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Cheung HL, Wong YH, Li YY, Yang X, Ko LH, Tan Kabigting JE, Chan KC, Leung AYH, Chan BP. Microenvironment matters: In vitro 3D bone marrow niches differentially modulate survival, phenotype and drug responses of acute myeloid leukemia (AML) cells. Biomaterials 2024; 312:122719. [PMID: 39088912 DOI: 10.1016/j.biomaterials.2024.122719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 07/14/2024] [Accepted: 07/26/2024] [Indexed: 08/03/2024]
Abstract
Acute myeloid leukemia (AML) is a deadly form of leukemia with ineffective traditional treatment and frequent chemoresistance-associated relapse. Personalized drug screening holds promise in identifying optimal regimen, nevertheless, primary AML cells undergo spontaneous apoptosis during cultures, invalidating the drug screening results. Here, we reconstitute a 3D osteogenic niche (3DON) mimicking that in bone marrow to support primary AML cell survival and phenotype maintenance in cultures. Specifically, 3DON derived from osteogenically differentiated mesenchymal stem cells (MSC) from healthy and AML donors are co-cultured with primary AML cells. The AML cells under the AML_3DON niche showed enhanced viability, reduced apoptosis and maintained CD33+ CD34-phenotype, associating with elevated secretion of anti-apoptotic cytokines in the AML_3DON niche. Moreover, AML cells under the AML_3DON niche exhibited low sensitivity to two FDA-approved chemotherapeutic drugs, further suggesting the physiological resemblance of the AML_3DON niche. Most interestingly, AML cells co-cultured with the healthy_3DON niche are highly sensitive to the same sample drugs. This study demonstrates the differential responses of AML cells towards leukemic and healthy bone marrow niches, suggesting the impact of native cancer cell niche in drug screening, and the potential of re-engineering healthy bone marrow niche in AML patients as chemotherapeutic adjuvants overcoming chemoresistance, respectively.
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Affiliation(s)
- Hoi Lam Cheung
- School of Biomedical Science, Institute of Tissue Engineering and Regenerative Medicine, And Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China; Tissue Engineering Laboratory, Department of Mechanical Engineering, The University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, China; Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong SAR, China; Department of Medicine, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Yu Hin Wong
- School of Biomedical Science, Institute of Tissue Engineering and Regenerative Medicine, And Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China; Tissue Engineering Laboratory, Department of Mechanical Engineering, The University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, China; Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong SAR, China
| | - Yuk Yin Li
- School of Biomedical Science, Institute of Tissue Engineering and Regenerative Medicine, And Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China; Tissue Engineering Laboratory, Department of Mechanical Engineering, The University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, China
| | - Xingxing Yang
- Tissue Engineering Laboratory, Department of Mechanical Engineering, The University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, China
| | - Lok Him Ko
- School of Biomedical Science, Institute of Tissue Engineering and Regenerative Medicine, And Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Jessica Evangeline Tan Kabigting
- Tissue Engineering Laboratory, Department of Mechanical Engineering, The University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, China
| | - Koon Chuen Chan
- Department of Medicine, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Anskar Yu Hung Leung
- Department of Medicine, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Barbara Pui Chan
- School of Biomedical Science, Institute of Tissue Engineering and Regenerative Medicine, And Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China; Tissue Engineering Laboratory, Department of Mechanical Engineering, The University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, China; Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong SAR, China.
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2
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Kaminaga M, Otomo S, Tsunozaki S, Kadonosono T, Omata T. Fabrication of a Cancer Cell Aggregate Culture Device That Facilitates Observations of Nutrient and Oxygen Gradients. MICROMACHINES 2024; 15:689. [PMID: 38930659 PMCID: PMC11205477 DOI: 10.3390/mi15060689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/18/2024] [Accepted: 05/20/2024] [Indexed: 06/28/2024]
Abstract
Three-dimensional cell culture spheroids are commonly used for drug evaluation studies because they can produce large quantities of homogeneous cell aggregates. As the spheroids grow, nutrients supplied from outer spheroid regions render the inner spheroid areas hypoxic and hyponutrient, which makes them unobservable through confocal microscopy. In this study, we fabricated a cancer cell aggregate culture device that facilitates the observation of nutrient and oxygen gradients. An alginate gel fiber was created in the cell culture chamber to ensure a flow path for supplying the culture medium. A gradient of nutrients and oxygen was generated by positioning the flow channel close to the edge of the chamber. We devised a fabrication method that uses calcium carbonate as a source of Ca2+ for the gelation of sodium alginate, which has a slow reaction rate. We then cultured a spheroid of HCT116 cells, which were derived from human colorectal carcinoma using a fluorescent ubiquitination-based cell cycle indicator. Fluorescence observation suggested the formation of a hypoxic and hyponutrient region within an area approximately 500 µm away from the alginate gel fiber. This indicates the development of a cancer cell aggregate culture device that enables the observation of different nutrition and oxygen states.
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Affiliation(s)
- Maho Kaminaga
- Department of Mechanical Engineering, National Institute of Technology, Toyota Campus, 2-1 Eisei-cho, Toyota 471-0067, Aichi, Japan
| | - Shuta Otomo
- Department of Mechanical Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori ku, Yokohama 226-0026, Kanagawa, Japan (T.O.)
| | - Seisyu Tsunozaki
- Department of Mechanical Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori ku, Yokohama 226-0026, Kanagawa, Japan (T.O.)
| | - Tetuya Kadonosono
- Department of Life Science & Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori ku, Yokohama 226-0026, Kanagawa, Japan;
| | - Toru Omata
- Department of Mechanical Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori ku, Yokohama 226-0026, Kanagawa, Japan (T.O.)
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3
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Jia B, Huang H, Dong Z, Ren X, Lu Y, Wang W, Zhou S, Zhao X, Guo B. Degradable biomedical elastomers: paving the future of tissue repair and regenerative medicine. Chem Soc Rev 2024; 53:4086-4153. [PMID: 38465517 DOI: 10.1039/d3cs00923h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Degradable biomedical elastomers (DBE), characterized by controlled biodegradability, excellent biocompatibility, tailored elasticity, and favorable network design and processability, have become indispensable in tissue repair. This review critically examines the recent advances of biodegradable elastomers for tissue repair, focusing mainly on degradation mechanisms and evaluation, synthesis and crosslinking methods, microstructure design, processing techniques, and tissue repair applications. The review explores the material composition and cross-linking methods of elastomers used in tissue repair, addressing chemistry-related challenges and structural design considerations. In addition, this review focuses on the processing methods of two- and three-dimensional structures of elastomers, and systematically discusses the contribution of processing methods such as solvent casting, electrostatic spinning, and three-/four-dimensional printing of DBE. Furthermore, we describe recent advances in tissue repair using DBE, and include advances achieved in regenerating different tissues, including nerves, tendons, muscle, cardiac, and bone, highlighting their efficacy and versatility. The review concludes by discussing the current challenges in material selection, biodegradation, bioactivation, and manufacturing in tissue repair, and suggests future research directions. This concise yet comprehensive analysis aims to provide valuable insights and technical guidance for advances in DBE for tissue engineering.
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Affiliation(s)
- Ben Jia
- School of Civil Aviation, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Heyuan Huang
- School of Aeronautics, Northwestern Polytechnical University, Xi'an, 710072, China.
| | - Zhicheng Dong
- School of Civil Aviation, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Xiaoyang Ren
- School of Aeronautics, Northwestern Polytechnical University, Xi'an, 710072, China.
| | - Yanyan Lu
- School of Aeronautics, Northwestern Polytechnical University, Xi'an, 710072, China.
| | - Wenzhi Wang
- School of Aeronautics, Northwestern Polytechnical University, Xi'an, 710072, China.
| | - Shaowen Zhou
- Department of Periodontology, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Xin Zhao
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Baolin Guo
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
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4
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Honarvar A, Setayeshmehr M, Ghaedamini S, Hashemibeni B, Moroni L, Karbasi S. Chondrogenesis of mesenchymal stromal cells on the 3D printed polycaprolactone/fibrin/decellular cartilage matrix hybrid scaffolds in the presence of piascledine. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:799-822. [PMID: 38289681 DOI: 10.1080/09205063.2024.2307752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 01/17/2024] [Indexed: 02/01/2024]
Abstract
Nowadays, cartilage tissue engineering (CTE) is considered important due to lack of repair of cartilaginous lesions and the absence of appropriate methods for treatment. In this study, polycaprolactone (PCL) scaffolds were fabricated by three-dimensional (3D) printing and were then coated with fibrin (F) and acellular solubilized extracellular matrix (ECM). After extracting adipose-derived stem cells (ADSCs), 3D-printed scaffolds were characterized and compared to hydrogel groups. After inducing the chondrogenic differentiation in the presence of Piascledine and comparing it with TGF-β3 for 28 days, the expression of genes involved in chondrogenesis (AGG, COLII) and the expression of the hypertrophic gene (COLX) were examined by real-time PCR. The expression of proteins COLII and COLX was also determined by immunohistochemistry. Glycosaminoglycan was measured by toluidine blue staining. 3D-printed scaffolds clearly improved cell proliferation, viability, water absorption and compressive strength compared to the hydrogel groups. Moreover, the use of compounds such as ECM and Piascledine in the process of ADSCs chondrogenesis induction increased cartilage-specific markers and decreased the hypertrophic marker compared to TGF-β3. In Piascledine groups, the expression of COLL II protein, COLL II and Aggrecan genes, and the amount of glycosaminoglycan showed a significant increase in the PCL/F/ECM compared to the PCL and PCL/F groups.
