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Wu H, Shang Y, Sun W, Ouyang X, Zhou W, Lu J, Yang S, Wei W, Yao X, Wang X, Zhang X, Chen Y, He Q, Yang Z, Ouyang H. Seamless and early gap healing of osteochondral defects by autologous mosaicplasty combined with bioactive supramolecular nanofiber-enabled gelatin methacryloyl (BSN-GelMA) hydrogel. Bioact Mater 2023; 19:88-102. [PMID: 35441114 PMCID: PMC9005961 DOI: 10.1016/j.bioactmat.2022.03.038] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/04/2022] [Accepted: 03/25/2022] [Indexed: 12/02/2022] Open
Abstract
Autologous mosaicplasty is a common approach used to treat osteochondral defects in clinical practice. Gap integration between host and transplanted plugs requires bone tissue reservation and hyaline cartilage regeneration without uneven surface, graft necrosis and sclerosis. However, poor gap integration is a serious concern, which eventually leads to deterioration of joint function. To deal with such complications, this study has developed a strategy to effectively enhance integration of the gap region following mosaicplasty by applying injectable bioactive supramolecular nanofiber-enabled gelatin methacryloyl (GelMA) hydrogel (BSN-GelMA). A rabbit osteochondral defect model demonstrated that BSN-GelMA achieved seamless osteochondral healing in the gap region between plugs of osteochondral defects following mosaicplasty, as early as six weeks. Moreover, the International Cartilage Repair Society score, histology score, glycosaminoglycan content, subchondral bone volume, and collagen II expression were observed to be the highest in the gap region of BSN-GelMA treated group. This improved outcome was due to bio-interactive materials, which acted as tissue fillers to bridge the gap, prevent cartilage degeneration, and promote graft survival and migration of bone marrow mesenchymal stem cells by releasing bioactive supramolecular nanofibers from the GelMA hydrogel. This study provides a powerful and applicable approach to improve gap integration after autologous mosaicplasty. It is also a promising off-the-shelf bioactive material for cell-free in situ tissue regeneration. A novel strategy that can effectively enhance post-mosaicplasty interstitial integration was developed. The bioactive supramolecular nanofibers (BSN) exhibited comparable bioactivity to insulin-like growth factor-1 (IGF-1). The BSN-GelMA hydrogel is a promising off-the-shelf bioactive material for cell-free in situ tissue regeneration.
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Morotomi T, Washio A, Kitamura C. Current and future options for dental pulp therapy. JAPANESE DENTAL SCIENCE REVIEW 2018; 55:5-11. [PMID: 30733839 PMCID: PMC6354285 DOI: 10.1016/j.jdsr.2018.09.001] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 07/13/2018] [Accepted: 09/10/2018] [Indexed: 01/01/2023] Open
Abstract
Dental pulp is a connective tissue and has functions that include initiative, formative, protective, nutritive, and reparative activities. However, it has relatively low compliance, because it is enclosed in hard tissue. Its low compliance against damage, such as dental caries, results in the frequent removal of dental pulp during endodontic therapy. Loss of dental pulp frequently leads to fragility of the tooth, and eventually, a deterioration in the patient’s quality of life. With the development of biomaterials such as bioceramics and advances in pulp biology such as the identification of dental pulp stem cells, novel ideas for the preservation of dental pulp, the regenerative therapy of dental pulp, and new biomaterials for direct pulp capping have now been proposed. Therapies for dental pulp are classified into three categories; direct pulp capping, vital pulp amputation, and treatment for non-vital teeth. In this review, we discuss current and future treatment options in these therapies.
