51
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Zhang L, Li Z, Wang DY. Polydopamine-assisted strategies for preparation of fire-safe polymeric materials: A review. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109973] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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52
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Yao C, Lai Y, Chen Y, Cheng C. Bone Morphogenetic Protein‐2‐Activated 3D‐Printed Polylactic Acid Scaffolds to Promote Bone Regrowth and Repair. Macromol Biosci 2020; 20:e2000161. [DOI: 10.1002/mabi.202000161] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/28/2020] [Indexed: 12/28/2022]
Affiliation(s)
- Chun‐Hsu Yao
- Department of Biomedical Imaging and Radiological Science China Medical University Taichung Taiwan 404 Republic of China
- School of Chinese Medicine China Medical University Taichung Taiwan 404 Republic of China
- Biomaterials Translational Research Center China Medical University Hospital Taichung Taiwan 404 Republic of China
- Department of Biomedical Informatics Asia University Taichung Taiwan 413 Republic of China
| | - Yi‐Hui Lai
- Department of Biomedical Imaging and Radiological Science China Medical University Taichung Taiwan 404 Republic of China
| | - Yi‐Wen Chen
- Graduate Institute of Clinical Medical Science China Medical University Taichung Taiwan 404 Republic of China
- Graduate Institute of Biomedical Sciences China Medical University Taichung Taiwan 404 Republic of China
- 3D Printing Medical Research Institute Asia University Taichung Taiwan 413 Republic of China
| | - Cheng‐Hsin Cheng
- Department of Neurosurgery An Nan Hospital China Medical University Tainan Taiwan 709 Republic of China
- Graduate Institute of Medical Science Chang Jung Christian University Tainan Taiwan 711 Republic of China
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Jiang H, Xia Q, Liu D, Ling K. Calcium-cation-doped polydopamine-modified 2D black phosphorus nanosheets as a robust platform for sensitive and specific biomolecule sensing. Anal Chim Acta 2020; 1121:1-10. [PMID: 32493583 DOI: 10.1016/j.aca.2020.04.072] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/29/2020] [Accepted: 04/28/2020] [Indexed: 02/05/2023]
Abstract
Many polymer decorated/modified 2D nanomaterials have been developed as enhanced drug delivery systems and photothermal theranostic nanoagents. However, few reports describe the use of these novel nanomaterials as nanoplatforms for biomolecule sensing. Herein, we used calcium-cation-doped polydopamine-modified (PDA-modified) 2D black phosphorus (BP) nanosheets (BP@PDA) as a sensing nanoplatform for the detection of nucleic acids and proteins in complex biological samples. Fluorescent-dye-labeled single-strand DNA aptamer/probes are adsorbed by the Ca2+-doped BP@PDA mediated by calcium-cation coordination. The PDA coating enhances the stability of the inner BP, provides binding sites to DNA nucleobases, and quenches fluorescence. Without any chemical conjugation, this sensing nanoplatform selectively and specifically detects protein (human thrombin, linear range: 10-25 nM, detection limit: 0.02 nM), single-strand DNA (linear range: 1-10 nM, detection limit: 0.52 nM) in 1% serum diluted samples, and senses intracellular mRNAs (C-myc, and actin) in living cells. The nanoplatform exhibits the advantages of both the 2D nanomaterial (BP) and the coating polymer (PDA), naturally enters living cells unaided by transfection agents, resists enzymatic lysis and shows high biocompatibility. This nanoplatform design contributes towards future biomolecule analytical method development based on polymer decorated/modified 2D nanomaterials.
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Affiliation(s)
- Hongyan Jiang
- Department of Pharmacy, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, China
| | - Qing Xia
- Department of Pharmacy, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, China
| | - Daojun Liu
- Department of Pharmacy, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, China
| | - Kai Ling
- Department of Pharmacy, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, China.
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Sundermann J, Oehmichen S, Sydow S, Burmeister L, Quaas B, Hänsch R, Rinas U, Hoffmann A, Menzel H, Bunjes H. Varying the sustained release of BMP-2 from chitosan nanogel-functionalized polycaprolactone fiber mats by different polycaprolactone surface modifications. J Biomed Mater Res A 2020; 109:600-614. [PMID: 32608183 DOI: 10.1002/jbm.a.37045] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 06/23/2020] [Indexed: 12/16/2022]
Abstract
Polycaprolactone (PCL) fiber mats with different surface modifications were functionalized with a chitosan nanogel coating to attach the growth factor human bone morphogenetic protein 2 (BMP-2). Three different hydrophilic surface modifications were compared with regard to the binding and in vitro release of BMP-2. The type of surface modification and the specific surface area derived from the fiber thickness had an important influence on the degree of protein loading. Coating the PCL fibers with polydopamine resulted in the binding of the largest BMP-2 quantity per surface area. However, most of the binding was irreversible over the investigated period of time, causing a low release in vitro. PCL fiber mats with a chitosan-graft-PCL coating and an additional alginate layer, as well as PCL fiber mats with an air plasma surface modification boundless BMP-2, but the immobilized protein could almost completely be released. With polydopamine and plasma modifications as well as with unmodified PCL, high amounts of BMP-2 could also be attached directly to the surface. Integration of BMP-2 into the chitosan nanogel functionalization considerably increased binding on all hydrophilized surfaces and resulted in a sustained release with an initial burst release of BMP-2 without detectable loss of bioactivity in vitro.
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Affiliation(s)
- Julius Sundermann
- Technische Universität Braunschweig, Institut für Pharmazeutische Technologie und Biopharmazie, Braunschweig, Germany
| | - Sarah Oehmichen
- Technische Universität Braunschweig, Institut für Technische Chemie, Braunschweig, Germany
| | - Steffen Sydow
- Technische Universität Braunschweig, Institut für Technische Chemie, Braunschweig, Germany
| | - Laura Burmeister
- Niedersächsisches Zentrum für Biomedizintechnik, Implantatforschung und Entwicklung (NIFE), Hannover, Germany.,Medizinische Hochschule Hannover (MHH), Labor für Biomechanik und Biomaterialien, Orthopädische Klinik, Gradierte Implantate und Regenerative Strategien im Skelettsystem, Hannover, Germany
| | - Bastian Quaas
- Leibniz Universität Hannover, Institut für Technische Chemie, Hannover, Germany
| | - Robert Hänsch
- Technische Universität Braunschweig, Institut für Pflanzenbiologie, Braunschweig, Germany.,Center of Molecular Ecophysiology (CMEP), College of Resources and Environment, Southwest University, Chongqing, China
| | - Ursula Rinas
- Leibniz Universität Hannover, Institut für Technische Chemie, Hannover, Germany.,Helmholtz-Zentrum für Infektionsforschung, Braunschweig, Germany
| | - Andrea Hoffmann
- Niedersächsisches Zentrum für Biomedizintechnik, Implantatforschung und Entwicklung (NIFE), Hannover, Germany.,Medizinische Hochschule Hannover (MHH), Labor für Biomechanik und Biomaterialien, Orthopädische Klinik, Gradierte Implantate und Regenerative Strategien im Skelettsystem, Hannover, Germany
| | - Henning Menzel
- Technische Universität Braunschweig, Institut für Technische Chemie, Braunschweig, Germany
| | - Heike Bunjes
- Technische Universität Braunschweig, Institut für Pharmazeutische Technologie und Biopharmazie, Braunschweig, Germany
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Godoy-Gallardo M, Portolés-Gil N, López-Periago AM, Domingo C, Hosta-Rigau L. Multi-layered polydopamine coatings for the immobilization of growth factors onto highly-interconnected and bimodal PCL/HA-based scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 117:111245. [PMID: 32919623 DOI: 10.1016/j.msec.2020.111245] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/05/2020] [Accepted: 06/27/2020] [Indexed: 11/28/2022]
Abstract
For bone tissue engineering applications, scaffolds that mimic the porous structure of the extracellular matrix are highly desirable. Herein, we employ a PCL/HA-based scaffold with a double-scaled architecture of small pores coupled to larger ones. To improve the osteoinductivity of the scaffold, we incorporate two different growth factors via polydopamine (PDA) coating. As a first step, we identify the maximum amount of PDA that can be deposited onto the scaffold. Next, to allow for the deposition of a second PDA layer which, in turn, will allow to increase the loading of growth factors, we incorporate a dithiol connecting layer. The thiol groups covalently react with the first PDA coating through Michael addition while also allowing for the incorporation of a second PDA layer. We load the first and second PDA layers with bone morphogenic protein-2 (BMP2) and vascular endothelial growth factor (VEGF), respectively, and evaluate the osteogenic potential of the functionalised scaffold by cell viability, alkaline phosphatase activity and the expression of three different osteogenesis-related genes of pre-seeded human mesenchymal stem cells. Through these studies, we demonstrate that the osteogenic activity of the scaffolds loaded with both BMP2 and VEGF is greater than scaffolds loaded only with BMP2. Importantly, the osteoinductivity is higher when the scaffolds are loaded with BMP2 and VEGF in two different PDA layers. Taken together, these results indicate that the as-prepared scaffolds could be a useful construct for bone-tissue applications.
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Affiliation(s)
- Maria Godoy-Gallardo
- Department of Health Technology, Centre for Nanomedicine and Theranostics, DTU Health Tech, Technical University of Denmark, Produktionstorvet, Building 423, 2800 Kgs. Lyngby, Denmark
| | - Núria Portolés-Gil
- Institute of Materials Science of Barcelona (ICMAB-CSIC), Campus de la UAB s/n, 08193 Bellaterra, Spain
| | - Ana M López-Periago
- Institute of Materials Science of Barcelona (ICMAB-CSIC), Campus de la UAB s/n, 08193 Bellaterra, Spain
| | - Concepción Domingo
- Institute of Materials Science of Barcelona (ICMAB-CSIC), Campus de la UAB s/n, 08193 Bellaterra, Spain
| | - Leticia Hosta-Rigau
- Department of Health Technology, Centre for Nanomedicine and Theranostics, DTU Health Tech, Technical University of Denmark, Produktionstorvet, Building 423, 2800 Kgs. Lyngby, Denmark.
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Firoozi N, Kang Y. Immobilization of FGF on Poly(xylitol dodecanedioic Acid) Polymer for Tissue Regeneration. Sci Rep 2020; 10:10419. [PMID: 32591607 PMCID: PMC7320172 DOI: 10.1038/s41598-020-67261-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 05/29/2020] [Indexed: 12/11/2022] Open
Abstract
Fibroblast growth factor (FGF) plays a vital role in the repair and regeneration of most tissues. However, its low stability, short half-life, and rapid inactivation by enzymes in physiological conditions affect their clinical applications. Therefore, to increase the effectiveness of growth factors and to improve tissue regeneration, we developed an elastic polymeric material poly(xylitol dodecanedioic acid) (PXDDA) and loaded FGF on the PXDDA for sustained drug delivery. In this study, we used a simple dopamine coating method to load FGF on the surface of PXDDA polymeric films. The polydopamine-coated FGF-loaded PXDDA samples were then characterized using FTIR and XRD. The in vitro drug release profile of FGF from PXDDA film and cell growth behavior were measured. Results showed that the polydopamine layer coated on the surface of the PXDDA film enhanced the immobilization of FGF and controlled its sustained release. Human fibroblast cells attachment and proliferation on FGF-immobilized PXDDA films were much higher than the other groups without coatings or FGF loading. Based on our results, the surface modification procedure with immobilizing growth factors shows excellent application potential in tissue regeneration.
