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Stipniece L, Ramata-Stunda A, Vecstaudza J, Kreicberga I, Livkisa D, Rubina A, Sceglovs A, Salma-Ancane K. A Comparative Study on Physicochemical Properties and In Vitro Biocompatibility of Sr-Substituted and Sr Ranelate-Loaded Hydroxyapatite Nanoparticles. ACS APPLIED BIO MATERIALS 2023; 6:5264-5281. [PMID: 38039078 PMCID: PMC10731655 DOI: 10.1021/acsabm.3c00539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 12/03/2023]
Abstract
Synthetic hydroxyapatite nanoparticles (nHAp) possess compositional and structural similarities to those of bone minerals and play a key role in bone regenerative medicine. Functionalization of calcium phosphate biomaterials with Sr, i.e., bone extracellular matrix trace element, has been proven to be an effective biomaterial-based strategy for promoting osteogenesis in vitro and in vivo. Functionalizing nHAp with Sr2+ ions or strontium ranelate (SrRAN) can provide favorable bone tissue regeneration by locally delivering bioactive molecules to the bone defect microenvironment. Moreover, administering an antiosteoporotic drug, SrRAN, directly into site-specific bone defects could significantly reduce the necessary drug dosage and the risk of possible side effects. Our study evaluated the impact of the Sr source (Sr2+ ions and SrRAN) used to functionalize nHAp by wet precipitation on its in vitro cellular activities. The systematic comparison of physicochemical properties, in vitro Sr2+ and Ca2+ ion release, and their effect on in vitro cellular activities of the developed Sr-functionalized nHAp was performed. The ion release tests in TRIS-HCl demonstrated a 21-day slow and continuous release of the Sr2+ and Ca2+ ions from both Sr-substituted nHAp and SrRAN-loaded HAp. Also, SrRAN and Sr2+ ion release kinetics were evaluated in DMEM to understand their correlation with in vitro cellular effects in the same time frame. Relatively low concentration (up to 2 wt %) of Sr in the nHAp led to an increase in the alkaline phosphatase activity in preosteoblasts and expression of collagen I and osteocalcin in osteoblasts, demonstrating their ability to boost bone formation.
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Affiliation(s)
- Liga Stipniece
- Rudolfs
Cimdins Riga Biomaterials Innovations and Development Centre of RTU,
Institute of General Chemical Engineering, Faculty of Materials Science
and Applied Chemistry, Riga Technical University, Pulka St. 3/3, Riga LV-1007, Latvia
- Baltic
Biomaterials Centre of Excellence, Headquarters
at Riga Technical University, Riga LV-1007, Latvia
| | - Anna Ramata-Stunda
- Department
of Microbiology and Biotechnology, Faculty of Biology, University of Latvia, Jelgavas St. 1, Riga LV-1004, Latvia
| | - Jana Vecstaudza
- Rudolfs
Cimdins Riga Biomaterials Innovations and Development Centre of RTU,
Institute of General Chemical Engineering, Faculty of Materials Science
and Applied Chemistry, Riga Technical University, Pulka St. 3/3, Riga LV-1007, Latvia
- Baltic
Biomaterials Centre of Excellence, Headquarters
at Riga Technical University, Riga LV-1007, Latvia
| | - Inta Kreicberga
- Rudolfs
Cimdins Riga Biomaterials Innovations and Development Centre of RTU,
Institute of General Chemical Engineering, Faculty of Materials Science
and Applied Chemistry, Riga Technical University, Pulka St. 3/3, Riga LV-1007, Latvia
- Baltic
Biomaterials Centre of Excellence, Headquarters
at Riga Technical University, Riga LV-1007, Latvia
| | - Dora Livkisa
- Department
of Microbiology and Biotechnology, Faculty of Biology, University of Latvia, Jelgavas St. 1, Riga LV-1004, Latvia
| | - Anna Rubina
- Rudolfs
Cimdins Riga Biomaterials Innovations and Development Centre of RTU,
Institute of General Chemical Engineering, Faculty of Materials Science
and Applied Chemistry, Riga Technical University, Pulka St. 3/3, Riga LV-1007, Latvia
- Baltic
Biomaterials Centre of Excellence, Headquarters
at Riga Technical University, Riga LV-1007, Latvia
| | - Artemijs Sceglovs
- Rudolfs
Cimdins Riga Biomaterials Innovations and Development Centre of RTU,
Institute of General Chemical Engineering, Faculty of Materials Science
and Applied Chemistry, Riga Technical University, Pulka St. 3/3, Riga LV-1007, Latvia
- Baltic
Biomaterials Centre of Excellence, Headquarters
at Riga Technical University, Riga LV-1007, Latvia
| | - Kristine Salma-Ancane
- Rudolfs
Cimdins Riga Biomaterials Innovations and Development Centre of RTU,
Institute of General Chemical Engineering, Faculty of Materials Science
and Applied Chemistry, Riga Technical University, Pulka St. 3/3, Riga LV-1007, Latvia
- Baltic
Biomaterials Centre of Excellence, Headquarters
at Riga Technical University, Riga LV-1007, Latvia
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Biodegradable Mg-Sc-Sr Alloy Improves Osteogenesis and Angiogenesis to Accelerate Bone Defect Restoration. J Funct Biomater 2022; 13:jfb13040261. [PMID: 36547521 PMCID: PMC9787880 DOI: 10.3390/jfb13040261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 11/23/2022] Open
Abstract
Magnesium (Mg) and its alloys are considered to be biodegradable metallic biomaterials for potential orthopedic implants. While the osteogenic properties of Mg alloys have been widely studied, few reports focused on developing a bifunctional Mg implant with osteogenic and angiogenic properties. Herein, a Mg-Sc-Sr alloy was developed, and this alloy's angiogenesis and osteogenesis effects were evaluated in vitro for the first time. X-ray Fluorescence (XRF), X-ray diffraction (XRD), and metallography images were used to evaluate the microstructure of the developed Mg-Sc-Sr alloy. Human umbilical vein/vascular endothelial cells (HUVECs) were used to evaluate the angiogenic character of the prepared Mg-Sc-Sr alloy. A mix of human bone-marrow-derived mesenchymal stromal cells (hBM-MSCs) and HUVEC cell cultures were used to assess the osteogenesis-stimulating effect of Mg-Sc-Sr alloy through alkaline phosphatase (ALP) and Von Kossa staining. Higher ALP activity and the number of calcified nodules (27% increase) were obtained for the Mg-Sc-Sr-treated groups compared to Mg-treated groups. In addition, higher VEGF expression (45.5% increase), tube length (80.8% increase), and number of meshes (37.9% increase) were observed. The Mg-Sc-Sr alloy showed significantly higher angiogenesis and osteogenic differentiation than pure Mg and the control group, suggesting such a composition as a promising candidate in bone implants.
