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Farooqi AR, Bader R, van Rienen U. Numerical Study on Electromechanics in Cartilage Tissue with Respect to Its Electrical Properties. TISSUE ENGINEERING PART B-REVIEWS 2018; 25:152-166. [PMID: 30351244 PMCID: PMC6486674 DOI: 10.1089/ten.teb.2018.0214] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hyaline cartilage undergoes many substantial age-related physiochemical and biomechanical changes that reduce its ability to overcome the effects of mechanical stress and injury. In quest of therapeutic options, magnetic stimulation and electrical stimulation (ES) have been proposed for improving tissue engineering approaches for the repair of articular cartilage. The aim of this study is to summarize in silico investigations involving induced electrical properties of cartilage tissue due to various biophysical stimuli along their respective mathematical descriptions. Based on these, a preliminary numerical study involving electromechanical transduction in bovine cartilage tissue has been carried out using an open source finite element computational software. The simulation results have been compared to experimental results from the literature. This study serves as a basis for further in silico studies to better understand the behavior of hyaline cartilage tissue due to ES and to find an optimal stimulation protocol for the cartilage regeneration. Moreover, it provides an overview of the basic models along with mathematical description and scope for future research regarding electrical behavior of the cartilage tissue using open source software.
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Affiliation(s)
- Abdul Razzaq Farooqi
- 1 Institute of General Electrical Engineering, Faculty of Computer Science and Electrical Engineering, University of Rostock, Rostock, Germany
| | - Rainer Bader
- 2 Research Laboratory for Biomechanics and Implant Technology, Department of Orthopedics, Rostock University Medical Center, University Medicine Rostock, Rostock, Germany.,3 Department Life, Light & Matter, University of Rostock, Rostock, Germany
| | - Ursula van Rienen
- 1 Institute of General Electrical Engineering, Faculty of Computer Science and Electrical Engineering, University of Rostock, Rostock, Germany.,3 Department Life, Light & Matter, University of Rostock, Rostock, Germany
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Gullotta F, Izzo D, Scalera F, Palazzo B, Martin I, Sannino A, Gervaso F. Biomechanical evaluation of hMSCs-based engineered cartilage for chondral tissue regeneration. J Mech Behav Biomed Mater 2018; 86:294-304. [DOI: 10.1016/j.jmbbm.2018.06.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 06/18/2018] [Accepted: 06/25/2018] [Indexed: 01/22/2023]
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53
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Ort C, Dayekh K, Xing M, Mequanint K. Emerging Strategies for Stem Cell Lineage Commitment in Tissue Engineering and Regenerative Medicine. ACS Biomater Sci Eng 2018; 4:3644-3657. [PMID: 33429592 DOI: 10.1021/acsbiomaterials.8b00532] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Stem cells have transformed the fields of tissue engineering and regenerative medicine, and their potential to further advance these fields cannot be overstated. The stem cell niche is a dynamic microenvironment that determines cell fate during development and tissue repair following an injury. Classically, stem cells were studied in isolation of their microenvironment; however, contemporary research has produced a myriad of evidence that shows the importance of multiple aspects of the stem cell niche in regulating their processes. In the context of tissue engineering and regenerative medicine studies, the niche is an artificial environment provided by culture conditions. In vitro culture conditions may involve coculturing with other cell types, developing specific biomaterials, and applying relevant forces to promote the desired lineage commitment. Considerable advance has been made over the past few years toward directed stem cell differentiation; however, the unspecific differentiation of stem cells yielding a mixed population of cells has been a challenge. In this review, we provide a systematic review of the emerging strategies used for lineage commitment within the context of tissue engineering and regenerative medicine. These strategies include scaffold pore-size and pore-shape gradients, stress relaxation, sonic and electromagnetic effects, and magnetic forces. Finally, we provide insights and perspectives into future directions focusing on signaling pathways activated during lineage commitment using external stimuli.
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Affiliation(s)
| | | | - Malcolm Xing
- Department of Mechanical Engineering, University of Manitoba, 66 Chancellors Circle, Winnipeg R3T 2N2, Canada
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Deezagi A, Shomali S. Prostaglandin F-2α Stimulates The Secretion of Vascular Endothelial Growth Factor and Induces Cell Proliferation and Migration of Adipose Tissue Derived Mesenchymal Stem Cells. CELL JOURNAL 2018; 20:259-266. [PMID: 29633604 PMCID: PMC5893298 DOI: 10.22074/cellj.2018.5026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 07/26/2017] [Indexed: 11/04/2022]
Abstract
Objective Tissue engineering today uses factors that can induce differentiation of mesenchymal stem cells
(MSCs) into other cell types. However, the problem of angiogenesis in this differentiated tissue remains an
unresolved area of research interest. The aim of this study was to investigate the effects of prostaglandin F-2α
(PGF-2α) on the expression of vascular endothelial growth factor (VEGF) in human adipose tissue derived MSCs.
Materials and Methods In this experimental research, human adipose tissue was digested using collagenase.