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Affiliation(s)
- Negar Firoozi
- Department of Ocean & Mechanical Engineering, Florida Atlantic University, 777 Glades Road, Boca Raton, Florida, 33431, United States
| | - Yunqing Kang
- Department of Ocean & Mechanical Engineering, Florida Atlantic University, 777 Glades Road, Boca Raton, Florida, 33431, United States.
- Department of Biomedical Science, Florida Atlantic University, 777 Glades Road, Boca Raton, Florida, 33431, United States.
- Integrative Biology Ph.D. Program, Department of Biological Science, Florida Atlantic University, 777 Glades Road, Boca Raton, Florida, 33431, United States.
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Ahmad T, Byun H, Shin HJ, Lee J, Madhurakkat Perikamana SK, Kim EM, Shin YM, Shin H. Polydopamine-assisted one-step modification of nanofiber surfaces with adenosine to tune the osteogenic differentiation of mesenchymal stem cells and the maturation of osteoclasts. Biomater Sci 2020; 8:2825-2839. [PMID: 32343757 DOI: 10.1039/c9bm01990a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Adenosine and its receptors have emerged as alternative targets to control cellular functions for bone healing. However, the soluble delivery of adenosine has not proven effective because of its fast degradation in vivo. We therefore designed a stable coating of adenosine for biomaterial surfaces through polydopamine chemistry to control osteogenesis and osteoclastogenesis via A2bR signaling. First, we prepared electrospun poly (ι-lactic acid) (PLLA) nanofiber sheets, which were modified through a one-step adenosine polydopamine coating process. Scanning electron microscopy (SEM) revealed deposition of particles on the adenosine polydopamine-coated PLLA (AP-PL) sheets compared to the polydopamine-only sheets. Moreover, X-ray photoelectron spectroscopy analysis confirmed an increase in nitrogen signals due to adenosine. Furthermore, adenosine loading efficiency and retention were significantly enhanced in AP-PL sheets compared to polydopamine-only sheets. Human adipose-derived stem cells (hADSCs) cultured on AP-PL expressed A2bR (1.30 ± 0.19 fold) at significantly higher levels than those cultured on polydopamine-only sheets. This in turn significantly elevated the expression of Runx2 (16.94 ± 1.68 and 51.69 ± 0.07 fold), OPN (1.63 ± 0.16 and 30.56 ± 0.25 fold), OCN (1.16 ± 0.13 and 5.23 ± 0.16 fold), and OSX (10.01 ± 0.81 and 62.48 ± 0.25 fold) in cells grown in growth media on days 14 and 21, respectively. Similarly, mineral deposition was enhanced to a greater extent in the AP-PL group than the polydopamine group, while blocking of A2bR significantly downregulated osteogenesis. Finally, osteoclast differentiation of RAW 264.7 cells was significantly inhibited by growth on AP-PL sheets. However, osteoclast differentiation was significantly stimulated after A2bR was blocked. Taken together, we propose that polydopamine-assisted one-step coating of adenosine is a viable method for surface modification of biomaterials to control osteogenic differentiation of stem cells and bone healing.
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Affiliation(s)
- Taufiq Ahmad
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea.
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Wu Z, Bao C, Zhou S, Yang T, Wang L, Li M, Li L, Luo E, Yu Y, Wang Y, Guo X, Liu X. The synergetic effect of bioactive molecule-loaded electrospun core-shell fibres for reconstruction of critical-sized calvarial bone defect-The effect of synergetic release on bone Formation. Cell Prolif 2020; 53:e12796. [PMID: 32202021 PMCID: PMC7162799 DOI: 10.1111/cpr.12796] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 02/18/2020] [Accepted: 02/26/2020] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES Bone regeneration is a complex process modulated by multiple growth factors and hormones during long regeneration period; thus, designing biomaterials with the capacity to deliver multiple bioactive molecules and obtain sustained release has gained an increasing popularity in recent years. This study is aimed to evaluate the effect of a novel core-shell electrospun fibre loaded with dexamethasone (DEX) and bone morphogenetic protein-2 (BMP-2) on bone regeneration. MATERIALS AND METHODS The core-shell electrospun fibres were fabricated by coaxial electrospinning technology, which were composed of poly-D, L-lactide (PLA) shell and poly (ethylene glycol) (PEG) core embedded with BMP-2 and DEX-loaded micelles. Morphology, hydrophilicity, gradation, release profile of BMP-2 and DEX, and cytological behaviour on bone marrow mesenchymal stem cells (BMSCs) were characterized. Furthermore, the effect on bone regeneration was evaluated via critical-sized calvarial defect model. RESULTS The electrospun fibres were featured by the core-shell fibrous architecture and a suitable degradation rate. The sustained release of DEX and BMP-2 was up to 562 hours. The osteogenic gene expression and calcium deposition of BMSCs were significantly enhanced, indicating the osteoinduction capacity of electrospun fibres. This core-shell fibre could accelerate repair of calvarial defects in vivo via synergistic effect. CONCLUSIONS This core-shell electrospun fibre loaded with DEX and BMP-2 can act synergistically to enhance bone regeneration, which stands as a strong potential candidate for repairing bone defects.
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Affiliation(s)
- Zhenzhen Wu
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
- Department of Periodontology and ImplantologyStomatological HospitalSouthern Medical UniversityGuangzhouChina
| | - Chongyun Bao
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Shaobing Zhou
- Key Laboratory of Advanced Technologies of MaterialsMinistry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduChina
| | - Tao Yang
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Liao Wang
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Mingzheng Li
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Long Li
- Key Laboratory of Advanced Technologies of MaterialsMinistry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduChina
| | - En Luo
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Yingjie Yu
- Department of Biomedical EngineeringTufts UniversityMedfordMAUSA
| | - Yushu Wang
- Department of Biomedical EngineeringTufts UniversityMedfordMAUSA
| | - Xiaodong Guo
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Xian Liu
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
- Key Laboratory of Advanced Technologies of MaterialsMinistry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduChina
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Yao Q, Fuglsby KE, Zheng X, Sun H. Nanoclay-functionalized 3D nanofibrous scaffolds promote bone regeneration. J Mater Chem B 2020; 8:3842-3851. [PMID: 32219244 DOI: 10.1039/c9tb02814e] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Developing a biomaterial that can promote osteoblastic differentiation, thereby reducing the needs of exogenous osteogenic factors for large bone repair, has been a significant and long-term technical hurdle. In this study, we developed an innovative nanoclay (nanosilicate, NS)-functionalized 3D gelatin nanofibrous scaffold (GF/NS) through a thermally induced phase separation method together with the particle leaching technique (TIPS&P). In addition to the significantly higher mechanical strength, the composite scaffolds (GF/NS) demonstrated a significantly stronger ability to promote the osteogenic differentiation of human mesenchymal stem cells (hMSCs) in vitro compared to the GF scaffold. Our data further revealed that this intriguing pro-osteoblastic functionality was largely because of the unique features of NS, particularly, the strong binding ability to pro-osteoblastic factors (e.g., BMP2) as well as the intrinsic osteoinductivity of its bioactive degradation products. Most importantly, our in vivo studies indicated that GF/NS scaffolds significantly improved low-dose BMP2-induced ectopic bone regeneration in mice.
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Affiliation(s)
- Qingqing Yao
- Institute of Advanced Materials for Nano-Bio Applications, School of Ophthalmology and Optometry/School of Biomedical Engineering, State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
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Ao Q, Wang S, He Q, Ten H, Oyama K, Ito A, He J, Javed R, Wang A, Matsuno A. Fibrin Glue/Fibronectin/Heparin-Based Delivery System of BMP2 Induces Osteogenesis in MC3T3-E1 Cells and Bone Formation in Rat Calvarial Critical-Sized Defects. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13400-13410. [PMID: 32091872 DOI: 10.1021/acsami.0c01371] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Bone morphogenetic proteins (BMPs) have been used to promote bone formation in many clinical scenarios. However, the BMPs are inherently unstable in vivo and therefore need to be combined with carriers for controlled delivery. In this study, an innovative and efficient fibrin glue/fibronectin/heparin (FG/Fn/Hep)-based delivery system was developed for controlled release of BMP2. The incorporation of heparin can significantly slow the release of BMP2 without substantially affecting the structure and stiffness of the FG/Fn. The BMP2 release from the FG/Fn/Hep-BMP2 hydrogel is largely dominated by hydrogel degradation rather than simple diffusion. In vitro release experiments and MC3T3-E1 cell induction experiments showed that BMP2 can be released steadily and can induce MC3T3-E1 cells to differentiate into osteoblasts efficiently. This process is characterized by the significantly increased expression of calcium deposits, alkaline phosphatase, runt-related transcription factor-2, osteopontin, osteocalcin, and collagen I in comparison with the negative control. In vivo assessments revealed that the FG/Fn/Hep-BMP2 hydrogel significantly promotes bone regeneration in a rat calvarial critical-sized defect model. Our investigation indicates that FG/Fn/Hep-BMP2 hydrogel holds promise to be used as an alternative biomaterial for the repair of bone defects.
