101
|
Su W, Ma X, Sun Z, Yi Z, Cui X, Chen G, Chen X, Guo B, Li X. RhBMP-2 and concomitant rapid material degradation synergistically promote bone repair and regeneration with collagen-hydroxyapatite nanocomposites. J Mater Chem B 2018; 6:4338-4350. [PMID: 32254509 DOI: 10.1039/c8tb00405f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The effective treatment of bone defects is still a great challenge in clinical practice. Synthetic bone-grafting substitutes of composition and structure analogous to bone as well as incorporated with growth factors are considered to be a promising solution. In this study, a collagen-hydroxyapatite (CHA) nanocomposite scaffold was developed by collagen self-assembly with simultaneous HA synthesis. The physicochemical properties such as morphology, inorganic phase, thermal decomposition, specific surface area and pore size distribution were characterized. The osteogenicity of CHA in the absence or presence of recombinant human bone morphogenetic protein-2 (rhBMP-2) was assessed both by cell culturing and animal implantation experiments. The gene expression results showed that the osteogenic differentiation capacity of rat bone mesenchymal stem cells (rBMSCs) has been enhanced both by CHA and rhBMP-2. The efficient bone regeneration of femoral defects in rabbits was achieved with CHA and CHA pre-absorbed rhBMP-2 (CHA/B), confirmed by micro-computed tomography measurements, histological observation and immunohistochemical analyses. The CHA nanocomposite was completely degraded within 8 weeks and replaced by new bone. It was found that rhBMP-2 not only accelerated and enhanced bone formation, but also expedited the degradation of CHA. It is believed that the rhBMP-2 and concomitant rapid material degradation synergistically promote bone repair and regeneration with CHA. The biodegradation behavior of CHA in the presence of rhBMP-2 can be further investigated to gain an in-depth understanding of the complex interplays among biomaterials, growth factors and their target cells. The relevant knowledge will facilitate the search for a reasonable, safe and efficient methodology for the introduction of growth factors to biomaterials so as to achieve satisfactory tissue regeneration.
Collapse
Affiliation(s)
- Wen Su
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, Sichuan, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
102
|
Li M, Zhang C, Mao Y, Zhong Y, Zhao J. A Cell-Engineered Small Intestinal Submucosa-Based Bone Mimetic Construct for Bone Regeneration. Tissue Eng Part A 2018; 24:1099-1111. [PMID: 29318958 DOI: 10.1089/ten.tea.2017.0407] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Extracellular matrix (ECM)-ornamented biomaterials have attracted attention due to their high potential to improve the biofunctionality of original materials. It is thought that ECM with a bone mimetic microenvironment generated by the specific induction of osteoblasts would be more beneficial for bone regeneration than a regular ECM. In this study, we developed an osteogenic and mineralized ECM construct (Os/M-ECM-SIS) under the guidance of osteoblasts on a small intestinal submucosa (SIS) scaffold cotreated with icariin and calcium. The generated Os/M-ECM-SIS scaffolds exhibited similar morphology and inorganic components as natural bone and higher mechanical strength than ECM-SIS. Cell adhesion, proliferation, and differentiation of osteoblasts and fibroblasts were also enhanced in the cells cultured on the Os/M-ECM-SIS scaffolds. The Os/M-ECM-SIS scaffolds even promoted transdifferentiation of fibroblasts with an upregulation of osteogenic differentiation markers. In a calvarial defect model, new bone formation was greatly enhanced in defects implanted with the Os/M-ECM-SIS scaffolds compared with ECM-SIS scaffolds. Further study showed that the Os/M-ECM-SIS scaffolds promoted bone regeneration in vitro and in vivo via the Bmp/Smad-signaling pathway. Thus, this work proposes a valuable method for generating a mineralized bone mimetic scaffold with SIS as off-the-shelf bone graft substitute that provides an excellent osteogenic microenvironment, making it suitable for application in bone tissue engineering.
Collapse
Affiliation(s)
- Mei Li
- 1 Zhejiang Key Laboratory of Pathophysiology, Medical School, Ningbo University , Ningbo, People's Republic of China .,2 Ningbo Institute of Medical Sciences , Ningbo, People's Republic of China
| | - Chi Zhang
- 1 Zhejiang Key Laboratory of Pathophysiology, Medical School, Ningbo University , Ningbo, People's Republic of China
| | - Yuxing Mao
- 1 Zhejiang Key Laboratory of Pathophysiology, Medical School, Ningbo University , Ningbo, People's Republic of China
| | - Yi Zhong
- 1 Zhejiang Key Laboratory of Pathophysiology, Medical School, Ningbo University , Ningbo, People's Republic of China
| | - Jiyuan Zhao
- 1 Zhejiang Key Laboratory of Pathophysiology, Medical School, Ningbo University , Ningbo, People's Republic of China
| |
Collapse
|
103
|
Liang B, Huang J, Xu J, Li X, Li J. Local delivery of a novel PTHrP via mesoporous bioactive glass scaffolds to improve bone regeneration in a rat posterolateral spinal fusion model. RSC Adv 2018; 8:12484-12493. [PMID: 35539368 PMCID: PMC9079365 DOI: 10.1039/c8ra00870a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 03/26/2018] [Indexed: 12/01/2022] Open
Abstract
With the development of tissue engineering, bone defects, such as fractured long bones or cavitary lesions, may be efficiently repaired and reconstructed using bone substitutes. However, high rates of fusion failure remain unavoidable in spinal fusion surgery owing to the lack of appropriate materials for bone regeneration under such challenging conditions. Parathyroid hormone (PTH), a major regulator of bone remodeling, exerts both anabolic and catabolic effects. In this study, we modified PTH(1-34) and designed and synthesized a novel PTH-related peptide, namely PTHrP-1. Further, we fabricated a local PTHrP delivery device from mesoporous bioactive glass (MBG) to address the need for a suitable material in spinal fusion surgery. Using MBG scaffolds as a control, the biological properties of PTHrP-MBG scaffolds were evaluated in terms of attachment, proliferation, and alkaline phosphatase activity, as well as osteogenic gene and angiogenic gene expression in co-cultured rat bone marrow mesenchymal stem cells (rBMSCs) in vitro. Furthermore, PTHrP-1-MBG scaffolds were tested in a rat posterolateral spinal fusion model. Our data showed that PTHrP-1-MBG scaffolds possessed good ability to facilitate attachment and stimulation of rBMSC proliferation and differentiation. Importantly, the in vivo results revealed that the PTHrP-1-MBG scaffolds facilitated faster new bone formation and a higher rate and quality of spinal fusion. Therefore, the results suggest that devices consisting of the present novel PTHrP and MBG possess wider potential applications in bone regeneration and should serve as a promising bone substitute for spinal fusion.
Collapse
Affiliation(s)
- Bo Liang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital 600 Yishan Road Shanghai 200233 PR China
| | - Jinghuan Huang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital 600 Yishan Road Shanghai 200233 PR China
| | - Jianguang Xu
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital 600 Yishan Road Shanghai 200233 PR China
| | - Xiaolin Li
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital 600 Yishan Road Shanghai 200233 PR China
| | - Jingfeng Li
- Department of Orthopedics, Zhongnan Hospital of Wuhan University Wuhan 430071 PR China
| |
Collapse
|
104
|
Yuan Z, Liu P, Liang Y, Tao B, He Y, Hao Y, Yang W, Hu Y, Cai K. Investigation of osteogenic responses of Fe-incorporated micro/nano-hierarchical structures on titanium surfaces. J Mater Chem B 2018; 6:1359-1372. [DOI: 10.1039/c7tb03071a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Fe incorporated micro/nano topographical titanium substrates are fabricated to synergistically regulate osteogenic responses in vitro and osseointegration in vivo.
