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Li Y, Tang Y, Chen L, Li H, Wang H, Wang J. Osteopontine-derived functional fragments coupled to RADA16 self-assembled peptide hydrogels promotes bone and vascular regeneration in vivo. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:657-674. [PMID: 38284324 DOI: 10.1080/09205063.2024.2304951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 01/08/2024] [Indexed: 01/30/2024]
Abstract
Biomaterial scaffolds have been widely used in tissue engineering. A functionalized self-assembled peptide scaffold named RADA16-OPD was designed by linking the short functional motif of osteopontine (OPN)-derived functional fragments SVVYGLR (OPD) to the C-terminus of the self-assembled peptide RADA16. Atomic force microscopy (AFM) was used to analyze the self-assembling peptide's structural composition. The live/dead staining results showed that RADA16-OPD is not toxic to rASC. After creating a rat skull defect model artificially, micro-CT results revealed that the defect area treated with RADA16-OPD hydrogel had higher bone volume/total volume (BV/TV), a higher trabecular number (TB.N.), and higher bone density (BMD) at different treatment time points. Histological evaluation found that there was more new bone and mature collagen production in the RADA16-OPD group. Meanwhile, the RADA16-OPD group had higher expression of alkaline phosphatase (ALP) and osteocalcin (OCN) than the other two groups. Additionally, immunofluorescence revealed that the RADA16-OPD group had higher levels of platelet/endothelial cell adhesion molecule 1 (CD31) expression than the other two groups. It demonstrated the potential for clinical use of the RADA16-OPD peptide scaffold by promoting bone regeneration and blood vessel development in vivo.
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Affiliation(s)
- Yong Li
- Department of trauma Orthopedics, Guizhou Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guiyang, China
| | - Yao Tang
- Department of Geriatrics, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - LiFu Chen
- Department of Orthopedics, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - HaiTao Li
- Department of Orthopedics, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Hong Wang
- Department of Orthopedics, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Jian Wang
- Department of Orthopedics, Affiliated Hospital of Guizhou Medical University, Guiyang, China
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Hao Y, Wu C, Su Y, Curran J, Henstock JR, Tseng F. A 4D printed self-assembling PEGDA microscaffold fabricated by digital light processing for arthroscopic articular cartilage tissue engineering. PROGRESS IN ADDITIVE MANUFACTURING 2022; 9:3-14. [PMID: 38333227 PMCID: PMC10851926 DOI: 10.1007/s40964-022-00360-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 10/26/2022] [Indexed: 02/10/2024]
Abstract
Articular cartilage in synovial joints such as the knee has limited capability to regenerate independently, and most clinical options for focal cartilage repair merely delay total joint replacement. Tissue engineering presents a repair strategy in which an injectable cell-laden scaffold material is used to reconstruct the joint in situ through mechanical stabilisation and cell-mediated regeneration. In this study, we designed and 3D-printed millimetre-scale micro-patterned PEGDA biomaterial microscaffolds which self-assemble through tessellation at a scale relevant for applications in osteochondral cartilage reconstruction. Using simulated chondral lesions in an in vitro model, a series of scaffold designs and viscous delivery solutions were assessed. Hexagonal microscaffolds (750 μm x 300 μm) demonstrated the best coverage of a model cartilage lesion (at 73.3%) when injected with a 1% methyl cellulose solution. When chondrocytes were introduced to the biomaterial via a collagen hydrogel, they successfully engrafted with the printed microscaffolds and survived for at least 14 days in vitro, showing the feasibility of reconstructing stratified cartilaginous tissue using this strategy. Our study demonstrates a promising application of this 4D-printed injectable technique for future clinical applications in osteochondral tissue engineering. Supplementary Information The online version contains supplementary material available at 10.1007/s40964-022-00360-0.
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Affiliation(s)
- Yunjie Hao
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu, 30013 Taiwan
- Department of Mechanical, Materials and Aerospace, School of Engineering, Harrison Hughes Building, University of Liverpool, Liverpool, L69 3GH U.K
| | - Chuanyung Wu
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu, 30013 Taiwan
| | - Yuchuan Su
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu, 30013 Taiwan
| | - Jude Curran
- Department of Mechanical, Materials and Aerospace, School of Engineering, Harrison Hughes Building, University of Liverpool, Liverpool, L69 3GH U.K
| | - James R. Henstock
- Institute of Life Course & Medical Sciences, William Henry Duncan Building, University of Liverpool, Liverpool, L7 8TX U.K
| | - Fangang Tseng
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu, 30013 Taiwan
- Department of Engineering and System Science, Frontier Research Centre On Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu, 30013 Taiwan
- Research Centre for Applied Sciences, Academia Sinica, No. 128, Sec. 2, Academia Rd., Nankang, 11529 Taipei Taiwan
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Yi J, Liu Q, Zhang Q, Chew TG, Ouyang H. Modular protein engineering-based biomaterials for skeletal tissue engineering. Biomaterials 2022; 282:121414. [DOI: 10.1016/j.biomaterials.2022.121414] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 04/27/2021] [Accepted: 05/19/2021] [Indexed: 12/24/2022]
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Rahimizadeh P, Rezaieyazdi Z, Behzadi F, Hajizade A, Lim SI. Nanotechnology as a promising platform for rheumatoid arthritis management: Diagnosis, treatment, and treatment monitoring. Int J Pharm 2021; 609:121137. [PMID: 34592396 DOI: 10.1016/j.ijpharm.2021.121137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 09/16/2021] [Accepted: 09/23/2021] [Indexed: 12/18/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease that develops in about 5 per 1000 people. Over the past years, substantial progresses in knowledge of the disease's pathophysiology, effective diagnosis methods, early detection, and efficient treatment strategies have been made. Notably, nanotechnology has emerged as a game-changer in the efficacious management of many diseases, especially for RA. Joint replacement, photothermal therapy (PTT), photodynamic therapy (PDT), RA diagnosis, and treatment monitoring are nano-based avenues in RA management. Here, we present a brief overview of the pathogenesis of RA, risk factors, conventional diagnostic methods and treatment approaches, and then discuss the role of nanomedicine in RA diagnosis, treatment, and treatment monitoring with an emphasis on functional characteristics distinctive from other RA therapeutics.
