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Chopra V, Thomas J, Kaushik S, Rajput S, Guha R, Mondal B, Naskar S, Mandal D, Chauhan G, Chattopadhyay N, Ghosh D. Injectable Bone Cement Reinforced with Gold Nanodots Decorated rGO-Hydroxyapatite Nanocomposites, Augment Bone Regeneration. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2204637. [PMID: 36642859 DOI: 10.1002/smll.202204637] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 12/12/2022] [Indexed: 06/17/2023]
Abstract
Interest in the development of new generation injectable bone cements having appropriate mechanical properties, biodegradability, and bioactivity has been rekindled with the advent of nanoscience. Injectable bone cements made with calcium sulfate (CS) are of significant interest, owing to its compatibility and optimal self-setting property. Its rapid resorption rate, lack of bioactivity, and poor mechanical strength serve as a deterrent for its wide application. Herein, a significantly improved CS-based injectable bone cement (modified calcium sulfate termed as CSmod ), reinforced with various concentrations (0-15%) of a conductive nanocomposite containing gold nanodots and nanohydroxyapatite decorated reduced graphene oxide (rGO) sheets (AuHp@rGO), and functionalized with vancomycin, is presented. The piezo-responsive cement exhibits favorable injectability and setting times, along with improved mechanical properties. The antimicrobial, osteoinductive, and osteoconductive properties of the CSmod cement are confirmed using appropriate in vitro studies. There is an upregulation of the paracrine signaling mediated crosstalk between mesenchymal stem cells and human umbilical vein endothelial cells seeded on these cements. The ability of CSmod to induce endothelial cell recruitment and augment bone regeneration is evidenced in relevant rat models. The results imply that the multipronged activity exhibited by the novel-CSmod cement would be beneficial for bone repair.
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Affiliation(s)
- Vianni Chopra
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali, Punjab, 140306, India
- School of Engineering and Sciences, Tecnologico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Nuevo León, Monterrey, 64849, Mexico
| | - Jijo Thomas
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali, Punjab, 140306, India
| | - Swati Kaushik
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali, Punjab, 140306, India
| | - Swati Rajput
- Division of Endocrinology and Centre for Research in ASTHI, CSIR-Central Drug Research Institute, Council of Scientific and Industrial Research, Lucknow, Uttar Pradesh, 226031, India
| | - Rajdeep Guha
- Laboratory Animal Facility, CSIR-Central Drug Research Institute, Council of Scientific and Industrial Research, Lucknow, Uttar Pradesh, 226031, India
| | - Bidya Mondal
- Quantum Materials and Devices Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali, Punjab, 140306, India
| | - Sudip Naskar
- Quantum Materials and Devices Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali, Punjab, 140306, India
| | - Dipankar Mandal
- Quantum Materials and Devices Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali, Punjab, 140306, India
| | - Gaurav Chauhan
- School of Engineering and Sciences, Tecnologico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Nuevo León, Monterrey, 64849, Mexico
| | - Naibedya Chattopadhyay
- Division of Endocrinology and Centre for Research in ASTHI, CSIR-Central Drug Research Institute, Council of Scientific and Industrial Research, Lucknow, Uttar Pradesh, 226031, India
| | - Deepa Ghosh
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali, Punjab, 140306, India
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Kwiecień K, Pudełko I, Knap K, Reczyńska-Kolman K, Krok-Borkowicz M, Ochońska D, Brzychczy-Włoch M, Pamuła E. Insight in Superiority of the Hydrophobized Gentamycin in Terms of Antibiotics Delivery to Bone Tissue. Int J Mol Sci 2022; 23:ijms232012077. [PMID: 36292955 PMCID: PMC9603325 DOI: 10.3390/ijms232012077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/06/2022] [Accepted: 10/07/2022] [Indexed: 11/16/2022] Open
Abstract
Bone infections are a serious problem to cure, as systemic administration of antibiotics is not very effective due to poor bone vascularization. Therefore, many drug delivery systems are investigated to solve this problem. One of the potential solutions is the delivery of antibiotics from poly(L-actide-co-glycolide) (PLGA) nanoparticles suspended in the gellan gum injectable hydrogel. However, the loading capacity and release kinetics of the system based on hydrophilic drugs (e.g., gentamycin) and hydrophobic polymers (e.g., PLGA) may not always be satisfying. To solve this problem, we decided to use hydrophobized gentamycin obtained by ion-pairing with dioctyl sulfosuccinate sodium salt (AOT). Herein, we present a comparison of the PLGA nanoparticles loaded with hydrophobic or hydrophilic gentamycin and suspended in the hydrogel in terms of physicochemical properties, drug loading capacity, release profiles, cytocompatibility, and antibacterial properties. The results showed that hydrophobic gentamycin may be combined in different formulations with the hydrophilic one and is superior in terms of encapsulation efficiency, drug loading, release, and antibacterial efficacy with no negative effect on the NPs morphology or hydrogel features. However, the cytocompatibility of hydrophobic gentamycin might be lower, consequently more extensive study on its biological properties should be provided to evaluate a safe dose.
