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Kalvand E, Bakhshandeh H, Nadri S, Habibizadeh M, Rostamizadeh K. Poly-ε-caprolactone (PCL)/poly-l-lactic acid (PLLA) nanofibers loaded by nanoparticles-containing TGF-β1 with linearly arranged transforming structure as a scaffold in cartilage tissue engineering. J Biomed Mater Res A 2023; 111:1838-1849. [PMID: 37395312 DOI: 10.1002/jbm.a.37574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 04/24/2023] [Accepted: 05/16/2023] [Indexed: 07/04/2023]
Abstract
This study aimed to present a novel three-dimensional nanocomposite scaffold using poly-ε-caprolactone (PCL), containing transforming growth factor-beta 1 (TGF-β1)-loaded chitosan-dextran nanoparticles and poly-l-lactic acid (PLLA), to make use of nanofibers and nanoparticles simultaneously. The electrospinning method fabricated a bead-free semi-aligned nanofiber composed of PLLA, PCL, and chitosan-dextran nanoparticles containing TGF-β1. A biomimetic scaffold was constructed with the desired mechanical properties, high hydrophilicity, and high porosity. Transmission electron microscopy findings showed a linear arrangement of nanoparticles along the core of fibers. Based on the results, burst release was not observed. The maximum release was achieved within 4 days, and sustained release was up to 21 days. The qRT-PCR results indicated an increase in the expression of aggrecan and collagen type Ι genes compared to the tissue culture polystyrene group. The results indicated the importance of topography and the sustained release of TGF-β1 from bifunctional scaffolds in directing the stem cell fate in cartilage tissue engineering.
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Affiliation(s)
- Elham Kalvand
- Department of Pharmaceutical Biomaterials, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
- Department of Nanobiotechnology, Pasteur Institute of Tehran, Tehran, Iran
- Department of Nanotechnology and Tissue Engineering, Stem Cell Technology Research of Tehran, Tehran, Iran
| | - Haleh Bakhshandeh
- Department of Nanobiotechnology, Pasteur Institute of Tehran, Tehran, Iran
- New Technologies Research Group, Department of Nanobiotechnology, Pasteur Institute of Iran, Tehran, Iran
| | - Samad Nadri
- Zanjan Pharmaceutical Nanotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
- Department of Medical Nanotechnology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mina Habibizadeh
- Regenerative Medicine Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Kobra Rostamizadeh
- Zanjan Pharmaceutical Nanotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
- Pharmaceutical Biomaterials Department, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
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Nahumi A, Peymani M, Asadi A, Abdolmaleki A, Panahi Y. Decellularized tracheal scaffold as a promising 3D scaffold for tissue engineering applications. Tissue Cell 2023; 85:102258. [PMID: 37918216 DOI: 10.1016/j.tice.2023.102258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 10/22/2023] [Accepted: 10/23/2023] [Indexed: 11/04/2023]
Abstract
Tissue engineering is a science that uses the combination of scaffolds, cells, and active biomolecules to make tissue in order to restore or maintain its function and improve the damaged tissue or even an organ in the laboratory. The purpose of this research was to study the characteristics and biocompatibility of decellularized sheep tracheal scaffolds and also to investigate the differentiation of Adipose-derived stem cells (AD-MSCs) into tracheal cells. After the decellularization of sheep tracheas through the detergent-enzyme method, histological evaluations, measurement of biochemical factors, measurement of DNA amount, and photographing the ultrastructure of the samples by scanning electron microscopy (SEM), they were also evaluated mechanically. Further, In order to check the viability and adhesion of stem cells to the decellularized scaffolds, adipose mesenchymal stem cells were cultured on the scaffolds, and the 3-(4,5-dimethylthiazol-2-yl)- 2,5-diphenyltetrazolium bromide (MTT) assay was performed. The expression analysis of the intended genes for the differentiation of mesenchymal stem cells into tracheal cells was evaluated by the real-time PCR method. These results show that the prepared scaffolds are an ideal model for engineering applications, have high biocompatibility, and that the tracheal scaffold provides a suitable environment for the differentiation of ADMSCs. This review provides a basis for future research on tracheal decellularization scaffolds, serves as a suitable model for organ regeneration, and paves the way for their use in clinical medicine.
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Affiliation(s)
- Aida Nahumi
- Department of Biology, Faculty of Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Maryam Peymani
- Department of Biology, Faculty of Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.
| | - Asadollah Asadi
- Department of Biology, Faculty of Sciences, University of Mohaghegh Ardabili, Ardabil, Iran.
| | - Arash Abdolmaleki
- Department of Biophysics, Faculty of Advanced Technologies, University of Mohaghegh Ardabili, Namin, Iran
| | - Yassin Panahi
- Department of Basic Medical Sciences, khoy University of Medical Sciences, Khoy, Iran
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Pušić M, Brezak M, Vukasović Barišić A, Vučković M, Kostešić P, Šećerović A, Matičić D, Ivković A, Urlić I. Morphological and Molecular Evaluation of the Tissue Repair following Nasal Septum Biopsy in a Sheep Model. Cartilage 2021; 13:521S-529S. [PMID: 34541930 PMCID: PMC8804720 DOI: 10.1177/19476035211046040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVE Nasal septal pathologies requiring surgical intervention are common in the population. Additionally, nasal chondrocytes are becoming an important cell source in cartilage tissue engineering strategies for the repair of articular cartilage lesions. These procedures damage the nasal septal cartilage whose healing potential is limited due to its avascular, aneural, and alymphatic nature. Despite the high incidence of various surgical interventions that affect septum cartilage, limited nasal cartilage repair characterizations have been performed to date. METHODS To evaluate the healing of the nasal septum cartilage perforation, a septal biopsy was performed in 14 sheep. Two and 6 months later, the tissue formed on the place of perforation was explanted and compared with the native tissue. Tissue morphology, protein and gene expression of explanted tissue was determined using histological, immunohistochemical and real-time quantitative polymerase chain reaction analysis. RESULTS Tissue formed on the defect site, 2 and 6 months after the biopsy was characterized as mostly connective tissue with the presence of fibroblastic cells. This newly formed tissue contained no glycosaminoglycans and collagen type II but was positively stained for collagen type I. Cartilage-specific genes COL2, AGG, and COMP were significantly decreased in 2- and 6-month samples compared with the native nasal cartilage. Levels of COL1, COL4, and CRABP1 genes specific for perichondrium and connective tissue were higher in both test group samples in comparison with native cartilage. CONCLUSIONS Newly formed tissue was not cartilage but rather fibrous tissue suggesting the role of perichondrium and mucosa in tissue repair after nasal septum injury.
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Affiliation(s)
- Maja Pušić
- Department of Biology, Faculty of
Science, University of Zagreb, Zagreb, Croatia
| | - Matea Brezak
- Department of Biology, Faculty of
Science, University of Zagreb, Zagreb, Croatia
| | | | - Mirta Vučković
- Clinic for Surgery, Ophthalmology and
Orthopaedics, Veterinary Faculty, University of Zagreb, Zagreb, Croatia
| | - Petar Kostešić
- Clinic for Surgery, Ophthalmology and
Orthopaedics, Veterinary Faculty, University of Zagreb, Zagreb, Croatia
| | - Amra Šećerović
- Department of Histology and Embryology,
School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Dražen Matičić
- Clinic for Surgery, Ophthalmology and
Orthopaedics, Veterinary Faculty, University of Zagreb, Zagreb, Croatia
| | - Alan Ivković
- Department of Histology and Embryology,
School of Medicine, University of Zagreb, Zagreb, Croatia,Department of Orthopaedic Surgery,
University Hospital Sveti Duh, Zagreb, Croatia,University of Applied Health Sciences,
Zagreb, Croatia
| | - Inga Urlić
- Department of Biology, Faculty of
Science, University of Zagreb, Zagreb, Croatia,Inga Urlić, Faculty of Science, University
of Zagreb, Horvatovac 102a, Zagreb, 10000, Croatia.
