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Galván-Chacón V, de Melo Pereira D, Vermeulen S, Yuan H, Li J, Habibović P. Decoupling the role of chemistry and microstructure in hMSCs response to an osteoinductive calcium phosphate ceramic. Bioact Mater 2023; 19:127-138. [PMID: 35475029 PMCID: PMC9014318 DOI: 10.1016/j.bioactmat.2022.03.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 11/30/2022] Open
Affiliation(s)
- V.P. Galván-Chacón
- MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht University, the Netherlands
| | - D. de Melo Pereira
- MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht University, the Netherlands
| | - S. Vermeulen
- MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht University, the Netherlands
| | - H. Yuan
- Kuros Biosciences BV, 3723 MB, Bilthoven, the Netherlands
| | - J. Li
- MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht University, the Netherlands
| | - P. Habibović
- MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht University, the Netherlands
- Corresponding author. Maastricht University, MERLN Institute, Universiteitsingel 40, 6229ER, Maastricht, the Netherlands.
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Bohner M, Maazouz Y, Ginebra MP, Habibovic P, Schoenecker JG, Seeherman H, van den Beucken JJ, Witte F. Sustained local ionic homeostatic imbalance caused by calcification modulates inflammation to trigger heterotopic ossification. Acta Biomater 2022; 145:1-24. [PMID: 35398267 DOI: 10.1016/j.actbio.2022.03.057] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 03/30/2022] [Accepted: 03/31/2022] [Indexed: 12/15/2022]
Abstract
Heterotopic ossification (HO) is a condition triggered by an injury leading to the formation of mature lamellar bone in extraskeletal soft tissues. Despite being a frequent complication of orthopedic and trauma surgery, brain and spinal injury, the etiology of HO is poorly understood. The aim of this study is to evaluate the hypothesis that a sustained local ionic homeostatic imbalance (SLIHI) created by mineral formation during tissue calcification modulates inflammation to trigger HO. This evaluation also considers the role SLIHI could play for the design of cell-free, drug-free osteoinductive bone graft substitutes. The evaluation contains five main sections. The first section defines relevant concepts in the context of HO and provides a summary of proposed causes of HO. The second section starts with a detailed analysis of the occurrence and involvement of calcification in HO. It is followed by an explanation of the causes of calcification and its consequences. This allows to speculate on the potential chemical modulators of inflammation and triggers of HO. The end of this second section is devoted to in vitro mineralization tests used to predict the ectopic potential of materials. The third section reviews the biological cascade of events occurring during pathological and material-induced HO, and attempts to propose a quantitative timeline of HO formation. The fourth section looks at potential ways to control HO formation, either acting on SLIHI or on inflammation. Chemical, physical, and drug-based approaches are considered. Finally, the evaluation finishes with a critical assessment of the definition of osteoinduction. STATEMENT OF SIGNIFICANCE: The ability to regenerate bone in a spatially controlled and reproducible manner is an essential prerequisite for the treatment of large bone defects. As such, understanding the mechanism leading to heterotopic ossification (HO), a condition triggered by an injury leading to the formation of mature lamellar bone in extraskeletal soft tissues, would be very useful. Unfortunately, the mechanism(s) behind HO is(are) poorly understood. The present study reviews the literature on HO and based on it, proposes that HO can be caused by a combination of inflammation and calcification. This mechanism helps to better understand current strategies to prevent and treat HO. It also shows new opportunities to improve the treatment of bone defects in orthopedic and dental procedures.
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Cámara-Torres M, Duarte S, Sinha R, Egizabal A, Álvarez N, Bastianini M, Sisani M, Scopece P, Scatto M, Bonetto A, Marcomini A, Sanchez A, Patelli A, Mota C, Moroni L. 3D additive manufactured composite scaffolds with antibiotic-loaded lamellar fillers for bone infection prevention and tissue regeneration. Bioact Mater 2021; 6:1073-1082. [PMID: 33102947 PMCID: PMC7569267 DOI: 10.1016/j.bioactmat.2020.09.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/07/2020] [Accepted: 09/23/2020] [Indexed: 12/11/2022] Open
Abstract
Bone infections following open bone fracture or implant surgery remain a challenge in the orthopedics field. In order to avoid high doses of systemic drug administration, optimized local antibiotic release from scaffolds is required. 3D additive manufactured (AM) scaffolds made with biodegradable polymers are ideal to support bone healing in non-union scenarios and can be given antimicrobial properties by the incorporation of antibiotics. In this study, ciprofloxacin and gentamicin intercalated in the interlamellar spaces of magnesium aluminum layered double hydroxides (MgAl) and α-zirconium phosphates (ZrP), respectively, are dispersed within a thermoplastic polymer by melt compounding and subsequently processed via high temperature melt extrusion AM (~190 °C) into 3D scaffolds. The inorganic fillers enable a sustained antibiotics release through the polymer matrix, controlled by antibiotics counterions exchange or pH conditions. Importantly, both antibiotics retain their functionality after the manufacturing process at high temperatures, as verified by their activity against both Gram + and Gram - bacterial strains. Moreover, scaffolds loaded with filler-antibiotic do not impair human mesenchymal stromal cells osteogenic differentiation, allowing matrix mineralization and the expression of relevant osteogenic markers. Overall, these results suggest the possibility of fabricating dual functionality 3D scaffolds via high temperature melt extrusion for bone regeneration and infection prevention.