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Affiliation(s)
- Parastou Rahimizadeh
- Department of Chemical Engineering, Pukyong National University, Busan 48513, South Korea
| | - Zahra Rezaieyazdi
- Rheumatic Disease Research Center, Mashhad University of Medical Science, Mashhad, Iran
| | - Faezeh Behzadi
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Abbas Hajizade
- Biology Research Centre, Faculty of Basic Sciences, Imam Hossein University, Tehran, Iran.
| | - Sung In Lim
- Department of Chemical Engineering, Pukyong National University, Busan 48513, South Korea.
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Walker M, Luo J, Pringle EW, Cantini M. ChondroGELesis: Hydrogels to harness the chondrogenic potential of stem cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 121:111822. [PMID: 33579465 DOI: 10.1016/j.msec.2020.111822] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 01/01/2023]
Abstract
The extracellular matrix is a highly complex microenvironment, whose various components converge to regulate cell fate. Hydrogels, as water-swollen polymer networks composed by synthetic or natural materials, are ideal candidates to create biologically active substrates that mimic these matrices and target cell behaviour for a desired tissue engineering application. Indeed, the ability to tune their mechanical, structural, and biochemical properties provides a framework to recapitulate native tissues. This review explores how hydrogels have been engineered to harness the chondrogenic response of stem cells for the repair of damaged cartilage tissue. The signalling processes involved in hydrogel-driven chondrogenesis are also discussed, identifying critical pathways that should be taken into account during hydrogel design.
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Affiliation(s)
- Matthew Walker
- Centre for the Cellular Microenvironment, James Watt School of Engineering, University of Glasgow, UK
| | - Jiajun Luo
- Centre for the Cellular Microenvironment, James Watt School of Engineering, University of Glasgow, UK
| | - Eonan William Pringle
- Centre for the Cellular Microenvironment, James Watt School of Engineering, University of Glasgow, UK
| | - Marco Cantini
- Centre for the Cellular Microenvironment, James Watt School of Engineering, University of Glasgow, UK.
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Abstract
The biologic steps involved in creating a bony fusion between adjacent segments of the spine are a complex and highly coordinated series of events. There have been significant advancements in bone grafts and bone graft substitutes in order to augment spinal fusion. While autologous bone grafting remains the gold standard, allograft bone grafting, synthetic bone graft substitutes, and bone graft enhancers are appropriate in certain clinical situations. This article provides an overview of the basic biology of spinal fusion and strategies for enhancing fusion through innovations in bone graft material.
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Zhao W, Li Y, Zhou A, Chen X, Li K, Chen S, Qiao B, Jiang D. Controlled release of basic fibroblast growth factor from a peptide biomaterial for bone regeneration. ROYAL SOCIETY OPEN SCIENCE 2020; 7:191830. [PMID: 32431879 PMCID: PMC7211882 DOI: 10.1098/rsos.191830] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 02/12/2020] [Indexed: 05/13/2023]
Abstract
Self-assembled peptide scaffolds based on D-RADA16 are an important matrix for controlled drug release and three-dimensional cell culture. In this work, D-RADA16 peptide hydrogels were coated on artificial bone composed of nano-hydroxyapatite/polyamide 66 (nHA/PA66) to obtain a porous drug-releasing structure for treating bone defects. The developed materials were characterized via transmission electron microscopy and scanning electron microscopy. The proliferation and adhesion of bone mesenchymal stem cells (BMSCs) were examined by confocal laser microscopy and CCK-8 experiments. The osteogenic ability of the porous materials towards bone BMSCs was examined in vitro by staining with Alizarin Red S and alkaline phosphatase, and bioactivity was evaluated in vivo. The results revealed that nHA/PA66/D-RADA16/bFGF reduces the degradation rate of D-RADA16 hydrogels and prolongs sustained release of bFGF, which would promote BMSCs proliferation, adhesion and osteogenesis in vitro and bone repair in vivo. Thus, it deserves more attention and is worthy of further research.