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Affiliation(s)
- Ali Honarvar
- Cellular and Molecular Research Center, Faculty of Medicine, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Mohsen Setayeshmehr
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sho'leh Ghaedamini
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Batool Hashemibeni
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Lorenzo Moroni
- MERLN Institute for Technology Inspired Regenerative Medicine, Complex Tissue Regeneration, Maastricht University, Maastricht, The Netherlands
| | - Saeed Karbasi
- Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Lin J, Jia S, Cao F, Huang J, Chen J, Wang J, Liu P, Zeng H, Zhang X, Cui W. Research Progress on Injectable Microspheres as New Strategies for the Treatment of Osteoarthritis Through Promotion of Cartilage Repair. ADVANCED FUNCTIONAL MATERIALS 2024. [DOI: 10.1002/adfm.202400585] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Indexed: 07/07/2024]
Abstract
AbstractOsteoarthritis (OA) is a degenerative disease caused by a variety of factors with joint pain as the main symptom, including fibrosis, chapping, ulcers, and loss of cartilage. Traditional treatment can only delay the progression of OA, and classical delivery system have many side effects. In recent years, microspheres have shown great application prospects in the field of OA treatment. Microspheres can support cells, reproduce the natural tissue microenvironment in vitro and in vivo, and are an efficient delivery system for the release of drugs or biological agents, which can promote cell proliferation, migration, and differentiation. Thus, they have been widely used in cartilage repair and regeneration. In this review, preparation processes, basic materials, and functional characteristics of various microspheres commonly used in OA treatment are systematically reviewed. Then it is introduced surface modification strategies that can improve the biological properties of microspheres and discussed a series of applications of microsphere functionalized scaffolds in OA treatment. Finally, based on bibliometrics research, the research development, future potential, and possible research hotspots of microspheres in the field of OA therapy is systematically and dynamically evaluated. The comprehensive and systematic review will bring new understanding to the field of microsphere treatment of OA.
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Affiliation(s)
- Jianjing Lin
- Department of Sports Medicine and Rehabilitation Peking University Shenzhen Hospital Shenzhen Guangdong 518036 P. R. China
| | - Shicheng Jia
- Department of Sports Medicine and Rehabilitation Peking University Shenzhen Hospital Shenzhen Guangdong 518036 P. R. China
- Shantou University Medical College Shantou Guangdong 515041 P. R. China
| | - Fuyang Cao
- Department of Orthopedics Second Hospital of Shanxi Medical University Taiyuan Shanxi 030001 P. R. China
| | - Jingtao Huang
- Shantou University Medical College Shantou Guangdong 515041 P. R. China
| | - Jiayou Chen
- Department of Sports Medicine and Rehabilitation Peking University Shenzhen Hospital Shenzhen Guangdong 518036 P. R. China
- Shantou University Medical College Shantou Guangdong 515041 P. R. China
| | - Juan Wang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics Ruijin Hospital Shanghai Jiao Tong University School of Medicine Shanghai 200025 P. R. China
| | - Peng Liu
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials Peking University Shenzhen Hospital Shenzhen Guangdong 518036 P. R. China
| | - Hui Zeng
- Shenzhen Second People's Hospital (First Affiliated Hospital of Shenzhen University) Shenzhen Guangdong 518035 China
| | - Xintao Zhang
- Department of Sports Medicine and Rehabilitation Peking University Shenzhen Hospital Shenzhen Guangdong 518036 P. R. China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics Ruijin Hospital Shanghai Jiao Tong University School of Medicine Shanghai 200025 P. R. China
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6
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Burdis R, Gallostra XB, Kelly DJ. Temporal Enzymatic Treatment to Enhance the Remodeling of Multiple Cartilage Microtissues into a Structurally Organized Tissue. Adv Healthc Mater 2024; 13:e2300174. [PMID: 37858935 DOI: 10.1002/adhm.202300174] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 08/29/2023] [Indexed: 10/21/2023]
Abstract
Scaffold-free tissue engineering aims to recapitulate key aspects of normal developmental processes to generate biomimetic grafts. Although functional cartilaginous tissues are engineered using such approaches, considerable challenges remain. Herein, the benefits of engineering cartilage via the fusion of multiple cartilage microtissues compared to using (millions of) individual cells to generate a cartilaginous graft are demonstrated. Key advantages include the generation of a richer extracellular matrix, more hyaline-like cartilage phenotype, and superior shape fidelity. A major drawback of aggregate engineering is that individual microtissues do not completely (re)model and remnants of their initial architectures remain throughout the macrotissue. To address this, a temporal enzymatic (chondroitinase-ABC) treatment is implemented to accelerate structural (re)modeling and shown to support robust fusion between adjacent microtissues, enhance microtissue (re)modeling, and enable the development of a more biomimetic tissue with a zonally organized collagen network. Additionally, enzymatic treatment is shown to modulate matrix composition, tissue phenotype, and to a lesser extent, tissue mechanics. This work demonstrates that microtissue self-organization is an effective method for engineering scaled-up cartilage grafts with a predefined geometry and near-native levels of matrix accumulation. Importantly, key limitations associated with using biological building blocks can be alleviated by temporal enzymatic treatment during graft development.
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Affiliation(s)
- Ross Burdis
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, D02 PN40, Ireland
- Department of Mechanical, Manufacturing and Biomedical Engineering, School of Engineering, Trinity College Dublin, Dublin, D02 PN40, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Xavier Barceló Gallostra
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, D02 PN40, Ireland
- Department of Mechanical, Manufacturing and Biomedical Engineering, School of Engineering, Trinity College Dublin, Dublin, D02 PN40, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Daniel J Kelly
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, D02 PN40, Ireland
- Department of Mechanical, Manufacturing and Biomedical Engineering, School of Engineering, Trinity College Dublin, Dublin, D02 PN40, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin, D02 PN40, Ireland
- Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
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Seyyedin S, Ezzatabadipour M, Nematollahi-Mahani SN. The Role of Various Factors in Neural Differentiation of Human Umbilical Cord Mesenchymal Stem Cells with a Special Focus on the Physical Stimulants. Curr Stem Cell Res Ther 2024; 19:166-177. [PMID: 36734908 DOI: 10.2174/1574888x18666230124151311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 10/05/2022] [Accepted: 11/25/2022] [Indexed: 02/04/2023]
Abstract
Human umbilical cord matrix-derived mesenchymal stem cells (hUCMs) are considered as ideal tools for cell therapy procedures and regenerative medicine. The capacity of these cells to differentiate into neural lineage cells make them potentially important in the treatment of various neurodegenerative diseases. An electronic search was performed in Web of Science, PubMed/MEDLINE, Scopus and Google Scholar databases for articles published from January 1990 to March 2022. This review discusses the current knowledge on the effect of various factors, including physical, chemical and biological stimuli which play a key role in the differentiation of hUCMs into neural and glial cells. Moreover, the currently understood molecular mechanisms involved in the neural differentiation of hUCMs under various environmental stimuli are reviewed. Various stimuli, especially physical stimuli and specifically different light sources, have revealed effects on neural differentiation of mesenchymal stem cells, including hUCMs; however, due to the lack of information about the exact mechanisms, there is still a need to find optimal conditions to promote the differentiation capacity of these cells which in turn can lead to significant progress in the clinical application of hUCMs for the treatment of neurological disorders.