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Xu G, Guo R, Han L, Bie X, Hu X, Li L, Li Z, Zhao Y. Comparison of osteogenesis of bovine bone xenografts between true bone ceramics and decalcified bone matrix. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:75. [PMID: 36243895 PMCID: PMC9569310 DOI: 10.1007/s10856-022-06696-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Xenograft bone scaffolds have certain advantages such as mechanical strength, osteoinductive properties, sufficient source and safety. This study aimed to compare osteogenesis of the two main bovine bone xenografts namely true bone ceramics (TBC) and decalcified bone matrix (DBM), and TBC or DBM combined with bone morphogenetic protein (BMP)-2 (TBC&BMP-2 and DBM&BMP-2). The characteristics of TBC and DBM were investigated by observing the appearance and scanning electron microscopic images, examining mechanical strength, evaluating cytotoxicity and detecting BMP-2 release after being combined with BMP-2 in vitro. The femoral condyle defect and radial defect models were successively established to evaluate the performance of the proposed scaffolds in repairing cortical and cancellous bone defects. General observation, hematoxylin and eosin (HE) staining, mirco-CT scanning, calcein double labeling, X-ray film observation, three-point bending test in vivo were then performed. It indicated that the repair with xenograft bone scaffolds of 8 weeks were needed and the repair results were better than those of 4 weeks whatever the type of defects. To femoral condyle defect, TBC and TBC&BMP-2 were better than DBM and DBM&BMP-2, and TBC&BMP-2 was better than TBC alone; to radial defect, DBM and DBM&BMP-2 were better than TBC and TBC&BMP-2, and DBM&BMP-2 was better than DBM alone. This study has shown that TBC and DBM xenograft scaffolds can be more suitable for the repair of cancellous bone and cortical bone defects for 8 weeks in rats, respectively. We also have exhibited the use of BMP-2 in combination with DBM or TBC provides the possibility to treat bone defects more effectively. We thus believe that we probably need to select the more suitable scaffold according to bone defect types, and both TBC and DBM are promising xenograft materials for bone tissue engineering and regenerative medicine. Graphical abstract.
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Affiliation(s)
- Gang Xu
- Department of Orthopaedics, First Affiliated Hospital of Dalian Medical University, Dalian, 116011, PR China
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopaedic Diseases, Liaoning Province, Dalian, 116011, PR China
| | - Ruizhou Guo
- Institute of Orthopedics, Fourth Medical Center of the General Hospital of CPLA, 100048, Beijing, PR China
- Beijing Engineering Research Center of Orthopedics Implants, 100048, Beijing, PR China
| | - Liwei Han
- Institute of Orthopedics, Fourth Medical Center of the General Hospital of CPLA, 100048, Beijing, PR China
- Beijing Engineering Research Center of Orthopedics Implants, 100048, Beijing, PR China
| | - Xiaomei Bie
- Institute of Orthopedics, Fourth Medical Center of the General Hospital of CPLA, 100048, Beijing, PR China
- Beijing Engineering Research Center of Orthopedics Implants, 100048, Beijing, PR China
| | - Xiantong Hu
- Institute of Orthopedics, Fourth Medical Center of the General Hospital of CPLA, 100048, Beijing, PR China
- Beijing Engineering Research Center of Orthopedics Implants, 100048, Beijing, PR China
| | - Li Li
- Institute of Orthopedics, Fourth Medical Center of the General Hospital of CPLA, 100048, Beijing, PR China.
- Beijing Engineering Research Center of Orthopedics Implants, 100048, Beijing, PR China.
| | - Zhonghai Li
- Department of Orthopaedics, First Affiliated Hospital of Dalian Medical University, Dalian, 116011, PR China.
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopaedic Diseases, Liaoning Province, Dalian, 116011, PR China.
| | - Yantao Zhao
- Institute of Orthopedics, Fourth Medical Center of the General Hospital of CPLA, 100048, Beijing, PR China.
- Beijing Engineering Research Center of Orthopedics Implants, 100048, Beijing, PR China.
- State Key Laboratory of Military Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, PR China.
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Bohara S, Suthakorn J. Surface coating of orthopedic implant to enhance the osseointegration and reduction of bacterial colonization: a review. Biomater Res 2022; 26:26. [PMID: 35725501 PMCID: PMC9208209 DOI: 10.1186/s40824-022-00269-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/11/2022] [Indexed: 12/11/2022] Open
Abstract
The use of orthopedic implants in surgical technology has fostered restoration of physiological functions. Along with successful treatment, orthopedic implants suffer from various complications and fail to offer functions correspondent to native physiology. The major problems include aseptic and septic loosening due to bone nonunion and implant site infection due to bacterial colonization. Crucial advances in material selection in the design and development of coating matrixes an opportunity for the prevention of implant failure. However, many coating materials are limited in in-vitro testing and few of them thrive in clinical tests. The rate of implant failure has surged with the increasing rates of revision surgery creating physical and sensitive discomfort as well as economic burdens. To overcome critical pathogenic activities several systematic coating techniques have been developed offering excellent results that combat infection and enhance bone integration. This review article includes some more common implant coating matrixes with excellent in vitro and in vivo results focusing on infection rates, causes, complications, coating materials, host immune responses and significant research gaps. This study provides a comprehensive overview of potential coating technology, with functional combination coatings which are focused on ultimate clinical practice with substantial improvement on in-vivo tests. This includes the development of rapidly growing hydrogel coating techniques with the potential to generate several accurate and precise coating procedures.