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Affiliation(s)
- María Cámara-Torres
- Maastricht University, MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Universiteitssingel 40, 6229, ER, Maastricht, the Netherlands
| | - Stacy Duarte
- Maastricht University, MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Universiteitssingel 40, 6229, ER, Maastricht, the Netherlands
| | - Ravi Sinha
- Maastricht University, MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Universiteitssingel 40, 6229, ER, Maastricht, the Netherlands
| | - Ainhoa Egizabal
- TECNALIA, Basque Research and Technology Alliance (BRTA), Mikeletegi Pasealekua 2, 20009, Donostia-San Sebastian, Spain
| | - Noelia Álvarez
- TECNALIA, Basque Research and Technology Alliance (BRTA), Mikeletegi Pasealekua 2, 20009, Donostia-San Sebastian, Spain
| | - Maria Bastianini
- Prolabin & Tefarm S.r.l., Via Dell'Acciaio, 9 06134, Perugia, Italy
| | - Michele Sisani
- Prolabin & Tefarm S.r.l., Via Dell'Acciaio, 9 06134, Perugia, Italy
| | - Paolo Scopece
- Nadir S.r.l., Via Torino, 155/b, 30172, Venice, Italy
| | - Marco Scatto
- Nadir S.r.l., Via Torino, 155/b, 30172, Venice, Italy
| | - Alessandro Bonetto
- Department of Environmental Sciences, Informatics and Statistics, Ca’ Foscari University of Venice, Dorsoduro 3246, 30172, Venice, Italy
| | - Antonio Marcomini
- Department of Environmental Sciences, Informatics and Statistics, Ca’ Foscari University of Venice, Dorsoduro 3246, 30172, Venice, Italy
| | - Alberto Sanchez
- TECNALIA, Basque Research and Technology Alliance (BRTA), Mikeletegi Pasealekua 2, 20009, Donostia-San Sebastian, Spain
| | - Alessandro Patelli
- Department of Physics and Astronomy, Padova University, Via Marzolo, 8, 35131, Padova, Italy
| | - Carlos Mota
- Maastricht University, MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Universiteitssingel 40, 6229, ER, Maastricht, the Netherlands
| | - Lorenzo Moroni
- Maastricht University, MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Universiteitssingel 40, 6229, ER, Maastricht, the Netherlands
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Mathur A, Li A, Maheshwari V. Nanoscale Architecture of Polymer-Organolead Halide Perovskite Films and the Effect of Polymer Chain Mobility on Device Performance. J Phys Chem Lett 2021; 12:1481-1489. [PMID: 33533616 DOI: 10.1021/acs.jpclett.1c00004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The integration of polymer chains with organolead halide perovskite (MAPbI3) films, leading to enhanced stability and electro-optical performance, is critically affected by the molecular weight of chains. The molecular weight determines the mobility and volume of the chains, which affects the crystallization kinetics and, hence, perovskite grain size. The insulating nature of the chains is another critical factor that affects both ion migration and conduction of electronic charge. The combined effect of these factors leads to optimal performance with the use of medium-length chains. A simple model integrating the two effects accurately fits the response of the polymer-perovskite composite. Further characterization results show that the polymer-perovskite films have a three-layer architecture consisting of nanoscale polymer-rich top and bottom layers. These combined results show that the optimization of performance in polymer-perovskite devices depends critically on the size of the chains due to their multiple effects on the perovskite matrix.
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Affiliation(s)
- Avi Mathur
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Alexander Li
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Vivek Maheshwari
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
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Guillaume O, Geven MA, Varjas V, Varga P, Gehweiler D, Stadelmann VA, Smidt T, Zeiter S, Sprecher C, Bos RRM, Grijpma DW, Alini M, Yuan H, Richards GR, Tang T, Qin L, Yuxiao L, Jiang P, Eglin D. Orbital floor repair using patient specific osteoinductive implant made by stereolithography. Biomaterials 2019; 233:119721. [PMID: 31954958 DOI: 10.1016/j.biomaterials.2019.119721] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 12/20/2019] [Accepted: 12/20/2019] [Indexed: 12/11/2022]
Abstract
The orbital floor (OF) is an anatomical location in the craniomaxillofacial (CMF) region known to be highly variable in shape and size. When fractured, implants commonly consisting of titanium meshes are customized by plying and crude hand-shaping. Nevertheless, more precise customized synthetic grafts are needed to meticulously reconstruct the patients' OF anatomy with better fidelity. As alternative to titanium mesh implants dedicated to OF repair, we propose a flexible patient-specific implant (PSI) made by stereolithography (SLA), offering a high degree of control over its geometry and architecture. The PSI is made of biodegradable poly(trimethylene carbonate) (PTMC) loaded with 40 wt % of hydroxyapatite (called Osteo-PTMC). In this work, we developed a complete work-flow for the additive manufacturing of PSIs to be used to repair the fractured OF, which is clinically relevant for individualized medicine. This work-flow consists of (i) the surgical planning, (ii) the design of virtual PSIs and (iii) their fabrication by SLA, (iv) the monitoring and (v) the biological evaluation in a preclinical large-animal model. We have found that once implanted, titanium meshes resulted in fibrous tissue encapsulation, whereas Osteo-PMTC resulted in rapid neovascularization and bone morphogenesis, both ectopically and in the OF region, and without the need of additional biotherapeutics such as bone morphogenic proteins. Our study supports the hypothesis that the composite osteoinductive Osteo-PTMC brings advantages compared to standard titanium mesh, by stimulating bone neoformation in the OF defects. PSIs made of Osteo-PTMC represent a significant advancement for patients whereby the anatomical characteristics of the OF defect restrict the utilization of traditional hand-shaped titanium mesh.