Collapse
Affiliation(s)
- Zhang Yuan
- Key Laboratory of Biorheological Science and Technology of Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
- China
| | - Peng Liu
- Key Laboratory of Biorheological Science and Technology of Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
- China
| | - Yanan Liang
- Key Laboratory of Biorheological Science and Technology of Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
- China
| | - Bailong Tao
- Key Laboratory of Biorheological Science and Technology of Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
- China
| | - Ye He
- Key Laboratory of Biorheological Science and Technology of Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
- China
| | - Yansha Hao
- Key Laboratory of Biorheological Science and Technology of Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
- China
| | - Weihu Yang
- Key Laboratory of Biorheological Science and Technology of Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
- China
| | - Yan Hu
- Key Laboratory of Biorheological Science and Technology of Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
- China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology of Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
- China
| |
Collapse
|
105
|
Yu Z, Xiao C, Huang Y, Chen M, Wei W, Yang X, Zhou H, Bi X, Lu L, Ruan J, Fan X. Enhanced bioactivity and osteoinductivity of carboxymethyl chitosan/nanohydroxyapatite/graphene oxide nanocomposites. RSC Adv 2018; 8:17860-17877. [PMID: 35542061 PMCID: PMC9080497 DOI: 10.1039/c8ra00383a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 04/15/2018] [Indexed: 12/26/2022] Open
Abstract
Tissue engineering approaches combine a bioscaffold with stem cells to provide biological substitutes that can repair bone defects and eventually improve tissue functions. The prospective bioscaffold should have good osteoinductivity. Surface chemical and roughness modifications are regarded as valuable strategies for developing bioscaffolds because of their positive effects on enhancing osteogenic differentiation. However, the synergistic combination of the two strategies is currently poorly studied. In this work, a nanoengineered scaffold with surface chemistry (oxygen-containing groups) and roughness (Rq = 74.1 nm) modifications was fabricated by doping nanohydroxyapatite (nHA), chemically crosslinked graphene oxide (GO) and carboxymethyl chitosan (CMC). The biocompatibility and osteoinductivity of the nanoengineered CMC/nHA/GO scaffold was evaluated in vitro and in vivo, and the osteogenic differentiation mechanism of the nanoengineered scaffold was preliminarily investigated. Our data demonstrated that the enhanced osteoinductivity of CMC/nHA/GO may profit from the surface chemistry and roughness, which benefit the β1 integrin interactions with the extracellular matrix and activate the FAK–ERK signaling pathway to upregulate the expression of osteogenic special proteins. This study indicates that the nanocomposite scaffold with surface chemistry and roughness modifications could serve as a novel and promising bone substitute for tissue engineering. The CMC/nHA/GO scaffold with the surface chemistry and roughness dual effects and the release of phosphate and calcium ions synergistically assist the mineralization and facilitate the bone regeneration.![]()
Collapse
|
106
|
Zhang F, Li Q, Lin Z, Ma L, Xu S, Feng Q, Dong H, Zhang Y, Cao X. Engineered Fe(OH)3 nanoparticle-coated and rhBMP-2-releasing PLGA microsphere scaffolds for promoting bone regeneration by facilitating cell homing and osteogenic differentiation. J Mater Chem B 2018; 6:2831-2842. [DOI: 10.1039/c8tb00569a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Iron facilitates cell homing and enhances the capacity of rhBMP-2.
Collapse
Affiliation(s)
- Fen Zhang
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641
- China
- National Engineering Research Centre for Tissue Restoration and Reconstruction
| | - Qingtao Li
- National Engineering Research Centre for Tissue Restoration and Reconstruction
- Guangzhou 510006
- China
- Guangdong Province Key Laboratory of Biomedical Engineering
- South China University of Technology
| | - Zefeng Lin
- Department of Orthopedics
- Guangzhou General Hospital of Guangzhou Military Command
- Guangzhou
- China
- Guangdong Key Laboratory of Orthopedic Technology and Implant Materials
| | - Limin Ma
- Department of Orthopedics
- Guangzhou General Hospital of Guangzhou Military Command
- Guangzhou
- China
- Guangdong Key Laboratory of Orthopedic Technology and Implant Materials
| | - Sheng Xu
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641
- China
- National Engineering Research Centre for Tissue Restoration and Reconstruction
| | - Qi Feng
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641
- China
- National Engineering Research Centre for Tissue Restoration and Reconstruction
| | - Hua Dong
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641
- China
- National Engineering Research Centre for Tissue Restoration and Reconstruction
| | - Yu Zhang
- Department of Orthopedics
- Guangzhou General Hospital of Guangzhou Military Command
- Guangzhou
- China
- Guangdong Key Laboratory of Orthopedic Technology and Implant Materials
| | - Xiaodong Cao
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641
- China
- National Engineering Research Centre for Tissue Restoration and Reconstruction
| |
Collapse
|
107
|
Wang X, Zhang G, Qi F, Cheng Y, Lu X, Wang L, Zhao J, Zhao B. Enhanced bone regeneration using an insulin-loaded nano-hydroxyapatite/collagen/PLGA composite scaffold. Int J Nanomedicine 2017; 13:117-127. [PMID: 29317820 PMCID: PMC5743129 DOI: 10.2147/ijn.s150818] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Insulin is widely considered as a classical hormone and drug in maintaining energy and glucose homeostasis. Recently, insulin has been increasingly recognized as an indispensable factor for osteogenesis and bone turnover, but its applications in bone regeneration have been restricted because of the short periods of activity and uncontrolled release. In this study, we incorporated insulin-loaded poly lactic-co-glycolic-acid (PLGA) nanospheres into nano-hydroxyapatite/collagen (nHAC) scaffolds and investigated the bioactivity of the composite scaffolds in vitro and in vivo. Bioactive insulin was successfully released from the nanospheres within the scaffold, and the release kinetics of insulin could be efficiently controlled by uniform-sized nanospheres. The physical characterizations of the composite scaffolds demonstrated that incorporation of nanospheres in nHAC scaffolds using this method did not significantly change the porosity, pore diameters, and compressive strengths of nHAC. In vitro, the insulin-loaded nHAC/PLGA composite scaffolds possessed favorable biological function for bone marrow mesenchymal stem cells adhesion and proliferation, as well as the differentiation into osteoblasts. In vivo, the optimized bone regenerative capability of this composite scaffold was confirmed in rabbit mandible critical size defects. These results demonstrated successful development of a functional insulin-PLGA-nHAC composite scaffold that enhances the bone regeneration capability of nHAC.
