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Adam MS, Zhuang H, Ren X, Zhang Y, Zhou P. The metabolic characteristics and changes of chondrocytes in vivo and in vitro in osteoarthritis. Front Endocrinol (Lausanne) 2024; 15:1393550. [PMID: 38854686 PMCID: PMC11162117 DOI: 10.3389/fendo.2024.1393550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 05/07/2024] [Indexed: 06/11/2024] Open
Abstract
Osteoarthritis (OA) is an intricate pathological condition that primarily affects the entire synovial joint, especially the hip, hand, and knee joints. This results in inflammation in the synovium and osteochondral injuries, ultimately causing functional limitations and joint dysfunction. The key mechanism responsible for maintaining articular cartilage function is chondrocyte metabolism, which involves energy generation through glycolysis, oxidative phosphorylation, and other metabolic pathways. Some studies have shown that chondrocytes in OA exhibit increased glycolytic activity, leading to elevated lactate production and decreased cartilage matrix synthesis. In OA cartilage, chondrocytes display alterations in mitochondrial activity, such as decreased ATP generation and increased oxidative stress, which can contribute to cartilage deterioration. Chondrocyte metabolism also involves anabolic processes for extracellular matrix substrate production and energy generation. During OA, chondrocytes undergo considerable metabolic changes in different aspects, leading to articular cartilage homeostasis deterioration. Numerous studies have been carried out to provide tangible therapies for OA by using various models in vivo and in vitro targeting chondrocyte metabolism, although there are still certain limitations. With growing evidence indicating the essential role of chondrocyte metabolism in disease etiology, this literature review explores the metabolic characteristics and changes of chondrocytes in the presence of OA, both in vivo and in vitro. To provide insight into the complex metabolic reprogramming crucial in chondrocytes during OA progression, we investigate the dynamic interaction between metabolic pathways, such as glycolysis, lipid metabolism, and mitochondrial function. In addition, this review highlights prospective future research directions for novel approaches to diagnosis and treatment. Adopting a multifaceted strategy, our review aims to offer a comprehensive understanding of the metabolic intricacies within chondrocytes in OA, with the ultimate goal of identifying therapeutic targets capable of modulating chondrocyte metabolism for the treatment of OA.
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Affiliation(s)
| | | | | | | | - Panghu Zhou
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, China
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Stampoultzis T, Guo Y, Nasrollahzadeh N, Rana VK, Karami P, Pioletti DP. Low-oxygen tension augments chondrocyte sensitivity to biomimetic thermomechanical cues in cartilage-engineered constructs. iScience 2023; 26:107491. [PMID: 37599834 PMCID: PMC10432199 DOI: 10.1016/j.isci.2023.107491] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 05/14/2023] [Accepted: 07/23/2023] [Indexed: 08/22/2023] Open
Abstract
Chondrocytes respond to various biophysical cues, including oxygen tension, transient thermal signals, and mechanical stimuli. However, understanding how these factors interact to establish a unique regulatory microenvironment for chondrocyte function remains unclear. Herein, we explore these interactions using a joint-simulating bioreactor that independently controls the culture's oxygen concentration, evolution of temperature, and mechanical loading. Our analysis revealed significant coupling between these signals, resulting in a remarkable ∼14-fold increase in collagen type II (COL2a) and aggrecan (ACAN) mRNA expression. Furthermore, dynamic thermomechanical stimulation enhanced glycosaminoglycan and COL2a protein synthesis, with the magnitude of the biosynthetic changes being oxygen dependent. Additionally, our mechanistic study highlighted the crucial role of SRY-box transcription factor 9 (SOX9) as a major regulator of chondrogenic response, specifically expressed in response to combined biophysical signals. These findings illuminate the integration of various mechanobiological cues by chondrocytes and provide valuable insights for improving the extracellular matrix content in cartilage-engineered constructs.
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Affiliation(s)
- Theofanis Stampoultzis
- Laboratory of Biomechanical Orthopedics, Institute of Bioengineering, EPFL, Lausanne, Switzerland
| | - Yanheng Guo
- Laboratory of Biomechanical Orthopedics, Institute of Bioengineering, EPFL, Lausanne, Switzerland
| | - Naser Nasrollahzadeh
- Laboratory of Biomechanical Orthopedics, Institute of Bioengineering, EPFL, Lausanne, Switzerland
| | - Vijay Kumar Rana
- Laboratory of Biomechanical Orthopedics, Institute of Bioengineering, EPFL, Lausanne, Switzerland
| | - Peyman Karami
- Laboratory of Biomechanical Orthopedics, Institute of Bioengineering, EPFL, Lausanne, Switzerland
| | - Dominique P. Pioletti
- Laboratory of Biomechanical Orthopedics, Institute of Bioengineering, EPFL, Lausanne, Switzerland
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Ravanetti F, Saleri R, Martelli P, Andrani M, Ferrari L, Cavalli V, Conti V, Rossetti AP, De Angelis E, Borghetti P. Hypoxia and platelet lysate sustain differentiation of primary horse articular chondrocytes in xeno-free supplementation culture. Res Vet Sci 2022; 152:687-697. [DOI: 10.1016/j.rvsc.2022.09.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 09/16/2022] [Accepted: 09/27/2022] [Indexed: 11/29/2022]
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The Critical Role of Hypoxia in the Re-Differentiation of Human Articular Chondrocytes. Cells 2022; 11:cells11162553. [PMID: 36010629 PMCID: PMC9406483 DOI: 10.3390/cells11162553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 08/01/2022] [Accepted: 08/07/2022] [Indexed: 11/17/2022] Open
Abstract
The preservation of the chondrogenic phenotype and hypoxia-related physiological microenvironment are major challenges in the 2D culture of primary human chondrocytes. To address this problem, we develop a 3D culture system generating scaffold-free spheroids from human chondrocytes. Our results highlight the chondrogenic potential of cultured human articular chondrocytes in a 3D system combined with hypoxia independently of the cartilage source. After 14 days of culture, we developed spheroids with homogenous diameter and shape from hyaline cartilage donors. Spheroids generated in hypoxia showed a significantly increased glycosaminoglycans synthesis and up-regulated the expression of SOX9, ACAN, COL2A1, COMP, and SNAI1 compared to those obtained under normoxic conditions. Therefore, we conclude that spheroids developed under hypoxic conditions modulate the expression of chondrogenesis-related genes and native tissue features better than 2D cultures. Thus, this scaffold-free 3D culture system represents a novel in vitro model that can be used for cartilage biology research.
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Foster NC, Hall NM, El Haj AJ. Two-Dimensional and Three-Dimensional Cartilage Model Platforms for Drug Evaluation and High-Throughput Screening Assays. TISSUE ENGINEERING. PART B, REVIEWS 2022; 28:421-436. [PMID: 34010074 PMCID: PMC7612674 DOI: 10.1089/ten.teb.2020.0354] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Osteoarthritis (OA) is a severely painful and debilitating disease of the joint, which brings about degradation of the articular cartilage and currently has few therapeutic solutions. Two-dimensional (2D) high-throughput screening (HTS) assays have been widely used to identify candidate drugs with therapeutic potential for the treatment of OA. A number of small molecules which improve the chondrogenic differentiation of progenitor cells for tissue engineering applications have also been discovered in this way. However, due to the failure of these models to accurately represent the native joint environment, the efficacy of these drugs has been limited in vivo. Screening systems utilizing three-dimensional (3D) models, which more closely reflect the tissue and its complex cell and molecular interactions, have also been described. However, the vast majority of these systems fail to recapitulate the complex, zonal structure of articular cartilage and its unique cell population. This review summarizes current 2D HTS techniques and addresses the question of how to use existing 3D models of tissue-engineered cartilage to create 3D drug screening platforms with improved outcomes. Impact statement Currently, the use of two-dimensional (2D) screening platforms in drug discovery is common practice. However, these systems often fail to predict efficacy in vivo, as they do not accurately represent the complexity of the native three-dimensional (3D) environment. This article describes existing 2D and 3D high-throughput systems used to identify small molecules for osteoarthritis treatment or in vitro chondrogenic differentiation, and suggests ways to improve the efficacy of these systems based on the most recent research.
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Affiliation(s)
| | - Nicole M Hall
- Division of Biomedical Engineering, James Watt School of Engineering, University of Glasgow, Glasgow, United Kingdom
| | - Alicia J El Haj
- Healthcare Technologies Institute, Institute of Translational Medicine, University of Birmingham, Edgbaston, B15 2TH
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The clinical potential of articular cartilage-derived progenitor cells: a systematic review. NPJ Regen Med 2022; 7:2. [PMID: 35013329 PMCID: PMC8748760 DOI: 10.1038/s41536-021-00203-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 11/30/2021] [Indexed: 01/09/2023] Open
Abstract
Over the past two decades, evidence has emerged for the existence of a distinct population of endogenous progenitor cells in adult articular cartilage, predominantly referred to as articular cartilage-derived progenitor cells (ACPCs). This progenitor population can be isolated from articular cartilage of a broad range of species, including human, equine, and bovine cartilage. In vitro, ACPCs possess mesenchymal stromal cell (MSC)-like characteristics, such as colony forming potential, extensive proliferation, and multilineage potential. Contrary to bone marrow-derived MSCs, ACPCs exhibit no signs of hypertrophic differentiation and therefore hold potential for cartilage repair. As no unique cell marker or marker set has been established to specifically identify ACPCs, isolation and characterization protocols vary greatly. This systematic review summarizes the state-of-the-art research on this promising cell type for use in cartilage repair therapies. It provides an overview of the available literature on endogenous progenitor cells in adult articular cartilage and specifically compares identification of these cell populations in healthy and osteoarthritic (OA) cartilage, isolation procedures, in vitro characterization, and advantages over other cell types used for cartilage repair. The methods for the systematic review were prospectively registered in PROSPERO (CRD42020184775).
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Hede KTC, Christensen BB, Olesen ML, Thomsen JS, Foldager CB, Toh WS, Lim SK, Lind MC. Mesenchymal Stem Cell Extracellular Vesicles as Adjuvant to Bone Marrow Stimulation in Chondral Defect Repair in a Minipig Model. Cartilage 2021; 13:254S-266S. [PMID: 34308681 PMCID: PMC8804773 DOI: 10.1177/19476035211029707] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVE This study evaluated the effects of mesenchymal stem cell-extracellular vesicles (MSC-EVs) on chondrocyte proliferation in vitro and on cartilage repair in vivo following bone marrow stimulation (BMS) of focal chondral defects of the knee. METHODS Six adult Göttingen minipigs received 2 chondral defects in each knee. The pigs were randomized to treatment with either BMS combined with MSC-EVs or BMS combined with phosphate-buffered saline (PBS). Intraarticular injections MSC-EVs or PBS were performed immediately after closure of the surgical incisions, and at 2 and 4 weeks postoperatively. Repair was evaluated after 6 months with gross examination, histology, histomorphometry, immunohistochemistry, and micro-computed tomography (µCT) analysis of the trabecular bone beneath the defect. RESULTS Defects treated with MSC-EVs had more bone in the cartilage defect area than the PBS-treated defects (7.9% vs. 1.5%, P = 0.02). Less than 1% of the repair tissue in both groups was hyaline cartilage. International Cartilage and Joint Preservation Society II histological scoring showed that defects treated with MSC-EVs scored lower on "matrix staining" (20.8 vs. 50.0, P = 0.03), "cell morphology" (35.4 vs. 53.8, P = 0.04), and "overall assessment" (30.8 vs. 52.9, P = 0.03). Consistently, defects treated with MSC-EVs had lower collagen II and higher collagen I areal deposition. Defects treated with MSC-EVs had subchondral bone with significantly higher tissue mineral densities than PBS-treated defects (860 mg HA/cm3 vs. 838 mg HA/cm3, P = 0.02). CONCLUSION Intraarticular injections of MSC-EVs in conjunction with BMS led to osseous ingrowth that impaired optimal cartilage repair, while enhancing subchondral bone healing.
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Affiliation(s)
- Kris T. C. Hede
- Orthopedic Research Laboratory, Aarhus
University Hospital, Aarhus N, Denmark
| | | | - Morten L. Olesen
- Orthopedic Research Laboratory, Aarhus
University Hospital, Aarhus N, Denmark
| | | | - Casper B. Foldager
- Orthopedic Research Laboratory, Aarhus
University Hospital, Aarhus N, Denmark
| | - Wei Seong Toh
- Faculty of Dentistry, National
University of Singapore, Singapore
- Department of Orthopaedic Surgery, Yong
Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Sai Kiang Lim
- Institute of Molecular and Cell
Biology, Agency for Science, Technology and Research, Singapore
| | - Martin C. Lind
- Orthopedic Research Laboratory, Aarhus
University Hospital, Aarhus N, Denmark
- Sports Trauma Clinic, Aarhus University
Hospital, Aarhus N, Denmark
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Nanda SS, Wang T, Yoon HY, An SSA, Hembram KPSS, Kim K, Yi DK. Enhanced proliferation of rabbit chondrocytes by using a well circulated nanoshock system. Sci Rep 2021; 11:19388. [PMID: 34588578 PMCID: PMC8481538 DOI: 10.1038/s41598-021-98929-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 09/14/2021] [Indexed: 12/27/2022] Open
Abstract
The gold nanorods (GNRs) embedded alginate-chitosan (scaffold), which was designed and fabricated to produce efficient handling of the cell proliferations. Scaffold embedded GNR (SGNR) and NIR (near infrared) irradiations are developing into an interesting medical prognosis tool for rabbit chondrocyte (RC) proliferation. SGNR contained a pattern of uniform pores. Biocompatibility and cellular proliferation achieved by disclosures to NIR irradiations, providing high cell survival. SGNR and NIR irradiations could produce mechanical and biochemical cues for regulating RCs proliferations. To determine the thermal stress, it exposed RCs to 39–42 °C for 0–240 min at the start point of the cell culture cycle. It produced photothermal stress in cellular surrounding (cells located adjacent to and within scaffold) and it deals with the proliferation behavior of RC. All the processes were modeled with experimental criteria and time evolution process. Our system could help the cell proliferation by generating heat for cells. Hence, the present strategy could be implemented for supporting cell therapeutics after transplantation. This implementation would open new design techniques for integrating the interfaces between NIR irradiated and non-irradiated tissues.
