201
|
Montesi M, Panseri S, Dapporto M, Tampieri A, Sprio S. Sr-substituted bone cements direct mesenchymal stem cells, osteoblasts and osteoclasts fate. PLoS One 2017; 12:e0172100. [PMID: 28196118 PMCID: PMC5308610 DOI: 10.1371/journal.pone.0172100] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 01/31/2017] [Indexed: 12/14/2022] Open
Abstract
Strontium-substituted apatitic bone cements enriched with sodium alginate were developed as a potential modulator of bone cells fate. The biological impact of the bone cement were investigated in vitro through the study of the effect of the nanostructured apatitic composition and the doping of strontium on mesenchymal stem cells, pre-osteoblasts and osteoclasts behaviours. Up to 14 days of culture the bone cells viability, proliferation, morphology and gene expression profiles were evaluated. The results showed that different concentrations of strontium were able to evoke a cell-specific response, in fact an inductive effect on mesenchymal stem cells differentiation and pre-osteoblasts proliferation and an inhibitory effect on osteoclasts activity were observed. Moreover, the apatitic structure of the cements provided a biomimetic environment suitable for bone cells growth. Therefore, the combination of biological features of this bone cement makes it as promising biomaterials for tissue regeneration.
Collapse
Affiliation(s)
- Monica Montesi
- Institute of Science and Technology for Ceramics, National Research Council, Faenza, Ravenna, Italy
| | - Silvia Panseri
- Institute of Science and Technology for Ceramics, National Research Council, Faenza, Ravenna, Italy
| | - Massimiliano Dapporto
- Institute of Science and Technology for Ceramics, National Research Council, Faenza, Ravenna, Italy
| | - Anna Tampieri
- Institute of Science and Technology for Ceramics, National Research Council, Faenza, Ravenna, Italy
| | - Simone Sprio
- Institute of Science and Technology for Ceramics, National Research Council, Faenza, Ravenna, Italy
| |
Collapse
|
202
|
Mueller B, Treccani L, Rezwan K. Antibacterial active open-porous hydroxyapatite/lysozyme scaffolds suitable as bone graft and depot for localised drug delivery. J Biomater Appl 2017; 31:1123-1134. [DOI: 10.1177/0885328216688074] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An engineered synthetic scaffold for bone regeneration should provide temporary structural support and a medium for controlled and localised release of bioavailable medical drugs. In this work, a method is proposed to incorporate biologically active agents without impairing agent activity into open-porous resorbable hydroxyapatite scaffolds. Scaffolds are obtained by a one-pot freeze gelation process and loaded with different amounts of lysozyme, a model macromolecular drug with antibacterial activity. The antibacterial activity is tested by submerging hydroxyapatite scaffolds with 0.5 to 2.5 wt.% lysozyme into two different bacteria stock solutions. A complete dieback of M. luteus bacteria when in contact with the scaffolds is observed. Higher lysozyme amount in the scaffold leads to faster dieback. In contact with scaffolds containing 2.5 wt.% lysozyme after 30 min, no viable bacteria can be observed. An amount of 0.5 wt.% lysozyme in the scaffolds is sufficient to kill all bacteria after a contact time of 24 h. For L. innocua, a bacteriostatic effect is observed. The scaffolds have spongiosa-like stability and are suitable bone implant substitutes. As agents are released from the scaffolds by degrees over a time period of at least 9 days, they are particularly attractive as depot for localised drug delivery of bioactive macromolecular drugs.
Collapse
|
203
|
Jeong N, Kim DH, Cho HS, Yoon SY. Preparation and characterization of silanized-hydroxypropyl methylcellulose/phase transformed calcium phosphate composite bone cements. JOURNAL OF THE KOREAN CRYSTAL GROWTH AND CRYSTAL TECHNOLOGY 2016. [DOI: 10.6111/jkcgct.2016.26.6.243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
204
|
Li H, Edin F, Hayashi H, Gudjonsson O, Danckwardt-Lillieström N, Engqvist H, Rask-Andersen H, Xia W. Guided growth of auditory neurons: Bioactive particles towards gapless neural - electrode interface. Biomaterials 2016; 122:1-9. [PMID: 28107660 DOI: 10.1016/j.biomaterials.2016.12.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 11/30/2016] [Accepted: 12/16/2016] [Indexed: 01/26/2023]
Abstract
Cochlear implant (CI) is a successful device to restore hearing. Despite continuous development, frequency discrimination is poor in CI users due to an anatomical gap between the auditory neurons and CI electrode causing current spread and unspecific neural stimulation. One strategy to close this anatomical gap is guiding the growth of neuron dendrites closer to CI electrodes through targeted slow release of neurotrophins. Biodegradable calcium phosphate hollow nanospheres (CPHSs) were produced and their capacity for uptake and release of neurotrophins investigated using 125I-conjugated glia cell line-derived neurotrophic factor (GDNF). The CPHSs were coated onto CI electrodes and loaded with neurotrophins. Axon guidance effect of slow-released neurotrophins from the CPHSs was studied in an in vitro 3D culture model. CPHS coating bound and released GDNF with an association rate constant 6.3 × 103 M-1s-1 and dissociation rate 2.6 × 10-5 s-1, respectively. Neurites from human vestibulocochlear ganglion explants found and established physical contact with the GDNF-loaded CPHS coating on the CI electrodes placed 0.7 mm away. Our results suggest that neurotrophin delivery through CPHS coating is a plausible way to close the anatomical gap between auditory neurons and electrodes. By overcoming this gap, selective neural activation and the fine hearing for CI users become possible.
Collapse
Affiliation(s)
- Hao Li
- Otolaryngology and Head & Neck Surgery, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Fredrik Edin
- Otolaryngology and Head & Neck Surgery, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | | | - Olafur Gudjonsson
- Neurosurgery, Department of Neuroscience, Uppsala University, Uppsala, Sweden
| | | | - Håkan Engqvist
- Applied Material Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
| | - Helge Rask-Andersen
- Otolaryngology and Head & Neck Surgery, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden.
| | - Wei Xia
- Applied Material Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden.
| |
Collapse
|
205
|
Yao C, Zhu J, Xie A, Shen Y, Li H, Zheng B, Wei Y. Graphene oxide and creatine phosphate disodium dual template-directed synthesis of GO/hydroxyapatite and its application in drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 73:709-715. [PMID: 28183664 DOI: 10.1016/j.msec.2016.11.083] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 11/07/2016] [Accepted: 11/21/2016] [Indexed: 11/17/2022]
Abstract
In this study, graphene oxide and creatine phosphate disodium acted as dual template and was employed to synthesize graphene oxide (GO)/hydroxyapatite (HA) hybrids as drug carriers. In the rapid preparation of GO/HA hybrids, creatine phosphate disodium salt (CPDS) severed as a phosphorus source and graphene oxide acted as a template in aqueous solution. The effects of the reaction temperature, time and pH value of the aqueous solution on the morphology of the product were investigated. The result showed that the hydrolysis of CPDS under hydrothermal condition played an important role in the formation of hierarchical hollow GO/HA hybrids. The GO nanosheets provided reactive sites for the binding of HA nanoparticles and absorbing ibuprofen (IBU) molecules. The GO/HA hybrids had ideal sustained drug-release behavior. It indicated that the prepared GO/HA hybrids may be promising materials for applications in biomedical area.
Collapse
Affiliation(s)
- Chengli Yao
- School of Chemistry and Chemical Engineering, Anhui University, Anhui 230601, PR China; School of Chemistry and Chemical Engineering, Hefei Normal University, Anhui 230601, PR China
| | - Jinmiao Zhu
- School of Chemistry and Chemical Engineering, Hefei Normal University, Anhui 230601, PR China
| | - Anjian Xie
- School of Chemistry and Chemical Engineering, Anhui University, Anhui 230601, PR China.
| | - Yuhua Shen
- School of Chemistry and Chemical Engineering, Anhui University, Anhui 230601, PR China
| | - Hongying Li
- School of Chemistry and Chemical Engineering, Hefei Normal University, Anhui 230601, PR China
| | - Bin Zheng
- School of Chemistry and Chemical Engineering, Hefei Normal University, Anhui 230601, PR China
| | - Yanxin Wei
- School of Chemistry and Chemical Engineering, Hefei Normal University, Anhui 230601, PR China
| |
Collapse
|
206
|
Zhao R, Ren X, Xie C, Kong X. Towards understanding the distribution and tumor targeting of sericin regulated spherical calcium phosphate nanoparticles. Microsc Res Tech 2016; 80:321-330. [DOI: 10.1002/jemt.22800] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 09/14/2016] [Accepted: 10/15/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Ruibo Zhao
- Institute of Biomaterials and Marine Biological Resources, College of Life Sciences; Zhejiang Sci-Tech University; Hangzhou 310018 China
- Center for Biomaterials and Biopathways, Department of Chemistry; Zhejiang University; Hangzhou Zhejiang 310027 China
| | - Xiaoyuan Ren
- Institute of Biomaterials and Marine Biological Resources, College of Life Sciences; Zhejiang Sci-Tech University; Hangzhou 310018 China
| | - Chungang Xie
- Institute of Biomaterials and Marine Biological Resources, College of Life Sciences; Zhejiang Sci-Tech University; Hangzhou 310018 China
| | - Xiangdong Kong
- Institute of Biomaterials and Marine Biological Resources, College of Life Sciences; Zhejiang Sci-Tech University; Hangzhou 310018 China
- The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, College of Materials and Textile; Zhejiang Sci-Tech University; Hangzhou 310018 China
| |
Collapse
|
207
|
Naineni R, Ravi V, Subbaraya DK, Prasanna JS, Panthula VR, Koduganti RR. Effect of Alendronate with β - TCP Bone Substitute in Surgical Therapy of Periodontal Intra-Osseous Defects: A Randomized Controlled Clinical Trial. J Clin Diagn Res 2016; 10:ZC113-7. [PMID: 27656552 DOI: 10.7860/jcdr/2016/20965.8365] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 05/31/2016] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Alendronate (ALN), an aminobisphosphonate, inhibits osteoclastic bone resorption and also stimulates osteogenesis. Beta-Tricalcium Phosphate (β-TCP) is an osteoconductive graft material which provides a scaffold for bone formation and also a widely used drug delivery vehicle for growth factors and antibiotics. Drug delivery vehicles, like β-TCP, improve the potency of the drugs by specific local site delivery of the drug, optimal release characteristics and easy handling. AIM The aim of the this study was to evaluate the bone formation potential of 400μg ALN delivered in β-TCP in the treatment of periodontal intra-osseous defects. MATERIALS AND METHODS Thirty patients with periodontal defects were randomly assigned to 400μg ALN + β-TCP + Saline (test) group and β-TCP + Saline (active-control) group. Clinical parameters like Clinical Attachment Level (CAL) gain, Probing Depth (PD) reduction, post-operative Gingival Recession (GR) were assessed from the baseline, 3 months and 6 months recordings. Radiographic parameters like Linear Bone Growth (LBG), Percentage Bone Fill (%BF), and change in alveolar crest height (ACH) were assessed from baseline and 6 months radiographs. RESULTS Mean measurements in the ALN test group for CAL gain (3.4 ± 0.74 mm), PD reduction (4.33 ± 0.82 mm), LBG (2.88 ± 0.88 mm), and %BF (51.98 ± 15.84%) were significantly greater with a p-value <0.05 compared to the mean measurements of CAL gain (2.20 ± 0.86 mm), PD reduction (3.20 ± 1.15 mm), LBG (1.70 ± 0.39 mm), and %BF (30.35 ± 6.88%) of the control group. There was mild alveolar crestal apposition (0.32 ± 0.68 mm) in the ALN test group and mild alveolar crestal resorption (-0.24 ± 0.40 mm) in the control group. CONCLUSION 400μg ALN combined with β-TCP bone graft material was effective in improving soft tissue parameters, inhibiting alveolar crestal resorption and enhancing bone formation, compared to β-TCP alone.