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Gan QF, Choy KW, Foo CN, Leong PP, Cheong SK. Incorporating insulin growth Factor‐1 into regenerative and personalised medicine for musculoskeletal disorders: A systematic review. J Tissue Eng Regen Med 2021. [DOI: 10.1002/term.3192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Quan Fu Gan
- Pre‐Clinical Sciences Department Faculty of Medicine and Health Sciences UTAR Sg Long Campus Selangor Malaysia
| | - Ker Woon Choy
- Department of Anatomy Faculty of Medicine Universiti Teknologi MARA Sungai Buloh Selangor Malaysia
| | - Chai Nien Foo
- Population Medicine Department Faculty of Medicine and Health Sciences UTAR Sg Long Campus Selangor Malaysia
| | - Pooi Pooi Leong
- Pre‐Clinical Sciences Department Faculty of Medicine and Health Sciences UTAR Sg Long Campus Selangor Malaysia
| | - Soon Keng Cheong
- Medicine Department Faculty of Medicine and Health Sciences UTAR Sg Long Campus Selangor Malaysia
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Xie A, Peng Y, Yao Z, Lu L, Ni T. Effect of a subset of adipose-derived stem cells isolated with liposome magnetic beads to promote cartilage repair. J Cell Mol Med 2021; 25:4204-4215. [PMID: 33768729 PMCID: PMC8093962 DOI: 10.1111/jcmm.16470] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 03/05/2021] [Indexed: 12/20/2022] Open
Abstract
This study aimed to investigate the ability of CD146+ subset of ADSCs to repair cartilage defects. In this study, we prepared CD146+ liposome magnetic beads (CD146+LMB) to isolate CD146+ADSCs. The cells were induced for chondrogenic differentiation and verified by cartilage‐specific mRNA and protein expression. Then a mouse model of cartilage defect was constructed and treated by filling the induced cartilage cells into the damaged joint, to evaluate the function of such cells in the cartilage microenvironment. Our results demonstrated that the CD146+LMBs we prepared were uniform, small and highly stable, and cell experiments showed that the CD146+LMB has low cytotoxicity to the ADSCs. ADSCs isolated with CD146+LMB were all CD146+, CD105+, CD166+ and CD73+. After chondrogenic induction, the cells showed significantly increased expression of cartilage markers Sox9, collagen Ⅱ and aggrecan at protein level and significantly increased Sox9, collagen Ⅱ and aggrecan at mRNA level, and the protein expression and mRNA expression of CD146+ADSCs group were higher than those of ADSCs group. The CD146+ADSCs group showed superior tissue repair ability than the ADSCs group and blank control group in the animal experiment, as judged by gross observation, histological observation and histological scoring. The above results proved that CD146+LMB can successfully isolate the CD146+ADSCs, and after chondrogenic induction, these cells successfully promoted repair of articular cartilage defects, which may be a new direction of tissue engineering.
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Affiliation(s)
- Aiguo Xie
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yinbo Peng
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zuochao Yao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lin Lu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tao Ni
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Madry H, Venkatesan JK, Carballo-Pedrares N, Rey-Rico A, Cucchiarini M. Scaffold-Mediated Gene Delivery for Osteochondral Repair. Pharmaceutics 2020; 12:pharmaceutics12100930. [PMID: 33003607 PMCID: PMC7601511 DOI: 10.3390/pharmaceutics12100930] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/25/2020] [Accepted: 09/28/2020] [Indexed: 12/20/2022] Open
Abstract
Osteochondral defects involve both the articular cartilage and the underlying subchondral bone. If left untreated, they may lead to osteoarthritis. Advanced biomaterial-guided delivery of gene vectors has recently emerged as an attractive therapeutic concept for osteochondral repair. The goal of this review is to provide an overview of the variety of biomaterials employed as nonviral or viral gene carriers for osteochondral repair approaches both in vitro and in vivo, including hydrogels, solid scaffolds, and hybrid materials. The data show that a site-specific delivery of therapeutic gene vectors in the context of acellular or cellular strategies allows for a spatial and temporal control of osteochondral neotissue composition in vitro. In vivo, implantation of acellular hydrogels loaded with nonviral or viral vectors has been reported to significantly improve osteochondral repair in translational defect models. These advances support the concept of scaffold-mediated gene delivery for osteochondral repair.
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Affiliation(s)
- Henning Madry
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, D-66421 Homburg, Germany; (H.M.); (J.K.V.)
| | - Jagadeesh Kumar Venkatesan
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, D-66421 Homburg, Germany; (H.M.); (J.K.V.)
| | - Natalia Carballo-Pedrares
- Cell Therapy and Regenerative Medicine Unit, Centro de Investigacións Científicas Avanzadas (CICA), Universidade da Coruña, S-15071 A Coruña, Spain; (N.C.-P.); (A.R.-R.)
| | - Ana Rey-Rico
- Cell Therapy and Regenerative Medicine Unit, Centro de Investigacións Científicas Avanzadas (CICA), Universidade da Coruña, S-15071 A Coruña, Spain; (N.C.-P.); (A.R.-R.)
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, D-66421 Homburg, Germany; (H.M.); (J.K.V.)
- Correspondence: ; Tel.: +49-684-1162-4987; Fax: +49-684-1162-4988
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Song H, Park KH. Regulation and function of SOX9 during cartilage development and regeneration. Semin Cancer Biol 2020; 67:12-23. [PMID: 32380234 DOI: 10.1016/j.semcancer.2020.04.008] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 09/23/2019] [Accepted: 04/26/2020] [Indexed: 12/21/2022]
Abstract
Chondrogenesis is a highly coordinated event in embryo development, adult homeostasis, and repair of the vertebrate cartilage. Fate decisions and differentiation of chondrocytes accompany differential expression of genes critical for each step of chondrogenesis. SOX9 is a master transcription factor that participates in sequential events in chondrogenesis by regulating a series of downstream factors in a stage-specific manner. SOX9 either works alone or in combination with downstream SOX transcription factors, SOX5 and SOX6 as chondrogenic SOX Trio. SOX9 is reduced in the articular cartilage of patients with osteoarthritis while highly maintained during tumorigenesis of cartilage and bone. Gene therapy using viral and non-viral vectors accompanied by tissue engineering (scaffolds) is a promising tool to regenerate impaired cartilage. Delivery of SOX9 or chondrogenic SOX Trio into cells produces efficient therapeutic effects on chondrogenesis and this event is facilitated by scaffolds. Non-viral vector-guided delivery systems encapsulated or loaded in mechanically stable solid scaffolds are useful for the regeneration of articular cartilage. Here we review major milestones and most recent studies focusing on regulation and function of chondrogenic SOX Trio, during chondrogenesis and cartilage regeneration, and on the development of advanced technologies in gene delivery with tissue engineering to improve efficiency of cartilage repair process.