The isolated MSCs cells were treated with PGF-2α (up to 5 μg/ml) and incubated for 96 hours. Cell proliferation,
secretion of VEGF and cell migration were spontaneously assayed by MTT, BrdU, ELISA, RT-PCR and scratching
methods.
Results Cell growth at 1.0, 2.5, 5 µg/ml of PGF-2α was not significantly reduced compared to control cells,
suggesting that these concentrations of PGF-2α are not toxic to cell growth. The results of the BrdU incorporation
assay indicated that, in comparison to untreated cells, BrdU incorporation was respectively 1.08, 1.96, 2.0 and
1.8 fold among cells treated with 0.1, 1.0, 2.5 and 5.0 µg/ml of PGF-2α. The scratching test also demonstrated a
positive influence on cell proliferation and migration. Cells treated with 1.0 µg/ml of PGF-2α for 12 hours showed
the highest relative migration and coverage in comparison to untreated cells. Quantitative VEGF ELISA and RT-
PCR results indicated an increase in VEGF expression and secretion in the presence of PGF-2α. The amount of
VEGF produced in response to 0.1, 1.0, 2.5 and 5.0 µg/ml of PGF-2α was 62.4 ± 3.2 , 66.3 ± 3.7, 53.1 ± 2.6
and 49.0 ± 2.3 pg/ml, respectively, compared to the 35.2 ± 2.1 pg/ml produced by untreated cells.
Conclusion Stimulation of VEGF secretion by PGF-2α treated MSCs could be useful for the induction of angiogenesis
in tissue engineering in vitro.
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Affiliation(s)
- Abdolkhaleg Deezagi
- Department of Molecular Medicine and Biochemistry, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran.
| | - Samira Shomali
- Department of Molecular Medicine and Biochemistry, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
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Ekambaram BK, Niepel MS, Fuhrmann B, Schmidt G, Groth T. Introduction of Laser Interference Lithography to Make Nanopatterned Surfaces for Fundamental Studies on Stem Cell Response. ACS Biomater Sci Eng 2018; 4:1820-1832. [DOI: 10.1021/acsbiomaterials.8b00060] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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A microfabricated platform for the study of chondrogenesis under different compressive loads. J Mech Behav Biomed Mater 2018; 78:404-413. [DOI: 10.1016/j.jmbbm.2017.12.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 11/29/2017] [Accepted: 12/01/2017] [Indexed: 01/09/2023]
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Khorshidi S, Karkhaneh A. A review on gradient hydrogel/fiber scaffolds for osteochondral regeneration. J Tissue Eng Regen Med 2018; 12:e1974-e1990. [PMID: 29243352 DOI: 10.1002/term.2628] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 07/17/2017] [Accepted: 11/27/2017] [Indexed: 12/31/2022]
Abstract
Osteochondral tissue regeneration is a complicated field due to the distinct properties and healing potential of osseous and chondral phases. In a natural osteochondral region, the composition, mechanics, and structure vary smoothly from bony to cartilaginous phase. Therefore, a homogeneous scaffold cannot satisfy the complexity of the osteochondral matrix. In essence, a natural extracellular matrix is composed of fibrous proteins elongated into a gelatinous background. A hydrogel/fiber scaffold possessing gradient in both phases would be of the utmost interest to imitate tissue arrangement of a native osteochondral interface. However, there are limited research works that exploit hydrogel/fiber scaffolds for osteochondral restoration. In the present review, currently used fibrous or gelatinous scaffolds for osteochondral damages are discussed. Moreover, superiority of using gradient hydrogel/fiber composites for osteochondral regeneration and practical approaches to develop those scaffolds is debated.
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Affiliation(s)
- Sajedeh Khorshidi
- Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Akbar Karkhaneh
- Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
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Xie Z, Tang S, Ye G, Wang P, Li J, Liu W, Li M, Wang S, Wu X, Cen S, Zheng G, Ma M, Wu Y, Shen H. Interleukin-6/interleukin-6 receptor complex promotes osteogenic differentiation of bone marrow-derived mesenchymal stem cells. Stem Cell Res Ther 2018; 9:13. [PMID: 29357923 PMCID: PMC5776773 DOI: 10.1186/s13287-017-0766-0] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 12/24/2017] [Accepted: 12/27/2017] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Interleukin-6 (IL-6) with IL-6 receptor (IL-6R) play an important role in the tissue regeneration in vivo, especially bone metabolism. Bone marrow -derived mesenchymal stem cells (BM-MSCs) are multipotent stromal cells, which are main origin of osteoblasts. However, the roles of IL-6 and IL-6R in the osteogenic differentiation of BM-MSCs are still unclear. METHODS The expression of IL-6 and IL-6R was detected in BM-MSCs during osteogenic differentiation. The activation of the STAT3 pathway was assessed and its role in the osteogenic differentiation of BM-MSCs was determined using the specific inhibitor AG490. Exogenous IL-6/soluble IL-6R or antibodies against IL-6/IL-6R were used to confirm the mechanism by which the IL-6/IL-6R complex promotes the osteogenic differentiation. RESULTS The levels of IL-6 and IL-6R, especially the level of membranous IL-6R but not that of soluble IL-6R, increased during osteogenic differentiation in BM-MSCs. The levels of IL-6 and IL-6R were positively correlated with the osteogenic potential of BM-MSCs. The STAT3 signaling pathway was activated during the osteogenic differentiation of BM-MSCs. AG490 markedly inhibited the activation of the STAT3 pathway and, subsequently, the osteogenic differentiation potential of BM-MSCs. Additionally, exogenous IL-6 and soluble IL-6R accelerated the osteogenic differentiation of BM-MSCs. In contrast, antibodies against IL-6 or IL-6R suppressed the osteogenic differentiation of BM-MSCs. Moreover, IL-6 and IL-6R were found to stimulate each other's expression in BM-MSCs. CONCLUSIONS IL-6 and IL-6R levels increase during the osteogenic differentiation of BM-MSCs. These two molecules form a complex to activate the downstream STAT3 signaling pathway, which promotes osteogenic differentiation in BM-MSCs via an autocrine/paracrine feedback loop.