Collapse
Affiliation(s)
- Rohini Naineni
- Reader, Department of Periodontics, Panineeya Mahavidyalaya Institute of Dental Sciences and Research Centre , Hyderabad, Telangana, India
| | - Vishali Ravi
- Senior Lecturer, Department of Periodontics, Panineeya Mahavidyalaya Institute of Dental Sciences and Research Centre , Hyderabad, Telangana, India
| | | | - Jammula Surya Prasanna
- Professor, Department of Periodontics, Panineeya Mahavidyalaya Institute of Dental Sciences and Research Centre , Hyderabad, Telangana, India
| | - Veerendranath Reddy Panthula
- Professor, Department of Periodontics, Panineeya Mahavidyalaya Institute of Dental Sciences and Research Centre , Hyderabad, Telangana, India
| | - Rekha Rani Koduganti
- Professor and Head, Department of Periodontics, Panineeya Mahavidyalaya Institute of Dental Sciences and Research Centre , Hyderabad, Telangana, India
| |
Collapse
|
208
|
Lagazzo A, Barberis F, Carbone C, Ramis G, Finocchio E. Molecular level interactions in brushite-aminoacids composites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 70:721-727. [PMID: 27770947 DOI: 10.1016/j.msec.2016.09.030] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 08/13/2016] [Accepted: 09/12/2016] [Indexed: 11/30/2022]
Abstract
The interaction of aminoacids (Glycine, Proline, Lysine) with brushite based bone cements has been investigated by several techniques (FTIR spectroscopy, Thermogravimetry-TG, Scanning Electron Microscopy-SEM, mechanical properties studies), with the aim to elucidate the properties of the resulting composite materials and the interaction occurring at molecular level between the inorganic matrix and the organic moieties. Brushite phase is predominantly obtained also in the presence of aminoacids added during preparation of the bone cement. Focusing on Glycine incorporation, the presence of a fraction of bulk Glycine, weakly interacting with the inorganic matrix, together with Glycine specifically interacting with adsorption sites can be envisaged, as pointed out by FT IR and thermogravimetric data. In detail, FT-IR data evidenced changes in shape and position of bands associated to stretching modes of the carboxylic groups in Glycine structure, which can be explained by the coordination of these functional groups with the Ca ions in the matrix. Heating this composite at controlled temperature results in the detection of a condensation products, either cyclic condensation product, either dipeptide. Diffuse and not specific H-bonding seems to be the main form of interaction of Proline and Lysine with brushite. Due to the coordination with Ca ions here described, Glycine can act as retardant during brushite preparation, allowing good workability of the resulting composite.
Collapse
Affiliation(s)
- Alberto Lagazzo
- Dept. of Civil, Chemical and Environmental Engineering-DICCA, University of Genova, P.le J.F. Kennedy 1, I-16129 Genova, Italy
| | - Fabrizio Barberis
- Dept. of Civil, Chemical and Environmental Engineering-DICCA, University of Genova, P.le J.F. Kennedy 1, I-16129 Genova, Italy
| | - Cristina Carbone
- Dept. of Earth, Environment and Life Science-DISTAV, University of Genova, C.so Europa 26, I-16132 Genova, Italy
| | - Gianguido Ramis
- Dept. of Civil, Chemical and Environmental Engineering-DICCA, University of Genova, P.le J.F. Kennedy 1, I-16129 Genova, Italy
| | - Elisabetta Finocchio
- Dept. of Civil, Chemical and Environmental Engineering-DICCA, University of Genova, P.le J.F. Kennedy 1, I-16129 Genova, Italy.
| |
Collapse
|
209
|
Varma A, Mukasyan AS, Rogachev AS, Manukyan KV. Solution Combustion Synthesis of Nanoscale Materials. Chem Rev 2016; 116:14493-14586. [PMID: 27610827 DOI: 10.1021/acs.chemrev.6b00279] [Citation(s) in RCA: 273] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Solution combustion is an exciting phenomenon, which involves propagation of self-sustained exothermic reactions along an aqueous or sol-gel media. This process allows for the synthesis of a variety of nanoscale materials, including oxides, metals, alloys, and sulfides. This Review focuses on the analysis of new approaches and results in the field of solution combustion synthesis (SCS) obtained during recent years. Thermodynamics and kinetics of reactive solutions used in different chemical routes are considered, and the role of process parameters is discussed, emphasizing the chemical mechanisms that are responsible for rapid self-sustained combustion reactions. The basic principles for controlling the composition, structure, and nanostructure of SCS products, and routes to regulate the size and morphology of the nanoscale materials are also reviewed. Recently developed systems that lead to the formation of novel materials and unique structures (e.g., thin films and two-dimensional crystals) with unusual properties are outlined. To demonstrate the versatility of the approach, several application categories of SCS produced materials, such as for energy conversion and storage, optical devices, catalysts, and various important nanoceramics (e.g., bio-, electro-, magnetic), are discussed.
Collapse
Affiliation(s)
- Arvind Varma
- School of Chemical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
| | | | - Alexander S Rogachev
- Institute of Structural Macrokinetics and Materials Science, RAS , Chernogolovka 142432, Russia.,National University of Science and Technology, MISiS , Moscow 119049, Russia
| | | |
Collapse
|
210
|
Pizzoccaro MA, Nikel O, Sene S, Philippe C, Mutin PH, Bégu S, Vashishth D, Laurencin D. Adsorption of benzoxaboroles on hydroxyapatite phases. Acta Biomater 2016; 41:342-50. [PMID: 27282646 PMCID: PMC4969180 DOI: 10.1016/j.actbio.2016.06.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 05/29/2016] [Accepted: 06/04/2016] [Indexed: 12/20/2022]
Abstract
UNLABELLED Benzoxaboroles are a family of molecules that are finding an increasing number of applications in the biomedical field, particularly as a "privileged scaffold" for the design of new drugs. Here, for the first time, we determine the interaction of these molecules with hydroxyapatites, in view of establishing (i) how benzoxaborole drugs may adsorb onto biological apatites, as this could impact on their bioavailability, and (ii) how apatite-based materials can be used for their formulation. Studies on the adsorption of the benzoxaborole motif (C7H7BO2, referred to as BBzx) on two different apatite phases were thus performed, using a ceramic hydroxyapatite (HAceram) and a nanocrystalline hydroxyapatite (HAnano), the latter having a structure and composition more similar to the one found in bone mineral. In both cases, the grafting kinetics and mechanism were studied, and demonstration of the surface attachment of the benzoxaborole under the form of a tetrahedral benzoxaborolate anion was established using (11)B solid state NMR (including (11)B-(31)P correlation experiments). Irrespective of the apatite used, the grafting density of the benzoxaborolates was found to be low, and more generally, these anions demonstrated a poor affinity for apatite surfaces, notably in comparison with other anions commonly found in biological media, such as carboxylates and (organo)phosphates. The study was then extended to the adsorption of a molecule with antimicrobial and antifungal properties (3-piperazine-bis(benzoxaborole)), showing, on a more general perspective, how hydroxyapatites can be used for the development of novel formulations of benzoxaborole drugs. STATEMENT OF SIGNIFICANCE Benzoxaboroles are an emerging family of molecules which have attracted much attention in the biomedical field, notably for the design of new drugs. However, the way in which these molecules, once introduced in the body, may interact with bone mineral is still unknown, and the possibility of associating benzoxaboroles to calcium phosphates for drug-formulation purposes has not been looked into. Here, we describe the first study of the adsorption of benzoxaboroles on hydroxyapatite, which is the main mineral phase present in bone. We describe the mode of grafting of benzoxaboroles on this material, and show that they only weakly bind to its surface, especially in comparison to other ionic species commonly found in physiological media, such as phosphates and carboxylates. This demonstrates that administered benzoxaborole drugs are unlikely to remain adsorbed on hydroxyapatite surfaces for long periods of time, which means that their biodistribution will not be affected by such phenomena. Moreover, this work shows that the formulation of benzoxaborole drugs by association to calcium phosphates like hydroxyapatite will lead to a rapid release of the molecules.
Collapse
Affiliation(s)
- Marie-Alix Pizzoccaro
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM, Place E. Bataillon, CC1701, 34095 Montpellier cedex 05, France
| | - Ondrej Nikel
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM, Place E. Bataillon, CC1701, 34095 Montpellier cedex 05, France; Department of Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, United States
| | - Saad Sene
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM, Place E. Bataillon, CC1701, 34095 Montpellier cedex 05, France
| | - Coralie Philippe
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM, Place E. Bataillon, CC1701, 34095 Montpellier cedex 05, France
| | - P Hubert Mutin
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM, Place E. Bataillon, CC1701, 34095 Montpellier cedex 05, France
| | - Sylvie Bégu
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM, Place E. Bataillon, CC1701, 34095 Montpellier cedex 05, France
| | - Deepak Vashishth
- Department of Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, United States
| | - Danielle Laurencin
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM, Place E. Bataillon, CC1701, 34095 Montpellier cedex 05, France.
| |
Collapse
|
211
|
Design and Fabrication of Complex Scaffolds for Bone Defect Healing: Combined 3D Plotting of a Calcium Phosphate Cement and a Growth Factor-Loaded Hydrogel. Ann Biomed Eng 2016; 45:224-236. [PMID: 27384939 DOI: 10.1007/s10439-016-1685-4] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 06/23/2016] [Indexed: 10/21/2022]
Abstract
Additive manufacturing enables the fabrication of scaffolds with defined architecture. Versatile printing technologies such as extrusion-based 3D plotting allow in addition the incorporation of biological components increasing the capability to restore functional tissues. We have recently described the fabrication of calcium phosphate cement (CPC) scaffolds by 3D plotting of an oil-based CPC paste under mild conditions. In the present study, we have developed a strategy for growth factor loading based on multichannel plotting: a biphasic scaffold design was realised combining CPC with VEGF-laden, highly concentrated hydrogel strands. As hydrogel component, alginate and an alginate-gellan gum blend were evaluated; the blend exhibited a more favourable VEGF release profile and was chosen for biphasic scaffold fabrication. After plotting, two-step post-processing was performed for both, hydrogel crosslinking and CPC setting, which was shown to be compatible with both materials. Finally, a scaffold was designed and fabricated which can be applied for testing in a rat critical size femur defect. Optimization of CPC plotting enabled the fabrication of highly resolved structures with strand diameters of only 200 µm. Micro-computed tomography revealed a precise strand arrangement and an interconnected pore space within the biphasic scaffold even in swollen state of the hydrogel strands.
