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Sambri A, Cevolani L, Passarino V, Bortoli M, Parisi SC, Fiore M, Campanacci L, Staals E, Donati DM, De Paolis M. Mid-Term Results of Single-Stage Surgery for Patients with Chronic Osteomyelitis Using Antibiotic-Loaded Resorbable PerOssal ® Beads. Microorganisms 2023; 11:1623. [PMID: 37512796 PMCID: PMC10385580 DOI: 10.3390/microorganisms11071623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 07/30/2023] Open
Abstract
This retrospective study reports on the treatment of chronic osteomyelitis with local debridement combined with PerOssal®. The diagnosis of chronic osteomyelitis was confirmed in all cases and classified according to the Cierny-Mader (C-M) classification. The primary outcome was the eradication of infection at a minimum of one year after surgery. A total of 93 patients (median age: 40 years) were included. The most represented sites were the femur (24, 25.8%) and tibia (52, 55.9%). Twenty-six patients (28.0%) had significant local or systemic comorbidities (C-M Class B hosts). According to anatomic type, 31 cases were type I, 13 type II, 21 type III and 28 type IV. Vancomycin was added to PerOssal® in most cases (80, 86.0%). In 24 (25.8%) cases, Vancomycin and Rifampicin were combined. In 32 (34.4%) cases, intraoperative cultures were negative. Staphylococcus aureus was isolated in 39 (63.9%) patients, and Gram-negative bacteria were isolated in 12 cases. The median follow-up was 21 months (range 12-84). A total of 21 (22.6%) patients developed an infection recurrence (IR) after a median follow-up of 11 months (range: 1-47). PerOssal® holds several practical advantages compared to other bone void fillers. Thus, due to its good biocompatibility and sufficient antibiotic release, it represents a viable adjuvant treatment in chronic osteomyelitis.
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Affiliation(s)
- Andrea Sambri
- Orthopedic and Traumatology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Luca Cevolani
- Orthopedic Oncology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Valentina Passarino
- Orthopedic and Traumatology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Marta Bortoli
- Orthopedic and Traumatology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Stefania Claudia Parisi
- Orthopedic and Traumatology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Michele Fiore
- Orthopedic and Traumatology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Laura Campanacci
- Orthopedic Oncology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Eric Staals
- Orthopedic Oncology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Davide Maria Donati
- Orthopedic Oncology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Massimiliano De Paolis
- Orthopedic and Traumatology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
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2
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Stürznickel J, Behler-Janbeck F, Baranowsky A, Schmidt T, Schwinge D, John C, Lohse AW, Schramm C, Heeren J, Schinke T, Amling M. Increased concentrations of conjugated bile acids are associated with osteoporosis in PSC patients. Sci Rep 2022; 12:16491. [PMID: 36192408 PMCID: PMC9530206 DOI: 10.1038/s41598-022-20351-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 09/12/2022] [Indexed: 11/17/2022] Open
Abstract
Primary sclerosing cholangitis (PSC) is an idiopathic cholestatic liver disease characterized by chronic inflammation and progressive fibrosis of intra- and extrahepatic bile ducts. Osteoporosis is a frequent comorbidity in PSC, and we could previously demonstrate that IL17-dependent activation of bone resorption is the predominant driver of bone loss in PSC. Since we additionally observed an unexpected heterogeneity of bone mineral density in our cohort of 238 PSC patients, the present study focused on a comparative analysis of affected individuals with diagnosed osteoporosis (PSCOPO, n = 10) or high bone mass (PSCHBM, n = 7). The two groups were not distinguishable by various baseline characteristics, including liver fibrosis or serum parameters for hepatic function. In contrast, quantification of serum bile acid concentrations identified significant increases in the PSCOPO group, including glycoursodeoxycholic acid (GUDCA), an exogenous bile acid administered to both patient groups. Although cell culture experiments did not support the hypothesis that an increase in circulating bile levels is a primary cause of PSC-associated osteoporosis, the remarkable differences of endogenous bile acids and GUDCA in the serum of PSCOPO patients strongly suggest a yet unknown impairment of biliary metabolism and/or hepatic bile acid clearance in this patient subgroup, which is independent of liver fibrosis.
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Affiliation(s)
- Julian Stürznickel
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestraße 59, 22529, Hamburg, Germany.,Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Friederike Behler-Janbeck
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Anke Baranowsky
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Tobias Schmidt
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestraße 59, 22529, Hamburg, Germany
| | - Dorothee Schwinge
- I. Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg Center for Translational Immunology (HCTI), University Medical Centre Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Clara John
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Ansgar W Lohse
- I. Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg Center for Translational Immunology (HCTI), University Medical Centre Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Christoph Schramm
- I. Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg Center for Translational Immunology (HCTI), University Medical Centre Hamburg-Eppendorf, 20246, Hamburg, Germany.,Martin Zeitz Centre for Rare Diseases, University Medical Centre Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Joerg Heeren
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Thorsten Schinke
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestraße 59, 22529, Hamburg, Germany
| | - Michael Amling
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestraße 59, 22529, Hamburg, Germany.
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3
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Ahmed Omar N, Amédée J, Letourneur D, Fricain JC, Fenelon M. Recent Advances of Pullulan and/or Dextran-Based Materials for Bone Tissue Engineering Strategies in Preclinical Studies: A Systematic Review. Front Bioeng Biotechnol 2022; 10:889481. [PMID: 35845411 PMCID: PMC9280711 DOI: 10.3389/fbioe.2022.889481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 05/23/2022] [Indexed: 12/09/2022] Open
Abstract
Bone tissue engineering (BTE) strategies are increasingly investigated to overcome the limitations of currently used bone substitutes and to improve the bone regeneration process. Among the natural polymers used for tissue engineering, dextran and pullulan appear as natural hydrophilic polysaccharides that became promising biomaterials for BTE. This systematic review aimed to present the different published applications of pullulan and dextran-based biomaterials for BTE. An electronic search in Pubmed, Scopus, and Web of Science databases was conducted. Selection of articles was performed following PRISMA guidelines. This systematic review led to the inclusion of 28 articles on the use of pullulan and/or dextran-based biomaterials to promote bone regeneration in preclinical models. Sixteen studies focused on dextran-based materials for bone regeneration, six on pullulan substitutes and six on the combination of pullulan and dextran. Several strategies have been developed to provide bone regeneration capacity, mainly through their fabrication processes (functionalization methods, cross-linking process), or the addition of bioactive elements. We have summarized here the strategies employed to use the polysaccharide scaffolds (fabrication process, composition, application usages, route of administration), and we highlighted their relevance and limitations for BTE applications.
