed in defects filled with BP regardeless of the size. In 8-mm-diameter defect, PDBM was effective enough to induce the upregulation of genes pertinent to inflammation (i.e., TNFα, IL-6, and IL-8), angiogenesis (i.e., VEGF, VWF), and osteogenesis (ALP, RUNX2, BGLAP, SP7) by day 3 after surgery. This study showed that the tested PDBM deeply influences the early critical events involved in bone regeneration and exhibits efficient osteoformation capacity, making it an attractive graft option for treating defects in periodontal and maxillofacial areas.
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Affiliation(s)
- Ahmad Moustapha Diallo
- CNRS, UMR 7052 - INSERM U1271, Laboratory of Osteoarticular Biology, Bioengineering and Bioimaging, Universiy of Paris, 10 Avenue de Verdun, 75010 Paris, France; Service of Periodontology, Institute of Odontology and Stomatology (IOS), University Cheikh Anta Diop (UCAD), BP 5005 Dakar-Fann, Sénégal; Faculty of Medecine, Pharmacy and Odonto-Stomatology, University Cheikh Anta Diop (UCAD), BP 5005 Dakar-Fann, Sénégal
| | - Solène Rota
- ERRMECe, Research Team on Extracellular Matrix-Cellular Relationships (EA1391), Biomaterials for Health Research Group, Institute of Materials I-MAT (FD4122), CY Tech, CY University Cergy Paris, International House of Research (MIR), rue Descartes, 95001 Neuville sur Oise cedex, France; Biobank, 3 rue Georges Charpak, 77127 Lieusaint, France
| | - Michel Boissière
- ERRMECe, Research Team on Extracellular Matrix-Cellular Relationships (EA1391), Biomaterials for Health Research Group, Institute of Materials I-MAT (FD4122), CY Tech, CY University Cergy Paris, International House of Research (MIR), rue Descartes, 95001 Neuville sur Oise cedex, France
| | | | - Emmanuel Pauthe
- ERRMECe, Research Team on Extracellular Matrix-Cellular Relationships (EA1391), Biomaterials for Health Research Group, Institute of Materials I-MAT (FD4122), CY Tech, CY University Cergy Paris, International House of Research (MIR), rue Descartes, 95001 Neuville sur Oise cedex, France
| | - Hervé Petite
- CNRS, UMR 7052 - INSERM U1271, Laboratory of Osteoarticular Biology, Bioengineering and Bioimaging, Universiy of Paris, 10 Avenue de Verdun, 75010 Paris, France
| | - Henri M Benoist
- Service of Periodontology, Institute of Odontology and Stomatology (IOS), University Cheikh Anta Diop (UCAD), BP 5005 Dakar-Fann, Sénégal; Faculty of Medecine, Pharmacy and Odonto-Stomatology, University Cheikh Anta Diop (UCAD), BP 5005 Dakar-Fann, Sénégal
| | - Morad Bensidhoum
- CNRS, UMR 7052 - INSERM U1271, Laboratory of Osteoarticular Biology, Bioengineering and Bioimaging, Universiy of Paris, 10 Avenue de Verdun, 75010 Paris, France
| | - Fani Anagnostou
- CNRS, UMR 7052 - INSERM U1271, Laboratory of Osteoarticular Biology, Bioengineering and Bioimaging, Universiy of Paris, 10 Avenue de Verdun, 75010 Paris, France; Service of Odontology, Hôpital Pitié-Salpêtrière APHP, U.F.R. of Odontology University of Paris, 47-83 Boulevard de l'Hôpital, 75013 Paris, France.