Collapse
|
212
|
Masaeli R, Jafarzadeh Kashi TS, Dinarvand R, Rakhshan V, Shahoon H, Hooshmand B, Mashhadi Abbas F, Raz M, Rajabnejad A, Eslami H, Khoshroo K, Tahriri M, Tayebi L. Efficacy of the biomaterials 3wt%-nanostrontium-hydroxyapatite-enhanced calcium phosphate cement (nanoSr-CPC) and nanoSr-CPC-incorporated simvastatin-loaded poly(lactic-co-glycolic-acid) microspheres in osteogenesis improvement: An explorative multi-phase experimental in vitro/vivo study. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:171-83. [PMID: 27612702 DOI: 10.1016/j.msec.2016.06.033] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Revised: 05/14/2016] [Accepted: 06/09/2016] [Indexed: 11/17/2022]
Abstract
AIMS The purpose of this multi-phase explorative in vivo animal/surgical and in vitro multi-test experimental study was to (1) create a 3wt%-nanostrontium hydroxyapatite-enhanced calcium phosphate cement (Sr-HA/CPC) for increasing bone formation and (2) creating a simvastatin-loaded poly(lactic-co-glycolic acid) (SIM-loaded PLGA) microspheres plus CPC composite (SIM-loaded PLGA+nanostrontium-CPC). The third goal was the extensive assessment of multiple in vitro and in vivo characteristics of the above experimental explorative products in vitro and in vivo (animal and surgical studies). METHODS AND RESULTS PERTAINING TO SR-HA/CPC Physical and chemical properties of the prepared Sr-HA/CPC were evaluated. MTT assay and alkaline phosphatase activities, and radiological and histological examinations of Sr-HA/CPC, CPC and negative control were compared. X-ray diffraction (XRD) indicated that crystallinity of the prepared cement increased by increasing the powder-to-liquid ratio. Incorporation of Sr-HA into CPC increased MTT assay (biocompatibility) and ALP activity (P<0.05). Histomorphometry showed greater bone formation after 4weeks, after implantation of Sr-HA/CPC in 10 rats compared to implantations of CPC or empty defects in the same rats (n=30, ANOVA P<0.05). METHODS AND RESULTS PERTAINING TO SIM-LOADED PLGA MICROSPHERES+NANOSTRONTIUM-CPC COMPOSITE: After SEM assessment, the produced composite of microspheres and enhanced CPC were implanted for 8weeks in 10 rabbits, along with positive and negative controls, enhanced CPC, and enhanced CPC plus SIM (n=50). In the control group, only a small amount of bone had been regenerated (localized at the boundary of the defect); whereas, other groups showed new bone formation within and around the materials. A significant difference was found in the osteogenesis induced by the groups sham control (16.96±1.01), bone materials (32.28±4.03), nanostrontium-CPC (24.84±2.6), nanostrontium-CPC-simvastatin (40.12±3.29), and SIM-loaded PLGA+nanostrontium-CPC (44.8±6.45) (ANOVA P<0.001). All the pairwise comparisons were significant (Tukey P<0.01), except that of nanostrontium-CPC-simvastatin and SIM-loaded PLGA+nanostrontium-CPC. This confirmed the efficacy of the SIM-loaded PLGA+nanostrontium-CPC composite, and its superiority over all materials except SIM-containing nanostrontium-CPC.
Collapse
Affiliation(s)
- Reza Masaeli
- Dental Biomaterials Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Tahereh Sadat Jafarzadeh Kashi
- Dental Biomaterials Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran; Iranian Tissue Bank and Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Rassoul Dinarvand
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Vahid Rakhshan
- Iranian Tissue Bank and Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Shahoon
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Shahed University, Tehran, Iran
| | - Behzad Hooshmand
- Department of Periodontology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Mashhadi Abbas
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Shahid Beheshti Medical Science University, Tehran, Iran
| | - Majid Raz
- Biomaterials Group, Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Alireza Rajabnejad
- Biomaterials Group, Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Hossein Eslami
- Biomaterials Group, Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Kimia Khoshroo
- Dental Biomaterials Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran; Department of Developmental Sciences, School of Dentistry, Marquette University, Milwaukee, WI, USA
| | - Mohammadreza Tahriri
- Dental Biomaterials Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran; Iranian Tissue Bank and Research Center, Tehran University of Medical Sciences, Tehran, Iran; Biomaterials Group, Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran; Department of Developmental Sciences, School of Dentistry, Marquette University, Milwaukee, WI, USA
| | - Lobat Tayebi
- Department of Developmental Sciences, School of Dentistry, Marquette University, Milwaukee, WI, USA; Biomaterials and Advanced Drug Delivery Laboratory, School of Medicine, Stanford University, Palo Alto, CA, USA
| |
Collapse
|
213
|
Ruan Q, Liberman D, Zhang Y, Ren D, Zhang Y, Nutt S, Moradian-Oldak J. Assembly of Layered Monetite-Chitosan Nanocomposite and Its Transition to Organized Hydroxyapatite. ACS Biomater Sci Eng 2016; 2:1049-1058. [PMID: 28804756 PMCID: PMC5553052 DOI: 10.1021/acsbiomaterials.6b00164] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Bioinspired synthesis of hierarchically structured calcium phosphate (CaP) material is a highly promising strategy for developing improved bone substitute materials. However, synthesis of CaP materials with outstanding mechanical properties still remains an ongoing challenge. Inspired by the formation of lamellar structure in nacre, we designed an organic matrix composed of chitosan and cis-butenediolic acid (maleic acid, MAc) that could assemble into a layered complex and further guide the mineralization of monetite crystals, resulting in the formation of organized and parallel arrays of monetite platelets with a brick-and-mortar structure. Using the layered monetite-chitosan composite as a precursor, we were able to synthesize hydroxyapatite (HAp) with multiscale hierarchically ordered structure via a topotactic phase transformation process. On the nanoscale, needlelike HAp crystallites assembled into organized bundles that aligned to form highly oriented plates on the microscale. On the large-scale level, these plates with different crystal orientations were stacked together to form a layered structure. The organized structures and composite feature yielded CaP materials with improved mechanical properties close to those of bone. Our study introduces a biomimetic approach that may be practical for the design of advanced, mechanically robust materials for biomedical applications.
Collapse
Affiliation(s)
- Qichao Ruan
- Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, 2250 Alcazar Street, Los Angeles, California 90033, United States
| | - David Liberman
- Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, 2250 Alcazar Street, Los Angeles, California 90033, United States
| | - Yuzheng Zhang
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, 3651 Watt Way, Los Angeles, California 90089, United States
| | - Dongni Ren
- Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, 2250 Alcazar Street, Los Angeles, California 90033, United States
| | - Yunpeng Zhang
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, 3651 Watt Way, Los Angeles, California 90089, United States
| | - Steven Nutt
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, 3651 Watt Way, Los Angeles, California 90089, United States
| | - Janet Moradian-Oldak
- Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, 2250 Alcazar Street, Los Angeles, California 90033, United States
| |
Collapse
|
214
|
Parent M, Magnaudeix A, Delebassée S, Sarre E, Champion E, Viana Trecant M, Damia C. Hydroxyapatite microporous bioceramics as vancomycin reservoir: Antibacterial efficiency and biocompatibility investigation. J Biomater Appl 2016; 31:488-498. [PMID: 27278782 DOI: 10.1177/0885328216653108] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
AbstarctInfections after bone reconstructive surgery are a real therapeutic and economic issue for the modern health care system. As the pathogen (most often Staphylococcus aureus) is able to develop a biofilm inside the bone, local delivery of antibiotics is of interest since high drug concentrations would be delivered directly at the target place. In this context, this study evaluated a porous hydroxyapatite implant as biocompatible bone substitute and vancomycin-delivery system to prevent post-operative infections. A simple method of impregnation with optimised conditions insured a high antibiotic loading (up to 2.3 ± 0.3 mg/m2), with a complete in vitro release obtained within 1-5 days. Additionally, the bacteriostatic and bactericidal effects of vancomycin were retained after loading on hydroxyapatite, as demonstrated after challenge with a Staphylococcus aureus strain. Regarding the biocompatibility, a wound healing assay of pre-osteoblastic MC3T3-E1 cells exposed to various concentrations of vancomycin revealed a dose-dependent reduction in cell migration for antibiotic concentrations higher than 1 mg/mL. Meanwhile, cells were able to proliferate normally on vancomycin-loaded scaffolds, although cell initial adhesion was seriously impaired for scaffolds loaded with 2.3 mg/m2 Loaded scaffolds could be stored up to three months at room temperature without any degradation of the antibiotic. Together, these results demonstrate the efficacy of these hydroxyapatite bone substitutes for local delivery of vancomycin in the context of bone infection.
Collapse
Affiliation(s)
- Marianne Parent
- Univ. Limoges, CNRS, ENSCI, SPCTS, UMR 7315, Limoges, France
| | | | - Sylvie Delebassée
- Univ. Limoges, Laboratoire de Chimie des Substances Naturelles, Limoges, France
| | - Elisabeth Sarre
- Univ. Limoges, CNRS, ENSCI, SPCTS, UMR 7315, Limoges, France
| | - Eric Champion
- Univ. Limoges, CNRS, ENSCI, SPCTS, UMR 7315, Limoges, France
| | | | - Chantal Damia
- Univ. Limoges, CNRS, ENSCI, SPCTS, UMR 7315, Limoges, France
| |
Collapse
|
215
|
Ostrowski N, Roy A, Kumta PN. Magnesium Phosphate Cement Systems for Hard Tissue Applications: A Review. ACS Biomater Sci Eng 2016; 2:1067-1083. [PMID: 33445235 DOI: 10.1021/acsbiomaterials.6b00056] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In the search for more ideal bone graft materials for clinical application, the investigation into ceramic bone cements or bone void filler is ongoing. Calcium phosphate-based materials have been widely explored and implemented for medical use in bone defect repair. Such materials are an excellent choice because the implant mimics the natural chemistry of mineralized bone matrix and in injectable cement form, can be implemented with relative ease. However, of the available calcium phosphate cements, none fully meet the ideal standard, displaying low strengths and acidic setting reactions or slow setting times, and are often very slow to resorb in vivo. The study of magnesium phosphates for bone cements is a relatively new field compared to traditional calcium phosphate bone cements. Although reports are more limited, preliminary studies have shown that magnesium phosphate cements (MPC) may be a strong alternative to calcium phosphates for certain applications. The goal of the present publication is to review the history and achievements of magnesium phosphate-based cements or bone void fillers to date, assess how these cements compare with calcium phosphate competitors and to analyze the future directions and outlook for the research, development, and clinical implementation of these cements.
Collapse
Affiliation(s)
- Nicole Ostrowski
- Swanson School of Engineering, University of Pittsburgh, 815C Benedum Hall, 3700 O'Hara Street, Pittsburgh, Pennsylvania 15261, United States
| | - Abhijit Roy
- Swanson School of Engineering, University of Pittsburgh, 815C Benedum Hall, 3700 O'Hara Street, Pittsburgh, Pennsylvania 15261, United States
| | - Prashant N Kumta
- Swanson School of Engineering, University of Pittsburgh, 815C Benedum Hall, 3700 O'Hara Street, Pittsburgh, Pennsylvania 15261, United States
| |
Collapse
|
216
|
Canal C, Khurana K, Gallinetti S, Bhatt S, Pulpytel J, Arefi-Khonsari F, Ginebra MP. Design of calcium phosphate scaffolds with controlled simvastatin release by plasma polymerisation. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.03.069] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
217
|
Dabiri SMH, Lagazzo A, Barberis F, Farokhi M, Finochio E, Pastorino L. Characterization of alginate-brushite in-situ hydrogel composites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:502-510. [PMID: 27287148 DOI: 10.1016/j.msec.2016.04.104] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 04/13/2016] [Accepted: 04/30/2016] [Indexed: 11/24/2022]
Abstract
In the present study alginate-brushite composite hydrogels were in-situ synthetized and characterized with respect to preparation parameters. Specifically, the influence of initial pH value and initial concentration of phosphate precursor on the in-situ fabrication of the composite hydrogel were taken into account. The composite hydrogels were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric (TGA, DTG) and differential thermal analysis (DTA). Finally, the cell viability tests were carried out (MTT) over the incubation time period of 3, 7, and 14days. The results revealed that the formation and the crystalline stability of brushite were highly dependent on the initial pH value. It was shown that as the pH reached to the value of 6, characteristics peaks of brushite appeared in the FTIR spectra. Besides, the XRD and thermal analysis results were in a good accordance with those of FTIR. In addition, the SEM images demonstrated that the plate like brushite was formed inside the alginate matrix. Also, a considerable impact of pH variation on the biocompatibility of samples was noticed so that the majority of samples especially those prepared in the acidic conditions were toxic.