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Affiliation(s)
| | - Joëlle Amédée
- Université de Bordeaux, INSERM U1026, BIOTIS, Bordeaux, France
| | - Didier Letourneur
- SILTISS, Saint-Viance, France
- Université Paris Cité, Université Sorbonne Paris Nord, INSERM U1148, LVTS, X Bichat Hospital, Université de Paris, Paris, France
| | - Jean-Christophe Fricain
- Université de Bordeaux, INSERM U1026, BIOTIS, Bordeaux, France
- Service de Chirurgie Orale, CHU Bordeaux, Bordeaux, France
| | - Mathilde Fenelon
- Université de Bordeaux, INSERM U1026, BIOTIS, Bordeaux, France
- Service de Chirurgie Orale, CHU Bordeaux, Bordeaux, France
- *Correspondence: Mathilde Fenelon,
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Fujioka‐Kobayashi M, Miyamoto Y, Ishikawa K, Satomi T, Schaller B. Osteoclast behaviors on the surface of deproteinized bovine bone mineral and carbonate apatite substitutes in vitro. J Biomed Mater Res A 2022; 110:1524-1532. [DOI: 10.1002/jbm.a.37392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 03/07/2022] [Accepted: 03/30/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Masako Fujioka‐Kobayashi
- Department of Cranio‐Maxillofacial Surgery, Inselspital, Bern University Hospital University of Bern Bern Switzerland
- Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Tokyo The Nippon Dental University Tokyo Japan
| | - Youji Miyamoto
- Department of Oral Surgery, Institute of Biomedical Sciences Tokushima University Graduate School Tokushima Japan
| | - Kunio Ishikawa
- Department of Biomaterials, Faculty of Dental Science Kyushu University Fukuoka Japan
| | - Takafumi Satomi
- Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Tokyo The Nippon Dental University Tokyo Japan
| | - Benoit Schaller
- Department of Cranio‐Maxillofacial Surgery, Inselspital, Bern University Hospital University of Bern Bern Switzerland
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5
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de Melo Pereira D, Schumacher M, Habibovic P. Cobalt-containing calcium phosphate induces resorption of biomineralized collagen by human osteoclasts. Biomater Res 2021; 25:6. [PMID: 33743840 PMCID: PMC7981861 DOI: 10.1186/s40824-021-00209-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 03/10/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Biomineralized collagen, consisting of fibrillar type-I collagen with embedded hydroxyapatite mineral, is a bone-mimicking material with potential application as a bone graft substitute. Despite the chemical and structural similarity with bone extracellular matrix, no evidence exists so far that biomineralized collagen can be resorbed by osteoclasts. The aim of the current study was to induce resorption of biomineralized collagen by osteoclasts by a two-fold modification: increasing the calcium phosphate content and introducing cobalt ions (Co2+), which have been previously shown to stimulate resorptive activity of osteoclasts. METHODS To this end, we produced biomineralized collagen membranes and coated them with a cobalt-containing calcium phosphate (CoCaP). Human osteoclasts, derived from CD14+ monocytes from peripheral blood, were differentiated directly on the membranes. Upon fluorescent staining of nuclei, F-actin and tartrate-resistant alkaline phosphatase, the cells were analyzed by laser confocal microscopy. Their resorption capacity was assessed by scanning electron microscopy (SEM), as well as indirectly quantified by measuring the release of calcium ions into cell culture medium. RESULTS The CoCaP coating increased the mineral content of the membranes by 4 wt.% and their elastic modulus from 1 to 10 MPa. The coated membranes showed a sustained Co2+ release in water of about 7 nM per 2 days. In contrast to uncoated membranes, on CoCaP-coated biomineralized collagen membranes, osteoclasts sporadically formed actin rings, and induced formation of resorption lacunae, as observed by SEM and confirmed by increase in Ca2+ concentration in cell culture medium. The effect of the CoCaP layer on osteoclast function is thought to be mainly caused by the increase of membrane stiffness, although the effect of Co2+, which was released in very low amounts, cannot be fully excluded. CONCLUSIONS This work shows the potential of this relatively simple approach to induce osteoclast resorption of biomineralized collagen, although the extent of osteoclast resorption was limited, and the method needs further optimization. Moreover, the coating method is suitable for incorporating bioactive ions of interest into biomineralized collagen, which is typically not possible using the common biomineralization methods, such as polymer-induced liquid precursor method.
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Affiliation(s)
- Daniel de Melo Pereira
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, Netherlands
| | - Matthias Schumacher
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, Netherlands
| | - Pamela Habibovic
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, Netherlands.
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Heinemann C, Adam J, Kruppke B, Hintze V, Wiesmann HP, Hanke T. How to Get Them off?-Assessment of Innovative Techniques for Generation and Detachment of Mature Osteoclasts for Biomaterial Resorption Studies. Int J Mol Sci 2021; 22:ijms22031329. [PMID: 33572748 PMCID: PMC7865995 DOI: 10.3390/ijms22031329] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/22/2021] [Accepted: 01/24/2021] [Indexed: 12/14/2022] Open
Abstract
The fusion process of mononuclear monocytes into multinuclear osteoclasts in vitro is an essential process for the study of osteoclastic resorption of biomaterials. Thereby biomaterials offer many influencing factors such as sample shape, material composition, and surface topography, which can have a decisive influence on the fusion and thus the entire investigation. For the specific investigation of resorption, it can therefore be advantageous to skip the fusion on samples and use mature, predifferentiated osteoclasts directly. However, most conventional detachment methods (cell scraper, accutase), lead to a poor survival rate of osteoclasts or to a loss of function of the cells after their reseeding. In the present study different conventional and novel methods of detachment in combination with different culture surfaces were investigated to obtain optimal osteoclast differentiation, yield, and vitality rates without loss of function. The innovative method-using thermoresponsive surfaces for cultivation and detachment-was found to be best suited. This is in particular due to its ability to maintain osteoclast activity, as proven by TRAP 5b-, CTSK-activity and resorption pits on dentin discs and decellularized osteoblast-derived matrix plates. In conclusion, it is shown, that osteoclasts can be predifferentiated on cell culture dishes and transferred to a reference biomaterial under preservation of osteoclastic resorption activity, providing biomaterial researchers with a novel tool for material characterization.