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Affiliation(s)
- WeiKang Zhao
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Chongqing, Yuzhong District 400016, People's Republic of China
- Department of Orthopaedics, Third Affiliated Hospital of Chongqing Medical University, No. 1 Shuanghu Road, Chongqing City, Yubei District 401120, People's Republic of China
| | - Yuling Li
- Department of Orthopaedics, Affiliated Hospital of North Sichuan Medical College, No. 63 Wenhua Road, Nanchong City, Sichuan Province 637000, People's Republic of China
| | - Ao Zhou
- Department of Orthopaedics, Third Affiliated Hospital of Chongqing Medical University, No. 1 Shuanghu Road, Chongqing City, Yubei District 401120, People's Republic of China
| | - Xiaojun Chen
- Department of Orthopaedics, Hospital (T.C.M) Affiliated to Southwest Medical University, No. 182 Chunhui Road, Luzhou City, Sichuan Province, 646000, People's Republic of China
| | - Kai Li
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Chongqing, Yuzhong District 400016, People's Republic of China
- Department of Orthopaedics, Third Affiliated Hospital of Chongqing Medical University, No. 1 Shuanghu Road, Chongqing City, Yubei District 401120, People's Republic of China
| | - Sinan Chen
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Chongqing, Yuzhong District 400016, People's Republic of China
- Department of Orthopaedics, Third Affiliated Hospital of Chongqing Medical University, No. 1 Shuanghu Road, Chongqing City, Yubei District 401120, People's Republic of China
| | - Bo Qiao
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Chongqing, Yuzhong District 400016, People's Republic of China
| | - Dianming Jiang
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Chongqing, Yuzhong District 400016, People's Republic of China
- Department of Orthopaedics, Third Affiliated Hospital of Chongqing Medical University, No. 1 Shuanghu Road, Chongqing City, Yubei District 401120, People's Republic of China
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De Pascale MR, Della Mura N, Vacca M, Napoli C. Useful applications of growth factors for cardiovascular regenerative medicine. Growth Factors 2020; 38:35-63. [PMID: 33028111 DOI: 10.1080/08977194.2020.1825410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Novel advances for cardiovascular diseases (CVDs) include regenerative approaches for fibrosis, hypertrophy, and neoangiogenesis. Studies indicate that growth factor (GF) signaling could promote heart repair since most of the evidence is derived from preclinical models. Observational studies have evaluated GF serum/plasma levels as feasible biomarkers for risk stratification of CVDs. Noteworthy, two clinical interventional published studies showed that the administration of growth factors (GFs) induced beneficial effect on left ventricular ejection fraction (LVEF), myocardial perfusion, end-systolic volume index (ESVI). To date, large scale ongoing studies are in Phase I-II and mostly focussed on intramyocardial (IM), intracoronary (IC) or intravenous (IV) administration of vascular endothelial growth factor (VEGF) and fibroblast growth factor-23 (FGF-23) which result in the most investigated GFs in the last 10 years. Future data of ongoing randomized controlled studies will be crucial in understanding whether GF-based protocols could be in a concrete way effective in the clinical setting.
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Affiliation(s)
| | | | - Michele Vacca
- Division of Immunohematology and Transfusion Medicine, Cardarelli Hospital, Naples, Italy
| | - Claudio Napoli
- IRCCS Foundation SDN, Naples, Italy
- Clinical Department of Internal Medicine and Specialistics, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
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Pugliese R, Maleki M, Zuckermann RN, Gelain F. Self-assembling peptides cross-linked with genipin: resilient hydrogels and self-standing electrospun scaffolds for tissue engineering applications. Biomater Sci 2019; 7:76-91. [PMID: 30475373 DOI: 10.1039/c8bm00825f] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Self-assembling peptides (SAPs) are synthetic bioinspired biomaterials that can be feasibly multi-functionalized for applications in surgery, drug delivery, optics and tissue engineering (TE). Despite their promising biocompatibility and biomimetic properties, they have never been considered real competitors of polymers and/or cross-linked extracellular matrix (ECM) natural proteins. Indeed, synthetic SAP-made hydrogels usually feature modest mechanical properties, limiting their potential applications, due to the transient non-covalent interactions involved in the self-assembling phenomenon. Cross-linked SAP-hydrogels have been recently introduced to bridge this gap, but several questions remain open. New strategies leading to stiffer gels of SAPs may allow for a full exploitation of the SAP technology in TE and beyond. We have developed and characterized a genipin cross-linking strategy significantly increasing the stiffness and resiliency of FAQ(LDLK)3, a functionalized SAP already used for nervous cell cultures. We characterized different protocols of cross-linking, analyzing their dose and time-dependent efficiency, influencing stiffness, bioabsorption time and molecular arrangements. We choose the best developed protocol to electrospin into nanofibers, for the first time, self-standing, water-stable and flexible fibrous mats and micro-channels entirely made of SAPs. This work may open the door to the development and tailoring of bioprostheses entirely made of SAPs for different TE applications.
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Affiliation(s)
- Raffaele Pugliese
- IRCSS Casa Sollievo della Sofferenza, Unità di Ingegneria Tissutale, Viale Cappuccini 1, San Giovanni Rotondo, FG 71013, Italy.