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Affiliation(s)
- Olivier Guillaume
- AO Research Institute Davos, Clavadelerstrasse 8, CH 7270, Davos, Switzerland
| | - Mike A Geven
- MIRA Institute for Biomedical Engineering and Technical Medicine, Department of Biomaterials Science and Technology, University of Twente, P.O. Box 217, 7500, AE Enschede, the Netherlands
| | - Viktor Varjas
- AO Research Institute Davos, Clavadelerstrasse 8, CH 7270, Davos, Switzerland
| | - Peter Varga
- AO Research Institute Davos, Clavadelerstrasse 8, CH 7270, Davos, Switzerland
| | - Dominic Gehweiler
- AO Research Institute Davos, Clavadelerstrasse 8, CH 7270, Davos, Switzerland
| | | | - Tanja Smidt
- AO Research Institute Davos, Clavadelerstrasse 8, CH 7270, Davos, Switzerland
| | - Stephan Zeiter
- AO Research Institute Davos, Clavadelerstrasse 8, CH 7270, Davos, Switzerland
| | - Christoph Sprecher
- AO Research Institute Davos, Clavadelerstrasse 8, CH 7270, Davos, Switzerland
| | - Ruud R M Bos
- University Medical Center Groningen, Groningen, the Netherlands
| | - Dirk W Grijpma
- MIRA Institute for Biomedical Engineering and Technical Medicine, Department of Biomaterials Science and Technology, University of Twente, P.O. Box 217, 7500, AE Enschede, the Netherlands
| | - Mauro Alini
- AO Research Institute Davos, Clavadelerstrasse 8, CH 7270, Davos, Switzerland
| | - Huipin Yuan
- - Xpand Biotechnology BV, Professor Bronkhorstlaan 10-d, 3723, MB Bilthoven, the Netherlands
| | - Geoff R Richards
- AO Research Institute Davos, Clavadelerstrasse 8, CH 7270, Davos, Switzerland
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Ling Qin
- Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Lai Yuxiao
- Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Peng Jiang
- General Hospital of People's Liberation Army- Beijing 301 Hospital, Beijing, China
| | - David Eglin
- AO Research Institute Davos, Clavadelerstrasse 8, CH 7270, Davos, Switzerland.
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Dorrepaal RM, Gowen AA. Identification of Magnesium Oxychloride Cement Biomaterial Heterogeneity using Raman Chemical Mapping and NIR Hyperspectral Chemical Imaging. Sci Rep 2018; 8:13034. [PMID: 30158695 PMCID: PMC6115415 DOI: 10.1038/s41598-018-31379-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 08/14/2018] [Indexed: 11/10/2022] Open
Abstract
The present study investigated spatial heterogeneity in magnesium oxychloride cements within a model of a mould using hyperspectral chemical imaging (HCI). The ability to inspect cements within a mould allows for the assessment of material formation in real time in addition to factors affecting ultimate material formation. Both macro scale NIR HCI and micro scale pixel-wise Raman chemical mapping were employed to characterise the same specimens. NIR imaging is rapid, however spectra are often convoluted through the overlapping of overtone peaks, which can make interpretation difficult. Raman spectra are more easily interpretable, however Raman imaging can suffer from slower acquisition times, particularly when the signal to noise ratio is relatively poor and the spatial resolution is high. To overcome the limitations of both, Raman/NIR data fusion techniques were explored and implemented. Spectra collected using both modalities were co-registered and intra and inter-modality peak correlations were investigated while k-means cluster patterns were compared. In addition, partial least squares regression models, built using NIR spectra, predicted chemical-identifying Raman peaks with an R2 of up to >0.98. As macro scale imaging presented greater data collection speeds, chemical prediction maps were built using NIR HCIs.
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Affiliation(s)
- Ronan M Dorrepaal
- UCD School of Biosystems and Food Engineering, University College Dublin, Dublin, Ireland.