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7
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Böker KO, Richter K, Jäckle K, Taheri S, Grunwald I, Borcherding K, von Byern J, Hartwig A, Wildemann B, Schilling AF, Lehmann W. Current State of Bone Adhesives-Necessities and Hurdles. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E3975. [PMID: 31801225 PMCID: PMC6926991 DOI: 10.3390/ma12233975] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/20/2019] [Accepted: 11/27/2019] [Indexed: 02/06/2023]
Abstract
The vision of gluing two bone fragments with biodegradable and biocompatible adhesives remains highly fascinating and attractive to orthopedic surgeons. Possibly shorter operation times, better stabilization, lower infection rates, and unnecessary removal make this approach very appealing. After 30 years of research in this field, the first adhesive systems are now appearing in scientific reports that may fulfill the comprehensive requirements of bioadhesives for bone. For a successful introduction into clinical application, special requirements of the musculoskeletal system, challenges in the production of a bone adhesive, as well as regulatory hurdles still need to be overcome. In this article, we will give an overview of existing synthetic polymers, biomimetic, and bio-based adhesive approaches, review the regulatory hurdles they face, and discuss perspectives of how bone adhesives could be efficiently introduced into clinical application, including legal regulations.
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Affiliation(s)
- Kai O. Böker
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Goettingen, Robert Koch Straße 40, 37075 Göttingen, Germany; (K.J.); (S.T.); (A.F.S.); (W.L.)
| | - Katharina Richter
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials (IFAM), Wiener Straße 12, 28359 Bremen, Germany; (K.R.); (K.B.); (A.H.)
| | - Katharina Jäckle
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Goettingen, Robert Koch Straße 40, 37075 Göttingen, Germany; (K.J.); (S.T.); (A.F.S.); (W.L.)
| | - Shahed Taheri
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Goettingen, Robert Koch Straße 40, 37075 Göttingen, Germany; (K.J.); (S.T.); (A.F.S.); (W.L.)
| | - Ingo Grunwald
- Industrial and Environmental Biology, Hochschule Bremen—City University of Applied Sciences, Neustadtswall 30, 28199 Bremen, Germany;
| | - Kai Borcherding
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials (IFAM), Wiener Straße 12, 28359 Bremen, Germany; (K.R.); (K.B.); (A.H.)
| | - Janek von Byern
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration, Donaueschingenstrasse 13, 1200 Vienna, Austria;
- Faculty of Life Science, University of Vienna, Core Facility Cell Imaging and Ultrastructure Research, Althanstrasse 14, 1090 Vienna, Austria
| | - Andreas Hartwig
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials (IFAM), Wiener Straße 12, 28359 Bremen, Germany; (K.R.); (K.B.); (A.H.)
- Department 2 Biology/Chemistry, University of Bremen, Leobener Straße 3, 28359 Bremen, Germany
| | - Britt Wildemann
- Experimental Trauma Surgery, University Hospital Jena, 07747 Jena, Germany;
| | - Arndt F. Schilling
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Goettingen, Robert Koch Straße 40, 37075 Göttingen, Germany; (K.J.); (S.T.); (A.F.S.); (W.L.)
| | - Wolfgang Lehmann
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Goettingen, Robert Koch Straße 40, 37075 Göttingen, Germany; (K.J.); (S.T.); (A.F.S.); (W.L.)
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Wang X, Batubara I, Yamauchi K, Mitsunaga T. Identification and structure-activity relationship (SAR) of chemical constituents from Daemonorops draco (Willd.) Blume and selected commercial flavonoids on anti-osteoclastogenesis activity. Fitoterapia 2019; 138:104280. [PMID: 31376421 DOI: 10.1016/j.fitote.2019.104280] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 07/30/2019] [Accepted: 07/30/2019] [Indexed: 01/28/2023]
Abstract
Osteoclastogenesis-related bone diseases including osteoporosis, rheumatoid arthritis, Paget's disease and periodontitis are worldwide occurred and cause severe health problems including bone fracture and bone cancer. However, A few studies have shown that Daemonorops draco (Willd.) Blume may decrease bone destruction and relieve bone cancer pain. In this research, we isolated and purified four known and two novel compounds from D. draco and investigated their anti-osteoclastogenesis activity using RAW264.7 cells. Among them, com.1 exhibited the most effective inhibitory activity on osteoclastogenesis with 78% inhibition at 10 μM and identified to be a novel natural flavan; and com.2 displayed a bit slighter inhibition (50% at 10 μM), indicating that the methylation of 7-hydroxyl group increased the anti-osteoclastogenesis activity. Moreover, nineteen commercial flavonoids were also performed in this study to investigate their inhibitory activity on osteoclastogenesis, and furtherly develop the SAR profile in flavonoid skeleton combined with the information of isolated compounds. Interestingly, the absence of substituents in B-ring and (3R)-hydroxyl group seems to play a crucial role in increasing anti-osteoclastogenesis activity.
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Affiliation(s)
- Xiaoyu Wang
- The United Graduate School of Agricultural Science, Gifu University, Gifu, Japan
| | - Irmanida Batubara
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Tropical Biopharmaca Research Center, Bogor Agriculture University, Bogor 16128, Indonesia
| | - Kosei Yamauchi
- The United Graduate School of Agricultural Science, Gifu University, Gifu, Japan
| | - Tohru Mitsunaga
- The United Graduate School of Agricultural Science, Gifu University, Gifu, Japan.