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Affiliation(s)
- Konrad Kwiecień
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
- Correspondence: (K.K.); (E.P.)
| | - Iwona Pudełko
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Karolina Knap
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Katarzyna Reczyńska-Kolman
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Małgorzata Krok-Borkowicz
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Dorota Ochońska
- Department of Molecular Medical Microbiology, Chair of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 18 Czysta Street, 31-121 Kraków, Poland
| | - Monika Brzychczy-Włoch
- Department of Molecular Medical Microbiology, Chair of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 18 Czysta Street, 31-121 Kraków, Poland
| | - Elżbieta Pamuła
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
- Correspondence: (K.K.); (E.P.)
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Han X, Hu J, Zhao W, Lu H, Dai J, He Q. Hexapeptide induces M2 macrophage polarization via the JAK1/STAT6 pathway to promote angiogenesis in bone repair. Exp Cell Res 2022; 413:113064. [PMID: 35167829 DOI: 10.1016/j.yexcr.2022.113064] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 02/08/2022] [Accepted: 02/11/2022] [Indexed: 01/14/2023]
Abstract
Angiogenesis is essential for successful bone defect repair. In normal tissue repair, the physiological inflammatory response is the main regulator of angiogenesis through the activity of macrophages and the cytokines secreted by them. In particular, M2 macrophages which secrete high levels of PDGF-BB are typically considered to promote angiogenesis. A hexapeptide [WKYMVm, (Trp-Lys-Tyr-Met-Val-D-Met-NH2)] has been reported to modulate inflammatory activities. However, the underlying mechanisms by which WKYMVm regulates macrophages remain unclear. In this study, the possible involvement by which WKYMVm induces the polarization of macrophages and affects their behaviors was evaluated. In vitro results showed that macrophages were induced to an M2 rather than M1 phenotype and the M2 phenotype was enhanced by WKYMVm through activation of the JAK1/STAT6 signaling pathway. It was also found that WKYMVm played an important role in the PDGF-BB production increase and proangiogenic abilities in M2 macrophages. Consistent with the results in vitro, the elevated M2/M0 ratio induced by WKYMVm enhanced the formation of new blood vessels in a femoral defect mouse model. These findings suggest that WKYMVm could be a promising alternative strategy for angiogenesis in bone repair by inducing M2 macrophage polarization.
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Affiliation(s)
- Xinyun Han
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing, 400715, China; Department of Orthopedics, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Junxian Hu
- Department of Orthopedics, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Wenbo Zhao
- Department of Orthopedics, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Hongwei Lu
- Department of Orthopedics, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Jingjin Dai
- Department of Biomedical Materials Science, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Qingyi He
- Department of Orthopedics, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China.