| | - Aoife A Gowen
- UCD School of Biosystems and Food Engineering, University College Dublin, Dublin, Ireland
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Hasan A, Byambaa B, Morshed M, Cheikh MI, Shakoor RA, Mustafy T, Marei HE. Advances in osteobiologic materials for bone substitutes. J Tissue Eng Regen Med 2018; 12:1448-1468. [DOI: 10.1002/term.2677] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 02/04/2018] [Accepted: 04/12/2018] [Indexed: 01/03/2023]
Affiliation(s)
- Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering; Qatar University; Doha Qatar
| | - Batzaya Byambaa
- Center for Biomedical Engineering, Department of Medicine; Brigham and Women's Hospital, Harvard Medical School; Cambridge MA USA
- Harvard-MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology; Cambridge MA USA
| | - Mahboob Morshed
- School of Life Sciences; Independent University, Bangladesh (IUB); Dhaka Bangladesh
| | - Mohammad Ibrahim Cheikh
- Department of Mechanical Engineering, Faculty of Engineering and Architecture; American University of Beirut; Beirut Lebanon
| | | | - Tanvir Mustafy
- Department of Mechanical Engineering; Ecole Polytechnique de Montreal; Quebec Canada
| | - Hany E. Marei
- Biomedical Research Center; Qatar University; Doha Qatar
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Duan W, Chen C, Haque M, Hayes D, Lopez MJ. Polymer-mineral scaffold augments in vivo equine multipotent stromal cell osteogenesis. Stem Cell Res Ther 2018. [PMID: 29523214 PMCID: PMC5845133 DOI: 10.1186/s13287-018-0790-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Background Use of bioscaffolds to direct osteogenic differentiation of adult multipotent stromal cells (MSCs) without exogenous proteins is a contemporary approach to bone regeneration. Identification of in vivo osteogenic contributions of exogenous MSCs on bioscaffolds after long-term implantation is vital to understanding cell persistence and effect duration. Methods This study was designed to quantify in vivo equine MSC osteogenesis on synthetic polymer scaffolds with distinct mineral combinations 9 weeks after implantation in a murine model. Cryopreserved, passage (P)1, equine bone marrow-derived MSCs (BMSC) and adipose tissue-derived MSCs (ASC) were culture expanded to P3 and immunophenotyped with flow cytometry. They were then loaded by spinner flask on to scaffolds composed of tricalcium phosphate (TCP)/hydroxyapatite (HA) (40:60; HT), polyethylene glycol (PEG)/poly-l-lactic acid (PLLA) (60:40; GA), or PEG/PLLA/TCP/HA (36:24:24:16; GT). Scaffolds with and without cells were maintained in static culture for up to 21 days or implanted subcutaneously in athymic mice that were radiographed every 3 weeks up to 9 weeks. In vitro cell viability and proliferation were determined. Explant composition (double-stranded (ds)DNA, collagen, sulfated glycosaminoglycan (sGAG), protein), equine and murine osteogenic target gene expression, microcomputed tomography (μCT) mineralization, and light microscopic structure were assessed. Results The ASC and BMSC number increased significantly in HT constructs between 7 and 21 days of culture, and BMSCs increased similarly in GT constructs. Radiographic opacity increased with time in GT-BMSC constructs. Extracellular matrix (ECM) components and dsDNA increased significantly in GT compared to HT constructs. Equine and murine osteogenic gene expression was highest in BMSC constructs with mineral-containing scaffolds. The HT constructs with either cell type had the highest mineral deposition based on μCT. Regardless of composition, scaffolds with cells had more ECM than those without, and osteoid was apparent in all BMSC constructs. Conclusions In this study, both exogenous and host MSCs appear to contribute to in vivo osteogenesis. Addition of mineral to polymer scaffolds enhances equine MSC osteogenesis over polymer alone, but pure mineral scaffold provides superior osteogenic support. These results emphasize the need for bioscaffolds that provide customized osteogenic direction of both exo- and endogenous MSCs for the best regenerative potential.
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Affiliation(s)
- Wei Duan
- Laboratory for Equine and Comparative Orthopedic Research, Louisiana State University, Baton Rouge, LA, USA
| | - Cong Chen
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA, USA
| | - Masudul Haque
- Laboratory for Equine and Comparative Orthopedic Research, Louisiana State University, Baton Rouge, LA, USA
| | - Daniel Hayes
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA, USA
| | - Mandi J Lopez
- Laboratory for Equine and Comparative Orthopedic Research, Louisiana State University, Baton Rouge, LA, USA.
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Pei X, Ma L, Zhang B, Sun J, Sun Y, Fan Y, Gou Z, Zhou C, Zhang X. Creating hierarchical porosity hydroxyapatite scaffolds with osteoinduction by three-dimensional printing and microwave sintering. Biofabrication 2017; 9:045008. [PMID: 28976356 DOI: 10.1088/1758-5090/aa90ed] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hierarchical porosity, which includes micropores and macropores in scaffolds, contributes to important multiple biological functions for tissue regeneration. This paper introduces a two-step method of combining three-dimensional printing (3DP) and microwave sintering to fabricate two-level hierarchical porous scaffolds. The results showed that 3D printing made the macroporous structure well-controlled and microwave sintering generated micropores on the macropore surface. The resulting hierarchical macro/microporous hydroxyapatite scaffold induced bone formation following intramuscular implantation. Moreover, when comparing the hierarchical macro/microporous hydroxyapatite scaffold to the non-osteoinductive hydroxyapatite scaffolds (either 3D printed or H2O2 foamed) subjected to muffle sintering which do not have micropores, the critical role of micropores in material-driven bone formation was shown. The findings presented herein could be useful for the further optimization of bone grafting materials for bone regeneration.