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Affiliation(s)
- Smriti Bohara
- Department of Biomedical Engineering, Center for Biomedical and Robotics Technology (BART LAB), Faculty of Engineering, Mahidol University, Salaya, Thailand
| | - Jackrit Suthakorn
- Department of Biomedical Engineering, Center for Biomedical and Robotics Technology (BART LAB), Faculty of Engineering, Mahidol University, Salaya, Thailand.
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Nanoscale Strontium-Substituted Hydroxyapatite Pastes and Gels for Bone Tissue Regeneration. NANOMATERIALS 2021; 11:nano11061611. [PMID: 34205427 PMCID: PMC8235522 DOI: 10.3390/nano11061611] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/11/2021] [Accepted: 06/14/2021] [Indexed: 12/21/2022]
Abstract
Injectable nanoscale hydroxyapatite (nHA) systems are highly promising biomaterials to address clinical needs in bone tissue regeneration, due to their excellent biocompatibility, bioinspired nature, and ability to be delivered in a minimally invasive manner. Bulk strontium-substituted hydroxyapatite (SrHA) is reported to encourage bone tissue growth by stimulating bone deposition and reducing bone resorption, but there are no detailed reports describing the preparation of a systematic substitution up to 100% at the nanoscale. The aim of this work was therefore to fabricate systematic series (0–100 atomic% Sr) of SrHA pastes and gels using two different rapid-mixing methodological approaches, wet precipitation and sol-gel. The full range of nanoscale SrHA materials were successfully prepared using both methods, with a measured substitution very close to the calculated amounts. As anticipated, the SrHA samples showed increased radiopacity, a beneficial property to aid in vivo or clinical monitoring of the material in situ over time. For indirect methods, the greatest cell viabilities were observed for the 100% substituted SrHA paste and gel, while direct viability results were most likely influenced by material disaggregation in the tissue culture media. It was concluded that nanoscale SrHAs were superior biomaterials for applications in bone surgery, due to increased radiopacity and improved biocompatibility.
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Yang L, Ullah I, Yu K, Zhang W, Zhou J, Sun T, Shi L, Yao S, Chen K, Zhang X, Guo X. Bioactive Sr 2+/Fe 3+co-substituted hydroxyapatite in cryogenically 3D printed porous scaffolds for bone tissue engineering. Biofabrication 2021; 13. [PMID: 33260162 DOI: 10.1088/1758-5090/abcf8d] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 12/01/2020] [Indexed: 12/16/2022]
Abstract
Developing multi-doped bioceramics that possess biological multifunctionality is becoming increasingly attractive and promising for bone tissue engineering. In this view innovative Sr2+/Fe3+co-substituted nano-hydroxyapatite with gradient doping concentrations fixed at 10 mol% has been deliberately designed previously. Herein, to evaluate their therapeutic potentials for bone healing, novel gradient SrFeHA/PCL scaffolds are fabricated by extrusion cryogenic 3D printing technology with subsequent lyophilization. The obtained scaffolds exhibit desired 3D interconnected porous structure and rough microsurface, along with appreciable release of bioactive Sr2+/Fe3+from SrFeHA components. These favorable physicochemical properties render printed scaffolds realizing effective biological applications bothin vitroandin vivo, particularly the moderate co-substituted Sr7.5Fe2.5HA and Sr5Fe5HA groups exhibit remarkably enhanced bioactivity that not only promotes the functions of MC3T3 osteoblasts and HUVECs directly, but also energetically manipulates favorable macrophages activation to concurrently facilitate osteogenesis/angiogenesis. Moreover,in vivosubcutaneous implantation and cranial defects repair outcomes further confirm their superior capacity to dictate immune reaction, implants vascularization andin situbone regeneration, mainly dependent on the synergetic effects of released Sr2+/Fe3+. Accordingly, for the first time, present study highlights the great potential of Sr7.5Fe2.5HA and Sr5Fe5HA for ameliorating bone regeneration process by coupling of immunomodulation with enhanced angio- and osteogenesis and hence may provide a new promising alternative for future bone tissue engineering.
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Affiliation(s)
- Liang Yang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China.,L Yang, I Ullah and K D Yu contributed equally to this work
| | - Ismat Ullah
- State Key Laboratory of Materials Processing and Die/Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.,L Yang, I Ullah and K D Yu contributed equally to this work
| | - Keda Yu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China.,L Yang, I Ullah and K D Yu contributed equally to this work
| | - Wancheng Zhang
- State Key Laboratory of Materials Processing and Die/Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Jinge Zhou
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China
| | - Tingfang Sun
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China
| | - Lei Shi
- State Key Laboratory of Materials Processing and Die/Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Sheng Yao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China
| | - Kaifang Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China
| | - Xianglin Zhang
- State Key Laboratory of Materials Processing and Die/Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Xiaodong Guo
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China
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Bosch-Rué E, Diez-Tercero L, Giordano-Kelhoffer B, Delgado LM, Bosch BM, Hoyos-Nogués M, Mateos-Timoneda MA, Tran PA, Gil FJ, Perez RA. Biological Roles and Delivery Strategies for Ions to Promote Osteogenic Induction. Front Cell Dev Biol 2021; 8:614545. [PMID: 33520992 PMCID: PMC7841204 DOI: 10.3389/fcell.2020.614545] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 12/17/2020] [Indexed: 12/11/2022] Open
Abstract
Bone is the most studied tissue in the field of tissue regeneration. Even though it has intrinsic capability to regenerate upon injury, several pathologies and injuries could hamper the highly orchestrated bone formation and resorption process. Bone tissue engineering seeks to mimic the extracellular matrix of the tissue and the different biochemical pathways that lead to successful regeneration. For many years, the use of extrinsic factors (i.e., growth factors and drugs) to modulate these biological processes have been the preferred choice in the field. Even though it has been successful in some instances, this approach presents several drawbacks, such as safety-concerns, short release profile and half-time life of the compounds. On the other hand, the use of inorganic ions has attracted significant attention due to their therapeutic effects, stability and lower biological risks. Biomaterials play a key role in such strategies where they serve as a substrate for the incorporation and release of the ions. In this review, the methodologies used to incorporate ions in biomaterials is presented, highlighting the osteogenic properties of such ions and the roles of biomaterials in controlling their release.
