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Gao W, Bao J, Zhang Y, He D, Zhang L, Zhang J, Pan H, Wang D. Injectable kaempferol-loaded fibrin glue regulates the metabolic balance and inhibits inflammation in intervertebral disc degeneration. Sci Rep 2023; 13:20001. [PMID: 37968507 PMCID: PMC10651831 DOI: 10.1038/s41598-023-47375-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 11/13/2023] [Indexed: 11/17/2023] Open
Abstract
To construct an injectable fibrin glue system loaded with kaempferol (FG@F) to improve the bioavailability of kaempferol and observe its efficacy in the treatment of intervertebral disc degeneration (IVDD). Kaempferol-loaded fibrin glue was first synthesized in advance. Subsequently, the materials were characterized by various experimental methods. Then, nucleus pulposus cells (NPCs) were stimulated with lipopolysaccharide (LPS) to establish a degenerative cell model, and the corresponding intervention treatment was conducted to observe the effect in vitro. Finally, the tail disc of rats was punctured to establish a model of IVDD, and the therapeutic effect of the material in vivo was observed after intervertebral disc injection. The FG@F system has good injectability, sustained release and biocompatibility. This treatment reduced the inflammatory response associated with IVDD and regulated matrix synthesis and degradation. Animal experimental results showed that the FG@F system can effectively improve needle puncture-induced IVDD in rats. The FG@F system has better efficacy than kaempferol or FG alone due to its slow release and mechanical properties. The drug delivery and biotherapy platform based on this functional system might also serve as an alternative therapy for IVDD.
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Affiliation(s)
- Wenshuo Gao
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang, People's Republic of China
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Hebei North University, Zhangjiakou, 075000, Hebei, People's Republic of China
| | - Jianhang Bao
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang, People's Republic of China
- Department of Orthopaedics, Yiwu Central Hospital, Yiwu, 322000, Zhejiang, People's Republic of China
| | - Yujun Zhang
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang, People's Republic of China
| | - Du He
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang, People's Republic of China
| | - Liangping Zhang
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang, People's Republic of China
| | - Jun Zhang
- Department of General Surgery, Institute of Orthopaedics and Traumatology, Hangzhou Dingqiao Hospital, Huanding Road NO 1630, Hangzhou, 310021, Zhejiang, People's Republic of China
| | - Hao Pan
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang, People's Republic of China.
- Department of Orthopaedics, Hangzhou Dingqiao Hospital, Huanding Road NO 1630, Hangzhou, 310021, Zhejiang, People's Republic of China.
- Institute of Orthopaedics and Traumatology, Hangzhou Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical University, Tiyuchang Road NO 453, Hangzhou, 310007, Zhejiang, People's Republic of China.
| | - Dong Wang
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang, People's Republic of China.
- Department of Orthopaedics, Hangzhou Dingqiao Hospital, Huanding Road NO 1630, Hangzhou, 310021, Zhejiang, People's Republic of China.
- Institute of Orthopaedics and Traumatology, Hangzhou Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical University, Tiyuchang Road NO 453, Hangzhou, 310007, Zhejiang, People's Republic of China.
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Bao J, Gao W, Zhang W, Wang D, Pan H. Fibrin glue delivery system containing rhein ameliorates intervertebral disc degeneration by anti-inflammatory efficacy. J Orthop Surg Res 2023; 18:485. [PMID: 37415165 DOI: 10.1186/s13018-023-03961-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/27/2023] [Indexed: 07/08/2023] Open
Abstract
PURPOSE To construct an injectable, sustained-release fibrin gel containing rhein to solve the problem of low bioavailability of rhein, and observe its efficacy in the treatment of intervertebral disc degeneration. METHODS The fibrin gel containing rhein was first synthesized in advance. Subsequently, the materials were characterized by various experimental methods. Secondly, the degenerative cell model was constructed by stimulating nucleus pulposus cells with lipopolysaccharide (LPS), and the corresponding intervention treatment was carried out to observe the effect in vitro. Finally, the rat tail intervertebral disc was acupunctured by needles to establish the intervertebral disc degeneration model, and the effect of the material was observed through intradiscal injection. RESULTS The fibrin glue containing rhein (rhein@FG) showed good injectability, sustained release and biocompatibility. Rhein@FG can improve the LPS-induced inflammatory microenvironment, regulate ECM metabolic disorders of nucleus pulposus cells and aggregation of the NLRP3 inflammasome in vitro, and inhibit cell pyroptosis. Furthermore, in vivo experiments, rhein@FG effectively prevented needle puncture-induced intervertebral disc degeneration in rats. CONCLUSIONS Rhein@FG has better efficacy than rhein or FG alone due to its slow release and mechanical properties, which can be used as a potential replacement therapy for intervertebral disc degeneration.
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Affiliation(s)
- Jianhang Bao
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), No. 453 Tiyuchang Road, Xihu District, Hangzhou, 310007, Zhejiang Province, People's Republic of China
| | - Wenshuo Gao
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), No. 453 Tiyuchang Road, Xihu District, Hangzhou, 310007, Zhejiang Province, People's Republic of China
| | - Wei Zhang
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), No. 453 Tiyuchang Road, Xihu District, Hangzhou, 310007, Zhejiang Province, People's Republic of China
| | - Dong Wang
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), No. 453 Tiyuchang Road, Xihu District, Hangzhou, 310007, Zhejiang Province, People's Republic of China.
- Department of Orthopaedics, Hangzhou Dingqiao Hospital, No. 1630 Huanding Road, Shangcheng District, Hangzhou, 310021, Zhejiang Province, People's Republic of China.
- Institute of Orthopaedics and Traumatology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, No. 453 Tiyuchang Road, Xihu District, Hangzhou, 310007, People's Republic of China.
| | - Hao Pan
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), No. 453 Tiyuchang Road, Xihu District, Hangzhou, 310007, Zhejiang Province, People's Republic of China.
- Institute of Orthopaedics and Traumatology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, No. 453 Tiyuchang Road, Xihu District, Hangzhou, 310007, People's Republic of China.
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Herrera Millar VR, Canciani B, Mangiavini L, Filipe JFS, Aidos L, Pallaoro M, Peretti GM, Pocar P, Modina SC, Di Giancamillo A. Endostatin in 3D Fibrin Hydrogel Scaffolds Promotes Chondrogenic Differentiation in Swine Neonatal Meniscal Cells. Biomedicines 2022; 10:biomedicines10102415. [PMID: 36289678 PMCID: PMC9598439 DOI: 10.3390/biomedicines10102415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/16/2022] [Accepted: 09/22/2022] [Indexed: 11/16/2022] Open
Abstract
The success of cell-based approaches for the treatment of cartilage or fibro-cartilaginous tissue defects requires an optimal cell source with chondrogenic differentiation ability that maintains its differentiated properties and stability following implantation. For this purpose, the aim of this study was to evaluate the use of endostatin (COL18A1), an anti-angiogenic factor, which is physiologically involved in cell differentiation during meniscus development. Swine neonatal meniscal cells not yet subjected to mechanical stimuli were extracted, cultured in fibrin hydrogel scaffolds, and treated at two different time points (T1 = 9 days and T2 = 21 days) with different concentrations of COL18A1 (10 ng/mL; 100 ng/mL; 200 ng/mL). At the end of the treatments, the scaffolds were examined through biochemical, molecular, and histochemical analyses. The results showed that the higher concentration of COL18A1 promotes a fibro-chondrogenic phenotype and improves cellularity index (DNA content, p < 0.001) and cell efficiency (GAGs/DNA ratio, p < 0.01) after 21 days. These data are supported by the molecular analysis of collagen type I (COL1A1, a marker of fibrous-like tissue, p < 0.001), collagen type II (COL2A1, a marker of cartilaginous-like tissue, p < 0.001) and SRY-Box Transcription Factor 9 (SOX9, an early marker of chondrogenicity, p < 0.001), as well as by histological analysis (Safranin-O staining), laying the foundations for future studies evaluating the involvement of 3D endostatin hydrogel scaffolds in the differentiation of avascular tissues.