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Affiliation(s)
- Xuan Pei
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, People's Republic of China
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Li M, Yang X, Wang W, Zhang Y, Wan P, Yang K, Han Y. Evaluation of the osteo-inductive potential of hollow three-dimensional magnesium-strontium substitutes for the bone grafting application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 73:347-356. [DOI: 10.1016/j.msec.2016.12.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 11/28/2016] [Accepted: 12/07/2016] [Indexed: 12/29/2022]
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Sun L, Danoux CB, Wang Q, Pereira D, Barata D, Zhang J, LaPointe V, Truckenmüller R, Bao C, Xu X, Habibovic P. Independent effects of the chemical and microstructural surface properties of polymer/ceramic composites on proliferation and osteogenic differentiation of human MSCs. Acta Biomater 2016; 42:364-377. [PMID: 27318269 DOI: 10.1016/j.actbio.2016.06.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 06/06/2016] [Accepted: 06/14/2016] [Indexed: 10/21/2022]
Abstract
UNLABELLED Within the general aim of finding affordable and sustainable regenerative solutions for damaged and diseased tissues and organs, significant efforts have been invested in developing synthetic alternatives to natural bone grafts, such as autografts. Calcium phosphate (CaP) ceramics are among widely used synthetic bone graft substitutes, but their mechanical properties and bone regenerative capacity are still outperformed by their natural counterparts. In order to improve the existing synthetic bone graft substitutes, it is imperative to understand the effects of their individual properties on a biological response, and to find a way to combine the desired properties into new, improved functional biomaterials. To this end, we studied the independent effects of the chemical composition and surface microstructure of a poly(lactic acid)/hydroxyapatite (PLA/HA) composite material on the proliferation and osteogenic differentiation of clinically relevant bone marrow-derived human mesenchymal stromal cells (hMSCs). While the molecular weight of the polymer and presence/absence of the ceramic phase were used as the chemical variables, a soft embossing technique was used to pattern the surfaces of all materials with either pits or pillars with identical microscale dimensions. The results indicated that, while cell morphology was affected by both the presence and availability of HA and by the surface microstructure, the effect of the latter parameter on cell proliferation was negligible. The osteogenic differentiation of hMSCs, and in particular the expression of bone morphogenetic protein 2 (BMP-2) and osteopontin (OP) were significantly enhanced when cells were cultured on the composite based on low-molecular-weight PLA, as compared to the high-molecular-weight PLA-based composite and the two pure polymers. The OP expression on the low-molecular-weight PLA-based composite was further enhanced when the surface was patterned with pits. Taken together, within this experimental set up, the individual effect of the chemistry, and in particular of the presence of CaP, was more pronounced than the individual effect of the surface microstructure, although their combined effects were, in some cases, synergistic. The approach presented here opens new routes to study the interactions of biomaterials with the biological environment in greater depths, which can serve as a starting point for developing biomaterials with improved bioactivity. STATEMENT OF SIGNIFICANCE The aim of the this study was to obtain insight into independent effects of the chemical composition and surface microstructure of a poly(lactic acid)/hydroxyapatite (PLA/HA) composite material on the morphology, proliferation and osteogenic differentiation of clinically relevant bone marrow-derived human mesenchymal stromal cells (hMSCs). While the need for synthetic alternatives for natural bone in bone regenerative strategies is rapidly increasing, the clinical performance of synthetic biomaterials needs to be further improved. To do this successfully, we believe that a better understanding of the relationship between a property of a material and a biological response is imperative. This study is a step forward in this direction, and we are therefore convinced that it will be of interest to the readers of Acta Biomaterialia.
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Danoux C, Sun L, Koçer G, Birgani ZT, Barata D, Barralet J, van Blitterswijk C, Truckenmüller R, Habibovic P. Development of Highly Functional Biomaterials by Decoupling and Recombining Material Properties. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:1803-1808. [PMID: 26689847 DOI: 10.1002/adma.201504589] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 10/30/2015] [Indexed: 06/05/2023]
Abstract
Development of functional biomaterials by a design-driven approach is described, whereby individual properties are first decoupled to investigate their sole effects on a biological process. Following this investigation, they are recombined in such a way that the overall performance and applicability of the biomaterial is improved. This is in contrast to classical, processing-driven biomaterials development where the properties of a material are mainly determined by the possibilities of the technique used to produce it.
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Affiliation(s)
- Charlène Danoux
- Department of Tissue Regeneration, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
| | - Lanying Sun
- Department of Tissue Regeneration, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
- Oral Implantology Center, Stomotology Hospital of Jinan, Jingliu Road 101, 250001, Jinan, China
- Department of Oral Implantology, Shangdong University, Wenhuaxi Road 44-1, 250012, Jinan, China
| | - Gülistan Koçer
- Department of Tissue Regeneration, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
| | - Zeinab Tahmasebi Birgani
- Department of Tissue Regeneration, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
| | - David Barata
- Department of Tissue Regeneration, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
| | - Jake Barralet
- Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC, H3A 2B2, Canada
| | - Clemens van Blitterswijk
- Department of Tissue Regeneration, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands
| | - Roman Truckenmüller
- Department of Tissue Regeneration, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands
| | - Pamela Habibovic
- Department of Tissue Regeneration, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands
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13
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Tahmasebi Birgani Z, van Blitterswijk CA, Habibovic P. Monolithic calcium phosphate/poly(lactic acid) composite versus calcium phosphate-coated poly(lactic acid) for support of osteogenic differentiation of human mesenchymal stromal cells. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:54. [PMID: 26787486 PMCID: PMC4718960 DOI: 10.1007/s10856-016-5666-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 01/05/2016] [Indexed: 05/04/2023]
Abstract
Calcium phosphates (CaPs), extensively used synthetic bone graft substitutes, are often combined with other materials with the aim to overcome issues related to poor mechanical properties of most CaP ceramics. Thin ceramic coatings on metallic implants and polymer-ceramic composites are examples of such hybrid materials. Both the properties of the CaP used and the method of incorporation into a hybrid structure are determinant for the bioactivity of the final construct. In the present study, a monolithic composite comprising nano-sized CaP and poly(lactic acid) (PLA) and a CaP-coated PLA were comparatively investigated for their ability to support proliferation and osteogenic differentiation of bone marrow-derived human mesenchymal stromal cells (hMSCs). Both, the PLA/CaP composite, produced using physical mixing and extrusion and CaP-coated PLA, resulting from a biomimetic coating process at near-physiological conditions, supported proliferation of hMSCs with highest rates at PLA/CaP composite. Enzymatic alkaline phosphatase activity as well as the mRNA expression of bone morphogenetic protein-2, osteopontin and osteocalcin were higher on the composite and coated polymer as compared to the PLA control, while no significant differences were observed between the two methods of combining CaP and PLA. The results of this study confirmed the importance of CaP in osteogenic differentiation while the exact properties and the method of incorporation into the hybrid material played a less prominent role.