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Affiliation(s)
- Elia Bosch-Rué
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Leire Diez-Tercero
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Barcelona, Spain
| | | | - Luis M. Delgado
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Begoña M. Bosch
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Mireia Hoyos-Nogués
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Barcelona, Spain
| | | | - Phong A. Tran
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD, Australia
- Interface Science and Materials Engineering Group, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, QLD, Australia
| | - Francisco Javier Gil
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Roman A. Perez
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Barcelona, Spain
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Yang L, Zhou J, Yu K, Yang S, Sun T, Ji Y, Xiong Z, Guo X. Surface modified small intestinal submucosa membrane manipulates sequential immunomodulation coupled with enhanced angio- and osteogenesis towards ameliorative guided bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 119:111641. [PMID: 33321679 DOI: 10.1016/j.msec.2020.111641] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 10/03/2020] [Accepted: 10/12/2020] [Indexed: 02/07/2023]
Abstract
Constructing bioactive guided bone regeneration (GBR) membranes that possess biological multifunctionality is becoming increasingly attractive and promising to meet higher requirements for bone healing. Given the biological responses following implantation, GBR process originates from an early inflammation-driven reaction adjacent to implanted membranes surface. However, to date there is relatively little attention paid to the critical immunoregulatory functions in traditionally designed GBR membranes. Herein, for the first time, we manipulate immunomodulatory properties of the widely-used native small intestinal submucosa (SIS) membrane by incorporating strontium-substituted nanohydroxyapatite coatings and/or IFN-γ to its surface. In vitro results reveal the obtained novel membrane SIS/SrHA/IFN-γ not only promote functions of endothelial cells and osteoblasts directly, but also energetically mediate a sequential M1-M2 macrophages transition to concurrently facilitate angiogenesis and osteogenesis. Moreover, in vivo outcomes of subcutaneous implantation and cranial defects repair further confirm its superior capacity to promote vascularization and in situ bone regeneration than pristine SIS through immunomodulation. These results demonstrate a sequential immunomodulatory strategy renders modified SIS membranes acting as a robust immunomodulator rather than a traditional barrier to significantly ameliorate in vivo GBR outcomes and hence provide important implications that may facilitate concerns on immunomodulatory properties for future GBR developments.
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Affiliation(s)
- Liang Yang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jinge Zhou
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Keda Yu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shuyi Yang
- Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Tingfang Sun
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yanhui Ji
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Zekang Xiong
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaodong Guo
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Zhang H, Liu K, Lu M, Liu L, Yan Y, Chu Z, Ge Y, Wang T, Qiu J, Bu S, Tang C. Micro/nanostructured calcium phytate coating on titanium fabricated by chemical conversion deposition for biomedical application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111402. [PMID: 33255005 DOI: 10.1016/j.msec.2020.111402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 07/26/2020] [Accepted: 08/11/2020] [Indexed: 01/01/2023]
Abstract
A bioactive micro/nanostructured calcium phytate coating was successfully prepared on titanium surfaces by chemical conversion deposition, mainly through hydrothermal treatment of a mixed solution of phytic acid and saturated calcium hydroxide solution. Ultraviolet radiation was carried out to improve the adhesion of the coating to the titanium substrate. Pure titanium with a sandblasted/acid-etched surface was used as the control group. The topography and chemical composition of the modified surfaces were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray spectroscopy (EDX), and static water contact angle measurement. A pull-off test was performed to measure the coating-to-substrate adhesion strength. Bovine serum albumin was used as a model to study the protein adsorption effect. Cells were cultured on titanium surfaces for 7 days in osteogenic differentiation medium, then the osteoblast compatibility in vitro were explored by alkaline phosphatase and alizarin red staining. After 1, 2, 4 and 8 wks of immediate implantation of titanium implants into the mandibles of New Zealand white rabbits, biological effects in vivo were researched by microcomputed tomography analysis and histological evaluation. The results indicated that the roughness and hydrophilicity of the modified surfaces with micro/nanostructure remarkably increased compared to those of the control group. The pull-off test showed the average adhesion strength at the coating-substrate interface to be higher than 13.56 ± 1.71 MPa. In addition, approximately 4.41 mg/L calcium ion was released from the calcium phytate micro/nano coatings to the local environment after 48 h of immersion. More importantly, the micro/nanostructure titanium substrates significantly promoted cellular differentiation in vitro and in vivo. After 8 wks, the bone implant contact ratio (BIC, %) of the modified implants was higher than that of the control group, at 94.09 ± 0.55% and 86.18 ± 1.99% (p < 0.05). Overall, this study provided new insights into the factors promoting early osseointegration of titanium alloys, which had great potential not only for dental implants but also for various other biomaterial applications.