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Affiliation(s)
- Qiang Ao
- Department of Tissue Engineering, China Medical University, Shenyang 110122, China
- Institute of Regulatory Science for Medical Device, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Shilin Wang
- Department of Tissue Engineering, China Medical University, Shenyang 110122, China
| | - Qing He
- State Key Laboratory of Biomembrane and Membrane Biotechnology, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Hirotomo Ten
- Department of Neurosurgery, Teikyo University School of Medicine, Tokyo 163-8001, Japan
| | - Kenichi Oyama
- Department of Neurosurgery, Teikyo University School of Medicine, Tokyo 163-8001, Japan
| | - Akihiro Ito
- Department of Neurosurgery, Teikyo University School of Medicine, Tokyo 163-8001, Japan
| | - Jing He
- Department of Tissue Engineering, China Medical University, Shenyang 110122, China
| | - Rabia Javed
- Department of Tissue Engineering, China Medical University, Shenyang 110122, China
| | - Aijun Wang
- Surgical Bioengineering Laboratory, Department of Surgery, School of Medicine, University of California, Davis, Sacramento, California 95817, United States
| | - Akira Matsuno
- Department of Neurosurgery, Teikyo University School of Medicine, Tokyo 163-8001, Japan
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Wu T, Ding M, Shi C, Qiao Y, Wang P, Qiao R, Wang X, Zhong J. Resorbable polymer electrospun nanofibers: History, shapes and application for tissue engineering. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.07.033] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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62
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Li X, Yin HM, Luo E, Zhu S, Wang P, Zhang Z, Liao GQ, Xu JZ, Li ZM, Li JH. Accelerating Bone Healing by Decorating BMP-2 on Porous Composite Scaffolds. ACS APPLIED BIO MATERIALS 2019; 2:5717-5726. [PMID: 35021565 DOI: 10.1021/acsabm.9b00761] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xiang Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Hua-Mo Yin
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - En Luo
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Songsong Zhu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Peng Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Zhen Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Gui-Qing Liao
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Jia-Zhuang Xu
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Ji-Hua Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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Xiao J, Luo H, Ao H, Huang Y, Yao F, Zhang Q, Wan Y. A rhBMP-2-loaded three-dimensional mesoporous bioactive glass nanotubular scaffold prepared from bacterial cellulose. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123838] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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64
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Abinaya B, Prasith TP, Ashwin B, Viji Chandran S, Selvamurugan N. Chitosan in Surface Modification for Bone Tissue Engineering Applications. Biotechnol J 2019; 14:e1900171. [DOI: 10.1002/biot.201900171] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 08/30/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Balakrishnan Abinaya
- Department of BiotechnologySchool of BioengineeringSRM Institute of Science and Technology Kattankulathur 603203 Tamil Nadu India
| | - Tandiakkal Prakash Prasith
- Department of BiotechnologySchool of BioengineeringSRM Institute of Science and Technology Kattankulathur 603203 Tamil Nadu India
| | - Badrinath Ashwin
- Department of BiotechnologySchool of BioengineeringSRM Institute of Science and Technology Kattankulathur 603203 Tamil Nadu India
| | - Syamala Viji Chandran
- Department of BiotechnologySchool of BioengineeringSRM Institute of Science and Technology Kattankulathur 603203 Tamil Nadu India
| | - Nagarajan Selvamurugan
- Department of BiotechnologySchool of BioengineeringSRM Institute of Science and Technology Kattankulathur 603203 Tamil Nadu India
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Xie C. Bio‐inspired nanofunctionalisation of biomaterial surfaces: a review. BIOSURFACE AND BIOTRIBOLOGY 2019. [DOI: 10.1049/bsbt.2019.0009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Chaoming Xie
- Key Laboratory of Advanced Technologies of MaterialsMinistry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduSichuan610031People's Republic of China
- School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengduSichuan610031People's Republic of China
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Wang Y, Qi H, Miron RJ, Zhang Y. Modulating macrophage polarization on titanium implant surface by poly(dopamine)-assisted immobilization of IL4. Clin Implant Dent Relat Res 2019; 21:977-986. [PMID: 31373150 DOI: 10.1111/cid.12819] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 05/14/2019] [Accepted: 06/29/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND In the past few decades, very little research has been carried out to modify implant surfaces to improve osteointegration through the regulation of immune cells. PURPOSE The aim of this study is to investigate whether the poly(dopamine) (pDA)-assisted immobilization of IL4 on titanium surfaces could modulate the inflammatory profile of macrophages in vitro and search for the possibility of enhancing implant integration in this way. MATERIAL AND METHODS The surface composition, topography, and roughness of SLA, SLA-pDA, and SLA-pDA-IL4 discs were examined by scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). Then the releasing profile of the SLA-pDA-IL4 implants was recorded for 1 week and the bioactivity of released IL4 was investigated by ELISA. Then macrophage polarization was investigated via three methods including: (a) surface marker via immunofluorescence; (b) mRNA levels of M1 and M2 polarization markers via real-time PCR, and (c) cytokine release via ELISA. RESULTS SEM and EDS revealed that pDA and IL4 were coated successfully on SLA surfaces. The ELISA results showed that IL4 remained its bioactivity on SLA surface and were immobilized on the SLA surface. The immobilization of IL4 through pDA has no significant influence on the attachment, morphology, and proliferation of macrophages, while it increased the M2/M1 proportion in human macrophages revealed by immunofluorescence. The real-time PCR and ELISA results demonstrated that SLA-pDA-IL4 surface reduced the pro-inflammatory profile compared with SLA-pDA and SLA surfaces. CONCLUSIONS The SLA-pDA-IL4 surfaces described here is able to activate adherent macrophages into M2 phenotype and reduce the release of pro-inflammatory cytokines. Immobilization of IL4 via pDA is convenient and effective, thus providing an applicable way to control macrophage behavior upon implant insertion and is anticipated to accelerating further bone integration.
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Affiliation(s)
- Yulan Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Haoning Qi
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Richard J Miron
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Yufeng Zhang
- Department of Oral Implantology, School of Stomatology, Wuhan University, Wuhan, Hubei, China
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Li L, Li Y, Yang L, Yu F, Zhang K, Jin J, Shi J, Zhu L, Liang H, Wang X, Jiang Q. Polydopamine coating promotes early osteogenesis in 3D printing porous Ti6Al4V scaffolds. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:240. [PMID: 31317010 PMCID: PMC6603351 DOI: 10.21037/atm.2019.04.79] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 04/17/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND Titanium implants are widely used in orthopedic and dental for more than 30 years. Its stable physicochemical properties and mechanical strength are indeed appropriate for implantation. However, the Bioinertia oxidized layer and higher elastic modulus often lead to the early implantation failure. METHODS In this study, we proposed a simple design of porous structure to minimize the disparity between scaffold and natural bone tissue, and introduced a one-step reaction to form a polydopamine (PDA) layer on the surface of titanium for the purpose of improving osteogenesis as well. The porous scaffolds with pore size of 400 µm and porosity of 44.66% were made by additive manufacturing. The cell behavior was tested by seeding MC3T3-E1 cells on Ti6Al4V films for 15 days. The biomechanical properties were then analyzed by finite element (FE) method and the in vivo osteogenesis effect was accordingly evaluated by implanting the scaffolds for 5 weeks in rabbits. RESULTS According to the achieved results, it was revealed that the immersion for 40 min with dopamine could significantly improve the cell adhesion. The proposed method for design of porous structure can avoid the stress shielding effect and bone growth inside the PDA coating scaffolds, which were observed at the early stage of bone healing process. CONCLUSIONS It can be concluded that the proposed PDA coating method is effective in promoting early osteogenesis, as well as being easy to operate, and can be helpful in the future clinical application of titanium implants.
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Affiliation(s)
- Lan Li
- School of Mechanical Engineering, Southeast University, Nanjing 210000, China
- Department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital affiliated to Medical School of Nanjing University, Nanjing 210000, China
- Institute of Medical 3D Printing, Nanjing University, Nanjing 210000, China
| | - Yixuan Li
- Department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital affiliated to Medical School of Nanjing University, Nanjing 210000, China
| | - Longfei Yang
- School of Mechanical Engineering, Southeast University, Nanjing 210000, China
| | - Fei Yu
- Drum Tower of Clinical Medicine, Nanjing Medical University, Nanjing 210000, China
| | - Kaijia Zhang
- Department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital affiliated to Medical School of Nanjing University, Nanjing 210000, China
| | - Jing Jin
- Department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital affiliated to Medical School of Nanjing University, Nanjing 210000, China
| | - Jianping Shi
- School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210000, China
| | - Liya Zhu
- School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210000, China
| | - Huixin Liang
- School of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210000, China
| | - Xingsong Wang
- School of Mechanical Engineering, Southeast University, Nanjing 210000, China
| | - Qing Jiang
- Department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital affiliated to Medical School of Nanjing University, Nanjing 210000, China
- Institute of Medical 3D Printing, Nanjing University, Nanjing 210000, China
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Li X, Yin HM, Su K, Zheng GS, Mao CY, Liu W, Wang P, Zhang Z, Xu JZ, Li ZM, Liao GQ. Polydopamine-Assisted Anchor of Chitosan onto Porous Composite Scaffolds for Accelerating Bone Regeneration. ACS Biomater Sci Eng 2019; 5:2998-3006. [PMID: 33405654 DOI: 10.1021/acsbiomaterials.9b00209] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Surface function has an importance for the bioactivity of porous polymeric scaffolds. The goal of the present study is to immobilize highly bioactive chitosan (CS) onto the surface of porous composite scaffolds to accelerate bone regeneration. Porous poly(ε-caprolactone) (PCL)/bioactive glass (BG) composite scaffolds with strong anchor of CS were fabricated via mussel-inspired polydopamine (PDA) coating as a bridging layer. In vitro cell culture showed that firm immobilization of CS onto the composite scaffolds significantly enhanced protein adsorption, cell adhesion, and osteogenic differentiation compared to CS-decorated scaffolds via physical adsorption. In vivo assessments demonstrated that covalent immobilization of CS onto the surface of scaffolds obviously promoted cranial bone regeneration in comparison with the counterparts with physical adsorption of CS. The proposed method offers a feasible and effective means to fabricate artificial bioactive scaffolds for bone tissue engineering application.
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Affiliation(s)
- Xiang Li
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Hua-Mo Yin
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Kai Su
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Guang-Sen Zheng
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Chao-Ying Mao
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Wei Liu
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Peng Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Zhen Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jia-Zhuang Xu
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Gui-Qing Liao
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
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Yin D, Komasa S, Yoshimine S, Sekino T, Okazaki J. Effect of mussel adhesive protein coating on osteogenesis in vitro and osteointegration in vivo to alkali-treated titanium with nanonetwork structures. Int J Nanomedicine 2019; 14:3831-3843. [PMID: 31213804 PMCID: PMC6536716 DOI: 10.2147/ijn.s206313] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 04/17/2019] [Indexed: 11/23/2022] Open
Abstract
Purpose: On the basis of reasonable superposition of various surface treatment methods, alkali-treated titanium with nanonetwork structures (TNS) was coated with mussel adhesive protein (MAP) and named TNS-MAP. The aims were to optimize the biological properties of TNS, endue it with new properties, and enhance its utility in clinical dental applications. Methods: TNS disks were coated with MAP and the product surface was characterized. Its osteogenic properties were determined by evaluating its effects on cell adhesion, cell proliferation, the expression of osteogenesis-related genes, and in vivo experiments. Results: The treated materials showed excellent hydrophilicity, good surface roughness, and advantages of both TNS and MAP. TNS-MAP significantly promoted initial cell attachment especially after 15 mins and 30 mins. At every time point, cell adhesion and proliferation, the detection rate of osteogenesis-related markers in the extracellular matrix, and the expression of osteogenesis-related genes were markedly superior on TNS-MAP than the control. The in vivo experiments revealed that TNS-MAP promoted new bone growth around the implants and the bone-implant interface. Conclusion: We verified through in vitro and in vivo experiments that we successfully created an effective TNS-MAP composite implant with excellent biocompatibility and advantages of both its TNS and MAP parent materials. Therefore, the new biocomposite implant material TNS-MAP may potentially serve in practical dentistry and orthopedics.