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Affiliation(s)
- Zhongyu Xie
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107# Yan Jiang Road West, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Su'an Tang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107# Yan Jiang Road West, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Guiwen Ye
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107# Yan Jiang Road West, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Peng Wang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107# Yan Jiang Road West, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Jinteng Li
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107# Yan Jiang Road West, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Wenjie Liu
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107# Yan Jiang Road West, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Ming Li
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107# Yan Jiang Road West, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Shan Wang
- Center for Biotherapy, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107# Yan Jiang Road West, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Xiaohua Wu
- Center for Biotherapy, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107# Yan Jiang Road West, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Shuizhong Cen
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107# Yan Jiang Road West, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Guan Zheng
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107# Yan Jiang Road West, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Mengjun Ma
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107# Yan Jiang Road West, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Yanfeng Wu
- Center for Biotherapy, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107# Yan Jiang Road West, Guangzhou, Guangdong, 510120, People's Republic of China.
| | - Huiyong Shen
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107# Yan Jiang Road West, Guangzhou, Guangdong, 510120, People's Republic of China.
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Armiento AR, Stoddart MJ, Alini M, Eglin D. Biomaterials for articular cartilage tissue engineering: Learning from biology. Acta Biomater 2018; 65:1-20. [PMID: 29128537 DOI: 10.1016/j.actbio.2017.11.021] [Citation(s) in RCA: 357] [Impact Index Per Article: 59.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 10/05/2017] [Accepted: 11/07/2017] [Indexed: 12/27/2022]
Abstract
Articular cartilage is commonly described as a tissue that is made of up to 80% water, is devoid of blood vessels, nerves, and lymphatics, and is populated by only one cell type, the chondrocyte. At first glance, an easy tissue for clinicians to repair and for scientists to reproduce in a laboratory. Yet, chondral and osteochondral defects currently remain an open challenge in orthopedics and tissue engineering of the musculoskeletal system, without considering osteoarthritis. Why do we fail in repairing and regenerating articular cartilage? Behind its simple and homogenous appearance, articular cartilage hides a heterogeneous composition, a high level of organisation and specific biomechanical properties that, taken together, make articular cartilage a unique material that we are not yet able to repair or reproduce with high fidelity. This review highlights the available therapies for cartilage repair and retraces the research on different biomaterials developed for tissue engineering strategies. Their potential to recreate the structure, including composition and organisation, as well as the function of articular cartilage, intended as cell microenvironment and mechanically competent replacement, is described. A perspective of the limitations of the current research is given in the light of the emerging technologies supporting tissue engineering of articular cartilage. STATEMENT OF SIGNIFICANCE The mechanical properties of articular tissue reflect its functionally organised composition and the recreation of its structure challenges the success of in vitro and in vivo reproduction of the native cartilage. Tissue engineering and biomaterials science have revolutionised the way scientists approach the challenge of articular cartilage repair and regeneration by introducing the concept of the interdisciplinary approach. The clinical translation of the current approaches are not yet fully successful, but promising results are expected from the emerging and developing new generation technologies.
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Affiliation(s)
- A R Armiento
- AO Research Institute Davos, Davos Platz, Switzerland.
| | - M J Stoddart
- AO Research Institute Davos, Davos Platz, Switzerland; University Medical Center, Albert-Ludwigs University, Freiburg, Germany.
| | - M Alini
- AO Research Institute Davos, Davos Platz, Switzerland.
| | - D Eglin
- AO Research Institute Davos, Davos Platz, Switzerland.