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Affiliation(s)
| | - Barbara Canciani
- IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi, 4, 20161 Milano, Italy
| | - Laura Mangiavini
- Department of Biomedical Sciences for Health, University of Milan, Via Mangiagalli 31, 20133 Milan, Italy
- IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi, 4, 20161 Milano, Italy
| | - Joel Fernando Soares Filipe
- Department of Veterinary Medicine and Animal Sciences (DIVAS), University of Milan, Via dell’Università 6, 26900 Lodi, Italy
| | - Lucia Aidos
- Department of Biomedical Sciences for Health, University of Milan, Via Mangiagalli 31, 20133 Milan, Italy
| | - Margherita Pallaoro
- Department of Veterinary Medicine and Animal Sciences (DIVAS), University of Milan, Via dell’Università 6, 26900 Lodi, Italy
| | - Giuseppe Maria Peretti
- Department of Biomedical Sciences for Health, University of Milan, Via Mangiagalli 31, 20133 Milan, Italy
- IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi, 4, 20161 Milano, Italy
| | - Paola Pocar
- Department of Veterinary Medicine and Animal Sciences (DIVAS), University of Milan, Via dell’Università 6, 26900 Lodi, Italy
| | - Silvia Clotilde Modina
- Department of Veterinary Medicine and Animal Sciences (DIVAS), University of Milan, Via dell’Università 6, 26900 Lodi, Italy
| | - Alessia Di Giancamillo
- Department of Biomedical Sciences for Health, University of Milan, Via Mangiagalli 31, 20133 Milan, Italy
- Correspondence:
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Li M, Pan G, Zhang H, Guo B. Hydrogel adhesives for generalized wound treatment: Design and applications. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20210916] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Meng Li
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an China
| | - Guoying Pan
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an China
| | - Hualei Zhang
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an China
| | - Baolin Guo
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an China
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research College of Stomatology, Xi'an Jiaotong University Xi'an China
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Ebhodaghe SO. Natural Polymeric Scaffolds for Tissue Engineering Applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 32:2144-2194. [PMID: 34328068 DOI: 10.1080/09205063.2021.1958185] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Natural polymeric scaffolds can be used for tissue engineering applications such as cell delivery and cell-free supporting of native tissues. This is because of their desirable properties such as; high biocompatibility, tunable mechanical strength and conductivity, large surface area, porous- and extracellular matrix (ECM)-mimicked structures. Specifically, their less toxicity and biocompatibility makes them suitable for several tissue engineering applications. For these reasons, several biopolymeric scaffolds are currently being explored for numerous tissue engineering applications. To date, research on the nature, chemistry, and properties of nanocomposite biopolymers are been reported, while the need for a comprehensive research note on more tissue engineering application of these biopolymers remains. As a result, this present study comprehensively reviews the development of common natural biopolymers as scaffolds for tissue engineering applications such as cartilage tissue engineering, cornea repairs, osteochondral defect repairs, and nerve regeneration. More so, the implications of research findings for further studies are presented, while the impact of research advances on future research and other specific recommendations are added as well.
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Mondadori C, Palombella S, Salehi S, Talò G, Visone R, Rasponi M, Redaelli A, Sansone V, Moretti M, Lopa S. Recapitulating monocyte extravasation to the synovium in an organotypic microfluidic model of the articular joint. Biofabrication 2021; 13. [PMID: 34139683 DOI: 10.1088/1758-5090/ac0c5e] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 06/17/2021] [Indexed: 02/07/2023]
Abstract
The synovium of osteoarthritis (OA) patients can be characterized by an abnormal accumulation of macrophages originating from extravasated monocytes. Since targeting monocyte extravasation may represent a promising therapeutic strategy, our aim was to develop an organotypic microfluidic model recapitulating this process. Synovium and cartilage were modeled by hydrogel-embedded OA synovial fibroblasts and articular chondrocytes separated by a synovial fluid channel. The synovium compartment included a perfusable endothelialized channel dedicated to monocyte injection. Monocyte extravasation in response to chemokines and OA synovial fluid was quantified. The efficacy of chemokine receptor antagonists, RS-504393 (CCR2 antagonist) and Cenicriviroc (CCR2/CCR5 antagonist) in inhibiting extravasation was tested pre-incubating monocytes with the antagonists before injection. After designing and fabricating the chip, culture conditions were optimized to achieve an organotypic model including synovial fibroblasts, articular chondrocytes, and a continuous endothelial monolayer expressing intercellular adhesion molecule-1 and vascular cell adhesion molecule-1. A significantly higher number of monocytes extravasated in response to the chemokine mix (p< 0.01) and OA synovial fluid (p< 0.01), compared to a control condition. In both cases, endothelium pre-activation enhanced monocyte extravasation. The simultaneous blocking of CCR2 and CCR5 proved to be more effective (p< 0.001) in inhibiting monocyte extravasation in response to OA synovial fluid than blocking of CCR2 only (p< 0.01). The study of extravasation in the model provided direct evidence that OA synovial fluid induces monocytes to cross the endothelium and invade the synovial compartment. The model can be exploited either to test molecules antagonizing this process or to investigate the effect of extravasated monocytes on synovium and cartilage cells.
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Affiliation(s)
- Carlotta Mondadori
- IRCCS Istituto Ortopedico Galeazzi, Cell and Tissue Engineering Laboratory, 20161 Milan, Italy
| | - Silvia Palombella
- IRCCS Istituto Ortopedico Galeazzi, Cell and Tissue Engineering Laboratory, 20161 Milan, Italy
| | - Shima Salehi
- IRCCS Istituto Ortopedico Galeazzi, Cell and Tissue Engineering Laboratory, 20161 Milan, Italy
| | - Giuseppe Talò
- IRCCS Istituto Ortopedico Galeazzi, Cell and Tissue Engineering Laboratory, 20161 Milan, Italy
| | - Roberta Visone
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, 20133 Milan, Italy
| | - Marco Rasponi
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, 20133 Milan, Italy
| | - Alberto Redaelli
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, 20133 Milan, Italy
| | | | - Matteo Moretti
- IRCCS Istituto Ortopedico Galeazzi, Cell and Tissue Engineering Laboratory, 20161 Milan, Italy.,Regenerative Medicine Technologies Lab, Ente Ospedaliero Cantonale, 6900 Lugano, Switzerland.,Euler Institute, Faculty of Biomedical Sciences, Università della Svizzera Italiana, 6900 Lugano, Switzerland
| | - Silvia Lopa
- IRCCS Istituto Ortopedico Galeazzi, Cell and Tissue Engineering Laboratory, 20161 Milan, Italy
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Improving In Vitro Cartilage Generation by Co-Culturing Adipose-Derived Stem Cells and Chondrocytes on an Allograft Adipose Matrix Framework. Plast Reconstr Surg 2021; 147:87-99. [PMID: 33002984 DOI: 10.1097/prs.0000000000007511] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Microtia is an inherited condition that results in varying degrees of external ear deformities; the most extreme form is anotia. Effective surgical reconstruction techniques have been developed. However, these usually require multistage procedures and have other inherent disadvantages. Tissue engineering technologies offer new approaches in the field of external ear reconstruction. In this setting, chondrocytes are cultured in the laboratory with the aim of creating bioengineered cartilage matrices. However, cartilage engineering has many challenges, including difficulty in culturing sufficient chondrocytes. To overcome these hurdles, the authors propose a novel model of cartilage engineering that involves co-culturing chondrocytes and adipose-derived stem cells on an allograft adipose-derived extracellular matrix scaffold. METHODS Auricular chondrocytes from porcine ear were characterized. Adipose-derived stem cells were isolated and expanded from human lipoaspirate. Then, the auricular chondrocytes were cultured on the allograft adipose matrix either alone or with the adipose-derived stem cells at different ratios and examined histologically. RESULTS Cartilage induction was most prominent when the cells were co-cultured on the allograft adipose matrix at a ratio of 1:9 (auricular chondrocyte-to-adipose-derived stem cell ratio). Furthermore, because of the xenogeneic nature of the experiment, the authors were able to determine that the adipose-derived stem cells contributed to chondrogenesis by means of a paracrine stimulation of the chondrocytes. CONCLUSIONS In this situation, adipose-derived stem cells provide sufficient support to induce the formation of cartilage when the number of auricular chondrocytes available is limited. This novel model of cartilage engineering provides a setting for using the patient's own chondrocytes and adipose tissue to create a customized ear framework that could be further used for surgical reconstruction.