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Bouyer M, Garot C, Machillot P, Vollaire J, Fitzpatrick V, Morand S, Boutonnat J, Josserand V, Bettega G, Picart C. 3D-printed scaffold combined to 2D osteoinductive coatings to repair a critical-size mandibular bone defect. Mater Today Bio 2021; 11:100113. [PMID: 34124641 PMCID: PMC8173095 DOI: 10.1016/j.mtbio.2021.100113] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/20/2021] [Accepted: 04/24/2021] [Indexed: 02/03/2023] Open
Abstract
The reconstruction of large bone defects (12 cm3) remains a challenge for clinicians. We developed a new critical-size mandibular bone defect model on a minipig, close to human clinical issues. We analyzed the bone reconstruction obtained by a 3D-printed scaffold made of clinical-grade polylactic acid (PLA), coated with a polyelectrolyte film delivering an osteogenic bioactive molecule (BMP-2). We compared the results (computed tomography scans, microcomputed tomography scans, histology) to the gold standard solution, bone autograft. We demonstrated that the dose of BMP-2 delivered from the scaffold significantly influenced the amount of regenerated bone and the repair kinetics, with a clear BMP-2 dose-dependence. Bone was homogeneously formed inside the scaffold without ectopic bone formation. The bone repair was as good as for the bone autograft. The BMP-2 doses applied in our study were reduced 20- to 75-fold compared to the commercial collagen sponges used in the current clinical applications, without any adverse effects. Three-dimensional printed PLA scaffolds loaded with reduced doses of BMP-2 may be a safe and simple solution for large bone defects faced in the clinic.
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Affiliation(s)
- M. Bouyer
- CEA, CNRS, Université de Grenoble Alpes, ERL5000 BRM, IRIG Institute, 17 Rue des Martyrs, F-38054, Grenoble, France
- CNRS and Grenoble Institute of Engineering, UMR5628, LMGP, 3 Parvis Louis Néel, F-38016, Grenoble, France
- Université Grenoble Alpes, Institut Albert Bonniot, F-38000, Grenoble, France
- Clinique Générale d’Annecy, 4 Chemin de la Tour la Reine, 74000, Annecy, France
| | - C. Garot
- CEA, CNRS, Université de Grenoble Alpes, ERL5000 BRM, IRIG Institute, 17 Rue des Martyrs, F-38054, Grenoble, France
- CNRS and Grenoble Institute of Engineering, UMR5628, LMGP, 3 Parvis Louis Néel, F-38016, Grenoble, France
| | - P. Machillot
- CEA, CNRS, Université de Grenoble Alpes, ERL5000 BRM, IRIG Institute, 17 Rue des Martyrs, F-38054, Grenoble, France
- CNRS and Grenoble Institute of Engineering, UMR5628, LMGP, 3 Parvis Louis Néel, F-38016, Grenoble, France
| | - J. Vollaire
- Université Grenoble Alpes, Institut Albert Bonniot, F-38000, Grenoble, France
- INSERM U1209, Institut Albert Bonniot, F-38000, Grenoble, France
| | - V. Fitzpatrick
- CNRS and Grenoble Institute of Engineering, UMR5628, LMGP, 3 Parvis Louis Néel, F-38016, Grenoble, France
| | - S. Morand
- CEA, CNRS, Université de Grenoble Alpes, ERL5000 BRM, IRIG Institute, 17 Rue des Martyrs, F-38054, Grenoble, France
- CNRS and Grenoble Institute of Engineering, UMR5628, LMGP, 3 Parvis Louis Néel, F-38016, Grenoble, France
- Service de Chirurgie Maxillo-faciale, Centre Hospitalier Annecy Genevois, 1 Avenue de l'hôpital, 74370, Epagny Metz-Tessy, France
| | - J. Boutonnat
- Unité Médico-technique d’Histologie Cytologie Expérimentale, Faculté de Médecine, Université Joseph Fourier, 38700, La Tronche, France
- Département d’Anatomie et Cytologie Pathologique, Institut de Biologie et de Pathologie, Centre Hospitalier Universitaire de Grenoble, France
| | - V. Josserand
- Université Grenoble Alpes, Institut Albert Bonniot, F-38000, Grenoble, France
- INSERM U1209, Institut Albert Bonniot, F-38000, Grenoble, France
| | - G. Bettega
- Université Grenoble Alpes, Institut Albert Bonniot, F-38000, Grenoble, France
- INSERM U1209, Institut Albert Bonniot, F-38000, Grenoble, France
- Service de Chirurgie Maxillo-faciale, Centre Hospitalier Annecy Genevois, 1 Avenue de l'hôpital, 74370, Epagny Metz-Tessy, France
- Corresponding author.
| | - C. Picart
- CEA, CNRS, Université de Grenoble Alpes, ERL5000 BRM, IRIG Institute, 17 Rue des Martyrs, F-38054, Grenoble, France
- CNRS and Grenoble Institute of Engineering, UMR5628, LMGP, 3 Parvis Louis Néel, F-38016, Grenoble, France
- Institut Universitaire de France, 1 Rue Descartes, 75231, Paris Cedex 05, France
- Corresponding author.
