1
|
d’Arros C, Rouillon T, Veziers J, Malard O, Borget P, Daculsi G. Bioactivity of Biphasic Calcium Phosphate Granules, the Control of a Needle-Like Apatite Layer Formation for Further Medical Device Developments. Front Bioeng Biotechnol 2020; 7:462. [PMID: 32117904 PMCID: PMC7025562 DOI: 10.3389/fbioe.2019.00462] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 12/19/2019] [Indexed: 11/13/2022] Open
Abstract
Biphasic calcium phosphate (BCP) bioceramics (hydroxyapatite/tricalcium phosphate, or HA/TCP) for tissue engineering and drug delivery systems is a unique know-how. A mechanical mixture of HA and TCP does not lead to such bioactive ceramics. The wet elaboration conditions of calcium-deficient apatite (CDA) or CDHA, followed by sintering, converts it into TCP and HA. The dissolution precipitation of nano-sized needle-like crystals at the surface of BCP occurs on time at body temperature. Combining several technics of characterization [scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive x-ray spectroscopy (EDX), Brunauer-Emmett-Teller method (BET), chemical analysis, x-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FTIR)], we demonstrated an evolution on time of the HA/β-TCP. The current paper describes the crystallographic evolution of initial β-TCP rhombohedral crystallographic structure to microsized needle-like layer corresponding to apatitic TCP form. This phenomenon leads to an increase of the HA/TCP ratio, since hexagonal apatitic TCP is similar to hexagonal HA. However, the Ca/P ratio (reflecting the chemical composition HA/TCP) remains unchanged. Thus, the high reactivity of BCP involves dynamic evolution from rhombohedral to hexagonal structure, but not a chemical change. The dynamic process is reversible by calcination. These events are absolutely necessary for smart scaffolds in bone regeneration and orthobiology.
Collapse
Affiliation(s)
- Cyril d’Arros
- INSERM, UMR 1229, Regenerative Medicine and Skeleton, ONIRIS, Université de Nantes, Nantes, France
- Biomatlante – Advanced Medical Solutions Group plc, Vigneux-de-Bretagne, France
| | - Thierry Rouillon
- INSERM, UMR 1229, Regenerative Medicine and Skeleton, ONIRIS, Université de Nantes, Nantes, France
- UFR Odontologie, Université de Nantes, Nantes, France
| | - Joelle Veziers
- INSERM, UMR 1229, Regenerative Medicine and Skeleton, ONIRIS, Université de Nantes, Nantes, France
- UFR Odontologie, Université de Nantes, Nantes, France
- PHU4 OTONN, CHU de Nantes, Nantes, France
- INSERM, UMS 016, CNRS 3556, Structure Fédérative de Recherche François Bonamy, SC3M Facility, CHU de Nantes, Université de Nantes, Nantes, France
| | - Olivier Malard
- INSERM, UMR 1229, Regenerative Medicine and Skeleton, ONIRIS, Université de Nantes, Nantes, France
- Service d’Oto-Rhino-Laryngologie et de Chirurgie Cervico-Faciale, PHU4 OTONN, CHU de Nantes, Nantes, France
| | - Pascal Borget
- Biomatlante – Advanced Medical Solutions Group plc, Vigneux-de-Bretagne, France
| | - Guy Daculsi
- INSERM, UMR 1229, Regenerative Medicine and Skeleton, ONIRIS, Université de Nantes, Nantes, France
| |
Collapse
|
2
|
Exosomes in the Repair of Bone Defects: Next-Generation Therapeutic Tools for the Treatment of Nonunion. BIOMED RESEARCH INTERNATIONAL 2019; 2019:1983131. [PMID: 31467871 PMCID: PMC6699293 DOI: 10.1155/2019/1983131] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 07/22/2019] [Indexed: 12/11/2022]
Abstract
Nonunion with bone defects, a common complication after long bone fracture, is a major challenge for orthopaedic surgeons worldwide because of the high incidence rate and difficulties in achieving successful treatment. Bone defects are the main complications of nonunion. The conventional biological treatments for nonunion with bone defects involve the use of autologous bone grafts or bone graft substitutes and cell-based therapy. Traditional nonunion treatments have always been associated with safety issues and various other complications. Bone grafts have limited autologous cancellous bone and there is a risk of infection. Additionally, problems with bone graft substitutes, including rejection and stimulation of bone formation, have been noted, and the health of the stem cell niche is a major consideration in cell-based therapy. In recent years, researchers have found that exosomes can be used to deliver functional RNA and mediate cell-to-cell communication, suggesting that exosomes may repair bone defects by regulating cells and cytokines involved in bone metabolism. In this review, we highlight the possible relationships between risk factors for nonunion and exosomes. Additionally, we discuss the roles of exosomes in bone metabolism and bone regeneration.
