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Chon JW, Kim H, Jeon HN, Park K, Lee KG, Yeo JH, Kweon H, Lee HS, Jo YY, Park YK. Silk fibroin hydrolysate inhibits osteoclastogenesis and induces apoptosis of osteoclasts derived from RAW 264.7 cells. Int J Mol Med 2012; 30:1203-10. [PMID: 22960876 DOI: 10.3892/ijmm.2012.1120] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2011] [Accepted: 01/02/2012] [Indexed: 11/06/2022] Open
Abstract
Bone disease can be associated with bone resorption by osteoclasts, and interest in the development of antiresorptive agents has recently increased. The hydrolysate of silk fibroin has been studied with respect to such biomedical applications. In a previous study, silk fibroin showed indirect inhibitory effects on the differentiation of osteoclasts. To further evaluate the effect of a hydrolysate of silk fibroin on osteoclasts, we investigated the direct effects of the silk fibroin hydrolysate on osteoclastogenesis and apoptosis of osteoclasts induced by receptor activation of nuclear factor κB ligand (RANKL). The silk fibroin hydrolysate inhibited RANKL-induced formation of tartrate-resistant acid phosphatase (TRAP) in RAW 264.7 cells. The inhibitory effect of the silk fibroin hydrolysate resulted in the decreased expression of osteoclast marker genes, such as matrix metalloproteinase-9 (MMP-9), cathepsin-K and calcitonin receptor (CTR). In addition, the silk fibroin hydrolysate blocked the signaling pathways of mitogen-activated protein kinase (MAPK) and nuclear factor-κB (NF-κB) and expression of transcription factors, such as nuclear factor of activated T cells c1 (NFATc1) and NF-κB. Finally, the silk fibroin hydrolysate induced apoptosis signaling cascades. Taken together, the present results indicate that silk fibroin hydrolysate has antiresorptive activity by both inhibiting osteoclastogenesis and inducing osteoclast apoptosis.
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Affiliation(s)
- Jeon-Woo Chon
- Sericultural and Apicultural Materials Division, National Academy of Agricultural Science, RDA, Suwon 441-100, Republic of Korea
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Silk constructs for delivery of musculoskeletal therapeutics. Adv Drug Deliv Rev 2012; 64:1111-22. [PMID: 22522139 DOI: 10.1016/j.addr.2012.03.016] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Revised: 02/28/2012] [Accepted: 03/05/2012] [Indexed: 12/13/2022]
Abstract
Silk fibroin (SF) is a biopolymer with distinguishing features from many other bio- as well as synthetic polymers. From a biomechanical and drug delivery perspective, SF combines remarkable versatility for scaffolding (solid implants, hydrogels, threads, solutions), with advanced mechanical properties and good stabilization and controlled delivery of entrapped protein and small molecule drugs, respectively. It is this combination of mechanical and pharmaceutical features which renders SF so exciting for biomedical applications. This pattern along with the versatility of this biopolymer has been translated into progress for musculoskeletal applications. We review the use and potential of silk fibroin for systemic and localized delivery of therapeutics in diseases affecting the musculoskeletal system. We also present future directions for this biopolymer as well as the necessary research and development steps for their achievement.
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Bhattacharjee M, Miot S, Gorecka A, Singha K, Loparic M, Dickinson S, Das A, Bhavesh NS, Ray AR, Martin I, Ghosh S. Oriented lamellar silk fibrous scaffolds to drive cartilage matrix orientation: towards annulus fibrosus tissue engineering. Acta Biomater 2012; 8:3313-25. [PMID: 22641105 DOI: 10.1016/j.actbio.2012.05.023] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2012] [Revised: 04/03/2012] [Accepted: 05/18/2012] [Indexed: 11/20/2022]
Abstract
A novel design of silk-based scaffold is developed using a custom-made winding machine, with fiber alignment resembling the anatomical criss-cross lamellar fibrous orientation features of the annulus fibrosus of the intervertebral disc. Crosslinking of silk fibroin fibers with chondroitin sulphate (CS) was introduced to impart superior biological functionality. The scaffolds, with or without CS, instructed alignment of expanded human chondrocytes and of the deposited extracellular matrix while supporting their chondrogenic redifferentiation. The presence of CS crosslinking could not induce statistically significant changes in the measured collagen or glycosaminoglycan content, but resulted in an increased construct stiffness. By offering the combined effect of cell/matrix alignment and chondrogenic support, the silk fibroin scaffolds developed with precise fiber orientation in lamellar form represent a suitable substrate for tissue engineering of the annulus fibrosus part of the intervertebral disc.