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Pirosa A, Gottardi R, Alexander PG, Tuan RS. Engineering in-vitro stem cell-based vascularized bone models for drug screening and predictive toxicology. Stem Cell Res Ther 2018; 9:112. [PMID: 29678192 PMCID: PMC5910611 DOI: 10.1186/s13287-018-0847-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The production of veritable in-vitro models of bone tissue is essential to understand the biology of bone and its surrounding environment, to analyze the pathogenesis of bone diseases (e.g., osteoporosis, osteoarthritis, osteomyelitis, etc.), to develop effective therapeutic drug screening, and to test potential therapeutic strategies. Dysregulated interactions between vasculature and bone cells are often related to the aforementioned pathologies, underscoring the need for a bone model that contains engineered vasculature. Due to ethical restraints and limited prediction power of animal models, human stem cell-based tissue engineering has gained increasing relevance as a candidate approach to overcome the limitations of animals and to serve as preclinical models for drug testing. Since bone is a highly vascularized tissue, the concomitant development of vasculature and mineralized matrix requires a synergistic interaction between osteogenic and endothelial precursors. A number of experimental approaches have been used to achieve this goal, such as the combination of angiogenic factors and three-dimensional scaffolds, prevascularization strategies, and coculture systems. In this review, we present an overview of the current models and approaches to generate in-vitro stem cell-based vascularized bone, with emphasis on the main challenges of vasculature engineering. These challenges are related to the choice of biomaterials, scaffold fabrication techniques, and cells, as well as the type of culturing conditions required, and specifically the application of dynamic culture systems using bioreactors.
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Affiliation(s)
- Alessandro Pirosa
- Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, 450 Technology Drive, Pittsburgh, PA 15219 USA
| | - Riccardo Gottardi
- Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, 450 Technology Drive, Pittsburgh, PA 15219 USA
- Ri.MED Foundation, Via Bandiera 11, Palermo, 90133 Italy
| | - Peter G. Alexander
- Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, 450 Technology Drive, Pittsburgh, PA 15219 USA
| | - Rocky S. Tuan
- Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, 450 Technology Drive, Pittsburgh, PA 15219 USA
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10
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Jokanović V, Čolović B, Marković D, Petrović M, Soldatović I, Antonijević D, Milosavljević P, Sjerobabin N, Sopta J. Extraordinary biological properties of a new calcium hydroxyapatite/poly(lactide-co-glycolide)-based scaffold confirmed by in vivo investigation. ACTA ACUST UNITED AC 2017; 62:295-306. [PMID: 27285125 DOI: 10.1515/bmt-2015-0164] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 04/27/2016] [Indexed: 11/15/2022]
Abstract
This study examined the potential of a new porous calcium hydroxyapatite scaffold covered with poly (lactide-co-glycolide) (PLGA) as a bone substitute, identifying its advantages over Geistlich Bio-Oss®, considered the gold standard, in in vivo biofunctionality investigations. Structural and morphological properties of the new scaffold were analyzed by scanning electron and atomic force microscopy. The biofunctionality assays were performed on New Zealand white rabbits using new scaffold for filling full-thickness defects of critical size. The evaluated parameters were: the presence of macrophages, giant cells, monoocytes, plasma cells, granulocytes, neoangiogenesis, fibroplasia, and the percentage of mineralization. Parallel biofunctionality assays were performed using Geistlich Bio-Oss®. The appearance of bone defects 12 weeks after the new scaffold implantation showed the presence of a small number of typical immune response cells. Furthermore, significantly reduced number of capillary buds, low intensity of fibroplasia and high degree of mineralization in a lamellar pattern indicated that the inflammation process has been almost completely overcome and that the new bone formed was in the final phase of remodeling. All biofunctionality assays proved the new scaffold's suitability as a bone substitute for applications in maxillofacial surgery. It showed numerous biological advantages over Geistlich Bio-Oss® which was reflected mainly as a lower number of giant cells surrounding implanted material and higher degree of mineralization in new formed bone.
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Perisic T, Zhang Z, Foehr P, Hopfner U, Klutz K, Burgkart RH, Slobodianski A, Goeldner M, Machens HG, Schilling AF. Biodegradable poly (lactic acid-co-glycolic acid) scaffolds as carriers for genetically-modified fibroblasts. PLoS One 2017; 12:e0174860. [PMID: 28380080 PMCID: PMC5381796 DOI: 10.1371/journal.pone.0174860] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 03/16/2017] [Indexed: 01/01/2023] Open
Abstract
Recent advances in gene delivery into cells allow improved therapeutic effects in gene therapy trials. To increase the bioavailability of applied cells, it is of great interest that transfected cells remain at the application site and systemic spread is minimized. In this study, we tested clinically used biodegradable poly(lactic acid-co-glycolic acid) (PLGA) scaffolds (Vicryl & Ethisorb) as transient carriers for genetically modified cells. To this aim, we used human fibroblasts and examined attachment and proliferation of untransfected cells on the scaffolds in vitro, as well as the mechanical properties of the scaffolds at four time points (1, 3, 6 and 9 days) of cultivation. Furthermore, the adherence of cells transfected with green fluorescent protein (GFP) and vascular endothelial growth factor (VEGF165) and also VEGF165 protein secretion were investigated. Our results show that human fibroblasts adhere on both types of PLGA scaffolds. However, proliferation and transgene expression capacity were higher on Ethisorb scaffolds most probably due to a different architecture of the scaffold. Additionally, cultivation of the cells on the scaffolds did not alter their biomechanical properties. The results of this investigation could be potentially exploited in therapeutic regiments with areal delivery of transiently transfected cells and may open the way for a variety of applications of cell-based gene therapy, tissue engineering and regenerative medicine.