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Fukunaga K, Tsutsumi H, Mihara H. Self-Assembling Peptides as Building Blocks of Functional Materials for Biomedical Applications. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180293] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Kazuto Fukunaga
- School of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-40, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Hiroshi Tsutsumi
- School of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-40, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Hisakazu Mihara
- School of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-40, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
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11
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Zhao W, He B, Zhou A, Li Y, Chen X, Yang Q, Chen B, Qiao B, Jiang D. D-RADA16-RGD-Reinforced Nano-Hydroxyapatite/Polyamide 66 Ternary Biomaterial for Bone Formation. Tissue Eng Regen Med 2019; 16:177-189. [PMID: 30989044 DOI: 10.1007/s13770-018-0171-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 11/11/2018] [Accepted: 11/23/2018] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Nano-hydroxyapatite/polyamide 66 (nHA/PA66) is a composite used widely in the repair of bone defects. However, this material is insufficient bioactivity. In contrast, D-RADA16-RGD self-assembling peptide (D-RADA16-RGD sequence containing all D-amino acids is Ac-RADARADARADARADARGDS-CONH2) shows admirable bioactivity for both cell culture and bone regeneration. Here, we describe the fabrication of a favorable biomaterial material (nHA/PA66/D-RADA16-RGD). METHODS Proteinase K and circular dichroism spectroscopy were employed to test the stability and secondary structural properties of peptide D-RADA16-RGD respectively. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to characterize the surface of these materials. Confocal laser scanning (CLS), cell counting kit-8 tests (CCK-8), alizarin red S staining, cell immunofluorescence analysis and Western blotting were involved in vitro. Also biosafety and bioactivity of them have been evaluated in vivo. RESULTS Proteinase K and circular dichroism spectroscopy demonstrated that D-RADA16-RGD in nHA/PA66 was able to form stable-sheet secondary structure. SEM and TEM showed that the D-RADA16-RGD material was 7-33 nm in width and 130-600 nm in length, and the interwoven pore size ranged from 40 to 200 nm. CLS suggests that cells in nHA/PA66/D-RADA16-RGD group were linked to adjacent cells with more actin filaments. CCK-8 analysis showed that nHA/PA66/D-RADA16-RGD revealed good biocompatibility. The results of Alizarin-red S staining and Western blotting as well as vivo osteogenesis suggest nHA/PA66/D-RADA16-RGD exhibits better bioactivity. CONCLUSION This study demonstrates that our nHA/PA66/D-RADA16-RGD composite exhibits reasonable mechanical properties, biocompatibility and bioactivity with promotion of bone formation.
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Affiliation(s)
- WeiKang Zhao
- 1The First Affiliated Hospital of Chongqing Medical University, No 1 Medicine Road, Yuzhong District, Chongqing, 400016 People's Republic of China.,2The Third Affiliated Hospital of Chongqing Medical University, No 1 Shuanghu Road, Yubei District, Chongqing, 401120 People's Republic of China
| | - Bin He
- 1The First Affiliated Hospital of Chongqing Medical University, No 1 Medicine Road, Yuzhong District, Chongqing, 400016 People's Republic of China
| | - Ao Zhou
- 2The Third Affiliated Hospital of Chongqing Medical University, No 1 Shuanghu Road, Yubei District, Chongqing, 401120 People's Republic of China
| | - Yuling Li
- Affiliated Hospital of Northern, Sichuan Medical University, Cultural Road 63, Nanchong City, 637000 Sichuan Province People's Republic of China
| | - Xiaojun Chen
- 2The Third Affiliated Hospital of Chongqing Medical University, No 1 Shuanghu Road, Yubei District, Chongqing, 401120 People's Republic of China
| | - Qiming Yang
- 2The Third Affiliated Hospital of Chongqing Medical University, No 1 Shuanghu Road, Yubei District, Chongqing, 401120 People's Republic of China
| | - Beike Chen
- 1The First Affiliated Hospital of Chongqing Medical University, No 1 Medicine Road, Yuzhong District, Chongqing, 400016 People's Republic of China.,2The Third Affiliated Hospital of Chongqing Medical University, No 1 Shuanghu Road, Yubei District, Chongqing, 401120 People's Republic of China
| | - Bo Qiao
- 1The First Affiliated Hospital of Chongqing Medical University, No 1 Medicine Road, Yuzhong District, Chongqing, 400016 People's Republic of China
| | - Dianming Jiang
- 1The First Affiliated Hospital of Chongqing Medical University, No 1 Medicine Road, Yuzhong District, Chongqing, 400016 People's Republic of China.,2The Third Affiliated Hospital of Chongqing Medical University, No 1 Shuanghu Road, Yubei District, Chongqing, 401120 People's Republic of China
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Wang Z, Li K, Sun H, Wang J, Fu Z, Liu M. Icariin promotes stable chondrogenic differentiation of bone marrow mesenchymal stem cells in self‑assembling peptide nanofiber hydrogel scaffolds. Mol Med Rep 2018; 17:8237-8243. [PMID: 29693145 PMCID: PMC5984004 DOI: 10.3892/mmr.2018.8913] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 12/22/2016] [Indexed: 12/29/2022] Open
Abstract
Icariin, a traditional Chinese medicine, has previously been demonstrated to promote chondrogenesis of bone marrow mesenchymal stem cells (BMSCs) in traditional 2D cell culture. The present study investigated whether icariin has the potential to promote stable chondrogenic differentiation of BMSCs without hypertrophy in a 3D microenvironment. BMSCs were cultivated in a self-assembling peptide nanofiber hydrogel scaffold in chondrogenic medium for 3 weeks. Icariin was added to the medium throughout the culture period at concentrations of 1×10−6 M. Chondrogenic differentiation markers, including collagen II and SRY-type high mobility group box 9 (SOX9) were detected by immunofluorescence, reverse transcription-quantitative polymerase chain reaction and toluidine blue staining. Hypertrophic differentiation was further assessed by detecting collagen X and collagen I gene expression levels and alkaline phosphatase activity. The results demonstrated that icariin significantly enhanced cartilage extracellular matrix synthesis and gene expression levels of collagen II and SOX9, and additionally promoted more chondrocyte-like rounded morphology in BMSCs. Furthermore, chondrogenic medium led to hypertrophic differentiation via upregulation of collagen X and collagen I gene expression levels and alkaline phosphatase activity, which was not potentiated by icariin. In conclusion, these results suggested that icariin treatment may promote chondrogenic differentiation of BMSCs, and inhibit the side effect of growth factor activity, thus preventing further hypertrophic differentiation. Therefore, icariin may be a potential compound for cartilage tissue engineering.