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Affiliation(s)
- Derong Yin
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, Hirakata, Osaka, Japan
| | - Satoshi Komasa
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, Hirakata, Osaka, Japan
| | - Shigeki Yoshimine
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, Hirakata, Osaka, Japan
| | - Tohru Sekino
- Advanced Hard Materials, The Institute of Scientific and Industrial Research, Osaka University, Suita, Osaka, Japan
| | - Joji Okazaki
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, Hirakata, Osaka, Japan
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Liu G, Li Y, Yang S, Zhao Y, Lu T, Jia W, Ji X, Luo Y. DOPA-IGF-1 Coated HA/PLGA Microspheres Promoting Proliferation and Osteoclastic Differentiation of Rabbit Bone Mesenchymal Stem Cells. Chem Res Chin Univ 2019. [DOI: 10.1007/s40242-019-9007-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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71
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Han L, He Y, An R, Wang X, Zhang Y, Shi L, Ran R. Mussel-inspired, robust and self-healing nanocomposite hydrogels: Effective reusable absorbents for removal both anionic and cationic dyes. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.02.054] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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72
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Abbasizadeh N, Rezayan AH, Nourmohammadi J, Kazemzadeh-Narbat M. HHC-36 antimicrobial peptide loading on silk fibroin (SF)/hydroxyapatite (HA) nanofibrous-coated titanium for the enhancement of osteoblast and bactericidal functions. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1596913] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Nastaran Abbasizadeh
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Ali Hossein Rezayan
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Jhamak Nourmohammadi
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Mehdi Kazemzadeh-Narbat
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
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Jia L, Han F, Wang H, Zhu C, Guo Q, Li J, Zhao Z, Zhang Q, Zhu X, Li B. Polydopamine-assisted surface modification for orthopaedic implants. J Orthop Translat 2019; 17:82-95. [PMID: 31194087 PMCID: PMC6551362 DOI: 10.1016/j.jot.2019.04.001] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 03/27/2019] [Accepted: 04/03/2019] [Indexed: 01/03/2023] Open
Abstract
Along with the massive use of implants in orthopaedic surgeries in recent few decades, there has been a tremendous demand for the surface modification of the implants to avoid surgery failure and improve their function. Polydopamine (PDA), being able to adhere to almost all kinds of substrates and possessing copious functional groups for covalently immobilizing biomolecules and anchoring metal ions, has been widely used for surface modification of materials since its discovery in the last decade. PDA and its derivatives can be used for the surface modification of orthopaedic implants to modulate cellular responses, including cell spreading, migration, proliferation, and differentiation, and may thereby enhance the function of existing implants. In addition, the osseointegration and antimicrobial properties of orthopaedic implants may also be improved by PDA-based coatings. The aim of this review is to provide a brief overview of current advances of surface modification technologies for orthopaedic implants using PDA and its derivatives as a medium. Given the versatility of PDA-based adhesion, such PDA-assisted surface modification technologies will certainly benefit the development of new orthopaedic implants. THE TRANSLATIONAL POTENTIAL OF THIS ARTICLE Surface treatments of orthopaedic implants, which are normally inert materials, are essential for their performance in vivo. This review summarizes recent advances in the surface modification of orthopaedic implants using facile and highly versatile techniques based on the use of polydopamine (PDA) and its derivatives.
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Affiliation(s)
- Luanluan Jia
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou, Jiangsu, China
| | - Fengxuan Han
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou, Jiangsu, China
| | - Huan Wang
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| | - Caihong Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou, Jiangsu, China
| | - Qianping Guo
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou, Jiangsu, China
| | - Jiaying Li
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou, Jiangsu, China
| | - Zhongliang Zhao
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou, Jiangsu, China
| | - Qiang Zhang
- Second Orthopedics Department, Pingxiang Traditional Chinese Medicine Hospital, Pingxiang, Jiangxi, China
| | - Xuesong Zhu
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| | - Bin Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou, Jiangsu, China
- China Orthopaedic Regenerative Medicine Group (CORMed), Hangzhou, Zhejiang, China
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Ma Y, Hu N, Liu J, Zhai X, Wu M, Hu C, Li L, Lai Y, Pan H, Lu WW, Zhang X, Luo Y, Ruan C. Three-Dimensional Printing of Biodegradable Piperazine-Based Polyurethane-Urea Scaffolds with Enhanced Osteogenesis for Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2019; 11:9415-9424. [PMID: 30698946 DOI: 10.1021/acsami.8b20323] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Synthetic biodegradable polymeric scaffolds with uniformly interconnected pore structure, appropriate mechanical properties, excellent biocompatibility, and even enhanced osteogenesis ability are urgently required for in situ bone regeneration. In this study, for the first time, a series of biodegradable piperazine (PP)-based polyurethane-urea (P-PUU) scaffolds with a gradient of PP contents were developed by air-driven extrusion 3D printing technology. The P-PUU ink of 60 wt % concentration was demonstrated to have appropriate viscosity for scaffold fabrication. The 3D-printed P-PUU scaffolds exhibited an interconnected porous structure of about 450 μm in macropore size and about 75% in porosity. By regulating the contents of PP in P-PUU scaffolds, their mechanical properties could be moderated, and P-PUU1.4 scaffolds with the highest PP contents exhibited the highest compressive modulus (155.9 ± 5.7 MPa) and strength (14.8 ± 1.1 MPa). Moreover, both in vitro and in vivo biological results suggested that the 3D-printed P-PUU scaffolds possessed excellent biocompatibility and osteoconductivity to facilitate new bone formation. The small molecular PP itself was confirmed for the first time to regulate osteogenesis of osteoblasts in a dose-dependent manner and the optimum concentration for osteoconductivity was about ∼0.5 mM, which suggests that PP molecules, together with the mechanical behavior, nitrogen-contents, and hydrophilicity of P-PUUs, play an important role in enhancing the osteoconductive ability of P-PUU scaffolds. Therefore, the 3D-printed P-PUU scaffolds, with suitable interconnected pore structure, appropriate mechanical properties, and intrinsically osteoconductive ability, should provide a promising alternative for bone regeneration.
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Affiliation(s)
- Yufei Ma
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering , Chongqing University , Chongqing 400030 , China
| | - Nan Hu
- Key Laboratory of Shenzhen Renal Diseases, Department of Nephrology, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medical College of Jinan University , Shenzhen People's Hospital , Shenzhen , Guangdong 518020 , China
| | - Juan Liu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering , Chongqing University , Chongqing 400030 , China
| | - Xinyun Zhai
- Department of Orthopaedic and Traumatology , The University of Hong Kong , 21 Sassoon Road , Pokfulam , Hong Kong 999077 , China
| | | | | | | | | | | | - William Weijia Lu
- Department of Orthopaedic and Traumatology , The University of Hong Kong , 21 Sassoon Road , Pokfulam , Hong Kong 999077 , China
| | - Xinzhou Zhang
- Key Laboratory of Shenzhen Renal Diseases, Department of Nephrology, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medical College of Jinan University , Shenzhen People's Hospital , Shenzhen , Guangdong 518020 , China
| | - Yanfeng Luo
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering , Chongqing University , Chongqing 400030 , China
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Poinard B, Kamaluddin S, Tan AQQ, Neoh KG, Kah JCY. Polydopamine Coating Enhances Mucopenetration and Cell Uptake of Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2019; 11:4777-4789. [PMID: 30694045 DOI: 10.1021/acsami.8b18107] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Mucus is an endogenous viscoelastic biopolymer barrier that limits the entry of foreign pathogens and therapeutic carriers to the underlying mucosal cells. This could be overcome with a hydrophilic and nonpositively charged carrier surface that minimizes interactions with the mucin glycoprotein fibers. Although PEGylation remains an attractive surface strategy to enhance mucopenetration, cell uptake of PEGylated nanoparticles (NPs) often remains poor. Here, we demonstrated polydopamine (PDA) coating to enhance both mucopenetration and cell uptake of NPs. PDA was polymerized on carboxylated polystyrene (PS) NPs to form a PDA coating, and the resulting PS-PDA achieved a similar level of mucopenetration as our PEGylated PS (PS-PEG) positive control in three separate studies: NP-mucin interaction test, transwell assay, and multiple particle tracking. Compared to water, the diffusions of PS-PDA and PS-PEG in reconstituted mucus solution were only 3.5 and 2.4 times slower, respectively, whereas the diffusion of bare PS was slowed by up to 250 times. However, the uptake of PS-PDA (61.2 ± 6.1%) was almost three times higher than PS-PEG (24.6 ± 5.4%) in T24 cells, which were used as a model for underlying mucosal cells. Our results showed a novel unreported functionality of PDA coating in enhancing both mucopenetration and cell uptake of NPs for mucosal drug delivery applications, not possible with conventional PEGylation strategies.
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Affiliation(s)
- Barbara Poinard
- NUS Graduate School of Integrative Sciences and Engineering , National University of Singapore , 117456 Singapore
| | - Syafiqah Kamaluddin
- Department of Biomedical Engineering , National University of Singapore , 117583 Singapore
| | - Angeline Qiao Qi Tan
- School of Life Sciences & Chemical Technology , Ngee Ann Polytechnic , 599489 Singapore
| | - Koon Gee Neoh
- NUS Graduate School of Integrative Sciences and Engineering , National University of Singapore , 117456 Singapore
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 117585 Singapore
| | - James Chen Yong Kah
- NUS Graduate School of Integrative Sciences and Engineering , National University of Singapore , 117456 Singapore
- Department of Biomedical Engineering , National University of Singapore , 117583 Singapore
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Multi-layered PLLA-nanosheets loaded with FGF-2 induce robust bone regeneration with controlled release in critical-sized mouse femoral defects. Acta Biomater 2019; 85:172-179. [PMID: 30583110 DOI: 10.1016/j.actbio.2018.12.031] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 12/08/2018] [Accepted: 12/20/2018] [Indexed: 12/31/2022]
Abstract
To overcome clinical issues caused by large bone defects and subsequent nonunion, various approaches to bone regeneration have been researched, including tissue engineering, biomaterials, stem cells and drug screening. Previously, we developed a free-standing biodegradable polymer nanosheet composed of poly(L-lactic acid) (PLLA) using a simple fabrication process consisting of spin-coating and peeling techniques. We reported that sandwich-type PLLA nanosheets loaded with recombinant human bone morphogenetic protein-2 (rhBMP-2) displayed long-lasting, sustained release of rhBMP-2, and markedly enhanced bone regeneration in mouse calvarial bone defects. Here, we fabricated multi-layered nanosheets loaded with fibroblast growth factor-2 (FGF-2), and investigated their application for long bone regeneration. Subcutaneously implanted tri-layered PLLA nanosheets displayed sustained release of loaded rhFGF-2 for about 2 weeks. Next, we prepared critical-sized mouse femoral defects and implanted mono- or tri-layered nanosheets, or a gelatin hydrogel with rhFGF-2. Amongst these conditions, the tri-layered nanosheet most efficiently induced bone regeneration. Indeed, bone regeneration was enhanced even after 4 weeks in the tri-layered nanosheet group, and was accompanied by FGFR1 activation and subsequent osteoblast differentiation. Multi-layered PLLA nanosheets loaded with rhFGF-2 may be useful for bone regenerative medicine. Furthermore, the multi-layered PLLA nanosheet structure may potentially be applied as a potent sustained-release carrier. STATEMENTS OF SIGNIFICANCE: Here, we describe multi-layered poly(L-lactic acid) (PLLA) nanosheets loaded with recombinant human fibroblast growth factor-2 (rhFGF-2) as a modified sustained-release carrier for bone regeneration. In vivo imaging system analysis revealed that subcutaneously implanted tri-layered PLLA nanosheets displayed sustained release of loaded rhFGF-2 for 2 weeks. In critical-sized mouse femoral defects, tri-layered nanosheets loaded with rhFGF-2 most efficiently induced bone regeneration. Notably, bone regeneration was enhanced even after 4 weeks in the tri-layered nanosheet group, and was accompanied by FGFR1 activation and subsequent osteoblast differentiation. Multi-layered PLLA nanosheets loaded with rhFGF-2 may be useful for bone regenerative medicine. Furthermore, the multi-layered PLLA nanosheet structure may potentially be applied as a potent sustained-release carrier.