Collapse
Affiliation(s)
- Xing Wang
- Shanxi Medical University Stomatological Hospital, Taiyuan
| | - Guilan Zhang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Feng Qi
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO, USA
| | - Yongfeng Cheng
- Shanxi Medical University Stomatological Hospital, Taiyuan
| | - Xuguang Lu
- Shanxi Medical University Stomatological Hospital, Taiyuan
| | - Lu Wang
- Shanxi Medical University Stomatological Hospital, Taiyuan
| | - Jing Zhao
- Shanxi Medical University Stomatological Hospital, Taiyuan
| | - Bin Zhao
- Shanxi Medical University Stomatological Hospital, Taiyuan
| |
Collapse
|
108
|
Babaie E, Bhaduri SB. Fabrication Aspects of Porous Biomaterials in Orthopedic Applications: A Review. ACS Biomater Sci Eng 2017; 4:1-39. [DOI: 10.1021/acsbiomaterials.7b00615] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Elham Babaie
- Department
of Bioengineering, Bioscience Research Collaborative, Rice University, Houston, Texas 77030, United States
| | - Sarit B. Bhaduri
- Department
of Mechanical and Industrial Engineering and Division of Dentistry, University of Toledo, Toledo, Ohio 43606, United States
| |
Collapse
|
109
|
FTIR characterization and release of bovine serum albumin from bioactive glasses. J Appl Biomater Funct Mater 2017; 15:e347-e355. [PMID: 28799638 DOI: 10.5301/jabfm.5000374] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/05/2017] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Bioactive glass has attracted substantial interest in orthopedics, but it has been less explored as a drug carrier. This study investigated the bovine serum albumin (BSA) release from bioactive 13-93B0 and 13-93B3 glasses. METHODS Glass disks (13-93B0 and 13-93B3; n = 5) were loaded with 4 mg of BSA and coated under different chitosan-coating conditions. The amount of BSA released in phosphate-buffered saline (PBS) was evaluated, and a degradation study was performed to find out the weight loss and pH of PBS. Secondary structures of BSA on 13-93B0 were characterized by Fourier transform infrared (FTIR) spectroscopy. RESULTS One hundred percent protein release occurred by 24 hours for all 13-93B3 groups. However, chitosan coating delayed 100% release up to 72 hours in 13-93B0 groups. The 13-93B3 glass showed higher degradation rates than 13-93B0 regardless of chitosan-coating status. Multilayer and sandwich chitosan coatings further delayed BSA release from 13-93B0. FTIR analysis revealed that α-helical structure was the highest among all groups and significantly higher in the 2% sandwich chitosan coating group (32.0% ± 2.1%), compared with uncoated and 4% chitosan groups. CONCLUSIONS Chitosan coating can delay the burst release of BSA from 13-93B0 glass and be a potential coating on bioactive glass for drug delivery purposes.
Collapse
|
110
|
Niu H, Lin D, Tang W, Ma Y, Duan B, Yuan Y, Liu C. Surface Topography Regulates Osteogenic Differentiation of MSCs via Crosstalk between FAK/MAPK and ILK/β-Catenin Pathways in a Hierarchically Porous Environment. ACS Biomater Sci Eng 2017; 3:3161-3175. [DOI: 10.1021/acsbiomaterials.7b00315] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Haoyi Niu
- Key
Laboratory for Ultrafine Materials of Ministry of Education and
The State Key Laboratory of Bioreactor Engineering, and ‡Engineering Research Center for
Biomaterials of Ministry of Education, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Dan Lin
- Key
Laboratory for Ultrafine Materials of Ministry of Education and
The State Key Laboratory of Bioreactor Engineering, and ‡Engineering Research Center for
Biomaterials of Ministry of Education, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Wei Tang
- Key
Laboratory for Ultrafine Materials of Ministry of Education and
The State Key Laboratory of Bioreactor Engineering, and ‡Engineering Research Center for
Biomaterials of Ministry of Education, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Yifan Ma
- Key
Laboratory for Ultrafine Materials of Ministry of Education and
The State Key Laboratory of Bioreactor Engineering, and ‡Engineering Research Center for
Biomaterials of Ministry of Education, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Bing Duan
- Key
Laboratory for Ultrafine Materials of Ministry of Education and
The State Key Laboratory of Bioreactor Engineering, and ‡Engineering Research Center for
Biomaterials of Ministry of Education, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Yuan Yuan
- Key
Laboratory for Ultrafine Materials of Ministry of Education and
The State Key Laboratory of Bioreactor Engineering, and ‡Engineering Research Center for
Biomaterials of Ministry of Education, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Changsheng Liu
- Key
Laboratory for Ultrafine Materials of Ministry of Education and
The State Key Laboratory of Bioreactor Engineering, and ‡Engineering Research Center for
Biomaterials of Ministry of Education, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| |
Collapse
|
111
|
El-Rashidy AA, Roether JA, Harhaus L, Kneser U, Boccaccini AR. Regenerating bone with bioactive glass scaffolds: A review of in vivo studies in bone defect models. Acta Biomater 2017; 62:1-28. [PMID: 28844964 DOI: 10.1016/j.actbio.2017.08.030] [Citation(s) in RCA: 328] [Impact Index Per Article: 46.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 08/16/2017] [Accepted: 08/23/2017] [Indexed: 12/19/2022]
Abstract
Large bone defects resulting from fractures and disease are a medical concern, being often unable to heal spontaneously by the body's repair mechanisms. Bone tissue engineering (BTE) is a promising approach for treating bone defects through providing a template to guide osseous regeneration. 3D scaffolds with microstructure mimicking host bone are necessary in common BTE strategies. Bioactive glasses (BGs) attract researchers' attention as BTE scaffolds as they are osteoconductive and osteoinductive in certain formulations. In vivo animal models allow understanding and evaluation of materials' performance in the complex physiological environment, being an inevitable step before clinical trials. The aim of this paper is to review for the first time published research investigating the in vivo osseous regenerative capacity of 3D BG scaffolds in bone defect animal models, to better understand and evaluate the progress and future outlook of the use of such scaffolds in BTE. The literature analysis reveals that the regenerative capacity of BG scaffolds depends on several factors; including BG composition, fabrication method, scaffold microstructure and pore characteristics, in addition to scaffold pretreatment and whether or not the scaffolds are loaded with growth factors. In addition, animal species selected, defect size and implantation time affect the scaffold in vivo behavior and outcomes. The review of the literature also makes clear the difficulty encountered to compare different types of bioactive glass scaffolds in their bone forming ability. Even considering such limitations of the current state-of-the-art, results generated from animal bone defect models provide an essential source of information to guide the design of BG scaffolds in future. STATEMENT OF SIGNIFICANCE Bioactive glasses are at the centre of increasing research efforts in bone tissue engineering as the number of research groups around the world carrying out research on this type of biomaterials continues to increase. However, there are no previous reviews in literature which specifically cover investigations of the performance of bioactive glass scaffolds in bone defect animal models. This is the topic of the present review, in which we have analysed comprehensively all available literature in the field. The review thus fills a gap in the biomaterials literature providing a broad platform of information for researchers interested in bioactive glasses in general and specifically in the outcomes of in vivo models. Bioactive glass scaffolds of different compositions tested in relevant bone defect models are covered.