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Watanabe T, Asawa Y, Watanabe M, Okubo R, Nio M, Takato T, Hoshi K, Hikita A. The usefulness of the decellularized matrix from three-dimensional regenerative cartilage as a scaffold material. Regen Ther 2020; 15:312-322. [PMID: 33426234 PMCID: PMC7770429 DOI: 10.1016/j.reth.2020.11.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/30/2020] [Accepted: 11/18/2020] [Indexed: 11/30/2022] Open
Abstract
In cartilage tissue engineering, research on materials for three-dimensional (3D) scaffold has attracted attention. Decellularized matrix can be one of the candidates for the scaffold material. In this study, decellularization of regenerated cartilage was carried out and its effectiveness as a scaffold material was examined. Three-dimensionally-cultured cartilage constructs in the differentiation medium containing IGF-1 produced more cartilage matrix than those in the proliferation medium. Detergent-enzymatic method (DEM) could decellularize 3D-cultured cartilage constructs only by 1 cycle without breaking down the structure of the constructs. In vitro, newly-seeded chondrocytes were infiltrated and engrafted into decellularized constructs in the proliferation medium, and newly formed fibers were observed around the surface where newly-seeded cells were attached. Recellularized constructs could mature similarly as those without decellularization in vivo. The decellularized 3D-cultured matrix from regenerative cartilage is expected to be used as a scaffold material in the future.
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Affiliation(s)
- Tomohiko Watanabe
- Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, 1-1, Seiryomachi, Aoba-ku, Sendai 980-8574, Japan
| | - Yukiyo Asawa
- Department of Cell & Tissue Engineering (Fujisoft), Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan.,Department of Tissue Engineering, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Makoto Watanabe
- Department of Tissue Engineering, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Ryuji Okubo
- Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, 1-1, Seiryomachi, Aoba-ku, Sendai 980-8574, Japan
| | - Masaki Nio
- Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, 1-1, Seiryomachi, Aoba-ku, Sendai 980-8574, Japan
| | - Tsuyoshi Takato
- JR Tokyo General Hospital, Yoyogi 2-1-3, Shibuya-ku, Tokyo 151-8528, Japan
| | - Kazuto Hoshi
- Department of Tissue Engineering, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan.,Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Atsuhiko Hikita
- Department of Cell & Tissue Engineering (Fujisoft), Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan.,Department of Tissue Engineering, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan
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Mikael PE, Golebiowska AA, Kumbar SG, Nukavarapu SP. Evaluation of Autologously Derived Biomaterials and Stem Cells for Bone Tissue Engineering. Tissue Eng Part A 2020; 26:1052-1063. [PMID: 32375566 PMCID: PMC7580602 DOI: 10.1089/ten.tea.2020.0011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 03/16/2020] [Indexed: 11/12/2022] Open
Abstract
Despite progress, clinical translation of tissue engineering (TE) products/technologies is limited. A significant effort is underway to develop biomaterials and cells through a minimally modified process for clinical translation of TE products. Recently, bone marrow aspirate (BMA) was identified as an autologous source of cells for TE applications and is currently being tested in clinical therapies, but the isolation methods need improvement to avoid potential for contamination and increase progenitor cell yield. To address these issues, we reproducibly processed human peripheral blood (PB) and BMA to develop autologously derived biomaterials and cells. We demonstrated PB-derived biomaterial/gel cross-linking and fibrin gel formation with varied gelation times as well as biocompatibility through support of human bone marrow-derived stem cell survival and growth in vitro. Next, we established a plastic culture-free process that concentrates and increases the yield of CD146+/CD271+ early mesenchymal progenitor cells in BMA (concentrated BMA [cBMA]). cBMA exhibited increased colony formation and multipotency (including chondrogenic differentiation) in vitro compared with standard BMA. PB-derived gels encapsulated with cBMA also demonstrated increased cell proliferation and enhanced mineralization when assessed for bone TE in vitro. This strategy can potentially be developed for use in any tissue regeneration application; however, bone regeneration was used as a test bed for this study.
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Affiliation(s)
- Paiyz E. Mikael
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut, USA
| | | | - Sangamesh G. Kumbar
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut, USA
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut, USA
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, Connecticut, USA
| | - Syam P. Nukavarapu
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut, USA
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut, USA
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, Connecticut, USA
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Dasargyri A, Reichmann E, Moehrlen U. Bio-engineering of fetal cartilage for in utero spina bifida repair. Pediatr Surg Int 2020; 36:25-31. [PMID: 31576465 DOI: 10.1007/s00383-019-04573-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/12/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE During in utero surgical spina bifida repair, a multi-layer closure is used to cover the defect. These soft tissues, however, might be not sufficient to protect the spinal cord during the future life. Our goal is to develop a more rigid protective tissue construct consisting of bioengineered cartilage and skin. METHODS Ovine fetal chondrocytes were tested for their in vitro chondrogenic potential in three-dimensional cultures. Scaffolds based on natural biopolymers (collagen I, fibrin glue) were loaded with varying amounts of fetal chondrocytes and assessed for their ability to support cartilage formation in vitro. The bioengineered constructs were analyzed using cartilage-specific histology stainings and compared to native fetal cartilage. RESULTS Fetal chondrocytes actively produced cartilage extracellular matrix in three-dimensional cultures, even at high passages. Among all bioengineered scaffolds, only the collagen I-based hydrogels loaded with high densities of fetal chondrocytes showed cartilage-like structure in vitro but also extensive shrinking. CONCLUSION Fetal chondrocytes represent a good cell source for cartilage bioengineering. Collagen I scaffolds support cartilage formation in vitro, but the construct shrinking constitutes a major limitation. Future steps include the identification of suitable bioprintable materials which maintain their shape and size, as well as the analysis of the interphase between bioengineered cartilage and skin.
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Affiliation(s)
- Athanasia Dasargyri
- Tissue Biology Research Unit, Department of Surgery, University Children's Hospital Zurich, Zurich, Switzerland
| | - Ernst Reichmann
- Tissue Biology Research Unit, Department of Surgery, University Children's Hospital Zurich, Zurich, Switzerland
| | - Ueli Moehrlen
- Tissue Biology Research Unit, Department of Surgery, University Children's Hospital Zurich, Zurich, Switzerland. .,Pediatric Surgery, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland. .,Zurich Center for Fetal Diagnosis and Therapy, Zurich, Switzerland.
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11
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Irwin RM, Bonassar LJ, Cohen I, Matuska AM, Commins J, Cole B, Fortier LA. The clot thickens: Autologous and allogeneic fibrin sealants are mechanically equivalent in an ex vivo model of cartilage repair. PLoS One 2019; 14:e0224756. [PMID: 31703078 PMCID: PMC6839864 DOI: 10.1371/journal.pone.0224756] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Accepted: 10/21/2019] [Indexed: 02/07/2023] Open
Abstract
Fibrin sealants are commonly used in cartilage repair surgeries to adhere cells or grafts into a cartilage defect. Both autologous and commercial allogeneic fibrin sealants are used in cartilage repair surgeries, yet there are no studies characterizing and comparing the mechanical properties of fibrin sealants from all-autologous sources. The objectives of this study were to investigate (i) the effect of fibrinogen and thrombin sources on failure mechanics of sealants, and (ii) how sealants affect the adhesion of particulated cartilage graft material (BioCartilage) to surrounding cartilage under physiological loading. Allogeneic thrombin and fibrinogen were purchased (Tisseel), and autologous sources were prepared from platelet-rich plasma (PRP) and platelet-poor plasma (PPP) generated from human blood. To compare failure characteristics, sealants were sandwiched between cartilage explants and pulled to failure. The effect of sealant on the adhesion of BioCartilage graft to cartilage was determined by quantifying microscale strains at the graft-cartilage interface using an in vitro cartilage defect model subjected to shear loading at physiological strains well below failure thresholds. Fibrinogen sources were not equivalent; PRP fibrinogen created sealants that were more brittle, failed at lower strains, and resulted in sustained higher strains through the graft-cartilage interface depth compared to PPP and allogeneic sources. PPP clotted slower compared to PRP, suggesting PPP may percolate deeper into the repair to provide more stability through the tissue depth. There was no difference in bulk failure properties or microscale strains at the graft-cartilage interface between the purely autologous sealant (autologous thrombin + PPP fibrinogen) and the commercial allogeneic sealant. Clinical Significance: All-autologous fibrin sealants fabricated with PPP have comparable adhesion strength as commercial allogeneic sealants in vitro, whereas PRP creates an inferior all-autologous sealant that sustains higher strains through the graft-cartilage interface depth.