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Affiliation(s)
- Zhicong Wang
- Department of Orthopedic Surgery, People's Hospital of Deyang City, Deyang, Sichuan 618000, P.R. China
| | - Kaihua Li
- Department of Orthopedic Surgery, General Hospital of Fengfeng Group, Handan, Hebei 056200, P.R. China
| | - Huijun Sun
- Department of Clinical Pharmacology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Ji Wang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Zhuodong Fu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Mozhen Liu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
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He B, Zhao J, Ou Y, Jiang D. Biofunctionalized peptide nanofiber-based composite scaffolds for bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 90:728-738. [PMID: 29853144 DOI: 10.1016/j.msec.2018.04.063] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 04/15/2018] [Accepted: 04/19/2018] [Indexed: 12/21/2022]
Abstract
Bone tissue had moderate self-healing capabilities, but biomaterial scaffolds were required for the repair of some defects such as large bone defects. Peptide nanofiber scaffolds demonstrated important potential in regenerative medicine. Functional modification and controlled release of signal molecules were two significant approaches to increase the bioactivity of biofunctionalized peptide nanofiber scaffolds, but peptide scaffolds were limited by insufficient mechanical strength. Thus, it was necessary to combine peptide scaffolds with other materials including polymers, hydroxyapatite, demineralized bone matrix (DBM) and metal materials based on the requirement of different bone defects. As the development of peptide-based composite scaffolds continued to evolve, ultimate translation to the clinical environment may allow for improved therapeutic outcomes for bone repair.
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Affiliation(s)
- Bin He
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Jinqiu Zhao
- Department of Infectious Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yunsheng Ou
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Dianming Jiang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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Li X, Cheng S, Wu Y, Ying J, Wang C, Wen T, Bai X, Ji W, Wang D, Ruan D. Functional self-assembled peptide scaffold inhibits tumor necrosis factor-alpha-induced inflammation and apoptosis in nucleus pulposus cells by suppressing nuclear factor-κB signaling. J Biomed Mater Res A 2017; 106:1082-1091. [PMID: 29164771 DOI: 10.1002/jbm.a.36301] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 10/28/2017] [Accepted: 11/14/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Xiaochuan Li
- Department of Orthopedic Surgery; Navy General Hospital; Beijing People's Republic of China
- Department of Orthopedic Surgery; The People's Hospital of Gaozhou; Guangdong People's Republic of China
| | - Shi Cheng
- Department of Orthopedic Surgery; Navy General Hospital; Beijing People's Republic of China
| | - Yaohong Wu
- Department of Orthopedic Surgery; Navy General Hospital; Beijing People's Republic of China
- Department of Spinal Surgery; The Affiliated Ganzhou Hospital of Nanchang University; Ganzhou Jiangxi People's Republic of China
| | - Jingwei Ying
- Department of Orthopedic Surgery; Navy General Hospital; Beijing People's Republic of China
| | - Chaofeng Wang
- Department of Orthopedic Surgery; Navy General Hospital; Beijing People's Republic of China
| | - Tianyong Wen
- Department of Orthopedic Surgery; Navy General Hospital; Beijing People's Republic of China
| | - Xuedong Bai
- Department of Orthopedic Surgery; Navy General Hospital; Beijing People's Republic of China
| | - Wei Ji
- Department of Orthopedic Surgery; Navy General Hospital; Beijing People's Republic of China
| | - Deli Wang
- Department of Orthopedic Surgery; Navy General Hospital; Beijing People's Republic of China
| | - Dike Ruan
- Department of Orthopedic Surgery; Navy General Hospital; Beijing People's Republic of China
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15
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Li R, Xu J, Wong DSH, Li J, Zhao P, Bian L. Self-assembled N-cadherin mimetic peptide hydrogels promote the chondrogenesis of mesenchymal stem cells through inhibition of canonical Wnt/β-catenin signaling. Biomaterials 2017; 145:33-43. [PMID: 28843065 DOI: 10.1016/j.biomaterials.2017.08.031] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 08/15/2017] [Indexed: 12/14/2022]
Abstract
N-cadherin, a transmembrane protein and major component of adherens junction, mediates cell-cell interactions and intracellular signaling that are important to the regulation of cell behaviors and organ development. Previous studies have identified mimetic peptides that possess similar bioactivity as that of N-cadherin, which promotes chondrogenesis of human mesenchymal stem cells (hMSCs); however, the molecular mechanism remains unknown. In this study, we combined the N-cadherin mimetic peptide (HAVDI) with the self-assembling KLD-12 peptide: the resultant peptide is capable of self-assembling into hydrogels functionalized with N-cadherin peptide in phosphate-buffered saline (PBS) at 37 °C. Encapsulation of hMSCs in these hydrogels showed enhanced expression of chondrogenic marker genes and deposition of cartilage specific