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Ren B, Hu X, Cheng J, Huang Z, Wei P, Shi W, Yang P, Zhang J, Duan X, Cai Q, Ao Y. Synthesis and characterization of polyphosphazene microspheres incorporating demineralized bone matrix scaffolds controlled release of growth factor for chondrogenesis applications. Oncotarget 2017; 8:114314-114327. [PMID: 29371989 PMCID: PMC5768406 DOI: 10.18632/oncotarget.23304] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 12/05/2017] [Indexed: 12/16/2022] Open
Abstract
As a promising strategy for the successful regeneration of articular cartilage, tissue engineering has received increasing recognition of control release. Two kinds of functional poly (alanine ethyl ester-co-glycine ethyl ester) phosphazene microspheres with different ratios of side-substituent groups were synthesized by emulsion technique. The rate of degradation/hydrolysis of the polymers was carefully tuned to suit the desired application for control release. For controlled delivery of growth factors, the microspheres overcame most of severe side effects linked to demineralized bone matrix (DBM) scaffolds, which had been previously optimized for cartilage regeneration. The application of scaffolds in chondrogenic differentiation was investigated by subcutaneous implantation in nude mice. In the present study, we have provided a novel microsphere-incorporating demineralized bone matrix (MS/DBM) scaffolds to release transforming growth factor-β1 or insulin-like growth factors-1. Laser confocal fluorescence staining showed that the surface of microspheres was a suitable environment for cell attachment. Histological and immunohistochemical evaluations have shown that significantly more cartilaginous extracellular matrix was detected in MS/DBM group when compared with DBM alone group (P<0.05). In addition, the biomechanical test showed that this composite scaffold exhibited favorable mechanical strength as a delivery platform. In conclusion, we demonstrated that MS/DBM scaffolds was sufficient to support stem bone marrow-derived mesenchymal stem cells chondrogenesis and neo-cartilage formation.
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Affiliation(s)
- Bo Ren
- Institute of Sports Medicine, Peking University Third Hospital, Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
| | - Xiaoqing Hu
- Institute of Sports Medicine, Peking University Third Hospital, Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
| | - Jin Cheng
- Institute of Sports Medicine, Peking University Third Hospital, Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
| | - Zhaohui Huang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Pengfei Wei
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Weili Shi
- Institute of Sports Medicine, Peking University Third Hospital, Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
| | - Peng Yang
- Institute of Sports Medicine, Peking University Third Hospital, Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
| | - Jiying Zhang
- Institute of Sports Medicine, Peking University Third Hospital, Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
| | - Xiaoning Duan
- Institute of Sports Medicine, Peking University Third Hospital, Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yingfang Ao
- Institute of Sports Medicine, Peking University Third Hospital, Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
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Abstract
Purpose of Review There is no consensus on the best technology to be employed for tracheal replacement. One particularly promising approach is based upon tissue engineering and involves applying autologous cells to transplantable scaffolds. Here, we present the reported pre-clinical and clinical data exploring the various options for achieving such seeding. Recent Findings Various cell combinations, delivery strategies, and outcome measures are described. Mesenchymal stem cells (MSCs) are the most widely employed cell type in tracheal bioengineering. Airway epithelial cell luminal seeding is also widely employed, alone or in combination with other cell types. Combinations have thus far shown the greatest promise. Chondrocytes may improve mechanical outcomes in pre-clinical models, but have not been clinically tested. Rapid or pre-vascularization of scaffolds is an important consideration. Overall, there are few published objective measures of post-seeding cell viability, survival, or overall efficacy. Summary There is no clear consensus on the optimal cell-scaffold combination and mechanisms for seeding. Systematic in vivo work is required to assess differences between tracheal grafts seeded with combinations of clinically deliverable cell types using objective outcome measures, including those for functionality and host immune response. Electronic supplementary material The online version of this article (10.1007/s40778-017-0108-2) contains supplementary material, which is available to authorized users.
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Mouser VHM, Levato R, Bonassar LJ, D’Lima DD, Grande DA, Klein TJ, Saris DBF, Zenobi-Wong M, Gawlitta D, Malda J. Three-Dimensional Bioprinting and Its Potential in the Field of Articular Cartilage Regeneration. Cartilage 2017; 8:327-340. [PMID: 28934880 PMCID: PMC5613889 DOI: 10.1177/1947603516665445] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Three-dimensional (3D) bioprinting techniques can be used for the fabrication of personalized, regenerative constructs for tissue repair. The current article provides insight into the potential and opportunities of 3D bioprinting for the fabrication of cartilage regenerative constructs. Although 3D printing is already used in the orthopedic clinic, the shift toward 3D bioprinting has not yet occurred. We believe that this shift will provide an important step forward in the field of cartilage regeneration. Three-dimensional bioprinting techniques allow incorporation of cells and biological cues during the manufacturing process, to generate biologically active implants. The outer shape of the construct can be personalized based on clinical images of the patient's defect. Additionally, by printing with multiple bio-inks, osteochondral or zonally organized constructs can be generated. Relevant mechanical properties can be obtained by hybrid printing with thermoplastic polymers and hydrogels, as well as by the incorporation of electrospun meshes in hydrogels. Finally, bioprinting techniques contribute to the automation of the implant production process, reducing the infection risk. To prompt the shift from nonliving implants toward living 3D bioprinted cartilage constructs in the clinic, some challenges need to be addressed. The bio-inks and required cartilage construct architecture need to be further optimized. The bio-ink and printing process need to meet the sterility requirements for implantation. Finally, standards are essential to ensure a reproducible quality of the 3D printed constructs. Once these challenges are addressed, 3D bioprinted living articular cartilage implants may find their way into daily clinical practice.