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Affiliation(s)
- Takahiko Morotomi
- Division of Endodontics and Restorative Dentistry, Department of Science of Oral Functions, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu 803-8580, Japan
| | - Ayako Washio
- Division of Endodontics and Restorative Dentistry, Department of Science of Oral Functions, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu 803-8580, Japan
| | - Chiaki Kitamura
- Division of Endodontics and Restorative Dentistry, Department of Science of Oral Functions, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu 803-8580, Japan
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Smyth NA, Ross KA, Haleem AM, Hannon CP, Murawski CD, Do HT, Kennedy JG. Platelet-Rich Plasma and Hyaluronic Acid Are Not Synergistic When Used as Biological Adjuncts with Autologous Osteochondral Transplantation. Cartilage 2018; 9:321-328. [PMID: 29156980 PMCID: PMC6042028 DOI: 10.1177/1947603517690022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
UNLABELLED Introduction Autologous osteochondral transplantation (AOT) is a treatment for osteochondral lesions with known concerns, including histological degradation of the graft and poor cartilage integration. Platelet-rich plasma (PRP) and hyaluronic acid (HA) have been described has having the potential to improve results. The aim of this study was to evaluate the effect of PRP and HA on AOT in a rabbit model. Methods Thirty-six rabbits underwent bilateral knee AOT treated with either the biological adjunct (PRP, n = 12; HA, n = 12; PRP + HA, n = 12) or saline (control). PRP and HA were administered as an intra-articular injection. The rabbits were euthanized at 3, 6, or 12 weeks postoperatively. The graft sections were assessed using the modified International Cartilage Repair Society (ICRS) scoring system. The results from the PRP alone group is from previously published data. Results The mean modified ICRS histological score for the PRP-treated group was higher than its control ( P = 0.002). The mean modified ICRS histological score for the HA-treated group showed no difference compared with its control ( P = 0.142). The mean modified ICRS histological score for the PRP + HA-treated group was higher than its control ( P = 0.006). There was no difference between the mean modified ICRS scores of the PRP- and the PRP + HA-treated grafts ( P = 0.445). Conclusion PRP may decrease graft degradation and improve chondral integration in an animal model. In this model, the addition of HA was not synergistic for the parameters assessed. LEVEL OF EVIDENCE Basic science, Level V. CLINICAL RELEVANCE PRP can be used as an adjunct to AOT, which may decrease graft degeneration and improve clinical outcomes. HA may not influence AOT.
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Affiliation(s)
- Niall A. Smyth
- University of Miami Miller School of Medicine, Miami, FL, USA,Niall A. Smyth, University of Miami Miller School of Medicine, 1611 NW 12th Avenue, Miami, FL 33136, USA.
| | - Keir A. Ross
- University of Maryland School of Medicine, New York, NY, USA
| | - Amgad M. Haleem
- University of Oklahoma School of Medicine, New York, NY, USA
| | | | | | - Huong T. Do
- Hospital for Special Surgery, New York, NY, USA
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Cao F, Qi J, Song H, Xie D, Zhou L, Han Y, Li H, Wu Q, Dong J, Zhang Y. Tsmu solution improves rabbit osteochondral allograft preservation and transplantation outcome. Cell Tissue Bank 2018; 19:549-558. [PMID: 29876883 DOI: 10.1007/s10561-018-9703-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 05/25/2018] [Indexed: 12/20/2022]
Abstract
To compare the effects of Tsmu solution with vitrification on chondrocyte viability and examine histological and biomechanical properties of osteochondral allografts (OCAs) after storage, OCAs from femoral condyles of New Zealand rabbits were harvested, stored for 35 days in Tsmu solution or by in vitro vitrification, and subjected to in vivo and in vitro assays. Stored OCAs were transplanted into knee femoral condyle cartilage defects in recipient rabbits. Chondrocyte viability and histological changes of cartilage grafts were assessed in vitro. Gross assessment, chondrocyte viability, histological assessment, OCA biomechanics, and immunological markers were evaluated in vivo 6 months after transplantation. Fresh OCAs served as in vitro and in vivo controls. Chondrocyte viability and scores for cartilage surface and histological quantitative assessment were superior for Tsmu solution compared with vitrification, but inferior compared with fresh OCAs in vitro and in vivo. With the exception of interleukin 6 content, biomechanical features of samples stored in Tsmu solution were superior to vitrification, and inferior to fresh OCAs in vivo. Thus, Tsmu solution provided suitable storage that improved chondrocyte viability, intact OCA cartilage matrix architecture, and transplantation outcomes.
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Affiliation(s)
- Famin Cao
- Institute of Sports Medicine, Taishan Medical University, 619 Great Wall Road, Tai'an, 271016, Shandong, China
| | - Jianhong Qi
- Institute of Sports Medicine, Taishan Medical University, 619 Great Wall Road, Tai'an, 271016, Shandong, China. .,Institute of Sports Medicine, Taishan Medical University, 619 Changcheng Road, Tai'an, 271016, Shandong, China.