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Affiliation(s)
- Haengseok Song
- Department of Biomedical Science, CHA University, Seongnam, Republic of Korea
| | - Keun-Hong Park
- Department of Biomedical Science, CHA University, Seongnam, Republic of Korea.
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A Bioactive Cartilage Graft of IGF1-Transduced Adipose Mesenchymal Stem Cells Embedded in an Alginate/Bovine Cartilage Matrix Tridimensional Scaffold. Stem Cells Int 2019; 2019:9792369. [PMID: 31149016 PMCID: PMC6501174 DOI: 10.1155/2019/9792369] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 01/18/2019] [Accepted: 02/19/2019] [Indexed: 01/29/2023] Open
Abstract
Articular cartilage injuries remain as a therapeutic challenge due to the limited regeneration potential of this tissue. Cartilage engineering grafts combining chondrogenic cells, scaffold materials, and microenvironmental factors are emerging as promissory alternatives. The design of an adequate scaffold resembling the physicochemical features of natural cartilage and able to support chondrogenesis in the implants is a crucial topic to solve. This study reports the development of an implant constructed with IGF1-transduced adipose-derived mesenchymal stem cells (immunophenotypes: CD105+, CD90+, CD73+, CD14−, and CD34−) embedded in a scaffold composed of a mix of alginate/milled bovine decellularized knee material which was cultivated in vitro for 28 days (3CI). Histological analyses demonstrated the distribution into isogenous groups of chondrocytes surrounded by a de novo dense extracellular matrix with balanced proportions of collagens II and I and high amounts of sulfated proteoglycans which also evidenced adequate cell proliferation and differentiation. This graft also shoved mechanical properties resembling the natural knee cartilage. A modified Bern/O'Driscoll scale showed that the 3CI implants had a significantly higher score than the 2CI implants lacking cells transduced with IGF1 (16/18 vs. 14/18), representing high-quality engineering cartilage suitable for in vivo tests. This study suggests that this graft resembles several features of typical hyaline cartilage and will be promissory for preclinical studies for cartilage regeneration.
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Graceffa V, Vinatier C, Guicheux J, Evans CH, Stoddart M, Alini M, Zeugolis DI. State of art and limitations in genetic engineering to induce stable chondrogenic phenotype. Biotechnol Adv 2018; 36:1855-1869. [DOI: 10.1016/j.biotechadv.2018.07.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 05/16/2018] [Accepted: 07/12/2018] [Indexed: 12/18/2022]
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10
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Music E, Futrega K, Doran MR. Sheep as a model for evaluating mesenchymal stem/stromal cell (MSC)-based chondral defect repair. Osteoarthritis Cartilage 2018; 26:730-740. [PMID: 29580978 DOI: 10.1016/j.joca.2018.03.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 02/05/2018] [Accepted: 03/19/2018] [Indexed: 02/02/2023]
Abstract
Osteoarthritis results from the degradation of articular cartilage and is one of the leading global causes of pain and immobility. Cartilage has a limited capacity for self-repair. While repair can be enhanced through surgical intervention, current methods often generate inferior fibrocartilage and repair is transient. The development of tissue engineering strategies to improve repair outcomes is an active area of research. While small animal models such as rodents and rabbits are often used in early pre-clinical work, larger animals that better recapitulate the anatomy and loading of the human joint are required for late-stage preclinical evaluation. Because of their physiological similarities to humans, and low cost relative to other large animals, sheep are routinely used in orthopedic research, including cartilage repair studies. In recent years, there has been considerable research investment into the development of cartilage repair strategies that utilize mesenchymal stem/stromal cells (MSC). In contrast to autologous chondrocytes derived from biopsies of articular cartilage, MSC offer some benefits including greater expansion capacity and elimination of the risk of morbidity at the cartilage biopsy site. The disadvantages of MSC are related to the challenges of inducing and maintaining a stable chondrocyte-like cell population capable of generating hyaline cartilage. Ovine MSC (oMSC) biology and their utility in sheep cartilage repair models have not been reviewed. Herein, we review the biological properties of MSC derived from sheep tissues, and the use of these cells to study articular cartilage repair in this large animal model.
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Affiliation(s)
- E Music
- Queensland University of Technology, Institute of Health and Biomedical Innovation, Brisbane, QLD, Australia; Translational Research Institute, Brisbane, QLD, Australia.
| | - K Futrega
- Queensland University of Technology, Institute of Health and Biomedical Innovation, Brisbane, QLD, Australia; Translational Research Institute, Brisbane, QLD, Australia.
| | - M R Doran
- Queensland University of Technology, Institute of Health and Biomedical Innovation, Brisbane, QLD, Australia; Translational Research Institute, Brisbane, QLD, Australia; Mater Research Institute - University of Queensland, Brisbane, QLD, Australia; Australian National Centre for the Public Awareness of Science, Australian National University, Canberra, ACT, Australia.
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Tissue Engineered Bone Differentiated From Human Adipose Derived Stem Cells Inhibit Posterolateral Fusion in an Athymic Rat Model. Spine (Phila Pa 1976) 2018; 43:533-541. [PMID: 28816826 PMCID: PMC5812848 DOI: 10.1097/brs.0000000000002384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Biological augmentation spinal arthrodesis trial in athymic rats. OBJECTIVE To assess the efficacy of tissue-engineered bone to promote L4-L5 intertransverse process fusion in an athymic rat model. SUMMARY OF BACKGROUND DATA Each year in the United States, over 400,000 spinal fusion surgeries are performed requiring bone graft. The current gold standard for posterolateral lumbar fusion is autogenous iliac crest bone graft (ICBG), but the harvesting of ICBG is associated with increased operative time and significant complications. This being the case, an alternative cost-effective bone graft source is needed. METHODS Bovine bone cores were sterilized and decellularized for scaffold production. Human adipose derived mesenchymal stem cells (ADSC) were obtained and verified by tridifferentiation testing and seeded onto dried scaffolds. The seeded cores were cultured for 5 weeks in culture medium designed to mimic endochondral ossification and produce hypertrophic chondrocytes. Single-level intertransverse process fusions were performed at the L4-L5 level of 31 athymic rats. Fifteen rats were implanted with the hypertrophic chondrocyte seeded scaffold and 16 had scaffold alone. Half of the study rats were sacrificed at 3 weeks and the other half at 6 weeks. Spinal fusion was assessed using 2D and 3D micro computed tomography (μCT) analysis and tissue histology. RESULTS At 3 weeks, none of the tissue engineered rats had partial or complete fusion, whereas 62.5% of the decellularized rats fused and another 12.5% had partial fusions (P = 0.013). At 6 weeks, none of the tissue engineered rats fused and 50% had partial fusions, whereas 87.5% of the decellularized rats fused (P = 0.002). CONCLUSION Tissue engineered bone composed of hypertrophic chondrocytes inhibits posterolateral fusion in an athymic rat model and therefore does not represent a promising cost-effective bone graft substitute. LEVEL OF EVIDENCE N/A.