extracellular matrix rich in proteoglycan and Type II Collagen compared to control hydrogels, with a scrambled-sequence peptide after 14 days of chondrogenic culture. Furthermore, western blot showed a significantly higher expression of active glycogen synthase kinase-3β (GSK-3β), which phosphorylates β-catenin and facilitates ubiquitin-mediated degradation, as well as a lower expression of β-catenin and LEF1 in the N-cadherin peptide hydrogels versus controls. Immunofluorescence staining revealed significantly less nuclear localization of β-catenin in N-cadherin mimetic peptide hydrogels. Our findings suggest that N-cadherin peptide hydrogels suppress canonical Wnt signaling in hMSCs by reducing β-catenin nuclear translocation and the associated transcriptional activity of β-catenin/LEF-1/TCF complex, thereby enhancing the chondrogenesis of hMSCs. Our biomimetic self-assembled peptide hydrogels can serve as a tailorable and versatile three-dimensional culture platform to investigate the effect of biofunctionalization on stem cell behavior.
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Affiliation(s)
- Rui Li
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Jianbin Xu
- Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, PR China; Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Dexter Siu Hong Wong
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Jinming Li
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Pengchao Zhao
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Liming Bian
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong; China Orthopedic Regenerative Medicine Group (CORaMed), Hangzhou, PR China; Centre for Novel Biomaterials, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.
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16
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Cao Z, Dou C, Li J, Tang X, Xiang J, Zhao C, Zhu L, Bai Y, Xiang Q, Dong S. Cordycepin inhibits chondrocyte hypertrophy of mesenchymal stem cells through PI3K/Bapx1 and Notch signaling pathway. BMB Rep 2017; 49:548-553. [PMID: 27439604 PMCID: PMC5227296 DOI: 10.5483/bmbrep.2016.49.10.071] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Indexed: 12/25/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are widely used in cartilage tissue engineering to repair articular cartilage defects. However, hypertrophy of chondrocytes derived from MSCs might hinder the stabilization of hyaline cartilage. Thus, it is very important to find a suitable way to maintain the chondrogenic phenotype of chondrocytes. It has been reported that cordycepin has anti-inflammatory and anti-tumor functions. However, the role of cordycepin in chondrocyte hypertrophy remains unclear. Therefore, the objective of this study was to determine the effect of cordycepin on chondrogenesis and chondrocyte hypertrophy in MSCs and ATDC5 cells. Cordycepin upregulated chondrogenic markers including Sox9 and collagen type II while down-regulated hypertrophic markers including Runx2 and collagen type X. Further exploration showed that cordycepin promoted chondrogenesis through inhibiting Nrf2 while activating BMP signaling. Besides, cordycepin suppressed chondrocyte hypertrophy through PI3K/Bapx1 pathway and Notch signaling. Our results indicated cordycepin had the potential to maintain chondrocyte phenotype and reconstruct engineered cartilage. [BMB Reports 2016; 49(10): 548-553]
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Affiliation(s)
- Zhen Cao
- Department of Anatomy, Third Military Medical University and National & Regional United Engineering Laboratory of Tissue Engineering, Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China
| | - Ce Dou
- National & Regional United Engineering Laboratory of Tissue Engineering, Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China
| | - Jianmei Li
- National & Regional United Engineering Laboratory of Tissue Engineering, Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China
| | - Xiangyu Tang
- National & Regional United Engineering Laboratory of Tissue Engineering, Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China
| | - Junyu Xiang
- National & Regional United Engineering Laboratory of Tissue Engineering, Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China
| | - Chunrong Zhao
- National & Regional United Engineering Laboratory of Tissue Engineering, Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China
| | - Lingyu Zhu
- National & Regional United Engineering Laboratory of Tissue Engineering, Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China
| | - Yun Bai
- National & Regional United Engineering Laboratory of Tissue Engineering, Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China
| | - Qiang Xiang
- Department of Emergency, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Shiwu Dong
- National & Regional United Engineering Laboratory of Tissue Engineering, Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China
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17
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He B, Ou Y, Chen S, Zhao W, Zhou A, Zhao J, Li H, Jiang D, Zhu Y. Designer bFGF-incorporated d-form self-assembly peptide nanofiber scaffolds to promote bone repair. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 74:451-458. [PMID: 28254316 DOI: 10.1016/j.msec.2016.12.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Revised: 11/21/2016] [Accepted: 12/09/2016] [Indexed: 10/20/2022]