| | - Hongqiang Song
- Institute of Sports Medicine, Taishan Medical University, 619 Great Wall Road, Tai'an, 271016, Shandong, China
| | - Di Xie
- Institute of Sports Medicine, Taishan Medical University, 619 Great Wall Road, Tai'an, 271016, Shandong, China
| | - Lu Zhou
- Institute of Sports Medicine, Taishan Medical University, 619 Great Wall Road, Tai'an, 271016, Shandong, China
| | - Yunning Han
- Institute of Sports Medicine, Taishan Medical University, 619 Great Wall Road, Tai'an, 271016, Shandong, China
| | - Hao Li
- Institute of Sports Medicine, Taishan Medical University, 619 Great Wall Road, Tai'an, 271016, Shandong, China
| | - Qi Wu
- Institute of Sports Medicine, Taishan Medical University, 619 Great Wall Road, Tai'an, 271016, Shandong, China
| | - Jun Dong
- Institute of Sports Medicine, Taishan Medical University, 619 Great Wall Road, Tai'an, 271016, Shandong, China
| | - Yanming Zhang
- Institute of Sports Medicine, Taishan Medical University, 619 Great Wall Road, Tai'an, 271016, Shandong, China
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Arruda MFD, Cassettari LL, Neves LMSD, Oliveira OMMDF, Marcolino AM. Ascorbic acid iontophoresis for chondral gain in rats with arthritis. ACTA ORTOPEDICA BRASILEIRA 2014; 22:202-5. [PMID: 25246850 PMCID: PMC4167044 DOI: 10.1590/1413-78522014220400769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Accepted: 11/27/2013] [Indexed: 11/22/2022]
Abstract
OBJECTIVES: To examine the cellularity and thickness of the articular cartilage of the femur in rats with arthritis after treatment with iontophoresis. METHODS: To evaluate these objectives, a histological analysis was performed on hematoxylin and eosin, where cellularity and cartilage thickness were observed and evaluated qualitatively and quantitatively by manual counting by 700.09µm² area. RESULTS: The group treated with IAA had normal cellularity (40.1 cells/μm2) and maintenance of non-calcified cartilage (75.5μm), suggesting normal thickness. The non-treated group C+, on the other hand, had a lower mean number of chondrocytes (13.0μm2) (P <0.05) and, when the cartilage thickness was compared, it showed higher average thickness of calcified cartilage (104.8 mm) and lower mean of non-calcified cartilage (53.3μm) CONCLUSION: The use of iontophoresis with L-ascorbic acid by continuous electric current contributed to a quantitative gain of chondrocytes and improved the thickness distribution of calcified and non-calcified cartilage. Level of Evidence III, Case Control Study.
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Seo SJ, Mahapatra C, Singh RK, Knowles JC, Kim HW. Strategies for osteochondral repair: Focus on scaffolds. J Tissue Eng 2014; 5:2041731414541850. [PMID: 25343021 PMCID: PMC4206689 DOI: 10.1177/2041731414541850] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2014] [Accepted: 06/06/2014] [Indexed: 01/27/2023] Open
Abstract
Interest in osteochondral repair has been increasing with the growing number of sports-related injuries, accident traumas, and congenital diseases and disorders. Although therapeutic interventions are entering an advanced stage, current surgical procedures are still in their infancy. Unlike other tissues, the osteochondral zone shows a high level of gradient and interfacial tissue organization between bone and cartilage, and thus has unique characteristics related to the ability to resist mechanical compression and restoration. Among the possible therapies, tissue engineering of osteochondral tissues has shown considerable promise where multiple approaches of utilizing cells, scaffolds, and signaling molecules have been pursued. This review focuses particularly on the importance of scaffold design and its role in the success of osteochondral tissue engineering. Biphasic and gradient composition with proper pore configurations are the basic design consideration for scaffolds. Surface modification is an essential technique to improve the scaffold function associated with cell regulation or delivery of signaling molecules. The use of functional scaffolds with a controllable delivery strategy of multiple signaling molecules is also considered a promising therapeutic approach. In this review, we updated the recent advances in scaffolding approaches for osteochondral tissue engineering.