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Affiliation(s)
- Sajad Seyyedin
- Department of Anatomical Sciences, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Massood Ezzatabadipour
- Department of Anatomical Sciences, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
- Physiology Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Seyed Noureddin Nematollahi-Mahani
- Department of Anatomical Sciences, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
- Neuroscience Research Center, Kerman University of Medical Sciences, Kerman, Iran
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Chiesa I, Esposito A, Vozzi G, Gottardi R, De Maria C. 4D bioprinted self-folding scaffolds enhance cartilage formation in the engineering of trachea. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.06.570378. [PMID: 38105967 PMCID: PMC10723422 DOI: 10.1101/2023.12.06.570378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Trachea defects that required surgical interventions are increasing in number in the recent years, especially for pediatric patients. However, current gold standards, such as biological grafts and synthetic prothesis, do not represent an effective solution, due to the lack of mimicry and regeneration capability. Bioprinting is a cutting-edge approach for the fabrication of biomimetic scaffold to empower tissue engineering toward trachea replacement. In this study, we developed a self-folding gelatin-based bilayer scaffold for trachea engineering, exploiting the 4D bioprinting approach, namely the fabrication of dynamic scaffolds, able to shape morph in a predefined way after the application of an environmental stimulus. Indeed, starting form a 2D flat position, upon hydration, this scaffold forms a closed tubular structure. An analytical model, based on Timoshenko's beam thermostats, was developed, and validated to predict the radius of curvature of the scaffold according to the material properties and the scaffold geometry. The 4D bioprinted structure was tested with airway fibroblast, lung endothelial cells and ear chondral progenitor cells (eCPCs) toward the development of a tissue engineered trachea. Cells were seeded on the scaffold in its initial flat position, maintained their position after the scaffold actuation and proliferated over or inside it. The ability of eCPCs to differentiate towards mature cartialge was evaluated. Interestingly, real-time PCR revealed that differentiating eCPCs on the 4D bioprinted scaffold promote healthy cartilage formation, if compared with eCPCs cultured on 2D static scaffold. Thus, eCPCs can perceive scaffold folding and its final curvature and to react to it, towards the formation of mature cartilage for the airway.
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Tan S, Qiu Y, Xiong H, Wang C, Chen Y, Wu W, Yang Z, Zhao F. Mussel-inspired cortical bone-adherent bioactive composite hydrogels promote bone augmentation through sequential regulation of endochondral ossification. Mater Today Bio 2023; 23:100843. [PMID: 37942424 PMCID: PMC10628777 DOI: 10.1016/j.mtbio.2023.100843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 10/11/2023] [Accepted: 10/22/2023] [Indexed: 11/10/2023] Open
Abstract
Endochondral ossification (ECO) plays an integral part in bone augmentation, which undergoes sequential processes including mesenchymal stem cells (MSC) condensation, chondrocyte differentiation, chondrocyte hypertrophy, and mineralized bone formation. Thus, accelerating these steps will speed up the osteogenesis process through ECO. Herein, inspired by the marine mussels' adhesive mechanism, a bioactive glass-dopamine (BG-Dopa) hydrogel was prepared by distributing the micro-nano BG to aldehyde modified hyaluronic acid with dopamine-modified gelatin. By in vitro and in vivo experiments, we confirm that after implanting in the bone augmentation position, the hydrogel can adhere to the cortical bone surface firmly without sliding. Moreover, the condensation and hypertrophy of stem cells were accelerated at the early stage of ECO. Whereafter, the osteogenic differentiation of the hypertrophic chondrocytes was promoted, which lead to accelerating the late stage of ECO process to achieve more bone augmentation. This experiment provides a new idea for the design of bone augmentation materials.
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Affiliation(s)
- Shuyi Tan
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China
| | - Yonghao Qiu
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China
| | - Huacui Xiong
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China
| | - Chunhui Wang
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China
| | - Yifan Chen
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China
| | - Wangxi Wu
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China
| | - Zhen Yang
- Center for Health Science and Engineering, Hebei Key Laboratory of Biomaterials and Smart Theranostics, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin, 300131, China
| | - Fujian Zhao
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China
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10
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Qin Y, Coleman RM. Ligand Composition and Coating Density Co-Modulate the Chondrocyte Function on Poly(glycerol-dodecanedioate). J Funct Biomater 2023; 14:468. [PMID: 37754882 PMCID: PMC10531919 DOI: 10.3390/jfb14090468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/05/2023] [Accepted: 09/08/2023] [Indexed: 09/28/2023] Open
Abstract
Inducing chondrocyte redifferentiation and promoting cartilaginous matrix accumulation are key challenges in the application of biomaterials in articular cartilage repair. Poly(glycerol-dodecanedioate) (PGD) is a viable candidate for scaffold design in cartilage tissue engineering (CTE). However, the surface properties of PGD are not ideal for cell attachment and growth due to its relative hydrophobicity compared with natural extracellular matrix (ECM). In this study, PGD was coated with various masses of collagen type I or hyaluronic acid, individually or in combination, to generate a cell-material interface with biological cues. The effects of ligand composition and density on the PGD surface properties and shape, metabolic activity, cell phenotype, and ECM production of human articular chondrocytes (hACs) were evaluated. Introducing ECM ligands on PGD significantly improved its hydrophilicity and promoted the chondrocyte's anabolic activity. The morphology and anabolic activity of hACs on PGD were co-modulated by ligand composition and density, suggesting a combinatorial effect of both coating parameters on chondrocyte function during monolayer culture. Hyaluronic acid and its combination with collagen maintained a round cell shape and redifferentiated phenotype. This study demonstrated the complex mechanism of ligand-guided interactions between cell and biomaterial substrate and the potential of PGD as a scaffold material in the field of CTE.
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Affiliation(s)
- Yue Qin
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA;
| | - Rhima M. Coleman
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA;
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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Wen Y, Chen Y, Wu W, Zhang H, Peng Z, Yao X, Zhang X, Jiang W, Liao Y, Xie Y, Shen X, Sun H, Hu J, Liu H, Chen X, Chen J, Ouyang H. Hyperplastic Human Macromass Cartilage for Joint Regeneration. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2301833. [PMID: 37395375 PMCID: PMC10502860 DOI: 10.1002/advs.202301833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/07/2023] [Indexed: 07/04/2023]
Abstract
Cartilage damage affects millions of people worldwide. Tissue engineering strategies hold the promise to provide off-the-shelf cartilage analogs for tissue transplantation in cartilage repair. However, current strategies hardly generate sufficient grafts, as tissues cannot maintain size growth and cartilaginous phenotypes simultaneously. Herein, a step-wise strategy is developed for fabricating expandable human macromass cartilage (macro-cartilage) in a 3D condition by employing human polydactyly chondrocytes and a screen-defined serum-free customized culture (CC). CC-induced chondrocytes demonstrate improved cell plasticity, expressing chondrogenic biomarkers after a 14.59-times expansion. Crucially, CC-chondrocytes form large-size cartilage tissues with average diameters of 3.25 ± 0.05 mm, exhibiting abundant homogenous matrix and intact structure without a necrotic core. Compared with typical culture, the cell yield in CC increases 2.57 times, and the expression of cartilage marker collagen type II increases 4.70 times. Transcriptomics reveal that this step-wise culture drives a proliferation-to-differentiation process through an intermediate plastic stage, and CC-chondrocytes undergo a chondral lineage-specific differentiation with an activated metabolism. Animal studies show that CC macro-cartilage maintains a hyaline-like cartilage phenotype in vivo and significantly promotes the healing of large cartilage defects. Overall, an efficient expansion of human macro-cartilage with superior regenerative plasticity is achieved, providing a promising strategy for joint regeneration.
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Piperigkou Z, Bainantzou D, Makri N, Papachristou E, Mantsou A, Choli-Papadopoulou T, Theocharis AD, Karamanos NK. Enhancement of mesenchymal stem cells' chondrogenic potential by type II collagen-based bioscaffolds. Mol Biol Rep 2023; 50:5125-5135. [PMID: 37118382 PMCID: PMC10209287 DOI: 10.1007/s11033-023-08461-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 04/12/2023] [Indexed: 04/30/2023]
Abstract
BACKGROUND Osteoarthritis (OA) is a common degenerative chronic disease accounting for physical pain, tissue stiffness and mobility restriction. Current therapeutic approaches fail to prevent the progression of the disease considering the limited knowledge on OA pathobiology. During OA progression, the extracellular matrix (ECM) of the cartilage is aberrantly remodeled by chondrocytes. Chondrocytes, being the main cell population of the cartilage, participate in cartilage regeneration process. To this end, modern tissue engineering strategies involve the recruitment of mesenchymal stem cells (MSCs) due to their regenerative capacity as to promote chondrocyte self-regeneration. METHODS AND RESULTS In the present study, we evaluated the role of type II collagen, as the main matrix macromolecule in the cartilage matrix, to promote chondrogenic differentiation in two MSC in vitro culture systems. The chondrogenic differentiation of human Wharton's jelly- and dental pulp-derived MSCs was investigated over a 24-day culture period on type II collagen coating to improve the binding affinity of MSCs. Functional assays, demonstrated that type II collagen promoted chondrogenic differentiation in both MSCs tested, which was confirmed through gene and protein analysis of major chondrogenic markers. CONCLUSIONS Our data support that type II collagen contributes as a natural bioscaffold enhancing chondrogenesis in both MSC models, thus enhancing the commitment of MSC-based therapeutic approaches in regenerative medicine to target OA and bring therapy closer to the clinical use.
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Affiliation(s)
- Zoi Piperigkou
- Biochemistry, Biochemical Analysis and Matrix Pathobiology Research Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, Patras, Greece
- Foundation for Research and Technology-Hellas (FORTH)/Institute of Chemical Engineering Sciences (ICE-HT), Patras, Greece
| | - Dimitra Bainantzou
- Biochemistry, Biochemical Analysis and Matrix Pathobiology Research Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, Patras, Greece
| | - Nadia Makri
- Biochemistry, Biochemical Analysis and Matrix Pathobiology Research Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, Patras, Greece
| | - Eleni Papachristou
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Aglaia Mantsou
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Theodora Choli-Papadopoulou
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Achilleas D Theocharis
- Biochemistry, Biochemical Analysis and Matrix Pathobiology Research Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, Patras, Greece.
| | - Nikos K Karamanos
- Biochemistry, Biochemical Analysis and Matrix Pathobiology Research Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, Patras, Greece.