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Affiliation(s)
| | - Tuntun Wang
- Department of Chemistry, Myongji University, Yongin, 03674, South Korea
| | - Hong Yeol Yoon
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, South Korea
| | - Seong Soo A An
- Department of Bionanotechnology, Gachon Medical Research Institute, Gachon University, Seongnam, 13120, South Korea
| | - K P S S Hembram
- Optoelectronic Materials and Devices Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, South Korea
| | - Kwangmeyung Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, South Korea. .,Korea University (KU)-KIST Graduate School of Converging Science and Technology, Seoul, 02841, South Korea.
| | - Dong Kee Yi
- Department of Chemistry, Myongji University, Yongin, 03674, South Korea.
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de Sousa Araújo E, Domingues Stocco T, Fernandes de Sousa G, Afewerki S, Marciano FR, Alexandre Finzi Corat M, Michelle Machado de Paula M, Ferreira Cândido Lima Verde T, Cristina Moreira Silva M, Oliveira Lobo A. Oxygen-generating microparticles in chondrocytes-laden hydrogels by facile and versatile click chemistry strategy. Colloids Surf B Biointerfaces 2021; 205:111850. [PMID: 34015729 DOI: 10.1016/j.colsurfb.2021.111850] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 05/03/2021] [Accepted: 05/11/2021] [Indexed: 01/12/2023]
Abstract
Currently, oxygen supply for in vitro cell culture is one of the major challenges in tissue engineering, especially in three-dimensional (3D) structures, such as polymeric hydrogels, because oxygen is an essential element for cells survival. In this context, oxygen levels must be maintained in articular cartilage to promote the differentiation, viability, and proliferation of chondrocytes due to the low level of oxygen presence in this region. Although some technologies employ oxygen-generating materials to add sufficient oxygen levels, the limitations and challenges of current technologies include the lack of controlled, sustained, and prolonged release of the oxygen. Moreover, the fabrication methods may leave some impurities or residues resulting in toxicity to the cells. "Click" chemistry is a facile, versatile, and compatible chemical strategy to engineer hydrogels for tissue engineering applications. Herein, we disclose the engineering of oxygen-generating microparticles in chondrocytes-laden hydrogels through a versatile catalyst-free tetrazine and norbornene inverse electron demand Diels‒Alder (iEDDA) click reaction. The hydrogels combine chondroitin sulfate (CS) and poly(ethylene glycol) (PEG) crosslinked in situ, displaying tunable rheological and mechanical properties, for sustained and prolonged oxygen-release. Gene expression analysis of the chondrocytes by real-time reverse transcription polymerase chain reaction (RT-PCR) demonstrated promising cell response within the engineered hydrogel.
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Affiliation(s)
- Erlane de Sousa Araújo
- LIMAV-Interdisciplinary Laboratory for Advanced Materials, BioMatLab, UFPI - Federal University of Piaui, Teresina, PI, 64049-550, Brazil
| | - Thiago Domingues Stocco
- Faculty of Medical Sciences, Unicamp - State University of Campinas, Campinas, SP, 13083-877, Brazil; University of Santo Amaro, São Paulo, SP, 04829-300, Brazil
| | - Gustavo Fernandes de Sousa
- LIMAV-Interdisciplinary Laboratory for Advanced Materials, BioMatLab, UFPI - Federal University of Piaui, Teresina, PI, 64049-550, Brazil
| | - Samson Afewerki
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, United States; Division of Health Sciences and Technology, Harvard University ‒ Massachusetts Institute of Technology (MIT), Cambridge, MA, 02139, United States.
| | | | - Marcus Alexandre Finzi Corat
- Multidisciplinary Center for Biological Research, Unicamp - State University of Campinas, Campinas, SP, 13083-877, Brazil
| | | | - Thiago Ferreira Cândido Lima Verde
- LIMAV-Interdisciplinary Laboratory for Advanced Materials, BioMatLab, UFPI - Federal University of Piaui, Teresina, PI, 64049-550, Brazil
| | - Mayara Cristina Moreira Silva
- Multidisciplinary Center for Biological Research, Unicamp - State University of Campinas, Campinas, SP, 13083-877, Brazil
| | - Anderson Oliveira Lobo
- LIMAV-Interdisciplinary Laboratory for Advanced Materials, BioMatLab, UFPI - Federal University of Piaui, Teresina, PI, 64049-550, Brazil; Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, United States.
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A structure-supporting, self-healing, and high permeating hydrogel bioink for establishment of diverse homogeneous tissue-like constructs. Bioact Mater 2021; 6:3580-3595. [PMID: 33869899 PMCID: PMC8024533 DOI: 10.1016/j.bioactmat.2021.03.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 03/06/2021] [Accepted: 03/06/2021] [Indexed: 12/17/2022] Open
Abstract
The ready-to-use, structure-supporting hydrogel bioink can shorten the time for ink preparation, ensure cell dispersion, and maintain the preset shape/microstructure without additional assistance during printing. Meanwhile, ink with high permeability might facilitate uniform cell growth in biological constructs, which is beneficial to homogeneous tissue repair. Unfortunately, current bioinks are hard to meet these requirements simultaneously in a simple way. Here, based on the fast dynamic crosslinking of aldehyde hyaluronic acid (AHA)/N-carboxymethyl chitosan (CMC) and the slow stable crosslinking of gelatin (GEL)/4-arm poly(ethylene glycol) succinimidyl glutarate (PEG-SG), we present a time-sharing structure-supporting (TSHSP) hydrogel bioink with high permeability, containing 1% AHA, 0.75% CMC, 1% GEL and 0.5% PEG-SG. The TSHSP hydrogel can facilitate printing with proper viscoelastic property and self-healing behavior. By crosslinking with 4% PEG-SG for only 3 min, the integrity of the cell-laden construct can last for 21 days due to the stable internal and external GEL/PEG-SG networks, and cells manifested long-term viability and spreading morphology. Nerve-like, muscle-like, and cartilage-like in vitro constructs exhibited homogeneous cell growth and remarkable biological specificities. This work provides not only a convenient and practical bioink for tissue engineering, targeted cell therapy, but also a new direction for hydrogel bioink development. A time-sharing structure-supporting (TSHSP) bioink based on gelation time difference between two gelling systems. The high permeability of TSHSP hydrogel is the basis for effective matter exchange. The TSHSP hydrogel facilitates room temperature printing with proper viscoelastic property and self-healing behavior. Cells manifest long-term viability and spreading morphology in bioprinted TSHSP constructs. In vitro tissue-like TSHSP constructs exhibit homogeneous cell growth and remarkable biological specificities.
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Liau LL, Hassan MNFB, Tang YL, Ng MH, Law JX. Feasibility of Human Platelet Lysate as an Alternative to Foetal Bovine Serum for In Vitro Expansion of Chondrocytes. Int J Mol Sci 2021; 22:ijms22031269. [PMID: 33525349 PMCID: PMC7865277 DOI: 10.3390/ijms22031269] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/19/2021] [Accepted: 01/22/2021] [Indexed: 01/22/2023] Open
Abstract
Osteoarthritis (OA) is a degenerative joint disease that affects a lot of people worldwide. Current treatment for OA mainly focuses on halting or slowing down the disease progress and to improve the patient’s quality of life and functionality. Autologous chondrocyte implantation (ACI) is a new treatment modality with the potential to promote regeneration of worn cartilage. Traditionally, foetal bovine serum (FBS) is used to expand the chondrocytes. However, the use of FBS is not ideal for the expansion of cells mean for clinical applications as it possesses the risk of animal pathogen transmission and animal protein transfer to host. Human platelet lysate (HPL) appears to be a suitable alternative to FBS as it is rich in biological factors that enhance cell proliferation. Thus far, HPL has been found to be superior in promoting chondrocyte proliferation compared to FBS. However, both HPL and FBS cannot prevent chondrocyte dedifferentiation. Discrepant results have been reported for the maintenance of chondrocyte redifferentiation potential by HPL. These differences are likely due to the diversity in the HPL preparation methods. In the future, more studies on HPL need to be performed to develop a standardized technique which is capable of producing HPL that can maintain the chondrocyte redifferentiation potential reproducibly. This review discusses the in vitro expansion of chondrocytes with FBS and HPL, focusing on its capability to promote the proliferation and maintain the chondrogenic characteristics of chondrocytes.
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Affiliation(s)
- Ling Ling Liau
- Physiology Department, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Kuala Lumpur 56000, Malaysia;
| | - Muhammad Najib Fathi bin Hassan
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Kuala Lumpur 56000, Malaysia; (M.N.F.b.H.); (M.H.N.)
| | - Yee Loong Tang
- Pathology Department, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Kuala Lumpur 56000, Malaysia;
| | - Min Hwei Ng
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Kuala Lumpur 56000, Malaysia; (M.N.F.b.H.); (M.H.N.)
| | - Jia Xian Law
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Kuala Lumpur 56000, Malaysia; (M.N.F.b.H.); (M.H.N.)
- Correspondence: ; Tel.: +603-9145-7677; Fax: +603-9145-7678
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12
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Krueger S, Riess A, Jonitz-Heincke A, Weizel A, Seyfarth A, Seitz H, Bader R. Establishment of a New Device for Electrical Stimulation of Non-Degenerative Cartilage Cells In Vitro. Int J Mol Sci 2021; 22:ijms22010394. [PMID: 33401406 PMCID: PMC7794805 DOI: 10.3390/ijms22010394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/17/2020] [Accepted: 12/29/2020] [Indexed: 12/14/2022] Open
Abstract
In cell-based therapies for cartilage lesions, the main problem is still the formation of fibrous cartilage, caused by underlying de-differentiation processes ex vivo. Biophysical stimulation is a promising approach to optimize cell-based procedures and to adapt them more closely to physiological conditions. The occurrence of mechano-electrical transduction phenomena within cartilage tissue is physiological and based on streaming and diffusion potentials. The application of exogenous electric fields can be used to mimic endogenous fields and, thus, support the differentiation of chondrocytes in vitro. For this purpose, we have developed a new device for electrical stimulation of chondrocytes, which operates on the basis of capacitive coupling of alternating electric fields. The reusable and sterilizable stimulation device allows the simultaneous use of 12 cavities with independently applicable fields using only one main supply. The first parameter settings for the stimulation of human non-degenerative chondrocytes, seeded on collagen type I elastin-based scaffolds, were derived from numerical electric field simulations. Our first results suggest that applied alternating electric fields induce chondrogenic re-differentiation at the gene and especially at the protein level of human de-differentiated chondrocytes in a frequency-dependent manner. In future studies, further parameter optimizations will be performed to improve the differentiation capacity of human cartilage cells.
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Affiliation(s)
- Simone Krueger
- Biomechanics and Implant Technology Research Laboratory, Department of Orthopedics, Rostock University Medical Center, 18057 Rostock, Germany; (A.J.-H.); (A.S.); (R.B.)
- Department Life, Light & Matter, University of Rostock, 18051 Rostock, Germany;
- Correspondence: (S.K.); (A.R.)
| | - Alexander Riess
- Chair of Microfluidics, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, 18051 Rostock, Germany;
- Correspondence: (S.K.); (A.R.)
| | - Anika Jonitz-Heincke
- Biomechanics and Implant Technology Research Laboratory, Department of Orthopedics, Rostock University Medical Center, 18057 Rostock, Germany; (A.J.-H.); (A.S.); (R.B.)
| | - Alina Weizel
- Chair of Microfluidics, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, 18051 Rostock, Germany;
| | - Anika Seyfarth
- Biomechanics and Implant Technology Research Laboratory, Department of Orthopedics, Rostock University Medical Center, 18057 Rostock, Germany; (A.J.-H.); (A.S.); (R.B.)
| | - Hermann Seitz
- Department Life, Light & Matter, University of Rostock, 18051 Rostock, Germany;
- Chair of Microfluidics, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, 18051 Rostock, Germany;
| | - Rainer Bader
- Biomechanics and Implant Technology Research Laboratory, Department of Orthopedics, Rostock University Medical Center, 18057 Rostock, Germany; (A.J.-H.); (A.S.); (R.B.)