Collapse
Affiliation(s)
| | - Alberto Lagazzo
- Department of Civil, Chemical and Environmental Engineering, University of Genoa, Genoa, Italy
| | - Fabrizio Barberis
- Department of Civil, Chemical and Environmental Engineering, University of Genoa, Genoa, Italy
| | - Mehdi Farokhi
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
| | - Elisabetta Finochio
- Department of Civil, Chemical and Environmental Engineering, University of Genoa, Genoa, Italy
| | - Laura Pastorino
- Department of Informatics, Bioengineering, Robotics, and System Engineering, University of Genoa, Genoa, Italy
| |
Collapse
|
218
|
Farbod K, Sariibrahimoglu K, Curci A, Hayrapetyan A, Hakvoort JN, van den Beucken JJ, Iafisco M, Margiotta N, Leeuwenburgh SC. Controlled Release of Chemotherapeutic Platinum–Bisphosphonate Complexes from Injectable Calcium Phosphate Cements. Tissue Eng Part A 2016; 22:788-800. [DOI: 10.1089/ten.tea.2016.0001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Kambiz Farbod
- Department of Biomaterials, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Kemal Sariibrahimoglu
- Department of Biomaterials, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Alessandra Curci
- Department of Chemistry, Università degli Studi di Bari Aldo Moro, Bari, Italy
| | - Astghik Hayrapetyan
- Department of Biomaterials, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jan N.W. Hakvoort
- Department of Biomaterials, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jeroen J.J.P. van den Beucken
- Department of Biomaterials, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Michele Iafisco
- Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), Faenza, Italy
| | - Nicola Margiotta
- Department of Chemistry, Università degli Studi di Bari Aldo Moro, Bari, Italy
| | - Sander C.G. Leeuwenburgh
- Department of Biomaterials, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| |
Collapse
|
219
|
Choi HW, Kim J, Kim J, Kim Y, Song HB, Kim JH, Kim K, Kim WJ. Light-Induced Acid Generation on a Gatekeeper for Smart Nitric Oxide Delivery. ACS NANO 2016; 10:4199-208. [PMID: 26953516 DOI: 10.1021/acsnano.5b07483] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We report herein the design of a light-responsive gatekeeper for smart nitric oxide (NO) delivery. The gatekeeper is composed of a pH-jump reagent as an intermediary of stimulus and a calcium phosphate (CaP) coating as a shielding layer for NO release. The light irradiation and subsequent acid generation are used as triggers for uncapping the gatekeeper and releasing NO. The acids generated from a light-activated pH-jump agent loaded in the mesoporous nanoparticles accelerated the degradation of the CaP-coating layers on the nanoparticles, facilitating the light-responsive NO release from diazeniumdiolate by exposing a NO donor to physiological conditions. Using the combination of the pH-jump reagent and CaP coating, we successfully developed a light-responsive gatekeeper system for spatiotemporal-controlled NO delivery.
Collapse
Affiliation(s)
- Hyung Woo Choi
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS) , Pohang 37673, Republic of Korea
| | - Jihoon Kim
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS) , Pohang 37673, Republic of Korea
| | - Jinhwan Kim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) , Pohang 37673, Republic of Korea
| | - Yonghwi Kim
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS) , Pohang 37673, Republic of Korea
| | - Hyun Beom Song
- Department of Biomedical Sciences, Seoul National University Graduate School , Seoul 03080, Republic of Korea
| | - Jeong Hun Kim
- Department of Biomedical Sciences, Seoul National University Graduate School , Seoul 03080, Republic of Korea
| | - Kimoon Kim
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS) , Pohang 37673, Republic of Korea
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) , Pohang 37673, Republic of Korea
| | - Won Jong Kim
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS) , Pohang 37673, Republic of Korea
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) , Pohang 37673, Republic of Korea
| |
Collapse
|
220
|
Ding S, Zhang J, Tian Y, Huang B, Yuan Y, Liu C. Magnesium modification up-regulates the bioactivity of bone morphogenetic protein-2 upon calcium phosphate cement via enhanced BMP receptor recognition and Smad signaling pathway. Colloids Surf B Biointerfaces 2016; 145:140-151. [PMID: 27156155 DOI: 10.1016/j.colsurfb.2016.04.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 03/28/2016] [Accepted: 04/25/2016] [Indexed: 12/13/2022]
Abstract
Efficient presentation of growth factors is one of the great challenges in tissue engineering. In living systems, bioactive factors exist in soluble as well as in matrix-bound forms, both of which play an integral role in regulating cell behaviors. Herein, effect of magnesium on osteogenic bioactivity of recombinant human bone morphogenetic protein-2 (rhBMP-2) was investigated systematically with a series of Mg modified calcium phosphate cements (xMCPCs, x means the content of magnesium phosphate cement wt%) as matrix model. The results indicated that the MCPC, especially 5MCPC, could promote the rhBMP-2-induced in vitro osteogenic differentiation via Smad signaling of C2C12 cells. Further studies demonstrated that all MCPC substrates exhibited similar rhBMP-2 release rate and preserved comparable conformation and biological activity of the released rhBMP-2. Also, the ionic extracts of MCPC made little difference to the bioactivity of rhBMP-2, either in soluble or in matrix-bound forms. However, with the quartz crystal microbalance (QCM), we observed a noticeable enhancement of rhBMP-2 mass-uptake on 5MCPC as well as a better recognition of the bound rhBMP-2 to BMPR IA and BMPR II. In vivo results demonstrated a better bone regeneration capacity of 5MCPC/rhBMP-2. From the above, our results demonstrated that it was the Mg anchored on the underlying substrates that tailored the way of rhBMP-2 bound on MCPC, and thus facilitated the recognition of BMPRs to stimulate osteogenic differentiation. The study will guide the development of Mg-doped bioactive bone implants for tissue regeneration.
Collapse
Affiliation(s)
- Sai Ding
- The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China; Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China
| | - Jing Zhang
- The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China; Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China
| | - Yu Tian
- The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China; Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China
| | - Baolin Huang
- The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China; Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China
| | - Yuan Yuan
- The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China; Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China.
| | - Changsheng Liu
- The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China; Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China; Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China.
| |
Collapse
|
221
|
Perez RA, Mestres G. Role of pore size and morphology in musculo-skeletal tissue regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 61:922-39. [DOI: 10.1016/j.msec.2015.12.087] [Citation(s) in RCA: 218] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 12/23/2015] [Accepted: 12/28/2015] [Indexed: 01/04/2023]
|
222
|
Targeted Delivery Systems for Molecular Therapy in Skeletal Disorders. Int J Mol Sci 2016; 17:428. [PMID: 27011176 PMCID: PMC4813278 DOI: 10.3390/ijms17030428] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 03/10/2016] [Accepted: 03/14/2016] [Indexed: 01/11/2023] Open
Abstract
Abnormalities in the integral components of bone, including bone matrix, bone mineral and bone cells, give rise to complex disturbances of skeletal development, growth and homeostasis. Non-specific drug delivery using high-dose systemic administration may decrease therapeutic efficacy of drugs and increase the risk of toxic effects in non-skeletal tissues, which remain clinical challenges in the treatment of skeletal disorders. Thus, targeted delivery systems are urgently needed to achieve higher drug delivery efficiency, improve therapeutic efficacy in the targeted cells/tissues, and minimize toxicities in non-targeted cells/tissues. In this review, we summarize recent progress in the application of different targeting moieties and nanoparticles for targeted drug delivery in skeletal disorders, and also discuss the advantages, challenges and perspectives in their clinical translation.
Collapse
|
223
|
Mouzakis D, Zaoutsos SP, Bouropoulos N, Rokidi S, Papanicolaou G. Influence of artificially-induced porosity on the compressive strength of calcium phosphate bone cements. J Biomater Appl 2016; 31:112-20. [DOI: 10.1177/0885328216636762] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The biological and mechanical nature of calcium phosphate cements (CPC's) matches well with that of bone tissues, thus they can be considered as an appropriate environment for bone repair as bone defect fillers. The current study focuses on the experimental characterization of the mechanical properties of CPCs that are favorably used in clinical applications. Aiming on evaluation of their mechanical performance, tests in compression loading were conducted in order to determine the mechanical properties of the material under study. In this context, experimental results occurring from the above mechanical tests on porous specimens that were fabricated from three different porous additives, namely albumin, gelatin and sodium alginate, are provided, while assessment of their mechanical properties in respect to the used porous media is performed. Additionally, samples reinforced with hydroxyapatite crystals were also tested in compression and the results are compared with those of the above tested porous CPCs. The knowledge obtained allows the improvement of their biomechanical properties by controlling their structure in a micro level, and finds a way to compromise between mechanical and biological response.
Collapse
Affiliation(s)
- Dionysios Mouzakis
- Department of Mechanical Engineering, Technological Educational Institute of Thessaly, Larissa, Greece
| | | | - Nikolaos Bouropoulos
- Department of Materials Science, University of Patras, Rion, Greece
- Institute of Chemical Engineering and High Temperature Chemical Processes FORTH, Patras, Greece
| | - Stamatia Rokidi
- Department of Materials Science, University of Patras, Rion, Greece
| | - George Papanicolaou
- Composite Materials Group, Department of Mechanical and Aeronautics Engineering, University of Patras, Rion, Greece
| |
Collapse
|
224
|
Brückner T, Schamel M, Kübler AC, Groll J, Gbureck U. Novel bone wax based on poly(ethylene glycol)-calcium phosphate cement mixtures. Acta Biomater 2016; 33:252-63. [PMID: 26805427 DOI: 10.1016/j.actbio.2016.01.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 01/15/2016] [Accepted: 01/19/2016] [Indexed: 11/24/2022]
Abstract
Classic bone wax is associated with drawbacks such as the risk of infection, inflammation and hindered osteogenesis. Here, we developed a novel self-setting bone wax on the basis of hydrophilic poly(ethylene glycol) (PEG) and hydroxyapatite (HA) forming calcium phosphate cement (CPC), to overcome the problems that are linked to the use of conventional beeswax systems. Amounts of up to 10 wt.% of pregelatinized starch were additionally supplemented as hemostatic agent. After exposure to a humid environment, the PEG phase dissolved and was exchanged by penetrating water that interacted with the HA precursor (tetracalcium phosphate (TTCP)/monetite) to form highly porous, nanocrystalline HA via a dissolution/precipitation reaction. Simultaneously, pregelatinized starch could gel and supply the bone wax with liquid sealing features. The novel bone wax formulation was found to be cohesive, malleable and after hardening under aqueous conditions, it had a mechanical performance (∼2.5 MPa compressive strength) that is comparable to that of cancellous bone. It withstood systolic blood pressure conditions for several days and showed antibacterial properties for almost one week, even though 60% of the incorporated drug vancomycin hydrochloride was already released after 8h of deposition by diffusion controlled processes. STATEMENT OF SIGNIFICANCE The study investigated the development of alternative bone waxes on the basis of a hydroxyapatite (HA) forming calcium phosphate cement (CPC) system. Conventional bone waxes are composed of non-biodegradable beeswax/vaseline mixtures that are often linked to infection, inflammation and hindered osteogenesis. We combined the usage of bioresorbable polymers, the supplementation with hemostatic agents and the incorporation of a mineral component to overcome those drawbacks. Self-setting CPC precursors (tetracalcium phosphate (TTCP), monetite) were embedded in a resorbable matrix of poly(ethylene glycol) (PEG) and supplemented with pregelatinized starch. This formulation was found to be malleable and cohesive underwater. While immersion in an aqueous environment, CPC precursors formed highly porous, nanocrystalline HA via dissolution/precipitation reaction as water penetrated the novel wax formulation and PEG molecules simultaneously dissolved. The bone wax further withstood blood pressure conditions. After hardening, mechanical performance was comparable to that of cancellous bone and we also successfully provided the bone wax with antibacterial properties. In our opinion, the described bone wax formulation outmatches conventional bone waxes, as it circumvents the detriments being associated with the term "bone wax". Our wax has a novel composition and would broaden the application of CPC and besides, the general interest in bone waxes will increase, as they were long considered as a "first-line treatment" to avoid.