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Madhurakkat Perikamana SK, Lee SM, Lee J, Ahmad T, Lee MS, Yang HS, Shin H. Oxidative Epigallocatechin Gallate Coating on Polymeric Substrates for Bone Tissue Regeneration. Macromol Biosci 2019; 19:e1800392. [DOI: 10.1002/mabi.201800392] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 12/21/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Sajeesh Kumar Madhurakkat Perikamana
- Department of BioengineeringHanyang University 222 Wangsimni‐ro Seongdong‐gu Seoul 04763 Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team 222 Wangsimni‐ro Seongdong‐gu Seoul 04763 Republic of Korea
| | - Sang Min Lee
- Department of BioengineeringHanyang University 222 Wangsimni‐ro Seongdong‐gu Seoul 04763 Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team 222 Wangsimni‐ro Seongdong‐gu Seoul 04763 Republic of Korea
| | - Jinkyu Lee
- Department of BioengineeringHanyang University 222 Wangsimni‐ro Seongdong‐gu Seoul 04763 Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team 222 Wangsimni‐ro Seongdong‐gu Seoul 04763 Republic of Korea
| | - Taufiq Ahmad
- Department of BioengineeringHanyang University 222 Wangsimni‐ro Seongdong‐gu Seoul 04763 Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team 222 Wangsimni‐ro Seongdong‐gu Seoul 04763 Republic of Korea
| | - Min Suk Lee
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative MedicineDankook University Cheonan 31116 Republic of Korea
| | - Hee Seok Yang
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative MedicineDankook University Cheonan 31116 Republic of Korea
| | - Heungsoo Shin
- Department of BioengineeringHanyang University 222 Wangsimni‐ro Seongdong‐gu Seoul 04763 Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team 222 Wangsimni‐ro Seongdong‐gu Seoul 04763 Republic of Korea
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78
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C. L, Zhang SJ, Sheng LY, Xi TF. Comparative evaluation of the biocompatible and physical–chemical properties of poly(lactide-co-glycolide) and polydopamine as coating materials for bacterial cellulose. J Mater Chem B 2019; 7:630-639. [DOI: 10.1039/c8tb02456a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The aim of this study was to investigate the influence of poly(lactide-co-glycolide) (PLGA) and polydopamine (PDA) as coating materials on the tensile strength, surface performance, in vitro cell behavior and the in vivo material-tissue reaction of bacterial cellulose (BC) membranes.
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Affiliation(s)
- Lai C.
- Shenzhen Key Laboratory of Human Tissue Regeneration and Repair, PKU-HKUST ShenZhen-HongKong Institution
- Shenzhen 518057
- China
| | - S. J. Zhang
- Guangdong Key Laboratory of Orthopaedic Technology and Implant Materials, The First Affiliated Hospital of Guangzhou Medical university
- Guangzhou 510120
- China
| | - L. Y. Sheng
- Shenzhen Key Laboratory of Human Tissue Regeneration and Repair, PKU-HKUST ShenZhen-HongKong Institution
- Shenzhen 518057
- China
| | - T. F. Xi
- Shenzhen Key Laboratory of Human Tissue Regeneration and Repair, PKU-HKUST ShenZhen-HongKong Institution
- Shenzhen 518057
- China
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79
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Zhang R, Li X, Yang M, Gao X, Zhu T, Lu L. Characterization of a Porous BMP-6-Loaded Composite Scaffold for Bone Regeneration in Rat Calvarial Bone Defects. J HARD TISSUE BIOL 2019. [DOI: 10.2485/jhtb.28.217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Ran Zhang
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University
| | - Xuewen Li
- Department of Oral Anatomy and Physiology, School of Stomatology, China Medical University
| | - Mingliang Yang
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University
| | - Xiaobo Gao
- Department of Oral and Maxillofacial Surgery, the Affiliated Hospital of Chifeng University
| | - Tong Zhu
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University
| | - Li Lu
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University
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80
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White KA, Olabisi RM. Spatiotemporal Control Strategies for Bone Formation through Tissue Engineering and Regenerative Medicine Approaches. Adv Healthc Mater 2019; 8:e1801044. [PMID: 30556328 DOI: 10.1002/adhm.201801044] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 11/06/2018] [Indexed: 02/06/2023]
Abstract
Global increases in life expectancy drive increasing demands for bone regeneration. The gold standard for surgical bone repair is autografting, which enjoys excellent clinical outcomes; however, it possesses significant drawbacks including donor site morbidity and limited availability. Although collagen sponges delivered with bone morphogenetic protein, type 2 (BMP2) are a common alternative or supplement, they do not efficiently retain BMP2, necessitating extremely high doses to elicit bone formation. Hence, reports of BMP2 complications are rising, including cancer promotion and ectopic bone formation, the latter inducing complications such as breathing difficulties and neurologic impairments. Thus, efforts to exert spatial control over bone formation are increasing. Several tissue engineering approaches have demonstrated the potential for targeted and controlled bone formation. These approaches include biomaterial scaffolds derived from synthetic sources, e.g., calcium phosphates or polymers; natural sources, e.g., bone or seashell; and immobilized biofactors, e.g., BMP2. Although BMP2 is the only protein clinically approved for use in a surgical device, there are several proteins, small molecules, and growth factors that show promise in tissue engineering applications. This review profiles the tissue engineering advances in achieving control over the location and onset of bone formation (spatiotemporal control) toward avoiding the complications associated with BMP2.
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Affiliation(s)
- Kristopher A. White
- Department of Chemical and Biochemical Engineering; Rutgers University; 98 Brett Road Piscataway NJ 08854 USA
| | - Ronke M. Olabisi
- Department of Biomedical Engineering; Rutgers University; 599 Taylor Road Piscataway NJ 08854 USA
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81
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Ma T, Ge XY, Hao KY, Jiang X, Zheng Y, Lin Y, Zhang Y. Titanium discs coated with 3,4-dihydroxy-l-phenylalanine promote osteogenic differentiation of human bone mesenchymal stem cells in vitro. RSC Adv 2019; 9:9117-9125. [PMID: 35517681 PMCID: PMC9062092 DOI: 10.1039/c8ra09952a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 03/13/2019] [Indexed: 11/29/2022] Open
Abstract
The bioinspired material 3,4-dihydroxy-l-phenylalanine (DOPA) is commonly used as a basic layer in surface modification for osteogenesis; however, its effects on bone remodeling and the underlying mechanisms remain unclear. Here, we investigated the effect of DOPA-coated surfaces on human bone marrow-derived mesenchymal stem cells in vitro. Cells cultured on DOPA-modified titanium discs exhibited enhanced cellular adhesion and spreading compared with cells on non-treated surfaces. Moreover, DOPA-coating promoted greater cell proliferation and osteogenic differentiation, as determined using cell counting kit-8 (CCK-8) assay, alkaline phosphatase activity test and quantitative mineralization measurements. Furthermore, microarray analysis revealed that genes participating in focal adhesion were upregulated on DOPA-coated surfaces. Our results indicate that the application of a simple DOPA coating can promote osteogenic differentiation of osteoprogenitor cells, improving new bone formation and bone remodeling around implantable devices in tissue engineering. Titanium discs with simple 3,4-dihydroxy-l-phenylalanine coating enhanced BM-MSC adhesion, spreading, proliferation and differentiation, and upregulated expression of genes involved in focal adhesion in vitro.![]()
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Affiliation(s)
- Ting Ma
- Department of Oral Implantology
- Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology
- Beijing 100081
- PR China
| | - Xi-Yuan Ge
- Central Laboratory
- Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology
- Beijing 100081
- PR China
| | - Ke-Yi Hao
- Department of Oral Implantology
- Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology
- Beijing 100081
- PR China
| | - Xi Jiang
- Department of Oral Implantology
- Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology
- Beijing 100081
- PR China
| | - Yan Zheng
- Department of Oral Implantology
- Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology
- Beijing 100081
- PR China
| | - Ye Lin
- Department of Oral Implantology
- Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology
- Beijing 100081
- PR China
| | - Yu Zhang
- Department of Oral Implantology
- Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology
- Beijing 100081
- PR China
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82
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Li X, Zhang R, Tan X, Li B, Liu Y, Wang X. Synthesis and Evaluation of BMMSC-seeded BMP-6/nHAG/GMS Scaffolds for Bone Regeneration. Int J Med Sci 2019; 16:1007-1017. [PMID: 31341414 PMCID: PMC6643122 DOI: 10.7150/ijms.31966] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 05/11/2019] [Indexed: 12/28/2022] Open
Abstract
Bioactive scaffolding materials and efficient osteoinductive factors are key factors for bone tissue engineering. The present study aimed to mimic the natural bone repair process using an osteoinductive bone morphogenetic protein (BMP)-6-loaded nano-hydroxyapatite (nHA)/gelatin (Gel)/gelatin microsphere (GMS) scaffold pre-seeded with bone marrow mesenchymal stem cells (BMMSCs). BMP-6-loaded GMSs were prepared by cross-linking and BMP-6/nHAG/GMS scaffolds were fabricated by a combination of blending and freeze-drying techniques. Scanning electron microscopy, confocal laser scanning microscopy, and CCK-8 assays were carried out to determine the biocompatibility of the composite scaffolds in vitro. Alkaline phosphatase (ALP) activity was measured to evaluate the osteoinductivity of the composite scaffolds. For in vivo examination, critical-sized calvarial bone defects in Sprague-Dawley rats were randomly implanted with BMMSC/nHAG/GMS and BMMSC/BMP-6/nHAG/GMS scaffolds, and compared with a control group with untreated empty defects. The BMP-6-loaded scaffolds showed cytocompatibility by favoring BMMSC attachment, proliferation, and osteogenic differentiation. In radiological and histological analyses, the BMMSC-seeded scaffolds, especially the BMMSC-seeded BMP-6/nHAG/GMS scaffolds, significantly accelerated new bone formation. It is concluded that the BMP-6/nHAG/GMS scaffold possesses excellent biocompatibility and good osteogenic induction activity in vitro and in vivo, and could be an ideal bioactive substitute for bone tissue engineering.