Abstract
d-Form and l-form peptide nanofiber scaffolds can spontaneously form stable β-sheet secondary structures and nanofiber hydrogel scaffolds, and hold some promise in hemostasis and wound healing. We report here on the synthetic self-assembling peptide d-RADA16 and l-RADA16 are both found to produce stable β-sheet secondary structure and nanofiber hydrogel scaffolds based on circular dichroism (CD) spectroscopy, transmission electron microscopy (TEM) and rheology analysis etc. d-RADA16 hydrogel and l-RADA16 hydrogel can enhance obvious bone repair in femoral condyle defects of the Sprague-Dawley (SD) rat model compared to PBS treatment. Based on micro-computed tomography (CT), it was revealed that d-RADA16 hydrogel and l-RADA16 hydrogel were capable to obtain the extensive bone healing. Histological evaluation also found that these two hydrogels facilitate the presence of more mature bone tissue within the femoral condyle defects. Additionally, d-RADA16 hydrogel showed some potential in storing and releasing basic-fibroblast growth factor (bFGF) which was able to further promote bone regeneration based on micro-CT analysis. These results indicate that d-form peptide nanofiber hydrogel have some special capacity for bone repair.
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Affiliation(s)
- Bin He
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Yunsheng Ou
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Shuo Chen
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Weikang Zhao
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Ao Zhou
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Jinqiu Zhao
- Department of Infectious Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Hong Li
- School of Physical Science and Technology, Sichuan University, Chengdu 610000, China
| | - Dianming Jiang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yong Zhu
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
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18
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Pugliese R, Gelain F. Peptidic Biomaterials: From Self-Assembling to Regenerative Medicine. Trends Biotechnol 2016; 35:145-158. [PMID: 27717599 DOI: 10.1016/j.tibtech.2016.09.004] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 09/07/2016] [Accepted: 09/13/2016] [Indexed: 11/29/2022]
Abstract
Peptidic biomaterials represent a particularly exciting topic in regenerative medicine. Peptidic scaffolds can be specifically designed for biomimetic customization for targeted therapy. The field is at a pivotal point where preclinical research is being translated into clinics, so it is crucial to understand the theory and describe the status of this rapidly developing technology. In this review, we highlight major advantages and current limitations of self-assembling peptide-based biomaterials, and we discuss the most widely used classes of assembling peptides, describing recent and promising approaches in tissue engineering, drug delivery, and clinics. We also suggest design strategies and hurdles that still need to be overcome to fully exploit their therapeutic potential.
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Affiliation(s)
- Raffaele Pugliese
- IRCCS Casa Sollievo della Sofferenza, Opera di San Pio da Pietrelcina, Viale Cappuccini, 1, 71013 San Giovanni Rotondo (FG), Italy
| | - Fabrizio Gelain
- IRCCS Casa Sollievo della Sofferenza, Opera di San Pio da Pietrelcina, Viale Cappuccini, 1, 71013 San Giovanni Rotondo (FG), Italy; Center for Nanomedicine and Tissue Engineering (CNTE), A. O. Ospedale Niguarda Cà Granda, Piazza dell' Ospedale Maggiore 3, 20162 Milan, Italy.
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19
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20
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He B, Ou Y, Zhou A, Chen S, Zhao W, Zhao J, Li H, Zhu Y, Zhao Z, Jiang D. Functionalized d-form self-assembling peptide hydrogels for bone regeneration. DRUG DESIGN DEVELOPMENT AND THERAPY 2016; 10:1379-88. [PMID: 27114701 PMCID: PMC4833366 DOI: 10.2147/dddt.s97530] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Bone defects are very common in orthopedics, and there is great need to develop suitable bone grafts for transplantation in vivo. However, current bone grafts still encounter some limitations, including limited availability, immune rejection, poor osteoinduction and osteoconduction, poor biocompatibility and degradation properties, etc. Self-assembling peptide nanofiber scaffolds have emerged as an important substrate for cell culture and bone regeneration. We report on the structural features (eg, Congo red staining, circular dichroism spectroscopy, transmission electron microscopy, and rheometry assays) and osteogenic ability of d-RADA16-RGD peptide hydrogels (with or without basic fibroblast growth factor) due to the better stability of peptide bonds formed by these peptides compared with those formed by l-form peptides, and use them to fill the femoral condyle defect of Sprague Dawley rat model. The bone morphology change, two-dimensional reconstructions using microcomputed tomography, quantification of the microcomputed tomography analyses as well as histological analyses have demonstrated that RGD-modified d-form peptide scaffolds are able to enhance extensive bone regeneration.