- Department Life, Light & Matter, University of Rostock, 18051 Rostock, Germany;
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13
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Tissue Engineering of Cartilage Using a Random Positioning Machine. Int J Mol Sci 2020; 21:ijms21249596. [PMID: 33339388 PMCID: PMC7765923 DOI: 10.3390/ijms21249596] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/09/2020] [Accepted: 12/14/2020] [Indexed: 12/12/2022] Open
Abstract
Articular cartilage is a skeletal tissue of avascular nature and limited self-repair capacity. Cartilage-degenerative diseases, such as osteoarthritis (OA), are difficult to treat and often necessitate joint replacement surgery. Cartilage is a tough but flexible material and relatively easy to damage. It is, therefore, of high interest to develop methods allowing chondrocytes to recolonize, to rebuild the cartilage and to restore joint functionality. Here we studied the in vitro production of cartilage-like tissue using human articular chondrocytes exposed to the Random Positioning Machine (RPM), a device to simulate certain aspects of microgravity on Earth. To screen early adoption reactions of chondrocytes exposed to the RPM, we performed quantitative real-time PCR analyses after 24 h on chondrocytes cultured in DMEM/F-12. A significant up-regulation in the gene expression of IL6, RUNX2, RUNX3, SPP1, SOX6, SOX9, and MMP13 was detected, while the levels of IL8, ACAN, PRG4, ITGB1, TGFB1, COL1A1, COL2A1, COL10A1, SOD3, SOX5, MMP1, and MMP2 mRNAs remained unchanged. The STRING (Search Tool for the Retrieval of Interacting Genes/Proteins) analysis demonstrated among others the importance of these differentially regulated genes for cartilage formation. Chondrocytes grown in DMEM/F-12 medium produced three-dimensional (3D) spheroids after five days without the addition of scaffolds. On day 28, the produced tissue constructs reached up to 2 mm in diameter. Using specific chondrocyte growth medium, similar results were achieved within 14 days. Spheroids from both types of culture media showed the typical cartilage morphology with aggrecan positivity. Intermediate filaments form clusters under RPM conditions as detected by vimentin staining after 7 d and 14 d. Larger meshes appear in the network in 28-day samples. Furthermore, they were able to form a confluent chondrocyte monolayer after being transferred back into cell culture flasks in 1 g conditions showing their suitability for transplantation into joints. Our results demonstrate that the cultivation medium has a direct influence on the velocity of tissue formation and tissue composition. The spheroids show properties that make them interesting candidates for cellular cartilage regeneration approaches in trauma and OA therapy.
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Semba JA, Mieloch AA, Rybka JD. Introduction to the state-of-the-art 3D bioprinting methods, design, and applications in orthopedics. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.bprint.2019.e00070] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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15
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Sieber S, Michaelis M, Gühring H, Lindemann S, Gigout A. Importance of Osmolarity and Oxygen Tension for Cartilage Tissue Engineering. Biores Open Access 2020; 9:106-115. [PMID: 32257626 PMCID: PMC7133430 DOI: 10.1089/biores.2020.0009] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
For cartilage repair in vivo or evaluation of new therapeutic approaches in vitro, the generation of functional cartilage tissue is of crucial importance and can only be achieved if the phenotype of the chondrocytes is preserved. Three-dimensional (3D) cell culture is broadly used for this purpose. However, adapting culture parameters like the oxygen tension or the osmolarity to their physiological values is often omitted. Indeed, articular cartilage is an avascular tissue subjected to reduced oxygen tension and presenting and increased osmolarity compared with most other tissues. In this study, we aimed at evaluating the effect of a physiological oxygen tension (3% instead of 21%) and physiological osmolarity (430 vs. 330 mOsm in nonadjusted DMEM) and the combination of both on the cell proliferation, matrix production, and the phenotype of porcine chondrocytes in a scaffold-free 3D culture system. We observed that a physiological osmolarity had no effect on cell proliferation and matrix production but positively influences the chondrocyte phenotype. A physiological oxygen level prevented cell proliferation but resulted in an increased matrix content/million cells and had a positive influence on the chondrocyte phenotype as well. The strongest benefit was reached with the combination of both physiological osmolarity and oxygen levels; with these conditions, type I collagen expression became undetectable. In addition, at 3% O2 the chondrocytes-matrix constructs were found to more closely resemble native cartilage regarding the matrix-to-cell ratio. In conclusion, this study clearly demonstrates the benefit of using physiological oxygen tension and osmolarity in cartilage tissue engineering with the combination of both showing the strongest benefit on the chondrocyte phenotype.
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Affiliation(s)
- Stefan Sieber
- Osteoarthritis Research, Merck KGaA, Darmstadt, Germany
| | | | - Hans Gühring
- Osteoarthritis Research, Merck KGaA, Darmstadt, Germany
| | | | - Anne Gigout
- Osteoarthritis Research, Merck KGaA, Darmstadt, Germany
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16
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Zhang QY, Bai JD, Wu XA, Liu XN, Zhang M, Chen WY. Microniche geometry modulates the mechanical properties and calcium signaling of chondrocytes. J Biomech 2020; 104:109729. [PMID: 32147239 DOI: 10.1016/j.jbiomech.2020.109729] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 02/24/2020] [Accepted: 02/25/2020] [Indexed: 12/24/2022]
Abstract
In articular cartilage, the function of chondrocytes is strongly related to their zone-specific microniche geometry defined by pericellular matrix. Microniche geometry is critical for regulating the phenotype and function of the chondrocyte in native cartilage and tissue engineering constructs. However the role of microniche geometry in the mechanical properties and calcium signaling of chondrocytes remains unknown. To recapitulate microniche geometry at single-cell level, we engineered three basic physiological-related polydimethylsiloxane (PDMS) microniches geometries fabricated using soft lithography. We cultured chondrocytes in these microniche geometries and quantified cell mechanical properties using atomic force microscopy (AFM). Fluorescent calcium indicator was used to record and quantify cytosolic Ca2+ oscillation of chondrocytes in different geometries. Our work showed that microniche geometry modulated the mechanical behavior and calcium signaling of chondrocytes. The ellipsoidal microniches significantly enhanced the mechanical properties of chondrocytes compared to spheroidal microniche. Additionally, ellipsoidal microniches can markedly improved the amplitude but weakened the frequency of cytosolic Ca2+ oscillation in chondrocytes than spheroidal microniche. Our work might reveal a novel understanding of chondrocyte mechanotransduction and therefore be useful for designing cell-instructive scaffolds for functional cartilage tissue engineering.
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Affiliation(s)
- Quan-You Zhang
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Department of Orthopaedics, the Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan 030001, China.
| | - Jia-Dong Bai
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Xiao-An Wu
- Department of Physiology and Biophysics, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Xiao-Na Liu
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Min Zhang
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Wei-Yi Chen
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China.
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Ji X, Lei Z, Yuan M, Zhu H, Yuan X, Liu W, Pu H, Jiang J, Zhang Y, Jiang X, Xiao J. Cartilage repair mediated by thermosensitive photocrosslinkable TGFβ1-loaded GM-HPCH via immunomodulating macrophages, recruiting MSCs and promoting chondrogenesis. Theranostics 2020; 10:2872-2887. [PMID: 32194841 PMCID: PMC7052899 DOI: 10.7150/thno.41622] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 01/14/2020] [Indexed: 12/22/2022] Open
Abstract
Repairing cartilage defects using thermosensitive hydrogels is an attractive treatment strategy, but the poor mechanical properties and limited understanding of the interactions between hydrogels and cells limit their application. Methods: In this study, a thermosensitive hydroxypropyl chitin hydrogel (HPCH) was functionalized with methacrylate groups to synthesize photocrosslinkable glycidyl methacrylate-modified HPCH (GM-HPCH). GM-HPCH could form a gel in situ through a thermosensitive sol-gel transition and its mechanical properties can be improved by UV irradiation. Cell viability, cell adhesion and anti-apoptosis activity of GM-HPCH were evaluated. Transforming growth factor-β1 (TGFβ1) was introduced into the GM-HPCH hydrogel to fabricate the composite hydrogel. The macrophage immunomodulation, MSC recruitment and chondrogenesis of the composite hydrogel were evaluated. Results: With high biocompatibility, GM-HPCH could protect chondrocytes from apoptosis. Both the in vitro and in vivo experiments showed that GM-HPCH + TGFβ1 shifted the recruited macrophages from M1 to M2 and promoted chondrogenic gene expression. Additionally, the composite hydrogel could promote the migration of marrow stromal cells (MSCs) in the Transwell test and increase migrated gene expression. The fluorescent tracking of MSCs confirmed MSC homing in the rat chondral defect with the help of GM-HPCH. The macroscopic evaluation and histological results at 6 weeks and 12 weeks postsurgery showed that GM-HPCH + TGFβ1 can achieve superior cartilage healing. Conclusions: The GM-HPCH + TGFβ1 hydrogel effectively promoted cartilage repair via immunomodulating macrophages, recruiting MSCs and promoting chondrogenesis; thus it is a promising injectable hydrogel for cartilage regeneration.
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Affiliation(s)
- Xiongfa Ji
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Department of Orthopedics, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China
| | - Zehua Lei
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Meng Yuan
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Hao Zhu
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xi Yuan
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wenbin Liu
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Hongxu Pu
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jiawei Jiang
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yu Zhang
- Department of Orthopedics, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China
| | - Xulin Jiang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Jun Xiao
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
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Udomluck N, Kim SH, Cho H, Park JY, Park H. Three-dimensional cartilage tissue regeneration system harnessing goblet-shaped microwells containing biocompatible hydrogel. Biofabrication 2019; 12:015019. [PMID: 31783391 DOI: 10.1088/1758-5090/ab5d3e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Differentiation of stem cells into chondrocytes has been studied for the engineering of cartilage tissue. However, stem cells cultured two-dimensionally have limited ability to differentiate into chondrocytes, which led to the development of three-dimensional culture systems. A recently developed microtechnological method uses microwells as a tool to form uniformly sized spheroids. In this study, we fabricated an array (10 × 10) of goblet-shaped microwells based on polydimethylsiloxane for spheroid culture. A central processing unit (CPU) was used to form holes, and metallic beads were used to form hemispherical microwell geometry. The holes were filled with Pluronic F-127 to prevent cells from sinking through the holes and allowing the cells to form spheroids. Viability and chondrogenic differentiation of human adipose-derived stem cells were assessed. The fabrication method using a micro-pin mold and metallic beads is easy and cost-effective. Our three-dimensional spheroid culture system optimizes the efficient differentiation of cells and has various applications, such as drug delivery, cell therapy, and tissue engineering.
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Affiliation(s)
- Nopphadol Udomluck
- School of Integrative Engineering, College of Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
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19
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Krueger S, Achilles S, Zimmermann J, Tischer T, Bader R, Jonitz-Heincke A. Re-Differentiation Capacity of Human Chondrocytes in Vitro Following Electrical Stimulation with Capacitively Coupled Fields. J Clin Med 2019; 8:E1771. [PMID: 31652962 PMCID: PMC6912508 DOI: 10.3390/jcm8111771] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/17/2019] [Accepted: 10/22/2019] [Indexed: 12/27/2022] Open
Abstract
Treatment of cartilage lesions remains a clinical challenge. Therefore, biophysical stimuli like electric fields seem to be a promising tool for chondrocytic differentiation and treatment of cartilage lesions. In this in vitro study, we evaluated the effects of low intensity capacitively coupled electric fields with an alternating voltage of 100 mVRMS (corresponds to 5.2 × 10-5 mV/cm) or 1 VRMS (corresponds to 5.2 × 10-4 mV/cm) with 1 kHz, on human chondrocytes derived from osteoarthritic (OA) and non-degenerative hyaline cartilage. A reduction of metabolic activity after electrical stimulation was more pronounced in non-degenerative cells. In contrast, DNA contents in OA cells were significantly decreased after electrical stimulation. A difference between 100 mVRMS and 1 VRMS was not detected. However, a voltage-dependent influence on gene and protein expression was observed. Both cell types showed increased synthesis rates of collagen (Col) II, glycosaminoglycans (GAG), and Col I protein following stimulation with 100 mVRMS, whereas this increase was clearly higher in OA cells. Our results demonstrated the sensitization of chondrocytes by alternating electric fields, especially at 100 mVRMS, which has an impact on chondrocytic differentiation capacity. However, analysis of further electrical stimulation parameters should be done to induce optimal hyaline characteristics of ex vivo expanded human chondrocytes.
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Affiliation(s)
- Simone Krueger
- Department of Orthopedics, Rostock University Medical Centre, 18057 Rostock, Germany.
| | - Sophie Achilles
- Department of Orthopedics, Rostock University Medical Centre, 18057 Rostock, Germany.
| | - Julius Zimmermann
- Institute of General Electrical Engineering, University of Rostock, 18059 Rostock, Germany.
| | - Thomas Tischer
- Department of Orthopedics, Rostock University Medical Centre, 18057 Rostock, Germany.
| | - Rainer Bader
- Department of Orthopedics, Rostock University Medical Centre, 18057 Rostock, Germany.
| | - Anika Jonitz-Heincke
- Department of Orthopedics, Rostock University Medical Centre, 18057 Rostock, Germany.