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Affiliation(s)
- Vivian H. M. Mouser
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Riccardo Levato
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Darryl D. D’Lima
- Shiley Center for Orthopaedic Research, Scripps Health, La Jolla, CA, USA
| | - Daniel A. Grande
- Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Northwell Health System, Manhasset, NY, USA
| | - Travis J. Klein
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Daniel B. F. Saris
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Debby Gawlitta
- Department of Oral and Maxillofacial Surgery & Special Dental Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jos Malda
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
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Yang Q, Teng BH, Wang LN, Li K, Xu C, Ma XL, Zhang Y, Kong DL, Wang LY, Zhao YH. Silk fibroin/cartilage extracellular matrix scaffolds with sequential delivery of TGF-β3 for chondrogenic differentiation of adipose-derived stem cells. Int J Nanomedicine 2017; 12:6721-6733. [PMID: 28932116 PMCID: PMC5600265 DOI: 10.2147/ijn.s141888] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A 3-D scaffold that simulates the microenvironment in vivo for regenerating cartilage is ideal. In this study, we combined silk fibroin and decellularized cartilage extracellular matrix by temperature gradient-guided thermal-induced phase separation to produce composite scaffolds (S/D). Resulting scaffolds had remarkable mechanical properties and biomimeticstructure, for a suitable substrate for attachment and proliferation of adipose-derived stem cells (ADSCs). Moreover, transforming growth factor β3 (TGF-β3) loaded on scaffolds showed a controlled release profile and enhanced the chondrogenic differentiation of ADSCs during the 28-day culture. The S/D scaffold itself can provide a sustained release system without the introduction of other controlled release media, which has potential for commercial and clinical applications. The results of toluidine blue, Safranin O, and immunohistochemical staining and analysis of collagen II expression showed maintenance of a chondrogenic phenotype in all scaffolds after 28-day culture. The most obvious phenomenon was with the addition of TGF-β3. S/D composite scaffolds with sequential delivery of TGF-β3 may mimic the regenerative microenvironment to enhance the chondrogenic differentiation of ADSCs in vitro.
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Affiliation(s)
- Qiang Yang
- Department of Spine Surgery, Tianjin Hospital, Tianjin, People's Republic of China
| | - Bin-Hong Teng
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin, People's Republic of China
| | - Li-Na Wang
- The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - Kun Li
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin, People's Republic of China
| | - Chen Xu
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin, People's Republic of China
| | - Xin-Long Ma
- Department of Spine Surgery, Tianjin Hospital, Tianjin, People's Republic of China
| | - Yang Zhang
- Department of Spine Surgery, Tianjin Hospital, Tianjin, People's Republic of China
| | - De-Ling Kong
- The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - Lian-Yong Wang
- The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - Yan-Hong Zhao
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin, People's Republic of China
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Hellings IR, Dolvik NI, Ekman S, Olstad K. Cartilage canals in the distal intermediate ridge of the tibia of fetuses and foals are surrounded by different types of collagen. J Anat 2017. [PMID: 28620929 PMCID: PMC5603784 DOI: 10.1111/joa.12650] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Some epiphyseal growth cartilage canals are surrounded by a ring of hypereosinophilic matrix consisting of collagen type I. Absence of the collagen type I ring may predispose canal vessels to failure and osteochondrosis, which can lead to fragments in joints (osteochondrosis dissecans). It is not known whether the ring develops in response to programming or biomechanical force. The distribution that may reveal the function of the ring has only been described in the distal femur of a limited number of foals. It is also not known which cells are responsible for producing the collagen ring. The aims of the current study were to examine fetuses and foals to infer whether the ring forms in response to biomechanical force or programming, to describe distribution and to investigate which cell type produces the ring. The material consisted of 46 fetuses and foals from 293 days of gestation to 142 days old, of both sexes and different breeds, divided into three groups, designated the naïve group up to and including the day of birth, the adapting group from 2 days up to and including 14 days old, and the loaded group from 15 days and older. The distal tibia was sawn into parasagittal slabs and the cranial half of the central slab from the intermediate ridge was examined by light microscopy and immunohistochemical staining for collagen type I. Presence, completeness and location of the collagen ring was compared, as was the quantity of perivascular mesenchymal cells. An eosinophilic ring present on HE-stained sections was seen in every single fetus and foal examined, which corresponded to collagen type I in immunostained sections. A higher proportion of cartilage canals were surrounded by an eosinophilic ring in the naïve and adapting groups at 73 and 76%, respectively, compared with the loaded group at 51%. When considering only patent canals, the proportion of canals with an eosinophilic ring was higher in the adapting and loaded than the naïve group of foals. The ring was present around 90 and 81% of patent canals in the deep and middle layers, respectively, compared with 58% in the superficial layer, and the ring was more often complete around deep compared with superficial canals. The ring was absent or partial around chondrifying canals. When an eosinophilic ring was present around patent canals, it was more common for the canal to contain one or more layers of perivascular mesenchymal cells rather than few to no layers. It was also more common for the collagen ring to be more complete around canals that contained many as opposed to few mesenchymal cells. In conclusion, the proportion of cartilage canals that had an eosinophilic ring was similar in all three groups of fetuses and foals, indicating that the presence of the collagen ring was mostly programmed, although some adaptation was evident. The ring was more often present around deep, compared with superficial canals, indicating a role in preparation for ossification. The collagen ring appeared to be produced by perivascular mesenchymal cells.