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Park H, Collignon AM, Lepry WC, Ramirez-GarciaLuna JL, Rosenzweig DH, Chaussain C, Nazhat SN. Acellular dense collagen-S53P4 bioactive glass hybrid gel scaffolds form more bone than stem cell delivered constructs. Mater Sci Eng C Mater Biol Appl 2020; 120:111743. [PMID: 33545885 DOI: 10.1016/j.msec.2020.111743] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 10/21/2020] [Accepted: 11/13/2020] [Indexed: 01/07/2023]
Abstract
Dense collagen (DC) gels facilitate the osteoblastic differentiation of seeded dental pulp stem cells (DPSCs) and undergo rapid acellular mineralization when incorporated with bioactive glass particles, both in vitro and subcutaneously in vivo. However, the potential of DC-bioactive glass hybrid gels in delivering DPSCs for bone regeneration in an osseous site has not been investigated. In this study, the efficacies of both acellular and DPSC-seeded DC-S53P4 bioactive glass [(53)SiO2-(23)Na2O-(20)CaO-(4)P2O5, wt%] hybrid gels were investigated in a critical-sized murine calvarial defect. The incorporation of S53P4, an osteostimulative bioactive glass, into DC gels led to its accelerated acellular mineralization in simulated body fluid (SBF), in vitro, where hydroxycarbonated apatite was detected within 1 day. By day 7 in SBF, micro-mechanical analysis demonstrated an 8-fold increase in the compressive modulus of the mineralized gels. The in-situ effect of the bioactive glass on human-DPSCs within DC-S53P4 was evident, by their osteogenic differentiation in the absence of osteogenic supplements. The production of alkaline phosphatase and collagen type I was further increased when cultured in osteogenic media. This osteostimulative effect of DC-S53P4 constructs was confirmed in vivo, where after 8 weeks implantation, both acellular scaffolds and DPSC-seeded DC-S53P4 constructs formed mineralized and vascularized bone matrices with osteoblastic and osteoclastic cell activity. Surprisingly, however, in vivo micro-CT analysis confirmed that the acellular scaffolds generated larger volumes of bone, already visible at week 3 and exhibiting superior trabecular architecture. The results of this study suggest that DC-S53P4 scaffolds negate the need for stem cell delivery for effective bone tissue regeneration and may expedite their path towards clinical applications.
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Affiliation(s)
- Hyeree Park
- Department of Mining and Materials Engineering, McGill University, Canada
| | - Anne-Margaux Collignon
- Université de Paris, URP 2496 Laboratory Orofacial Pathologies, Imaging, and Biotherapies and Life Imaging Platform (PIV), Montrouge, France; AP-HP, GH Nord Université de Paris (Louis Mourier and Bretonneau hospitals), France
| | - William C Lepry
- Department of Mining and Materials Engineering, McGill University, Canada
| | | | - Derek H Rosenzweig
- Division of Orthopedic Surgery, McGill University, Canada; Injury, Repair and Recovery Program, Research Institute of McGill University Health Centre, Canada
| | - Catherine Chaussain
- Université de Paris, URP 2496 Laboratory Orofacial Pathologies, Imaging, and Biotherapies and Life Imaging Platform (PIV), Montrouge, France; AP-HP, GH Nord Université de Paris (Louis Mourier and Bretonneau hospitals), France
| | - Showan N Nazhat
- Department of Mining and Materials Engineering, McGill University, Canada.
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Cho JW, Kim J, Cho WT, Kim JK, Song JH, Kim HJ, Masquelet AC, Oh JK. Circumferential bone grafting around an absorbable gelatin sponge core reduced the amount of grafted bone in the induced membrane technique for critical-size defects of long bones. Injury 2017; 48:2292-2305. [PMID: 28802745 DOI: 10.1016/j.injury.2017.08.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 08/05/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVES The objectives of the study were to introduce a circumferential bone graft around an absorbable gelatin sponge core using an induced membrane technique, to assess its ability to reduce the required amount of graft and to maintain the bone graft, and to evaluate the clinical outcomes in the management of critical-size bone defects. PATIENTS AND METHODS Circumferential bone grafting using a staged induced membrane technique for managing critical-size bone defects was performed in 21 patients. Postoperative computed tomography scans were performed 7days after Hemovac drain removal and 3 months after bone grafting. Volumetric measurements of the defect size, gelatin sponge proportion, and amount of grafted bone were performed by two independent observers using three-dimensional (3D) software. RESULTS The critical-size defects were located at the metadiaphyseal area of 11 tibias, eight femurs, and two humeri. The average defect size was 8.9cm in length and 65.2cm3 in volume. The absorbable gelatin sponge core replaced 21.4% (average) of the defect volume. There was no significant deterioration in the shape of the grafted bone among the serial 3D models. Eighteen patients (86%) were healed radiographically at 9.1 months (average). CONCLUSION Our study suggests that circumferential bone grafting in association with the induced membrane technique could reduce the required amount of bone graft and adequately maintain graft position and shape, with favourable clinical outcomes.