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Affiliation(s)
- Rebecca M. Irwin
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York, United States of America
| | - Lawrence J. Bonassar
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York, United States of America
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York, United States of America
| | - Itai Cohen
- Department of Physics, Cornell University, Ithaca, New York, United States of America
| | - Andrea M. Matuska
- Research and Development, Arthrex Inc., Naples, Florida, United States of America
| | - Jacqueline Commins
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York, United States of America
| | - Brian Cole
- Midwest Orthopedics at Rush, Rush University Medical Center, Chicago, Illinois, United States of America
| | - Lisa A. Fortier
- College of Veterinary Medicine, Cornell University, Ithaca, New York, United States of America
- * E-mail:
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12
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Drobnic M, Perdisa F, Kon E, Cefalì F, Marcacci M, Filardo G. Implant strategy affects scaffold stability and integrity in cartilage treatment. Knee Surg Sports Traumatol Arthrosc 2018; 26:2774-2783. [PMID: 29022056 DOI: 10.1007/s00167-017-4737-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 09/28/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE To identify the most appropriate implantation strategy for a novel chondral scaffold in a model simulating the early post-operative phase, in order to optimize the implant procedure and reduce the risk of early failure. METHODS Eight human cadaveric limbs were strapped to a continuous passive motion device and exposed to extension-flexion cycles (0°-90°). Chondral lesions (1.8 cm diameter) were prepared on condyles, patella and trochlea for the implant of a bi-layer collagen-hydroxyapatite scaffold. The first set-up compared four fixation techniques: press-fit (PF) vs. fibrin glue (FG) vs. pins vs. sutures; the second compared circular and square implants; the third investigated stability in a weight-bearing simulation. The scaffolds were evaluated using semi-quantitative Drobnic and modified Bekkers scores. RESULTS FG presented higher total Drobnic and Bekkers scores compared to PF (both p = 0.002), pins (p = 0.013 and 0.001) and sutures (p = 0.001 and < 0.0005). Pins offered better total Drobnic and Bekkers scores than PF in the anterior femoral condyles (p = 0.007 and 0.065), similar to FG. The comparison of round and square implants applied by FG showed worst results for square lesions (Drobnic score p = 0.049, Bekkers score p = 0.037). Finally, load caused worst overall results (Drobnic p = 0.018). CONCLUSIONS FG improves the fixation of this collagen-HA scaffold regardless of lesion location, improving implant stability while preserving its integrity. Pins represent a suitable option only for lesions of the anterior condyles. Square scaffolds present weak corners, therefore, round implants should be preferred. Finally, partial weight-bearing simulation significantly affected the scaffold. These findings may be useful to improve surgical technique and post-operative management of patients, to optimize the outcome of chondral scaffold implantation.
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Affiliation(s)
- M Drobnic
- Orthopaedic Clinic, Medical Faculty, University of Ljubjana, Ljubljana, Slovenia
| | - Francesco Perdisa
- Nano-Biotechnology Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano 1/10, Bologna, Italy. .,II Orthopaedic Clinic, Rizzoli Orthopaedic Institute, Via di Barbiano 1/10, 40136, Bologna, Italy.
| | - E Kon
- Humanitas University, Department of Biomedical Science, Rozzano (Milan), Italy
| | - F Cefalì
- Finceramica S.p.A., Faenza, Italy
| | - M Marcacci
- Nano-Biotechnology Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano 1/10, Bologna, Italy.,Humanitas University, Department of Biomedical Science, Rozzano (Milan), Italy
| | - G Filardo
- Nano-Biotechnology Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano 1/10, Bologna, Italy
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13
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Lui H, Vaquette C, Bindra R. Tissue Engineering in Hand Surgery: A Technology Update. J Hand Surg Am 2017; 42:727-735. [PMID: 28751113 DOI: 10.1016/j.jhsa.2017.06.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 06/12/2017] [Indexed: 02/02/2023]
Abstract
The field of hand surgery is constantly evolving to meet the challenges of repairing intricate anatomical structures with limited availability of donor tissue. The past 10 years have seen an exponential growth in tissue engineering, which has broadened the perspectives of tackling these age-old problems. Various fabrication techniques such as melt electrospinning and fused deposition modelling have been employed to synthesize 3-dimensional bioscaffolds that can be used to replace lost tissue. These bioscaffolds with strategic biomimicry have been shown to allow for integrative and functional repair of tissue injuries. This review article summarizes the most current advances in tissue engineering and its applications in the field of hand surgery. It outlines the current tissue engineering techniques commonly used for tackling musculoskeletal problems and highlights the most promising approaches according to clinical evidence. In particular, the paper explores regenerative medicine concepts applied to specific tissues including nerve, bone, cartilage, tendon, ligament, and vessels. In the face of innovative and pioneering research, tissue engineering will undoubtedly play a key role in reconstructive hand surgery in the not too distant future.
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Affiliation(s)
- Hayman Lui
- Department of Orthopaedics, Gold Coast University Hospital & Griffith University School of Medicine, Southport, Australia.
| | - Cedryck Vaquette
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Queensland, Australia
| | - Randip Bindra
- Department of Orthopaedics, Gold Coast University Hospital & Griffith University School of Medicine, Southport, Australia
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14
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Henrionnet C, Dumas D, Hupont S, Stoltz JF, Mainard D, Gillet P, Pinzano A. New tools for non-invasive exploration of collagen network in cartilaginous tissue-engineered substitute. Biomed Mater Eng 2017; 28:S229-S235. [PMID: 28372299 DOI: 10.3233/bme-171645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In tissue engineering approaches, the quality of substitutes is a key element to determine its ability to treat cartilage defects. However, in clinical practice, the evaluation of tissue-engineered cartilage substitute quality is not possible due to the invasiveness of the standard procedure, which is to date histology. The aim of this work was to validate a new innovative system performed from two-photon excitation laser adapted to an optical macroscope to evaluate at macroscopic scale the collagen network in cartilage tissue-engineered substitutes in confrontation with gold standard histologic techniques or immunohistochemistry to visualize type II collagen. This system permitted to differentiate the quality of collagen network between ITS and TGF-β1 treatments. Multiscale large field imaging combined to multimodality approaches (SHG-TCSPC) at macroscopical scale represent an innovative and non-invasive technique to monitor the quality of collagen network in cartilage tissue-engineered substitutes before in vivo implantation.