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Affiliation(s)
- Ingunn Risnes Hellings
- Faculty of Veterinary Medicine and Biosciences, Department of Companion Animal Clinical Sciences, Equine Section, Norwegian University of Life Sciences, Oslo, Norway
| | - Nils Ivar Dolvik
- Faculty of Veterinary Medicine and Biosciences, Department of Companion Animal Clinical Sciences, Equine Section, Norwegian University of Life Sciences, Oslo, Norway
| | - Stina Ekman
- Department of Biomedical Sciences and Veterinary Public Health, Section of Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Kristin Olstad
- Faculty of Veterinary Medicine and Biosciences, Department of Companion Animal Clinical Sciences, Equine Section, Norwegian University of Life Sciences, Oslo, Norway
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65
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Choi JR, Yong KW, Choi JY. Effects of mechanical loading on human mesenchymal stem cells for cartilage tissue engineering. J Cell Physiol 2017; 233:1913-1928. [PMID: 28542924 DOI: 10.1002/jcp.26018] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 05/18/2017] [Indexed: 12/22/2022]
Abstract
Today, articular cartilage damage is a major health problem, affecting people of all ages. The existing conventional articular cartilage repair techniques, such as autologous chondrocyte implantation (ACI), microfracture, and mosaicplasty, have many shortcomings which negatively affect their clinical outcomes. Therefore, it is essential to develop an alternative and efficient articular repair technique that can address those shortcomings. Cartilage tissue engineering, which aims to create a tissue-engineered cartilage derived from human mesenchymal stem cells (MSCs), shows great promise for improving articular cartilage defect therapy. However, the use of tissue-engineered cartilage for the clinical therapy of articular cartilage defect still remains challenging. Despite the importance of mechanical loading to create a functional cartilage has been well demonstrated, the specific type of mechanical loading and its optimal loading regime is still under investigation. This review summarizes the most recent advances in the effects of mechanical loading on human MSCs. First, the existing conventional articular repair techniques and their shortcomings are highlighted. The important parameters for the evaluation of the tissue-engineered cartilage, including chondrogenic and hypertrophic differentiation of human MSCs are briefly discussed. The influence of mechanical loading on human MSCs is subsequently reviewed and the possible mechanotransduction signaling is highlighted. The development of non-hypertrophic chondrogenesis in response to the changing mechanical microenvironment will aid in the establishment of a tissue-engineered cartilage for efficient articular cartilage repair.
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Affiliation(s)
- Jane Ru Choi
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia.,UBC Engineering Lab, University of British Columbia, Vancouver, Canada
| | - Kar Wey Yong
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia.,Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, Calgary, Canada
| | - Jean Yu Choi
- Faculty of Medicine, University of Dundee, Dundee, United Kingdom
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66
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Rabbani M, Tafazzoli-Shadpour M, Shokrgozar MA, Janmaleki M, Teymoori M. Cyclic Stretch Effects on Adipose-Derived Stem Cell Stiffness, Morphology and Smooth Muscle Cell Gene Expression. Tissue Eng Regen Med 2017; 14:279-286. [PMID: 30603484 DOI: 10.1007/s13770-017-0033-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 07/15/2016] [Accepted: 07/27/2016] [Indexed: 01/22/2023] Open
Abstract
Recent investigations consider adipose-derived stem cells (ASCs) as a promising source of stem cells for clinical therapies. To obtain functional cells with enhanced cytoskeleton and aligned structure, mechanical stimuli are utilized during differentiation of stem cells to the target cells. Since function of muscle cells is associated with cytoskeleton, enhanced structure is especially essential for these cells when employed in tissue engineering. In this study by utilizing a custom-made device, effects of uniaxial tension (1Hz, 10% stretch) on cytoskeleton, cell alignment, cell elastic properties, and expression of smooth muscle cell (SMC) genes in ASCs are investigated. Due to proper availability of ASCs, results can be employed in cardiovascular engineering when production of functional SMCs in arterial reconstruction is required. Results demonstrated that cells were oriented after 24 hours of cyclic stretch with aligned pseudo-podia. Staining of actin filaments confirmed enhanced polymerization and alignment of stress fibers. Such phenomenon resulted in stiffening of cell body which was quantified by atomic force microscopy (AFM). Expression of SM α-actin and SM22 α-actin as SMC associated genes were increased after cyclic stretch while GAPDH was considered as internal control gene. Finally, it was concluded that application of cyclic stretch on ASCs assists differentiation to SMC and enhances functionality of cells.