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Affiliation(s)
- Jae-Woo Cho
- Department of Orthopedic Surgery, Korea University Medical Center, 148 Gurodong-ro, Guro-gu, Seoul, Republic of Korea
| | - Jinil Kim
- Department of Orthopedic Surgery, Korea University Medical Center, 148 Gurodong-ro, Guro-gu, Seoul, Republic of Korea
| | - Won-Tae Cho
- Department of Orthopedic Surgery, Korea University Medical Center, 148 Gurodong-ro, Guro-gu, Seoul, Republic of Korea
| | - Jin-Kak Kim
- Department of Orthopedic Surgery, Korea University Medical Center, 148 Gurodong-ro, Guro-gu, Seoul, Republic of Korea
| | - Jong Hoon Song
- Department of Orthopedic Surgery, Hanyang University Medical Center, 153, Kyoungchun-ro, Guri-si, Gyeonggi-do, Republic of Korea
| | - Hyung-Jin Kim
- Department of Orthopedic Surgery, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, 7, Keunjaebong-gil, Hwaseong-si, Gyeonggi-do, Republic of Korea
| | - Alain C Masquelet
- Reconstructive & Hand Surgery Unit, Orthopaedic Department, Hopital Saint-Antoine, 184, rue du Faubourg, Saint Antoine, Paris, France
| | - Jong-Keon Oh
- Department of Orthopedic Surgery, Korea University Medical Center, 148 Gurodong-ro, Guro-gu, Seoul, Republic of Korea.
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Toda M, Ohno J, Shinozaki Y, Ozaki M, Fukushima T. Osteogenic potential for replacing cells in rat cranial defects implanted with a DNA/protamine complex paste. Bone 2014; 67:237-45. [PMID: 25051019 DOI: 10.1016/j.bone.2014.07.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 07/11/2014] [Accepted: 07/16/2014] [Indexed: 11/21/2022]
Abstract
Osteoinductive scaffolds are required for bone tissue engineering. The aim of the present study was to assess the osteoinductive capacity of deoxyribonucleic acid (DNA)/protamine complexes in a rat model of critical-size calvarial defects. In addition, we investigated whether cultured mesenchymal-like cells (DP-cells) outgrown from DNA/protamine complex engrafted defects could differentiate to become osteogenic cells in vitro. DNA/protamine complexes were prepared by reactions between DNA and protamine sulfate solutions with stirring. Critical-sized (8mm) calvarial defects were created in the central parietal bones of adult rats. Defects were either left empty or treated with DNA/protamine complex scaffolds. Subsequently, micro-computed tomography (micro-CT), histological, and immunohistochemical analyses were performed. Micro-CT and histological assays showed that DNA/protamine complex engrafted defects had enhanced bone regeneration. DP-cells were expanded from explants of DNA/protamine complex engrafted defects using an explant outgrowth culture system. Osteogenesis-related factors were assessed in DP-cells after treatment with an osteoblast-inducing reagent (OIR). After 3months, nearly complete healing was observed for DNA/protamine complex engrafted calvarial defects. Increased alkaline phosphatase (ALP) activity and Alizarin red staining were found for cultured DP-cells. These cells had high expression levels of osteogenic genes, including those for RUNX-2, ALP, osteopontin, and osteocalcin. These results indicated that DNA/protamine complexes could facilitate bone regeneration in calvarial defects. Moreover, in vitro osteogenic induction experiments showed that DP-cells outgrown from DNA/protamine engrafted defects had an osteogenic potential. Based on these results, we suggest that DNA/protamine complexes may recruit osteocompetent cells in these defects, where they differentiate to osteogenic cells.