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Bellavia D, Veronesi F, Carina V, Costa V, Raimondi L, De Luca A, Alessandro R, Fini M, Giavaresi G. Gene therapy for chondral and osteochondral regeneration: is the future now? Cell Mol Life Sci 2018; 75:649-667. [PMID: 28864934 PMCID: PMC11105387 DOI: 10.1007/s00018-017-2637-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 08/28/2017] [Indexed: 12/26/2022]
Abstract
Gene therapy might represent a promising strategy for chondral and osteochondral defects repair by balancing the management of temporary joint mechanical incompetence with altered metabolic and inflammatory homeostasis. This review analysed preclinical and clinical studies on gene therapy for the repair of articular cartilage defects performed over the last 10 years, focussing on expression vectors (non-viral and viral), type of genes delivered and gene therapy procedures (direct or indirect). Plasmids (non-viral expression vectors) and adenovirus (viral vectors) were the most employed vectors in preclinical studies. Genes delivered encoded mainly for growth factors, followed by transcription factors, anti-inflammatory cytokines and, less frequently, by cell signalling proteins, matrix proteins and receptors. Direct injection of the expression vector was used less than indirect injection of cells, with or without scaffolds, transduced with genes of interest and then implanted into the lesion site. Clinical trials (phases I, II or III) on safety, biological activity, efficacy, toxicity or bio-distribution employed adenovirus viral vectors to deliver growth factors or anti-inflammatory cytokines, for the treatment of osteoarthritis or degenerative arthritis, and tumour necrosis factor receptor or interferon for the treatment of inflammatory arthritis.
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Affiliation(s)
- Daniele Bellavia
- Rizzoli Orthopedic Institute, Bologna, Italy.
- Innovative Technology Platforms for Tissue Engineering, Theranostic and Oncology, Rizzoli Orthopaedic Institute, Via Divisi 83, 90133, Palermo, Italy.
| | - F Veronesi
- Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - V Carina
- Rizzoli Orthopedic Institute, Bologna, Italy
- Innovative Technology Platforms for Tissue Engineering, Theranostic and Oncology, Rizzoli Orthopaedic Institute, Via Divisi 83, 90133, Palermo, Italy
| | - V Costa
- Rizzoli Orthopedic Institute, Bologna, Italy
- Innovative Technology Platforms for Tissue Engineering, Theranostic and Oncology, Rizzoli Orthopaedic Institute, Via Divisi 83, 90133, Palermo, Italy
| | - L Raimondi
- Rizzoli Orthopedic Institute, Bologna, Italy
- Innovative Technology Platforms for Tissue Engineering, Theranostic and Oncology, Rizzoli Orthopaedic Institute, Via Divisi 83, 90133, Palermo, Italy
| | - A De Luca
- Rizzoli Orthopedic Institute, Bologna, Italy
- Innovative Technology Platforms for Tissue Engineering, Theranostic and Oncology, Rizzoli Orthopaedic Institute, Via Divisi 83, 90133, Palermo, Italy
| | - R Alessandro
- Biology and Genetics Unit, Department of Biopathology and Medical Biotechnology, University of Palermo, Palermo, Italy
| | - M Fini
- Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - G Giavaresi
- Innovative Technology Platforms for Tissue Engineering, Theranostic and Oncology, Rizzoli Orthopaedic Institute, Via Divisi 83, 90133, Palermo, Italy
- Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, Bologna, Italy
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Paschos NK, Sennett ML. Update on mesenchymal stem cell therapies for cartilage disorders. World J Orthop 2017; 8:853-860. [PMID: 29312843 PMCID: PMC5745427 DOI: 10.5312/wjo.v8.i12.853] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 09/23/2017] [Accepted: 10/17/2017] [Indexed: 02/06/2023] Open
Abstract
Cartilage disorders, including focal cartilage lesions, are among the most common clinical problems in orthopedic practice. Left untreated, large focal lesions may result in progression to osteoarthritis, with tremendous impact on the quality of life of affected individuals. Current management strategies have shown only a modest degree of success, while several upcoming interventions signify better outcomes in the future. Among these, stem cell therapies have been suggested as a promising new era for cartilage disorders. Certain characteristics of the stem cells, such as their potential to differentiate but also to support healing made them a fruitful candidate for lesions in cartilage, a tissue with poor healing capacity. The aim of this editorial is to provide an update on the recent advancements in the field of stem cell therapy for the management of focal cartilage defects. Our goal is to present recent basic science advances and to present the potential of the use of stem cells in novel clinical interventions towards enhancement of the treatment armamentarium for cartilage lesions. Furthermore, we highlight some thoughts for the future of cartilage regeneration and repair and to explore future perspectives for the next steps in the field.
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Affiliation(s)
- Nikolaos K Paschos
- Department of Orthopaedic Surgery, Division of Sports Medicine, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, United States
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA 19107, United States
| | - Mackenzie L Sennett
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA 19107, United States
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14
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Zhao C, Jiang W, Zhou N, Liao J, Yang M, Hu N, Liang X, Xu W, Chen H, Liu W, Shi LL, Oliveira L, Wolf JM, Ho S, Athiviraham A, Tsai HM, He TC, Huang W. Sox9 augments BMP2-induced chondrogenic differentiation by downregulating Smad7 in mesenchymal stem cells (MSCs). Genes Dis 2017; 4:229-239. [PMID: 29503843 PMCID: PMC5831333 DOI: 10.1016/j.gendis.2017.10.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Cartilage injuries caused by arthritis or trauma pose formidable challenges for effective clinical management due to the limited intrinsic proliferative capability of chondrocytes. Autologous stem cell-based therapies and transgene-enhanced cartilage tissue engineering may open new avenues for the treatment of cartilage injuries. Bone morphogenetic protein 2 (BMP2) induces effective chondrogenesis of mesenchymal stem cells (MSCs) and can thus be explored as a potential therapeutic agent for cartilage defect repair. However, BMP2 also induces robust endochondral ossification. Although the precise mechanisms through which BMP2 governs the divergence of chondrogenesis and osteogenesis remain to be fully understood, blocking endochondral ossification during BMP2-induced cartilage formation may have practical significance for cartilage tissue engineering. Here, we investigate the role of Sox9-donwregulated Smad7 in BMP2-induced chondrogenic differentiation of MSCs. We find that overexpression of Sox9 leads to a decrease in BMP2-induced Smad7 expression in MSCs. Sox9 inhibits BMP2-induced expression of osteopontin while enhancing the expression of chondrogenic marker Col2a1 in MSCs. Forced expression of Sox9 in MSCs promotes BMP2-induced chondrogenesis and suppresses BMP2-induced endochondral ossification. Constitutive Smad7 expression inhibits BMP2-induced chondrogenesis in stem cell implantation assay. Mouse limb explant assay reveals that Sox9 expands BMP2-stimulated chondrocyte proliferating zone while Smad7 promotes BMP2-intitated hypertrophic zone of the growth plate. Cell cycle analysis indicates that Smad7 induces significant early apoptosis in BMP2-stimulated MSCs. Taken together, our results strongly suggest that Sox9 may facilitate BMP2-induced chondrogenesis by downregulating Smad7, which can be exploited for effective cartilage tissue engineering.