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Affiliation(s)
- Mohsen Rabbani
- 1Department of Biomedical Engineering, Faculty of Engineering, University of Isfahan, Daneshgah St., Azadi sq., Isfahan, 8174673441 Iran
| | - Mohammad Tafazzoli-Shadpour
- 2Faculty of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Hafez st., Tehran, 158754413 Iran
| | - Mohammad Ali Shokrgozar
- 3National Cell Bank of Iran, Pasteur Institute of Iran, Farvardin 12st st., Tehran, 13164 Iran
| | - Mohsen Janmaleki
- 4Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Taleghani Hospital, Parvaneh St., Velenjak, Tehran, 1985717444 Iran
| | - Morteza Teymoori
- 1Department of Biomedical Engineering, Faculty of Engineering, University of Isfahan, Daneshgah St., Azadi sq., Isfahan, 8174673441 Iran
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Injectable dextran hydrogels fabricated by metal-free click chemistry for cartilage tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 73:21-30. [DOI: 10.1016/j.msec.2016.12.053] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 11/07/2016] [Accepted: 12/11/2016] [Indexed: 11/18/2022]
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68
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Wang M, Yuan Z, Ma N, Hao C, Guo W, Zou G, Zhang Y, Chen M, Gao S, Peng J, Wang A, Wang Y, Sui X, Xu W, Lu S, Liu S, Guo Q. Advances and Prospects in Stem Cells for Cartilage Regeneration. Stem Cells Int 2017; 2017:4130607. [PMID: 28246531 PMCID: PMC5299204 DOI: 10.1155/2017/4130607] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 11/24/2016] [Accepted: 12/26/2016] [Indexed: 12/16/2022] Open
Abstract
The histological features of cartilage call attention to the fact that cartilage has a little capacity to repair itself owing to the lack of a blood supply, nerves, or lymphangion. Stem cells have emerged as a promising option in the field of cartilage tissue engineering and regenerative medicine and could lead to cartilage repair. Much research has examined cartilage regeneration utilizing stem cells. However, both the potential and the limitations of this procedure remain controversial. This review presents a summary of emerging trends with regard to using stem cells in cartilage tissue engineering and regenerative medicine. In particular, it focuses on the characterization of cartilage stem cells, the chondrogenic differentiation of stem cells, and the various strategies and approaches involving stem cells that have been used in cartilage repair and clinical studies. Based on the research into chondrocyte and stem cell technologies, this review discusses the damage and repair of cartilage and the clinical application of stem cells, with a view to increasing our systematic understanding of the application of stem cells in cartilage regeneration; additionally, several advanced strategies for cartilage repair are discussed.
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Affiliation(s)
- Mingjie Wang
- Institute of Orthopaedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma & War Injuries, PLA, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Zhiguo Yuan
- Institute of Orthopaedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma & War Injuries, PLA, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Ning Ma
- Institute of Orthopaedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma & War Injuries, PLA, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Chunxiang Hao
- Anesthesiology Department, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Weimin Guo
- Institute of Orthopaedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma & War Injuries, PLA, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Gengyi Zou
- Medical College, Nankai University, Tianjin, 300071, China
| | - Yu Zhang
- Institute of Orthopaedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma & War Injuries, PLA, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Mingxue Chen
- Institute of Orthopaedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma & War Injuries, PLA, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Shuang Gao
- Center for Biomedical Material and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Jiang Peng
- Institute of Orthopaedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma & War Injuries, PLA, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Aiyuan Wang
- Institute of Orthopaedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma & War Injuries, PLA, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Yu Wang
- Institute of Orthopaedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma & War Injuries, PLA, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Xiang Sui
- Institute of Orthopaedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma & War Injuries, PLA, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Wenjing Xu
- Institute of Orthopaedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma & War Injuries, PLA, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Shibi Lu
- Institute of Orthopaedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma & War Injuries, PLA, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Shuyun Liu
- Institute of Orthopaedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma & War Injuries, PLA, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Quanyi Guo
- Institute of Orthopaedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma & War Injuries, PLA, 28 Fuxing Road, Haidian District, Beijing 100853, China
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69
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Sanjurjo-Rodríguez C, Castro-Viñuelas R, Hermida-Gómez T, Fuentes-Boquete IM, de Toro FJ, Blanco FJ, Díaz-Prado SM. Human Cartilage Engineering in an In Vitro Repair Model Using Collagen Scaffolds and Mesenchymal Stromal Cells. Int J Med Sci 2017; 14:1257-1262. [PMID: 29104482 PMCID: PMC5666559 DOI: 10.7150/ijms.19835] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 08/07/2017] [Indexed: 01/09/2023] Open
Abstract
The purpose of this study was to investigate cartilage repair of in vitro lesion models using human bone marrow mesenchymal stromal cells (hBMSCs) with different collagen (Col) scaffolds. Lesions were made in human cartilage biopsies. Injured samples were pre-treated with interleukin 1β (IL1β) for 24 h; also, samples were not pre-treated. hBMSCs were seeded on different types of collagen scaffolds. The resulting constructs were placed into the lesions, and the biopsies were cultured for 2 months in chondrogenic medium. Using the modified ICRSII scale, neotissues from the different scaffolds showed ICRS II overall assessment scores ranging from 50% (fibrocartilage) to 100% (hyaline cartilage), except for the Col I +Col II +HS constructs (fibrocartilage/hyaline cartilage, 73%). Data showed that hBMSCs cultured only on Col I +Col II +HS scaffolds displayed a chondrocyte-like morphology and cartilage-like matrix close to native cartilage. Furthermore, IL1β pre-treated biopsies decreased capacity for repair by hBMSCs and decreased levels of chondrogenic phenotype of human cartilage lesions.