- Foundation for Research and Technology-Hellas (FORTH)/Institute of Chemical Engineering Sciences (ICE-HT), Patras, Greece.
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13
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Huang D, Li Y, Ma Z, Lin H, Zhu X, Xiao Y, Zhang X. Collagen hydrogel viscoelasticity regulates MSC chondrogenesis in a ROCK-dependent manner. SCIENCE ADVANCES 2023; 9:eade9497. [PMID: 36763657 PMCID: PMC9916999 DOI: 10.1126/sciadv.ade9497] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 01/10/2023] [Indexed: 06/18/2023]
Abstract
Mesenchymal stem cell (MSC) chondrogenesis in three-dimensional (3D) culture involves dynamic changes in cytoskeleton architecture during mesenchymal condensation before morphogenesis. However, the mechanism linking dynamic mechanical properties of matrix to cytoskeletal changes during chondrogenesis remains unclear. Here, we investigated how viscoelasticity, a time-dependent mechanical property of collagen hydrogel, coordinates MSC cytoskeleton changes at different stages of chondrogenesis. The viscoelasticity of collagen hydrogel was modulated by controlling the gelling process without chemical cross-linking. In slower-relaxing hydrogels, although a disordered cortical actin promoted early chondrogenic differentiation, persistent myosin hyperactivation resulted in Rho-associated kinase (ROCK)-dependent apoptosis. Meanwhile, faster-relaxing hydrogels promoted cell-matrix interactions and eventually facilitated long-term chondrogenesis with mitigated myosin hyperactivation and cell apoptosis, similar to the effect of ROCK inhibitors. The current work not only reveals how matrix viscoelasticity coordinates MSC chondrogenesis and survival in a ROCK-dependent manner but also highlights viscoelasticity as a design parameter for biomaterials for chondrogenic 3D culture.
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Ingeniería de tejidos en población pediátrica: una esperanza para el tratamiento de enfermedades valvulares mitrales congénitas. CIRUGIA CARDIOVASCULAR 2023. [DOI: 10.1016/j.circv.2022.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
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15
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Cao Y, Tan J, Zhao H, Deng T, Hu Y, Zeng J, Li J, Cheng Y, Tang J, Hu Z, Hu K, Xu B, Wang Z, Wu Y, Lobie PE, Ma S. Bead-jet printing enabled sparse mesenchymal stem cell patterning augments skeletal muscle and hair follicle regeneration. Nat Commun 2022; 13:7463. [PMID: 36460667 PMCID: PMC9718784 DOI: 10.1038/s41467-022-35183-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 11/22/2022] [Indexed: 12/05/2022] Open
Abstract
Transplantation of mesenchymal stem cells (MSCs) holds promise to repair severe traumatic injuries. However, current transplantation practices limit the potential of this technique, either by losing the viable MSCs or reducing the performance of resident MSCs. Herein, we design a "bead-jet" printer, specialized for high-throughput intra-operative formulation and printing of MSCs-laden Matrigel beads. We show that high-density encapsulation of MSCs in Matrigel beads is able to augment MSC function, increasing MSC proliferation, migration, and extracellular vesicle production, compared with low-density bead or high-density bulk encapsulation of the equivalent number of MSCs. We find that the high-density MSCs-laden beads in sparse patterns demonstrate significantly improved therapeutic performance, by regenerating skeletal muscles approaching native-like cell density with reduced fibrosis, and regenerating skin with hair follicle growth and increased dermis thickness. MSC proliferation within 1-week post-transplantation and differentiation at 3 - 4 weeks post-transplantation are suggested to contribute therapy augmentation. We expect this "bead-jet" printing system to strengthen the potential of MSC transplantation.
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Affiliation(s)
- Yuanxiong Cao
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China
| | - Jiayi Tan
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China
| | - Haoran Zhao
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China
| | - Ting Deng
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China
| | - Yunxia Hu
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China
| | - Junhong Zeng
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China
| | - Jiawei Li
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China
| | - Yifan Cheng
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China
| | - Jiyuan Tang
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China
| | - Zhiwei Hu
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China
| | - Keer Hu
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China
| | - Bing Xu
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China ,grid.510951.90000 0004 7775 6738Shenzhen Bay Laboratory, 518055 Shenzhen, China
| | - Zitian Wang
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China
| | - Yaojiong Wu
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China
| | - Peter E. Lobie
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China ,grid.510951.90000 0004 7775 6738Shenzhen Bay Laboratory, 518055 Shenzhen, China
| | - Shaohua Ma
- grid.12527.330000 0001 0662 3178Tsinghua Shenzhen International Graduate School (SIGS), Tsinghua University, 518055 Shenzhen, China ,grid.499361.0Tsinghua-Berkeley Shenzhen Institute (TBSI), 518055 Shenzhen, China ,grid.510951.90000 0004 7775 6738Shenzhen Bay Laboratory, 518055 Shenzhen, China ,grid.12527.330000 0001 0662 3178Institute for Brain and Cognitive Sciences, Tsinghua University, 100084 Beijing, China
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Cheng HW, Chik TK, Weir JW, Chan BP. Differentiation of Equine Mesenchymal Stem Cells into Cells of Osteochondral Lineage: Potential for Osteochondral Tissue Engineering. Biomed Mater 2022; 17. [PMID: 36001983 DOI: 10.1088/1748-605x/ac8c76] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 08/24/2022] [Indexed: 11/11/2022]
Abstract
Damage to the hyaline cartilage of the joint surface and osteochondral fractures are key factors leading to the development of osteoarthritis in racehorses, representing a significant cause of racehorse retirement. To tissue-engineer an osteochondral unit that is suitable for joint repair, incorporation of a zone of calcified cartilage should be considered so as to mimic its in vivo counterpart. To date, equine mesenchymal stem cells (eMSCs) have been reported to have multilineage differentiation potential. Yet the generation of a zone of calcified cartilage using eMSCs has not been reported. This work is an initial attempt to generate a zone of calcified cartilage using eMSCs as the single source of cells and collagen as the scaffolding material. Main advantages of using eMSCs over equine deep zone chondrocytes for the generation of a zone of calcified cartilage include no donor site morbidity and their ease of expansion in culture. Initially, we fabricated cartilage-like tissues and bone-like tissues in vitro by differentiating eMSCs towards chondrogenic and osteogenic lineages for 21 days, respectively. We then aggregated the cartilage-like and bone-like tissues together with a layer of undifferentiated eMSCs-collagen gel in between to generate a 3-layer osteochondral unit. A zone of calcified cartilage was found between the cartilage-like and bone-like layers after a 14-day culture in chondrogenic differentiation medium. These results provide a solution towards tissue engineering of equine osteochondral units with interfacial zone without using chondrocytes harvested from the deep zone of healthy articular cartilage, and contribute to the future development of osteochondral tissue engineering strategies for human cartilage injuries in the long run.
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Affiliation(s)
- H W Cheng
- Tissue Engineering Lab, Mechanical Engineering, The University of Hong Kong Faculty of Engineering, Pokfulam Road, Hong Kong, 00000, HONG KONG
| | - T K Chik
- Tissue Engineering Lab, Mechanical Engineering, The University of Hong Kong Faculty of Engineering, Pokfulam Road, Hong Kong, 00000, HONG KONG
| | - J W Weir
- The Hong Kong Jockey Club, Sha Tin Racecourse, Shatin, Hong Kong, 00000, HONG KONG
| | - B P Chan
- Tissue Engineering Lab, Mechanical Engineering, The University of Hong Kong Faculty of Engineering, Room 711, Haking Wong Building, Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, Hong Kong, 00000, CHINA
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17
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Morphological Dependence of Breast Cancer Cell Responses to Doxorubicin on Micropatterned Surfaces. Polymers (Basel) 2022; 14:polym14142761. [PMID: 35890536 PMCID: PMC9323815 DOI: 10.3390/polym14142761] [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: 05/27/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 11/17/2022] Open
Abstract
Cell morphology has been widely investigated for its influence on the functions of normal cells. However, the influence of cell morphology on cancer cell resistance to anti-cancer drugs remains unclear. In this study, micropatterned surfaces were prepared and used to control the spreading area and elongation of human breast cancer cell line. The influences of cell adhesion area and elongation on resistance to doxorubicin were investigated. The percentage of apoptotic breast cancer cells decreased with cell spreading area, while did not change with cell elongation. Large breast cancer cells had higher resistance to doxorubicin, better assembled actin filaments, higher DNA synthesis activity and higher expression of P-glycoprotein than small breast cancer cells. The results suggested that the morphology of breast cancer cells could affect their resistance to doxorubicin. The influence was correlated with cytoskeletal organization, DNA synthesis activity and P-glycoprotein expression.