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Affiliation(s)
- Seog-Jin Seo
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea ; Department of Nanobiomedical Science, BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Republic of Korea
| | - Chinmaya Mahapatra
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea ; Department of Nanobiomedical Science, BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Republic of Korea
| | - Rajendra K Singh
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea ; Department of Nanobiomedical Science, BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Republic of Korea
| | - Jonathan C Knowles
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, UK
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea ; Department of Nanobiomedical Science, BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Republic of Korea ; Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, Republic of Korea
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Filardo G, Kon E, Perdisa F, Balboni F, Marcacci M. Autologous osteochondral transplantation for the treatment of knee lesions: results and limitations at two years' follow-up. INTERNATIONAL ORTHOPAEDICS 2014; 38:1905-12. [PMID: 24663398 DOI: 10.1007/s00264-014-2322-1] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 03/07/2014] [Indexed: 11/29/2022]
Abstract
PURPOSE Focal chondral and osteochondral knee lesions are a common condition, particularly hard to treat, and often involve young active patients with high expectations in terms of symptomatic relief and return to sports. Autologous osteochondral transplantation allows the defect area to be restored with hyaline cartilage. The aim of this study is to analyse whether it represents a safe and effective treatment option for small-medium-sized knee chondral and osteochondral lesions in a young and active population. METHODS Thirty-one patients (18 men, 13 women; mean age 32 ± ten; mean BMI 24 ± 3) affected by focal knee chondral and osteochondral lesions were enrolled and treated with autologous osteochondral transplantation. They were prospectively followed-up for 24 months with the IKDC-subjective, IKDC-objective, and Tegner scores. Adverse events and failures were also reported, as well as the Bandi score to detect symptoms from the donor area. RESULTS A significant increase was reported in all the clinical scores adopted. In particular, the IKDC-subjective score increased from a basal value of 40.3 ± 16.2 to 62.6 ± 18.0 at the 12 months' evaluation, with a further significant increase up to 71.6 ± 20.5 at the final 24 months' follow-up (p < 0.0005). A positive trend was also found by analysing the IKDC-objective score. The Tegner score revealed a significant improvement from a basal value of 2.2 ± 1.8 to 3.7 ± 1.5 at the final evaluation (p = 0.003), although it was not possible to regain the same pre-injury sports activity level of 5.0 ± 2.2. Two failures were reported. The Bandi score revealed patients complaining of mild and moderate symptoms, not correlated to the lesion size. The presence of symptoms ascribable to the donor area was significantly correlated with a lower clinical outcome. CONCLUSIONS Autologous osteochondral transplantation proved to be, at short-term evaluation, a suitable option to treat small-medium sized chondral and osteochondral lesions. However, clinical improvement is slow and a significant percentage of patients develop symptoms attributable to the donor area, thus reducing the overall benefit of this procedure.
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Affiliation(s)
- Giuseppe Filardo
- Nano-Biotechnology Laboratory, II Clinic, Rizzoli Orthopaedic Institute, Via di Barbiano 1/10, 40136, Bologna, Italy
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Tanoue R, Ohta K, Kusukawa J, Nakamura KI. The Effect of the Microenvironment Created by a Titanium Mesh Cage on Subcutaneous Experimental Bone Formation and Inhibition of Absorption. Cells Tissues Organs 2012; 196:221-30. [DOI: 10.1159/000334409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2011] [Indexed: 01/17/2023] Open
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A novel injectable hydrogel in combination with a surgical sealant in a rat knee osteochondral defect model. Knee Surg Sports Traumatol Arthrosc 2009; 17:1326-31. [PMID: 19633829 DOI: 10.1007/s00167-009-0881-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2009] [Accepted: 07/08/2009] [Indexed: 10/20/2022]
Abstract
Osteochondral defects are frequent, painful, debilitating and expensive to treat, often resulting in poor results. The goal of the present study was to synthesize and characterize a novel biocompatible and biodegradable hydrogel comprised of poly(ethylene glycol), gelatin, and genipin, and examine the hydrogel as an injectable biomaterial in combination with a cyanoacrylate-based surgical sealant for cartilage repair. An osteochondral knee defect was generated in 24 rats, then the hydrogel, with or without a surgical sealant, was injected into the defect and followed for 14 days. The results demonstrated that the hydrogel is biocompatible and biodegradable, and that the cyanoacrylate-based surgical sealant is a relatively safe option for maintaining the hydrogel in the defect. This is the first study describing a cyanoacrylate-based surgical sealant in combination with a polymer hydrogel for cartilage repair.
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Ishimatsu H, Kitamura C, Morotomi T, Tabata Y, Nishihara T, Chen KK, Terashita M. Formation of Dentinal Bridge on Surface of Regenerated Dental Pulp in Dentin Defects by Controlled Release of Fibroblast Growth Factor–2 From Gelatin Hydrogels. J Endod 2009; 35:858-65. [DOI: 10.1016/j.joen.2009.03.049] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2009] [Revised: 03/22/2009] [Accepted: 03/28/2009] [Indexed: 01/09/2023]
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