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Xu R, Lian X, Zhao L, Wei Y, Hou D, Niu B, Zhang Q, Huang D, Li F, Gao S. The effect of calcium phosphate and silk fibroin nanofiber tuning on properties of calcium sulfate bone cements. Biomed Mater 2020; 16:015009. [DOI: 10.1088/1748-605x/aba7d4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Alshemary AZ, Pazarçeviren EA, Dalgic AD, Tezcaner A, Keskin D, Evis Z. Nanocrystalline Zn 2+ and SO 42- binary doped fluorohydroxyapatite: A novel biomaterial with enhanced osteoconductive and osteoinconductive properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109884. [PMID: 31500005 DOI: 10.1016/j.msec.2019.109884] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 05/28/2019] [Accepted: 06/11/2019] [Indexed: 12/13/2022]
Abstract
In this study, we have successfully doped hydroxyapatite (HA) with zinc (Zn2+), sulphate (SO42-) and fluoride (F-) ions to develop a new composition of bioceramic, Ca10-x Znx(PO4)6-y(SO4)y(OH)2-z-yFz(SO4)y, (x = 0, 0.2, 0.6, 1.0, y = 0, 0.5 and z = 0,1.0 mol), using wet precipitation method. The obtained materials were analysed using XRD, FTIR, FESEM, and XPS techniques to investigate the phase purity, particle morphology and elemental composition, respectively. A model anticancer drug (Doxorubicin, DOX) was loaded onto the surface of the Zn/SO4-FHA materials. About 100% loading of DOX with a controlled release profile was obtained. Degradation of materials in Simulated body fluid (SBF) was greatly improved with the incorporation of Zn2+/SO42- ions in comparison to HA/FHA, which makes it highly bioactive materials. In vitro cell viability and adhesion of Human fetal osteoblast (hFOB) cell were investigated. Cell viability has demonstrated that the hFOB cells proliferated at a high rate on Zn/SO4-FHA materials, confirming the in vitro biocompatibility of the materials. Alkaline phosphatase (ALP) activity and intracellular calcium deposition of hFOB cells seeded on 1ZnSO4-FHA disc surface was statistically higher than observed on pure HA and FHA discs, indicating that hFOB cells differentiated into mature osteoblasts on 1Zn/SO4-FHA disc surfaces. Taken together, our results suggest that HA substituted by (Zn2+, 0.2 mol), (SO42-, 0.5 mol) and (F-, 1 mol) (1Zn/SO4-FHA) material was a promising material for hard tissue scaffolds.
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Affiliation(s)
- Ammar Z Alshemary
- Department of Biomedical Engineering, Faculty of Engineering, Karabuk University, Karabuk 78050, Turkey
| | | | - Ali Deniz Dalgic
- Engineering Sciences, Middle East Technical University, Ankara 06800, Turkey
| | - Ayşen Tezcaner
- Engineering Sciences, Middle East Technical University, Ankara 06800, Turkey
| | - Dilek Keskin
- Engineering Sciences, Middle East Technical University, Ankara 06800, Turkey
| | - Zafer Evis
- Engineering Sciences, Middle East Technical University, Ankara 06800, Turkey.
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Baranes D, Kurtzman GM. Biphasic Calcium Sulfate as an Alternative Grafting Material in Various Dental Applications. J ORAL IMPLANTOL 2019; 45:247-255. [PMID: 31042446 DOI: 10.1563/aaid-joi-d-18-00306] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Various grafting materials have been used in oral and periodontal surgeries to augment and rebuild bone intraorally. Calcium sulfate, a synthetic material, also known as an alloplast, has been used for decades in orthopedics, plastic surgery, and oncologic and maxillofacial surgeries for the treatment of osseous deficiencies caused by trauma or inflammation. Biphasic calcium sulfate provides benefits as a short-term space maintainer. Use of biphasic calcium sulfate as the sole material are limited to relatively small osseous defects surrounded by at least 3 bony walls (eg, extraction sockets). Thus, for augmenting large and more complex bone deficiencies Bond Apatite, a composite graft formulation, is indicated. This work will review the various clinical applications of Bond Apatite as an alternative to other graft materials.