Collapse
|
225
|
Ghosh S, Wu V, Pernal S, Uskoković V. Self-Setting Calcium Phosphate Cements with Tunable Antibiotic Release Rates for Advanced Antimicrobial Applications. ACS APPLIED MATERIALS & INTERFACES 2016; 8:7691-708. [PMID: 26958867 PMCID: PMC5002010 DOI: 10.1021/acsami.6b01160] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Osteomyelitis, an infectious disease predominantly tied to poor sanitary conditions in underdeveloped regions of the world, is in need of inexpensive, easily in situ synthesizable and administrable materials for its treatment. The results of this study stem from the attempt to create one such affordable and minimally invasive therapeutic platform in the form of a self-setting, injectable cement with a tunable drug release profile, composed of only nanoparticulate hydroxyapatite, the synthetic version of the bone mineral. Cements comprised two separately synthesized hydroxyapatite powders, one of which, HAP2, was precipitated abruptly, retaining the amorphous nature longer, and the other one of which, HAP1, was precipitated at a slower rate, more rapidly transitioning to the crystalline structure. Cements were made with four different weight ratios of the two hydroxyapatite components: 100/0, 85/15, 50/50, and 0/100 with respect to HAP1 and HAP2. Both the setting and the release rates measured on two different antibiotics, vancomycin and ciprofloxacin, were controlled using the weight ratio of the two hydroxyapatite components. Various inorganic powder properties were formerly used to control drug release, but here we demonstrate for the first time that the kinetics of the mechanism of formation of a solid compound can be controlled to produce tunable drug release profiles. Specifically, it was found that the longer the precursor calcium phosphate component of the cement retains the amorphous nature of the primary precipitate, the more active it was in terms of speeding up the diffusional release of the adsorbed drug. The setting rate was, in contrast, inversely proportional to the release rate and to the content of this active hydroxyapatite component, HAP2. The empirical release profiles were fitted to a set of equations that could be used to tune the release rate to the therapeutic occasion. All of the cements loaded with vancomycin or ciprofloxacin inhibited the growth of Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli and Pseudomonas aeruginosa in both agar diffusion assays and broth dilution tests with intensities either comparable to the antibiotic per se, as in the case of ciprofloxacin, or even larger than the antibiotic alone, as in the case of vancomycin. Interestingly, even the pure cements exhibited an antibacterial effect ranging from moderate to strong, while demonstrating high levels of biocompatibility with osteoclastic RAW264.7 cells and only slightly affecting the viability of the osteoblastic MC3T3-E1 cells, in direct proportion with the amount of the more active hydroxyapatite component in the cements. This antibacterial effect was especially noticeable against Gram-negative bacteria, where the growth inhibition by the cements was comparable to or even stronger than that of the pure antibiotics. The antibiofilm assay against P. aeruginosa biofilms reiterated the antibiotic effectiveness of pure, antibiotic-free cements. That the carrier per se, composed of a nontoxic, easily prepared, bone mineral composite, can exhibit a strong antibacterial effect even in the absence of an antibiotic drug is an insight highly relevant in view of the rising resistance of an array of pathogens to traditional antibiotic therapies and the demands for the timely development of suitable alternatives.
Collapse
Affiliation(s)
- Shreya Ghosh
- Advanced Materials and Nanobiotechnology Laboratory, Department of Bioengineering, University of Illinois, Chicago, Illinois 60607, United States
| | - Victoria Wu
- Advanced Materials and Nanobiotechnology Laboratory, Department of Bioengineering, University of Illinois, Chicago, Illinois 60607, United States
| | - Sebastian Pernal
- Advanced Materials and Nanobiotechnology Laboratory, Department of Bioengineering, University of Illinois, Chicago, Illinois 60607, United States
| | - Vuk Uskoković
- Advanced Materials and Nanobiotechnology Laboratory, Department of Bioengineering, University of Illinois, Chicago, Illinois 60607, United States
| |
Collapse
|
226
|
Li L, Wang R, Li B, Liang W, Pan H, Cui X, Tang J, Li B. Lithium doped calcium phosphate cement maintains physical mechanical properties and promotes osteoblast proliferation and differentiation. J Biomed Mater Res B Appl Biomater 2016; 105:944-952. [PMID: 26856256 DOI: 10.1002/jbm.b.33625] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 12/14/2015] [Accepted: 01/10/2016] [Indexed: 11/06/2022]
Abstract
Calcium phosphate cement (CPC) has been widely used in bone tissue repairing due to its physical mechanical properties and biocompatibility. Addition of trace element to CPC has shown promising evidence to improve the physical properties and biological activities of CPC. Lithium (Li) has effect on osteoblast proliferation and differentiation. In this study, we incorporated Li to CPC and examined the physical properties of Li/CPC and its effect on osteoblast proliferation and differentiation. We found that Li doped CPC maintained similar setting time, pore size distribution, compressive strength, composition, and morphology as CPC without Li. Additionally, Li doped CPC improved osteoblast proliferation and differentiation significantly compared to CPC without Li. To our knowledge, our results, for the first time, show that Li doped CPC has beneficial effect on osteoblast in cell culture while keeps the excellent physical-mechanical properties of CPC. This study will lead to potential application of Li doped CPC in bone tissue engineering. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 944-952, 2017.
Collapse
Affiliation(s)
- Li Li
- The Fourth Affiliated Hospital of Guangxi Medical University/Liu Zhou Work's Hospital, Liuzhou, Guangxi, 545005, China
| | - Renchong Wang
- The Fourth Affiliated Hospital of Guangxi Medical University/Liu Zhou Work's Hospital, Liuzhou, Guangxi, 545005, China
| | - Baichuan Li
- The Fourth Affiliated Hospital of Guangxi Medical University/Liu Zhou Work's Hospital, Liuzhou, Guangxi, 545005, China
| | - Wei Liang
- The Fourth Affiliated Hospital of Guangxi Medical University/Liu Zhou Work's Hospital, Liuzhou, Guangxi, 545005, China
| | - Haobo Pan
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China
| | - Xu Cui
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China
| | - Jingli Tang
- The Fourth Affiliated Hospital of Guangxi Medical University/Liu Zhou Work's Hospital, Liuzhou, Guangxi, 545005, China
| | - Bing Li
- The Fourth Affiliated Hospital of Guangxi Medical University/Liu Zhou Work's Hospital, Liuzhou, Guangxi, 545005, China
| |
Collapse
|
227
|
Injectability, microstructure and release properties of sodium fusidate-loaded apatitic cement as a local drug-delivery system. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:177-184. [DOI: 10.1016/j.msec.2015.09.070] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 08/28/2015] [Accepted: 09/16/2015] [Indexed: 11/22/2022]
|
228
|
Roy A, Jhunjhunwala S, Bayer E, Fedorchak M, Little SR, Kumta PN. Porous calcium phosphate-poly (lactic-co-glycolic) acid composite bone cement: A viable tunable drug delivery system. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:92-101. [DOI: 10.1016/j.msec.2015.09.081] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 09/23/2015] [Indexed: 11/15/2022]
|
229
|
Monitoring of hardening and hygroscopic induced strains in a calcium phosphate bone cement using FBG sensor. J Mech Behav Biomed Mater 2016; 60:195-202. [PMID: 26807773 DOI: 10.1016/j.jmbbm.2015.12.041] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 12/23/2015] [Accepted: 12/25/2015] [Indexed: 11/22/2022]
Abstract
This study initially deals with the investigation of the induced strains during hardening stage of a self-setting calcium phosphate bone cement using fiber-Bragg grating (FBG) optical sensors. A complementary Scanning Electron Microscopy (SEM) investigation was also conducted at different time intervals of the hardening period and its findings were related to the FBG recordings. From the obtained results, it is demonstrated that the FBG response is affected by the microstructural changes taking place when the bone cement is immersed into the hardening liquid media. Subsequently, the FBG sensor was used to monitor the absorption process and hygroscopic response of the hardened and dried biocement when exposed to a liquid/humid environment. From the FBG-based calculated hygric strains as a function of moisture concentration, the coefficient of moisture expansion (CME) of the examined bone cement was obtained, exhibiting two distinct linear regions.
Collapse
|
230
|
Franczak PF, Camargo NHA, Floriano-Silva D, Dalmônico GML, Gemelli E. Hydration study from different calcium phosphate biocements with microstructure and nanostructure. J Biomed Mater Res B Appl Biomater 2016; 105:820-827. [PMID: 26777476 DOI: 10.1002/jbm.b.33617] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 12/07/2015] [Accepted: 12/26/2015] [Indexed: 11/06/2022]
Abstract
Important features of biocements include easy molding and good wettability, hydration, and setting time during its application in biological tissue. Interest in calcium phosphate biocements is directly related to its characteristics of bioactivity, biocompatibility, and crystallographic similarity to bone apatite. This experimental study aimed to understand hydration behavior of calcium phosphate biocements with microstructure and nanostructure, with molar ratios Ca/P = 1.5; 1.6; 1.67; and 1.7 and hydration times of 5 and 30 min. The hydration tests were performed on the same solid/liquid ratio for the four Ca/P compositions. The morphology was observed via scanning electron microscopy and phases were identified with help from X-ray diffraction. The biocements showed similar effects of hydration and gelling for the periods of 5 and 30 min. The results show that these biocements can offer favorable wettability, hydration, and easy molding during the surgical procedure, which could be an innovation in implant fixation and bone tissue repair. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 820-827, 2017.