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Affiliation(s)
- Tatjana Perisic
- Experimental Plastic Surgery, Department for Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Ziyang Zhang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Peter Foehr
- Department of Orthopaedics and Sportsorthopaedics, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Ursula Hopfner
- Experimental Plastic Surgery, Department for Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Kathrin Klutz
- Experimental Plastic Surgery, Department for Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Rainer H. Burgkart
- Department of Orthopaedics and Sportsorthopaedics, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Alexei Slobodianski
- Experimental Plastic Surgery, Department for Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | | | - Hans-Günther Machens
- Experimental Plastic Surgery, Department for Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Arndt F. Schilling
- Experimental Plastic Surgery, Department for Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- Klinik für Unfallchirurgie, Orthopädie und Plastische Chirurgie, University Medical Center Göttingen, Göttingen, Germany
- * E-mail:
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Ciapetti G, Di Pompo G, Avnet S, Martini D, Diez-Escudero A, Montufar EB, Ginebra MP, Baldini N. Osteoclast differentiation from human blood precursors on biomimetic calcium-phosphate substrates. Acta Biomater 2017; 50:102-113. [PMID: 27940198 DOI: 10.1016/j.actbio.2016.12.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 11/08/2016] [Accepted: 12/06/2016] [Indexed: 12/25/2022]
Abstract
The design of synthetic bone grafts to foster bone formation is a challenge in regenerative medicine. Understanding the interaction of bone substitutes with osteoclasts is essential, since osteoclasts not only drive a timely resorption of the biomaterial, but also trigger osteoblast activity. In this study, the adhesion and differentiation of human blood-derived osteoclast precursors (OCP) on two different micro-nanostructured biomimetic hydroxyapatite materials consisting in coarse (HA-C) and fine HA (HA-F) crystals, in comparison with sintered stoichiometric HA (sin-HA, reference material), were investigated. Osteoclasts were induced to differentiate by RANKL-containing supernatant using cell/substrate direct and indirect contact systems, and calcium (Ca++) and phosphorus (P5+) in culture medium were measured. We observed that OCP adhered to the experimental surfaces, and that osteoclast-like cells formed at a rate influenced by the micro- and nano-structure of HA, which also modulate extracellular Ca++. Qualitative differences were found between OCP on biomimetic HA-C and HA-F and their counterparts on plastic and sin-HA. On HA-C and HA-F cells shared typical features of mature osteoclasts, i.e. podosomes, multinuclearity, tartrate acid phosphatase (TRAP)-positive staining, and TRAP5b-enzyme release. However, cells were less in number compared to those on plastic or on sin-HA, and they did not express some specific osteoclast markers. In conclusion, blood-derived OCP are able to attach to biomimetic and sintered HA substrates, but their subsequent fusion and resorptive activity are hampered by surface micro-nano-structure. Indirect cultures suggest that fusion of OCP is sensitive to topography and to extracellular calcium. STATEMENT OF SIGNIFICANCE The novelty of the paper is the differentiation of human blood-derived osteoclast precursors, instead of mouse-derived macrophages as used in most studies, directly on biomimetic micro-nano structured HA-based surfaces, as triggered by osteoblast-produced factors (RANKL/OPG), and influenced by chemistry and topography of the substrate(s). Biomimetic HA-surfaces, like those obtained in calcium phosphate cements, are very different from the conventional calcium phosphate ceramics, both in terms of topography and ion exchange. The role of these factors in modulating precursors' differentiation and activity is analysed. The system is closely reproducing the physiological process of attachment of host cells and further maturation to osteoclasts toward resorption of the substrate, which occurs in vivo after filling bone defects with the calcium phosphate grafts.
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Affiliation(s)
- Gabriela Ciapetti
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, Istituto Ortopedico Rizzoli, Bologna, Italy.
| | - Gemma Di Pompo
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, Istituto Ortopedico Rizzoli, Bologna, Italy; Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy.
| | - Sofia Avnet
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, Istituto Ortopedico Rizzoli, Bologna, Italy.
| | - Desirée Martini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy.
| | - Anna Diez-Escudero
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgy, Technical University of Catalonia, BarcelonaTech (UPC), Barcelona, Spain.
| | - Edgar B Montufar
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgy, Technical University of Catalonia, BarcelonaTech (UPC), Barcelona, Spain.
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgy, Technical University of Catalonia, BarcelonaTech (UPC), Barcelona, Spain; Institute for Bioengineering of Catalonia, Barcelona, Spain.
| | - Nicola Baldini
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, Istituto Ortopedico Rizzoli, Bologna, Italy; Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy.
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Frasca S, Norol F, Le Visage C, Collombet JM, Letourneur D, Holy X, Sari Ali E. Calcium-phosphate ceramics and polysaccharide-based hydrogel scaffolds combined with mesenchymal stem cell differently support bone repair in rats. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:35. [PMID: 28110459 PMCID: PMC5253158 DOI: 10.1007/s10856-016-5839-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 12/29/2016] [Indexed: 06/05/2023]
Abstract
Research in bone tissue engineering is focused on the development of alternatives to autologous bone grafts for bone reconstruction. Although multiple stem cell-based products and biomaterials are currently being investigated, comparative studies are rarely achieved to evaluate the most appropriate approach in this context. Here, we aimed to compare different clinically relevant bone tissue engineering methods and evaluated the kinetic repair and the bone healing efficiency supported by mesenchymal stem cells and two different biomaterials, a new hydrogel scaffold and a commercial hydroxyapatite/tricalcium phosphate ceramic, alone or in combination.Syngeneic mesenchymal stem cells (5 × 105) and macroporous biphasic calcium phosphate ceramic granules (Calciresorb C35®, Ceraver) or porous pullulan/dextran-based hydrogel scaffold were implanted alone or combined in a drilled-hole bone defect in rats. Using quantitative microtomography measurements and qualitative histological examinations, their osteogenic properties were evaluated 7, 30, and 90 days after implantation. Three months after surgery, only minimal repair was evidenced in control rats while newly mineralized bone was massively observed in animals treated with either hydrogels (bone volume/tissue volume = 20%) or ceramics (bone volume/tissue volume = 26%). Repair mechanism and resorption kinetics were strikingly different: rapidly-resorbed hydrogels induced a dense bone mineralization from the edges of the defect while ceramics triggered newly woven bone formation in close contact with the ceramic surface that remained unresorbed. Delivery of mesenchymal stem cells in combination with these biomaterials enhanced both bone healing (>20%) and neovascularization after 1 month, mainly in hydrogel.Osteogenic and angiogenic properties combined with rapid resorption make hydrogels a promising alternative to ceramics for bone repair by cell therapy.