Collapse
Affiliation(s)
- Aiah A El-Rashidy
- Department of Biomaterials, Faculty of Oral and Dental Medicine, Cairo University, 11562 Cairo, Egypt
| | - Judith A Roether
- Institute of Polymer Materials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Leila Harhaus
- Department of Hand, Plastic and Reconstructive Surgery - Burn Center - BG Trauma Center Ludwigshafen, Plastic and Hand Surgery, University of Heidelberg, Ludwigshafen, Germany
| | - Ulrich Kneser
- Department of Hand, Plastic and Reconstructive Surgery - Burn Center - BG Trauma Center Ludwigshafen, Plastic and Hand Surgery, University of Heidelberg, Ludwigshafen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany.
| |
Collapse
|
112
|
Lin JH, Lee MC, Chen CK, Huang CL, Chen YS, Wen SP, Kuo ST, Lou CW. Recovery evaluation of rats' damaged tibias: Implantation of core-shell structured bone scaffolds made using hollow braids and a freeze-thawing process. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.04.156] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
113
|
Liu Y, Ma Y, Zhang J, Xie Q, Wang Z, Yu S, Yuan Y, Liu C. MBG-Modified β-TCP Scaffold Promotes Mesenchymal Stem Cells Adhesion and Osteogenic Differentiation via a FAK/MAPK Signaling Pathway. ACS APPLIED MATERIALS & INTERFACES 2017; 9:30283-30296. [PMID: 28820575 DOI: 10.1021/acsami.7b02466] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The β-TCP scaffold has been widely used as a bone graft substitute, but the traditional PMMA molding method-induced undesirable mechanical strength and poor interconnectivity still have not been addressed until now. In this study, a MBG-based PU foam templating method was developed to fabricate β-TCP scaffolds with desirable microtopography. The MBG gel, as both binder and modifier, prepared by a modified sol-gel method with controlled viscosity is incorporated with β-TCP powder and thereafter is impregnated into PU foam. The resultant hybrid scaffolds exhibited interconnected macropores (200-500 μm) and distinctive micropores (0.2-1.5 μm), especially for the TCP/25MBG (with 25 wt % content MBG). As expected, the compression strength of β-TCP/MBG composite scaffolds was enhanced with increasing MBG content, and TCP/50MBG (with 50 wt % content MBG) exhibited almost 100-fold enhancement compared to the pure β-TCP. Intriguingly, the cell affinity and osteogenic capacity of rBMSCs were also dramatically improved the best on TCP/25MBG. Further investigation found that the subtle, grainy-like microtopography, not the chemical composition, of the TCP/25MBG favored the adsorption of Fn and expression of integrin α5β1 and further facilitated FA formation and the expression of p-FAK, following activation of the MAPK/ERK signaling pathway and ultimately upregulated expression of osteogenic genes. Further in vivo experiments confirmed the promoted osteogenesis of TCP/25MBG in vivo. The results suggest that such a novel MBG-based PU foam templating method offers new guidance to construct hierarchically porous scaffolds, and the prepared MBG-modified β-TCP scaffold will have great potential for future use in bone tissue regeneration.
Collapse
Affiliation(s)
| | | | | | - Qing Xie
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai 200011, People's Republic of China
| | - Zi Wang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai 200011, People's Republic of China
| | | | | | | |
Collapse
|
114
|
In vivo bone regeneration evaluation of duck’s feet collagen/PLGA scaffolds in rat calvarial defect. Macromol Res 2017. [DOI: 10.1007/s13233-017-5134-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
115
|
Effect of hierarchical pore structure on ALP expression of MC3T3-E1 cells on bioglass films. Colloids Surf B Biointerfaces 2017; 156:213-220. [DOI: 10.1016/j.colsurfb.2017.05.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 04/19/2017] [Accepted: 05/05/2017] [Indexed: 01/16/2023]
|
116
|
Biao MN, Chen YM, Xiong SB, Wu BY, Yang BC. Synergistic effects of fibronectin and bone morphogenetic protein on the bioactivity of titanium metal. J Biomed Mater Res A 2017; 105:2485-2498. [PMID: 28498566 DOI: 10.1002/jbm.a.36106] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 04/30/2017] [Accepted: 05/05/2017] [Indexed: 01/06/2023]
Abstract
To improve the biological properties of bioactive titanium metal, recombinant human bone morphogenetic protein 2(rhBMP-2) and fibronectin (Fn) were adsorbed on its surface solely or contiguously to modify the anodic oxidized titanium (AO-Ti), acid-alkali-treated titanium (AA-Ti), and polished titanium (P-Ti). It is found that the different bioactive titanium surface structures had great influence on protein adsorption. The adsorption amounts of BMP adsorbed solely and Fn/BMP adsorbed contiguously were AA-Ti > P-Ti > AO-Ti, and that for Fn adsorbed solely was AA-Ti ≈ P-Ti > AO-Ti. The conformation of proteins was changed remarkably after the adsorption. For BMP, the α-helix decreased on AA-Ti and stabilized on P-Ti and AO-Ti. For Fn, the β-sheet on PT-Ti and AA-Ti increased significantly. For Fn/BMP, the percentage of β-sheet on AA-Ti increased, and that of α-helix on all samples was stable. MSCs showed greater adhesion and spreading on Fn/BMP groups. MTT and Elisa tests showed that the synergistic effects of proteins made the cells proliferate and differentiate faster. It indicated both the surface structure and the synergistic effects of proteins could influence the biological properties of titanium metals. It provides research foundation for improving the biological properties of bioactive titanium metals by simultaneous application of several proteins. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 2485-2498, 2017.
Collapse
Affiliation(s)
- M N Biao
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, Sichuan, 610064, China
- National Engineering Research Center for Biomaterials, Chengdu, Sichuan, 610064, China
- Sichuan Guojia Biomaterials Co., Ltd, Chengdu, Sichuan, 610064, China
| | - Y M Chen
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, Sichuan, 610064, China
- National Engineering Research Center for Biomaterials, Chengdu, Sichuan, 610064, China
- Sichuan Guojia Biomaterials Co., Ltd, Chengdu, Sichuan, 610064, China
| | - S B Xiong
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, Sichuan, 610064, China
- National Engineering Research Center for Biomaterials, Chengdu, Sichuan, 610064, China
- Sichuan Guojia Biomaterials Co., Ltd, Chengdu, Sichuan, 610064, China
| | - B Y Wu
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, Sichuan, 610064, China
- National Engineering Research Center for Biomaterials, Chengdu, Sichuan, 610064, China
- Sichuan Guojia Biomaterials Co., Ltd, Chengdu, Sichuan, 610064, China
| | - B C Yang
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, Sichuan, 610064, China
- National Engineering Research Center for Biomaterials, Chengdu, Sichuan, 610064, China
- Sichuan Guojia Biomaterials Co., Ltd, Chengdu, Sichuan, 610064, China
| |
Collapse
|
117
|
Engineering biomimetic periosteum with β-TCP scaffolds to promote bone formation in calvarial defects of rats. Stem Cell Res Ther 2017; 8:134. [PMID: 28583167 PMCID: PMC5460346 DOI: 10.1186/s13287-017-0592-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 04/26/2017] [Accepted: 05/18/2017] [Indexed: 01/01/2023] Open
Abstract
Background There is a critical need for the management of large bone defects. The purpose of this study was to engineer a biomimetic periosteum and to combine this with a macroporous β-tricalcium phosphate (β-TCP) scaffold for bone tissue regeneration. Methods Rat bone marrow-derived mesenchymal stem cells (rBMSCs) were harvested and cultured in different culture media to form undifferentiated rBMSC sheets (undifferentiated medium (UM)) and osteogenic cell sheets (osteogenic medium (OM)). Simultaneously, rBMSCs were differentiated to induced endothelial-like cells (iECs), and the iECs were further cultured on a UM to form a vascularized cell sheet. At the same time, flow cytometry was used to detect the conversion rates of rBMSCs to iECs. The pre-vascularized cell sheet (iECs/UM) and the osteogenic cell sheet (OM) were stacked together to form a biomimetic periosteum with two distinct layers, which mimicked the fibrous layer and cambium layer of native periosteum. The biomimetic periostea were wrapped onto porous β-TCP scaffolds (BP/β-TCP) and implanted in the calvarial bone defects of rats. As controls, autologous periostea with β-TCP (AP/β-TCP) and β-TCP alone were implanted in the calvarial defects of rats, with a no implantation group as another control. At 2, 4, and 8 weeks post-surgery, implants were retrieved and X-ray, microcomputed tomography (micro-CT), histology, and immunohistochemistry staining analyses were performed. Results Flow cytometry results showed that rBMSCs were partially differentiated into iECs with a 35.1% conversion rate in terms of CD31. There were still 20.97% rBMSCs expressing CD90. Scanning electron microscopy (SEM) results indicated that cells from the wrapped cell sheet on the β-TCP scaffold apparently migrated into the pores of the β-TCP scaffold. The histology and immunohistochemistry staining results from in vivo implantation indicated that the BP/β-TCP and AP/β-TCP groups promoted the formation of blood vessels and new bone tissues in the bone defects more than the other two control groups. In addition, micro-CT showed that more new bone tissue formed in the BP/β-TCP and AP/β-TCP groups than the other groups. Conclusions Inducing rBMSCs to iECs could be a good strategy to obtain an endothelial cell source for prevascularization. Our findings indicate that the biomimetic periosteum with porous β-TCP scaffold has a similar ability to promote osteogenesis and angiogenesis in vivo compared to the autologous periosteum. This function could result from the double layers of biomimetic periosteum. The prevascularized cell sheet served a mimetic fibrous layer and the osteogenic cell sheet served a cambium layer of native periosteum. The biomimetic periosteum with a porous ceramic scaffold provides a new promising method for bone healing.