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Liu L, Yang J, Men K, He Z, Luo M, Qian Z, Wei X, Wei Y. Current Status of Nonviral Vectors for Gene Therapy in China. Hum Gene Ther 2018; 29:110-120. [PMID: 29320893 DOI: 10.1089/hum.2017.226] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- Li Liu
- Laboratory for Aging Research and Nanotoxicology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, P.R. China
| | - Jingyun Yang
- Laboratory for Aging Research and Nanotoxicology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, P.R. China
| | - Ke Men
- Laboratory for Aging Research and Nanotoxicology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, P.R. China
| | - Zhiyao He
- Laboratory for Aging Research and Nanotoxicology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, P.R. China
| | - Min Luo
- Laboratory for Aging Research and Nanotoxicology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, P.R. China
| | - Zhiyong Qian
- Laboratory for Aging Research and Nanotoxicology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, P.R. China
| | - Xiawei Wei
- Laboratory for Aging Research and Nanotoxicology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, P.R. China
| | - Yuquan Wei
- Laboratory for Aging Research and Nanotoxicology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, P.R. China
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García-González CA, Barros J, Rey-Rico A, Redondo P, Gómez-Amoza JL, Concheiro A, Alvarez-Lorenzo C, Monteiro FJ. Antimicrobial Properties and Osteogenicity of Vancomycin-Loaded Synthetic Scaffolds Obtained by Supercritical Foaming. ACS APPLIED MATERIALS & INTERFACES 2018; 10:3349-3360. [PMID: 29313664 DOI: 10.1021/acsami.7b17375] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Advanced porous synthetic scaffolds are particularly suitable for regeneration of damaged tissues, but there is the risk of infections due to the colonization of microorganisms, forming biofilms. Supercritical foaming is an attractive processing method to prepare bone scaffolds, regulating simultaneously the porosity and loading of bioactive compounds without loss of activity. In this work, scaffolds made of poly-ε-caprolactone (50 kDa), containing chitosan and an antimicrobial agent (vancomycin), were processed by supercritical CO2 foaming for bone regeneration purposes. The obtained scaffolds showed a suitable combination of morphological (porosity, pore size distribution, and interconnectivity), time-dependent in vitro vancomycin release behavior and biological properties (cell viability and proliferation, osteodifferentiation, and tissue-scaffold integration). The scaffolds sustained vancomycin release for more than 2 weeks. Finally, the antimicrobial activity of the scaffolds was tested against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria after 24 h of incubation with full growth inhibition for S. aureus.
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Affiliation(s)
- Carlos A García-González
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela , E-15782 Santiago de Compostela, Spain
| | - Joana Barros
- FEUP-Faculdade de Engenharia, Universidade do Porto, I3S-Instituto de Investigação e Inovação em Saúde, and INEB-Instituto de Engenharia Biomédica , Porto 4200-135, Portugal
| | - Ana Rey-Rico
- Center of Experimental Orthopaedics, Saarland University Medical Center , Homburg 66421, Germany
| | - Pablo Redondo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela , E-15782 Santiago de Compostela, Spain
| | - José L Gómez-Amoza
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela , E-15782 Santiago de Compostela, Spain
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela , E-15782 Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela , E-15782 Santiago de Compostela, Spain
| | - Fernando J Monteiro
- FEUP-Faculdade de Engenharia, Universidade do Porto, I3S-Instituto de Investigação e Inovação em Saúde, and INEB-Instituto de Engenharia Biomédica , Porto 4200-135, Portugal
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Wei Y, Gao L, Wang L, Shi L, Wei E, Zhou B, Zhou L, Ge B. Polydopamine and peptide decorated doxorubicin-loaded mesoporous silica nanoparticles as a targeted drug delivery system for bladder cancer therapy. Drug Deliv 2017; 24:681-691. [PMID: 28414557 PMCID: PMC8241003 DOI: 10.1080/10717544.2017.1309475] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
We reported a simple polydopamine (PDA)-based surface modification method to prepare novel targeted doxorubicin-loaded mesoporous silica nanoparticles and peptide CSNRDARRC conjugation (DOX-loaded MSNs@PDA-PEP) for enhancing the therapeutic effects on bladder cancer. Drug-loaded NPs were characterized in terms of size, size distribution, zeta potential, transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area and drug loading content. In vitro drug release indicated that DOX-loaded MSNs@PDA and MSNs@PDA-PEP had similar release kinetic profiles of DOX. The PDA coating well controlled DOX release and was highly sensitive to pH value. Confocal laser scanning microscopy (CLSM) showed that drug-loaded MSNs could be internalized by human bladder cancer cell line HT-1376, and DOX-loaded MSNs@PDA-PEP had the highest cellular uptake efficiency due to ligand-receptor recognition. The antitumor effects of DOX-loaded nanoparticles were evaluated by the MTT assay in vitro and by a xenograft tumor model in vivo, demonstrating that targeted nanocarriers DOX-loaded MSNs@PDA-PEP were significantly superior to free DOX and DOX-loaded MSNs@PDA. The novel DOX-loaded MSNs@PDA-PEP, which specifically recognized HT-1376 cells, can be used as a potential targeted drug delivery system for bladder cancer therapy.