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Affiliation(s)
- Hao Zhang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China; Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China; Department of Stomatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Kun Liu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China; Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China; Department of Implantology, Hefei Stomatological Hospital, Hefei Clinical School of Stomatology, Anhui Medical University, Hefei 230001, China
| | - Mengmeng Lu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China; Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Lin Liu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China; Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Yanzhe Yan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China
| | - Zhuangzhuang Chu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China
| | - Yuran Ge
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China
| | - Tao Wang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Jing Qiu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China; Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Shoushan Bu
- Department of Stomatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Chunbo Tang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China; Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China.
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10
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Weng T, Zhou L, Yi L, Zhang C, He Y, Wang T, Ju Y, Xu Y, Li L. Delivery of dimethyloxalylglycine in calcined bone calcium scaffold to improve osteogenic differentiation and bone repair. Biomed Mater 2020; 16. [PMID: 33022670 DOI: 10.1088/1748-605x/abbec7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 10/06/2020] [Indexed: 11/11/2022]
Abstract
As hypoxia plays a vital role in the angiogenic-osteogenic coupling, using proline hydroxylase inhibitors to manipulate hypoxia-inducible factors has become a strategy to improve the osteogenic properties of biomaterials. Dimethyloxallyl glycine (DMOG) is a 2-ketoglutarate analog, a small molecular compound that competes for 2-ketoglutaric acid to inhibit proline hydroxylase. In order to improve the osteogenic ability of calcined bone calcium (CBC), a new hypoxia-mimicking scaffold (DMOG/Collagen/CBC) was prepared by immersing it in the DMOG-Collagen solution, followed by freeze-drying. All coated CBC scaffolds retained the inherent natural porous architecture and showed excellent biocompatibility. A slow release of DMOG by the DMOG-loaded CBC scaffolds for up to one week was observed in in vitro experiments. Moreover, the DMOG/Collagen/CBC composite scaffold was found to significantly stimulate bone marrow stromal cells to express osteogenic and angiogenic genes in vitro. In addition, the osteogenic properties of three kinds of scaffolds, raw CBC, Collagen/CBC, and DMOG/Collagen/CBC, were evaluated by histology using the rabbit femoral condyle defect model. Histomorphometric analyses showed that the newly formed bone (BV/TV) in the DMOG/Collagen/CBC group was significantly higher than that of the Collagen/CBC group. However, immunostaining of CD31 and Runx2 expression between these two groups showed no significant difference at this time point. Our results indicate that DMOG-coated CBC can promote osteogenic differentiation and bone healing, and show potential for clinical application in bone tissue engineering.
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Affiliation(s)
- Tujun Weng
- Department of Orthopaedics, Fourth medical center of PLA General Hospital, Beijing, CHINA
| | - Liangliang Zhou
- Department of Orthopaedics, Fourth medical center of PLA General Hospital, Beijing, CHINA
| | - Lingxian Yi
- Department of ICU, The 306th hospital of PLA, Beijing, CHINA
| | - Chunli Zhang
- Department of Orthopaedics, Fourth medical center of PLA General Hospital, Beijing, CHINA
| | - Ying He
- Department of Orthopaedics, Fourth medical center of PLA General Hospital, Beijing, CHINA
| | - Tianqi Wang
- Department of Orthopaedics, Fourth medical center of PLA General Hospital, Beijing, CHINA
| | - Yue Ju
- Department of Orthopaedics, Fourth medical center of PLA General Hospital, Beijing, CHINA
| | - Ye Xu
- School of Mechanical Engineering and Automation, Beihang University, Beijing, CHINA
| | - Li Li
- Department of Orthopaedics, Fourth medical center of PLA General Hospital, Beijing, CHINA
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11
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JIANG H, ZHOU W, WANG B, TANG L. The effect of strontium modified rough titanium surface on biologic response of MC3T3-E1 cells. Dent Mater J 2020; 39:808-814. [DOI: 10.4012/dmj.2019-188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Huanhuan JIANG
- Department of Dental Implantology, Wuxi Stomatological Hospital
| | - Wenjuan ZHOU
- Department of Dental Implantology, Yantai Stomatological Hospital
| | - Binchen WANG
- Department of Dental Implantology, Yantai Stomatological Hospital
| | - Liqin TANG
- Department of Dental Implantology, Wuxi Stomatological Hospital
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12
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Montagna G, Cristofaro F, Fassina L, Bruni G, Cucca L, Kochen A, Divieti Pajevic P, Bragdon B, Visai L, Gerstenfeld L. An in vivo Comparison Study Between Strontium Nanoparticles and rhBMP2. Front Bioeng Biotechnol 2020; 8:499. [PMID: 32612980 PMCID: PMC7308719 DOI: 10.3389/fbioe.2020.00499] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 04/29/2020] [Indexed: 01/24/2023] Open
Abstract
The osteoinductive property of strontium was repeatedly proven in the last decades. Compelling in vitro data demonstrated that strontium hydroxyapatite nanoparticles exert a dual action, by promoting osteoblasts-driven matrix secretion and inhibiting osteoclasts-driven matrix resorption. Recombinant human bone morphogenetic protein 2 (rhBMP2) is a powerful osteoinductive biologic, used for the treatment of vertebral fractures and critically-sized bone defects. Although effective, the use of rhBMP2 has limitations due its recombinant morphogen nature. In this study, we examined the comparison between two osteoinductive agents: rhBMP2 and the innovative strontium-substituted hydroxyapatite nanoparticles. To test their effectiveness, we independently loaded Gelfoam sponges with the two osteoinductive agents and used the sponges as agent-carriers. Gelfoam are FDA-approved biodegradable medical devices used as delivery system for musculoskeletal defects. Their porous structure and spongy morphology make them attractive in orthopedic field. The abiotic characterization of the loaded sponges, involving ion release pattern and structure investigation, was followed by in vivo implantation onto the periosteum of healthy mice and comparison of the effects induced by each implant was performed. Abiotic analysis demonstrated that strontium was continuously released from the sponges over 28 days with a pattern similar to rhBMP2. Histological observations and gene expression analysis showed stronger endochondral ossification elicited by strontium compared to rhBMP2. Osteoclast activity was more inhibited by strontium than by rhBMP2. These results demonstrated the use of sponges loaded with strontium nanoparticles as potential bone grafts might provide better outcomes for complex fractures. Strontium nanoparticles are a novel and effective non-biologic treatment for bone injuries and can be used as novel powerful therapeutics for bone regeneration.