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20
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Jiménez G, Venkateswaran S, López-Ruiz E, Perán M, Pernagallo S, Díaz-Monchón JJ, Canadas RF, Antich C, Oliveira JM, Callanan A, Walllace R, Reis RL, Montañez E, Carrillo E, Bradley M, Marchal JA. A soft 3D polyacrylate hydrogel recapitulates the cartilage niche and allows growth-factor free tissue engineering of human articular cartilage. Acta Biomater 2019; 90:146-156. [PMID: 30910621 DOI: 10.1016/j.actbio.2019.03.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 03/19/2019] [Accepted: 03/20/2019] [Indexed: 11/30/2022]
Abstract
Cartilage degeneration or damage treatment is still a challenge, but, tissue engineering strategies, which combine cell therapy strategies, which combine cell therapy and scaffolds, and have emerged as a promising new approach. In this regard, polyurethanes and polyacrylates polymers have been shown to have clinical potential to treat osteochondral injuries. Here, we have used polymer microarrays technology to screen 380 different polyurethanes and polyacrylates polymers. The top polymers with potential to maintain chondrocyte viability were selected, with scale-up studies performed to evaluate their ability to support chondrocyte proliferation during long-term culture, while maintaining their characteristic phenotype. Among the selected polymers, poly (methylmethacrylate-co-methacrylic acid), showed the highest level of chondrogenic potential and was used to create a 3D hydrogel. Ultrastructural morphology, microstructure and mechanical testing of this novel hydrogel revealed robust characteristics to support chondrocyte growth. Furthermore, in vitro and in vivo biological assays demonstrated that chondrocytes cultured on the hydrogel had the capacity to produce extracellular matrix similar to hyaline cartilage, as shown by increased expression of collagen type II, aggrecan and Sox9, and the reduced expression of the fibrotic marker's collagen type I. In conclusion, hydrogels generated from poly (methylmethacrylate-co-methacrylic acid) created the appropriate niche for chondrocyte growth and phenotype maintenance and might be an optimal candidate for cartilage tissue-engineering applications. SIGNIFICANCE STATEMENT: Articular cartilage has limited self-repair ability due to its avascular nature, therefore tissue engineering strategies have emerged as a promising new approach. Synthetic polymers displaygreat potential and are widely used in the clinical setting. In our study, using the polymer microarray technique a novel type of synthetic polyacrylate was identified, that was converted into hydrogels for articular cartilage regeneration studies. The hydrogel based on poly (methylmethacrylate-co-methacrylic acid-co-PEG-diacrylate) had a controlable ultrastructural morphology, microstructure (porosity) and mechanical properties (stiffness) appropriate for cartilage engineering. Our hydrogel created the optimal niche for chondrocyte growth and phenotype maintenance for long-term culture, producing a hyaline-like cartilage extracellular matrix. We propose that this novel polyacrylate hydrogel could be an appropriate support to help in the treatment efficient cartilage regeneration.
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Affiliation(s)
- Gema Jiménez
- Biopathology and Regenerative Medicine Institute, Centre for Biomedical Research, University of Granada, 18100 Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Universidad de Granada, 18100 Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, 18016 Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain
| | - Seshasailam Venkateswaran
- School of Chemistry, EaStCHEM, University of Edinburgh, King's Buildings, West Mains Road, Edinburgh EH9 3JJ, UK
| | - Elena López-Ruiz
- Biopathology and Regenerative Medicine Institute, Centre for Biomedical Research, University of Granada, 18100 Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, 18016 Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain; Department of Health Sciences, University of Jaén, Jaén E-23071, Spain
| | - Macarena Perán
- Biopathology and Regenerative Medicine Institute, Centre for Biomedical Research, University of Granada, 18100 Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain; Department of Health Sciences, University of Jaén, Jaén E-23071, Spain
| | - Salvatore Pernagallo
- DestiNAGenomica S.L. Parque Tecnológico Ciencias de la Salud, Avenida de la Innovación 1, Edificio Business Innovation Centre, 18016 Granada, Spain
| | - Juan J Díaz-Monchón
- Pfizer-Universidad de Granada-Junta de Andalucía Centre for Genomics and Oncological Research (GENYO), Parque Tecnológico de Ciencias de la Salud, 18016 Granada, Spain; Faculty of Pharmacy, University of Granada, 18071 Granada, Spain
| | - Raphael F Canadas
- 3Bs Research Group, Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4805-017 Barco, Guimarães, Portugal; ICVS/3Bs, PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Cristina Antich
- Biopathology and Regenerative Medicine Institute, Centre for Biomedical Research, University of Granada, 18100 Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Universidad de Granada, 18100 Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, 18016 Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain
| | - Joaquím M Oliveira
- 3Bs Research Group, Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4805-017 Barco, Guimarães, Portugal; ICVS/3Bs, PT Government Associate Laboratory, Braga, Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
| | - Anthony Callanan
- Institute for Bioengineering, School of Engineering, University of Edinburgh, EH93JL Edinburgh, UK
| | - Robert Walllace
- Department of Orthopaedics, The University of Edinburgh, EH16 4SB Edinburgh, UK
| | - Rui L Reis
- 3Bs Research Group, Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4805-017 Barco, Guimarães, Portugal; ICVS/3Bs, PT Government Associate Laboratory, Braga, Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
| | - Elvira Montañez
- Department of Orthopedic Surgery and Traumatology, Virgen de la Victoria University Hospital, 29010 Málaga, Spain
| | - Esmeralda Carrillo
- Biopathology and Regenerative Medicine Institute, Centre for Biomedical Research, University of Granada, 18100 Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Universidad de Granada, 18100 Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, 18016 Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain
| | - Mark Bradley
- School of Chemistry, EaStCHEM, University of Edinburgh, King's Buildings, West Mains Road, Edinburgh EH9 3JJ, UK.
| | - Juan A Marchal
- Biopathology and Regenerative Medicine Institute, Centre for Biomedical Research, University of Granada, 18100 Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Universidad de Granada, 18100 Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, 18016 Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain
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Graceffa V, Vinatier C, Guicheux J, Stoddart M, Alini M, Zeugolis DI. Chasing Chimeras - The elusive stable chondrogenic phenotype. Biomaterials 2018; 192:199-225. [PMID: 30453216 DOI: 10.1016/j.biomaterials.2018.11.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 11/02/2018] [Accepted: 11/09/2018] [Indexed: 12/27/2022]
Abstract
The choice of the best-suited cell population for the regeneration of damaged or diseased cartilage depends on the effectiveness of culture conditions (e.g. media supplements, three-dimensional scaffolds, mechanical stimulation, oxygen tension, co-culture systems) to induce stable chondrogenic phenotype. Herein, advances and shortfalls in in vitro, preclinical and clinical setting of various in vitro microenvironment modulators on maintaining chondrocyte phenotype or directing stem cells towards chondrogenic lineage are critically discussed. Chondrocytes possess low isolation efficiency, limited proliferative potential and rapid phenotypic drift in culture. Mesenchymal stem cells are relatively readily available, possess high proliferation potential, exhibit great chondrogenic differentiation capacity, but they tend to acquire a hypertrophic phenotype when exposed to chondrogenic stimuli. Embryonic and induced pluripotent stem cells, despite their promising in vitro and preclinical data, are still under-investigated. Although a stable chondrogenic phenotype remains elusive, recent advances in in vitro microenvironment modulators are likely to develop clinically- and commercially-relevant therapies in the years to come.
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Affiliation(s)
- Valeria Graceffa
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Claire Vinatier
- INSERMU1229, Regenerative Medicine and Skeleton (RMeS), University of Nantes, UFR Odontologie & CHU Nantes, PHU 4 OTONN, 44042 Nantes, France
| | - Jerome Guicheux
- INSERMU1229, Regenerative Medicine and Skeleton (RMeS), University of Nantes, UFR Odontologie & CHU Nantes, PHU 4 OTONN, 44042 Nantes, France
| | - Martin Stoddart
- AO Research Institute, Clavadelerstrasse 8, 7270 Davos, Switzerland
| | - Mauro Alini
- AO Research Institute, Clavadelerstrasse 8, 7270 Davos, Switzerland
| | - Dimitrios I Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland.
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Bergholt NL, Foss M, Saeed A, Gadegaard N, Lysdahl H, Lind M, Foldager CB. Surface chemistry, substrate, and topography guide the behavior of human articular chondrocytes cultured in vitro. J Biomed Mater Res A 2018; 106:2805-2816. [PMID: 29907992 DOI: 10.1002/jbm.a.36467] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/22/2018] [Accepted: 05/22/2018] [Indexed: 01/18/2023]
Abstract
Understanding the behavior of chondrocytes in contact with artificial culture surfaces is becoming increasingly important in attaining appropriate ex vivo culture conditions of chondrocytes in cartilage regeneration. Chondrocyte transplantation-based cartilage repair requires efficiently expanded chondrocytes, and the culture surface plays an important role in guiding the behavior of the cell. Micro- and nano-engineered surfaces make it possible to modulate cell behavior. We hypothesized that the combined influence of topography, substrate, and surface chemistry may affect the chondrocyte culturing in terms of proliferation and phenotypic means. Human chondrocytes were cultured on polystyrene fabricated microstructures, flat polydimethylsiloxane (PDMS), or polystyrene treated with fibronectin or oxygen plasma and cultured for 1, 4, 7, and 10 days. The behavior of chondrocytes was evaluated by proliferation, viability, chondrogenic gene expression, and cell morphology. Contrary to our hypothesis, microstructures in polystyrene did not significantly influence the behavior of chondrocytes neither under normoxic- nor hypoxic conditions. However, changes in the substrate stiffness and surface chemistry were found to influence cell viability, gene expression, and morphology of human chondrocytes. Oxygen plasma treatment was the most important parameter followed by the softer substrate type PDMS. The findings indicate the culture of human chondrocytes on softer substratum and surface activation by oxygen plasma may prevent dedifferentiation and may improve chondrocyte transplantation-based cartilage repair. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 2805-2816, 2018.
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Affiliation(s)
| | - Morten Foss
- Interdisciplinary Nanoscience Center, iNANO, University Aarhus, Aarhus, Denmark
| | - Anwer Saeed
- Division of Biomedical Engineering, University of Glasgow, Glasgow, G12 8LT, United Kingdom
| | - Nikolaj Gadegaard
- Division of Biomedical Engineering, University of Glasgow, Glasgow, G12 8LT, United Kingdom
| | - Helle Lysdahl
- Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Martin Lind
- Sports Trauma Clinic, Aarhus University Hospital, Aarhus, Denmark
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Hemmati-Sadeghi S, Ringe J, Dehne T, Haag R, Sittinger M. Hyaluronic Acid Influence on Normal and Osteoarthritic Tissue-Engineered Cartilage. Int J Mol Sci 2018; 19:ijms19051519. [PMID: 29783732 PMCID: PMC5983669 DOI: 10.3390/ijms19051519] [Citation(s) in RCA: 8] [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: 04/25/2018] [Revised: 05/08/2018] [Accepted: 05/15/2018] [Indexed: 12/27/2022] Open
Abstract
The aim of this study is to identify gene expression profiles associated with hyaluronic acid (HA) treatment of normal and osteoarthritis (OA)-like tissue-engineered cartilage. 3D cartilage micromasses were treated with tumour necrosis factor-α (TNF-α) (OA-inducer) and/or HA for 7 days. Viability was examined by PI/FDA staining. To document extracellular matrix (ECM) formation, glycosaminoglycans (GAG) were stained with Safranin-O and cartilage-specific type II collagen was detected immunohistochemically. Genome-wide gene expression was determined using microarray analysis. Normal and OA-like micromasses remained vital and showed a spherical morphology and homogenous cell distribution regardless of the treatment. There was no distinct difference in immunolabeling for type II collagen. Safranin-O staining demonstrated a typical depletion of GAG in TNF-α-treated micromasses (−73%), although the extent was limited in the presence of HA (−39%). The microarray data showed that HA can influence the cartilage metabolism via upregulation of TIMP3 in OA-like condition. The upregulation of VEGFA and ANKRD37 genes implies a supportive role of HA in cartilage maturation and survival. The results of this study validate the feasibility of the in vitro OA model for the investigation of HA. On the cellular level, no inhibiting or activating effect of HA was shown. Microarray data demonstrated a minor impact of HA on gene expression level.
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Affiliation(s)
- Shabnam Hemmati-Sadeghi
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin-Brandenburg School for Regenerative Therapies, 10117 Berlin, Germany.
- Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Germany.
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Tissue Engineering Laboratory, Berlin-Brandenburg Center for Regenerative Therapies & Department of Rheumatology and Clinical Immunology, 10117 Berlin, Germany.
| | - Jochen Ringe
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Tissue Engineering Laboratory, Berlin-Brandenburg Center for Regenerative Therapies & Department of Rheumatology and Clinical Immunology, 10117 Berlin, Germany.
| | - Tilo Dehne
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Tissue Engineering Laboratory, Berlin-Brandenburg Center for Regenerative Therapies & Department of Rheumatology and Clinical Immunology, 10117 Berlin, Germany.
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Germany.
| | - Michael Sittinger
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Tissue Engineering Laboratory, Berlin-Brandenburg Center for Regenerative Therapies & Department of Rheumatology and Clinical Immunology, 10117 Berlin, Germany.
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Effect of Decellularized Cartilage Bovine Scaffold and Hypoxic Condition on Stem Cell Differentiation to Chondrocyte: An <i>In Vitro</i> Study. JOURNAL OF BIOMIMETICS BIOMATERIALS AND BIOMEDICAL ENGINEERING 2018. [DOI: 10.4028/www.scientific.net/jbbbe.35.67] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Autologous Chondrocyte Implantation (ACI) has been established for years to treat cartilage defect. Application of tissue engineering has advantages over ACI as tissue engineering requires simpler procedures without leaving morbidity at the donor site. Decellularized bovine cartilage scaffold and hypoxic stem cell differentiation were used in this in vitro experimental study. Comparative test was done between three study groups using bone marrow mesenchymal stem cells treated in three different conditions: growth factor-rich chondrogenic medium, scaffold without growth factor, and combination of both. Each group was given two oxygen tension conditions of normoxia and hypoxic within phase of stem cell differentiation. Immunohistochemical examinations on SOX9, RUNX2, and collagen type II were done for evaluation. After 5-week treatment, the result showed that the highest expression SOX9 and collagen type II were found within the group that used the combination of both scaffold and chondrogenic medium in hypoxic condition. Collagen type II expression in scaffold without additional growth factor showed no statistically significant difference compared with the combination group in hypoxic condition. Cartilage tissue engineering has proven its effectiveness for cartilage regeneration. Decellularized biomaterial scaffold limited the use of growth factor resulting in better cost and resource efficiency.