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18
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[Research progress of different cell seeding densities and cell ratios in cartilage tissue engineering]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2022; 36:470-478. [PMID: 35426288 PMCID: PMC9011064 DOI: 10.7507/1002-1892.202110091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
OBJECTIVE To review the research progress of different cell seeding densities and cell ratios in cartilage tissue engineering. METHODS The literature about tissue engineered cartilage constructed with three-dimensional scaffold was extensively reviewed, and the seeding densities and ratios of most commonly used seed cells were summarized. RESULTS Articular chondrocytes (ACHs) and bone marrow mesenchymal stem cells (BMSCs) are the most commonly used seed cells, and they can induce hyaline cartilage formation in vitro and in vivo. Cell seeding density and cell ratio both play important roles in cartilage formation. Tissue engineered cartilage with good quality can be produced when the cell seeding density of ACHs or BMSCs reaches or exceeds that in normal articular cartilage. Under the same culture conditions, the ability of pure BMSCs to build hyaline cartilage is weeker than that of pure ACHs or co-culture of both. CONCLUSION Due to the effect of scaffold materials, growth factors, and cell passages, optimal cell seeding density and cell ratio need further study.
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ELBAZ H, DEMERDASH Z, ELZALLAT M, MAHMOUD FS, HASSAN S, HASSAN M, TAHA T, RASHEED DM, GAAFAR T. Passaging of CB-MSCs at high and low cell densities: impact on telomere length and differentiation potentials. GAZZETTA MEDICA ITALIANA ARCHIVIO PER LE SCIENZE MEDICHE 2022. [DOI: 10.23736/s0393-3660.19.04277-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Human Olfactory Mucosa Stem Cells Delivery Using a Collagen Hydrogel: As a Potential Candidate for Bone Tissue Engineering. MATERIALS 2021; 14:ma14143909. [PMID: 34300827 PMCID: PMC8306468 DOI: 10.3390/ma14143909] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/02/2021] [Accepted: 07/06/2021] [Indexed: 12/16/2022]
Abstract
For bone tissue engineering, stem cell-based therapy has become a promising option. Recently, cell transplantation supported by polymeric carriers has been increasingly evaluated. Herein, we encapsulated human olfactory ectomesenchymal stem cells (OE-MSC) in the collagen hydrogel system, and their osteogenic potential was assessed in vitro and in vivo conditions. Collagen type I was composed of four different concentrations of (4 mg/mL, 5 mg/mL, 6 mg/mL, 7 mg/mL). SDS-Page, FTIR, rheologic test, resazurin assay, live/dead assay, and SEM were used to characterize collagen hydrogels. OE-MSCs encapsulated in the optimum concentration of collagen hydrogel and transplanted in rat calvarial defects. The tissue samples were harvested after 4- and 8-weeks post-transplantation and assessed by optical imaging, micro CT, and H&E staining methods. The highest porosity and biocompatibility were confirmed in all scaffolds. The collagen hydrogel with 7 mg/mL concentration was presented as optimal mechanical properties close to the naïve bone. Furthermore, the same concentration illustrated high osteogenic differentiation confirmed by real-time PCR and alizarin red S methods. Bone healing has significantly occurred in defects treated with OE-MSCs encapsulated hydrogels in vivo. As a result, OE-MSCs with suitable carriers could be used as an appropriate cell source to address clinical bone complications.
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Whelan IT, Moeendarbary E, Hoey DA, Kelly DJ. Biofabrication of vasculature in microphysiological models of bone. Biofabrication 2021; 13. [PMID: 34034238 DOI: 10.1088/1758-5090/ac04f7] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 05/25/2021] [Indexed: 11/12/2022]
Abstract
Bone contains a dense network of blood vessels that are essential to its homoeostasis, endocrine function, mineral metabolism and regenerative functions. In addition, bone vasculature is implicated in a number of prominent skeletal diseases, and bone has high affinity for metastatic cancers. Despite vasculature being an integral part of bone physiology and pathophysiology, it is often ignored or oversimplified inin vitrobone models. However, 3D physiologically relevant vasculature can now be engineeredin vitro, with microphysiological systems (MPS) increasingly being used as platforms for engineering this physiologically relevant vasculature. In recent years, vascularised models of bone in MPSs systems have been reported in the literature, representing the beginning of a possible technological step change in how bone is modelledin vitro. Vascularised bone MPSs is a subfield of bone research in its nascency, however given the impact of MPSs has had inin vitroorgan modelling, and the crucial role of vasculature to bone physiology, these systems stand to have a substantial impact on bone research. However, engineering vasculature within the specific design restraints of the bone niche is significantly challenging given the different requirements for engineering bone and vasculature. With this in mind, this paper aims to serve as technical guidance for the biofabrication of vascularised bone tissue within MPS devices. We first discuss the key engineering and biological considerations for engineering more physiologically relevant vasculaturein vitrowithin the specific design constraints of the bone niche. We next explore emerging applications of vascularised bone MPSs, and conclude with a discussion on the current status of vascularised bone MPS biofabrication and suggest directions for development of next generation vascularised bone MPSs.
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22
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Yang J, Tang Z, Liu Y, Luo Z, Xiao Y, Zhang X. Comparison of chondro-inductivity between collagen and hyaluronic acid hydrogel based on chemical/physical microenvironment. Int J Biol Macromol 2021; 182:1941-1952. [PMID: 34062160 DOI: 10.1016/j.ijbiomac.2021.05.188] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 05/14/2021] [Accepted: 05/27/2021] [Indexed: 02/09/2023]
Abstract
Achieving chondrogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) successfully is crucial for cartilage regeneration. To date, various hydrogels with different chemical microenvironment have been used to modulate chondrogenic differentiation of BMSCs, especially collagen and hyaluronic acid hydrogel. However, the chondro-inductive ability of collagen and hyaluronic acid hydrogel has not been evaluated yet and the different chemical and physical microenvironment of these two hydrogels increase the difficulty of comparison. In this study, three different hydrogels based on collagen and hyaluronic acid (self-assembled collagen hydrogel (Col), self-assembled collagen hydrogel cross-linked with genipin (Cgp), and methacrylated hyaluronic acid hydrogel (HA)) were prepared and their chondro-inductive ability on the encapsulated BMSCs was evaluated. Col and Cgp have the same chemical composition and similar microstructure, but are different from HA, while Cgp and HA hydrogels have the same mechanical strength. It was found that chemical and physical microenvironments of the hydrogels combined to influence cell condensation. Thanks to cell condensation was more likely to occur in collagen hydrogels in the early stage, the cartilage-induced ability was in the order of Col > Cgp > HA. However, the severe shrinkage of Col and Cgp resulted in no enough space for cell proliferation within hydrogels in the later stage. In contrast, relatively stable physical microenvironment of HA helped to maintain continuous production of cartilage-related matrix in the later stage. Overall, these results revealed that the chondro-inductive ability of collagen and hyaluronic acid hydrogel with different chemical and physical microenvironment cannot be evaluated by a particular time period. However, it provided important information for optimization and design of the future hydrogels towards successful repair of articular cartilage.
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Affiliation(s)
- Jirong Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 61004, Sichuan, China; Research Center for Human Tissue and Organs Degeneration, Institute Biomedical and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangzhou, China
| | - Zizhao Tang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 61004, Sichuan, China
| | - Yifan Liu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 61004, Sichuan, China
| | - Zhaocong Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 61004, Sichuan, China
| | - Yumei Xiao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 61004, Sichuan, China.
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 61004, Sichuan, China
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DeFroda SF, Cregar W, Vadhera A, Singh H, Perry A, Chahla J. Arthroscopic Autologous Chondrocyte Bone Grafting of a Lateral Tibial Plateau Chondral Defect. Arthrosc Tech 2021; 10:e861-e865. [PMID: 33738225 PMCID: PMC7953324 DOI: 10.1016/j.eats.2020.10.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 10/30/2020] [Indexed: 02/03/2023] Open
Abstract
Tibial plateau chondral defects can be difficult to diagnose and treat. Although grafting of femoral and patella chondral defects has become relatively commonplace, the tibial plateau offers unique challenges for some of the grafting techniques used in these locations, mostly because of limitations with exposure even in an open approach. Arthroscopic surgery makes treatment of these lesions more feasible, as it affords better access and visualization of tibial defects. The purpose of this article is to describe the arthroscopic management of a lateral tibial plateau chondral defect via autologous chondrocyte bone grafting. The technique consists of harvest of autologous cartilage from the intercondylar notch and repair of the tibial plateau defect with a slurry of autologous chondrocytes and bone marrow aspirate concentrate. In addition, CO2 is used as a medium to distend the joint in a tight compartment to keep the chondral defect dry. This technique is technically simple and does not require an extensive open technique or an expensive osteochondral allograft. It also avoids the staged management required in other types of autologous chondrocyte implantation, which require cartilage biopsy to produce a final product for implantation.