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Affiliation(s)
- Christel Henrionnet
- Ingénierie Moléculaire et Physiopathologie Articulaire, UMR 7365 CNRS - Université de Lorraine, Bâtiment Biopôle, 9 avenue de la Forêt de Haye, BP 50184, F54505 Vandoeuvre-lès-Nancy, France
| | - Dominique Dumas
- Ingénierie Moléculaire et Physiopathologie Articulaire, UMR 7365 CNRS - Université de Lorraine, Bâtiment Biopôle, 9 avenue de la Forêt de Haye, BP 50184, F54505 Vandoeuvre-lès-Nancy, France.,Plateforme d'Imagerie Cellulaire PTIBC-IBISA, FR3209 CNRS, Faculté de Médecine, 9 avenue de la Forêt de Haye, BP 50184, F54505 Vandoeuvre-lès-Nancy, France
| | - Sébastien Hupont
- Plateforme d'Imagerie Cellulaire PTIBC-IBISA, FR3209 CNRS, Faculté de Médecine, 9 avenue de la Forêt de Haye, BP 50184, F54505 Vandoeuvre-lès-Nancy, France
| | - Jean François Stoltz
- Ingénierie Moléculaire et Physiopathologie Articulaire, UMR 7365 CNRS - Université de Lorraine, Bâtiment Biopôle, 9 avenue de la Forêt de Haye, BP 50184, F54505 Vandoeuvre-lès-Nancy, France
| | - Didier Mainard
- Ingénierie Moléculaire et Physiopathologie Articulaire, UMR 7365 CNRS - Université de Lorraine, Bâtiment Biopôle, 9 avenue de la Forêt de Haye, BP 50184, F54505 Vandoeuvre-lès-Nancy, France.,Plateforme d'Imagerie Cellulaire PTIBC-IBISA, FR3209 CNRS, Faculté de Médecine, 9 avenue de la Forêt de Haye, BP 50184, F54505 Vandoeuvre-lès-Nancy, France.,Service de Chirurgie Orthopédique et Traumatologique, CHRU Nancy, 29 avenue du Maréchal de Lattre de Tassigny, CO60034, F54035 Nancy, France
| | - Pierre Gillet
- Ingénierie Moléculaire et Physiopathologie Articulaire, UMR 7365 CNRS - Université de Lorraine, Bâtiment Biopôle, 9 avenue de la Forêt de Haye, BP 50184, F54505 Vandoeuvre-lès-Nancy, France
| | - Astrid Pinzano
- Ingénierie Moléculaire et Physiopathologie Articulaire, UMR 7365 CNRS - Université de Lorraine, Bâtiment Biopôle, 9 avenue de la Forêt de Haye, BP 50184, F54505 Vandoeuvre-lès-Nancy, France
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15
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Itokazu M, Wakitani S, Mera H, Tamamura Y, Sato Y, Takagi M, Nakamura H. Transplantation of Scaffold-Free Cartilage-Like Cell-Sheets Made from Human Bone Marrow Mesenchymal Stem Cells for Cartilage Repair: A Preclinical Study. Cartilage 2016; 7:361-72. [PMID: 27688844 PMCID: PMC5029565 DOI: 10.1177/1947603515627342] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVE The object of this study was to determine culture conditions that create stable scaffold-free cartilage-like cell-sheets from human bone marrow-derived mesenchymal stem cells (hBMSCs) and to assess their effects after transplantation into osteochondral defects in nude rats. DESIGN (Experiment 1) The hBMSCs were harvested from 3 males, the proliferative and chondrogenic capacities were assessed at passage 1, and the cells were expanded in 3 different culture conditions: (1) 5% fetal bovine serum (FBS), (2) 10% FBS, and (3) 5% FBS with fibroblast growth factor 2 (FGF-2). The cells were harvested and made chondrogenic pellet culture. The cell proliferation rate, glycosaminoglycan/DNA ratio, and safranin-O staining intensity of pellets cultured condition 3 were higher than those of conditions 1 and 2. (Experiment 2) The hBMSCs were expanded and passaged 3 times under culture condition 3, and fabricate the cell-sheets in chondrogenic medium either with or without FBS. The cell-sheets fabricated with FBS maintained their size with flat edges. (Experiment 3) The cell-sheets were transplanted into osteochondral defects in nude rats. Histological analysis was performed at 2, 4, and 12 weeks after surgery. RESULTS The osteochondral repair was better after sheet transplantation than in the control group and significantly improved Wakitani score. Immunostaining with human-specific vimentin antibody showed that the transplanted cells became fewer and disappeared at 12 weeks. CONCLUSIONS These results indicate that culture with FGF-2 may help to quickly generate sufficient numbers of cells to create stable and reliable scaffold-free cartilage-like cell-sheets, which contribute to the regeneration of osteochondral defects.
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Affiliation(s)
- Maki Itokazu
- Department of Orthopedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan,School of Health and Sports Science, Mukogawa Women’s University, Nishinomiya, Japan
| | - Shigeyuki Wakitani
- School of Health and Sports Science, Mukogawa Women’s University, Nishinomiya, Japan,Department of Artificial Joint & Biomaterials Hiroshima University Graduate School of Biomedical Sciences, Hiroshima, Japan,Shigeyuki Wakitani, Department of Artificial Joint & Biomaterials Hiroshima University Graduate School of Biomedical Sciences, Hiroshima, Japan, 1-2-3 Kasumi, Minami-ku, Hiroshima 739-8553, Japan.
| | - Hisashi Mera
- School of Health and Sports Science, Mukogawa Women’s University, Nishinomiya, Japan,International Medical Device Alliance, Foundation for Biomedical Research and Innovation, Kobe, Japan
| | - Yoshihiro Tamamura
- School of Health and Sports Science, Mukogawa Women’s University, Nishinomiya, Japan
| | - Yasushi Sato
- Laboratory of Cell Processing Engineering, Division of Biotechnology and Macromolecular Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Japan
| | - Mutsumi Takagi
- Laboratory of Cell Processing Engineering, Division of Biotechnology and Macromolecular Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Japan
| | - Hiroaki Nakamura
- Department of Orthopedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
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16
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Fukushima K. Poly(trimethylene carbonate)-based polymers engineered for biodegradable functional biomaterials. Biomater Sci 2016; 4:9-24. [DOI: 10.1039/c5bm00123d] [Citation(s) in RCA: 211] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review presents recent examples of applications and functionalization strategies of poly(trimethylene carbonate), its copolymers, and its derivatives to exploit the unique physicochemical properties of the aliphatic polycarbonate backbone.
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Affiliation(s)
- K. Fukushima
- Department of Polymer Science and Engineering
- Graduate School of Science and Engineering
- Yamagata University
- Yamagata 992-8510
- Japan
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17
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Sato Y, Mera H, Takahashi D, Majima T, Iwasaki N, Wakitani S, Takagi M. Synergistic effect of ascorbic acid and collagen addition on the increase in type 2 collagen accumulation in cartilage-like MSC sheet. Cytotechnology 2015; 69:405-416. [PMID: 26572654 DOI: 10.1007/s10616-015-9924-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 10/13/2015] [Indexed: 11/29/2022] Open
Abstract
Aiming to increase the content of type 2 collagen in scaffold-free cartilage-like cell sheets prepared using human bone marrow mesenchymal stem cells, the effect of several kinds of additives in a chondrogenic medium was investigated. Addition of ascorbic acid 2 phosphate (VCP) at a high concentration (250 µg/ml) and type 1 atelocollagen (5 µg/ml) increased the accumulation of type 2 collagen by fourfold and twofold, respectively. On the other hand, an antioxidant, glutathione showed no such effect. The synergistic effect of VCP and type 1 atelocollagen resulted in an eightfold increase in the accumulation level of type 2 collagen. Furthermore, the gene expression level of type 2 collagen increased and that of matrix metalloproteinase-13 (MMP-13) decreased to approximately one-third of the control. The increase in type 2 collagen accumulation in the scaffold-free cartilage-like cell sheet might be due to not only the enhancement of the synthesis but also the suppression of the degradation of type 2 collagen by MMP-13.
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Affiliation(s)
- Yasushi Sato
- Division of Biotechnology and Macromolecular Chemistry, Graduate School of Engineering, Hokkaido University, Kita-ku, N13W8, Sapporo, 060-8628, Japan
| | - Hisashi Mera
- School of Health and Sports Sciences, Mukogawa Women's University, 6-46 Ikebiraki, Nishinomiya, Hyogo, 663-8558, Japan.,Foundation for Biomedical Research and Innovation, International Medical Device Alliance, 1-6-5, Minatojima Minamimachi, Chuo-ku, Kobe, Hyogo, 650-0047, Japan
| | - Daisuke Takahashi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Hokkaido University, Kita-ku, N15W7, Sapporo, 060-8638, Japan
| | - Tokifumi Majima
- Department of Joint Replacement and Tissue Engineering, Graduate School of Medicine, Hokkaido University, Kita-ku, N15W7, Sapporo, 060-8638, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Graduate School of Medicine, Hokkaido University, Kita-ku, N15W7, Sapporo, 060-8638, Japan
| | - Shigeyuki Wakitani
- Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 739-8553, Japan
| | - Mutsumi Takagi
- Division of Biotechnology and Macromolecular Chemistry, Graduate School of Engineering, Hokkaido University, Kita-ku, N13W8, Sapporo, 060-8628, Japan.