Collapse
|
118
|
Li M, Zhang C, Cheng M, Gu Q, Zhao J. Small intestinal submucosa: A potential osteoconductive and osteoinductive biomaterial for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:149-156. [DOI: 10.1016/j.msec.2017.02.042] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 12/26/2016] [Accepted: 02/10/2017] [Indexed: 01/13/2023]
|
119
|
Ding Z, Han H, Fan Z, Lu H, Sang Y, Yao Y, Cheng Q, Lu Q, Kaplan DL. Nanoscale Silk-Hydroxyapatite Hydrogels for Injectable Bone Biomaterials. ACS APPLIED MATERIALS & INTERFACES 2017; 9:16913-16921. [PMID: 28471165 DOI: 10.1021/acsami.7b03932] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Injectable hydrogel systems are important bone substitutes for regeneration because of their handling properties and the ability to fill irregular defects. Silk-hydroxyapatite composite materials with silk nanofibers in hydrogels were prepared and used as biomaterials for osteogenesis. These thixotropic silk nanofiber hydrogels and water-dispersible silk-HA nanoparticles were blended to form injectable nanoscale systems with a homogeneous distribution of a high HA content [60% (w/w)] to imitate bone niche. A modulus of ∼21 kPa was also achieved following the addition of HA in the systems, providing physical cues to induce osteodifferentiation. The composite hydrogels supported improved osteogenesis compared to that with silk nanofiber hydrogels. The newly formed bone tissue and bone defect healing were detected after implantation of the silk-HA composite hydrogels, suggesting utility for the regeneration of irregular bone defects.
Collapse
Affiliation(s)
- Zhaozhao Ding
- School of Biology and Basic Medical Sciences and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, People's Republic of China
- National Engineering Laboratory for Modern Silk, Soochow University , Suzhou 215123, People's Republic of China
| | - Hongyan Han
- School of Biology and Basic Medical Sciences and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, People's Republic of China
| | - Zhihai Fan
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University , Suzhou 215000, People's Republic of China
| | - Haijun Lu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University , Suzhou 215000, People's Republic of China
| | - Yonghuan Sang
- National Engineering Laboratory for Modern Silk, Soochow University , Suzhou 215123, People's Republic of China
| | - Yuling Yao
- School of Biology and Basic Medical Sciences and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, People's Republic of China
| | - Qingqing Cheng
- National Engineering Laboratory for Modern Silk, Soochow University , Suzhou 215123, People's Republic of China
| | - Qiang Lu
- School of Biology and Basic Medical Sciences and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, People's Republic of China
- National Engineering Laboratory for Modern Silk, Soochow University , Suzhou 215123, People's Republic of China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University , Medford, Massachusetts 02155, United States
| |
Collapse
|
120
|
Wu Z, Li Q, Pan Y, Yao Y, Tang S, Su J, Shin JW, Wei J, Zhao J. Nanoporosity improved water absorption, in vitro degradability, mineralization, osteoblast responses and drug release of poly(butylene succinate)-based composite scaffolds containing nanoporous magnesium silicate compared with magnesium silicate. Int J Nanomedicine 2017; 12:3637-3651. [PMID: 28553104 PMCID: PMC5439988 DOI: 10.2147/ijn.s132778] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Bioactive composite macroporous scaffold containing nanoporosity was prepared by incorporation of nanoporous magnesium silicate (NMS) into poly(butylene succinate) (PBSu) using solvent casting-particulate leaching method. The results showed that the water absorption and in vitro degradability of NMS/PBSu composite (NMPC) scaffold significantly improved compared with magnesium silicate (MS)/PBSu composite (MPC) scaffold. In addition, the NMPC scaffold showed improved apatite mineralization ability, indicating better bioactivity, as the NMPC containing nanoporosity could induce more apatite and homogeneous apatite layer on the surfaces than MPC scaffold. The attachment and proliferation of MC3T3-E1 cells on NMPC scaffold increased significantly compared with MPC scaffold, and the alkaline phosphatase (ALP) activity of the cells on NMPC scaffold was expressed at considerably higher levels compared with MPC scaffold. Moreover, NMPC scaffold with nanoporosity not only had large drug loading (vancomycin) but also exhibited drug sustained release. The results suggested that the incorporation of NMS into PBSu could produce bioactive composite scaffold with nanoporosity, which could enhance water absorption, degradability, apatite mineralization and drug sustained release and promote cell responses.
Collapse
Affiliation(s)
- Zhaoying Wu
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology
| | - Quan Li
- Department of Orthopaedics Trauma, Changhai Hospital, Second Military Medical University, Shanghai, People’s Republic of China
| | - Yongkang Pan
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology
| | - Yuan Yao
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology
| | - Songchao Tang
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology
| | - Jiacan Su
- Department of Orthopaedics Trauma, Changhai Hospital, Second Military Medical University, Shanghai, People’s Republic of China
| | - Jung-Woog Shin
- Department of Biomedical Engineering, Inje University, Gimhae, Republic of Korea
| | - Jie Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology
| | - Jun Zhao
- Department of Orthodontics
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, People’s Republic of China
| |
Collapse
|
121
|
Abstract
Bone diseases/injuries have been driving an urgent quest for bone substitutes for bone regeneration. Nanoscaled materials with bone-mimicking characteristics may create suitable microenvironments to guide effective bone regeneration. In this review, the natural hierarchical architecture of bone and its regeneration mechanisms are elucidated. Recent progress in the development of nanomaterials which can promote bone regeneration through bone-healing mimicry (e.g., compositional, nanocrystal formation, structural, and growth factor-related mimicking) is summarized. The nanoeffects of nanomaterials on the regulation of bone-related biological functions are highlighted. How to prepare nanomaterials with combinative bone-biomimicry features according to the bone healing process is prospected in order to achieve rapid bone regeneration in situ.