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Affiliation(s)
- Giulia Montagna
- Department of Molecular Medicine (DMM), Center for Health Technologies (CHT), UdR INSTM, University of Pavia, Pavia, Italy.,Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Francesco Cristofaro
- Department of Molecular Medicine (DMM), Center for Health Technologies (CHT), UdR INSTM, University of Pavia, Pavia, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Giovanna Bruni
- C.S.G.I. Department of Chemistry, Physical-Chemistry Section, University of Pavia, Pavia, Italy
| | - Lucia Cucca
- Department of Chemistry, University of Pavia, Pavia, Italy
| | - Alejandro Kochen
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA, United States
| | - Paola Divieti Pajevic
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA, United States
| | - Beth Bragdon
- Department of Orthopaedic Surgery, Boston University School of Medicine, Boston, MA, United States
| | - Livia Visai
- Department of Molecular Medicine (DMM), Center for Health Technologies (CHT), UdR INSTM, University of Pavia, Pavia, Italy.,Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy
| | - Louis Gerstenfeld
- Department of Orthopaedic Surgery, Boston University School of Medicine, Boston, MA, United States
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13
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Synthesis, characterization and in vitro biocompatibility study of strontium titanate ceramic: A potential biomaterial. J Mech Behav Biomed Mater 2020; 102:103494. [DOI: 10.1016/j.jmbbm.2019.103494] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 10/13/2019] [Accepted: 10/13/2019] [Indexed: 12/20/2022]
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14
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Chen Y, Liu Z, Jiang T, Zou X, Lei L, Yan W, Yang J, Li B. Strontium‐substituted biphasic calcium phosphate microspheres promoted degradation performance and enhanced bone regeneration. J Biomed Mater Res A 2019; 108:895-905. [DOI: 10.1002/jbm.a.36867] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Ying Chen
- Department of Prosthodontics Peking University School and Hospital of Stomatology; National Clinical Research Center for Oral Diseases; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Zhongning Liu
- Department of Prosthodontics Peking University School and Hospital of Stomatology; National Clinical Research Center for Oral Diseases; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Ting Jiang
- Department of Prosthodontics Peking University School and Hospital of Stomatology; National Clinical Research Center for Oral Diseases; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Xinyu Zou
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices Chongqing University of Science and Technology Chongqing China
| | - Lei Lei
- Department of Prosthodontics Peking University School and Hospital of Stomatology; National Clinical Research Center for Oral Diseases; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Wenjuan Yan
- First Clinical Division School and Hospital of Stomatology Peking University Beijing China
| | - Jingwen Yang
- Department of Prosthodontics Peking University School and Hospital of Stomatology; National Clinical Research Center for Oral Diseases; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Bo Li
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices Chongqing University of Science and Technology Chongqing China
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15
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Tsai SW, Yu WX, Hwang PA, Hsu YW, Hsu FY. Fabrication and Characteristics of PCL Membranes Containing Strontium-Substituted Hydroxyapatite Nanofibers for Guided Bone Regeneration. Polymers (Basel) 2019; 11:polym11111761. [PMID: 31717839 PMCID: PMC6918198 DOI: 10.3390/polym11111761] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/18/2019] [Accepted: 10/24/2019] [Indexed: 12/24/2022] Open
Abstract
Poly(ε-caprolactone) (PCL) membranes have been widely used in guided tissue regeneration (GTR) and guided bone regeneration (GBR). In addition, hydroxyapatite is the major inorganic component and an essential composition of hard bone and teeth. Recently, numerous studies have demonstrated that strontium-substituted hydroxyapatite (SrHA) not only enhances osteogenesis but also inhibits adipogenesis of mesenchymal stem cells. Therefore, SrHA incorporated into PCL could be an alternative material for GBR. In this study, strontium-substituted hydroxyapatite nanofibers (SrHANFs) were fabricated by a sol-gel route followed by electrospinning. We then fabricated PCL-SrHANF membranes as cell culture substrates and assessed the cellular behavior of osteoblast-like cells. Based on the observations of alkaline phosphatase (ALP) activity, bone sialoprotein (BSP) and osteocalcin (OCN) immunofluorescence staining, and Alizarin Red-S staining of cells cultured on the PCL-SrHANF and PCL membranes, we concluded that SrHANFs can promote the differentiation and mineralization of osteoblast-like cells and that PCL-SrHANF membranes have potential for GBR applications.
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Affiliation(s)
- Shiao-Wen Tsai
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan 303, Taiwan;
- Department of Periodontics, Chang Gung Memorial Hospital, Taipei 105, Taiwan
| | - Wen-Xin Yu
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 202, Taiwan; (W.-X.Y.); (P.-A.H.); (Y.-W.H.)
| | - Pai-An Hwang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 202, Taiwan; (W.-X.Y.); (P.-A.H.); (Y.-W.H.)
| | - Yu-Wei Hsu
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 202, Taiwan; (W.-X.Y.); (P.-A.H.); (Y.-W.H.)
| | - Fu-Yin Hsu
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 202, Taiwan; (W.-X.Y.); (P.-A.H.); (Y.-W.H.)