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Affiliation(s)
| | | | | | | | | | - Jorge Chahla
- Address correspondence to Jorge Chahla, M.D., Ph.D., Rush University Medical Center, 1611 W Harrison St, Chicago, IL 60612, U.S.A.
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Lehnert S, Sikorski P. Tailoring the assembly of collagen fibers in alginate microspheres. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 121:111840. [PMID: 33579478 DOI: 10.1016/j.msec.2020.111840] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/10/2020] [Accepted: 12/27/2020] [Indexed: 12/20/2022]
Abstract
The application of microspheres instead of bulk hydrogels in cell-laden biomaterials offers multiple advantages such as a high surface-to-volume-ratio and, consequently, a better nutrition and oxygen transfer to and from cells. The preparation of inert alginate microspheres is facile, quick, and well-established and the fabrication of alginate-collagen microspheres has been previously reported. However, no detailed characterization of the collagen fibrillogenesis in the alginate matrix is available. We use second-harmonic imaging microscopy reflection confocal microscopy and turbidity assay to study the assembly of collagen in alginate microspheres. We show that the assembly of collagen fibers in a gelled alginate matrix is a complex process that can be aided by addition of small polar molecules, such as glycine and by a careful selection of the gelling buffer used to prepare alginate hydrogels.
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Affiliation(s)
- Sarah Lehnert
- Department of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.
| | - Pawel Sikorski
- Department of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
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25
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Pei Y, Jordan KE, Xiang N, Parker RN, Mu X, Zhang L, Feng Z, Chen Y, Li C, Guo C, Tang K, Kaplan DL. Liquid-Exfoliated Mesostructured Collagen from the Bovine Achilles Tendon as Building Blocks of Collagen Membranes. ACS APPLIED MATERIALS & INTERFACES 2021; 13:3186-3198. [PMID: 33398989 DOI: 10.1021/acsami.0c20330] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Mesoscaled assemblies are organized in native collagen tissues to achieve remarkable and diverse performance and functions. In this work, a facile, low-cost, and controllable liquid exfoliation method was applied to directly extract these collagen mesostructures from bovine Achilles tendons using a sodium hydroxide (NaOH)/urea aqueous system with freeze-thaw cycles and sonication. A series of collagen fibrils with diameters of 26-230 nm were harvested using this process, and in situ observations under polarizing microscopy (POM) and using molecular dynamics simulations revealed the influence of the NaOH/urea system on the tendon collagen. FTIR and XRD results confirmed that these collagen fibrils preserved typical structural characteristics of type I collagen. These isolated collagen fibrils were then utilized as building blocks to fabricate free-standing collagen membranes, which exhibited good stability in solvents and outstanding mechanical properties and transparency, with potential for utility in optical and electronic sensors. Moreover, in vitro and vivo evaluations demonstrated that these new resulting collagen membranes had good cytocompatibility, biocompatibility, and degradability for potential applications in biomedicine. This work provides a new approach for collagen processing by liquid exfoliation with utility for the formation of robust collagen materials that consist of native collagen mesostructures as building blocks.
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Affiliation(s)
- Ying Pei
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Kathryn E Jordan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Ning Xiang
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Rachael N Parker
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Xuan Mu
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Luan Zhang
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Zhibin Feng
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Ying Chen
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Chunmei Li
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Chengchen Guo
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
- School of Engineering, Westlake University, Hangzhou, Zhejiang 310012, China
| | - Keyong Tang
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
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26
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Liu YYF, Lu Y, Oh S, Conduit GJ. Machine learning to predict mesenchymal stem cell efficacy for cartilage repair. PLoS Comput Biol 2020; 16:e1008275. [PMID: 33027251 PMCID: PMC7571701 DOI: 10.1371/journal.pcbi.1008275] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 10/19/2020] [Accepted: 08/20/2020] [Indexed: 12/13/2022] Open
Abstract
Inconsistent therapeutic efficacy of mesenchymal stem cells (MSCs) in regenerative medicine has been documented in many clinical trials. Precise prediction on the therapeutic outcome of a MSC therapy based on the patient's conditions would provide valuable references for clinicians to decide the treatment strategies. In this article, we performed a meta-analysis on MSC therapies for cartilage repair using machine learning. A small database was generated from published in vivo and clinical studies. The unique features of our neural network model in handling missing data and calculating prediction uncertainty enabled precise prediction of post-treatment cartilage repair scores with coefficient of determination of 0.637 ± 0.005. From this model, we identified defect area percentage, defect depth percentage, implantation cell number, body weight, tissue source, and the type of cartilage damage as critical properties that significant impact cartilage repair. A dosage of 17 - 25 million MSCs was found to achieve optimal cartilage repair. Further, critical thresholds at 6% and 64% of cartilage damage in area, and 22% and 56% in depth were predicted to significantly compromise on the efficacy of MSC therapy. This study, for the first time, demonstrated machine learning of patient-specific cartilage repair post MSC therapy. This approach can be applied to identify and investigate more critical properties involved in MSC-induced cartilage repair, and adapted for other clinical indications.
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Affiliation(s)
- Yu Yang Fredrik Liu
- Theory of Condensed Matter Group, Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
- * E-mail:
| | - Yin Lu
- Bioprocessing Technology Institute, Agency for Science Technology and Research (A*STAR), Singapore, Singapore
| | - Steve Oh
- Bioprocessing Technology Institute, Agency for Science Technology and Research (A*STAR), Singapore, Singapore
| | - Gareth J. Conduit
- Theory of Condensed Matter Group, Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
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27
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Price JC, Krause AL, Waters SL, El Haj AJ. Predicting Bone Formation in Mesenchymal Stromal Cell-Seeded Hydrogels Using Experiment-Based Mathematical Modeling. Tissue Eng Part A 2020; 26:1014-1023. [PMID: 32178595 DOI: 10.1089/ten.tea.2020.0027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
In vitro bone formation by mesenchymal stromal cells encapsulated in type-1 collagen hydrogels is demonstrated after a 28-day in vitro culture period. Analysis of the hydrogels is carried out by X-ray microcomputed tomography, histology, and immunohistochemistry, which collectively demonstrates that bone formation in the hydrogels was quantifiably proportional to the initial collagen concentration, and subsequently the population density of seeded cells. This was established by varying the initial collagen concentration at a constant cell seeding density (3 × 105 cells/0.3 mL hydrogel), and separately varying cell seeding density at a constant collagen concentration (1 mg/mL). Using these data, a mathematical model is presented for the total hydrogel volume and mineralization volume based on the observed linear contraction dynamics of cell-seeded collagen gels. The model parameters are fitted by comparing the predictions of the mathematical model for the hydrogel and mineralized volumes on day 28 with the experimental data. The model is then used to predict the hydrogel and mineralization volumes for a range of hydrogel collagen concentrations and cell seeding densities, providing comprehensive input/output descriptors for generating mineralized hydrogels for bone tissue engineering. It is proposed that this quantitative approach will be a useful tool for generating in vitro manufactured bone tissue, defining input parameters that yield predictable output measures of tissue maturation. Impact statement This article describes a simple yet powerful quantitative description of in vitro tissue-engineered bone by combining experimental data with mathematical modeling. The overall aim of the article is to examine what is currently known about cell-mediated collagen contraction, and demonstrate that this phenomenon can be exploited to tailor bone formation by choosing a specific set of input parameters in the form of cell seeding density and collagen hydrogel concentration. Our study utilizes a clinically relevant cell source (human mesenchymal stem cells) with a biomaterial that has received regulatory approval for use in humans (collagen type 1), and hence could be useful for clinical applications, as well as furthering our understanding of cell/extracellular matrix interactions in determining in vitro bone tissue formation.
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Affiliation(s)
- Joshua C Price
- Institute for Science and Technology in Medicine, Guy Hilton Research Centre, Keele University, Stoke-on-Trent, United Kingdom
- Optics and Photonics Research Group, Faculty of Engineering, The University of Nottingham, Nottingham, United Kingdom
| | - Andrew L Krause
- Mathematical Institute, University of Oxford, Oxford, United Kingdom
| | - Sarah L Waters
- Mathematical Institute, University of Oxford, Oxford, United Kingdom
| | - Alicia J El Haj
- Institute for Science and Technology in Medicine, Guy Hilton Research Centre, Keele University, Stoke-on-Trent, United Kingdom
- Healthcare Technology Institute, Institute of Translational Medicine, University of Birmingham, Birmingham, United Kingdom
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Mesenchymal Stem/Progenitor Cells: The Prospect of Human Clinical Translation. Stem Cells Int 2020; 2020:8837654. [PMID: 33953753 PMCID: PMC8063852 DOI: 10.1155/2020/8837654] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/19/2020] [Accepted: 07/20/2020] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal stem/progenitor cells (MSCs) are key players in regenerative medicine, relying principally on their differentiation/regeneration potential, immunomodulatory properties, paracrine effects, and potent homing ability with minimal if any ethical concerns. Even though multiple preclinical and clinical studies have demonstrated remarkable properties for MSCs, the clinical applicability of MSC-based therapies is still questionable. Several challenges exist that critically hinder a successful clinical translation of MSC-based therapies, including but not limited to heterogeneity of their populations, variability in their quality and quantity, donor-related factors, discrepancies in protocols for isolation, in vitro expansion and premodification, and variability in methods of cell delivery, dosing, and cell homing. Alterations of MSC viability, proliferation, properties, and/or function are also affected by various drugs and chemicals. Moreover, significant safety concerns exist due to possible teratogenic/neoplastic potential and transmission of infectious diseases. Through the current review, we aim to highlight the major challenges facing MSCs' human clinical translation and shed light on the undergoing strategies to overcome them.