Collapse
Affiliation(s)
- Yulin Li
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
| | | |
Collapse
|
122
|
Wang X, Wu X, Xing H, Zhang G, Shi Q, E L, Liu N, Yang T, Wang D, Qi F, Wang L, Liu H. Porous Nanohydroxyapatite/Collagen Scaffolds Loading Insulin PLGA Particles for Restoration of Critical Size Bone Defect. ACS APPLIED MATERIALS & INTERFACES 2017; 9:11380-11391. [PMID: 28256126 DOI: 10.1021/acsami.6b13566] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Insulin is considered to be a classical central regulator of energy homeostasis. Recently, the effect of insulin on bone has gained a lot of attention, but little attention has been paid to the application in bone tissue engineering. In this study, porous nanohydroxyapatite/collagen (nHAC) scaffolds incorporating poly lactic-co-glycolic acid (PLGA) particles were successfully developed as an insulin delivery platform for bone regeneration. Bioactive insulin was successfully released from the PLGA particles within the scaffold, and the size of the particles as well as the release kinetics of the insulin could be efficiently controlled through Shirasu porous glass premix membrane emulsification technology. It was indicated that the nHAC/PLGA composite scaffolds possessed favorable mechanical and structural properties for cell adhesion and proliferation, as well as the differentiation into osteoblasts. It was also demonstrated that the nHAC/PLGA scaffolds implanted into a rabbit critical-size mandible defect possessed tissue compatibility and higher bone restoration capacity compared with the defects that were filled with or without nHAC scaffolds. Furthermore, the in vivo results showed that the nHAC/PLGA scaffolds which incorporated insulin-loaded microspheres with a size of 1.61 μm significantly accelerated bone healing compared with two other composite scaffolds. Our study indicated that the local insulin released at the optimal time could substantially and reproducibly improve bone repair.
Collapse
Affiliation(s)
- Xing Wang
- Institute of Stomatology, Chinese PLA General Hospital , Beijing 100853, China
- Hospital of Stomatology, Shanxi Medical University , Taiyuan, 030001, China
| | - Xia Wu
- Institute of Stomatology, Chinese PLA General Hospital , Beijing 100853, China
| | - Helin Xing
- Institute of Stomatology, Chinese PLA General Hospital , Beijing 100853, China
| | - Guilan Zhang
- Institute of Stomatology, Chinese PLA General Hospital , Beijing 100853, China
| | - Quan Shi
- Institute of Stomatology, Chinese PLA General Hospital , Beijing 100853, China
| | - Lingling E
- Institute of Stomatology, Chinese PLA General Hospital , Beijing 100853, China
| | - Na Liu
- Institute of Stomatology, Chinese PLA General Hospital , Beijing 100853, China
| | - Tingyuan Yang
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences , Beijing, 100190, China
| | - Dongsheng Wang
- Institute of Stomatology, Chinese PLA General Hospital , Beijing 100853, China
| | - Feng Qi
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences , Beijing, 100190, China
| | - Lianyan Wang
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences , Beijing, 100190, China
| | - Hongchen Liu
- Institute of Stomatology, Chinese PLA General Hospital , Beijing 100853, China
| |
Collapse
|
123
|
Oktay B, Kayaman-Apohan N, Süleymanoğlu M, Erdem-Kuruca S. Zwitterionic phosphorylcholine grafted chitosan nanofiber: Preparation, characterization and in-vitro cell adhesion behavior. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 73:569-578. [DOI: 10.1016/j.msec.2016.12.082] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 11/25/2016] [Accepted: 12/17/2016] [Indexed: 01/12/2023]
|
124
|
Lee GH, Makkar P, Paul K, Lee B. Incorporation of BMP-2 loaded collagen conjugated BCP granules in calcium phosphate cement based injectable bone substitutes for improved bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:713-724. [PMID: 28532084 DOI: 10.1016/j.msec.2017.03.296] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 03/31/2017] [Indexed: 12/22/2022]
Abstract
The objective of the present study was to incorporate surface modified porous multichannel BCP granule into CPC to enhance its in vivo biodegradation and bone tissue growth. The multichannel BCP granule (15wt%) was first coated with collagen subsequent to BMP-2 loading (ccMCG-B). It was then embedded into CPC to form CPC-ccMCG-B system. The newly developed CPC-ccMCG-B system was then examined for SEM, EDX, XRD, setting time, compressive strength, injectability, pH change, BMP-2 release, in vitro as well as in vivo studies and further compared with CPC. Optimized CPC (0.45mL/g) was found based on setting time and compressive strength studies. In vivo studies exhibited improved new bone formation and better degradation of CPC after 2 and 4weeks of implantation as compared to CPC as resulted from effective BMP-2 signaling. Our results suggest that CPC-ccMCG-B system might be used as a promising injectable bone substitutes in clinical applications.
Collapse
Affiliation(s)
- Gun Hee Lee
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, 366-1 Ssangyong dong, Cheonan 330-090, South Korea
| | - Preeti Makkar
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, 366-1 Ssangyong dong, Cheonan 330-090, South Korea
| | - Kallyanshis Paul
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, 366-1 Ssangyong dong, Cheonan 330-090, South Korea
| | - ByongTaek Lee
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, 366-1 Ssangyong dong, Cheonan 330-090, South Korea; Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, 366-1 Ssangyong dong, Cheonan 330-090, South Korea.
| |
Collapse
|
125
|
Li Y, Xiao Y, Liu C. The Horizon of Materiobiology: A Perspective on Material-Guided Cell Behaviors and Tissue Engineering. Chem Rev 2017; 117:4376-4421. [PMID: 28221776 DOI: 10.1021/acs.chemrev.6b00654] [Citation(s) in RCA: 345] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Although the biological functions of cell and tissue can be regulated by biochemical factors (e.g., growth factors, hormones), the biophysical effects of materials on the regulation of biological activity are receiving more attention. In this Review, we systematically summarize the recent progress on how biomaterials with controllable properties (e.g., compositional/degradable dynamics, mechanical properties, 2D topography, and 3D geometry) can regulate cell behaviors (e.g., cell adhesion, spreading, proliferation, cell alignment, and the differentiation or self-maintenance of stem cells) and tissue/organ functions. How the biophysical features of materials influence tissue/organ regeneration have been elucidated. Current challenges and a perspective on the development of novel materials that can modulate specific biological functions are discussed. The interdependent relationship between biomaterials and biology leads us to propose the concept of "materiobiology", which is a scientific discipline that studies the biological effects of the properties of biomaterials on biological functions at cell, tissue, organ, and the whole organism levels. This Review highlights that it is more important to develop ECM-mimicking biomaterials having a self-regenerative capacity to stimulate tissue regeneration, instead of attempting to recreate the complexity of living tissues or tissue constructs ex vivo. The principles of materiobiology may benefit the development of novel biomaterials providing combinative bioactive cues to activate the migration of stem cells from endogenous reservoirs (i.e., cell niches), stimulate robust and scalable self-healing mechanisms, and unlock the body's innate powers of regeneration.