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Affiliation(s)
- Masako Toda
- Department of Oral Growth and Development, Division of Pediatric Dentistry, Fukuoka Dental College, Fukuoka, Japan
| | - Jun Ohno
- Department of Morphological Biology, Division of Pathology, Fukuoka Dental College, Fukuoka, Japan.
| | - Yosuke Shinozaki
- Department of Oral Rehabilitation, Section of Fixed Prosthodontics, Fukuoka Dental College, Fukuoka, Japan
| | - Masao Ozaki
- Department of Oral Growth and Development, Division of Pediatric Dentistry, Fukuoka Dental College, Fukuoka, Japan
| | - Tadao Fukushima
- Research Center for Regenerative Medicine, Fukuoka Dental College, Fukuoka, Japan
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Alfotawei R, Naudi KB, Lappin D, Barbenel J, Di Silvio L, Hunter K, McMahon J, Ayoub A. The use of TriCalcium Phosphate (TCP) and stem cells for the regeneration of osteoperiosteal critical-size mandibular bony defects, an in vitro and preclinical study. J Craniomaxillofac Surg 2014; 42:863-9. [PMID: 24485270 DOI: 10.1016/j.jcms.2013.12.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [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: 04/25/2012] [Revised: 10/02/2013] [Accepted: 12/27/2013] [Indexed: 10/25/2022] Open
Abstract
The investigation aims to assess the reconstruction of critical-size mandibular bone defects in rabbits using beta-Tricalcium Phosphate (β-TCP) scaffolding loaded with stem cells. A 20 mm-long mandibular osteoperiosteal continuity defect was created in 8 New Zealand rabbits and filled with β-TCP scaffolding. In 6 cases bone marrow stem cells (BMSCs) harvested, and enriched, from the posterior iliac crest of the same rabbit were seeded into the scaffolding, while a scaffold was used alone in two cases chosen at random. Radiographic analysis was carried out immediately following surgery and 4, 8 and 12 weeks postoperatively. Cone Beam CT (CBCT) scanning, biomechanical testing and histology assessments were carried out on the explanted mandibles three months postoperatively. The radiography showed minimal new bone formation in all the cases, with significant amounts of undegraded scaffold material visible. Sporadic areas of bone formation were seen, these did not bridge the gap of the created surgical defect. The mechanical properties of the regenerated bone were of an inferior quality when compared with that of the contralateral non-operated side. The addition of BMSCs to the biodegradable β-TCP scaffold did not improve reconstruction of the created mandibular defect. Despite successful aspiration and culture of BMSCs, the survival of these cells in vivo was questionable.
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Affiliation(s)
- Randa Alfotawei
- Biotechnology and Craniofacial Sciences (BACS) Research Group, Glasgow Dental School, 378 Sauchiehall Street, Glasgow, G2 3JZ, United Kingdom
| | - Kurt Busuttil Naudi
- Biotechnology and Craniofacial Sciences (BACS) Research Group, Glasgow Dental School, 378 Sauchiehall Street, Glasgow, G2 3JZ, United Kingdom.
| | - David Lappin
- Biotechnology and Craniofacial Sciences (BACS) Research Group, Glasgow Dental School, 378 Sauchiehall Street, Glasgow, G2 3JZ, United Kingdom
| | - Joseph Barbenel
- Biotechnology and Craniofacial Sciences (BACS) Research Group, Glasgow Dental School, 378 Sauchiehall Street, Glasgow, G2 3JZ, United Kingdom
| | - Lucy Di Silvio
- Biotechnology and Craniofacial Sciences (BACS) Research Group, Glasgow Dental School, 378 Sauchiehall Street, Glasgow, G2 3JZ, United Kingdom
| | - Keith Hunter
- Biotechnology and Craniofacial Sciences (BACS) Research Group, Glasgow Dental School, 378 Sauchiehall Street, Glasgow, G2 3JZ, United Kingdom
| | - Jeremy McMahon
- Biotechnology and Craniofacial Sciences (BACS) Research Group, Glasgow Dental School, 378 Sauchiehall Street, Glasgow, G2 3JZ, United Kingdom
| | - Ashraf Ayoub
- Biotechnology and Craniofacial Sciences (BACS) Research Group, Glasgow Dental School, 378 Sauchiehall Street, Glasgow, G2 3JZ, United Kingdom
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