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25
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Zhang H, Barralet JE. Mimicking oxygen delivery and waste removal functions of blood. Adv Drug Deliv Rev 2017; 122:84-104. [PMID: 28214553 DOI: 10.1016/j.addr.2017.02.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 02/13/2017] [Accepted: 02/13/2017] [Indexed: 12/20/2022]
Abstract
In addition to immunological and wound healing cell and platelet delivery, ion stasis and nutrient supply, blood delivers oxygen to cells and tissues and removes metabolic wastes. For decades researchers have been trying to develop approaches that mimic these two immediately vital functions of blood. Oxygen is crucial for the long-term survival of tissues and cells in vertebrates. Hypoxia (oxygen deficiency) and even at times anoxia (absence of oxygen) can occur during organ preservation, organ and cell transplantation, wound healing, in tumors and engineering of tissues. Different approaches have been developed to deliver oxygen to tissues and cells, including hyperbaric oxygen therapy (HBOT), normobaric hyperoxia therapy (NBOT), using biochemical reactions and electrolysis, employing liquids with high oxygen solubility, administering hemoglobin, myoglobin and red blood cells (RBCs), introducing oxygen-generating agents, using oxygen-carrying microparticles, persufflation, and peritoneal oxygenation. Metabolic waste accumulation is another issue in biological systems when blood flow is insufficient. Metabolic wastes change the microenvironment of cells and tissues, influence the metabolic activities of cells, and ultimately cause cell death. This review examines advances in blood mimicking systems in the field of biomedical engineering in terms of oxygen delivery and metabolic waste removal.
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26
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Sobol E, Baum O, Shekhter A, Wachsmann-Hogiu S, Shnirelman A, Alexandrovskaya Y, Sadovskyy I, Vinokur V. Laser-induced micropore formation and modification of cartilage structure in osteoarthritis healing. JOURNAL OF BIOMEDICAL OPTICS 2017; 22:91515. [PMID: 28564689 DOI: 10.1117/1.jbo.22.9.091515] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 04/28/2017] [Indexed: 06/07/2023]
Abstract
Pores are vital for functioning of avascular tissues. Laser-induced pores play an important role in the process of cartilage regeneration. The aim of any treatment for osteoarthritis is to repair hyaline-type cartilage. The aims of this study are to answer two questions: (1) How do laser-assisted pores affect the cartilaginous cells to synthesize hyaline cartilage (HC)? and (2) How can the size distribution of pores arising in the course of laser radiation be controlled? We have shown that in cartilage, the pores arise predominately near chondrocytes, which promote nutrition of cells and signal molecular transfer that activates regeneration of cartilage. In vivo laser treatment of damaged cartilage of miniature pig joints provides cellular transformation and formation of HC. We propose a simple model of pore formation in biopolymers that paves the way for going beyond the trial-and-error approach when choosing an optimal laser treatment regime. Our findings support the approach toward laser healing of osteoarthritis.
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Affiliation(s)
- Emil Sobol
- Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, RussiabFederal Scientific Research Centre "Crystallography and Photonics" of the Russian Academy of Sciences, Institute of Photonic Technologies, Moscow, Russia
| | - Olga Baum
- Federal Scientific Research Centre "Crystallography and Photonics" of the Russian Academy of Sciences, Institute of Photonic Technologies, Moscow, Russia
| | - Anatoly Shekhter
- Sechenov First Medical University of Moscow, Institute of Regenerative Medicine, Moscow, Russia
| | - Sebastian Wachsmann-Hogiu
- University of California, Center for Biophotonics, Department of Pathology and Laboratory Medicine, Sacramento, California, United StateseMcGill University, Department of Bioengineering, Montreal, Canada
| | - Alexander Shnirelman
- Concordia University, Department of Mathematics and Statistics, Montreal, Canada
| | - Yulia Alexandrovskaya
- Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, RussiabFederal Scientific Research Centre "Crystallography and Photonics" of the Russian Academy of Sciences, Institute of Photonic Technologies, Moscow, Russia
| | - Ivan Sadovskyy
- Argonne National Laboratory, Materials Science Division, Argonne, Illinois, United States
| | - Valerii Vinokur
- Argonne National Laboratory, Materials Science Division, Argonne, Illinois, United States
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Hypoxia regulates RhoA and Wnt/β-catenin signaling in a context-dependent way to control re-differentiation of chondrocytes. Sci Rep 2017; 7:9032. [PMID: 28831110 PMCID: PMC5567364 DOI: 10.1038/s41598-017-09505-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 07/27/2017] [Indexed: 01/16/2023] Open
Abstract
Cartilage tissue is avascular and hypoxic which regulates chondrocyte phenotype via stabilization of HIFs. Here, we investigated the role of hypoxia and HIFs in regulation of Rho and canonical Wnt signaling in chondrocytes. Our data demonstrates that hypoxia controls the expression of RhoA in chondrocytes in a context-dependent manner on the culturing conditions. Within a 3D microenvironment, hypoxia suppresses RhoA on which hypoxia-driven expression of chondrogenic markers depends. Conversely, hypoxia leads to upregulation of RhoA in chondrocytes on 2D with a failure in re-expression of chondrogenic markers. Similarly to RhoA, hypoxic regulation of Wnt/β-catenin signaling depends on the microenvironment. Hypoxia downregulates β-catenin within 3D hydrogels whereas it causes a potent increase on 2D. Hypoxia-induced suppression of canonical Wnt signaling in 3D contributes to the promotion of chondrogenic phenotype as induction of Wnt signaling abrogates the hypoxic re-differentiation of chondrocytes. Inhibiting Wnt/β-catenin signaling via stabilization of Axin2 leads to a synergistic enhancement of hypoxia-induced expression of chondrogenic markers. The effects of hypoxia on Rho and Wnt/β-catenin signaling are HIF-dependent as stabilizing HIFs under normoxia revealed similar effects on chondrocytes. The study reveals important insights on hypoxic signaling of chondrocytes and how hypoxia regulates cellular mechanisms depending on the cellular microenvironment.
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28
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Bakker B, Eijkel GB, Heeren RMA, Karperien M, Post JN, Cillero-Pastor B. Oxygen-Dependent Lipid Profiles of Three-Dimensional Cultured Human Chondrocytes Revealed by MALDI-MSI. Anal Chem 2017; 89:9438-9444. [PMID: 28727417 PMCID: PMC5588094 DOI: 10.1021/acs.analchem.7b02265] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
![]()
Articular
cartilage is exposed to a gradient of oxygen levels ranging
from 5% at the surface to 1% in the deepest layers. While most cartilage
research is performed in supraphysiological oxygen levels (19–21%),
culturing chondrocytes under hypoxic oxygen levels (≤8%) promotes
the chondrogenic phenotype. Exposure of cells to various oxygen levels
alters their lipid metabolism, but detailed studies examining how
hypoxia affects lipid metabolism in chondrocytes are lacking. To better
understand the chondrocyte’s behavior in response to oxygen,
we cultured 3D pellets of human primary chondrocytes in normoxia (20%
oxygen) and hypoxia (2.5% oxygen) and employed matrix-assisted laser
desorption ionization mass spectrometry imaging (MALDI-MSI) in order
to characterize the lipid profiles and their spatial distribution.
In this work we show that chondrocytes cultured in hypoxia and normoxia
can be differentiated by their lipid profiles. Among other species,
phosphatidylglycerol species were increased in normoxic pellets, whereas
phosphatidylinositol species were the most prominent lipids in hypoxic
pellets. Moreover, spatial mapping revealed that phospahtidylglyycerol
species were less prominent in the center of pellets where the oxygen
level is lower. Additional analysis revealed a higher abundance of
the mitochondrial-specific lipids, cardiolipins, in normoxic conditions.
In conclusion MALDI-MSI described specific lipid profiles that could
be used as sensors of oxygen level changes and may especially be relevant
for retaining the chondrogenic phenotype, which has important implications
for the treatment of bone and cartilage diseases.
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Affiliation(s)
- Brenda Bakker
- Developmental BioEngineering, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, University of Twente , 7522 NB Enschede, The Netherlands
| | - Gert B Eijkel
- The Maastricht Multimodal Molecular Imaging Institute (M4I), Division of Imaging Mass Spectrometry, Maastricht University , 6229 ER Maastricht, The Netherlands
| | - Ron M A Heeren
- The Maastricht Multimodal Molecular Imaging Institute (M4I), Division of Imaging Mass Spectrometry, Maastricht University , 6229 ER Maastricht, The Netherlands
| | - Marcel Karperien
- Developmental BioEngineering, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, University of Twente , 7522 NB Enschede, The Netherlands
| | - Janine N Post
- Developmental BioEngineering, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, University of Twente , 7522 NB Enschede, The Netherlands
| | - Berta Cillero-Pastor
- The Maastricht Multimodal Molecular Imaging Institute (M4I), Division of Imaging Mass Spectrometry, Maastricht University , 6229 ER Maastricht, The Netherlands
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29
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Koh S, Purser M, Wysk R, Piedrahita JA. Improved Chondrogenic Potential and Proteomic Phenotype of Porcine Chondrocytes Grown in Optimized Culture Conditions. Cell Reprogram 2017; 19:232-244. [PMID: 28749737 DOI: 10.1089/cell.2017.0005] [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: 01/06/2023] Open
Abstract
For successful cartilage tissue engineering, the ability to generate a high number of chondrocytes in vitro while avoiding terminal differentiation or de-differentiation is critical. The ability to accomplish this by using the abundant and easily sampled costal cartilage could provide a practical alternative to the use of articular cartilage and mesenchymal stem cells. Chondrocytes isolated from pig costal cartilage were expanded in either serum-free medium with FGF2 (SFM) or fetal bovine serum-containing medium (SCM), under either high (21%) or low (5%) oxygen conditions. Overall, chondrocytes cultured in SFM and low oxygen (Low-SFM) demonstrated the highest cell growth rate (p < 0.05). The effect of passage number on the differentiation status of the chondrocytes was analyzed by alkaline phosphatase (AP) staining and real-time PCR for known chondrocyte quality markers. AP staining indicated that chondrocytes grown in SCM had a higher proportion of terminally differentiated (hypertrophic) chondrocytes (p < 0.05). At the mRNA level, expression ratios of ACAN/VCAN and COL2/COL1 were significantly higher (p < 0.05) in cells expanded in Low-SFM, indicating reduced de-differentiation. In vitro re-differentiation capacity was assessed after a 6-week induction, and chondrocytes grown in Low-SFM showed similar expression ratios of COL2/COL1 and ACAN/VCAN to native cartilage. Proteomic analysis of in vitro produced cartilage indicated that the Low-SFM condition most closely matched the proteomic profile of native costal and articular cartilage. In conclusion, Low-SFM culture conditions resulted in improved cell growth rates, reduced levels of de-differentiation during expansion, greater ability to re-differentiate into cartilage on induction, and an improved proteomic profile that resembles that of in vivo cartilage.
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Affiliation(s)
- Sehwon Koh
- 1 Genomics Program, North Carolina State University , Raleigh, North Carolina.,2 Comparative Medicine Institute, North Carolina State University , Raleigh, North Carolina.,3 Department of Cell Biology, Duke University , Durham, North Carolina
| | - Molly Purser
- 4 Department of Industrial and Systems Engineering, North Carolina state University , Raleigh, North Carolina.,5 RTI Health Solutions, Research Triangle International , Raleigh, North Carolina
| | - Richard Wysk
- 2 Comparative Medicine Institute, North Carolina State University , Raleigh, North Carolina.,4 Department of Industrial and Systems Engineering, North Carolina state University , Raleigh, North Carolina
| | - Jorge A Piedrahita
- 1 Genomics Program, North Carolina State University , Raleigh, North Carolina.,2 Comparative Medicine Institute, North Carolina State University , Raleigh, North Carolina.,6 Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University , Raleigh, North Carolina
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30
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Carballo CB, Nakagawa Y, Sekiya I, Rodeo SA. Basic Science of Articular Cartilage. Clin Sports Med 2017; 36:413-425. [DOI: 10.1016/j.csm.2017.02.001] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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31
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Toh WS, Brittberg M, Farr J, Foldager CB, Gomoll AH, Hui JHP, Richardson JB, Roberts S, Spector M. Cellular senescence in aging and osteoarthritis. Acta Orthop 2016; 87:6-14. [PMID: 27658487 PMCID: PMC5389431 DOI: 10.1080/17453674.2016.1235087] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
- It is well accepted that age is an important contributing factor to poor cartilage repair following injury, and to the development of osteoarthritis. Cellular senescence, the loss of the ability of cells to divide, has been noted as the major factor contributing to age-related changes in cartilage homeostasis, function, and response to injury. The underlying mechanisms of cellular senescence, while not fully understood, have been associated with telomere erosion, DNA damage, oxidative stress, and inflammation. In this review, we discuss the causes and consequences of cellular senescence, and the associated biological challenges in cartilage repair. In addition, we present novel strategies for modulation of cellular senescence that may help to improve cartilage regeneration in an aging population.