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29
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Kim SA, Sur YJ, Cho ML, Go EJ, Kim YH, Shetty AA, Kim SJ. Atelocollagen promotes chondrogenic differentiation of human adipose-derived mesenchymal stem cells. Sci Rep 2020; 10:10678. [PMID: 32606308 PMCID: PMC7327030 DOI: 10.1038/s41598-020-67836-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 06/16/2020] [Indexed: 12/19/2022] Open
Abstract
Effective engineering approaches for cartilage regeneration involve a combination of cells and biomaterial scaffolds. Multipotent mesenchymal stem cells (MSCs) are important sources for cartilage regeneration. Atelocollagen provides a suitable substrate for MSC attachment and enhancing chondrogenic differentiation. Here, we assessed the chondrogenic potential of adipose tissue derived human MSCs (hMSCs) mixed with atelocollagen gel. We observed cell attachment, viability, and microstructures by electron microscopy over 21 days. The levels of Sox9, type II collagen, aggrecan, type I collagen, Runx2, type X collagen, ALP, Osterix, and MMP13 were measured by RT-qPCR. Cartilage matrix-related proteins were assessed by enzyme-linked immunosorbent assay (ELISA), histology, and immunohistochemistry. hMSCs of all groups exhibited well-maintained cell survival, distribution and morphology. Abundant type II collagen fibers developed on day 21; while Sox9, type II collagen, and aggrecan expression increased over time in the atelocollagen group. However, type I collagen, RUNX2, type X collagen (CoL10A1), Osterix, and ALP were not expressed. These results corroborated the protein expression detected by ELISA. Further, histological analysis revealed lacunae-like structures, while staining demonstrated glycosaminoglycan accumulation. Cumulatively, these results indicate that atelocollagen scaffolds improve hMSC chondrogenic differentiation and are a potential approach for cartilage regeneration.
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Affiliation(s)
- Seon Ae Kim
- Department of Orthopedic Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yoo Joon Sur
- Department of Orthopedic Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Mi-La Cho
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Eun Jeong Go
- Department of Orthopedic Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yun Hwan Kim
- Department of Orthopedic Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Asode Ananthram Shetty
- The Institute of Medical Sciences, Faculty of Health and Wellbeing, Canterbury Christ Church University, Kent, UK
| | - Seok Jung Kim
- Department of Orthopedic Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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30
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Wang Y, Xiao Y, Long S, Fan Y, Zhang X. Role of N-Cadherin in a Niche-Mimicking Microenvironment for Chondrogenesis of Mesenchymal Stem Cells In Vitro. ACS Biomater Sci Eng 2020; 6:3491-3501. [PMID: 33463167 DOI: 10.1021/acsbiomaterials.0c00149] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
During the development of natural cartilage, mesenchymal condensation is the starting event of chondrogenesis, and mesenchymal stem cells (MSCs) experienced a microenvironment transition from primarily cell-cell interactions to a later stage, where cell-extracellular matrix (ECM) interactions dominate. Although micromass pellet culture has been developed to mimic mesenchymal condensation in vitro, the molecular mechanism remains elusive, and the transition from cell-cell to cell-ECM interactions has been poorly recapitulated. In this study, we first constructed MSC microspheres (MMs) and investigated their chondrogenic differentiation with functional blocking of N-cadherin. The results showed that early cartilage differentiation and cartilage-specific matrix deposition of MSCs in the group with the N-cadherin antibody were significantly postponed. Next, poly(l-lysine) treatment was transiently applied to promote the expression of N-cadherin gene, CDH2, and the treatment-promoted MSC chondrogenesis. Upon one-day culture in MMs with established cell-cell adhesions, collagen hydrogel-encapsulated MMs (CMMs) were constructed to simulate the cell-ECM interactions, and the collagen microenvironment compensated the inhibitory effects from N-cadherin blocking. Surprisingly, chondrogenic-differentiated cell migration, which has important implications in cartilage repair and integration, was found in the CMMs without N-cadherin blocking. In conclusion, our study demonstrated that N-cadherin plays the critical role in early mesenchymal condensation, and the collagen hydrogel provides a supportive microenvironment for late chondrogenic differentiation. Therefore, sequential presentations of cell-cell adhesion and cell-ECM interaction in an engineered microenvironment seem to be a promising strategy to facilitate MSC chondrogenic differentiation.
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Affiliation(s)
- Yonghui Wang
- Guangxi Collaborative Innovation Center for Biomedicine, Guangxi Medical University, Nanning 530021, China
| | - Yun Xiao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Shihe Long
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Xingdong Zhang
- Guangxi Collaborative Innovation Center for Biomedicine, Guangxi Medical University, Nanning 530021, China.,National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
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31
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Lee J, Jeon O, Kong M, Abdeen AA, Shin JY, Lee HN, Lee YB, Sun W, Bandaru P, Alt DS, Lee K, Kim HJ, Lee SJ, Chaterji S, Shin SR, Alsberg E, Khademhosseini A. Combinatorial screening of biochemical and physical signals for phenotypic regulation of stem cell-based cartilage tissue engineering. SCIENCE ADVANCES 2020; 6:eaaz5913. [PMID: 32494742 PMCID: PMC7244269 DOI: 10.1126/sciadv.aaz5913] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Accepted: 03/17/2020] [Indexed: 05/03/2023]
Abstract
Despite great progress in biomaterial design strategies for replacing damaged articular cartilage, prevention of stem cell-derived chondrocyte hypertrophy and resulting inferior tissue formation is still a critical challenge. Here, by using engineered biomaterials and a high-throughput system for screening of combinatorial cues in cartilage microenvironments, we demonstrate that biomaterial cross-linking density that regulates matrix degradation and stiffness-together with defined presentation of growth factors, mechanical stimulation, and arginine-glycine-aspartic acid (RGD) peptides-can guide human mesenchymal stem cell (hMSC) differentiation into articular or hypertrophic cartilage phenotypes. Faster-degrading, soft matrices promoted articular cartilage tissue formation of hMSCs by inducing their proliferation and maturation, while slower-degrading, stiff matrices promoted cells to differentiate into hypertrophic chondrocytes through Yes-associated protein (YAP)-dependent mechanotransduction. in vitro and in vivo chondrogenesis studies also suggest that down-regulation of the Wingless and INT-1 (WNT) signaling pathway is required for better quality articular cartilage-like tissue production.