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Affiliation(s)
- Yi Wei
- a Department of Urology , Affiliated Hospital of Guilin Medical University , Guilin , P.R. China
| | - Li Gao
- a Department of Urology , Affiliated Hospital of Guilin Medical University , Guilin , P.R. China
| | - Lu Wang
- b College of Biotechnology , and
| | - Lin Shi
- c Pharmaceutical College, Guilin Medical University , Guilin , P.R. China
| | - Erdong Wei
- a Department of Urology , Affiliated Hospital of Guilin Medical University , Guilin , P.R. China
| | - Baotong Zhou
- a Department of Urology , Affiliated Hospital of Guilin Medical University , Guilin , P.R. China
| | - Li Zhou
- a Department of Urology , Affiliated Hospital of Guilin Medical University , Guilin , P.R. China
| | - Bo Ge
- a Department of Urology , Affiliated Hospital of Guilin Medical University , Guilin , P.R. China
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Cheng T, Qu H, Zhang G, Zhang X. Osteogenic and antibacterial properties of vancomycin-laden mesoporous bioglass/PLGA composite scaffolds for bone regeneration in infected bone defects. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:1935-1947. [PMID: 29113502 DOI: 10.1080/21691401.2017.1396997] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Tao Cheng
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Haiyun Qu
- Analysis and Testing Center for Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
| | - Guoyou Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xianlong Zhang
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Tam DY, Fremes SE. Steel and bones: A perfect union? J Thorac Cardiovasc Surg 2017; 154:941-942. [PMID: 28826160 DOI: 10.1016/j.jtcvs.2017.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 05/05/2017] [Indexed: 11/19/2022]
Affiliation(s)
- Derrick Y Tam
- Division of Cardiac Surgery, Schulich Heart Centre, Department of Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Stephen E Fremes
- Division of Cardiac Surgery, Schulich Heart Centre, Department of Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
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Zhu W, Zhao Y, Ma Q, Wang Y, Wu Z, Weng X. 3D-printed porous titanium changed femoral head repair growth patterns: osteogenesis and vascularisation in porous titanium. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:62. [PMID: 28251470 DOI: 10.1007/s10856-017-5862-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 01/30/2017] [Indexed: 06/06/2023]
Abstract
Osteonecrosis of the femoral head (ONFH) is a major cause of morbidity, and total hip arthroplasty is both traumatic and expensive. Here, we created a gelatine scaffold embedded in uniquely shaped, 3D-printed porous titanium parts, which could attract and promote the proliferation of osteoblasts as well as bone regeneration, as the extracellular matrix (ECM) does in vivo. Interestingly, after hybridisation with platelets, the scaffold exhibited a low yet considerable rate of stable, safe and long-term growth factor release. Additionally, a novel ONFH model was constructed and verified. Scaffolds implanted in this model were found to accelerate bone repair. In conclusion, our scaffold successfully simulates the ECM and considerably accelerates bone regeneration, in which platelets play an indispensable role. We believe that platelets should be emphasised as carriers that may be employed to transport drugs, cytokines and other small molecules to target locations in vivo. In addition, this novel scaffold is a useful material for treating ONFH. An overview of the novel scaffold mimicking the extracellular environment in bone repair. a and b: A gelatine scaffold was cross-linked and freeze-dried within 3D-printed porous titanium. c: Platelets were coated onto the gelatine microscaffold after freeze-drying platelet-rich plasma. d: The microscaffold supported the migration of cells into the titanium pores and their subsequent growth, while the platelets slowly released cell factors, exerting bioactivity.
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Affiliation(s)
- Wei Zhu
- Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Yan Zhao
- Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Qi Ma
- Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Yingjie Wang
- Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Zhihong Wu
- Beijing Key Laboratory for Genetic Research of Bone and Joint Disease, Central Laboratory, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Beijing, 100730, P.R. China.
| | - Xisheng Weng
- Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China.
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