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Affiliation(s)
- Wei Seong Toh
- Faculty of Dentistry, National University of Singapore,Tissue Engineering Program, Life Sciences Institute, National University of Singapore, Singapore,Correspondence:
| | - Mats Brittberg
- Cartilage Research Unit, University of Gothenburg, Gothenburg,Department of Orthopaedics, Kungsbacka Hospital, Kungsbacka, Sweden
| | - Jack Farr
- Indiana University School of Medicine, OrthoIndy Cartilage Restoration Center, Indianapolis, IN, USA
| | | | - Andreas H Gomoll
- Cartilage Repair Center, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - James Hoi Po Hui
- Tissue Engineering Program, Life Sciences Institute, National University of Singapore, Singapore,Cartilage Repair Program, Therapeutic Tissue Engineering Laboratory, Department of Orthopaedic Surgery, National University Health System, National University of Singapore, Singapore
| | - James B Richardson
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire,Institute for Science andTechnology in Medicine, Keele University, Keele, Staffordshire, UK
| | - Sally Roberts
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire,Institute for Science andTechnology in Medicine, Keele University, Keele, Staffordshire, UK
| | - Myron Spector
- Department of Orthopaedic Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA,Tissue Engineering Laboratories, VA Boston Healthcare System, Boston, MA, USA
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32
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Bandeiras C, Completo A. A mathematical model of tissue-engineered cartilage development under cyclic compressive loading. Biomech Model Mechanobiol 2016; 16:651-666. [PMID: 27817048 DOI: 10.1007/s10237-016-0843-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 10/11/2016] [Indexed: 12/23/2022]
Abstract
In this work a coupled model of solute transport and uptake, cell proliferation, extracellular matrix synthesis and remodeling of mechanical properties accounting for the impact of mechanical loading is presented as an advancement of a previously validated coupled model for free-swelling tissue-engineered cartilage cultures. Tissue-engineering constructs were modeled as biphasic with a linear elastic solid, and relevant intrinsic mechanical stimuli in the constructs were determined by numerical simulation for use as inputs of the coupled model. The mechanical dependent formulations were derived from a calibration and parametrization dataset and validated by comparison of normalized ratios of cell counts, total glycosaminoglycans and collagen after 24-h continuous cyclic unconfined compression from another dataset. The model successfully fit the calibration dataset and predicted the results from the validation dataset with good agreement, with average relative errors up to 3.1 and 4.3 %, respectively. Temporal and spatial patterns determined for other model outputs were consistent with reported studies. The results suggest that the model describes the interaction between the simultaneous factors involved in in vitro tissue-engineered cartilage culture under dynamic loading. This approach could also be attractive for optimization of culture protocols, namely through the application to longer culture times and other types of mechanical stimuli.
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Affiliation(s)
- Cátia Bandeiras
- Department of Mechanical Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
| | - António Completo
- Department of Mechanical Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
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33
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Kean TJ, Mera H, Whitney GA, MacKay DL, Awadallah A, Fernandes RJ, Dennis JE. Disparate response of articular- and auricular-derived chondrocytes to oxygen tension. Connect Tissue Res 2016; 57:319-33. [PMID: 27128439 PMCID: PMC4984267 DOI: 10.1080/03008207.2016.1182996] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE/AIM To determine the effect of reduced (5%) oxygen tension on chondrogenesis of auricular-derived chondrocytes. Currently, many cell and tissue culture experiments are performed at 20% oxygen with 5% carbon dioxide. Few cells in the body are subjected to this supra-physiological oxygen tension. Chondrocytes and their mesenchymal progenitors are widely reported to have greater chondrogenic expression when cultured at low, more physiological, oxygen tension (1-7%). Although generally accepted, there is still some controversy, and different culture methods, species, and outcome metrics cloud the field. These results are, however, articular chondrocyte biased and have not been reported for auricular-derived chondrocytes. MATERIALS AND METHODS Auricular and articular chondrocytes were isolated from skeletally mature New Zealand White rabbits, expanded in culture and differentiated in high density cultures with serum-free chondrogenic media. Cartilage tissue derived from aggregate cultures or from the tissue engineered sheets were assessed for biomechanical, glycosaminoglycan, collagen, collagen cross-links, and lysyl oxidase activity and expression. RESULTS Our studies show increased proliferation rates for both auricular and articular chondrocytes at low (5%) O2 versus standard (20%) O2. In our scaffold-free chondrogenic cultures, low O2 was found to increase articular chondrocyte accumulation of glycosaminoglycan, but not cross-linked type II collagen, or total collagen. Conversely, auricular chondrocytes accumulated less glycosaminoglycan, cross-linked type II collagen and total collagen under low oxygen tension. CONCLUSIONS This study highlights the dramatic difference in response to low O2 of chondrocytes isolated from different anatomical sites. Low O2 is beneficial for articular-derived chondrogenesis but detrimental for auricular-derived chondrogenesis.
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Affiliation(s)
- Thomas J. Kean
- Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, WA, USA,Department of Orthopedics, Case Western Reserve University, Cleveland, OH, USA,Department of Orthopedic Surgery, Baylor College of Medicine, Houston, TX, USA
| | - Hisashi Mera
- Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, WA, USA,Department of Orthopedics, Case Western Reserve University, Cleveland, OH, USA,Department of Health and Sports Sciences, Mukogawa Women’s University, Hyogo, Japan
| | - G. Adam Whitney
- Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, WA, USA,Department of Orthopedics, Case Western Reserve University, Cleveland, OH, USA
| | - Danielle L. MacKay
- Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, WA, USA,Department of Orthopedic Surgery, Baylor College of Medicine, Houston, TX, USA
| | - Amad Awadallah
- Department of Orthopedics, Case Western Reserve University, Cleveland, OH, USA
| | - Russell J. Fernandes
- Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, WA, USA
| | - James E. Dennis
- Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, WA, USA,Department of Orthopedics, Case Western Reserve University, Cleveland, OH, USA,Department of Orthopedic Surgery, Baylor College of Medicine, Houston, TX, USA
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34
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Lafont JE, Poujade FA, Pasdeloup M, Neyret P, Mallein-Gerin F. Hypoxia potentiates the BMP-2 driven COL2A1 stimulation in human articular chondrocytes via p38 MAPK. Osteoarthritis Cartilage 2016; 24:856-67. [PMID: 26708156 DOI: 10.1016/j.joca.2015.11.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 10/02/2015] [Accepted: 11/24/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Since the biological effect of cartilage mediators is generally studied in a non-physiologic environment of 21% O2, we investigated the effects of a chronic hypoxia on the capability of articular chondrocytes to respond to one anabolic stimulation. DESIGN Human Articular Chondrocytes (HACs) were cultured under hypoxia and stimulated with the chondrogenic growth factor BMP-2. The phenotype of the chondrocytes was studied by RT-PCR, and the cartilage-specific type II collagen production and deposition were also examined by western immunoblot and immunofluorescence. The Bone Morphogenetic protein (BMP) signalling pathway was also analysed. RESULTS BMP-2 is much more efficient to stimulate the expression of the cartilage-specific gene COL2A1 by HACs when cultured under hypoxia (1%O2) compared to normoxia (21%O2). Analysis of the BMP-activated signalling shows that the Smad pathway is inhibited under hypoxia, whereas p38 MAPK is activated, and is involved in a synergy between hypoxia and BMP signalling, thus contributing to the enhanced anabolic response. CONCLUSIONS Our study shows that hypoxia interplays with a chondrogenic factor and enhances the overall anabolic activity of the HACs. Alternatively to Hypoxia-Inducible Factor (HIF) signalling, and through a cross-talk with the BMP signalling which involves the p38 pathway, hypoxic stimulation markedly increases the capability of chondrocytes to produce the cartilage-specific type II collagen. Therefore our study provides new evidences of the multilayered effects of hypoxia in the anabolic functions of chondrocytes. This understanding may help promoting the anabolic function of articular chondrocytes, and thus improving their manipulation for cell therapy.
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Affiliation(s)
- J E Lafont
- Institute for Biology and Chemistry of Proteins, CNRS, UMR 5305 Laboratory of Tissue Biology and Therapeutic Engineering, Université Claude Bernard-Lyon 1 and University of Lyon, France.
| | - F-A Poujade
- Institute for Biology and Chemistry of Proteins, CNRS, UMR 5305 Laboratory of Tissue Biology and Therapeutic Engineering, Université Claude Bernard-Lyon 1 and University of Lyon, France
| | - M Pasdeloup
- Institute for Biology and Chemistry of Proteins, CNRS, UMR 5305 Laboratory of Tissue Biology and Therapeutic Engineering, Université Claude Bernard-Lyon 1 and University of Lyon, France
| | - P Neyret
- Orthopaedic Surgery Department, Hôpital de la Croix-Rousse, 103 grande rue de la Croix-Rousse, 69317 Lyon Cedex 04, France
| | - F Mallein-Gerin
- Institute for Biology and Chemistry of Proteins, CNRS, UMR 5305 Laboratory of Tissue Biology and Therapeutic Engineering, Université Claude Bernard-Lyon 1 and University of Lyon, France
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35
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Nazempour A, Van Wie BJ. Chondrocytes, Mesenchymal Stem Cells, and Their Combination in Articular Cartilage Regenerative Medicine. Ann Biomed Eng 2016; 44:1325-54. [PMID: 26987846 DOI: 10.1007/s10439-016-1575-9] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 02/17/2016] [Indexed: 01/05/2023]
Abstract
Articular cartilage (AC) is a highly organized connective tissue lining, covering the ends of bones within articulating joints. Its highly ordered structure is essential for stable motion and provides a frictionless surface easing load transfer. AC is vulnerable to lesions and, because it is aneural and avascular, it has limited self-repair potential which often leads to osteoarthritis. To date, no fully successful treatment for osteoarthritis has been reported. Thus, the development of innovative therapeutic approaches is desperately needed. Autologous chondrocyte implantation, the only cell-based surgical intervention approved in the United States for treating cartilage defects, has limitations because of de-differentiation of articular chondrocytes (AChs) upon in vitro expansion. De-differentiation can be abated if initial populations of AChs are co-cultured with mesenchymal stem cells (MSCs), which not only undergo chondrogenesis themselves but also support chondrocyte vitality. In this review we summarize studies utilizing AChs, non-AChs, and MSCs and compare associated outcomes. Moreover, a comprehensive set of recent human studies using chondrocytes to direct MSC differentiation, MSCs to support chondrocyte re-differentiation and proliferation in co-culture environments, and exploratory animal intra- and inter-species studies are systematically reviewed and discussed in an innovative manner allowing side-by-side comparisons of protocols and outcomes. Finally, a comprehensive set of recommendations are made for future studies.
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Affiliation(s)
- A Nazempour
- Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99164-6515, USA
| | - B J Van Wie
- Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99164-6515, USA.
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Kwon H, Paschos NK, Hu JC, Athanasiou K. Articular cartilage tissue engineering: the role of signaling molecules. Cell Mol Life Sci 2016; 73:1173-94. [PMID: 26811234 PMCID: PMC5435375 DOI: 10.1007/s00018-015-2115-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 11/23/2015] [Accepted: 12/10/2015] [Indexed: 02/08/2023]
Abstract
Effective early disease modifying options for osteoarthritis remain lacking. Tissue engineering approach to generate cartilage in vitro has emerged as a promising option for articular cartilage repair and regeneration. Signaling molecules and matrix modifying agents, derived from knowledge of cartilage development and homeostasis, have been used as biochemical stimuli toward cartilage tissue engineering and have led to improvements in the functionality of engineered cartilage. Clinical translation of neocartilage faces challenges, such as phenotypic instability of the engineered cartilage, poor integration, inflammation, and catabolic factors in the arthritic environment; these can all contribute to failure of implanted neocartilage. A comprehensive understanding of signaling molecules involved in osteoarthritis pathogenesis and their actions on engineered cartilage will be crucial. Thus, while it is important to continue deriving inspiration from cartilage development and homeostasis, it has become increasingly necessary to incorporate knowledge from osteoarthritis pathogenesis into cartilage tissue engineering.
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Affiliation(s)
- Heenam Kwon
- Department of Biomedical Engineering, University of California Davis, One Shields Avenue, Davis, CA, 95616, USA
| | - Nikolaos K Paschos
- Department of Biomedical Engineering, University of California Davis, One Shields Avenue, Davis, CA, 95616, USA
| | - Jerry C Hu
- Department of Biomedical Engineering, University of California Davis, One Shields Avenue, Davis, CA, 95616, USA
| | - Kyriacos Athanasiou
- Department of Biomedical Engineering, University of California Davis, One Shields Avenue, Davis, CA, 95616, USA.
- Department of Orthopaedic Surgery, University of California Davis Medical Center, Sacramento, CA, USA.