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Liu J, Lawrence BD, Liu A, Schwab IR, Oliveira LA, Rosenblatt MI. Silk fibroin as a biomaterial substrate for corneal epithelial cell sheet generation. Invest Ophthalmol Vis Sci 2012; 53:4130-8. [PMID: 22661480 DOI: 10.1167/iovs.12-9876] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE To evaluate a silk fibroin (SF) biomaterial as a substrate for corneal epithelial cell proliferation, differentiation, and stratification in vitro compared with denuded human amniotic membrane (AM). METHODS Primary human and rabbit corneal epithelial cells and immortalized human corneal limbal epithelial cells were cultured on the SF and denuded AM, respectively. The biological cell behavior, including the morphology, proliferation, differentiation, and stratification, on the two substrates was compared and analyzed. RESULTS Corneal epithelial cells can adhere and proliferate on the SF and denuded AM with a cobblestone appearance, abundant microvilli on the surface, and wide connection with the adjacent cells. MTT assay showed that cell proliferation on denuded AM was statistically higher than that on SF at 24 and 72 hours after plating (P = 0.001 and 0.0005, respectively). Expression of ΔNp63a and keratin 3/12 was detected in primary cell cultures on the two substrates with no statistical difference. When cultured at the air-liquid interface for 7 days, cells on SF could form a comparable stratified graft with a 2- to 3-cell layering, which compared similarly to AM cultures. CONCLUSIONS SF, a novel biomaterial, could support corneal epithelial cells to proliferate, differentiate, and stratify, retaining the normal characteristic epithelium phenotype. Compared with AM, its unique features, including the transparency, ease of handling, and transfer, and inherent freedom from disease transmission, make it a promising substrate for corneal wound repair and tissue-engineering purposes.
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Affiliation(s)
- Jingbo Liu
- Weill Cornell Medical College, New York, New York, USA
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Abstract
The development of natural biomaterials is not regarded as a new area of science, but has existed for centuries. The use of natural products as a biomaterial is currently undergoing a renaissance in the biomedical field. The major limitations of natural biomaterials are due to the immunogenic response that can occur following implantation and the lot-to-lot variability in molecular structure associated with animal sourcing. The chemical stability and biocompatibility of natural products in the body greatly accounts for their utilization in recent times. The paper succinctly defines biomaterials in terms of natural products and also that natural products as materials in biomedical fields are considerably versatile and promising. The various types of natural products and forms of biomaterials are highlighted. Three main areas of applications of natural products as materials in medicine are described, namely, wound management products, drug delivery systems, and tissue engineering. This paper presents a brief history of natural products as biomaterials, various types of natural biomaterials, properties, demand and economic importance, and the area of application of natural biomaterials in recent times.
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Affiliation(s)
- Oladeji O. Ige
- Department of Materials Science and Engineering, Obafemi Awolowo University, Ile-Ife 220282, Nigeria
| | - Lasisi E. Umoru
- Department of Materials Science and Engineering, Obafemi Awolowo University, Ile-Ife 220282, Nigeria
| | - Sunday Aribo
- Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure 340252, Nigeria
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Acharya C, Kumary TV, Ghosh SK, Kundu SC. Characterization of Fibroin and PEG-Blended Fibroin Matrices for In Vitro Adhesion and Proliferation of Osteoblasts. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 20:543-65. [DOI: 10.1163/156856209x426385] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Chitrangada Acharya
- a Department of Biotechnology, Indian Institute of Technology, Kharagpur 721302, India
| | - T. V. Kumary
- b Bio-Medical Technology Wing, Sree Chitra Tirunal Institute of Medical Sciences, Poojapura, Trivandrum, India
| | - Sudip K. Ghosh
- c Department of Biotechnology, Indian Institute of Technology, Kharagpur 721302, India
| | - S. C. Kundu
- d Department of Biotechnology, Indian Institute of Technology, Kharagpur 721302, India
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Mai-ngam K, Boonkitpattarakul K, Jaipaew J, Mai-ngam B. Evaluation of the Properties of Silk Fibroin Films from the Non-mulberry Silkworm Samia cynthia ricini for Biomaterial Design. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:2001-22. [DOI: 10.1163/092050610x530964] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Katanchalee Mai-ngam
- a National Metal and Materials Technology Center, Thailand Science Park, 114 Paholyothin Road, Klong 1, Klong Luang, Pathumthani 12120, Thailand.