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Affiliation(s)
- Clara Sanjurjo-Rodríguez
- Cell Therapy and Regenerative Medicine Unit, Rheumatology Group, Institute of Biomedical Research of A Coruña (INIBIC), University Hospital Complex A Coruña (CHUAC), Galician Health Service (SERGAS), Department of Medicine, Faculty of Health Sciences, University of A Coruña, A Coruña, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
| | - Rocío Castro-Viñuelas
- Cell Therapy and Regenerative Medicine Unit, Rheumatology Group, Institute of Biomedical Research of A Coruña (INIBIC), University Hospital Complex A Coruña (CHUAC), Galician Health Service (SERGAS), Department of Medicine, Faculty of Health Sciences, University of A Coruña, A Coruña, Spain.,Tisular Bioengineering and Cell Therapy Unit (GBTTC-CHUAC), Rheumatology group, Institute of Biomedical Research of A Coruña (INIBIC), University Hospital Complex A Coruña (CHUAC), Galician Health Service (SERGAS), A Coruña, Spain
| | - Tamara Hermida-Gómez
- Tisular Bioengineering and Cell Therapy Unit (GBTTC-CHUAC), Rheumatology group, Institute of Biomedical Research of A Coruña (INIBIC), University Hospital Complex A Coruña (CHUAC), Galician Health Service (SERGAS), A Coruña, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
| | - Isaac Manuel Fuentes-Boquete
- Cell Therapy and Regenerative Medicine Unit, Rheumatology Group, Institute of Biomedical Research of A Coruña (INIBIC), University Hospital Complex A Coruña (CHUAC), Galician Health Service (SERGAS), Department of Medicine, Faculty of Health Sciences, University of A Coruña, A Coruña, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
| | - Francisco Javier de Toro
- Cell Therapy and Regenerative Medicine Unit, Rheumatology Group, Institute of Biomedical Research of A Coruña (INIBIC), University Hospital Complex A Coruña (CHUAC), Galician Health Service (SERGAS), Department of Medicine, Faculty of Health Sciences, University of A Coruña, A Coruña, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
| | - Francisco Javier Blanco
- Tisular Bioengineering and Cell Therapy Unit (GBTTC-CHUAC), Rheumatology group, Institute of Biomedical Research of A Coruña (INIBIC), University Hospital Complex A Coruña (CHUAC), Galician Health Service (SERGAS), A Coruña, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
| | - Silvia María Díaz-Prado
- Cell Therapy and Regenerative Medicine Unit, Rheumatology Group, Institute of Biomedical Research of A Coruña (INIBIC), University Hospital Complex A Coruña (CHUAC), Galician Health Service (SERGAS), Department of Medicine, Faculty of Health Sciences, University of A Coruña, A Coruña, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
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70
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Novel nanofibrous electrically conductive scaffolds based on poly(ethylene glycol)s-modified polythiophene and poly(ε-caprolactone) for tissue engineering applications. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.11.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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71
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Stoffel M, Willenberg W, Azarnoosh M, Fuhrmann-Nelles N, Zhou B, Markert B. Towards bioreactor development with physiological motion control and its applications. Med Eng Phys 2016; 39:106-112. [PMID: 27836574 DOI: 10.1016/j.medengphy.2016.10.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 09/16/2016] [Accepted: 10/23/2016] [Indexed: 10/20/2022]
Abstract
In biomedical applications bioreactors are used, which are able to apply mechanical loadings under cultivation conditions on biological tissues. However, complex mechanobiological evolutions, such as the dependency between mechanical properties and cell activity, depend strongly on the applied loading conditions. This requires correct physiological movements and loadings in bioreactors. The aim of the present study is to develop bioreactors, in which native and artificial biological tissues can be cultivated under physiological conditions in knee joints and spinal motion segments. However, in such complex systems, where motions with different degrees of freedom are applied to whole body parts, it is necessary to investigate elements of joints and spinal parts separately. Consequently, two further bioreactors for investigating tendons and cartilage specimens are proposed additionally. The study is complemented by experimental and numerical examples with emphasis on medical and engineering applications, such as biomechanical properties of cartilage replacement materials, injured tendons, and intervertebral discs.
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Affiliation(s)
- Marcus Stoffel
- Institute of General Mechanics, RWTH Aachen University, Germany.
| | | | | | | | - Bei Zhou
- Institute of General Mechanics, RWTH Aachen University, Germany
| | - Bernd Markert
- Institute of General Mechanics, RWTH Aachen University, Germany
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