Collapse
|
3
|
Pereira RC, Benelli R, Canciani B, Scaranari M, Daculsi G, Cancedda R, Gentili C. Beta-tricalcium phosphate ceramic triggers fast and robust bone formation by human mesenchymal stem cells. J Tissue Eng Regen Med 2019; 13:1007-1018. [PMID: 30811859 DOI: 10.1002/term.2848] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 02/14/2019] [Accepted: 02/21/2019] [Indexed: 12/13/2022]
Abstract
Due to their osteoconductive and inductive properties, a variety of calcium phosphate (CaP) scaffolds are commonly used in orthopaedics as graft material to heal bone defects. In this study, we have used two CaP scaffolds with different hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP) ratios (MBCP®; 60/40 and MBCP+ ®; 20/80) to investigate their intrinsic capacity to favour human bone marrow stem cells (hBMSCs) osteogenic differentiation capacity. We report that MBCP+ ® showed in in vitro culture model a higher rate of calcium ion release in comparison with MBCP®. In two defined coculture systems, the hBMSC seeded onto MBCP+ ® presented an increased amount of VEGF secretion, resulting in an enhanced endothelial cell proliferation and capillary formation compared with hBMSC seeded onto MBCP®. When both ceramics combined with hBMSC were implanted in a nude mouse model, we observed a faster osteogenic differentiation and enhancement mature bone deposition sustained by the presence of a vast host vasculature within the MBCP+ ® ceramics. Bone formation was observed in samples highly positive to the activation of calcium sensing receptor protein (CaSr) on the surface of seeded hBMSC that also shown higher BMP-2 protein expression. With these data we provide valuable insights in the possible mechanisms of ossification and angiogenesis by hBMSC that we believe to be primed by calcium ions released from CaP scaffolds. Evidences could lead to an optimization of ceramic scaffolds to prime bone repair.
Collapse
Affiliation(s)
- Rui C Pereira
- Laboratory of Regenerative Medicine, Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy
| | - Roberto Benelli
- Laboratory of Immunology, IRCCS AOU San Martino, Genoa, Italy
| | - Barbara Canciani
- Laboratory of Regenerative Medicine, Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy
| | - Monica Scaranari
- Laboratory of Regenerative Medicine, Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy
| | - Guy Daculsi
- INSERM LIOAD U791, Dental Faculty, Nantes University, Nantes, France
| | - Ranieri Cancedda
- Laboratory of Regenerative Medicine, Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy
| | - Chiara Gentili
- Laboratory of Regenerative Medicine, Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy.,Centre of Excellence for Biomedical Research (CEBR), University of Genoa, Genoa, Italy
| |
Collapse
|
4
|
Rh Owen G, Dard M, Larjava H. Hydoxyapatite/beta-tricalcium phosphate biphasic ceramics as regenerative material for the repair of complex bone defects. J Biomed Mater Res B Appl Biomater 2017; 106:2493-2512. [PMID: 29266701 DOI: 10.1002/jbm.b.34049] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 10/27/2017] [Accepted: 10/31/2017] [Indexed: 01/07/2023]
Abstract
Bone is a composite material composed of collagen and calcium phosphate (CaP) mineral. The collagen gives bone its flexibility while the inorganic material gives bone its resilience. The CaP in bone is similar in composition and structure to the mineral hydroxyapatite (HA) and is bioactive, osteoinductive and osteoconductive. Therefore synthetic versions of bone apatite (BA) have been developed to address the demand for autologous bone graft substitutes. Synthetic HA (s-HA) are stiff and strong, but brittle. These lack of physical attributes limit the use of synthetic apatites in situations where no physical loading of the apatite occurs. s-HA chemical properties differ from BA and thus change the physical and mechanical properties of the material. Consequently, s-HA is more chemically stable than BA and thus its resorption rate is slower than the rate of bone regeneration. One solution to this problem is to introduce a faster resorbing CaP, such as β-tricalcium phosphate (β-TCP), when synthesizing the material creating a biphasic (s-HA and β-TCP) formulation of calcium phosphate (BCP). The focus of this review is to introduce the major differences between BCP and biological apatites and how material scientists have overcome the inadequacies of the synthetic counterparts. Examples of BCP performance in vitro and in vivo following structural and chemical modifications are provided as well as novel ultrastructural data. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2493-2512, 2018.