| | - Kanhokthorn Boonkitpattarakul
- b National Metal and Materials Technology Center, Thailand Science Park, 114 Paholyothin Road, Klong 1, Klong Luang, Pathumthani 12120, Thailand
| | - Jirayut Jaipaew
- c National Metal and Materials Technology Center, Thailand Science Park, 114 Paholyothin Road, Klong 1, Klong Luang, Pathumthani 12120, Thailand
| | - Bunpot Mai-ngam
- d National Metal and Materials Technology Center, Thailand Science Park, 114 Paholyothin Road, Klong 1, Klong Luang, Pathumthani 12120, Thailand
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Kundu J, Mohapatra R, Kundu SC. Silk Fibroin/Sodium Carboxymethylcellulose Blended Films for Biotechnological Applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:519-39. [DOI: 10.1163/092050610x487864] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Joydip Kundu
- a Department of Biotechnology, Indian Institute of Technology, Kharagpur-721302, India
| | - Riti Mohapatra
- b Department of Biotechnology, Indian Institute of Technology, Kharagpur-721302, India
| | - S. C. Kundu
- c Department of Biotechnology, Indian Institute of Technology, Kharagpur-721302, India
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Terada D, Yoshikawa C, Hattori S, Teramoto H, Kameda T, Tamada Y, Kobayashi H. Silk nanofibre arranging improves its fibre mat transparency. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2012. [DOI: 10.1680/bbn.11.00004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Kundu SC, Kundu B, Talukdar S, Bano S, Nayak S, Kundu J, Mandal BB, Bhardwaj N, Botlagunta M, Dash BC, Acharya C, Ghosh AK. Nonmulberry silk biopolymers. Biopolymers 2012; 97:455-67. [DOI: 10.1002/bip.22024] [Citation(s) in RCA: 143] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Accepted: 12/21/2011] [Indexed: 11/10/2022]
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Diab T, Pritchard EM, Uhrig BA, Boerckel JD, Kaplan DL, Guldberg RE. A silk hydrogel-based delivery system of bone morphogenetic protein for the treatment of large bone defects. J Mech Behav Biomed Mater 2011; 11:123-31. [PMID: 22658161 DOI: 10.1016/j.jmbbm.2011.11.007] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Revised: 11/10/2011] [Accepted: 11/16/2011] [Indexed: 01/26/2023]
Abstract
The use of tissue grafting for the repair of large bone defects has numerous limitations including donor site morbidity and the risk of disease transmission. These limitations have prompted research efforts to investigate the effects of combining biomaterial scaffolds with biochemical cues to augment bone repair. The goal of this study was to use a critically-sized rat femoral segmental defect model to investigate the efficacy of a delivery system consisting of an electrospun polycaprolactone (PCL) nanofiber mesh tube with a silk fibroin hydrogel for local recombinant bone morphogenetic protein 2 (BMP-2) delivery. Bilateral 8 mm segmental femoral defects were formed in 13-week-old Sprague Dawley rats. Perforated electrospun PCL nanofiber mesh tubes were fitted into the adjacent native bone such that the lumen of the tubes contained the defect (Kolambkar et al., 2011b). Silk hydrogels with or without BMP-2 were injected into the defect. Bone regeneration was longitudinally assessed using 2D X-ray radiography and 3D microcomputed topography (μCT). Following sacrifice at 12 weeks after surgery, the extracted femurs were either subjected to biomechanical testing or assigned for histology. The results demonstrated that silk was an effective carrier for BMP-2. Compared to the delivery system without BMP-2, the delivery system that contained BMP-2 resulted in more bone formation (p<0.05) at 4, 8, 12 weeks after surgery. Biomechanical properties were also significantly improved in the presence of BMP-2 (p<0.05) and were comparable to age-matched intact femurs. Histological evaluation of the defect region indicated that the silk hydrogel has been completely degraded by the end of the study. Based on these results, we conclude that a BMP-2 delivery system consisting of an electrospun PCL nanofiber mesh tube with a silk hydrogel presents an effective strategy for functional repair of large bone defects.
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Affiliation(s)
- Tamim Diab
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332-0363, USA.