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Affiliation(s)
- Chen Zhao
- Department of Orthopedic Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.,Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Wei Jiang
- Department of Orthopedic Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Nian Zhou
- Department of Orthopedic Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Junyi Liao
- Department of Orthopedic Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.,Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Mingming Yang
- Department of Orthopedic Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Ning Hu
- Department of Orthopedic Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xi Liang
- Department of Orthopedic Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Wei Xu
- Department of Orthopedic Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Hong Chen
- Department of Orthopedic Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Wei Liu
- Department of Orthopedic Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.,Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Lewis L Shi
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Leonardo Oliveira
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Jennifer Moriatis Wolf
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Sherwin Ho
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Aravind Athiviraham
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - H M Tsai
- Department of Radiology, The University of Chicago, Chicago, IL 60637, USA
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Wei Huang
- Department of Orthopedic Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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15
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Graziano ACE, Avola R, Pannuzzo G, Cardile V. Aquaporin1 and 3 modification as a result of chondrogenic differentiation of human mesenchymal stem cell. J Cell Physiol 2017; 233:2279-2291. [PMID: 28708257 DOI: 10.1002/jcp.26100] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 07/13/2017] [Indexed: 12/15/2022]
Abstract
Chondrocytes are cells of articular cartilage particularly sensitive to water transport and ionic and osmotic changes from extracellular environment and responsible for the production of the synovial fluid. Aquaporins (AQPs) are a family of water and small solute transport channel proteins identified in several tissues, involved in physiological pathways and in manifold human diseases. In a recent period, AQP1 and 3 seem to have a role in metabolic water regulation in articular cartilage of load bearing joints. The aim of this study was to examine the levels of AQP1 and 3 during the chondrogenic differentiation of human mesenchymal stem cells (MSCs) derived from adipose tissue (AT). For the determination of chondrogenic markers and AQPs levels, glycosaminoglycans (GAGs) quantification, immunocytochemistry, RT-PCR, and Western blot were used after 0, 7, 14, 21, and 28 days from the start of differentiation. At 21 days, chondrocytes derived from AT-MSCs were able to produce augmented content of GAGs and significant quantity of SOX-9, lubricin, aggrecan, and collagen type II, suggesting hyaline cartilage formation, in combination with an increase of AQP3 and AQP1. However, while AQP1 level decreased after 21 days; AQP3 reached higher values at 28 days. The expression of AQP1 and 3 is a manifestation of physiological adaptation of functionally mature chondrocytes able to respond to the change of their internal environment influenced by extracellular matrix. The alteration or loss of expression of AQP1 and 3 could contribute to destruction of chondrocytes and to development of cartilage damage.
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Affiliation(s)
- Adriana C E Graziano
- Department of Biomedical and Biotechnological Science, Section of Physiology, University of Catania, Catania, Italy
| | - Rosanna Avola
- Department of Biomedical and Biotechnological Science, Section of Physiology, University of Catania, Catania, Italy
| | - Giovanna Pannuzzo
- Department of Biomedical and Biotechnological Science, Section of Physiology, University of Catania, Catania, Italy
| | - Venera Cardile
- Department of Biomedical and Biotechnological Science, Section of Physiology, University of Catania, Catania, Italy
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16
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Wang C, Liu G, Zhang W, Wang W, Ma C, Liu S, Fan C, Liu X. Cartilage oligomeric matrix protein improves in vivo cartilage regeneration and compression modulus by enhancing matrix assembly and synthesis. Colloids Surf B Biointerfaces 2017; 159:518-526. [PMID: 28843200 DOI: 10.1016/j.colsurfb.2017.08.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/31/2017] [Accepted: 08/03/2017] [Indexed: 01/09/2023]
Abstract
Cartilage oligomeric matrix protein (COMP), an abundant cartilage extracellular matrix protein, plays an important role in mesenchymal chondrogenesis. To test our hypothesis that COMP could promote tissue engineering cartilage regeneration as well as improve cartilaginous mechanical properties, COMP gene transfected rabbit bone marrow mesenchymal stem cells (BMSCs) were used for chondrogenic differentiation in vitro and were implanted with biphasic scaffolds into osteochondral defects of New Zealand white rabbit trochlear grooves for cartilage regeneration in vivo. In vitro, over expressed COMP could enhance the chondrogenic differentiation and ECM secretion of BMSCs. After euthanasia at 12 weeks post implantation, macroscopic observation, histological staining, mechanical tests and micro-CT were performed for the assessment of repaired cartilage. Overexpression of COMP leads to more newly formed hyaline cartilage and significantly improved mechanical property. These results demonstrated the significant role of COMP in the cartilage regeneration in vivo and offered inspiring advantage of COMP in the application of tissue engineering.
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Affiliation(s)
- Chongyang Wang
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Guangwang Liu
- Department of Orthopaedic Surgery, Central Hospital of Xuzhou, Affiliated Hospital of Medical College of Southeast University, Xuzhou, China
| | - Wen Zhang
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Wei Wang
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Chao Ma
- Department of Orthopaedic Surgery, Central Hospital of Xuzhou, Affiliated Hospital of Medical College of Southeast University, Xuzhou, China
| | - Shen Liu
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| | - Cunyi Fan
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| | - Xudong Liu
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
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17
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Marasini S, Chang DY, Jung JH, Lee SJ, Cha HL, Suh-Kim H, Kim SS. Effects of Adenoviral Gene Transduction on the Stemness of Human Bone Marrow Mesenchymal Stem Cells. Mol Cells 2017; 40:598-605. [PMID: 28835020 PMCID: PMC5582306 DOI: 10.14348/molcells.2017.0095] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 06/21/2017] [Accepted: 06/21/2017] [Indexed: 01/04/2023] Open
Abstract
Human mesenchymal stem cells (MSCs) are currently being evaluated as a cell-based therapy for tissue injury and degenerative diseases. Recently, several methods have been suggested to further enhance the therapeutic functions of MSCs, including genetic modifications with tissue- and/or disease-specific genes. The objective of this study was to examine the efficiency and stability of transduction using an adenoviral vector in human MSCs. Additionally, we aimed to assess the effects of transduction on the proliferation and multipotency of MSCs. The results indicate that MSCs can be transduced by adenoviruses in vitro, but high viral titers are necessary to achieve high efficiency. In addition, transduction at a higher multiplicity of infection (MOI) was associated with attenuated proliferation and senescence-like morphology. Furthermore, transduced MSCs showed a diminished capacity for adipogenic differentiation while retaining their potential to differentiate into osteocytes and chondrocytes. This work could contribute significantly to clinical trials of MSCs modified with therapeutic genes.