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18
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Lopa S, Piraino F, Kemp RJ, Di Caro C, Lovati AB, Di Giancamillo A, Moroni L, Peretti GM, Rasponi M, Moretti M. Fabrication of multi-well chips for spheroid cultures and implantable constructs through rapid prototyping techniques. Biotechnol Bioeng 2015; 112:1457-71. [PMID: 25678107 DOI: 10.1002/bit.25557] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 01/23/2015] [Accepted: 01/26/2015] [Indexed: 01/29/2023]
Abstract
Three-dimensional (3D) culture models are widely used in basic and translational research. In this study, to generate and culture multiple 3D cell spheroids, we exploited laser ablation and replica molding for the fabrication of polydimethylsiloxane (PDMS) multi-well chips, which were validated using articular chondrocytes (ACs). Multi-well ACs spheroids were comparable or superior to standard spheroids, as revealed by glycosaminoglycan and type-II collagen deposition. Moreover, the use of our multi-well chips significantly reduced the operation time for cell seeding and medium refresh. Exploiting a similar approach, we used clinical-grade fibrin to generate implantable multi-well constructs allowing for the precise distribution of multiple cell types. Multi-well fibrin constructs were seeded with ACs generating high cell density regions, as shown by histology and cell fluorescent staining. Multi-well constructs were compared to standard constructs with homogeneously distributed ACs. After 7 days in vitro, expression of SOX9, ACAN, COL2A1, and COMP was increased in both constructs, with multi-well constructs expressing significantly higher levels of chondrogenic genes than standard constructs. After 5 weeks in vivo, we found that despite a dramatic size reduction, the cell distribution pattern was maintained and glycosaminoglycan content per wet weight was significantly increased respect to pre-implantation samples. In conclusion, multi-well chips for the generation and culture of multiple cell spheroids can be fabricated by low-cost rapid prototyping techniques. Furthermore, these techniques can be used to generate implantable constructs with defined architecture and controlled cell distribution, allowing for in vitro and in vivo investigation of cell interactions in a 3D environment.
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Affiliation(s)
- Silvia Lopa
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute, Via R. Galeazzi 4, 20161, Milan, Italy
| | - Francesco Piraino
- Department of Electronics, Information, and Bioengineering, Politecnico di Milano, Milan, 20133, Italy
| | - Raymond J Kemp
- Tissue Regeneration Department, University of Twente, 7522 NB, Enschede, The Netherlands
| | - Clelia Di Caro
- Department of Electronics, Information, and Bioengineering, Politecnico di Milano, Milan, 20133, Italy
| | - Arianna B Lovati
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute, Via R. Galeazzi 4, 20161, Milan, Italy
| | | | - Lorenzo Moroni
- Tissue Regeneration Department, University of Twente, 7522 NB, Enschede, The Netherlands
- Department of Complex Tissue Regeneration, Maastricht University, 6200 MD, Maastricht, The Netherlands
| | - Giuseppe M Peretti
- IRCCS Galeazzi Orthopaedic Institute, Milan, 20161, Italy
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, 20161, Italy
| | - Marco Rasponi
- Department of Electronics, Information, and Bioengineering, Politecnico di Milano, Milan, 20133, Italy
| | - Matteo Moretti
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute, Via R. Galeazzi 4, 20161, Milan, Italy.
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19
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Abstract
Over the past 2 decades there has been a profound shift in our perception of the role of the meniscus in the knee joint. Orthopaedic opinion now favors salvaging and restoring the damaged meniscus where possible. Basic science is characterizing its form (anatomy) and functionality (biological and biomechanical) in an attempt to understand the effect of meniscal injury and repair on the knee joint as a whole. The meniscus is a complex tissue and has warranted extensive basic science, translational, and clinical research to identify techniques to augment healing and even replace the meniscus. The application of quantitative magnetic resonance image sequencing to the meniscus and articular cartilage of the affected compartment promises to add a quantifiable outcome measure to the body of clinical evidence that supports restoration of the meniscus. This article discusses the recent advances and outcomes in the pursuit of meniscal restoration with particular focus on the use of augmentation strategies in meniscal repair, meniscal imaging, and translational strategies.
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Affiliation(s)
- Ian D Hutchinson
- Ian Hutchinson, Laboratory for Tissue Engineering Regeneration & Repair, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021. (
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20
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Filardo G, Drobnic M, Perdisa F, Kon E, Hribernik M, Marcacci M. Fibrin glue improves osteochondral scaffold fixation: study on the human cadaveric knee exposed to continuous passive motion. Osteoarthritis Cartilage 2014; 22:557-65. [PMID: 24487043 DOI: 10.1016/j.joca.2014.01.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 01/09/2014] [Accepted: 01/17/2014] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To evaluate stability and integrity of bi-layer and three-layer collagen-hydroxyapatite (C-HA) osteochondral scaffolds in a human cadaveric knee exposed to continuous passive motion (CPM) with and without loading and the role of added fibrin glue to improve the press-fit fixation of C-HA scaffolds. DESIGN Osteochondral lesions (2.0 × 1.5 cm) were chiseled out on both condyles and trochlea in eight human cadaveric knees. A total of 24 bi-layer (5 mm, four in each condyle) or three-layer C-HA scaffolds (8 mm, eight in the trochlea, four in each condyle) were first press-fit implanted and underwent testing with CPM, 90 cycles, 0°-90°. The second set of 24 scaffolds was implanted in cleaned lesions with the addition of fibrin glue. Two knees with fibrin glue fixation were additionally exposed to 15 kg loading, with 30 cycles of CPM, 0°-30°. Then, the knees were reopened and the scaffolds were evaluated using semi-quantitative Drobnic and modified Bekkers scores. RESULTS All but two scaffolds remained in the lesions site throughout CPM. Two implants failed: both were bi-layer osteochondral scaffolds, press-fit implanted at the lateral femoral condyle (LFC). A statistically significant difference was obtained between press-fit and fibrin glue implants with both Drobnic (2.9 ± 0.7 vs 4.3 ± 0.1, P < 0.0005) and Bekkers (3.3 ± 1.0 vs 5.0 ± 0.1, P < 0.0005) scores. Additional knee loading did not affect fibrin glue scaffold fixation or integrity. CONCLUSION This cadaveric study showed fibrin glue notably improved bi-layer or three-layer C-HA scaffold press-fit fixation regardless of lesion location. It is therefore recommended that fibrin glue be used during surgery to improve early post-operative C-HA scaffold stability and integrity.
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Affiliation(s)
- G Filardo
- Nano-Biotechnology Laboratory, II Orthopaedic Clinic, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - M Drobnic
- Orthopaedic Clinic, Medical Faculty, University of Ljubljana, Slovenia
| | - F Perdisa
- Biomechanics Laboratory, II Orthopaedic Clinic, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - E Kon
- Nano-Biotechnology Laboratory, II Orthopaedic Clinic, Rizzoli Orthopaedic Institute, Bologna, Italy.