Collapse
Affiliation(s)
- Priscila F Franczak
- Post-Graduate Program in Materials Science and Engineering-PPGCEM, Universidade do Estado de Santa Catarina-UDESC, Joinville, SC, Brazil
| | - Nelson H A Camargo
- Post-Graduate Program in Materials Science and Engineering-PPGCEM, Universidade do Estado de Santa Catarina-UDESC, Joinville, SC, Brazil
| | - Daiara Floriano-Silva
- Post-Graduate Program in Materials Science and Engineering-PPGCEM, Universidade do Estado de Santa Catarina-UDESC, Joinville, SC, Brazil
| | - Gisele M L Dalmônico
- Post-Graduate Program in Materials Science and Engineering-PPGCEM, Universidade do Estado de Santa Catarina-UDESC, Joinville, SC, Brazil
| | - Enori Gemelli
- Post-Graduate Program in Materials Science and Engineering-PPGCEM, Universidade do Estado de Santa Catarina-UDESC, Joinville, SC, Brazil
| |
Collapse
|
231
|
Canal C, Modic M, Cvelbar U, Ginebra MP. Regulating the antibiotic drug release from β-tricalcium phosphate ceramics by atmospheric plasma surface engineering. Biomater Sci 2016; 4:1454-61. [DOI: 10.1039/c6bm00411c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Atmospheric plasma jet is a new promising tool that leads to the design of controlled drug release from bioceramic matrices.
Collapse
Affiliation(s)
- C. Canal
- Biomaterials
- Biomechanics and Tissue Engineering Group
- Dpt. Materials Science and Metallurgy
- Technical University of Catalonia (UPC)
- 08028 Barcelona
| | - M. Modic
- Department of Surface Engineering and Optoelectronics F-4
- Jožef Stefan Institute
- 1000 Ljubljana
- Slovenia
| | - U. Cvelbar
- Department of Surface Engineering and Optoelectronics F-4
- Jožef Stefan Institute
- 1000 Ljubljana
- Slovenia
| | - M.-P. Ginebra
- Biomaterials
- Biomechanics and Tissue Engineering Group
- Dpt. Materials Science and Metallurgy
- Technical University of Catalonia (UPC)
- 08028 Barcelona
| |
Collapse
|
232
|
Kurtjak M, Vukomanović M, Krajnc A, Kramer L, Turk B, Suvorov D. Designing Ga(iii)-containing hydroxyapatite with antibacterial activity. RSC Adv 2016. [DOI: 10.1039/c6ra23424k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Incorporation of Ga3+ ions into hydroxyapatite under different conditions is studied in detail and its influence on ion-release, antibacterial and cytotoxic properties of the resulting Ga(iii)-containing hydroxyapatites is determined.
Collapse
Affiliation(s)
- Mario Kurtjak
- Advanced Materials Department
- Jožef Stefan Institute
- 1000 Ljubljana
- Slovenia
- Jozef Stefan International Postgraduate School
| | - Marija Vukomanović
- Advanced Materials Department
- Jožef Stefan Institute
- 1000 Ljubljana
- Slovenia
| | - Andraž Krajnc
- Jozef Stefan International Postgraduate School
- 1000 Ljubljana
- Slovenia
- National Institute of Chemistry
- 1001 Ljubljana
| | - Lovro Kramer
- Jozef Stefan International Postgraduate School
- 1000 Ljubljana
- Slovenia
- Biochemistry and Molecular Biology Department
- Jožef Stefan Institute
| | - Boris Turk
- Biochemistry and Molecular Biology Department
- Jožef Stefan Institute
- 1000 Ljubljana
- Slovenia
| | - Danilo Suvorov
- Advanced Materials Department
- Jožef Stefan Institute
- 1000 Ljubljana
- Slovenia
| |
Collapse
|
233
|
Mestres G, Kugiejko K, Pastorino D, Unosson J, Öhman C, Karlsson Ott M, Ginebra MP, Persson C. Changes in the drug release pattern of fresh and set simvastatin-loaded brushite cement. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:88-96. [DOI: 10.1016/j.msec.2015.08.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 06/26/2015] [Accepted: 08/11/2015] [Indexed: 11/30/2022]
|
234
|
Mirković MM, Pašti TDL, Došen AM, Čebela MŽ, Rosić AA, Matović BZ, Babić BM. Adsorption of malathion on mesoporous monetite obtained by mechanochemical treatment of brushite. RSC Adv 2016. [DOI: 10.1039/c5ra27554g] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Synthesis of mesoporous monetite by mechanochemical treatment brushite.
Collapse
Affiliation(s)
- M. M. Mirković
- Vinča Institute of Nuclear Sciences
- University of Belgrade
- 1100 Belgrade
- Serbia
| | | | - A. M. Došen
- Vinča Institute of Nuclear Sciences
- University of Belgrade
- 1100 Belgrade
- Serbia
| | - M. Ž. Čebela
- Vinča Institute of Nuclear Sciences
- University of Belgrade
- 1100 Belgrade
- Serbia
| | - A. A. Rosić
- Faculty of Mining and Geology
- University of Belgrade
- Belgrade
- Serbia
| | - B. Z. Matović
- Vinča Institute of Nuclear Sciences
- University of Belgrade
- 1100 Belgrade
- Serbia
| | - B. M. Babić
- Vinča Institute of Nuclear Sciences
- University of Belgrade
- 1100 Belgrade
- Serbia
| |
Collapse
|
235
|
Sa Y, Gao Y, Wang M, Wang T, Feng X, Wang Z, Wang Y, Jiang T. Bioactive calcium phosphate cement with excellent injectability, mineralization capacity and drug-delivery properties for dental biomimetic reconstruction and minimum intervention therapy. RSC Adv 2016. [DOI: 10.1039/c6ra02488b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
CPC could be used as a promising biomaterial to reconstruct the breached enamel on exposed dentin through a biomimetic and minimally invasive way.
Collapse
Affiliation(s)
- Yue Sa
- Department of Prosthodontics
- Hospital of Stomatology
- Wuhan University
- Wuhan 430079
- PR China
| | - Yixue Gao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education
- School & Hospital of Stomatology
- Wuhan University
- Wuhan 430079
- PR China
| | - Man Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education
- School & Hospital of Stomatology
- Wuhan University
- Wuhan 430079
- PR China
| | - Tianfeng Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education
- School & Hospital of Stomatology
- Wuhan University
- Wuhan 430079
- PR China
| | - Xiaowei Feng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education
- School & Hospital of Stomatology
- Wuhan University
- Wuhan 430079
- PR China
| | - Zhejun Wang
- Department of Prosthodontics
- Hospital of Stomatology
- Wuhan University
- Wuhan 430079
- PR China
| | - Yining Wang
- Department of Prosthodontics
- Hospital of Stomatology
- Wuhan University
- Wuhan 430079
- PR China
| | - Tao Jiang
- Department of Prosthodontics
- Hospital of Stomatology
- Wuhan University
- Wuhan 430079
- PR China
| |
Collapse
|
236
|
Zhu G, Zhao R, Li Y, Tang R. Multifunctional Gd,Ce,Tb co-doped β-tricalcium phosphate porous nanospheres for sustained drug release and bioimaging. J Mater Chem B 2016; 4:3903-3910. [DOI: 10.1039/c5tb02767e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Uniform Gd,Ce,Tb co-doped β-TCP porous nanospheres are prepared by a solvothermal method using (CH3O)3PO as the organic phosphorus source and they demonstrate multifunctional bioapplications.
Collapse
Affiliation(s)
- Genxing Zhu
- Centre for Biomaterials and Biopathways and Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Ruibo Zhao
- Centre for Biomaterials and Biopathways and Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Yaling Li
- Centre for Biomaterials and Biopathways and Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Ruikang Tang
- Centre for Biomaterials and Biopathways and Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
- Qiushi Academy for Advanced Studies
| |
Collapse
|
237
|
Wang P, Song Y, Weir MD, Sun J, Zhao L, Simon CG, Xu HHK. A self-setting iPSMSC-alginate-calcium phosphate paste for bone tissue engineering. Dent Mater 2015; 32:252-63. [PMID: 26743965 DOI: 10.1016/j.dental.2015.11.019] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 09/07/2015] [Accepted: 11/30/2015] [Indexed: 02/05/2023]
Abstract
OBJECTIVES Calcium phosphate cements (CPCs) are promising for dental and craniofacial repairs. The objectives of this study were to: (1) develop an injectable cell delivery system based on encapsulation of induced pluripotent stem cell-derived mesenchymal stem cells (iPSMSCs) in microbeads; (2) develop a novel tissue engineered construct by dispersing iPSMSC-microbeads in CPC to investigate bone regeneration in an animal model for the first time. METHODS iPSMSCs were pre-osteoinduced for 2 weeks (OS-iPSMSCs), or transduced with bone morphogenetic protein-2 (BMP2-iPSMSCs). Cells were encapsulated in fast-degradable alginate microbeads. Microbeads were mixed with CPC paste and filled into cranial defects in nude rats. Four groups were tested: (1) CPC-microbeads without cells (CPC control); (2) CPC-microbeads-iPSMSCs (CPC-iPSMSCs); (3) CPC-microbeads-OS-iPSMSCs (CPC-OS-iPSMSCs); (4) CPC-microbeads-BMP2-iPSMSCs (CPC-BMP2-iPSMSCs). RESULTS Cells maintained good viability inside microbeads after injection. The microbeads were able to release the cells which had more than 10-fold increase in live cell density from 1 to 14 days. The cells exhibited up-regulation of osteogenic markers and deposition of minerals. In vivo, new bone area fraction (mean±SD; n=5) for CPC-iPSMSCs group was (22.5±7.6)%. New bone area fractions were (38.9±18.4)% and (44.7±22.8)% for CPC-OS-iPSMSCs group and CPC-BMP2-iPSMSCs group, respectively, 2-3 times the (15.6±11.2)% in CPC control at 12 weeks (p<0.05). Cell-CPC constructs accelerated scaffold resorption, with CPC-BMP2-iPSMSCs having remaining scaffold material that was 7-fold less than CPC control. SIGNIFICANCE Novel injectable CPC-microbead-cell constructs promoted bone regeneration, with OS-iPSMSCs and BMP2-iPSMSCs having 2-3 fold the new bone of CPC control. Cell delivery accelerated scaffold resorption, with CPC-BMP2-iPSMSC having remaining scaffold material that was 7-fold less than CPC control. Therefore, CPC-microbead-iPSMSC is a promising injectable material for orthopedic, dental and craniofacial bone regenerations.