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Affiliation(s)
- Zeinab Tahmasebi Birgani
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
| | - Clemens A van Blitterswijk
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands
| | - Pamela Habibovic
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands.
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands.
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14
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Zhang H, Mao X, Du Z, Jiang W, Han X, Zhao D, Han D, Li Q. Three dimensional printed macroporous polylactic acid/hydroxyapatite composite scaffolds for promoting bone formation in a critical-size rat calvarial defect model. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2016; 17:136-148. [PMID: 27877865 PMCID: PMC5101962 DOI: 10.1080/14686996.2016.1145532] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 12/23/2015] [Accepted: 01/20/2016] [Indexed: 05/10/2023]
Abstract
We have explored the applicability of printed scaffold by comparing osteogenic ability and biodegradation property of three resorbable biomaterials. A polylactic acid/hydroxyapatite (PLA/HA) composite with a pore size of 500 μm and 60% porosity was fabricated by three-dimensional printing. Three-dimensional printed PLA/HA, β-tricalcium phosphate (β-TCP) and partially demineralized bone matrix (DBM) seeded with bone marrow stromal cells (BMSCs) were evaluated by cell adhesion, proliferation, alkaline phosphatase activity and osteogenic gene expression of osteopontin (OPN) and collagen type I (COL-1). Moreover, the biocompatibility, bone repairing capacity and degradation in three different bone substitute materials were estimated using a critical-size rat calvarial defect model in vivo. The defects were evaluated by micro-computed tomography and histological analysis at four and eight weeks after surgery, respectively. The results showed that each of the studied scaffolds had its own specific merits and drawbacks. Three-dimensional printed PLA/HA scaffolds possessed good biocompatibility and stimulated BMSC cell proliferation and differentiation to osteogenic cells. The outcomes in vivo revealed that 3D printed PLA/HA scaffolds had good osteogenic capability and biodegradation activity with no difference in inflammation reaction. Therefore, 3D printed PLA/HA scaffolds have potential applications in bone tissue engineering and may be used as graft substitutes in reconstructive surgery.
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Affiliation(s)
- Haifeng Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, No. 639, Zhizaoju Road, Huangpu District, Shanghai, 200011, PRChina
- Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PRChina
| | - Xiyuan Mao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, No. 639, Zhizaoju Road, Huangpu District, Shanghai, 200011, PRChina
- Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PRChina
| | - Zijing Du
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, No. 639, Zhizaoju Road, Huangpu District, Shanghai, 200011, PRChina
| | - Wenbo Jiang
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, PRChina
- Institute of Biomedical Materials, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, PRChina
| | - Xiuguo Han
- Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PRChina
| | - Danyang Zhao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, No. 639, Zhizaoju Road, Huangpu District, Shanghai, 200011, PRChina
| | - Dong Han
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, No. 639, Zhizaoju Road, Huangpu District, Shanghai, 200011, PRChina
- Corresponding author.
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, No. 639, Zhizaoju Road, Huangpu District, Shanghai, 200011, PRChina
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15
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Geven MA, Varjas V, Kamer L, Wang X, Peng J, Eglin D, Grijpma DW. Fabrication of patient specific composite orbital floor implants by stereolithography. POLYM ADVAN TECHNOL 2015. [DOI: 10.1002/pat.3589] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mike A. Geven
- MIRA Institute for Biomedical Technology and Technical Medicine; Department of Biomaterials Science and Technology; University of Twente Enschede; The Netherlands
| | | | | | - Xinjiang Wang
- Institute of Orthopaedics; Chinese People's Liberation Army General Hospital (301 Military Hospital); Beijing People's Republic of China
| | - Jiang Peng
- Institute of Orthopaedics; Chinese People's Liberation Army General Hospital (301 Military Hospital); Beijing People's Republic of China
| | | | - Dirk W. Grijpma
- MIRA Institute for Biomedical Technology and Technical Medicine; Department of Biomaterials Science and Technology; University of Twente Enschede; The Netherlands
- University of Groningen, University Medical Center Groningen, W.J. Kolff Institute; Department of Biomedical Engineering; The Netherlands
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16
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Geven MA, Barbieri D, Yuan H, de Bruijn JD, Grijpma DW. Preparation and mechanical properties of photo-crosslinked poly(trimethylene carbonate) and nano-hydroxyapatite composites. Clin Hemorheol Microcirc 2015; 60:3-11. [DOI: 10.3233/ch-151936] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Mike A. Geven
- MIRA Institute for Biomedical Technology and Technical Medicine, and Department of Biomaterials Science and Technology, University of Twente, Enschede, The Netherlands
| | | | - Huipin Yuan
- XPand Biotechnology BV, Bilthoven, The Netherlands
- MIRA Institute for Biomedical Technology and Technical Medicine, and Department of Tissue Regeneration, University of Twente, Enschede, The Netherlands
| | - Joost D. de Bruijn
- MIRA Institute for Biomedical Technology and Technical Medicine, and Department of Biomaterials Science and Technology, University of Twente, Enschede, The Netherlands
- XPand Biotechnology BV, Bilthoven, The Netherlands
| | - Dirk W. Grijpma