Collapse
Affiliation(s)
- Yulin Li
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology , Meilong Road 130, Shanghai 200237, People's Republic of China
| | - Yin Xiao
- Institute of Health and Biomedical Innovation, Queensland University of Technology , Kelvin Grove, Brisbane, Queensland 4059, Australia
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology , Meilong Road 130, Shanghai 200237, People's Republic of China
| |
Collapse
|
126
|
Li M, Gu Q, Chen M, Zhang C, Chen S, Zhao J. Controlled delivery of icariin on small intestine submucosa for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:260-267. [DOI: 10.1016/j.msec.2016.10.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 08/26/2016] [Accepted: 10/13/2016] [Indexed: 02/07/2023]
|
127
|
Li C, Jiang C, Deng Y, Li T, Li N, Peng M, Wang J. RhBMP-2 loaded 3D-printed mesoporous silica/calcium phosphate cement porous scaffolds with enhanced vascularization and osteogenesis properties. Sci Rep 2017; 7:41331. [PMID: 28128363 PMCID: PMC5269721 DOI: 10.1038/srep41331] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 12/16/2016] [Indexed: 02/07/2023] Open
Abstract
A major limitation in the development of effective scaffolds for bone regeneration has been the limited vascularization of the regenerating tissue. Here, we propose the development of a novel calcium phosphate cement (CPC)-based scaffold combining the properties of mesoporous silica (MS) with recombinant human bone morphogenic protein-2 (rhBMP-2) to facilitate vascularization and osteogenesis. Specifically, the development of a custom MS/CPC paste allowed the three-dimensional (3D) printing of scaffolds with a defined macroporous structure and optimized silicon (Si) ions release profile to promote the ingrowth of vascular tissue at an early stage after implantation in support of tissue viability and osteogenesis. In addition, the scaffold microstructure allowed the prolonged release of rhBMP-2, which in turn significantly stimulated the osteogenesis of human bone marrow stromal cells in vitro and of bone regeneration in vivo as shown in a rabbit femur defect repair model. Thus, the combination MS/CPC/rhBMP-2 scaffolds might provide a solution to issues of tissue necrosis during the regeneration process and therefore might be able to be readily developed into a useful tool for bone repair in the clinic.
Collapse
Affiliation(s)
- Cuidi Li
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People’s Hospital Affiliated Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chuan Jiang
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yanjiang Road, Guangzhou, China
| | - Yuan Deng
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People’s Hospital Affiliated Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tao Li
- Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People’s Hospital Affiliated Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ning Li
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Mingzheng Peng
- Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People’s Hospital Affiliated Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinwu Wang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People’s Hospital Affiliated Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
128
|
Zou F, Lu FZ, Ma XS, He DW, Tang TT, Xia XL, Jiang JY, Niu YF. Retraction: Cell orientation, proliferation, and differentiation on poly( l-lactide) spherulites. RSC Adv 2017. [DOI: 10.1039/c7ra90056b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Retraction of ‘Cell orientation, proliferation, and differentiation on poly(l-lactide) spherulites’ by F. Zou et al., RSC Adv., 2016, 6, 57396–57402.
Collapse
Affiliation(s)
- F. Zou
- Department of Orthopaedics
- Huashan Hospital
- Fudan University
- Shanghai
- China
| | - F. Z. Lu
- Department of Orthopaedics
- Huashan Hospital
- Fudan University
- Shanghai
- China
| | - X. S. Ma
- Department of Orthopaedics
- Huashan Hospital
- Fudan University
- Shanghai
- China
| | - D. W. He
- Department of Orthopaedics
- Changhai Hospital
- The Second Military Medical University
- Shanghai 200433
- China
| | - T. T. Tang
- Shanghai Key Laboratory of Orthopedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People’s Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
| | - X. L. Xia
- Department of Orthopaedics
- Huashan Hospital
- Fudan University
- Shanghai
- China
| | - J. Y. Jiang
- Department of Orthopaedics
- Huashan Hospital
- Fudan University
- Shanghai
- China
| | - Y. F. Niu
- Department of Orthopaedics
- Changhai Hospital
- The Second Military Medical University
- Shanghai 200433
- China
| |
Collapse
|
129
|
Duan B, Niu H, Zhang W, Ma Y, Yuan Y, Liu C. Microporous density-mediated response of MSCs on 3D trimodal macro/micro/nano-porous scaffolds via fibronectin/integrin and FAK/MAPK signaling pathways. J Mater Chem B 2017; 5:3586-3599. [DOI: 10.1039/c7tb00041c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Microporous density influences cellular behaviors through mediating Fn–integrin interaction and FA formation, consequently resulting in FAK/MAPK cascade activation.
Collapse
Affiliation(s)
- Bing Duan
- Key Laboratory for Ultrafine Materials of Ministry of Education and The State Key Laboratory of Bioreactor Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
- Engineering Research Center for Biomaterials of Ministry of Education
| | - Haoyi Niu
- Key Laboratory for Ultrafine Materials of Ministry of Education and The State Key Laboratory of Bioreactor Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
- Engineering Research Center for Biomaterials of Ministry of Education
| | - Wenjing Zhang
- Key Laboratory for Ultrafine Materials of Ministry of Education and The State Key Laboratory of Bioreactor Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yifan Ma
- Engineering Research Center for Biomaterials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yuan Yuan
- Key Laboratory for Ultrafine Materials of Ministry of Education and The State Key Laboratory of Bioreactor Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
- Engineering Research Center for Biomaterials of Ministry of Education
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education and The State Key Laboratory of Bioreactor Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
- Engineering Research Center for Biomaterials of Ministry of Education
| |
Collapse
|
130
|
Yi H, Ur Rehman F, Zhao C, Liu B, He N. Recent advances in nano scaffolds for bone repair. Bone Res 2016; 4:16050. [PMID: 28018707 PMCID: PMC5153570 DOI: 10.1038/boneres.2016.50] [Citation(s) in RCA: 167] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 09/19/2016] [Accepted: 09/30/2016] [Indexed: 12/17/2022] Open
Abstract
Biomedical applications of nanomaterials are exponentially increasing every year due to analogy to various cell receptors, ligands, structural proteins, and genetic materials (that is, DNA). In bone tissue, nanoscale materials can provide scaffold for excellent tissue repair via mechanical stimulation, releasing of various loaded drugs and mediators, 3D scaffold for cell growth and differentiation of bone marrow stem cells to osteocytes. This review will therefore highlight recent advancements on tissue and nanoscale materials interaction.
Collapse
Affiliation(s)
- Huan Yi
- State Key Laboratory of Bioelectronics (Chien-Shiung Wu Lab), School of Biological Science and Medical Engineering, Southeast University , Nanjing, China
| | - Fawad Ur Rehman
- State Key Laboratory of Bioelectronics (Chien-Shiung Wu Lab), School of Biological Science and Medical Engineering, Southeast University , Nanjing, China
| | - Chunqiu Zhao
- State Key Laboratory of Bioelectronics (Chien-Shiung Wu Lab), School of Biological Science and Medical Engineering, Southeast University , Nanjing, China
| | - Bin Liu
- Department of Biomedical Engineering, School of Basic Medical Sciences, Nanjing Medical University , Nanjing, China
| | - Nongyue He
- State Key Laboratory of Bioelectronics (Chien-Shiung Wu Lab), School of Biological Science and Medical Engineering, Southeast University, Nanjing, China; Hunan Key Laboratory of Green Chemistry and Application of Biological Nanotechnology, Hunan University of Technology, Zhuzhou, China
| |
Collapse
|
131
|
Ge F, Yu M, Yu C, Lin J, Weng W, Cheng K, Wang H. Improved rhBMP-2 function on MBG incorporated TiO 2 nanorod films. Colloids Surf B Biointerfaces 2016; 150:153-158. [PMID: 27914251 DOI: 10.1016/j.colsurfb.2016.11.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 11/11/2016] [Accepted: 11/23/2016] [Indexed: 12/27/2022]
Abstract
In the process of biomaterials mediated bone regeneration, rhBMP-2 delivery at efficient dose in sustained kinetics is crucial for promoting cell osteogenic differentiation. Meanwhile, surface morphology of the biomaterials could regulate cellular responses as well as strengthen the rhBMP-2 interaction with cells for better bone induction. Herein, TiO2 nanorod films with varied mesoporous bioactive glass (MBG) incorporation amount were designed to strengthen the efficacy of rhBMP-2, basing on optimized loading/release behaviors and surface nanostructure cooperatively. The MBG incorporation improved rhBMP-2 loading amount and regulated its release behavior. Consequently, the osteogenic differentiation of bone marrow-derived mesenchymal stem cells (BMSCs) on the incorporated films was extremely enhanced, and the incorporated nanorod film with 200nm MBG thickness exhibited the best osteoinduction effect. However, MBG film and the incorporated nanorod film had the same loading amount of rhBMP-2, the latter showed a much higher expression of 7-day osteogenic differentiation index than the former, which could be attributed to the synergistic effect of optimized rhBMP-2 release behavior and surface morphology. The MBG incorporated TiO2 nanorod films here presents a promising strategy for enhancing osteoinduction through optimized rhBMP-2 release behavior.