Collapse
Affiliation(s)
- Ping Wang
- Biomaterials & Tissue Engineering Division, Department of Endodontics, Prosthodontics and Operative Dentistry, University of Maryland Dental School, Baltimore, MD 21201, USA; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yang Song
- Biomaterials & Tissue Engineering Division, Department of Endodontics, Prosthodontics and Operative Dentistry, University of Maryland Dental School, Baltimore, MD 21201, USA
| | - Michael D Weir
- Biomaterials & Tissue Engineering Division, Department of Endodontics, Prosthodontics and Operative Dentistry, University of Maryland Dental School, Baltimore, MD 21201, USA
| | - Jinyu Sun
- Biomaterials & Tissue Engineering Division, Department of Endodontics, Prosthodontics and Operative Dentistry, University of Maryland Dental School, Baltimore, MD 21201, USA
| | - Liang Zhao
- Biomaterials & Tissue Engineering Division, Department of Endodontics, Prosthodontics and Operative Dentistry, University of Maryland Dental School, Baltimore, MD 21201, USA; Department of Orthopaedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China.
| | - Carl G Simon
- Biosystems and Biomaterials Division, National Institute of Standards & Technology, 100 Bureau Drive, Gaithersburg, MD, 20899, USA
| | - Hockin H K Xu
- Biomaterials & Tissue Engineering Division, Department of Endodontics, Prosthodontics and Operative Dentistry, University of Maryland Dental School, Baltimore, MD 21201, USA; Center for Stem Cell Biology and Regenerative Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA; University of Maryland Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Mechanical Engineering Department, University of Maryland Baltimore County, Baltimore County, MD 21250, USA.
| |
Collapse
|
238
|
Novel Method for Loading Microporous Ceramics Bone Grafts by Using a Directional Flow. J Funct Biomater 2015; 6:1085-98. [PMID: 26703749 PMCID: PMC4695912 DOI: 10.3390/jfb6041085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 12/08/2015] [Accepted: 12/16/2015] [Indexed: 11/17/2022] Open
Abstract
The aim of this study was the development of a process for filling the pores of a β-tricalcium phosphate ceramic with interconnected porosity with an alginate hydrogel. For filling of the ceramics, solutions of alginate hydrogel precursors with suitable viscosity were chosen as determined by rheometry. For loading of the porous ceramics with the gel the samples were placed at the flow chamber and sealed with silicone seals. By using a vacuum induced directional flow, the samples were loaded with alginate solutions. The loading success was controlled by ESEM and fluorescence imaging using a fluorescent dye (FITC) for staining of the gel. After loading of the pores, the alginate is transformed into a hydrogel through crosslinking with CaCl₂ solution. The biocompatibility of the obtained composite material was tested with a live dead cell staining by using MG-63 Cells. The loading procedure via vacuum assisted directional flow allowed complete filling of the pores of the ceramics within a few minutes (10 ± 3 min) while loading through simple immersion into the polymer solution or through a conventional vacuum method only gave incomplete filling.
Collapse
|
239
|
Vahabzadeh S, Roy M, Bose S. Effects of Silicon on Osteoclast Cell Mediated Degradation, In Vivo Osteogenesis and Vasculogenesis of Brushite Cement. J Mater Chem B 2015; 3:8973-8982. [PMID: 26855779 PMCID: PMC4739629 DOI: 10.1039/c5tb01081k] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Calcium phosphate cements (CPCs) are being widely used for treating small scale bone defects. Among the various CPCs, brushite (dicalcium phosphate dihydrate, DCPD) cement is widely used due to its superior solubility and ability to form new bone. In the present study, we have studied the physical, mechanical, osteoclast-like-cells differentiation and in vivo osteogenic and vasculogenic properties of silicon (Si) doped brushite cements. Addition of Si did not alter the phase composition of final product and regardless of Si level, all samples included β-tricalcium phosphate (β-TCP) and DCPD. 1.1 wt. % Si addition increased the compressive strength of undoped brushite cement from 4.78±0.21 MPa to 5.53±0.53 MPa, significantly. Cellular activity was studied using receptor activator of nuclear factor κβ ligand (RANKL) supplemented osteoclast-like-cells precursor RAW 264.7 cell. Phenotypic expressions of the cells confirmed successful differentiation of RAW264.7 monocytes to osteoclast-like-cells on undoped and doped brushite cements. An increased activity of osteoclast-like cells was noticed due to Si doping in the brushite cement. An excellent new bone formation was found in all cement compositions, with significant increase in Si doped brushite samples as early as 4 weeks post implantation in rat femoral model. After 4 weeks of implantation, no significant difference was found in blood vessel formation between the undoped and doped cements, however, a significant increase in vasculgenesis was found in 0.8 and 1.1 wt. % Si doped brushite cements after 8 weeks. These results show the influence of Si dopant on physical, mechanical, in vitro osteoclastogenesis and in vivo osteogenic and vasculogenic properties of brushite cements.
Collapse
Affiliation(s)
- Sahar Vahabzadeh
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA
| | - Mangal Roy
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA
| | - Susmita Bose
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA
| |
Collapse
|
240
|
Pastorino D, Canal C, Ginebra MP. Multiple characterization study on porosity and pore structure of calcium phosphate cements. Acta Biomater 2015; 28:205-214. [PMID: 26384703 DOI: 10.1016/j.actbio.2015.09.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 09/08/2015] [Accepted: 09/15/2015] [Indexed: 10/23/2022]
Abstract
Characterization of the intricate pore structure of calcium phosphate cements is a key step to successfully link the structural properties of these synthetic bone grafts with their most relevant properties, such as in vitro or in vivo behaviour, drug loading and release properties, or degradation over time. This is a challenging task due to the wide range of pore sizes in calcium phosphate cements, compared to most other ceramic biomaterials. This work provides a critical assessment of three different techniques based on different physical phenomena, namely mercury intrusion porosimetry (MIP), Nitrogen sorption, and thermoporometry (TPM) for the detailed characterization of four calcium phosphate cements with different textural properties in terms of total porosity, pore size distribution (PSD), and pore entrance size distribution (PESD). MIP covers a much wider size range than TPM and Nitrogen sorption, offering more comprehensive information at the micrometer level. TPM, and especially Nitrogen sorption, are non-destructive techniques and, although they cover a limited size range, provide complementary information regarding pore structure associated with crystal shape at the nanoscale, recording both PSD and PESD in a single experiment. MIP tended to register smaller sizes, especially at low L/P ratios, due to the network effect, which has a strong influence on the outcome of this technique. STATEMENT OF SIGNIFICANCE The detailed characterisation of the porosity of calcium phosphate cements is of paramount importance, since it is a key parameter influencing some of the most relevant features, like mechanical properties, degradation rate or drug loading and release kinetics. However, this is a challenging task because, once hardened, calcium phosphate cements present an intricate morphology, consisting of a network of precipitated crystals, which generate a high intrinsic micro/nano porosity, with pore sizes covering six orders of magnitude. This work provides for the first time a critical assessment of the advantages and limitations of three different techniques, namely mercury intrusion porosimetry, Nitrogen sorption and Thermoporometry, for the characterisation of the porosity of four calcium phosphate cements with different textural properties.
Collapse
|
241
|
Feng T, Pi B, Li B, Jiang L, Wang YM, Zhu XS, Yang HL. N -Acetyl cysteine (NAC)-mediated reinforcement of alpha-tricalcium phosphate/silk fibroin (α-TCP/SF) cement. Colloids Surf B Biointerfaces 2015; 136:892-9. [DOI: 10.1016/j.colsurfb.2015.10.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Revised: 10/12/2015] [Accepted: 10/15/2015] [Indexed: 12/22/2022]
|
242
|
Sheikh Z, Abdallah MN, Hanafi AA, Misbahuddin S, Rashid H, Glogauer M. Mechanisms of in Vivo Degradation and Resorption of Calcium Phosphate Based Biomaterials. MATERIALS (BASEL, SWITZERLAND) 2015; 8:7913-7925. [PMID: 28793687 PMCID: PMC5458904 DOI: 10.3390/ma8115430] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 11/09/2015] [Accepted: 11/13/2015] [Indexed: 12/21/2022]
Abstract
Calcium phosphate ceramic materials are extensively used for bone replacement and regeneration in orthopedic, dental, and maxillofacial surgical applications. In order for these biomaterials to work effectively it is imperative that they undergo the process of degradation and resorption in vivo. This allows for the space to be created for the new bone tissue to form and infiltrate within the implanted graft material. Several factors affect the biodegradation and resorption of calcium phosphate materials after implantation. Various cell types are involved in the degradation process by phagocytic mechanisms (monocytes/macrophages, fibroblasts, osteoblasts) or via an acidic mechanism to reduce the micro-environmental pH which results in demineralization of the cement matrix and resorption via osteoclasts. These cells exert their degradation effects directly or indirectly through the cytokine growth factor secretion and their sensitivity and response to these biomolecules. This article discusses the mechanisms of calcium phosphate material degradation in vivo.
Collapse
Affiliation(s)
- Zeeshan Sheikh
- Faculty of Dentistry, University of Toronto, Toronto, ON M5S 3E2, Canada.
| | | | | | - Syed Misbahuddin
- Faculty of Dentistry, Department of Dental Public Health, University of Toronto, Toronto, ON M5S 3E2, Canada.
| | - Haroon Rashid
- College of Dentistry, Division of Prosthodontics, Ziauddin University, Karachi 75530, Pakistan.
| | - Michael Glogauer
- Matrix Dynamics Group, Faculty of Dentistry, University of Toronto, Toronto, ON M5S 3E2, Canada.
| |
Collapse
|
243
|
Akkineni AR, Luo Y, Schumacher M, Nies B, Lode A, Gelinsky M. 3D plotting of growth factor loaded calcium phosphate cement scaffolds. Acta Biomater 2015; 27:264-274. [PMID: 26318366 DOI: 10.1016/j.actbio.2015.08.036] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 08/24/2015] [Accepted: 08/25/2015] [Indexed: 02/02/2023]
Abstract
Additive manufacturing allows to widely control the geometrical features of implants. Recently, we described the fabrication of calcium phosphate cement (CPC) scaffolds by 3D plotting of a storable CPC paste based on water-immiscible carrier liquid. Plotting and hardening is conducted under mild conditions allowing the (precise and local) integration of biological components. In this study, we have developed a procedure for efficient loading of growth factors in the CPC scaffolds during plotting and demonstrated the feasibility of this approach. Bovine serum albumin (BSA) or vascular endothelial growth factor (VEGF), used as model proteins, were encapsulated in chitosan/dextran sulphate microparticles which could be easily mixed into the CPC paste in freeze-dried state. In order to prevent leaching of the proteins during cement setting, usually carried out by immersion in aqueous solutions, the plotted scaffolds were aged in water-saturated atmosphere (humidity). Setting in humidity avoided early loss of loaded proteins but provided sufficient amount of water to allow cement setting, as indicated by XRD analysis and mechanical testing in comparison to scaffolds set in water. Moreover, humidity-set scaffolds were characterised by altered, even improved properties: no swelling or crack formation was observed and accordingly, surface topography, total porosity and compressive modulus of the humidity-set scaffolds differed from those of the water-set counterparts. Direct cultivation of mesenchymal stem cells on the humidity-set scaffolds over 21days revealed their cytocompatibility. Maintenance of the bioactivity of VEGF during the fabrication procedure was proven in indirect and direct culture experiments with endothelial cells. STATEMENT OF SIGNIFICANCE Additive manufacturing techniques allow the fabrication of implants with defined architecture (inner pore structure and outer shape). Especially printing technologies conducted under mild conditions allow additionally the (spatially controlled) integration of biological components such as drugs or growth factors. That enables the generation of individualized implants which can better meet the requirements of a patient and of tissue engineering constructs. To our knowledge, simultaneous printing of biological components was up to now only described for hydrogel/biopolymer-based materials which suffer from poor mechanical properties. In contrast, we have developed a procedure (based on 3D plotting of a calcium phosphate cement paste) for the fabrication of designed and growth factor loaded calcium-phosphate-based scaffolds applicable for bone regeneration.
Collapse
|
244
|
Agarwal R, García AJ. Biomaterial strategies for engineering implants for enhanced osseointegration and bone repair. Adv Drug Deliv Rev 2015; 94:53-62. [PMID: 25861724 DOI: 10.1016/j.addr.2015.03.013] [Citation(s) in RCA: 409] [Impact Index Per Article: 45.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 02/08/2015] [Accepted: 03/17/2015] [Indexed: 12/11/2022]
Abstract
Bone tissue has a remarkable ability to regenerate and heal itself. However, large bone defects and complex fractures still present a significant challenge to the medical community. Current treatments center on metal implants for structural and mechanical support and auto- or allo-grafts to substitute long bone defects. Metal implants are associated with several complications such as implant loosening and infections. Bone grafts suffer from donor site morbidity, reduced bioactivity, and risk of pathogen transmission. Surgical implants can be modified to provide vital biological cues, growth factors and cells in order to improve osseointegration and repair of bone defects. Here we review strategies and technologies to engineer metal surfaces to promote osseointegration with the host tissue. We also discuss strategies for modifying implants for cell adhesion and bone growth via integrin signaling and growth factor and cytokine delivery for bone defect repair.