Collapse
Affiliation(s)
- Gethin Rh Owen
- Department of Oral, Biological & Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver V6T 1Z3, Canada
| | - Michel Dard
- College of Dentistry, New York University, New York, New York
| | - Hannu Larjava
- Department of Oral, Biological & Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver V6T 1Z3, Canada
| |
Collapse
|
5
|
Hernigou P, Dubory A, Pariat J, Potage D, Roubineau F, Jammal S, Flouzat Lachaniette CH. Beta-tricalcium phosphate for orthopedic reconstructions as an alternative to autogenous bone graft. Morphologie 2017; 101:173-179. [PMID: 28501353 DOI: 10.1016/j.morpho.2017.03.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 01/25/2017] [Accepted: 03/21/2017] [Indexed: 11/16/2022]
Abstract
Autogenous bone graft (autograft) remains the gold standard in the treatment of many orthopedic problems. However, graft harvest can lead to perioperative morbidity and increased cost. We tested the hypothesis that an osteoconductive matrix, beta-tricalcium phosphate (β-TCP), would be a safe and effective alternative to autograft alone. Beta-tricalcium phosphate (β-TCP) is considered as one of the most promising biomaterials for bone reconstruction. This study analyzes the outcomes of patients who received β-TCP as bone substitutes in orthopedic surgery. METHODS A total of 50 patients were enrolled in a controlled, non-inferiority clinical trial to compare the safety and efficacy of β-TCP (25 patients) with those of autograft (25 patients) in indications requiring usually autograft. These 50 patients were categorized according to the etiology and morphology of the 54 bone defects resulting from elective surgical procedures, such as 34 open-wedge high tibial osteotomies, and 20 osteonecrosis treatments with core decompression. Radiographic (healing process with or without integration of β-TCP), clinical (no other surgical procedure), functional outcomes and safety (with or without complications) were assessed through fifty-two weeks postoperatively. RESULTS With regard to the primary endpoint (radiographic evolution), the fusion rate of the 34 open-wedge osteotomies was 100% (17 among 17) for patients in the group with β-TCP compared with 94% (16 among 17) for patients in the autograft group. For the 20 cavitary defects (osteonecrosis), the radiographic union rates, as determined by the presence of osseous bridging, were 100% for patients in the group with β-TCP and 100% for those in the autograft group. Clinically at one year, all quality-of-life and functional outcome data supported non-inferiority of β-TCP compared with autograft, and patients in the β-TCP group were found to have less pain and an improved safety profile. CONCLUSIONS Treatment with β-TCP resulted in comparable fusion rates, less pain and fewer side effects as compared with treatment with autograft. This study established clinical parameters where the β-TCP alone can successfully support the osteogenic process.
Collapse
Affiliation(s)
- P Hernigou
- Department of Orthopaedic Surgery, University Paris East (UPEC), hôpital Henri-Mondor, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France.
| | - A Dubory
- Department of Orthopaedic Surgery, University Paris East (UPEC), hôpital Henri-Mondor, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France
| | - J Pariat
- Department of Orthopaedic Surgery, University Paris East (UPEC), hôpital Henri-Mondor, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France
| | - D Potage
- Department of Orthopaedic Surgery, University Paris East (UPEC), hôpital Henri-Mondor, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France
| | - F Roubineau
- Department of Orthopaedic Surgery, University Paris East (UPEC), hôpital Henri-Mondor, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France
| | - S Jammal
- Department of Orthopaedic Surgery, University Paris East (UPEC), hôpital Henri-Mondor, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France
| | - C H Flouzat Lachaniette
- Department of Orthopaedic Surgery, University Paris East (UPEC), hôpital Henri-Mondor, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France
| |
Collapse
|
6
|
Petta D, Fussell G, Hughes L, Buechter DD, Sprecher CM, Alini M, Eglin D, D'Este M. Calcium phosphate/thermoresponsive hyaluronan hydrogel composite delivering hydrophilic and hydrophobic drugs. J Orthop Translat 2016; 5:57-68. [PMID: 30035075 PMCID: PMC5987042 DOI: 10.1016/j.jot.2015.11.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 11/11/2015] [Accepted: 11/17/2015] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND/OBJECTIVE Advanced synthetic biomaterials that are able to reduce or replace the need for autologous bone transplantation are still a major clinical need in orthopaedics, dentistry, and trauma. Key requirements for improved bone substitutes are optimal handling properties, ability to fill defects of irregular shape, and capacity for delivering osteoinductive stimuli. MATERIALS AND METHODS In this study, we targeted these requirements by preparing a new composite of β-tricalcium phosphate (TCP) and a thermoresponsive hyaluronan (HA) hydrogel. Dissolution properties of the composite as a function of the particle size and polymeric phase molecular weight and concentration were analysed to identify the best compositions. RESULTS Owing to its amphiphilic character, the composite was able to provide controlled release of both recombinant human bone morphogenetic protein-2 and dexamethasone, selected as models for a biologic and a small hydrophobic molecule, respectively. CONCLUSION The TCP-thermoresponsive HA hydrogel composite developed in this work can be used for preparing synthetic bone substitutes in the form of injectable or mouldable pastes and can be supplemented with small hydrophobic molecules or biologics for improved osteoinductivity.
Collapse
Affiliation(s)
- Dalila Petta
- AO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos, Switzerland
| | - Garland Fussell
- DePuy Synthes Biomaterials, 1230 Wilson Drive, West Chester, PA 19380, USA
| | - Lisa Hughes
- DePuy Synthes Biomaterials, 1230 Wilson Drive, West Chester, PA 19380, USA
| | | | | | - Mauro Alini
- AO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos, Switzerland
| | - David Eglin
- AO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos, Switzerland
| | - Matteo D'Este
- AO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos, Switzerland
| |
Collapse
|