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Affiliation(s)
- Xuewen Li
- Department of Oral Anatomy and Physiology, School of Stomatology, China Medical University, Shenyang, China
| | - Ran Zhang
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Shenyang, China
| | - Xuexin Tan
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Shenyang, China
| | - Bo Li
- Department of Oral Anatomy and Physiology, School of Stomatology, China Medical University, Shenyang, China
| | - Yao Liu
- Department of Pediatric Dentistry, School of Stomatology, China Medical University, Shenyang, China
| | - Xukai Wang
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Shenyang, China
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83
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Yang B, Wang K, Zhang D, Ji B, Zhao D, Wang X, Zhang H, Kan Q, He Z, Sun J. Polydopamine-modified ROS-responsive prodrug nanoplatform with enhanced stability for precise treatment of breast cancer. RSC Adv 2019; 9:9260-9269. [PMID: 35517686 PMCID: PMC9062053 DOI: 10.1039/c9ra01230c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Accepted: 03/13/2019] [Indexed: 12/14/2022] Open
Abstract
Development of smart stimuli-responsive prodrug nanomaterials for fast drug release and efficient antitumor therapy has attracted great attention in recent years. However, the inherent instability of naked prodrugs in the blood is an important challenge limiting their biomedical applications. Although a number of strategies have been taken to prevent prodrugs from hydrolyzing due to blood composition, most of these strategies are unsatisfactory. Here, we designed an extraordinary ROS-triggered prodrug nanoplatform fabricated by using a single thioether linker to conjugate PTX with 6-maleimidocaproic acid (MAL), resulting in the PTX-S-MAL prodrug self-assembling into uniform size nanoparticles; then the prodrug nanoplatform was modified with a polydopamine coating and PEGylation to confer high solubility and stability. In in vitro experiments, the polydopamine-modified ROS-responsive prodrug nanosystem showed a high sensitivity in term of various H2O2 concentrations, and the PDA coating on the surface of the prodrug nanosystem didn't affect the drug release properties. Moreover, the excellent polydopamine-modified ROS-triggered prodrug nanoplatform selectively and rapidly releases PTX in response to the ROS overproduced in tumor cells, but showed less cytotoxicity against normal cells. In in vivo experiments, the prepared polydopamine-modified prodrug-nanosystem obviously enhances the stability and tumor accumulation of prodrug, producing a remarkably improved breast cancer treatment with minimal side effects. Our studies demonstrated that this modified nanoplatform could significantly improve chemotherapy efficiency, which will find great potential in cancer treatment. Development of smart stimuli-responsive prodrug nanomaterials for fast drug release and efficient antitumor therapy has attracted great attention in recent years.![]()
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84
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Liu Y, Xu C, Gu Y, Shen X, Zhang Y, Li B, Chen L. Polydopamine-modified poly(l-lactic acid) nanofiber scaffolds immobilized with an osteogenic growth peptide for bone tissue regeneration. RSC Adv 2019; 9:11722-11736. [PMID: 35516986 PMCID: PMC9063423 DOI: 10.1039/c8ra08828d] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 03/25/2019] [Indexed: 11/30/2022] Open
Abstract
It is highly desirable for bone tissue engineering scaffolds to have significant osteogenic properties and capability to improve cell growth and thus enhance bone regeneration. In this study, a poly(l-lactic acid) (PLLA) nanofiber scaffold-immobilized osteogenic growth peptide (OGP) was prepared via polydopamine (PDA) coating. X-ray photoelectron spectroscopy (XPS), contact angle measurement, and scanning electron microscopy (SEM) were used to determine the OGP immobilization, hydrophilicity and surface roughness of the samples. The SEM and fluorescence images demonstrate that the PLLA nanofiber scaffolds immobilized with the OGP have excellent cytocompatibility in terms of cell adhesion and proliferation. The ALP activity and the Runx2 and OPN expression results indicated that the PLLA nanofiber scaffolds immobilized with OGP significantly enhanced the osteogenic differentiation and calcium mineralization of hMSCs in vitro. A rat model of critical skull bone defect was selected to evaluate the bone formation capacity of the scaffolds. Micro CT analysis and histological results demonstrated that the PLLA scaffolds immobilized with OGP significantly promoted bone regeneration in critical-sized bone defects. This study verifies that the PLLA scaffold-immobilized OGP has significant potential in bone tissue engineering. Polydopamine-modified PLLA nanofiber scaffolds immobilized with osteogenic growth peptide were designed and prepared for promoting bone formation.![]()
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Affiliation(s)
- Yong Liu
- Department of Orthopaedic Surgery
- The First Affiliated Hospital of Soochow University
- Suzhou
- PR China
- Department of Orthopaedic Surgery
| | - Changlu Xu
- Department of Orthopaedic Surgery
- The First Affiliated Hospital of Soochow University
- Suzhou
- PR China
- Orthopedic Institute
| | - Yong Gu
- Department of Orthopaedic Surgery
- The First Affiliated Hospital of Soochow University
- Suzhou
- PR China
| | - Xiaofeng Shen
- Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine
- China
| | - Yanxia Zhang
- Institute for Cardiovascular Science & Department of Cardiovascular Surgery of the First Affiliated Hospital
- Soochow University
- Suzhou
- PR China
| | - Bin Li
- Orthopedic Institute
- Soochow University
- Suzhou
- PR China
| | - Liang Chen
- Department of Orthopaedic Surgery
- The First Affiliated Hospital of Soochow University
- Suzhou
- PR China
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85
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Yin HM, Li X, Wang P, Ren Y, Liu W, Xu JZ, Li JH, Li ZM. Role of HA and BG in engineering poly(ε-caprolactone) porous scaffolds for accelerating cranial bone regeneration. J Biomed Mater Res A 2018; 107:654-662. [PMID: 30474348 DOI: 10.1002/jbm.a.36584] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 10/30/2018] [Accepted: 11/06/2018] [Indexed: 12/19/2022]
Abstract
Effects of varied bioactive fillers on the biological behavior of porous polymer/inorganic composite scaffolds are lack of comprehensive comparison and remain elusive. Moreover, composite scaffolds with high porosity suffer from inferior mechanical performance. Herein, high-pressure molding and salt leaching were employed to prepare poly(ε-caprolactone) (PCL) composite porous scaffolds loaded with hydroxyapatite (HA) and bioactive glass (BG), respectively. Structural analysis indicated all the porous scaffolds presented interconnected open-pore structure with the porosity of ~87% and pore size of ~180 μm, hinging on the amounts and size of porogen. Compared to PCL/HA scaffolds, PCL/BG scaffolds showed ~2.3-fold augment in the water absorption. Attributing to the compact framework, the PCL/HA and PCL/BG porous scaffolds exhibited outstanding compressive modulus, which was notably higher than other PCL composite porous scaffolds reported in literatures. Cells culture results demonstrated that PCL/BG scaffolds displayed higher expression of osteogenic differentiation than PCL and PCL/HA scaffolds. Furthermore, in vivo results showed that more mature bone was formed within PCL/BG scaffolds than PCL/HA scaffolds, manifesting that the introduction of BG accelerated cranial bone regeneration to obtain complete bone healing within a short time. Therefore, these data indicate that PCL/BG scaffolds are more competitive for bone tissue engineering application. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 654-662, 2019.
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Affiliation(s)
- Hua-Mo Yin
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Xiang Li
- State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, 610041, China.,Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Peng Wang
- State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yue Ren
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Wei Liu
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Jia-Zhuang Xu
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Ji-Hua Li
- State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
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86
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Yun YJ, Kim HJ, Lee DW, Um S, Chun HJ. Polydopamine-mediated surface modifications of poly l-lactic acid with hydroxyapatite, heparin and bone morphogenetic protein-2 and their effects on osseointegration. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.06.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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87
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Zeng X, Luo M, Liu G, Wang X, Tao W, Lin Y, Ji X, Nie L, Mei L. Polydopamine-Modified Black Phosphorous Nanocapsule with Enhanced Stability and Photothermal Performance for Tumor Multimodal Treatments. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800510. [PMID: 30356942 PMCID: PMC6193171 DOI: 10.1002/advs.201800510] [Citation(s) in RCA: 312] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 06/12/2018] [Indexed: 05/03/2023]
Abstract
As a novel 2D material, black phosphorus (BP) nanosheets are considered as a promising candidate for drug delivery platform for synergistic chemo/photothermal therapy. However, the intrinsic instability of bare BP poses a challenge in its biomedical applications. To date, some strategies have been employed to prevent BP from rapid ambient degradation. Unfortunately, most of these strategies are not suitable for the drug delivery systems. Here, a simple polydopamine modification method is developed to enhance the stability and photothermal performance of bare BP nanosheets. Then, this nanocapsule is used as a multifunctional codelivery system for the targeted chemo, gene, and photothermal therapy against multidrug-resistant cancer. The enhanced tumor therapy effect is demonstrated by both in vitro and in vivo studies.