Collapse
|
245
|
Santos-Ferreira I, Bettencourt A, Almeida AJ. Nanoparticulate platforms for targeting bone infections: meeting a major therapeutic challenge. Nanomedicine (Lond) 2015; 10:3131-45. [PMID: 26446355 DOI: 10.2217/nnm.15.134] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Bone infections are devastating complications in orthopedics due to biofilm formation. Treatment requires high antibiotic doses, which may lead to systemic toxicity thus limiting the drug therapeutic effectiveness. In this context, nanoparticles are well-known controlled release drug carriers that are able to modulate release rate, versatile in terms of administration routes and may be used as local delivery systems. Regarding bone infections, although nanoparticles are a promising strategy for overcoming biofilm tolerance, there are clearly technical, safety, regulatory and clinical challenges that need to be overcome before such nanomedicines may be translated into clinical use. In this paper, we present a critical overview on the high expectations against the real potential of the nanotechnological approaches to bone infection treatment.
Collapse
Affiliation(s)
- Inês Santos-Ferreira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Alameda da Universidade, 1649-004 Lisboa, Portugal
| | - Ana Bettencourt
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Alameda da Universidade, 1649-004 Lisboa, Portugal
| | - António J Almeida
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Alameda da Universidade, 1649-004 Lisboa, Portugal
| |
Collapse
|
246
|
Alexopoulou M, Mystiridou E, Mouzakis D, Zaoutsos S, Fatouros DG, Bouropoulos N. Preparation, characterization andin vitroassessment of ibuprofen loaded calcium phosphate/gypsum bone cements. CRYSTAL RESEARCH AND TECHNOLOGY 2015. [DOI: 10.1002/crat.201500143] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Maria Alexopoulou
- Department of Materials Science; University of Patras; GR-26504 Patras Greece
| | | | - Dionysios Mouzakis
- Technological Educational Institute of Larisa; Department of Mechanical Engineering, T.E.I. of Larissa; GR-41110 Larissa Greece
| | - Stefanos Zaoutsos
- Technological Educational Institute of Larisa; Department of Mechanical Engineering, T.E.I. of Larissa; GR-41110 Larissa Greece
| | - Dimitrios G. Fatouros
- Laboratory of Pharmaceutical Technology; Department of Pharmaceutical Sciences, Aristotle University of Thessaloniki; GR-54124 Thessaloniki Greece
| | - Nikolaos Bouropoulos
- Department of Materials Science; University of Patras; GR-26504 Patras Greece
- Institute of Chemical Engineering and High Temperature Chemical Processes FORTH; P.O.Box 1414 GR-26504 Patras Greece
| |
Collapse
|
247
|
Design and properties of novel gallium-doped injectable apatitic cements. Acta Biomater 2015; 24:322-32. [PMID: 26074157 DOI: 10.1016/j.actbio.2015.05.027] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 05/06/2015] [Accepted: 05/22/2015] [Indexed: 11/23/2022]
Abstract
Different possible options were investigated to combine an apatitic calcium phosphate cement with gallium ions, known as bone resorption inhibitors. Gallium can be either chemisorbed onto calcium-deficient apatite or inserted in the structure of β-tricalcium phosphate, and addition of these gallium-doped components into the cement formulation did not significantly affect the main properties of the biomaterial, in terms of injectability and setting time. Under in vitro conditions, the amount of gallium released from the resulting cement pellets was found to be low, but increased in the presence of osteoclastic cells. When implanted in rabbit bone critical defects, a remodeling process of the gallium-doped implant started and an excellent bone interface was observed. STATEMENT OF SIGNIFICANCE The integration of drugs and materials is a growing force in the medical industry. The incorporation of pharmaceutical products not only promises to expand the therapeutic scope of biomaterials technology but to design a new generation of true combination products whose therapeutic value stem equally from both the structural attributes of the material and the intrinsic therapy of the drug. In this context, for the first time an injectable calcium phosphate cement containing gallium was designed with properties suitable for practical application as a local delivery system, implantable by minimally invasive surgery. This important and original paper reports the design and in-depth chemical and physical characterization of this groundbreaking technology.
Collapse
|
248
|
Cuzmar E, Perez RA, Manzanares MC, Ginebra MP, Franch J. In Vivo Osteogenic Potential of Biomimetic Hydroxyapatite/Collagen Microspheres: Comparison with Injectable Cement Pastes. PLoS One 2015; 10:e0131188. [PMID: 26132468 PMCID: PMC4488499 DOI: 10.1371/journal.pone.0131188] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 05/30/2015] [Indexed: 01/25/2023] Open
Abstract
The osteogenic capacity of biomimetic calcium deficient hydroxyapatite microspheres with and without collagen obtained by emulsification of a calcium phosphate cement paste has been evaluated in an in vivo model, and compared with an injectable calcium phosphate cement with the same composition. The materials were implanted into a 5 mm defect in the femur condyle of rabbits, and bone formation was assessed after 1 and 3 months. The histological analysis revealed that the cements presented cellular activity only in the margins of the material, whereas each one of the individual microspheres was covered with osteogenic cells. Consequently, bone ingrowth was enhanced by the microspheres, with a tenfold increase compared to the cement, which was associated to the higher accessibility for the cells provided by the macroporous network between the microspheres, and the larger surface area available for osteoconduction. No significant differences were found in terms of bone formation associated with the presence of collagen in the materials, although a more extensive erosion of the collagen-containing microspheres was observed.
Collapse
Affiliation(s)
- Erika Cuzmar
- Medicine and Animal Surgery Department, Autonomous University of Barcelona (UAB), V Building, 08193 Bellaterra, Spain
- Veterinarian Clinical Science Institute, Universidad Austral de Chile. Fundo Teja Norte, Valdivia, Chile
| | - Roman A. Perez
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgy, Technical University of Catalonia (UPC), Avda. Diagonal 647, E-08028 Barcelona, Spain
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 330–714, Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 330–714, Republic of Korea
| | - Maria-Cristina Manzanares
- Human Anatomy and Embryology Unit, Pathology and Experimental Therapeutics Department, University of Barcelona (UB), C/ Feixa Llarga s/n, 08907, L’Hospitalet de Llobregat, Spain
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgy, Technical University of Catalonia (UPC), Avda. Diagonal 647, E-08028 Barcelona, Spain
- * E-mail:
| | - Jordi Franch
- Medicine and Animal Surgery Department, Autonomous University of Barcelona (UAB), V Building, 08193 Bellaterra, Spain
| |
Collapse
|
249
|
Striegler C, Schumacher M, Effenberg C, Müller M, Seckinger A, Schnettler R, Voit B, Hose D, Gelinsky M, Appelhans D. Dendritic Glycopolymer as Drug Delivery System for Proteasome Inhibitor Bortezomib in a Calcium Phosphate Bone Cement: First Steps Toward a Local Therapy of Osteolytic Bone Lesions. Macromol Biosci 2015; 15:1283-95. [PMID: 26018141 DOI: 10.1002/mabi.201500085] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 04/23/2015] [Indexed: 12/29/2022]
Abstract
Establishment of drug delivery system (DDS) in bone substitute materials for local treatment of bone defects still requires ambitious solutions for a retarded drug release. We present two novel DDS, a weakly cationic dendritic glycopolymer and a cationic polyelectrolyte complex, composed of dendritic glycopolymer and cellulose sulfate, for the proteasome inhibitor bortezomib. Both DDS are able to induce short-term retarded release of bortezomib from calcium phosphate bone cement in comparison to a burst-release of the drug from bone cement alone. Different release parameters have been evaluated to get a first insight into the release mechanism from bone cements. In addition, biocompatibility of the calcium phosphate cement, modified with the new DDS was investigated using human mesenchymal stromal cells.
Collapse
Affiliation(s)
- Christin Striegler
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany.,Organic Chemistry of Polymers, Technische Universität Dresden, 01062 Dresden, Germany
| | - Matthias Schumacher
- Centre for Translational Bone, Joint and Soft Tissue Research, Medical Faculty and University Hospital, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
| | - Christiane Effenberg
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Martin Müller
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Anja Seckinger
- Department of Internal Medicine V, Section Multiple Myeloma, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Reinhard Schnettler
- Laboratory for Experimental Trauma Surgery, Justus-Liebig-University Gießen, Schubertstr. 81, 35392 Giessen, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany.,Organic Chemistry of Polymers, Technische Universität Dresden, 01062 Dresden, Germany
| | - Dirk Hose
- Department of Internal Medicine V, Section Multiple Myeloma, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany.
| | - Michael Gelinsky
- Centre for Translational Bone, Joint and Soft Tissue Research, Medical Faculty and University Hospital, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany.
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany.
| |
Collapse
|
250
|
Sharma S, Verma A, Teja BV, Pandey G, Mittapelly N, Trivedi R, Mishra PR. An insight into functionalized calcium based inorganic nanomaterials in biomedicine: Trends and transitions. Colloids Surf B Biointerfaces 2015; 133:120-39. [PMID: 26094145 DOI: 10.1016/j.colsurfb.2015.05.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 05/06/2015] [Accepted: 05/08/2015] [Indexed: 12/28/2022]
Abstract
Over the recent years the use of biocompatible and biodegradable nanoparticles in biomedicine has become a significant priority. Calcium based ceramic nanoparticles like calcium phosphate (CaP) and calcium carbonate (CaCO3) are therefore considered as attractive carriers as they are naturally present in human body with nanosize range. Their application in tissue engineering and localized controlled delivery of bioactives for bones and teeth is well established now, but recently their use has increased significantly as carrier of bioactives through other routes also. These delivery systems have become most potential alternatives to other commonly used delivery system because of their cost effectiveness, biodegradability, chemical stability, controlled and stimuli responsive behaviour. This review comprehensively covers their characteristic features, method of preparation and applications but the thrust is to focus their recent development, functionalization and use in systemic delivery. On the same platform mineralization of other nanoparticulate delivery system which has widened their application drug delivery will be discussed. The emphasis has been given on their pH dependent properties which make them excellent carriers for tumour targeting and intracellular delivery. Finally this review also attempts to discuss their drawback which limits their clinical utility.
Collapse
Affiliation(s)
- Shweta Sharma
- Division of Pharmaceutics, CSIR-Central Drug Research Institute, B 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, U.P., India
| | - Ashwni Verma
- Division of Pharmaceutics, CSIR-Central Drug Research Institute, B 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, U.P., India
| | - B Venkatesh Teja
- Division of Pharmaceutics, CSIR-Central Drug Research Institute, B 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, U.P., India
| | - Gitu Pandey
- Division of Pharmaceutics, CSIR-Central Drug Research Institute, B 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, U.P., India
| | - Naresh Mittapelly
- Division of Pharmaceutics, CSIR-Central Drug Research Institute, B 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, U.P., India
| | - Ritu Trivedi
- Division of Endocrinology, CSIR-Central Drug Research Institute, B 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, U.P., India
| | - P R Mishra
- Division of Pharmaceutics, CSIR-Central Drug Research Institute, B 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, U.P., India.
| |
Collapse
|