- MIRA Institute for Biomedical Technology and Technical Medicine, and Department of Biomaterials Science and Technology, University of Twente, Enschede, The Netherlands
- University of Groningen, University Medical Center Groningen, W.J. Kolff Institute, Department of Biomedical Engineering, Groningen, The Netherlands
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17
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Danoux CB, Bassett DC, Othman Z, Rodrigues AI, Reis RL, Barralet JE, van Blitterswijk CA, Habibovic P. Elucidating the individual effects of calcium and phosphate ions on hMSCs by using composite materials. Acta Biomater 2015; 17:1-15. [PMID: 25676583 DOI: 10.1016/j.actbio.2015.02.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 01/29/2015] [Accepted: 02/03/2015] [Indexed: 10/24/2022]
Abstract
The biological performance of bone graft substitutes based on calcium phosphate bioceramics is dependent on a number of properties including chemical composition, porosity and surface micro- and nanoscale structure. However, in contemporary bioceramics these properties are interlinked, therefore making it difficult to investigate the individual effects of each property on cell behavior. In this study we have attempted to investigate the effects of calcium and inorganic phosphate ions independent from one another by preparing composite materials with polylactic acid (PLA) as a polymeric matrix and calcium carbonate or sodium phosphate salts as fillers. Clinically relevant bone marrow derived human mesenchymal stromal cells (hMSCs) were cultured on these composites and proliferation, osteogenic differentiation and ECM mineralization were investigated with time and were compared to plain PLA control particles. In parallel, cells were also cultured on conventional cell culture plates in media supplemented with calcium or inorganic phosphate to study the effect of these ions independent of the 3D environment created by the particles. Calcium was shown to increase proliferation of cells, whereas both calcium and phosphate positively affected alkaline phosphatase enzyme production. QPCR analysis revealed positive effects of calcium and of inorganic phosphate on the expression of osteogenic markers, in particular bone morphogenetic protein-2 and osteopontin. Higher levels of mineralization were also observed upon exposure to either ion. Effects were similar for cells cultured on composite materials and those cultured in supplemented media, although ion concentrations in the composite cultures were lower. The approach presented here may be a valuable tool for studying the individual effects of a variety of soluble compounds, including bioinorganics, without interference from other material properties.
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18
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Luo X, Barbieri D, Zhang Y, Yan Y, Bruijn JD, Yuan H. Strontium-Containing Apatite/Poly Lactide Composites Favoring Osteogenic Differentiation and in Vivo Bone Formation. ACS Biomater Sci Eng 2015. [DOI: 10.1021/ab500005e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiaoman Luo
- Xpand Biotechnology BV, Professor
Bronkhorstlaan 10, Bld 48, 3723MB Bilthoven, The Netherlands
- MIRA
Institute, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands
| | - Davide Barbieri
- Xpand Biotechnology BV, Professor
Bronkhorstlaan 10, Bld 48, 3723MB Bilthoven, The Netherlands
| | - Yunfei Zhang
- Chongqing Academy of Metrology and Quality Inspection, Yangliu North Road No. 1, Yubei
District, 401123 Chongqing, China
| | - Yonggang Yan
- College
of Physical Science and Technology, Sichuan University, Wangjiang
Road 29, 610064 Chengdu, China
| | - Joost D. Bruijn
- Xpand Biotechnology BV, Professor
Bronkhorstlaan 10, Bld 48, 3723MB Bilthoven, The Netherlands
- MIRA
Institute, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands
- School
of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom
| | - Huipin Yuan
- Xpand Biotechnology BV, Professor
Bronkhorstlaan 10, Bld 48, 3723MB Bilthoven, The Netherlands
- MIRA
Institute, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands
- College
of Physical Science and Technology, Sichuan University, Wangjiang
Road 29, 610064 Chengdu, China
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19
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Luo X, Barbieri D, Passanisi G, Yuan H, de Bruijn JD. Influence of fluoride in poly(d,l-lactide)/apatite composites on bone formation. J Biomed Mater Res B Appl Biomater 2014; 103:841-52. [DOI: 10.1002/jbm.b.33255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 06/27/2014] [Accepted: 07/15/2014] [Indexed: 01/25/2023]
Affiliation(s)
- X. Luo
- Xpand Biotechnology BV; Prof. Bronkhorstlaan 10, Bld 48 3723 MB Bilthoven The Netherlands
- MIRA Institute; University of Twente; Drienerlolaan 5 7522 NB Enschede The Netherlands
| | - D. Barbieri
- Xpand Biotechnology BV; Prof. Bronkhorstlaan 10, Bld 48 3723 MB Bilthoven The Netherlands
| | - G. Passanisi
- Xpand Biotechnology BV; Prof. Bronkhorstlaan 10, Bld 48 3723 MB Bilthoven The Netherlands
| | - H. Yuan
- Xpand Biotechnology BV; Prof. Bronkhorstlaan 10, Bld 48 3723 MB Bilthoven The Netherlands
- MIRA Institute; University of Twente; Drienerlolaan 5 7522 NB Enschede The Netherlands
- College of Physical Science and Technology; Sichuan University; Wangjiang Road 29 610064 Chengdu China
| | - J. D. de Bruijn
- Xpand Biotechnology BV; Prof. Bronkhorstlaan 10, Bld 48 3723 MB Bilthoven The Netherlands
- MIRA Institute; University of Twente; Drienerlolaan 5 7522 NB Enschede The Netherlands
- School of Engineering and Materials Science; Queen Mary University of London; Mile End Rd London E1 4NS UK
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20
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Wang C, Wang S, Li K, Ju Y, Li J, Zhang Y, Li J, Liu X, Shi X, Zhao Q. Preparation of laponite bioceramics for potential bone tissue engineering applications. PLoS One 2014; 9:e99585. [PMID: 24955961 PMCID: PMC4067276 DOI: 10.1371/journal.pone.0099585] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 05/15/2014] [Indexed: 11/19/2022] Open