- Correspondence:
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16
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Ding X, Li X, Li C, Qi M, Zhang Z, Sun X, Wang L, Zhou Y. Chitosan/Dextran Hydrogel Constructs Containing Strontium-Doped Hydroxyapatite with Enhanced Osteogenic Potential in Rat Cranium. ACS Biomater Sci Eng 2019; 5:4574-4586. [DOI: 10.1021/acsbiomaterials.9b00584] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | | | | | | | - Zhe Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
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17
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Ye H, Zhu J, Deng D, Jin S, Li J, Man Y. Enhanced osteogenesis and angiogenesis by PCL/chitosan/Sr-doped calcium phosphate electrospun nanocomposite membrane for guided bone regeneration. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:1505-1522. [PMID: 31322979 DOI: 10.1080/09205063.2019.1646628] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Membranes play pivotal role in guided bone regeneration (GBR) technique for reconstruction alveolar bone. GBR membrane that is able to stimulate both osteogenic and angiogenic differentiation of cells may be more effective in clinic practice. Herein, we fabricated the Sr-doped calcium phosphate/polycaprolactone/chitosan (Sr-CaP/PCL/CS) nanohybrid fibrous membrane by incorporating 20 wt% bioactive Sr-CaP nanoparticles into PCL/CS matrix via one-step electrospinning method, in order to endow the membrane with stimulation of osteogenesis and angiogenesis. The physicochemical properties, mechanical properties, Sr2+ release behavior, and the membrane stimulate bone mesenchymal stem cell (BMSCs) differentiation were evaluated in comparison with PCL/CS and CaP/PCL/CS membranes. The SEM images revealed that the nanocomposite membrane mimicked the extracellular matrix structure. The release curve presented a 28-day long continuous release of Sr2+ and concentration which was certified in an optimal range for positive biological effects at each timepoint. The in vitro cell culture experiments certified that the Sr-CaP/PCL/CS membrane enjoyed excellent biocompatibility and remarkably promoted rat bone mesenchymal stem cell (BMSCs) adhesion and proliferation. In terms of osteogenic differentiation, BMSCs seeded on the Sr-CaP/PCL/CS membrane showed a higher ALP activity level and a better matrix mineralization. What's more, the synergism of the Sr2+ and CaP from the Sr-CaP/PCL/CS membrane enhanced BMSCs angiogenic differentiation, herein resulting in the largest VEGF secretion amount. Consequently, the Sr-CaP/PCL/CS nanohybrid electrospun membrane has promising applications in GBR.
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Affiliation(s)
- Huilin Ye
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu , China
| | - Junjin Zhu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu , China
| | - Dan Deng
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University , Chengdu , China
| | - Shue Jin
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University , Chengdu , China
| | - Jidong Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University , Chengdu , China
| | - Yi Man
- Department of Implantology, State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University , Chengdu , China
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18
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Glancing Angle Deposition of Zn-Doped Calcium Phosphate Coatings by RF Magnetron Sputtering. COATINGS 2019. [DOI: 10.3390/coatings9040220] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Zn-substituted hydroxyapatite with antibacterial effect was used in radiofrequency (RF) magnetron deposition of calcium phosphate coating onto Ti- and Si-inclined substrates. The development of surface nanopatterns for direct bacteria killing is a growing area of research. Here, we combined two approaches for possible synergetic antibacterial effect by manufacturing a patterned surface of Zn-doped calcium phosphate using glancing angle deposition (GLAD) technique. A significant change in the coating morphology was revealed with a substrate tilt angle of 80°. It was shown that an increase in the coating crystallinity for samples deposited at a tilt angle of 80° corresponds to the formation of crystallites in the bulk structure of the thin film. The variation in the coating thickness, uniformity, and influence of sputtered species energy on Si substrates was analyzed. Coatings deposited on tilted samples exhibit higher scratch resistance. The coating micro- and nano-roughness and overall morphology depended on the tilt angle and differently affected the rough Ti and smooth Si surfaces. GLAD of complex calcium phosphate material can lead to the growth of thin films with significantly changed morphological features and can be utilized to create self-organized nanostructures on various types of surfaces.
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19
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Li J, Liu X, Park S, Miller AL, Terzic A, Lu L. Strontium-substituted hydroxyapatite stimulates osteogenesis on poly(propylene fumarate) nanocomposite scaffolds. J Biomed Mater Res A 2019; 107:631-642. [PMID: 30422387 PMCID: PMC7224963 DOI: 10.1002/jbm.a.36579] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 10/09/2018] [Accepted: 11/05/2018] [Indexed: 12/11/2022]
Abstract
Incorporation of hydroxyapatite (HA) into polymer networks is a promising strategy to enhance the mechanical properties and osteoinductivity of the composite scaffolds for bone tissue engineering. In this study, we designed a group of nanocomposite scaffolds based on cross-linkable poly(propylene fumarate) (PPF) and 30 wt % strontium-hydroxyapatite (Sr-HA) nanoparticles. Four different Sr contents [Sr:(Sr + Ca), molar ratio] in the Sr-HA particles were studied: 0% (HA), 5% (Sr5-HA), 10% (Sr10-HA), and 20% (Sr20-HA). Two-dimensional (2D) disks were prepared using a thermal crosslinking method. The structure and surface morphology of different Sr-HA and PPF/Sr-HA composites were characterized using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM), and atomic force microscopy (AFM). To detect cellular responses in vitro, MC3T3-E1 cells were seeded and cultured on the different PPF/Sr-HA composite disks. Cell morphology after 24 h and 5 days were imaged using Live/Dead live cell staining and SEM, respectively. Cell proliferation was quantified using an MTS assay at 1, 4, and 7 days. Osteogenic differentiation of the cells was examined by alkaline phosphatase (ALP) staining at 10 days and quantified using ALP activity and osteocalcin assays at 7, 14, and 21 days. The sizes of the HA, Sr5-HA, Sr10-HA, and Sr20-HA particles were mainly between 10 × 20 nm and 10 × 250 nm, and these nanoparticles were dispersed or clustered in the composite scaffolds. in vitro cell studies showed that the PPF/Sr10-HA scaffold was significantly better than the other three groups (PPF/HA, PPF/Sr5-HA, and PPF/Sr20-HA) in supporting MC3T3-E1 cell adhesion, proliferation, and differentiation. PPF/Sr10-HA may, therefore, serve as a promising scaffold material for bone tissue engineering. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 631-642, 2019.