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Aleshcheva G, Bauer J, Hemmersbach R, Slumstrup L, Wehland M, Infanger M, Grimm D. Scaffold-free Tissue Formation Under Real and Simulated Microgravity Conditions. Basic Clin Pharmacol Toxicol 2016; 119 Suppl 3:26-33. [PMID: 26826674 DOI: 10.1111/bcpt.12561] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 01/20/2016] [Indexed: 12/19/2022]
Abstract
Scaffold-free tissue formation in microgravity is a new method in regenerative medicine and an important topic in Space Medicine. In this MiniReview, we focus on recent findings in the field of tissue engineering that were observed by exposing cells to real microgravity in space or to devices simulating to at least some extent microgravity conditions on Earth (ground-based facilities). Under both conditions - real and simulated microgravity - a part of the cultured cells of various populations detaches from the bottom of a culture flask. The cells form three-dimensional (3D) aggregates resembling the organs from which the cells have been derived. As spaceflights are rare and extremely expensive, cell culture under simulated microgravity allows more comprehensive and frequent studies on the scaffold-free 3D tissue formation in some aspects, as a number of publications have proven during the last two decades. In this MiniReview, we summarize data from our own studies and work from various researchers about tissue engineering of multi-cellular spheroids formed by cancer cells, tube formation by endothelial cells and cartilage formation by exposing the cells to ground-based facilities such as the 3D Random Positioning Machine (RPM), the 2D Fast-Rotating Clinostat (FRC) or the Rotating Wall Vessel (RWV). Subsequently, we investigated self-organization of 3D aggregates without scaffolds pursuing to enhance the frequency of 3D formation and to enlarge the size of the organ-like aggregates. The density of the monolayer exposed to real or simulated microgravity as well as the composition of the culture media revealed an impact on the results. Genomic and proteomic alterations were induced by simulated microgravity. Under microgravity conditions, adherent cells expressed other genes than cells grown in spheroids. In this MiniReview, the recent improvements in scaffold-free tissue formation are summarized and relationships between phenotypic and molecular appearance are highlighted.
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Affiliation(s)
| | - Johann Bauer
- Max-Planck Institute for Biochemistry, Martinsried, Germany
| | - Ruth Hemmersbach
- Gravitational Biology, DLR Institute of Aerospace Medicine, Cologne, Germany
| | - Lasse Slumstrup
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Markus Wehland
- Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | | | - Daniela Grimm
- Otto-von-Guericke-University Magdeburg, Magdeburg, Germany. .,Department of Biomedicine, Aarhus University, Aarhus, Denmark.
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Application of cell and biomaterial-based tissue engineering methods in the treatment of cartilage, menisci and ligament injuries. INTERNATIONAL ORTHOPAEDICS 2016; 40:615-24. [PMID: 26762517 DOI: 10.1007/s00264-015-3099-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 12/23/2015] [Indexed: 02/07/2023]
Abstract
Over 20 years ago it was realized that the traditional methods of the treatment of injuries to joint components: cartilage, menisci and ligaments, did not give satisfactory results and so there is a need of employing novel, more effective therapeutic techniques. Recent advances in molecular biology, biotechnology and polymer science have led to both the experimental and clinical application of various cell types, adapting their culture conditions in order to ensure a directed differentiation of the cells into a desired cell type, and employing non-toxic and non-immunogenic biomaterial in the treatment of knee joint injuries. In the present review the current state of knowledge regarding novel cell sources, in vitro conditions of cell culture and major important biomaterials, both natural and synthetic, used in cartilage, meniscus and ligament repair by tissue engineering techniques are described, and the assets and drawbacks of their clinical application are critically evaluated.
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Foldager CB, Toh WS, Christensen BB, Lind M, Gomoll AH, Spector M. Collagen Type IV and Laminin Expressions during Cartilage Repair and in Late Clinically Failed Repair Tissues from Human Subjects. Cartilage 2016; 7:52-61. [PMID: 26958317 PMCID: PMC4749752 DOI: 10.1177/1947603515604022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To identify the collagen type IV (Col4) isoform in articular cartilage and to evaluate the expressions of Col4 and laminin in the pericellular matrix (PCM) in damaged cartilage and during cartilage repair. DESIGN The Col4 isoform was determined in chondrocytes isolated from 6 patients cultured up to 6 days and in 21% O2 or 1% O2, and the gene expression of Col4 α-chains was investigated. The distribution of Col4 and laminin in traumatically damaged cartilage (n = 7) and clinically failed cartilage repair (microfracture, TruFit, autologous chondrocyte implantation; n = 11) were investigated using immunohistochemistry. Normal human cartilage was used as control (n = 8). The distribution during clinical cartilage repair procedures was investigated in a minipig model with 6-month follow-up (untreated chondral, untreated osteochondral, microfracture, autologous chondrocyte implantation; n = 10). RESULTS The Col4 isoform in articular cartilage was characterized as α1α1α2, which is an isoform containing antiangiogenic domains in the NC1-terminals (arresten and canstatin). In normal cartilage, laminin and Col4 was exclusively found in the PCM. High amounts (>50%) of Col4 in the PCM significantly decreased in damaged cartilage (P = 0.004) and clinically failed repair tissue (P < 0.001). Laminin was only found with high expression (>50%) in 4/8 of the normal samples, which was not statistically significantly different from damaged cartilage (P = 0.15) or failed cartilage repair (P = 0.054). CONCLUSIONS Col4 in cartilage contain antiangiogenic domains and may play a role in the hypoxic environment in articular cartilage. Col4 and laminin was not found in the PCM of damaged and clinically failed repair.
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Affiliation(s)
- Casper Bindzus Foldager
- Department of Orthopedics, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Tissue Engineering Labs, VA Boston Healthcare System, Boston, MA, USA
- Orthopaedic Research Laboratory, Aarhus University Hospital, Aarhus, Denmark
| | - Wei Seong Toh
- Department of Orthopedics, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Tissue Engineering Labs, VA Boston Healthcare System, Boston, MA, USA
- Discipline of Oral Sciences, Faculty of Dentistry, National University of Singapore, Singapore
| | | | - Martin Lind
- Sports Trauma Clinic, Department of Orthopaedics, Aarhus University Hospital, Aarhus, Denmark
| | - Andreas H. Gomoll
- Cartilage Repair Center, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Myron Spector
- Department of Orthopedics, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Tissue Engineering Labs, VA Boston Healthcare System, Boston, MA, USA
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Neuroleukin/Autocrine Motility Factor Receptor Pathway Promotes Proliferation of Articular Chondrocytes through Activation of AKT and Smad2/3. Sci Rep 2015; 5:15101. [PMID: 26459914 PMCID: PMC4602231 DOI: 10.1038/srep15101] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 09/15/2015] [Indexed: 12/12/2022] Open
Abstract
Cartilage defect is an intractable clinical problem. Therapeutic strategies for cartilage repair are far from optimal due to poor proliferation capacity of chondrocytes. Autologous chondrocyte implantation is a cell based therapy that uses in vitro amplified healthy chondrocytes from the patient. However, chondrocyte dedifferentiation during in vitro culture limits its application. Neuroleukin (NLK) is a multifunctional protein that stimulates cell growth and migration, together with its receptor autocrine motility factor receptor (AMFR, also called gp78). We investigated expression of NLK and AMFR/gp78 during cartilage development in vivo and in cultured articular chondrocytes in vitro, and found the pair associates with chondrocyte proliferation and differentiation. While applied to isolated articular chondrocytes, NLK promotes cell proliferation and secretion of type II collagen, a marker of proliferating chondrocytes. Further work demonstrates that NLK up regulates pAKT and pSmad2/3, but down regulates pSmad1/5. In animals, NLK treatment also promotes chondrocyte proliferation while inhibits terminal differentiation, leading to expanded proliferating zone but decreased prehypertrophic and hypertrophic zones in the growth plate region. NLK is therefore a candidate factor that can be applied in the treatment of cartilage defects.
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Kutikov AB, Song J. Biodegradable PEG-Based Amphiphilic Block Copolymers for Tissue Engineering Applications. ACS Biomater Sci Eng 2015; 1:463-480. [PMID: 27175443 PMCID: PMC4860614 DOI: 10.1021/acsbiomaterials.5b00122] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Biodegradable tissue engineering scaffolds have great potential for delivering cells/therapeutics and supporting tissue formation. Polyesters, the most extensively investigated biodegradable synthetic polymers, are not ideally suited for diverse tissue engineering applications due to limitations associated with their hydrophobicity. This review discusses the design and applications of amphiphilic block copolymer scaffolds integrating hydrophilic poly(ethylene glycol) (PEG) blocks with hydrophobic polyesters. Specifically, we highlight how the addition of PEG results in striking changes to the physical properties (swelling, degradation, mechanical, handling) and biological performance (protein & cell adhesion) of the degradable synthetic scaffolds in vitro. We then perform a critical review of how these in vitro characteristics translate to the performance of biodegradable amphiphilic block copolymer-based scaffolds in the repair of a variety of tissues in vivo including bone, cartilage, skin, and spinal cord/nerve. We conclude the review with recommendations for future optimizations in amphiphilic block copolymer design and the need for better-controlled in vivo studies to reveal the true benefits of the amphiphilic synthetic tissue scaffolds.
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Affiliation(s)
- Artem B. Kutikov
- Department of Orthopedics and Physical Rehabilitation. University of Massachusetts Medical School. 55 Lake Ave North, Worcester, MA 01655, USA
| | - Jie Song
- Department of Orthopedics and Physical Rehabilitation. University of Massachusetts Medical School. 55 Lake Ave North, Worcester, MA 01655, USA
- Department of Cell and Developmental Biology. University of Massachusetts Medical School. 55 Lake Ave North, Worcester, MA 01655, USA
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Synoviocyte Derived-Extracellular Matrix Enhances Human Articular Chondrocyte Proliferation and Maintains Re-Differentiation Capacity at Both Low and Atmospheric Oxygen Tensions. PLoS One 2015; 10:e0129961. [PMID: 26075742 PMCID: PMC4468209 DOI: 10.1371/journal.pone.0129961] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 05/14/2015] [Indexed: 11/22/2022] Open
Abstract
Background Current tissue engineering methods are insufficient for total joint resurfacing, and chondrocytes undergo de-differentiation when expanded on tissue culture plastic. De-differentiated chondrocytes show poor re-differentiation in culture, giving reduced glycosaminoglycan (GAG) and collagen matrix accumulation. To address this, porcine synoviocyte-derived extracellular matrix and low (5%) oxygen tension were assessed for their ability to enhance human articular chondrocyte expansion and maintain re-differentiation potential. Methods Porcine synoviocyte matrices were devitalized using 3 non-detergent methods. These devitalized synoviocyte matrices were compared against tissue culture plastic for their ability to support human chondrocyte expansion. Expansion was further compared at both low (5%), and atmospheric (20%) oxygen tension on all surfaces. Expanded cells then underwent chondrogenic re-differentiation in aggregate culture at both low and atmospheric oxygen tension. Aggregates were assessed for their GAG and collagen content both biochemically and histologically. Results Human chondrocytes expanded twice as fast on devitalized synoviocyte matrix vs. tissue culture plastic, and cells retained their re-differentiation capacity for twice the number of population doublings. There was no significant difference in growth rate between low and atmospheric oxygen tension. There was significantly less collagen type I, collagen type II, aggrecan and more MMP13 expression in cells expanded on synoviocyte matrix vs. tissue culture plastic. There were also significant effects due to oxygen tension on gene expression, wherein there was greater collagen type I, collagen type II, SOX9 and less MMP13 expression on tissue culture plastic compared to synoviocyte matrix. There was a significant increase in GAG, but not collagen, accumulation in chondrocyte aggregates re-differentiated at low oxygen tension over that achieved in atmospheric oxygen conditions. Conclusions Synoviocyte-derived matrix supports enhanced expansion of human chondrocytes such that the chondrocytes are maintained in a state from which they can re-differentiate into a cartilage phenotype after significantly more population doublings. Also, low oxygen tension supports GAG, but not collagen, accumulation. These findings are a step towards the production of a more functional, tissue engineered cartilage.
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Ito A, Nagai M, Tajino J, Yamaguchi S, Iijima H, Zhang X, Aoyama T, Kuroki H. Culture temperature affects human chondrocyte messenger RNA expression in monolayer and pellet culture systems. PLoS One 2015; 10:e0128082. [PMID: 26010859 PMCID: PMC4444092 DOI: 10.1371/journal.pone.0128082] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 04/22/2015] [Indexed: 11/19/2022] Open
Abstract
Cell-based therapy has been explored for articular cartilage regeneration. Autologous chondrocyte implantation is a promising cell-based technique for repairing articular cartilage defects. However, there are several issues such as chondrocyte de-differentiation. While numerous studies have been designed to overcome some of these issues, only a few have focused on the thermal environment that can affect chondrocyte metabolism and phenotype. In this study, the effects of different culture temperatures on human chondrocyte metabolism- and phenotype-related gene expression were investigated in 2D and 3D environments. Human chondrocytes were cultured in a monolayer or in a pellet culture system at three different culture temperatures (32°C, 37°C, and 41°C) for 3 days. The results showed that the total RNA level, normalized to the threshold cycle value of internal reference genes, was higher at lower temperatures in both culture systems. Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and citrate synthase (CS), which are involved in glycolysis and the citric acid cycle, respectively, were expressed at similar levels at 32°C and 37°C in pellet cultures, but the levels were significantly lower at 41°C. Expression of the chondrogenic markers, collagen type IIA1 (COL2A1) and aggrecan (ACAN), was higher at 37°C than at 32°C and 41°C in both culture systems. However, this phenomenon did not coincide with SRY (sex-determining region Y)-box 9 (SOX9), which is a fundamental transcription factor for chondrogenesis, indicating that a SOX9-independent pathway might be involved in this phenomenon. In conclusion, the expression of chondrocyte metabolism-related genes at 32°C was maintained or enhanced compared to that at 37°C. However, chondrogenesis-related genes were further induced at 37°C in both culture systems. Therefore, manipulating the culture temperature may be an advantageous approach for regulating human chondrocyte metabolic activity and chondrogenesis.