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Affiliation(s)
- Subash Marasini
- Department of Anatomy, Ajou University School of Medicine, Suwon 16499,
Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499,
Korea
| | - Da-Young Chang
- Department of Anatomy, Ajou University School of Medicine, Suwon 16499,
Korea
| | - Jin-Hwa Jung
- Department of Anatomy, Ajou University School of Medicine, Suwon 16499,
Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499,
Korea
| | - Su-Jung Lee
- Department of Anatomy, Ajou University School of Medicine, Suwon 16499,
Korea
| | - Hye Lim Cha
- Department of Anatomy, Ajou University School of Medicine, Suwon 16499,
Korea
| | - Haeyoung Suh-Kim
- Department of Anatomy, Ajou University School of Medicine, Suwon 16499,
Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499,
Korea
| | - Sung-Soo Kim
- Department of Anatomy, Ajou University School of Medicine, Suwon 16499,
Korea
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18
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Frisch J, Cucchiarini M. Gene- and Stem Cell-Based Approaches to Regulate Hypertrophic Differentiation in Articular Cartilage Disorders. Stem Cells Dev 2016; 25:1495-1512. [DOI: 10.1089/scd.2016.0106] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Janina Frisch
- Center of Experimental Orthopaedics, Saarland University and Saarland University Medical Center, Homburg, Germany
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University and Saarland University Medical Center, Homburg, Germany
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19
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Mesenchymal Stem Cells Subpopulations: Application for Orthopedic Regenerative Medicine. Stem Cells Int 2016; 2016:3187491. [PMID: 27725838 PMCID: PMC5048051 DOI: 10.1155/2016/3187491] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 07/10/2016] [Accepted: 08/07/2016] [Indexed: 12/21/2022] Open
Abstract
Research on mesenchymal stem cells (MSCs) continues to progress rapidly. Nevertheless, the field faces several challenges, such as inherent cell heterogeneity and the absence of unique MSCs markers. Due to MSCs' ability to differentiate into multiple tissues, these cells represent a promising tool for new cell-based therapies. However, for tissue engineering applications, it is critical to start with a well-defined cell population. Additionally, evidence that MSCs subpopulations may also feature distinct characteristics and regeneration potential has arisen. In this report, we present an overview of the identification of MSCs based on the expression of several surface markers and their current tissue sources. We review the use of MSCs subpopulations in recent years and the main methodologies that have addressed their isolation, and we emphasize the most-used surface markers for selection, isolation, and characterization. Next, we discuss the osteogenic and chondrogenic differentiation from MSCs subpopulations. We conclude that MSCs subpopulation selection is not a minor concern because each subpopulation has particular potential for promoting the differentiation into osteoblasts and chondrocytes. The accurate selection of the subpopulation advances possibilities suitable for preclinical and clinical studies and determines the safest and most efficacious regeneration process.
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20
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Castañeda-Lopez ME, Garza-Veloz I, Lopez-Hernandez Y, Barbosa-Cisneros OY, Martinez-Fierro ML. Anti-Inflammatory Effects of Modified Adenoviral Vectors for Gene Therapy: A View through Animal Models Tested. Immunol Invest 2016; 45:450-70. [PMID: 27245510 DOI: 10.3109/08820139.2016.1168831] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The central dogma of gene therapy relies on the application of novel therapeutic genes to treat or prevent diseases. The main types of vectors used for gene transfer are adenovirus, retrovirus, lentivirus, liposome, and adeno-associated virus vectors. Gene therapy has emerged as a promising alternative for the treatment of inflammatory diseases. The main targets are cytokines, co-stimulatory molecules, and different types of cells from hematological and mesenchymal sources. In this review, we focus on molecules with anti-inflammatory effects used for in vivo gene therapy mediated by adenoviral gene transfer in the treatment of immune-mediated inflammatory diseases, with particular emphasis on autoinflammatory and autoimmune diseases.
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Affiliation(s)
- M E Castañeda-Lopez
- a Molecular Medicine Laboratory, Unidad Academica de Medicina Humana y Ciencias de la Salud de la Universidad Autonoma de Zacatecas , Zacatecas , Mexico.,b Centro de Innovacion Tecnologica e Industrial, Unidad Academica de Ingenieria Electrica , Universidad Autonoma de Zacatecas , Zacatecas , Mexico
| | - I Garza-Veloz
- a Molecular Medicine Laboratory, Unidad Academica de Medicina Humana y Ciencias de la Salud de la Universidad Autonoma de Zacatecas , Zacatecas , Mexico.,b Centro de Innovacion Tecnologica e Industrial, Unidad Academica de Ingenieria Electrica , Universidad Autonoma de Zacatecas , Zacatecas , Mexico
| | - Y Lopez-Hernandez
- c CONACyT Research Fellow, Molecular Medicine Laboratory, Unidad Academica de Medicina Humana y Ciencias de la Salud , Universidad Autonoma de Zacatecas , Mexico
| | - O Y Barbosa-Cisneros
- d Laboratory of Cell and Molecular Biology, Unidad Academica de Ciencias Quimicas de la Universidad Autonoma de Zacatecas , Zacatecas , Mexico
| | - M L Martinez-Fierro
- a Molecular Medicine Laboratory, Unidad Academica de Medicina Humana y Ciencias de la Salud de la Universidad Autonoma de Zacatecas , Zacatecas , Mexico.,b Centro de Innovacion Tecnologica e Industrial, Unidad Academica de Ingenieria Electrica , Universidad Autonoma de Zacatecas , Zacatecas , Mexico
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21
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Shi S, Xie J, Zhong J, Lin S, Zhang T, Sun K, Fu N, Shao X, Lin Y. Effects of low oxygen tension on gene profile of soluble growth factors in co-cultured adipose-derived stromal cells and chondrocytes. Cell Prolif 2016; 49:341-51. [PMID: 27090063 DOI: 10.1111/cpr.12259] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 03/28/2016] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES Moving towards development of optimized cartilage regeneration with adipose-derived stromal cells (ASCs), the focus of this study was on investigating the influence of hypoxia on soluble factors secreted by ASCs and chondrocytes after crosstalk. METHODS We established direct contact co-culture and non-contact co-culture systems by using red or green fluorescent protein (R/GFP)-labelled mice and SD rats respectively. Gene variation of growth factors of the two cell types, in both hypoxic and normoxic conditions, were screened using semi-quantitative polymerase chain reaction (PCR). RESULTS Co-culture with ASCs and chondrocytes under hypoxia was shown to successfully induce or enhance ASC to chondrogenic differentiation. To be specific, chondrogenic maker genes: AGC, COL II and SOX9 were remarkably enhanced in both ASCs and chondrocytes after crosstalk under low oxygen tension. Subsequently, screening growth factors in ASCs and chondrocytes under hypoxia showed that HIF-1α, VEGF-A/B, BMP-2/-4/-6, FGF-2 and IGF-1 were significantly increased, but not TGF-β1. CONCLUSIONS These results revealed that both hypoxia and co-culture systems can notably enhance chondrogenesis of ASCs as well as increase proliferation of ASCs and chondrocytes.
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Affiliation(s)
- Sirong Shi
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Jing Xie
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Juan Zhong
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Shiyu Lin
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Tao Zhang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Ke Sun
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Na Fu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Xiaoru Shao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
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22
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Im GI. Gene Transfer Strategies to Promote Chondrogenesis and Cartilage Regeneration. TISSUE ENGINEERING PART B-REVIEWS 2016; 22:136-48. [DOI: 10.1089/ten.teb.2015.0347] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Gun-Il Im
- Department of Orthopedics, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
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23
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Im GI. Regeneration of articular cartilage using adipose stem cells. J Biomed Mater Res A 2016; 104:1830-44. [PMID: 26990234 DOI: 10.1002/jbm.a.35705] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 03/02/2016] [Indexed: 12/16/2022]
Abstract
Articular cartilage (AC) has limited potential for self-regeneration and damage to AC eventually leads to the development and progression of osteoarthritis (OA). Cell implantation strategies have emerged as a new treatment modality to regenerate AC. Adipose stem cells/adipose-derived stromal cells (ASCs) have gained attention due to their abundance, excellent proliferative potential, and minimal morbidity during harvest. These advantages lower the cost of cell therapy by circumventing time-consuming procedure of culture expansion. ASCs have drawn attention as a potential source for cartilage regeneration since the feasibility of chondrogenesis from ASCs was first reported. After several groups reported inferior chondrogenesis from ASCs, numerous methods were devised to overcome the intrinsic properties. Most in vivo animal studies have reported good results using predifferentiated or undifferentiated, autologous or allogeneic ASCs to regenerate cartilage in osteochondral defects or surgically-induced OA. In this review, we summarize literature on the isolation and in vitro differentiation processes of ASCs, in vivo studies to regenerate AC in osteochondral defects and OA using ASCs, and clinical applications of ASCs. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 1830-1844, 2016.