| | - M Hribernik
- Institute of Anatomy, Medical Faculty, University of Ljubljana, Slovenia
| | - M Marcacci
- Biomechanics Laboratory, II Orthopaedic Clinic, Rizzoli Orthopaedic Institute, Bologna, Italy
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21
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Schüller-Ravoo S, Teixeira SM, Feijen J, Grijpma DW, Poot AA. Flexible and Elastic Scaffolds for Cartilage Tissue Engineering Prepared by Stereolithography Using Poly(trimethylene carbonate)-Based Resins. Macromol Biosci 2013; 13:1711-9. [DOI: 10.1002/mabi.201300399] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 10/07/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Sigrid Schüller-Ravoo
- MIRA Institute for Biomedical Engineering and Technical Medicine, Department of Biomaterials Science and Technology; University of Twente; PO Box 217 7500 AE Enschede The Netherlands
| | - Sandra M. Teixeira
- MIRA Institute for Biomedical Engineering and Technical Medicine, Department of Biomaterials Science and Technology; University of Twente; PO Box 217 7500 AE Enschede The Netherlands
| | - Jan Feijen
- MIRA Institute for Biomedical Engineering and Technical Medicine, Department of Biomaterials Science and Technology; University of Twente; PO Box 217 7500 AE Enschede The Netherlands
| | - Dirk W. Grijpma
- MIRA Institute for Biomedical Engineering and Technical Medicine, Department of Biomaterials Science and Technology; University of Twente; PO Box 217 7500 AE Enschede The Netherlands
- W.J. Kolff Institute, Department of Biomedical Engineering; University Medical Center Groningen and University of Groningen; PO Box 96 9700 AD Groningen The Netherlands
| | - André A. Poot
- MIRA Institute for Biomedical Engineering and Technical Medicine, Department of Biomaterials Science and Technology; University of Twente; PO Box 217 7500 AE Enschede The Netherlands
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Kharkar PM, Kiick KL, Kloxin AM. Designing degradable hydrogels for orthogonal control of cell microenvironments. Chem Soc Rev 2013; 42:7335-72. [PMID: 23609001 PMCID: PMC3762890 DOI: 10.1039/c3cs60040h] [Citation(s) in RCA: 471] [Impact Index Per Article: 42.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Indexed: 12/12/2022]
Abstract
Degradable and cell-compatible hydrogels can be designed to mimic the physical and biochemical characteristics of native extracellular matrices and provide tunability of degradation rates and related properties under physiological conditions. Hence, such hydrogels are finding widespread application in many bioengineering fields, including controlled bioactive molecule delivery, cell encapsulation for controlled three-dimensional culture, and tissue engineering. Cellular processes, such as adhesion, proliferation, spreading, migration, and differentiation, can be controlled within degradable, cell-compatible hydrogels with temporal tuning of biochemical or biophysical cues, such as growth factor presentation or hydrogel stiffness. However, thoughtful selection of hydrogel base materials, formation chemistries, and degradable moieties is necessary to achieve the appropriate level of property control and desired cellular response. In this review, hydrogel design considerations and materials for hydrogel preparation, ranging from natural polymers to synthetic polymers, are overviewed. Recent advances in chemical and physical methods to crosslink hydrogels are highlighted, as well as recent developments in controlling hydrogel degradation rates and modes of degradation. Special attention is given to spatial or temporal presentation of various biochemical and biophysical cues to modulate cell response in static (i.e., non-degradable) or dynamic (i.e., degradable) microenvironments. This review provides insight into the design of new cell-compatible, degradable hydrogels to understand and modulate cellular processes for various biomedical applications.
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Affiliation(s)
- Prathamesh M. Kharkar
- Department of Materials Science and Engineering , University of Delaware , Newark , DE 19716 , USA . ;
| | - Kristi L. Kiick
- Department of Materials Science and Engineering , University of Delaware , Newark , DE 19716 , USA . ;
- Biomedical Engineering , University of Delaware , Newark , DE 19716 , USA
- Delaware Biotechnology Institute , University of Delaware , Newark , DE 19716 , USA
| | - April M. Kloxin
- Department of Materials Science and Engineering , University of Delaware , Newark , DE 19716 , USA . ;
- Department of Chemical and Biomolecular Engineering , University of Delaware , Newark , DE 19716 , USA
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23
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Sato Y, Wakitani S, Takagi M. Xeno-free and shrinkage-free preparation of scaffold-free cartilage-like disc-shaped cell sheet using human bone marrow mesenchymal stem cells. J Biosci Bioeng 2013; 116:734-9. [PMID: 23849744 DOI: 10.1016/j.jbiosc.2013.05.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 04/16/2013] [Accepted: 05/13/2013] [Indexed: 02/05/2023]
Abstract
Aiming for the clinical application of cartilage regeneration, the xeno-free cultivation method to obtain a scaffold-free cartilage-like disc-shaped cell sheet using mesenchymal stem cells (MSCs) derived from human bone marrow without the shrinkage of the sheet was investigated. MSCs were inoculated into Cell Culture Insert (0.3 cm(2), pore size; 0.4 μm, pore density; 1.0 × 10(8)/cm(2)) using serum-free chondrogenic differentiation medium containing TGF-β3, IGF-1 and dexamethasone or other modified media, and cultured at 37 °C in 5% CO2 for 3 weeks. Sheet thickness, cartilage specific genes expression, ECM accumulation were determined, and the sections of sheets were stained with alcian blue. A novel mixed medium consisting of a growth medium (10% FCS) with a serum-free chondrogenic differentiation medium could prevent the shrinkage of the sheet and produced a disc-shaped cell sheet. The depth of the sheet was approximately 0.7 mm and the gene expression levels were higher than those in cells in normal human cartilage. The use of human serum instead of FCS did not cause shrinkage and did not decrease the accumulation levels of sGAG and type 2 collagen in the sheet. The cultivation of MSCs grown with completely xeno-free materials using the mixed medium containing human serum in a cell culture insert showed a sheet depth of 1.0 mm and gene expression levels higher than those in normal cartilage. The scaffold-free and xeno-free cartilage-like cell sheet was successfully formed without shrinkage using human bone marrow MSCs and the chondrogenic differentiation medium containing human serum.
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Affiliation(s)
- Yasushi Sato
- Division of Biotechnology and Macromolecular Chemistry, Graduate School of Engineering, Hokkaido University, Kita-ku, N13W8, Sapporo 060-8628, Japan
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Martinez-Zubiaurre I, Annala T, Polacek M. Behavior of Human Articular Chondrocytes During In Vivo Culture in Closed, Permeable Chambers. CELL MEDICINE 2012; 4:99-107. [PMID: 26858857 DOI: 10.3727/215517912x647226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The exact contribution of transplanted chondrocytes for cartilage tissue repair prior expansion in monolayer culures remains undetermined. At our laboratory, we have created a new permeable chamber to study the chondrogenesis of dedifferentiated cells implanted ectopically in a closed and controlled environment. The behavior of chondrocytes has been studied in settings frequently used in clinical approaches during transplantation, namely injection of autologous chondrocyte cells in suspension (ACI), cells soaked in collagen membranes (MACI), and cells applied in a polymer gel (fibrin). As controls, we have tested the redifferentiation of chondrocytes in cell aggregates, and we have checked the proper functionality of chambers both in vitro and in vivo. After retrieval, firmed tissue-like shapes were recovered only from chambers containing cells seeded in membranes. Histomorphological, immunohistochemical, and ultrastructural analyses revealed synthesis of fibrous-like tissue, characterized by low-density collagen fibers, low collagen type II, abundant collagen type I, and low amounts of proteoglycans. Additionally, neither the collagen membranes nor the fibrin gel was reabsorbed by cells. In summary, our results show that the newly developed permeable chambers function correctly, allowing proper cell feeding and preventing cell leakage or host cell invasion. Additionally, our results suggest that, under these circumstances, chondrocytes are not able to orchestrate formation of hyaline cartilage and have little capacity to degrade artificial membranes or carrier gels such as fibrin. These are interesting observations that should be considered for understanding what role the transplanted chondrocytes play during restoration of articular cartilage after implantation.
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Affiliation(s)
- Iñigo Martinez-Zubiaurre
- Orthopaedic Surgery Department, Institute of Clinical Medicine, University of Tromsø , Tromsø , Norway
| | | | - Martin Polacek
- Orthopaedic Surgery Department, Institute of Clinical Medicine, University of Tromsø, Tromsø, Norway; ‡Orthopaedic Surgery Department, University Hospital of North Norway, Tromsø, Norway
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25
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Abstract
Orthopedic surgeons and researchers worldwide are continuously faced with the challenge of regenerating articular cartilage defects. However, until now, it has not been possible to completely mimic the biological and biochemical properties of articular cartilage using current research and development approaches. In this review, biomaterials previously used for articular cartilage repair research are addressed. Furthermore, a brief discussion of the state of the art of current cell printing procedures mimicking native cartilage is offered in light of their use as future alternatives for cartilage tissue engineering. Inkjet cell printing, controlled deposition cell printing tools, and laser cell printing are cutting-edge techniques in this context. The development of mimetic hydrogels with specific biological properties relevant to articular cartilage native tissue will support the development of improved, functional, and novel engineered tissue for clinical application.