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Affiliation(s)
- Akira Ito
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Japan Society for the Promotion of Science, Tokyo, Japan
| | - Momoko Nagai
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Junichi Tajino
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shoki Yamaguchi
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Japan Society for the Promotion of Science, Tokyo, Japan
| | - Hirotaka Iijima
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Xiangkai Zhang
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tomoki Aoyama
- Department of Development and Rehabilitation of Motor Function, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroshi Kuroki
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- * E-mail:
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Ollitrault D, Legendre F, Drougard C, Briand M, Benateau H, Goux D, Chajra H, Poulain L, Hartmann D, Vivien D, Shridhar V, Baldi A, Mallein-Gerin F, Boumediene K, Demoor M, Galera P. BMP-2, hypoxia, and COL1A1/HtrA1 siRNAs favor neo-cartilage hyaline matrix formation in chondrocytes. Tissue Eng Part C Methods 2015; 21:133-47. [PMID: 24957638 PMCID: PMC4313417 DOI: 10.1089/ten.tec.2013.0724] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 05/30/2014] [Indexed: 11/13/2022] Open
Abstract
Osteoarthritis (OA) is an irreversible pathology that causes a decrease in articular cartilage thickness, leading finally to the complete degradation of the affected joint. The low spontaneous repair capacity of cartilage prevents any restoration of the joint surface, making OA a major public health issue. Here, we developed an innovative combination of treatment conditions to improve the human chondrocyte phenotype before autologous chondrocyte implantation. First, we seeded human dedifferentiated chondrocytes into a collagen sponge as a scaffold, cultured them in hypoxia in the presence of a bone morphogenetic protein (BMP), BMP-2, and transfected them with small interfering RNAs targeting two markers overexpressed in OA dedifferentiated chondrocytes, that is, type I collagen and/or HtrA1 serine protease. This strategy significantly decreased mRNA and protein expression of type I collagen and HtrA1, and led to an improvement in the chondrocyte phenotype index of differentiation. The effectiveness of our in vitro culture process was also demonstrated in the nude mouse model in vivo after subcutaneous implantation. We, thus, provide here a new protocol able to favor human hyaline chondrocyte phenotype in primarily dedifferentiated cells, both in vitro and in vivo. Our study also offers an innovative strategy for chondrocyte redifferentiation and opens new opportunities for developing therapeutic targets.
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Affiliation(s)
- David Ollitrault
- 1 Microenvironnement Cellulaire et Pathologies Laboratory (MILPAT) EA 4652, Federative Research Structure (FRS) 146 ICORE, Faculty of Medicine, IBFA, University of Caen/Lower-Normandy (UCLN) , Caen, France
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Shi Y, Ma J, Zhang X, Li H, Jiang L, Qin J. Hypoxia combined with spheroid culture improves cartilage specific function in chondrocytes. Integr Biol (Camb) 2015; 7:289-97. [PMID: 25614382 DOI: 10.1039/c4ib00273c] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Controlling the chondrocyte phenotype and function in a physiologically relevant microenvironment remains a major challenge for cartilage repair in tissue engineering applications. This work presents a straightforward strategy to create a high throughput concave microwell array used for generating multicellular spheroids of chondrocytes and facilitating the maintenance of the articular chondrocyte phenotype and function by combining 3D spheroid culture with hypoxia. The polydimethylsiloxane (PDMS) concave microwells were simply produced from a concave SU-8 template fabricated using a soft-lithography approach and easily adopted for size-controlled spheroid culture. 3D spheroid culture was observed to facilitate the cartilage-specific phenotype and function maintenance as compared to 2D monolayer culture. Combining hypoxia with spheroid culture markedly increased the expressions of cartilage-specific collagen II and aggrecan at protein and mRNA levels. The hypoxia-inducible factor (HIF) signaling pathway was found to get involved in phenotype maintenance, metabolism and differentiation of chondrocytes by regulating HIF-1α and HIF-2α, respectively. The established approach provides a useful platform for a wide range of applications in the field of cartilage biology, stem cell research and high throughput 3D drug testing in cancer.
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Affiliation(s)
- Yang Shi
- Department of Biotechnology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
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Ito A, Aoyama T, Tajino J, Nagai M, Yamaguchi S, Iijima H, Zhang X, Akiyama H, Kuroki H. Evaluation of reference genes for human chondrocytes cultured in several different thermal environments. Int J Hyperthermia 2014; 30:210-6. [PMID: 24773042 DOI: 10.3109/02656736.2014.906048] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
PURPOSE The purpose of this study was to identify reference genes showing stable expression in chondrocytes cultured under several different thermal environments and in different culture systems. MATERIALS AND METHODS Human articular chondrocytes were cultured by monolayer or pellet culture system at 32 °C, 37 °C, and 41 °C for 3 days. Thereafter, the total RNA was extracted, and quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR) was performed. The qRT-PCR data was analysed using three different algorithms (geNorm, NormFinder, and BestKeeper) to identify reference genes exhibiting stable expression from among the seven candidate reference genes (B2M, ACTB, GAPDH, HSPCB, RPL13a, YWHAZ, and 18S). RESULTS The candidate reference genes, except for HSPCB and YWHAZ, showed systematic variations in expression. In the monolayer culture, RPL13a was the most stable gene identified using NormFinder and BestKeeper; on using geNorm, ACTB and GAPDH showed the highest expression stability. In the pellet culture, ACTB was the most stable gene identified using NormFinder and BestKeeper, whereas GAPDH and RPL13a were the most stable reference genes as determined using geNorm. In the combined group, B2M and GAPDH were the most stable genes identified using geNorm, whereas RPL13a and YWHAZ were the most stable as per NormFinder and BestKeeper, respectively. The best combination of two candidate reference genes among all the groups determined using NormFinder was RPL13a and YWHAZ. CONCLUSION The combination of RPL13a and YWHAZ might be suitable as reference genes for human chondrocytes cultured at 32 °C, 37 °C, and 41 °C in monolayer, pellet, or combined cultures.
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Affiliation(s)
- Akira Ito
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University , Kyoto
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Nicolini AP, Carvalho RT, Dragone B, Lenza M, Cohen M, Ferretti M. Updates in biological therapies for knee injuries: full thickness cartilage defect. Curr Rev Musculoskelet Med 2014; 7:256-62. [PMID: 25012907 PMCID: PMC4596164 DOI: 10.1007/s12178-014-9226-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Full thickness cartilage defect might occur at different ages, but a focal defect is a major concern in the knee of young athletes. It causes impairment and does not heal by itself. Several techniques were described to treat symptomatic full thickness cartilage defect. Recently, several advances were described on the known techniques of microfracture, osteochondral allograft, cell therapy, and others. This article brings an update of current literature on these well-described techniques for full thickness cartilage defect.
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Affiliation(s)
- Alexandre Pedro Nicolini
- />Division of Orthopaedic Surgery, Hospital Israelita Albert Einstein, Avenida Albert Einstein, 627/701 - 3 Andar/Bloco A1, Morumbi, 05651-901 São Paulo, SP Brazil
- />Departamento de Ortopedia e Traumatologia, Universidade Federal de São Paulo, São Paulo, SP Brazil
| | - Rogerio Teixeira Carvalho
- />Departamento de Ortopedia e Traumatologia, Universidade Federal de São Paulo, São Paulo, SP Brazil
| | - Bruno Dragone
- />Departamento de Ortopedia e Traumatologia, Universidade Federal de São Paulo, São Paulo, SP Brazil
| | - Mario Lenza
- />Division of Orthopaedic Surgery, Hospital Israelita Albert Einstein, Avenida Albert Einstein, 627/701 - 3 Andar/Bloco A1, Morumbi, 05651-901 São Paulo, SP Brazil
- />Departamento de Ortopedia e Traumatologia, Universidade Federal de São Paulo, São Paulo, SP Brazil
| | - Moises Cohen
- />Departamento de Ortopedia e Traumatologia, Universidade Federal de São Paulo, São Paulo, SP Brazil
| | - Mario Ferretti
- />Division of Orthopaedic Surgery, Hospital Israelita Albert Einstein, Avenida Albert Einstein, 627/701 - 3 Andar/Bloco A1, Morumbi, 05651-901 São Paulo, SP Brazil
- />Departamento de Ortopedia e Traumatologia, Universidade Federal de São Paulo, São Paulo, SP Brazil
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Hubka KM, Dahlin RL, Meretoja VV, Kasper FK, Mikos AG. Enhancing chondrogenic phenotype for cartilage tissue engineering: monoculture and coculture of articular chondrocytes and mesenchymal stem cells. TISSUE ENGINEERING PART B-REVIEWS 2014; 20:641-54. [PMID: 24834484 DOI: 10.1089/ten.teb.2014.0034] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Articular cartilage exhibits an inherently low rate of regeneration. Consequently, damage to articular cartilage often requires surgical intervention. However, existing treatments generally result in the formation of fibrocartilage tissue, which is inferior to native articular cartilage. As a result, cartilage engineering strategies seek to repair or replace damaged cartilage with an engineered tissue that restores full functionality to the impaired joint. These strategies often involve the use of chondrocytes, yet in vitro expansion and culture can lead to undesirable changes in chondrocyte phenotype. This review focuses on the use of articular chondrocytes and mesenchymal stem cells (MSCs) in either monoculture or coculture for the enhancement of chondrogenesis. Coculture strategies increasingly outperform their monoculture counterparts with regard to chondrogenesis and present unique opportunities to attain chondrocyte phenotype stability in vitro. Methods to prevent chondrocyte dedifferentiation and promote chondrocyte redifferentiation as well as to promote the chondrogenic differentiation of MSCs while preventing MSC hypertrophy are discussed.
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Affiliation(s)
- Kelsea M Hubka
- Department of Bioengineering, Rice University , Houston, Texas
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Dahlin RL, Meretoja VV, Ni M, Kasper FK, Mikos AG. Chondrogenic phenotype of articular chondrocytes in monoculture and co-culture with mesenchymal stem cells in flow perfusion. Tissue Eng Part A 2014; 20:2883-91. [PMID: 24745375 DOI: 10.1089/ten.tea.2014.0107] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
This work investigated the effect of flow perfusion bioreactor culture with and without transforming growth factor-β3 (TGF-β3) supplementation on the proliferation, extracellular matrix (ECM) production, and chondrogenic gene expression of chondrocytes both in monoculture and in co-culture with bone marrow-derived mesenchymal stem cells (MSCs). Both cell populations were cultured on electrospun poly(ɛ-caprolactone) scaffolds for 2 weeks in static or flow perfusion culture with and without TGF-β3. Overall, it was observed that without growth factors, flow perfusion culture resulted in increased cell proliferation and ECM with a more cartilage-like composition. While with TGF-β3 induction, flow perfusion constructs generally had lower chondrogenic gene expression than the corresponding static cultures, the growth factor still had an inductive effect on the cells with enhanced gene expression compared with the corresponding noninduced cultures. In addition, while flow perfusion cultures generally had reduced overall ECM content, the ECM distribution was more homogenous compared with the corresponding static cultures. These results are significant in that they indicate that while flow perfusion culture has some beneficial effects on the chondrogenic phenotype of articular chondrocytes, flow perfusion alone is not sufficient to maintain the chondrogenic phenotype of chondrocytes in either monoculture or co-culture, thus demonstrating the advantages of using exogenously added growth factors in flow perfusion culture. Furthermore, the results demonstrate the advantages of flow perfusion culture for the creation of large tissue engineered constructs and the potential of co-cultures of articular chondrocytes and MSCs to be used in flow perfusion culture.
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Zhou J, Chen Y, Cao C, Chen X, Gao W, Zhang L. Inactivation of glycogen synthase kinase-3β up-regulates β-catenin and promotes chondrogenesis. Cell Tissue Bank 2014; 16:135-42. [PMID: 24760579 DOI: 10.1007/s10561-014-9449-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 04/14/2014] [Indexed: 01/02/2023]
Abstract
This study aimed to investigate whether inhibition of glycogen synthase kinase-3β (GSK-3β) could promote chondrocytes proliferation. The expression pattern of GSK-3β was firstly determined by immunohistochemistry (IHC) in normal mouse. Tibias were then isolated and cultured for 6 days. The tibias were treated with dimethylsulfoxide (control) or GSK-3 inhibitor SB415286 (SB86). Length of tibias was measured until 6 days after treatment. These bones were either stained with alcian blue/alizarin red or analyzed by IHC. In addition, GSK-3β and β-catenin were analyzed by Western blot. Finally, cartilage-specific GSK-3β deletion mice (KO) were generated. Efficiency of GSK-3β deletion was determined through Western blot and IHC. After treated by inhibitor SB86, the overall length of growth plate was not changed. However, growth of tibia in SB86 group was increased by 31 %, the length of resting and proliferating was increased 13 % (P < 0.01), whereas the length of hypertrophic was decreased by 57 % (P < 0.01). Besides, the mineralized length was found to be significant longer than the control group (P < 0.05). In KO mice, growth plate and calvaria tissue both exhibit significant reduction of GSK-3β (P < 0.05) whereas the lengths of tibias in KO were almost same compared with control mice. Finally, an increase amount of β-catenin protein was observed in SB86 (P < 0.05). In addition, significantly increased β-catenin was also found in the growth plate of KO mice (P < 0.05). Inhibition of GSK-3 could promote longitudinal growth of bone through increasing bone formation. Besides, the inactivation of GSK-3β could lead to enhancing β-catenin, therefore promote chondrocytes proliferation.
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Affiliation(s)
- Junjie Zhou
- Orthopedic Surgery, PuTuo Hospital, Shanghai University of Traditional Chinese Medicine, No. 164, LanXi Road, Shanghai, 200062, China,
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