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Affiliation(s)
- Xiaowei Zeng
- School of Pharmaceutical Sciences (Shenzhen)Sun Yat‐sen UniversityGuangzhou510275China
| | - Miaomiao Luo
- School of Pharmaceutical Sciences (Shenzhen)Sun Yat‐sen UniversityGuangzhou510275China
| | - Gan Liu
- School of Pharmaceutical Sciences (Shenzhen)Sun Yat‐sen UniversityGuangzhou510275China
| | - Xusheng Wang
- School of Pharmaceutical Sciences (Shenzhen)Sun Yat‐sen UniversityGuangzhou510275China
| | - Wei Tao
- Brigham and Women's HospitalHarvard Medical SchoolBostonMA02115USA
| | - Yaoxin Lin
- School of Pharmaceutical Sciences (Shenzhen)Sun Yat‐sen UniversityGuangzhou510275China
| | - Xiaoyuan Ji
- School of Pharmaceutical Sciences (Shenzhen)Sun Yat‐sen UniversityGuangzhou510275China
| | - Lin Nie
- School of Pharmaceutical Sciences (Shenzhen)Sun Yat‐sen UniversityGuangzhou510275China
| | - Lin Mei
- School of Pharmaceutical Sciences (Shenzhen)Sun Yat‐sen UniversityGuangzhou510275China
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88
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Shen J, Shi D, Dong L, Zhang Z, Li X, Chen M. Fabrication of polydopamine nanoparticles knotted alginate scaffolds and their properties. J Biomed Mater Res A 2018; 106:3255-3266. [DOI: 10.1002/jbm.a.36524] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 07/29/2018] [Accepted: 08/09/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Jiali Shen
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education, School of Chemical and Material Engineering, Jiangnan University; Wuxi 214122 China
| | - Dongjian Shi
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education, School of Chemical and Material Engineering, Jiangnan University; Wuxi 214122 China
| | - Liangliang Dong
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education, School of Chemical and Material Engineering, Jiangnan University; Wuxi 214122 China
| | - Zhuying Zhang
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education, School of Chemical and Material Engineering, Jiangnan University; Wuxi 214122 China
| | - Xiaojie Li
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education, School of Chemical and Material Engineering, Jiangnan University; Wuxi 214122 China
| | - Mingqing Chen
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education, School of Chemical and Material Engineering, Jiangnan University; Wuxi 214122 China
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89
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Kim S, Kim J, Gajendiran M, Yoon M, Hwang MP, Wang Y, Kang BJ, Kim K. Enhanced Skull Bone Regeneration by Sustained Release of BMP-2 in Interpenetrating Composite Hydrogels. Biomacromolecules 2018; 19:4239-4249. [DOI: 10.1021/acs.biomac.8b01013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sungjun Kim
- Division of Bioengineering, College of Life Sciences and Bioengineering, Incheon National University, Incheon, 22012 Korea
| | - Junhyung Kim
- Department of Veterinary Surgery, College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Mani Gajendiran
- Division of Bioengineering, College of Life Sciences and Bioengineering, Incheon National University, Incheon, 22012 Korea
| | - Minhyuk Yoon
- Division of Bioengineering, College of Life Sciences and Bioengineering, Incheon National University, Incheon, 22012 Korea
| | - Mintai P. Hwang
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14850, United States
| | - Yadong Wang
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14850, United States
| | - Byung-Jae Kang
- Department of Veterinary Surgery, College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Kyobum Kim
- Division of Bioengineering, College of Life Sciences and Bioengineering, Incheon National University, Incheon, 22012 Korea
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90
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Zhou P, Wu J, Xia Y, Yuan Y, Zhang H, Xu S, Lin K. Loading BMP-2 on nanostructured hydroxyapatite microspheres for rapid bone regeneration. Int J Nanomedicine 2018; 13:4083-4092. [PMID: 30034234 PMCID: PMC6047624 DOI: 10.2147/ijn.s158280] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Tissue engineering is a promising strategy for bone regeneration in repairing massive bone defects. The surface morphology of implanted materials plays a key role in bone healing; these materials incorporate osteoinductive factors to improve the efficiency of bone regeneration. MATERIALS AND METHODS In the current study, nanostructured hydroxyapatite (nHAp) micro-spheres were prepared via a hydrothermal transformation method using calcium silicate (CS) microspheres as precursors; the CS microspheres were obtained by a spray-drying method. The nHAp microspheres constructed by the nano-whiskers significantly improved the ability of the microspheres to adsorb the bioactive protein (BMP-2) and reduce its initial burst release. To evaluate the in vivo bone regeneration of microspheres, both conventional hydroxyapatite (HAp) and nHAp microspheres were either loaded with recombinant human bone morphogenetic protein-2 (rhBMP-2) or not loaded with the protein; these microspheres were implanted in rat femoral bone defects for 4 and 8 weeks. RESULTS AND DISCUSSION The results of our three-dimensional (3D) micro-computed tomography (CT) and histomorphometric observations showed that the combination of the nano-structured surface and rhBMP-2 obviously improved osteogenesis compared to conventional HAp microspheres loaded with rhBMP-2. Our results suggest that the nHAp microspheres with a nanostructured surface adsorb rhBMP-2 for rapid bone formation; they therefore show the potential to act as carriers in bone tissue regeneration.
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Affiliation(s)
- Panyu Zhou
- Department of Emergency, Changhai Hospital, Second Military Medical University, Shanghai 200433, People's Republic of China,
| | - Jianghong Wu
- Department of Emergency, Changhai Hospital, Second Military Medical University, Shanghai 200433, People's Republic of China,
| | - Yan Xia
- Department of Emergency, Changhai Hospital, Second Military Medical University, Shanghai 200433, People's Republic of China,
| | - Ye Yuan
- Department of Emergency, Changhai Hospital, Second Military Medical University, Shanghai 200433, People's Republic of China,
| | - Hongyue Zhang
- Department of Emergency, Changhai Hospital, Second Military Medical University, Shanghai 200433, People's Republic of China,
| | - Shuogui Xu
- Department of Emergency, Changhai Hospital, Second Military Medical University, Shanghai 200433, People's Republic of China,
| | - Kaili Lin
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China,
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91
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Sieste S, Mack T, Synatschke CV, Schilling C, Meyer zu Reckendorf C, Pendi L, Harvey S, Ruggeri FS, Knowles TPJ, Meier C, Ng DYW, Weil T, Knöll B. Water-Dispersible Polydopamine-Coated Nanofibers for Stimulation of Neuronal Growth and Adhesion. Adv Healthc Mater 2018; 7:e1701485. [PMID: 29635761 DOI: 10.1002/adhm.201701485] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 02/14/2018] [Indexed: 11/11/2022]
Abstract
Hybrid nanomaterials have shown great potential in regenerative medicine due to the unique opportunities to customize materials properties for effectively controlling cellular growth. The peptide nanofiber-mediated auto-oxidative polymerization of dopamine, resulting in stable aqueous dispersions of polydopamine-coated peptide hybrid nanofibers, is demonstrated. The catechol residues of the polydopamine coating on the hybrid nanofibers are accessible and provide a platform for introducing functionalities in a pH-responsive polymer analogous reaction, which is demonstrated using a boronic acid modified fluorophore. The resulting hybrid nanofibers exhibit attractive properties in their cellular interactions: they enhance neuronal cell adhesion, nerve fiber growth, and growth cone area, thus providing great potential in regenerative medicine. Furthermore, the facile modification by pH-responsive supramolecular polymer analog reactions allows tailoring the functional properties of the hybrid nanofibers in a reversible fashion.
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Affiliation(s)
- Stefanie Sieste
- Institute of Organic Chemistry III/Macromolecular Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
- Department Synthesis of Macromolecules; Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Thomas Mack
- Institute of Organic Chemistry III/Macromolecular Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
- Department Synthesis of Macromolecules; Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Christopher V. Synatschke
- Department Synthesis of Macromolecules; Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Corinna Schilling
- Institute of Physiological Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | | | - Laura Pendi
- Institute of Organic Chemistry III/Macromolecular Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Sean Harvey
- Institute of Organic Chemistry III/Macromolecular Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
- Department Synthesis of Macromolecules; Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Francesco S. Ruggeri
- Department of Chemistry; University of Cambridge; Lensfield Road CB2 1EW Cambridge UK
| | - Tuomas P. J. Knowles
- Department of Chemistry; University of Cambridge; Lensfield Road CB2 1EW Cambridge UK
| | - Christoph Meier
- Institute of Organic Chemistry III/Macromolecular Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - David Y. W. Ng
- Institute of Organic Chemistry III/Macromolecular Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
- Department Synthesis of Macromolecules; Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Tanja Weil
- Institute of Organic Chemistry III/Macromolecular Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
- Department Synthesis of Macromolecules; Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Bernd Knöll
- Institute of Physiological Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
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92
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Liu Z, Chen J, Zhang G, Zhao J, Fu R, Tang K, Zhi W, Duan K, Weng J, Li W, Qu S. Enhanced Repairing of Critical-Sized Calvarial Bone Defects by Mussel-Inspired Calcium Phosphate Cement. ACS Biomater Sci Eng 2018; 4:1852-1861. [DOI: 10.1021/acsbiomaterials.8b00243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zongguang Liu
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Jianmei Chen
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Guowei Zhang
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Junsheng Zhao
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Rong Fu
- Department of Plastic Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, Chengdu 610072, China
| | - Kuangyun Tang
- Department of Plastic Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, Chengdu 610072, China
| | - Wei Zhi
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Ke Duan
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Jie Weng
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Wei Li
- Department of Burns Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, Chengdu 610072, China
| | - Shuxin Qu
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
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93
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Huang B, Wu Z, Ding S, Yuan Y, Liu C. Localization and promotion of recombinant human bone morphogenetic protein-2 bioactivity on extracellular matrix mimetic chondroitin sulfate-functionalized calcium phosphate cement scaffolds. Acta Biomater 2018; 71:184-199. [PMID: 29355717 DOI: 10.1016/j.actbio.2018.01.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 11/28/2017] [Accepted: 01/08/2018] [Indexed: 12/22/2022]
Abstract
Localization of recombinant human bone morphogenetic protein-2 (rhBMP-2) with continuous and effective osteogenic stimulation is still a great challenge in the field of bone regeneration. To achieve this aim, rhBMP-2 was tethered on chondroitin sulfate (CS)-functionalized calcium phosphate cement (CPC) scaffolds through specific noncovalent interactions. CS, one of the core glycosaminoglycans, was covalently conjugated onto CPC scaffolds with the assistance of polydopamine (PDA) and further immobilized rhBMP-2 in a biomimetic form. The CPC-PDA-CS scaffolds not only controlled the release kinetics and presentation state of rhBMP-2 but also effectively increased the expression levels of bone morphogenetic protein receptors (BMPRs) and enhanced the recognitions of the remaining rhBMP-2 to BMPRs. Strikingly, the rhBMP-2-loaded CPC-PDA-CS significantly promoted the cellular surface translocation of BMPRs (especially BMPR-IA). In vivo studies demonstrated that, compared with the rhBMP-2 upon CPC and CPC-PDA, the rhBMP-2 upon CPC-PDA-CS exhibited sustained release and induced high quality and more ectopic bone formation. Collectively, these results suggest that rhBMP-2 can be localized within CS-functionalized CPC scaffolds and exert continuous, long-term, and effective osteogenic stimulation. Thus, this work could provide new avenues in mimicking bone extracellular matrix microenvironment and localizing growth factor activity for enhanced bone regeneration. STATEMENT OF SIGNIFICANCE A bioinspired chondroitin sulfate (CS)-functionalized calcium phosphate cement (CPC) platform was developed to tether recombinant human bone morphogenetic protein-2 (rhBMP-2), which could exhibit continuous, long-term, and effective osteogenic stimulation in bone tissue engineering. Compared with rhBMP-2-loaded CPC, the rhBMP-2-loaded CPC-polydopamine-CS scaffolds induced higher expression of bone morphogenetic protein receptors (BMPRs), greater cellular surface translocation of bone morphogenetic protein receptor-IA, higher binding affinity of BMPRs/rhBMP-2, and thus higher activation of the drosophila gene mothers against decapentaplegic protein-1/5/8 (Smad1/5/8) and extracellular-regulated protein kinases-1/2 (ERK1/2) signaling. This work can provide new guidelines for the design of BMP-2-based bioactive materials for bone regeneration.
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94
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Wang X, Chen Z, Zhou B, Duan X, Weng W, Cheng K, Wang H, Lin J. Cell-Sheet-Derived ECM Coatings and Their Effects on BMSCs Responses. ACS APPLIED MATERIALS & INTERFACES 2018; 10:11508-11518. [PMID: 29564888 DOI: 10.1021/acsami.7b19718] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Extracellular matrix (ECM) provides a dynamic and complex environment to determine the fate of stem cells. In this work, light harvested cell sheets were treated with paraformaldehyde or ethanol, which eventually become ECM. Such ECM was then immobilized on titanium substrates via polydopamine chemistry. Their effects on bone marrow mesenchymal stromal cells (BMSCs) behaviors were investigated. It was found that paraformaldehyde-treated ECM coating (PT-ECM) showed a well-maintained microstructure, whereas that of ethanol-treated (ET-ECM) was completely changed. As a result, different amide structures and distributions of ECM components, such as laminin and collagen I, were exhibited. Alkaline phosphatase activity, osteocalcin secretion, related gene expression, and mineral deposition were evaluated for BMSCs cultured on both ECM coatings. PT-ECM was demonstrated to promote osteogenic differentiation much more efficiently than that of ET-ECM. That is ascribed to the preservation of native ECM milieu of PT-ECM. Such ECM acquirement and immobilization method could establish surfaces being able to direct stem cell responses on various materials. That shows promising potential in bone tissue engineering and other related biomedical applications.