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Affiliation(s)
| | - Wolf Drescher
- Department of Orthopedics Surgery, RWTH Aachen University Hospital, Aachen, Germany
| | - Björn Rath
- Department of Orthopedics Surgery, RWTH Aachen University Hospital, Aachen, Germany
| | - Markus Tingart
- Department of Orthopedics Surgery, RWTH Aachen University Hospital, Aachen, Germany
| | - Horst Fischer
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Aachen, Germany
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26
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Deponti D, Di Giancamillo A, Mangiavini L, Pozzi A, Fraschini G, Sosio C, Domeneghini C, Peretti GM. Fibrin-based model for cartilage regeneration: tissue maturation from in vitro to in vivo. Tissue Eng Part A 2012; 18:1109-22. [PMID: 22316220 DOI: 10.1089/ten.tea.2011.0272] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
One of the crucial points for a successful tissue-engineering approach for cartilage repair is represented by the level of in vitro maturation of the engineered tissue before implantation. The purpose of this work was to evaluate the effect of the level of in vitro maturation of engineered cartilaginous samples on the tissue quality after in vivo implantation. Samples were obtained from isolated swine articular chondrocytes embedded in fibrin glue. The cell-fibrin composites were either cultured in vitro or directly implanted in vivo for 1, 5, and 9 weeks. Other experimental samples were precultured for either 1 or 5 weeks in vitro and then implanted in vivo for 4 additional weeks. All the samples were analyzed by histology, immunohistochemistry, biochemistry, and gene expression. The results strongly suggest that the in vivo culture in this model promoted a better tissue maturation than that obtained in the in vitro condition, and that 1 week in vitro preculture resulted in the primary structuring of the engineered composites and their subsequent maturation in vivo, without affecting the cell viability and activity, while a prolonged in vitro preculture caused a cell and matrix degeneration that could not be rescued in vivo.
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Affiliation(s)
- Daniela Deponti
- Faculty of Exercise Sciences, University of Milan, Milan, Italy
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27
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Danisovic L, Varga I, Zamborsky R, Böhmer D. The tissue engineering of articular cartilage: cells, scaffolds and stimulating factors. Exp Biol Med (Maywood) 2011; 237:10-7. [PMID: 22156044 DOI: 10.1258/ebm.2011.011229] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Damage or loss of articular cartilage as a consequence of congenital anomaly, degenerative joint disease or injury leads to progressive debilitation, which has a negative impact on the quality of life of affected individuals in all age groups. Classical surgical techniques for hyaline cartilage reparation are frequently insufficient and in many cases it is not possible to obtain the expected results. For this reason, researchers and surgeons are forced to find a method to induce complete cartilage repair. Recently, the advent of tissue engineering has provided alternative possibilities for the treatment of these patients by application of cell-based therapy (e.g. chondrocytes and adult stem cells) combined with synthetic substitutes of the extracellular matrix and bioactive factors to prepare functional replacement of hyaline cartilage. This communication is aimed at a brief review of the current status of cartilage tissue engineering and recent advances in the field.
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Affiliation(s)
- L'ubos Danisovic
- Institute of Medical Biology, Genetics and Clinical Genetics, University in Bratislava, Sasinkova 4, 811 08 Bratislava, Slovak Republic.
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28
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Jin CZ, Cho JH, Choi BH, Wang LM, Kim MS, Park SR, Yoon JH, Yun JH, Oh HJ, Min BH. The maturity of tissue-engineered cartilage in vitro affects the repairability for osteochondral defect. Tissue Eng Part A 2011; 17:3057-65. [PMID: 21736425 DOI: 10.1089/ten.tea.2010.0605] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Cartilage tissue engineering using cells and biocompatible scaffolds has emerged as a promising approach to repair of cartilage damage. To date, however, no engineered cartilage has proven to be equivalent to native cartilage in terms of biochemical and compression properties, as well as histological features. An alternative strategy for cartilage engineering is to focus on the in vivo regeneration potential of immature engineered cartilage. Here, we used a rabbit model to evaluate the extent to which the maturity of engineered cartilage influenced the remodeling and integration of implanted extracellular matrix scaffolds containing allogenous chondrocytes. Full-thickness osteochondral defects were created in the trochlear groove of New Zealand white rabbits. Left knee defects were left untreated as a control (group 1), and right knee defects were implanted with tissue-engineered cartilage cultured in vitro for 2 days (group 2), 2 weeks (group 3), or 4 weeks (group 4). Histological, chemical, and compression assays of engineered cartilage in vitro showed that biochemical composition became more cartilagenous, and biomechanical property for compression gradually increased with culture time. In an in vivo study, gross imaging and histological observation at 1 and 3 months after implanting in vitro-cultured engineered cartilage showed that defects in groups 3 and 4 were repaired with hyaline cartilage-like tissue, whereas defects were only partially filled with fibrocartilage after 1 month in groups 1 and 2. At 3 months, group 4 showed striking features of hyaline cartilage tissue, with a mature matrix and a columnar arrangement of chondrocytes. Zonal distribution of type II collagen was most prominent, and the International Cartilage Repair Society score was also highest at this time. In addition, the subchondral bone was well ossified. In conclusion, in vivo engineered cartilage was remodeled when implanted; however, its extent to maturity varied with cultivation period. Our results showed that the more matured the engineered cartilage was, the better repaired the osteochondral defect was, highlighting the importance of the in vitro cultivation period.
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Affiliation(s)
- Cheng Zhe Jin
- Cell Therapy Center, Ajou University School of Medicine, Suwon, Gyeonggi, Korea
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29
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Scanty integration of osteochondral allografts cryopreserved at low temperatures with dimethyl sulfoxide. Knee Surg Sports Traumatol Arthrosc 2011; 19:1184-91. [PMID: 21057938 DOI: 10.1007/s00167-010-1317-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2009] [Accepted: 10/21/2010] [Indexed: 01/31/2023]
Abstract
PURPOSE To compare the integration of osteochondral allografts cryopreserved at different temperatures and different concentrations of dimethyl sulfoxide in an in vivo sheep animal model. METHODS Thirty-six adult sheep were randomly allocated to 6 groups of allograft osteochondral transplantation. Six osteochondral cylinders were stored for 6 weeks at -80°C; 6 at -80°C with 10% dimethyl sulfoxide (DMSO); 6 at -80°C with 10% DMSO for 90 min; 6 at -186°C; 6 at -186°C with 10% DMSO; 6 at -186°C for 90 min. After transplantation, all animals were euthanized at 6 months. Harvested specimens underwent gross morphologic and histologic evaluation. RESULTS We found no statistically significant differences when comparing the gross cartilage morphology and histopathologic scores of each group. The Mankin and OARSI scores and the modified Wakitani and OARSI scores showed a good correlation grade. The Mankin and modified Wakitani scores showed a fair correlation grade. CONCLUSION The cryopreservation protocols adopted in the present study provided scanty integration in an in vivo sheep model of osteochondral allograft transplantation. Therefore, their use in the clinical practice is discouraged.
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30
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Maeda S, Fujitomo T, Okabe T, Wakitani S, Takagi M. Shrinkage-free preparation of scaffold-free cartilage-like disk-shaped cell sheet using human bone marrow mesenchymal stem cells. J Biosci Bioeng 2010; 111:489-92. [PMID: 21185779 DOI: 10.1016/j.jbiosc.2010.11.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2010] [Revised: 11/29/2010] [Accepted: 11/29/2010] [Indexed: 02/02/2023]
Abstract
Aiming for the clinical application of cartilage regeneration, a culture method for mesenchymal stem cells (MSCs) derived from human bone marrow to obtain scaffold-free cartilage-like disk-shaped sheet of uniform sizes without the shrinkage was investigated. A disk-shaped cell sheet having the same diameter as that of the membrane without the shrinkage was formed after the cultivation of MSCs (18.6 × 10(5)cells/well) for 3 weeks in a cell culture insert (CCI) containing a flat membrane whose porosity was 12%, while 6.2 and 31.0 × 10(5)MSCs/well, respectively, resulted in the shrinkage of the aggregate and the hole formation in the center part of the sheet. Cell aggregates shrunk also in a 96-well plate and CCIs having lower porosity. The disk-shaped cell sheet showed the comparable thickness (1.2mm) and sulfated glycosaminoglycan (sGAG) density to those of the pellet formed in a pellet culture. The gene expression levels of aggrecan and type II collagen in the disk-shaped cell sheet were not lower than those in the pellet. In conclusion, the usage of CCI having 12% porosity and 18.6 × 10(5)MSCs/well could avoid the shrinkage from the formation of the scaffold-free cartilage-like disk-shaped cell sheet.
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Affiliation(s)
- Satoshi Maeda
- Hokkaido University, Kita-ku N13W8, Sapporo 060-8628, Japan.
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