Collapse
Affiliation(s)
- Fei Ge
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
| | - Mengfei Yu
- The First Affiliated Hospital of Medical College, Zhejiang University, Hangzhou 310003, China
| | - Cuixia Yu
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
| | - Jun Lin
- The First Affiliated Hospital of Medical College, Zhejiang University, Hangzhou 310003, China
| | - Wenjian Weng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China.
| | - Kui Cheng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
| | - Huiming Wang
- The First Affiliated Hospital of Medical College, Zhejiang University, Hangzhou 310003, China.
| |
Collapse
|
132
|
Ding Z, Fan Z, Huang X, Lu Q, Xu W, Kaplan DL. Silk-Hydroxyapatite Nanoscale Scaffolds with Programmable Growth Factor Delivery for Bone Repair. ACS APPLIED MATERIALS & INTERFACES 2016; 8:24463-70. [PMID: 27579921 DOI: 10.1021/acsami.6b08180] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Osteoinductive biomaterials are attractive for repairing a variety of bone defects, and biomimetic strategies are useful toward developing bone scaffolds with such capacity. Here, a multiple biomimetic design was developed to improve the osteogenesis capacity of composite scaffolds consisting of hydroxyapatite nanoparticles (HA) and silk fibroin (SF). SF nanofibers and water-dispersible HA nanoparticles were blended to prepare the nanoscaled composite scaffolds with a uniform distribution of HA with a high HA content (40%), imitating the extracellular matrix (ECM) of bone. Bone morphogenetic protein-2 (BMP-2) was loaded in the SF scaffolds and HA to tune BMP-2 release. In vitro studies showed the preservation of BMP-2 bioactivity in the composite scaffolds, and programmable sustained release was achieved through adjusting the ratio of BMP-2 loaded on SF and HA. In vitro and in vivo osteogenesis studies demonstrated that the composite scaffolds showed improved osteogenesis capacity under suitable BMP-2 release conditions, significantly better than that of BMP-2 loaded SF-HA composite scaffolds reported previously. Therefore, these biomimetic SF-HA nanoscaled scaffolds with tunable BMP-2 delivery provide preferable microenvironments for bone regeneration.
Collapse
Affiliation(s)
- Zhaozhao Ding
- School of Biology and Basic Medical Sciences & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, People's Republic of China
| | - Zhihai Fan
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University , Suzhou 215000, People's Republic of China
| | - Xiaowei Huang
- National Engineering Laboratory for Modern Silk, Soochow University , Suzhou 215123, People's Republic of China
| | - Qiang Lu
- School of Biology and Basic Medical Sciences & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, People's Republic of China
- National Engineering Laboratory for Modern Silk, Soochow University , Suzhou 215123, People's Republic of China
| | - Weian Xu
- School of Biology and Basic Medical Sciences & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, People's Republic of China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University , Medford, Massachusetts 02155, United States
| |
Collapse
|
133
|
Baino F, Fiorilli S, Vitale-Brovarone C. Bioactive glass-based materials with hierarchical porosity for medical applications: Review of recent advances. Acta Biomater 2016; 42:18-32. [PMID: 27370907 DOI: 10.1016/j.actbio.2016.06.033] [Citation(s) in RCA: 140] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/11/2016] [Accepted: 06/28/2016] [Indexed: 11/24/2022]
Abstract
UNLABELLED Bioactive glasses have been traditionally used in the clinical practice to fill and restore osseous defects due to their unique ability to bond to host bone and stimulate new bone growth. In the last decade, a new set of bioactive glasses characterized by a highly ordered mesoporous texture has been developed and studied as a smart platform for the controlled release of biomolecules, in situ therapy and regenerative applications. This review points out the great potential carried by hierarchical bioactive glass scaffolds that exhibit pore scales from the meso- to the macro-range, and their impact in the broad field of tissue engineering, including the emerging applications in contact with soft tissues and diagnostics. Recent advances in the preparation methods of these multiscale constructs (e.g. mono- or multi-phase scaffolds, fibrous meshes, coated systems, porous nanospheres, and composites) are examined, along with their strengths and weaknesses. A bright future is expected for hierarchical systems based on biocompatible mesoporous materials as they can provide a unique set of functionalities, including enhanced bioactivity, local release of ions and drugs to elicit specific therapeutic effects (improved osteogenesis and angiogenesis, antibacterial properties), and implant/drug tracking, which were unthinkable when research on bioactive glasses began. STATEMENT OF SIGNIFICANCE The advent of mesoporous bioactive glasses led to the birth of a new class of multifunctional biomaterials that have been proposed as smart platforms for local drug release and bone regeneration. Furthermore, mesoporous materials have been recently employed in the development of hierarchical macro-mesoporous scaffolds, composites and implantable systems. This reviews summarizes the latest applications of these multiscale biomaterials in tissue engineering, including the emerging applications in contact with soft tissues and diagnostics. The preparation methods, current uses and potential of these constructs and systems are examined and critically discussed to provide a useful, up-to-date contribution to the scientists working in the field.
Collapse
|
134
|
Wu Z, Zheng K, Zhang J, Tang T, Guo H, Boccaccini AR, Wei J. Effects of magnesium silicate on the mechanical properties, biocompatibility, bioactivity, degradability, and osteogenesis of poly(butylene succinate)-based composite scaffolds for bone repair. J Mater Chem B 2016; 4:7974-7988. [DOI: 10.1039/c6tb02429g] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The m-MS/PBSu scaffolds, with a hierarchical porous structure, could promote cell proliferation in vitro and bone regeneration in vivo.
Collapse
Affiliation(s)
- Zhaoying Wu
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Kai Zheng
- Institute of Biomaterials
- Department of Materials Science and Engineering
- University of Erlangen-Nuremberg
- 91058 Erlangen
- Germany
| | - Jue Zhang
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopaedic Implants
- Department of Orthopaedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiaotong University
- School of Medicine
| | - Han Guo
- Shanghai Synchrotron Radiation Facility
- Shanghai Institute of Applied Physics
- Chinese Academy of Sciences
- Shanghai 201800
- P. R. China
| | - Aldo. R. Boccaccini
- Institute of Biomaterials
- Department of Materials Science and Engineering
- University of Erlangen-Nuremberg
- 91058 Erlangen
- Germany
| | - Jie Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| |
Collapse
|