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Affiliation(s)
- Sophie Frasca
- Département Soutien Médico-Chirurgical des Forces, Institut de Recherche Biomédicale des Armées (IRBA), BP 73, 91223, Brétigny-sur-Orge cedex, France.
| | - Françoise Norol
- AP-HP, Service de Biothérapie, Hôpital de la Pitié Salpêtrière, Paris, France
| | - Catherine Le Visage
- INSERM U791, Centre for Osteoarticular and Dental Tissue Engineering, Nantes, France
| | - Jean-Marc Collombet
- Département Soutien Médico-Chirurgical des Forces, Institut de Recherche Biomédicale des Armées (IRBA), BP 73, 91223, Brétigny-sur-Orge cedex, France
| | - Didier Letourneur
- INSERM U1148, LVTS, Université Paris 13, Hôpital X. Bichat, Université Paris Diderot, Paris, France
| | - Xavier Holy
- Département Soutien Médico-Chirurgical des Forces, Institut de Recherche Biomédicale des Armées (IRBA), BP 73, 91223, Brétigny-sur-Orge cedex, France
| | - Elhadi Sari Ali
- AP-HP, Département de Chirurgie Orthopédique et Traumatologie, Hôpital de la Pitié Salpêtrière, Paris, France
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Wu VM, Uskoković V. Is there a relationship between solubility and resorbability of different calcium phosphate phases in vitro? BIOCHIMICA ET BIOPHYSICA ACTA 2016; 1860:2157-68. [PMID: 27212690 PMCID: PMC4961619 DOI: 10.1016/j.bbagen.2016.05.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 05/01/2016] [Accepted: 05/17/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Does chemistry govern biology or it is the other way around - that is a broad connotation of the question that this study attempted to answer. METHOD Comparison was made between the solubility and osteoclastic resorbability of four fundamentally different monophasic calcium phosphate (CP) powders with monodisperse particle size distributions: alkaline hydroxyapatite (HAP), acidic monetite (DCP), β-calcium pyrophosphate (CPP), and amorphous CP (ACP). Results With the exception of CPP, the difference in solubility between different CP phases became neither mitigated nor reversed, but augmented in the resorptive osteoclastic milieu. Thus, DCP, a phase with the highest solubility, was also resorbed more intensely than any other CP phase, whereas HAP, a phase with the lowest solubility, was resorbed least. CPP becomes retained inside the cells for the longest period of time, indicating hindered digestion of only this particular type of CP. Osteoclastogenesis was mildly hindered in the presence of HAP, ACP and DCP, but not in the presence of CPP. The most viable CP powder with respect to the mitochondrial succinic dehydrogenase activity was the one present in natural biological bone tissues: HAP. CONCLUSION Chemistry in this case does have a direct effect on biology. Biology neither overrides nor reverses the chemical propensities of inorganics with which it interacts, but rather augments and takes a direct advantage of them. SIGNIFICANCE These findings set the fundamental basis for designing the chemical makeup of CP and other biosoluble components of tissue engineering constructs for their most optimal resorption and tissue regeneration response.
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Affiliation(s)
- Victoria M Wu
- Advanced Materials and Nanobiotechnology Laboratory, Department of Bioengineering, University of Illinois, Chicago, IL, USA
| | - Vuk Uskoković
- Advanced Materials and Nanobiotechnology Laboratory, Department of Bioengineering, University of Illinois, Chicago, IL, USA
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15
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da Silva RC, Crivellaro VR, Giovanini AF, Scariot R, Gonzaga CC, Zielak JC. Radiographic and histological evaluation of ectopic application of deproteinized bovine bone matrix. Ann Maxillofac Surg 2016; 6:9-14. [PMID: 27563599 PMCID: PMC4979350 DOI: 10.4103/2231-0746.186150] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To evaluate, through radiographic and histological analysis, the tissue reaction induced by a biomaterial based on deproteinized bovine bone matrix (DBBM) in the muscle of sheep. MATERIALS AND METHODS Sixteen sheep were used. The animals underwent surgery to insert polyethylene tubes containing the biomaterial in the muscle of the lower back (ectopic site) and were euthanized after 3 and 6 months. Each sheep received three tubes: Group 1 - sham group (negative control - tube without biomaterial), Group 2 - particulate autogenous bone (positive control), and Group 3 - DBBM biomaterial (GenOx Inorg). The material removed was evaluated by radiographic, macroscopic, and microscopic analysis, descriptively. RESULTS Macroscopic analysis showed that Group 3 had a greater tissue volume maintenance. Microscopic analysis indicated that Group 1 had a higher concentration of dense, thin collagen fibers (3 and 6 months); in Group 2, there was a decrease in the inflammatory process and the deposition of dense, thin collagen fibers (3 and 6 months); in Group 3, the presence of a dense connective tissue was noted, in which the DBBM particles (3 months) were found. On the periphery of these particles, a deposition of basophilic material was found, indicating the formation of mineral particles and the formation of tissues with osteoid characteristics (6 months). CONCLUSION Based on the results obtained, it can be concluded that the biomaterial based on DBBM led to the formation of tissue with similar characteristics to an osteoid matrix in a postoperative period of 6 months. However, none of the groups evaluated showed ectopic bone neoformation.
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Affiliation(s)
| | | | | | - Rafaela Scariot
- Graduate Program in Dentistry, Positivo University, Curitiba, PR, Brazil
| | | | - João César Zielak
- Graduate Program in Dentistry, Positivo University, Curitiba, PR, Brazil
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Detsch R, Rübner M, Strissel PL, Mohn D, Strasser E, Stark WJ, Strick R, Boccaccini AR. Nanoscale bioactive glass activates osteoclastic differentiation of RAW 264.7 cells. Nanomedicine (Lond) 2016; 11:1093-105. [PMID: 27092984 DOI: 10.2217/nnm.16.20] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND There is limited knowledge regarding differentiation of osteoclasts in the presence of nanoscale bioactive glass (nBG). This investigation examined increasing concentrations of 45S5 nBG and their influence on osteoclast differentiation. MATERIALS & METHODS Different concentrations of 45S5 nBG were cultured up to 14 days with the murine RAW264.7 cell line and human primary monocytes cultured with M-CSF and RANKL. RESULTS Culturing cells for 14 days with 500 μg/ml nBG showed a viability of 100%; however DNA synthesis was reduced, supporting differentiation into osteoclast-like cells. Using RAW cells, activation of nine genes, including cell fusion genes, occurred in an nBG concentration dependent manner. Low concentrations of nBG increased expression of genes involved in commitment to cell fusion, whereas high concentrations increased gene expression supporting osteoclast-like differentiation. CONCLUSION nBG enhances both RAW264.7 and human osteoclast differentiation. nBG controlled gene expression in a concentration dependent manner could reflect normal regulation during bone growth.