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Affiliation(s)
- Xiaozhao Wang
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications , Zhejiang University , Hangzhou 310027 , China
| | - Zun Chen
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications , Zhejiang University , Hangzhou 310027 , China
- School of Medicine , Zhejiang University , Hangzhou 3100058 , China
| | - Beibei Zhou
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications , Zhejiang University , Hangzhou 310027 , China
| | - Xiyue Duan
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications , Zhejiang University , Hangzhou 310027 , China
| | - Wenjian Weng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications , Zhejiang University , Hangzhou 310027 , China
| | - Kui Cheng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications , Zhejiang University , Hangzhou 310027 , China
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95
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Ryu JH, Messersmith PB, Lee H. Polydopamine Surface Chemistry: A Decade of Discovery. ACS APPLIED MATERIALS & INTERFACES 2018; 10:7523-7540. [PMID: 29465221 PMCID: PMC6320233 DOI: 10.1021/acsami.7b19865] [Citation(s) in RCA: 836] [Impact Index Per Article: 139.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Polydopamine is one of the simplest and most versatile approaches to functionalizing material surfaces, having been inspired by the adhesive nature of catechols and amines in mussel adhesive proteins. Since its first report in 2007, a decade of studies on polydopamine molecular structure, deposition conditions, and physicochemical properties have ensued. During this time, potential uses of polydopamine coatings have expanded in many unforeseen directions, seemingly only limited by the creativity of researchers seeking simple solutions to manipulating surface chemistry. In this review, we describe the current state of the art in polydopamine coating methods, describe efforts underway to uncover and tailor the complex structure and chemical properties of polydopamine, and identify emerging trends and needs in polydopamine research, including the use of dopamine analogs, nitrogen-free polyphenolic precursors, and improvement of coating mechanical properties.
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Affiliation(s)
- Ji Hyun Ryu
- Department of Carbon Fusion Engineering, Wonkwang University, Iksan, Jeonbuk 54538, South Korea
| | - Phillip B. Messersmith
- Departments of Bioengineering and Materials Science and Engineering, University of California, Berkeley, 210 Hearst Mining Building, Berkeley, California 94720-1760, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Haeshin Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 University Road, Daejeon 34141, South Korea
- Center for Nature-inspired Technology (CNiT), KAIST Institute of NanoCentury, 291 University Road, Daejeon 34141, South Korea
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96
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Madhurakkat Perikamana SK, Lee J, Ahmad T, Kim EM, Byun H, Lee S, Shin H. Harnessing biochemical and structural cues for tenogenic differentiation of adipose derived stem cells (ADSCs) and development of an in vitro tissue interface mimicking tendon-bone insertion graft. Biomaterials 2018. [PMID: 29522987 DOI: 10.1016/j.biomaterials.2018.02.046] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Tendon-bone interface tissue is extremely challenging to engineer because it exhibits complex gradients of structure, composition, biologics, and cellular phenotypes. As a step toward engineering these transitional zones, we initially analyzed how different (topographical or biological) cues affect tenogenic differentiation of adipose-derived stem cells (ADSCs). We immobilized platelet-derived growth factor - BB (PDGF-BB) using polydopamine (PD) chemistry on random and aligned nanofibers and investigated ADSC proliferation and tenogenic differentiation. Immobilized PDGF greatly enhanced the proliferation and tenogenic differentiation of ADSCs; however, nanofiber alignment had no effect. Interestingly, the PDGF immobilized aligned nanofiber group showed a synergistic effect with maximum expression of tenogenic markers for 14 days. We also generated a nanofiber surface with spatially controlled presentation of immobilized PDGF on an aligned architecture, mimicking native tendon tissue. A gradient of immobilized PDGF was able to control the phenotypic differentiation of ADSCs into tenocytes in a spatially controlled manner, as confirmed by analysis of the expression of tenogenic markers and immunofluorescence staining. We further explored the gradient formation strategy by generation of a symmetrical gradient on the nanofiber surface for the generation of a structure mimicking bone-patellar-tendon-bone with provision for gradient immobilization of PDGF and controlled mineralization. Our study reveals that, together with biochemical cues, favorable topographical cues are important for tenogenic differentiation of ADSCs, and gradient presentation of PDGF can be used as a tool for engineering stem cell-based bone-tendon interface tissues.
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Affiliation(s)
- Sajeesh Kumar Madhurakkat Perikamana
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea; BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Jinkyu Lee
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea; BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Taufiq Ahmad
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea; BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Eun Mi Kim
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea; BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Hayeon Byun
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea; BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Sangmin Lee
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea; BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Heungsoo Shin
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea; BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea.
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97
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Teixeira BN, Aprile P, Mendonça RH, Kelly DJ, Thiré RMDSM. Evaluation of bone marrow stem cell response to PLA scaffolds manufactured by 3D printing and coated with polydopamine and type I collagen. J Biomed Mater Res B Appl Biomater 2018; 107:37-49. [PMID: 29480562 DOI: 10.1002/jbm.b.34093] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Revised: 01/18/2018] [Accepted: 02/04/2018] [Indexed: 12/21/2022]
Abstract
The majority of synthetic polymers used in 3 D printing are not designed to promote specific cellular interactions and hence possess limited bioactivity. Most of the strategies proposed to overcome this limitation demand multiple and expensive processing steps. This study aimed to evaluate the surface modification of 3D-printed poly(lactic acid) (PLA) scaffolds with polydopamine (PDA) coating as an alternative strategy to enhance their bioactivity and to facilitate the immobilization of type I collagen (COL I) onto the implant surface. Physical and chemical properties of PLA scaffolds coated with PDA, COL I or both were evaluated. The response of porcine bone marrow stem cells (MSCs) to the coatings was also investigated. The PDA layer improved COL immobilization onto the surface of the PLA scaffolds by 92%. The combination of PDA and COL functionalizations provided the best conditions for early-stage (<7 days) cell response. In addition, the PDA plus COL surface facilitated the robust deposition of extracellular matrix in the first 14 days of cell culture. Although the behavior of the MSCs appeared to be similar for both uncoated PLA and PDA plus COL-coated scaffolds by day 21, cells seeded onto PDA plus COL scaffolds produced substantially higher amounts of alkaline phosphatase. These results indicate that the osteoinductivity of 3D-printed PLA scaffolds can be enhanced by PDA and type I collagen coatings. This surface modification of polymeric scaffolds represents a promising strategy for bone tissue engineering. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 107B: 37-49, 2019.
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Affiliation(s)
- Bruna Nunes Teixeira
- COPPE/Programme of Metallurgical and Materials Engineering, Universidade Federal do Rio de Janeiro, Rio de Janeiro - RJ, Brazil.,Trinity Centre for Bioengineering, School of Engineering, Trinity College of Dublin, Dublin 2, Ireland
| | - Paola Aprile
- Trinity Centre for Bioengineering, School of Engineering, Trinity College of Dublin, Dublin 2, Ireland
| | - Roberta H Mendonça
- Post-Graduation Programme of Chemical Engineering (PPGEQ), Federal Rural University of Rio de Janeiro, Seropédica - RJ, Brazil
| | - Daniel J Kelly
- Trinity Centre for Bioengineering, School of Engineering, Trinity College of Dublin, Dublin 2, Ireland.,Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin, Ireland.,Department of Anatomy, Royal College of Surgeons in Ireland, Dublin, Ireland.,Advanced Materials and Bioengineering Research Centre (AMBER), Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin, Ireland
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98
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Zhang J, Cai L, Wang T, Tang S, Li Q, Tang T, Wei S, Qian J, Wei J, Su J. Lithium doped silica nanospheres/poly(dopamine) composite coating on polyetheretherketone to stimulate cell responses, improve bone formation and osseointegration. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:965-976. [PMID: 29408735 DOI: 10.1016/j.nano.2018.01.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 01/17/2018] [Accepted: 01/22/2018] [Indexed: 10/18/2022]
Abstract
Osseointegration is crucial for early fixation as well as long-term success of orthopedic implants. Bioactive composite containing lithium doping silica nanospheres (LSNs) and poly(dopamine) (PDA) were coated on polyetheretherketone (PK) surface (LPPK), and effects of the LSNs/PDA composite (LPC) coating on the biological properties of LPPK were assessed both in vitro and in vivo. Results showed that LPPK with improved bioactivity remarkably promoted apatite mineralization in simulated body fluid (SBF) compared with PDA coated on PK (PPK) and PK. Moreover, the LPPK remarkably stimulated rat bone marrow stromal cells (rBMSCs) responses compared with PPK and PK. Furthermore, the LPPK significantly promoted bone tissues responses in vivo compared with PPK and PK. It could be suggested that the improvements of cells and bone tissues responses were attributed to the surface characteristics of the bioactive LPC coating on LPPK. The LPPK would be a great candidate for orthopedic and dental applications.
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Affiliation(s)
- Jue Zhang
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Liang Cai
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Tinglan Wang
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Songchao Tang
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Quan Li
- Department of Orthopaedics Trauma, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai, PR China
| | - Shicheng Wei
- Department of Oral and Maxillofacial Surgery, Laboratory of Interdisciplinary Studies, School and Hospital of Stomatology, Peking University, Beijing, China
| | - Jun Qian
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Jie Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, China.
| | - Jiacan Su
- Department of Orthopaedics Trauma, Changhai Hospital, Second Military Medical University, Shanghai, China.
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99
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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.
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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
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100
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Bao S, Kang J, Tu C, Xu C, Ye L, Zhang H, Zhao H, Zhang A, Feng Z, Zhang F. Chemical coatings relying on the self-polymerization of catechol for retrievable vena cava filters. NEW J CHEM 2018. [DOI: 10.1039/c7nj04138a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
After covalent conjugation with catechol, heparin and paclitaxel can be chemically coated on a Ti–Ni alloy to endow anti-thrombosis and anti-intimal hyperplasia properties, respectively.
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Affiliation(s)
- Songhao Bao
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Jialin Kang
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Chengzhao Tu
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Chengfeng Xu
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Lin Ye
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications
| | - Huan Zhang
- Shijitan Hospital
- Capital Medical University
- Beijing 100038
- China
| | - Hui Zhao
- Luhe Hospital
- Capital Medical University
- Beijing 101149
- China
| | - Aiying Zhang
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications
| | - Zengguo Feng
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications
| | - Fuxian Zhang
- Shijitan Hospital
- Capital Medical University
- Beijing 100038
- China
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