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Affiliation(s)
- Bin He
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Yunsheng Ou
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Ao Zhou
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Shuo Chen
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Weikang Zhao
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Jinqiu Zhao
- Department of Infectious Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Hong Li
- School of Physical Science and Technology, Sichuan University, Chengdu, People's Republic of China
| | - Yong Zhu
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Zenghui Zhao
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Dianming Jiang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
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21
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Palma M, Hardy JG, Tadayyon G, Farsari M, Wind SJ, Biggs MJ. Advances in Functional Assemblies for Regenerative Medicine. Adv Healthc Mater 2015; 4:2500-19. [PMID: 26767738 DOI: 10.1002/adhm.201500412] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 08/16/2015] [Indexed: 12/17/2022]
Abstract
The ability to synthesise bioresponsive systems and selectively active biochemistries using polymer-based materials with supramolecular features has led to a surge in research interest directed towards their development as next generation biomaterials for drug delivery, medical device design and tissue engineering.
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Affiliation(s)
- Matteo Palma
- Department of Chemistry & Biochemistry School of Biological and Chemical Sciences; Queen Mary University of London; London E1 4NS UK
| | - John G. Hardy
- Department of Chemistry; Materials Science Institute; Lancaster University; Lancaster LA1 4YB UK
| | - Ghazal Tadayyon
- Centre for Research in Medical Devices (CURAM); National University of Ireland Galway; Newcastle Road Dangan Ireland
| | - Maria Farsari
- Institute of Electronic Structure and Laser; Crete Greece
| | | | - Manus J. Biggs
- Centre for Research in Medical Devices (CURAM); National University of Ireland Galway; Newcastle Road Dangan Ireland
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22
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Qiang N, Tang S, Shi XJ, Li H, Ma YH, Tao HX, Lin Q. Synthesis of functional polyester for fabrication of nano-fibrous scaffolds and its effect on PC12 cells. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2015; 27:191-201. [PMID: 26514960 DOI: 10.1080/09205063.2015.1114308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
An ideal scaffold should mimic the advantageous characteristics of a natural extracellular matrix for cell attachment, proliferation, and differentiation. In this study, well-defined block copolymer with functional groups was synthesized. The structure of the block copolymer was characterized by nuclear magnetic resonance, gel permeation chromatography, and differential scanning calorimetry. Thermally induced phase separation was employed to fabricate nano-fibrous scaffolds based on the synthesized block copolymer. The scaffold, with fiber diameter ranging from 400 to 500 nm, was fabricated for in vitro culture of PC12 cells. The carboxyl groups on the side chain resulted in increased hydrophilicity of nano-fibrous scaffolds and enhanced cell proliferation. In addition, this scaffold structure was beneficial in directing the growth of regenerating axons in nerve tissue engineering. Results of 3-(4,5-dimethylthiazol-2yl)-2,5-diphenyltetrazolium bromide (MTT) assay and scanning electron microscopy confirmed that the nano-fibrous scaffolds with functional groups were suitable for PC12 cells growth. Moreover, the carboxyl groups were suitable for coupling with biological signals. Thus, the nano-fibrous scaffolds have potential applications in tissue engineering.
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Affiliation(s)
- Na Qiang
- a Department of Chemical Engineering , Huizhou University , Huizhou , China
| | - Shuo Tang
- b Department of Orthopaedics , West China Hospital, Sichuan University , Chengdu , China.,c Department of Orthopaedics , Mianyang Center Hospital , Mianyang , China
| | - Xiao-jun Shi
- b Department of Orthopaedics , West China Hospital, Sichuan University , Chengdu , China
| | - Hao Li
- a Department of Chemical Engineering , Huizhou University , Huizhou , China
| | - Yi-hong Ma
- a Department of Chemical Engineering , Huizhou University , Huizhou , China
| | - Hai-xia Tao
- a Department of Chemical Engineering , Huizhou University , Huizhou , China
| | - Qiang Lin
- d Department of Orthopaedics , Guangdong Hospital of Traditional Chinese Medicine , Guangzhou , China
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23
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Li KC, Hu YC. Cartilage tissue engineering: recent advances and perspectives from gene regulation/therapy. Adv Healthc Mater 2015; 4:948-68. [PMID: 25656682 DOI: 10.1002/adhm.201400773] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 01/10/2015] [Indexed: 12/16/2022]
Abstract
Diseases in articular cartilages affect millions of people. Despite the relatively simple biochemical and cellular composition of articular cartilages, the self-repair ability of cartilage is limited. Successful cartilage tissue engineering requires intricately coordinated interactions between matrerials, cells, biological factors, and phycial/mechanical factors, and still faces a multitude of challenges. This article presents an overview of the cartilage biology, current treatments, recent advances in the materials, biological factors, and cells used in cartilage tissue engineering/regeneration, with strong emphasis on the perspectives of gene regulation (e.g., microRNA) and gene therapy.
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Affiliation(s)
- Kuei-Chang Li
- Department of Chemical Engineering; National Tsing Hua University; Hsinchu Taiwan 300
| | - Yu-Chen Hu
- Department of Chemical Engineering; National Tsing Hua University; Hsinchu Taiwan 300
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24
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Yuan X, He B, Lv Z, Luo S. Fabrication of self-assembling peptide nanofiber hydrogels for myocardial repair. RSC Adv 2014. [DOI: 10.1039/c4ra08582e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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