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Affiliation(s)
- Rainer Detsch
- Department of Materials Science & Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany
| | - Matthias Rübner
- Department of Gynaecology & Obstetrics, Laboratory for Molecular Medicine, Friedrich-Alexander University Erlangen-Nürnberg (FAU), University-Clinic Erlangen, Universitätsstraße 21-23, 91054 Erlangen, Germany
| | - Pamela L Strissel
- Department of Gynaecology & Obstetrics, Laboratory for Molecular Medicine, Friedrich-Alexander University Erlangen-Nürnberg (FAU), University-Clinic Erlangen, Universitätsstraße 21-23, 91054 Erlangen, Germany
| | - Dirk Mohn
- Institute for Chemical & Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland.,Clinic of Preventive Dentistry, Periodontology & Cariology, University of Zurich, Center of Dental Medicine, Plattenstraße 11, 8032 Zurich, Switzerland
| | - Erwin Strasser
- Department of Transfusion Medicine & Haemostaseology, University-Clinic Erlangen, Krankenhausstraße 12, 91054 Erlangen, Germany
| | - Wendelin J Stark
- Institute for Chemical & Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Reiner Strick
- Department of Gynaecology & Obstetrics, Laboratory for Molecular Medicine, Friedrich-Alexander University Erlangen-Nürnberg (FAU), University-Clinic Erlangen, Universitätsstraße 21-23, 91054 Erlangen, Germany
| | - Aldo R Boccaccini
- Department of Materials Science & Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany
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Wang L, Qiu XM, Gui YY, Xu YP, Gober HJ, Li DJ. Bu-Shen-Ning-Xin decoction: inhibition of osteoclastogenesis by abrogation of the RANKL-induced NFATc1 and NF-κB signaling pathways via selective estrogen receptor α. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:3755-66. [PMID: 26229438 PMCID: PMC4516212 DOI: 10.2147/dddt.s88512] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
INTRODUCTION Bu-Shen-Ning-Xin decoction (BSNXD) is a traditional Chinese medicinal composition that has been used as a remedy for postmenopausal osteoporosis, but the mechanisms affecting bone metabolism are not fully understood. PURPOSE We investigated the molecular mechanism and signaling pathway underlying the effect of BSNXD on osteoclastogenesis. MATERIALS AND METHODS A postmenopausal osteoporosis animal model generated by ovariectomy was administered BSNXD and drug-derived serum was prepared. An enzyme immunoassay was conducted to measure the 17-β-estradiol (E2) concentration in the drug-derived serum. Bone marrow-derived monocyte/macrophage precursor cells were treated with drug-derived serum, and tartrate-resistance acid phosphatase staining was conducted to observe osteoclastogenesis. A bone resorption assay was performed to analyze the effect on osteoclastic resorptive function. Real-time PCR, flow cytometry, Western blotting, transfection, and luciferase assays were conducted to explore the related mechanism. RESULTS E2 was not elevated in BSNXD-derived serum. BSNXD-derived serum suppressed receptor activation of nuclear factor κB ligand (RANKL)-activated osteoclastogenesis in a dose-dependent manner; this effect could be reversed by estrogen receptor α antagonist methyl-piperidino-pyrazole. The serum suppressed RANKL-induced NF-κB transcription and inhibited the accumulation of nuclear factor of activated T-cells, cytoplasmic 1 in osteoclast precursor cells; the inhibitory effect was abolished by methyl-piperidino-pyrazole but not the estrogen receptor β antagonist or androgen receptor antagonist. CONCLUSION These results collectively suggest that administration of BSNXD presents inhibitory effects on osteoclast differentiation by abrogating the RANKL-induced nuclear factor of activated T-cells, cytoplasmic 1 and NF-κB signaling pathways downstream of estrogen receptor α, thereby contributing to the inhibitory effect on bone resorption.
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Affiliation(s)
- Ling Wang
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, IBS, Fudan University Shanghai Medical College, Shanghai, People's Republic of China ; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, People's Republic of China
| | - Xue-Min Qiu
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, IBS, Fudan University Shanghai Medical College, Shanghai, People's Republic of China ; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, People's Republic of China
| | - Yu-Yan Gui
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, IBS, Fudan University Shanghai Medical College, Shanghai, People's Republic of China ; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, People's Republic of China
| | - Ying-Ping Xu
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, IBS, Fudan University Shanghai Medical College, Shanghai, People's Republic of China ; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, People's Republic of China
| | - Hans-Jürgen Gober
- Department of Pharmacy, Wagner Jauregg Hospital and Children's Hospital, Wagner Jauregg Weg, Linz, Austria
| | - Da-Jin Li
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, IBS, Fudan University Shanghai Medical College, Shanghai, People's Republic of China
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Schulze-Späte U, Dietrich T, Wu C, Wang K, Hasturk H, Dibart S. Systemic vitamin D supplementation and local bone formation after maxillary sinus augmentation - a randomized, double-blind, placebo-controlled clinical investigation. Clin Oral Implants Res 2015; 27:701-6. [DOI: 10.1111/clr.12641] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/18/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Ulrike Schulze-Späte
- Division of Periodontics; Section of Oral and Diagnostic Sciences; College of Dental Medicine; Columbia University; New York NY USA
| | - Thomas Dietrich
- Department of Oral Surgery; The School of Dentistry; University of Birmingham; Birmingham UK
| | - Christina Wu
- Department of Medicine; Division of Cardiology; Columbia University Medical Center; New York NY USA
| | - Kun Wang
- Division of Periodontics; Section of Oral and Diagnostic Sciences; College of Dental Medicine; Columbia University; New York NY USA
| | - Hatice Hasturk
- Department of Applied Oral Sciences; The Forsyth Institute; Cambridge MA USA
| | - Serge Dibart
- Department of Periodontology; Goldman School of Dental Medicine; Boston University; Boston MA USA
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Engraftment of Prevascularized, Tissue Engineered Constructs in a Novel Rabbit Segmental Bone Defect Model. Int J Mol Sci 2015; 16:12616-30. [PMID: 26053395 PMCID: PMC4490464 DOI: 10.3390/ijms160612616] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Revised: 04/20/2015] [Accepted: 05/26/2015] [Indexed: 12/26/2022] Open
Abstract
The gold standard treatment of large segmental bone defects is autologous bone transfer, which suffers from low availability and additional morbidity. Tissue engineered bone able to engraft orthotopically and a suitable animal model for pre-clinical testing are direly needed. This study aimed to evaluate engraftment of tissue-engineered bone with different prevascularization strategies in a novel segmental defect model in the rabbit humerus. Decellularized bone matrix (Tutobone) seeded with bone marrow mesenchymal stromal cells was used directly orthotopically or combined with a vessel and inserted immediately (1-step) or only after six weeks of subcutaneous “incubation” (2-step). After 12 weeks, histological and radiological assessment was performed. Variable callus formation was observed. No bone formation or remodeling of the graft through TRAP positive osteoclasts could be detected. Instead, a variable amount of necrotic tissue formed. Although necrotic area correlated significantly with amount of vessels and the 2-step strategy had significantly more vessels than the 1-step strategy, no significant reduction of necrotic area was found. In conclusion, the animal model developed here represents a highly challenging situation, for which a suitable engineered bone graft with better prevascularization, better resorbability and higher osteogenicity has yet to be developed.