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Affiliation(s)
- Jingfeng Li
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota 55905, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota 55905, USA
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China
| | - Xifeng Liu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota 55905, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota 55905, USA
| | - Sungjo Park
- Department of Cardiovascular Diseases and Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota 55905, USA
| | - A. Lee Miller
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota 55905, USA
| | - Andre Terzic
- Department of Cardiovascular Diseases and Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota 55905, USA
| | - Lichun Lu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota 55905, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota 55905, USA
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20
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Tsai SW, Yu WX, Hwang PA, Huang SS, Lin HM, Hsu YW, Hsu FY. Fabrication and Characterization of Strontium-Substituted Hydroxyapatite-CaO-CaCO₃ Nanofibers with a Mesoporous Structure as Drug Delivery Carriers. Pharmaceutics 2018; 10:pharmaceutics10040179. [PMID: 30297674 PMCID: PMC6321556 DOI: 10.3390/pharmaceutics10040179] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/04/2018] [Accepted: 10/06/2018] [Indexed: 11/16/2022] Open
Abstract
Hydroxyapatite (HAp) is the main inorganic component and an essential part of hard bone and teeth. Due to its excellent biocompatibility, bioactivity, and osteoconductivity, synthetic HAp has been widely used as a bone substitute, cell carrier, and therapeutic gene or drug carrier. Recently, numerous studies have demonstrated that strontium-substituted hydroxyapatite (SrHAp) not only enhances osteogenesis but also inhibits adipogenesis in mesenchymal stem cells. Mesoporous SrHAp has been successfully synthesized via a traditional template-based process and has been found to possess better drug loading and release efficiencies than SrHAp. In this study, strontium-substituted hydroxyapatite-CaO-CaCO₃ nanofibers with a mesoporous structure (mSrHANFs) were fabricated using a sol⁻gel method followed by electrospinning. X-ray diffraction analysis revealed that the contents of CaO and CaCO₃ in the mSrHANFs decreased as the doping amount of Sr increased. Scanning electron microscopy (SEM) images showed that the average diameter of the mSrHANFs was approximately 200~300 nm. The N₂ adsorption⁻desorption isotherms demonstrated that the mSrHANFs possessed a mesoporous structure and that the average pore size was approximately 20~25 nm. Moreover, the mSrHANFs had excellent drug- loading efficiency and could retard the burst release of tetracycline (TC) to maintain antibacterial activity for over 3 weeks. Hence, mSrHANFs have the potential to be used as drug carriers in bone tissue engineering.
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Affiliation(s)
- Shiao-Wen Tsai
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan City 33302, Taiwan.
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Linko 33305, Taiwan.
- Department of Periodontics, Chang Gung Memorial Hospital, Taipei 10507, Taiwan.
| | - Wen-Xin Yu
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung City 20224, Taiwan.
| | - Pai-An Hwang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung City 20224, Taiwan.
| | - Sheng-Siang Huang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung City 20224, Taiwan.
| | - Hsiu-Mei Lin
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung City 20224, Taiwan.
| | - Yu-Wei Hsu
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung City 20224, Taiwan.
| | - Fu-Yin Hsu
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung City 20224, Taiwan.
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21
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Yan S, Feng L, Zhu Q, Yang W, Lan Y, Li D, Liu Y, Xue W, Guo R, Wu G. Controlled Release of BMP-2 from a Heparin-Conjugated Strontium-Substituted Nanohydroxyapatite/Silk Fibroin Scaffold for Bone Regeneration. ACS Biomater Sci Eng 2018; 4:3291-3303. [DOI: 10.1021/acsbiomaterials.8b00459] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Shina Yan
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Longbao Feng
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Qiyu Zhu
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Wei Yang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Yong Lan
- Beogene Biotech (Guangzhou) Co., Ltd., Guangzhou 510663, China
| | - Dan Li
- Beogene Biotech (Guangzhou) Co., Ltd., Guangzhou 510663, China
| | - Yu Liu
- Guangzhou Chuangseed Biomedical Materials Co., Ltd., Guangzhou 510663, China
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Rui Guo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Gang Wu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije University Amsterdam, Gustav mahlerlaan 3004, 1081 LA Amsterdam, the Netherlands
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22
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Köse S, Kankilic B, Gizer M, Ciftci Dede E, Bayramli E, Korkusuz P, Korkusuz F. Stem Cell and Advanced Nano Bioceramic Interactions. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1077:317-342. [PMID: 30357696 DOI: 10.1007/978-981-13-0947-2_17] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Bioceramics are type of biomaterials generally used for orthopaedic applications due to their similar structure with bone. Especially regarding to their osteoinductivity and osteoconductivity, they are used as biodegradable scaffolds for bone regeneration along with mesenchymal stem cells. Since chemical properties of bioceramics are important for regeneration of tissue, physical properties are also important for cell proliferation. In this respect, several different manufacturing methods are used for manufacturing nano scale bioceramics. These nano scale bioceramics are used for regeneration of bone and cartilage both alone or with other types of biomaterials. They can also act as carrier for the delivery of drugs in musculoskeletal infections without causing any systemic toxicity.
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Affiliation(s)
- Sevil Köse
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Atilim University, Ankara, Turkey.
| | - Berna Kankilic
- Head of Certification, Directorate of Directives, Turkish Standards Institution, Ankara, Turkey
| | - Merve Gizer
- Department of Bioengineering, Hacettepe University, Ankara, Turkey
| | - Eda Ciftci Dede
- Department of Bioengineering, Hacettepe University, Ankara, Turkey
| | - Erdal Bayramli
- Department of Chemistry, Middle East Technical University, Ankara, Turkey
| | - Petek Korkusuz
- Department of Histology and Embryology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Feza Korkusuz
- Department of Sports Medicine, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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