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Affiliation(s)
- Gun-Il Im
- Department of Orthopedics, Dongguk University Ilsan Hospital, Goyang, Korea
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24
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Tuin SA, Pourdeyhimi B, Loboa EG. Creating tissues from textiles: scalable nonwoven manufacturing techniques for fabrication of tissue engineering scaffolds. ACTA ACUST UNITED AC 2016; 11:015017. [PMID: 26908485 DOI: 10.1088/1748-6041/11/1/015017] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Electrospun nonwovens have been used extensively for tissue engineering applications due to their inherent similarities with respect to fibre size and morphology to that of native extracellular matrix (ECM). However, fabrication of large scaffold constructs is time consuming, may require harsh organic solvents, and often results in mechanical properties inferior to the tissue being treated. In order to translate nonwoven based tissue engineering scaffold strategies to clinical use, a high throughput, repeatable, scalable, and economic manufacturing process is needed. We suggest that nonwoven industry standard high throughput manufacturing techniques (meltblowing, spunbond, and carding) can meet this need. In this study, meltblown, spunbond and carded poly(lactic acid) (PLA) nonwovens were evaluated as tissue engineering scaffolds using human adipose derived stem cells (hASC) and compared to electrospun nonwovens. Scaffolds were seeded with hASC and viability, proliferation, and differentiation were evaluated over the course of 3 weeks. We found that nonwovens manufactured via these industry standard, commercially relevant manufacturing techniques were capable of supporting hASC attachment, proliferation, and both adipogenic and osteogenic differentiation of hASC, making them promising candidates for commercialization and translation of nonwoven scaffold based tissue engineering strategies.
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Affiliation(s)
- S A Tuin
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, 4208 EB3, Campus Box 7115, Raleigh, NC 27695, USA
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25
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Nowakowski A, Walczak P, Janowski M, Lukomska B. Genetic Engineering of Mesenchymal Stem Cells for Regenerative Medicine. Stem Cells Dev 2015; 24:2219-42. [PMID: 26140302 DOI: 10.1089/scd.2015.0062] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal stem cells (MSCs), which can be obtained from various organs and easily propagated in vitro, are one of the most extensively used types of stem cells and have been shown to be efficacious in a broad set of diseases. The unique and highly desirable properties of MSCs include high migratory capacities toward injured areas, immunomodulatory features, and the natural ability to differentiate into connective tissue phenotypes. These phenotypes include bone and cartilage, and these properties predispose MSCs to be therapeutically useful. In addition, MSCs elicit their therapeutic effects by paracrine actions, in which the metabolism of target tissues is modulated. Genetic engineering methods can greatly amplify these properties and broaden the therapeutic capabilities of MSCs, including transdifferentiation toward diverse cell lineages. However, cell engineering can also affect safety and increase the cost of therapy based on MSCs; thus, the advantages and disadvantages of these procedures should be discussed. In this review, the latest applications of genetic engineering methods for MSCs with regenerative medicine purposes are presented.
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Affiliation(s)
- Adam Nowakowski
- 1 NeuroRepair Department, Mossakowski Medical Research Centre, Polish Academy of Sciences , Warsaw, Poland
| | - Piotr Walczak
- 2 Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland.,3 Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine , Baltimore, Maryland.,4 Department of Radiology, Faculty of Medical Sciences, University of Warmia and Mazury , Olsztyn, Poland
| | - Miroslaw Janowski
- 1 NeuroRepair Department, Mossakowski Medical Research Centre, Polish Academy of Sciences , Warsaw, Poland .,2 Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland.,3 Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine , Baltimore, Maryland
| | - Barbara Lukomska
- 1 NeuroRepair Department, Mossakowski Medical Research Centre, Polish Academy of Sciences , Warsaw, Poland
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26
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Gaut C, Sugaya K. Critical review on the physical and mechanical factors involved in tissue engineering of cartilage. Regen Med 2015; 10:665-79. [DOI: 10.2217/rme.15.31] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Articular cartilage defects often progress to osteoarthritis, which negatively impacts quality of life for millions of people worldwide and leads to high healthcare expenditures. Tissue engineering approaches to osteoarthritis have concentrated on proliferation and differentiation of stem cells by activation and suppression of signaling pathways, and by using a variety of scaffolding techniques. Recent studies indicate a key role of environmental factors in the differentiation of mesenchymal stem cells to mature cartilage-producing chondrocytes. Therapeutic approaches that consider environmental regulation could optimize chondrogenesis protocols for regeneration of articular cartilage. This review focuses on the effect of scaffold structure and composition, mechanical stress and hypoxia in modulating mesenchymal stem cell fate and the current use of these environmental factors in tissue engineering research.
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Affiliation(s)
- Carrie Gaut
- INDICASAT-AIP, Ciudad de Saber, Clayton, Apartado 0843-01103, Panama, Rep. de Panama
- Department of Biotechnology, Acharya Nagarjuna University, Guntur, Andhra Pradesh 522510, India
| | - Kiminobu Sugaya
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, Orlando, FL 32827, USA
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27
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Lach M, Trzeciak T, Richter M, Pawlicz J, Suchorska WM. Directed differentiation of induced pluripotent stem cells into chondrogenic lineages for articular cartilage treatment. J Tissue Eng 2014; 5:2041731414552701. [PMID: 25383175 PMCID: PMC4221915 DOI: 10.1177/2041731414552701] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 09/02/2014] [Indexed: 12/12/2022] Open
Abstract
In recent years, increases in the number of articular cartilage injuries caused by environmental factors or pathological conditions have led to a notable rise in the incidence of premature osteoarthritis. Osteoarthritis, considered a disease of civilization, is the leading cause of disability. At present, standard methods for treating damaged articular cartilage, including autologous chondrocyte implantation or microfracture, are short-term solutions with important side effects. Emerging treatments include the use of induced pluripotent stem cells, a technique that could provide a new tool for treatment of joint damage. However, research in this area is still early, and no optimal protocol for transforming induced pluripotent stem cells into chondrocytes has yet been established. Developments in our understanding of cartilage developmental biology, together with the use of modern technologies in the field of tissue engineering, provide an opportunity to create a complete functional model of articular cartilage.