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Kovtun A, Goeckelmann MJ, Niclas AA, Montufar EB, Ginebra MP, Planell JA, Santin M, Ignatius A. In vivo performance of novel soybean/gelatin-based bioactive and injectable hydroxyapatite foams. Acta Biomater 2015; 12:242-249. [PMID: 25448348 PMCID: PMC4298359 DOI: 10.1016/j.actbio.2014.10.034] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 10/16/2014] [Accepted: 10/23/2014] [Indexed: 11/26/2022]
Abstract
Major limitations of calcium phosphate cements (CPCs) are their relatively slow degradation rate and the lack of macropores allowing the ingrowth of bone tissue. The development of self-setting cement foams has been proposed as a suitable strategy to overcome these limitations. In previous work we developed a gelatine-based hydroxyapatite foam (G-foam), which exhibited good injectability and cohesion, interconnected porosity and good biocompatibility in vitro. In the present study we evaluated the in vivo performance of the G-foam. Furthermore, we investigated whether enrichment of the foam with soybean extract (SG-foam) increased its bioactivity. G-foam, SG-foam and non-foamed CPC were implanted in a critical-size bone defect in the distal femoral condyle of New Zealand white rabbits. Bone formation and degradation of the materials were investigated after 4, 12 and 20weeks using histological and biomechanical methods. The foams maintained their macroporosity after injection and setting in vivo. Compared to non-foamed CPC, cellular degradation of the foams was considerably increased and accompanied by new bone formation. The additional functionalization with soybean extract in the SG-foam slightly reduced the degradation rate and positively influenced bone formation in the defect. Furthermore, both foams exhibited excellent biocompatibility, implying that these novel materials may be promising for clinical application in non-loaded bone defects.
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Affiliation(s)
- Anna Kovtun
- Institute of Orthopaedic Research and Biomechanics, University of Ulm, Helmholtzstrasse 14, D-89081 Ulm, Germany
| | - Melanie J Goeckelmann
- Institute of Orthopaedic Research and Biomechanics, University of Ulm, Helmholtzstrasse 14, D-89081 Ulm, Germany
| | - Antje A Niclas
- Military Hospital Ulm, Oberer Eselsberg 40, D-89081 Ulm, Germany
| | - Edgar B Montufar
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Technical University of Catalonia, Av. Diagonal 647, E08028 Barcelona, Spain
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Technical University of Catalonia, Av. Diagonal 647, E08028 Barcelona, Spain
| | - Josep A Planell
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Technical University of Catalonia, Av. Diagonal 647, E08028 Barcelona, Spain; Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac 15-21, 08028 Barcelona, Spain
| | - Matteo Santin
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Cockcroft Building, Lewes Road, Brighton BN2 4GJ, UK
| | - Anita Ignatius
- Institute of Orthopaedic Research and Biomechanics, University of Ulm, Helmholtzstrasse 14, D-89081 Ulm, Germany.
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Bernhardt A, Schumacher M, Gelinsky M. Formation of osteoclasts on calcium phosphate bone cements and polystyrene depends on monocyte isolation conditions. Tissue Eng Part C Methods 2014; 21:160-70. [PMID: 24919531 DOI: 10.1089/ten.tec.2014.0187] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES Peripheral blood mononuclear cells (PBMC) are an attractive source for the generation of osteoclasts in vitro, which is an important prerequisite for the examination of resorption and remodeling of biomaterials. In this study, different preparation methods are used to obtain cell populations with a rising content of CD14(+) monocytes. We wanted to address the question whether there is a correlation between content of CD14(+) cells in the preparation and functionality of formed osteoclasts. MATERIALS AND METHODS PBMC obtained by density gradient centrifugation with and without further purification by plastic adherence or immunomagnetic separation of CD14(+) cells were seeded on both cell culture polystyrene and a calcium phosphate bone cement (CPC) and cultivated under stimulation with macrophage colony-stimulating factor (M-CSF) and receptor activator of nuclear factor-kappa B ligand (RANKL). Cell cultures were characterized by histological and fluorescent staining of multinucleated cells that were positive for tartrate-resistant acid phosphatase (TRAP) activity and the presence of actin rings, respectively. Furthermore, activities of osteoclast marker enzymes TRAP and carbonic anhydrase II (CA II) were quantified. For osteoclasts cultured on CPC, resorption pits were visualized using scanning electron microscopy (SEM). RESULTS Monocytes of all preparations were successfully differentiated into multinucleated osteoclasts showing TRAP and CA II activity on both cell culture plastic and CPC. Preparations involving an additional plastic adherence step exhibited only a minor increase of TRAP and CA II activity in the second week of cultivation. Furthermore, the number of resorption pits on CPC was reduced in these cultures compared with immunomagnetically enriched monocytes and preparations without additional plastic adherence steps. Optimal results with regard to yield, number of multinucleated osteoclasts, activity of TRAP and CA II, and resorption of CPC were obtained by simple density gradient centrifugation. CONCLUSION All examined monocyte preparation protocols were suitable for the generation of osteoclasts on both polystyrene and CPC. Highly purified monocytes are not mandatory to obtain functional osteoclasts for investigation of biomaterial resorption.
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Affiliation(s)
- Anne Bernhardt
- Centre for Translational Bone, Joint and Soft Tissue Research, University Hospital, Medical Faculty Carl Gustav Carus, Technische Universität Dresden , Dresden, Germany
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