Abstract
We report a facile approach to preparing laponite (LAP) bioceramics via sintering LAP powder compacts for bone tissue engineering applications. The sintering behavior and mechanical properties of LAP compacts under different temperatures, heating rates, and soaking times were investigated. We show that LAP bioceramic with a smooth and porous surface can be formed at 800°C with a heating rate of 5°C/h for 6 h under air. The formed LAP bioceramic was systematically characterized via different methods. Our results reveal that the LAP bioceramic possesses an excellent surface hydrophilicity and serum absorption capacity, and good cytocompatibility and hemocompatibility as demonstrated by resazurin reduction assay of rat mesenchymal stem cells (rMSCs) and hemolytic assay of pig red blood cells, respectively. The potential bone tissue engineering applicability of LAP bioceramic was explored by studying the surface mineralization behavior via soaking in simulated body fluid (SBF), as well as the surface cellular response of rMSCs. Our results suggest that LAP bioceramic is able to induce hydroxyapatite deposition on its surface when soaked in SBF and rMSCs can proliferate well on the LAP bioceramic surface. Most strikingly, alkaline phosphatase activity together with alizarin red staining results reveal that the produced LAP bioceramic is able to induce osteoblast differentiation of rMSCs in growth medium without any inducing factors. Finally, in vivo animal implantation, acute systemic toxicity test and hematoxylin and eosin (H&E)-staining data demonstrate that the prepared LAP bioceramic displays an excellent biosafety and is able to heal the bone defect. Findings from this study suggest that the developed LAP bioceramic holds a great promise for treating bone defects in bone tissue engineering.
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Affiliation(s)
- Chuanshun Wang
- Department of Orthopaedics, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Shige Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, P. R. China
| | - Kai Li
- Department of Orthopaedics, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Yaping Ju
- Department of Orthopaedics, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Jipeng Li
- Department of Orthopaedics, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Yongxing Zhang
- Department of Orthopaedics, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Jinhua Li
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, P. R. China
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, P. R. China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, P. R. China
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, P. R. China
| | - Qinghua Zhao
- Department of Orthopaedics, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P. R. China
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21
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Barbieri D, de Bruijn JD, van Blitterswijk CA, Yuan H. On the horizon: instructive nanomaterials hold the potential to mimic tissue complexity. IEEE Pulse 2014; 5:44-9. [PMID: 24625591 DOI: 10.1109/mpul.2013.2296802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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Danoux CB, Barbieri D, Yuan H, de Bruijn JD, van Blitterswijk CA, Habibovic P. In vitro and in vivo bioactivity assessment of a polylactic acid/hydroxyapatite composite for bone regeneration. BIOMATTER 2014; 4:e27664. [PMID: 24441389 DOI: 10.4161/biom.27664] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Synthetic bone graft substitutes based on composites consisting of a polymer and a calcium-phosphate (CaP) ceramic are developed with the aim to satisfy both mechanical and bioactivity requirements for successful bone regeneration. In the present study, we have employed extrusion to produce a composite consisting of 50 wt.% poly(D,L-lactic acid) (PLA) and 50 wt.% nano-sized hydroxyapatite (HA) powder, achieving homogeneous distribution of the ceramic within the polymeric phase. In vitro, in both a simulated physiological saline (SPS) and a simulated body fluid (SBF), a greater weight loss was observed for PLA/HA than for PLA particles upon 12-week immersion. Furthermore, in SPS, a continuous release of calcium and phosphate from the composite was measured, whereas in SBF, decrease of the amount of the two ions in the solution was observed both for PLA and PLA/HA accompanied with the formation of a CaP layer on the surface. In vitro characterization of the composite bioactivity was performed by culturing human mesenchymal stromal cells (hMSCs) and assessing proliferation and osteogenic differentiation, with PLA as a control. Both PLA/HA composite and PLA control were shown to support hMSCs proliferation over a period of two weeks. In addition, the composite significantly enhanced alkaline phosphatase (ALP) activity of hMSCs in osteogenic medium as compared with the polymer control. A novel implant design was employed to develop implants from dense, extruded materials, suitable for testing osteoinductivity in vivo. In a preliminary study in dogs, PLA/HA composite implants induced heterotopic bone formation upon 12-week intramuscular implantation in all animals, in contrast to PLA control, which was not osteoinductive. Unlike in vitro, a more pronounced degradation of PLA was observed in vivo as compared with PLA/HA composite.
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Affiliation(s)
- Charlène B Danoux
- Department of Tissue Regeneration; University of Twente; Enschede, The Netherlands
| | | | - Huipin Yuan
- Department of Tissue Regeneration; University of Twente; Enschede, The Netherlands; Xpand Biotechnology BV; Bilthoven, The Netherlands
| | | | | | - Pamela Habibovic
- Department of Tissue Regeneration; University of Twente; Enschede, The Netherlands
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