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Nogueira GM, de Moraes MA, Rodas ACD, Higa OZ, Beppu MM. Hydrogels from silk fibroin metastable solution: Formation and characterization from a biomaterial perspective. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2011. [DOI: 10.1016/j.msec.2011.02.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Engineered silk fibroin protein 3D matrices for in vitro tumor model. Biomaterials 2010; 32:2149-59. [PMID: 21167597 DOI: 10.1016/j.biomaterials.2010.11.052] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Accepted: 11/19/2010] [Indexed: 01/03/2023]
Abstract
3D in vitro model systems that are able to mimic the in vivo microenvironment are now highly sought after in cancer research. Antheraea mylitta silk fibroin protein matrices were investigated as potential biomaterial for in vitro tumor modeling. We compared the characteristics of MDA-MB-231 cells on A. mylitta, Bombyx mori silk matrices, Matrigel, and tissue culture plates. The attachment and morphology of the MDA-MB-231 cell line on A. mylitta silk matrices was found to be better than on B. mori matrices and comparable to Matrigel and tissue culture plates. The cells grown in all 3D cultures showed more MMP-9 activity, indicating a more invasive potential. In comparison to B. mori fibroin, A. mylitta fibroin not only provided better cell adhesion, but also improved cell viability and proliferation. Yield coefficient of glucose consumed to lactate produced by cells on 3D A. mylitta fibroin was found to be similar to that of cancer cells in vivo. LNCaP prostate cancer cells were also cultured on 3D A. mylitta fibroin and they grew as clumps in long term culture. The results indicate that A. mylitta fibroin scaffold can provide an easily manipulated microenvironment system to investigate individual factors such as growth factors and signaling peptides, as well as evaluation of anticancer drugs.
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Prasong S, Wilaiwan S, Yaowalak S. Cross-Section Images of Eri (Samia ricini)-Silk Fibers and Their Secondary Structures after Treatment with Different Organic Solvents. ACTA ACUST UNITED AC 2010. [DOI: 10.3923/jbs.2011.46.51] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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65
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Moisenovich MM, Pustovalova OL, Yu Arhipova A, Vasiljeva TV, Sokolova OS, Bogush VG, Debabov VG, Sevastianov VI, Kirpichnikov MP, Agapov II. In vitro and in vivo biocompatibility studies of a recombinant analogue of spidroin 1 scaffolds. J Biomed Mater Res A 2010; 96:125-31. [DOI: 10.1002/jbm.a.32968] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Accepted: 09/01/2010] [Indexed: 12/22/2022]
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Reddy N, Yang Y. Morphology and tensile properties of silk fibers produced by uncommon Saturniidae. Int J Biol Macromol 2010; 46:419-24. [DOI: 10.1016/j.ijbiomac.2010.02.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2009] [Revised: 02/25/2010] [Accepted: 02/26/2010] [Indexed: 10/19/2022]
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68
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Mansur HS, de S. Costa E, Mansur AA, Barbosa-Stancioli EF. Cytocompatibility evaluation in cell-culture systems of chemically crosslinked chitosan/PVA hydrogels. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2008.12.012] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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69
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Biodegradation of silk biomaterials. Int J Mol Sci 2009; 10:1514-1524. [PMID: 19468322 PMCID: PMC2680630 DOI: 10.3390/ijms10041514] [Citation(s) in RCA: 387] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2009] [Revised: 03/05/2009] [Accepted: 03/09/2009] [Indexed: 01/20/2023] Open
Abstract
Silk fibroin from the silkworm, Bombyx mori, has excellent properties such as biocompatibility, biodegradation, non-toxicity, adsorption properties, etc. As a kind of ideal biomaterial, silk fibroin has been widely used since it was first utilized for sutures a long time ago. The degradation behavior of silk biomaterials is obviously important for medical applications. This article will focus on silk-based biomaterials and review the degradation behaviors of silk materials.
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70
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Murphy AR, Kaplan DL. Biomedical applications of chemically-modified silk fibroin. ACTA ACUST UNITED AC 2009; 19:6443-6450. [PMID: 20161439 DOI: 10.1039/b905802h] [Citation(s) in RCA: 302] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Silk proteins belong to a class of unique, high molecular weight, block copolymer-like proteins that have found widespread use in biomaterials and regenerative medicine. The useful features of these proteins, including self-assembly, robust mechanical properties, biocompatibility and biodegradability can be enhanced through a variety of chemical modifications. These modifications provide chemical handles for the attachment of growth factors, cell binding domains and other polymers to silk, expanding the range of cell and tissue engineering applications attainable. This review focuses on the chemical reactions that have been used to modify the amino acids in silk proteins, and describes their utility in biomedical applications.
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Affiliation(s)
- Amanda R Murphy
- Department of Biomedical Engineering, 4 Colby Street, Tufts University, Medford, MA 02155.
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71
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The effect of lactose-conjugated silk biomaterials on the development of fibrogenic fibroblasts. Biomaterials 2008; 29:4665-75. [DOI: 10.1016/j.biomaterials.2008.08.033] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2008] [Accepted: 08/20/2008] [Indexed: 11/19/2022]
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