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Affiliation(s)
- Michał Lach
- Radiobiology Laboratory, Greater Poland Cancer Centre, Poznan, Poland
| | - Tomasz Trzeciak
- Department of Orthopedics and Traumatology, Poznan University of Medical Sciences, Poznan, Poland
| | - Magdalena Richter
- Department of Orthopedics and Traumatology, Poznan University of Medical Sciences, Poznan, Poland
| | - Jarosław Pawlicz
- Department of Orthopedics and Traumatology, Poznan University of Medical Sciences, Poznan, Poland
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28
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Kim YI, Ryu JS, Yeo JE, Choi YJ, Kim YS, Ko K, Koh YG. Overexpression of TGF-β1 enhances chondrogenic differentiation and proliferation of human synovium-derived stem cells. Biochem Biophys Res Commun 2014; 450:1593-9. [PMID: 25035928 DOI: 10.1016/j.bbrc.2014.07.045] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Accepted: 07/08/2014] [Indexed: 10/25/2022]
Abstract
Transforming growth factor-beta (TGF-β) superfamily proteins play a critical role in proliferation, differentiation, and other functions of mesenchymal stem cells (MSCs). During chondrogenic differentiation of MSCs, TGF-β up-regulates chondrogenic gene expression by enhancing the expression of the transcription factor SRY (sex-determining region Y)-box9 (Sox9). In this study, we investigated the effect of continuous TGF-β1 overexpression in human synovium-derived MSCs (hSD-MSCs) on immunophenotype, differentiation potential, and proliferation rate. hSD-MSCs were transduced with recombinant retroviruses (rRV) encoding TGF-β1. The results revealed that continuous overexpression of TGF-β1 did not affect their phenotype as evidenced by flow cytometry and reverse transcriptase PCR (RT-PCR). In addition, continuous TGF-β1 overexpression strongly enhanced cell proliferation of hSD-MSCs compared to the control groups. Also, induction of chondrogenesis was more effective in rRV-TGFB-transduced hSD-MSCs as shown by RT-PCR for chondrogenic markers, toluidine blue staining and glycosaminoglycan (GAG)/DNA ratio. Our data suggest that overexpression of TGF-β1 positively enhances the proliferation and chondrogenic potential of hSD-MSCs.
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Affiliation(s)
- Yong Il Kim
- Center for Stem Cell & Arthritis Research, Department of Orthopedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea
| | - Jae-Sung Ryu
- Center for Stem Cell & Arthritis Research, Department of Orthopedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea
| | - Jee Eun Yeo
- Center for Stem Cell & Arthritis Research, Department of Orthopedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea
| | - Yun Jin Choi
- Center for Stem Cell & Arthritis Research, Department of Orthopedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea
| | - Yong Sang Kim
- Center for Stem Cell & Arthritis Research, Department of Orthopedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea
| | - Kinarm Ko
- Center for Stem Cell Research, Institute of Advanced Biomedical Science, Konkuk University, Seoul 143-701, Republic of Korea
| | - Yong-Gon Koh
- Center for Stem Cell & Arthritis Research, Department of Orthopedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea.
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29
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Gene modification of mesenchymal stem cells and articular chondrocytes to enhance chondrogenesis. BIOMED RESEARCH INTERNATIONAL 2014; 2014:369528. [PMID: 24963479 PMCID: PMC4052490 DOI: 10.1155/2014/369528] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 03/27/2014] [Indexed: 01/14/2023]
Abstract
Current cell based treatment for articular cartilage and osteochondral defects are hampered by issues such as cellular dedifferentiation and hypertrophy of the resident or transplanted cells. The reduced expression of chondrogenic signalling molecules and transcription factors is a major contributing factor to changes in cell phenotype. Gene modification of chondrocytes may be one approach to redirect cells to their primary phenotype and recent advances in nonviral and viral gene delivery technologies have enabled the expression of these lost factors at high efficiency and specificity to regain chondrocyte function. This review focuses on the various candidate genes that encode signalling molecules and transcription factors that are specific for the enhancement of the chondrogenic phenotype and also how epigenetic regulators of chondrogenesis in the form of microRNA may also play an important role.
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30
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Chen JL, Duan L, Zhu W, Xiong J, Wang D. Extracellular matrix production in vitro in cartilage tissue engineering. J Transl Med 2014; 12:88. [PMID: 24708713 PMCID: PMC4233628 DOI: 10.1186/1479-5876-12-88] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 03/31/2014] [Indexed: 11/18/2022] Open
Abstract
Cartilage tissue engineering is arising as a technique for the repair of cartilage lesions in clinical applications. However, fibrocartilage formation weakened the mechanical functions of the articular, which compromises the clinical outcomes. Due to the low proliferation ability, dedifferentiation property and low production of cartilage-specific extracellular matrix (ECM) of the chondrocytes, the cartilage synthesis in vitro has been one of the major limitations for obtaining high-quality engineered cartilage constructs. This review discusses cells, biomaterial scaffolds and stimulating factors that can facilitate the cartilage-specific ECM production and accumulation in the in vitro culture system. Special emphasis has been put on the factors that affect the production of ECM macromolecules such as collagen type II and proteoglycans in the review, aiming at providing new strategies to improve the quality of tissue-engineered cartilage.
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Affiliation(s)
| | | | | | | | - Daping Wang
- Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University), Shenzhen 518035, Guangdong Province, China.
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31
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Liao J, Hu N, Zhou N, Lin L, Zhao C, Yi S, Fan T, Bao W, Liang X, Chen H, Xu W, Chen C, Cheng Q, Zeng Y, Si W, Yang Z, Huang W. Sox9 potentiates BMP2-induced chondrogenic differentiation and inhibits BMP2-induced osteogenic differentiation. PLoS One 2014; 9:e89025. [PMID: 24551211 PMCID: PMC3923876 DOI: 10.1371/journal.pone.0089025] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Accepted: 01/14/2014] [Indexed: 12/22/2022] Open
Abstract
Bone morphogenetic protein 2 (BMP2) is one of the key chondrogenic growth factors involved in the cartilage regeneration. However, it also exhibits osteogenic abilities and triggers endochondral ossification. Effective chondrogenesis and inhibition of BMP2-induced osteogenesis and endochondral ossification can be achieved by directing the mesenchymal stem cells (MSCs) towards chondrocyte lineage with chodrogenic factors, such as Sox9. Here we investigated the effects of Sox9 on BMP2-induced chondrogenic and osteogenic differentiation of MSCs. We found exogenous overexpression of Sox9 enhanced the BMP2-induced chondrogenic differentiation of MSCs in vitro. Also, it inhibited early and late osteogenic differentiation of MSCs in vitro. Subcutaneous stem cell implantation demonstrated Sox9 potentiated BMP2-induced cartilage formation and inhibited endochondral ossification. Mouse limb cultures indicated that BMP2 and Sox9 acted synergistically to stimulate chondrocytes proliferation, and Sox9 inhibited BMP2-induced chondrocytes hypertrophy and ossification. This study strongly suggests that Sox9 potentiates BMP2-induced MSCs chondrogenic differentiation and cartilage formation, and inhibits BMP2-induced MSCs osteogenic differentiation and endochondral ossification. Thus, exogenous overexpression of Sox9 in BMP2-induced mesenchymal stem cells differentiation may be a new strategy for cartilage tissue engineering.
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Affiliation(s)
- Junyi Liao
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ning Hu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Nian Zhou
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Liangbo Lin
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chen Zhao
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shixiong Yi
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Tingxu Fan
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Wei Bao
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xi Liang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hong Chen
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Wei Xu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Cheng Chen
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qiang Cheng
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yongming Zeng
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Weike Si
- Department of Clinical Hematology, Third Military Medical University, Chongqing, China
| | - Zhong Yang
- Department of Clinical Hematology, Third Military Medical University, Chongqing, China
| | - Wei Huang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- * E-mail:
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