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Affiliation(s)
- Junmin Lee
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Oju Jeon
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
- Department of Bioengineering, University of Illinois-Chicago, Chicago, IL 60607, USA
| | - Ming Kong
- College of Marine Life Science, Ocean University of China, Yushan Road, Qingdao, Shandong Province 266003, China
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Amr A. Abdeen
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Jung-Youn Shin
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Ha Neul Lee
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yu Bin Lee
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
- Department of Bioengineering, University of Illinois-Chicago, Chicago, IL 60607, USA
| | - Wujin Sun
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Praveen Bandaru
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Daniel S. Alt
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
- Department of Bioengineering, University of Illinois-Chicago, Chicago, IL 60607, USA
| | - KangJu Lee
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Han-Jun Kim
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Sang Jin Lee
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
- Department of Bioengineering, University of Illinois-Chicago, Chicago, IL 60607, USA
| | - Somali Chaterji
- Agricultural and Biological Engineering, Purdue University, West Lafayette, IN 47907, USA
- Center for Resilient Infrastructures, Systems, and Processes (CRISP), Purdue University, West Lafayette, IN 47907, USA
| | - Su Ryon Shin
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Eben Alsberg
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
- Department of Bioengineering, University of Illinois-Chicago, Chicago, IL 60607, USA
- Department of Orthopaedics, University of Illinois-Chicago, Chicago, IL 60612, USA
- Department of Orthopaedic Surgery, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
- National Center for Regenerative Medicine, Division of General Medical Sciences, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
- School of Dentistry, Kyung Hee University, Seoul 130-701, South Korea
- Department of Pharmacology, University of Illinois-Chicago, Chicago, IL 60612, USA
- Department of Mechanical and Industrial Engineering, University of Illinois-Chicago, Chicago, IL 60607, USA
| | - Ali Khademhosseini
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Terasaki Institute for Biomedical Innovation Los Angeles, CA 90064, USA
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Dispersion of ceramic granules within human fractionated adipose tissue to enhance endochondral bone formation. Acta Biomater 2020; 102:458-467. [PMID: 31783141 DOI: 10.1016/j.actbio.2019.11.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 11/19/2019] [Accepted: 11/23/2019] [Indexed: 12/13/2022]
Abstract
Engineering of materials consisting of hypertrophic cartilage, as physiological template for de novo bone formation through endochondral ossification (ECO), holds promise as a new class of biological bone substitutes. Here, we assessed the efficiency and reproducibility of bone formation induced by the combination of ceramic granules with fractionated human adipose tissue ("nanofat"), followed by in vitro priming to hypertrophic cartilage. Human nanofat was mixed with different volumetric ratios of ceramic granules (0.2-1 mm) and cultured to sequentially induce proliferation (3 weeks), chondrogenesis (4 weeks), and hypertrophy (2 weeks). The resulting engineered constructs were implanted ectopically in nude mouse. The presence of ceramic granules regulated tissue formation, both in vitro and in vivo. In particular, their dispersion in nanofat at a ratio of 1:16 led to significantly increased cell number and glycosaminoglycan accumulation in vitro, as well as amount and inter-donor reproducibility of bone formation in vivo. Our findings outline a strategy for efficient utilization of nanofat for bone regeneration in an autologous setting, which should now be tested at an orthotopic site. STATEMENT OF SIGNIFICANCE: In this study, we assessed the efficiency and reproducibility of bone formation by a combination of ceramic granules and fractionated human adipose tissue, also known as nanofat, in vitro primed into hypertrophic cartilage. The resulting engineered cartilaginous constructs, when implanted ectopically in nude mouse, resulted in bone and bone marrow formation, more reproducibly and strongly that nanofat alone. This project evaluates the impact of ceramic granules on the functionality and chondrogenic differentiation of mesenchymal progenitors inside their native adipose tissue niche and outlines a novel strategy for an efficient application of nanofat for bone regeneration in an autologous setting.
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33
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Gohi BFCA, Liu XY, Zeng HY, Xu S, Ake KMH, Cao XJ, Zou KM, Namulondo S. Enhanced efficiency in isolation and expansion of hAMSCs via dual enzyme digestion and micro-carrier. Cell Biosci 2020; 10:2. [PMID: 31921407 PMCID: PMC6945441 DOI: 10.1186/s13578-019-0367-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 12/16/2019] [Indexed: 01/08/2023] Open
Abstract
A two-stage method of obtaining viable human amniotic stem cells (hAMSCs) in large-scale is described. First, human amniotic stem cells are isolated via dual enzyme (collagenase II and DNAase I) digestion. Next, relying on a culture of the cells from porous chitosan-based microspheres in vitro, high purity hAMSCs are obtained in large-scale. Dual enzymatic (collagenase II and DNase I) digestion provides a primary cell culture and first subculture with a lower contamination rate, higher purity and a larger number of isolated cells. The obtained hAMSCs were seeded onto chitosan microspheres (CM), gelatin-chitosan microspheres (GCM) and collagen-chitosan microspheres (CCM) to produce large numbers of hAMSCs for clinical trials. Growth activity measurement and differentiation essays of hAMSCs were realized. Within 2 weeks of culturing, GCMs achieved over 1.28 ± 0.06 × 107 hAMSCs whereas CCMs and CMs achieved 7.86 ± 0.11 × 106 and 1.98 ± 0.86 × 106 respectively within this time. In conclusion, hAMSCs showed excellent attachment and viability on GCM-chitosan microspheres, matching the hAMSCs' normal culture medium. Therefore, dual enzyme (collagenase II and DNAase I) digestion may be a more useful isolation process and culture of hAMSCs on porous GCM in vitro as an ideal environment for the large-scale expansion of highly functional hAMSCs for eventual use in stem cell-based therapy.
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Affiliation(s)
- Bi Foua Claude Alain Gohi
- Biology and Chemical Engineering School, Panzhihua University, Panzhihua, 617000 Sichuan People’s Republic of China
- Biotechnology Institute, College of Chemical Engineering, Xiangtan University, Xiangtan, 411105 Hunan People’s Republic of China
| | - Xue-Ying Liu
- Economical Forest Cultivation and Utilization of 2011 Collaborative Innovation Center in Hunan Province, Hunan Key Laboratory of Green, Zhuzhou, China
- Packaging and Application of Biological Nanotechnology, Hunan University of Technology, Zhuzhou, 412007 Hunan China
| | - Hong-Yan Zeng
- Biotechnology Institute, College of Chemical Engineering, Xiangtan University, Xiangtan, 411105 Hunan People’s Republic of China
| | - Sheng Xu
- Biotechnology Institute, College of Chemical Engineering, Xiangtan University, Xiangtan, 411105 Hunan People’s Republic of China
| | - Kouassi Marius Honore Ake
- Faculty of Business Administration, Laval University, Pavillon Palasis-Prince, 2325 Rue de la Terrasse, G1V 0A6 Quebec City, Canada
| | - Xiao-Ju Cao
- Biotechnology Institute, College of Chemical Engineering, Xiangtan University, Xiangtan, 411105 Hunan People’s Republic of China
| | - Kai-Min Zou
- Biotechnology Institute, College of Chemical Engineering, Xiangtan University, Xiangtan, 411105 Hunan People’s Republic of China
| | - Sheila Namulondo
- Institute of Comparative Literature and World Literature, College of Literature and Journalism, Xiangtan University, Xiangtan, 411105 Hunan People’s Republic of China
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Li YY, Lam KL, Chen AD, Zhang W, Chan BP. Collagen microencapsulation recapitulates mesenchymal condensation and potentiates chondrogenesis of human mesenchymal stem cells – A matrix-driven in vitro model of early skeletogenesis. Biomaterials 2019; 213:119210. [DOI: 10.1016/j.biomaterials.2019.05.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 04/28/2019] [Accepted: 05/10/2019] [Indexed: 01/01/2023]
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Hayes AJ, Melrose J. Glycosaminoglycan and Proteoglycan Biotherapeutics in Articular Cartilage Protection and Repair Strategies: Novel Approaches to Visco‐supplementation in Orthobiologics. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201900034] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Anthony J. Hayes
- Bioimaging Research HubCardiff School of BiosciencesCardiff University Cardiff CF10 3AX Wales UK
| | - James Melrose
- Graduate School of Biomedical EngineeringUNSW Sydney Sydney NSW 2052 Australia
- Raymond Purves Bone and Joint Research LaboratoriesKolling Institute of Medical ResearchRoyal North Shore Hospital and The Faculty of Medicine and HealthUniversity of Sydney St. Leonards NSW 2065 Australia
- Sydney Medical SchoolNorthernRoyal North Shore HospitalSydney University St. Leonards NSW 2065 Australia
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Cipriani F, Ariño Palao B, Gonzalez de Torre I, Vega Castrillo A, Aguado Hernández HJ, Alonso Rodrigo M, Àlvarez Barcia AJ, Sanchez A, García Diaz V, Lopez Peña M, Rodriguez-Cabello JC. An elastin-like recombinamer-based bioactive hydrogel embedded with mesenchymal stromal cells as an injectable scaffold for osteochondral repair. Regen Biomater 2019; 6:335-347. [PMID: 31827887 PMCID: PMC6897338 DOI: 10.1093/rb/rbz023] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 04/17/2019] [Accepted: 04/19/2019] [Indexed: 01/21/2023] Open
Abstract
The aim of this study was to evaluate injectable, in situ cross-linkable elastin-like recombinamers (ELRs) for osteochondral repair. Both the ELR-based hydrogel alone and the ELR-based hydrogel embedded with rabbit mesenchymal stromal cells (rMSCs) were tested for the regeneration of critical subchondral defects in 10 New Zealand rabbits. Thus, cylindrical osteochondral defects were filled with an aqueous solution of ELRs and the animals sacrificed at 4 months for histological and gross evaluation of features of biomaterial performance, including integration, cellular infiltration, surrounding matrix quality and the new matrix in the defects. Although both approaches helped cartilage regeneration, the results suggest that the specific composition of the rMSC-containing hydrogel permitted adequate bone regeneration, whereas the ELR-based hydrogel alone led to an excellent regeneration of hyaline cartilage. In conclusion, the ELR cross-linker solution can be easily delivered and forms a stable well-integrated hydrogel that supports infiltration and de novo matrix synthesis.
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Affiliation(s)
- Filippo Cipriani
- Technical Proteins Nanobiotechnology S.L., Paseo Belén 9A, Valladolid 47011, Spain
| | - Blanca Ariño Palao
- Departamento de traumatología, Hospital Clínico de Valladolid, Av. Ramón y Cajal 3, Valladolid 47003, Spain
| | - Israel Gonzalez de Torre
- Technical Proteins Nanobiotechnology S.L., Paseo Belén 9A, Valladolid 47011, Spain.,Bioforge, University of Valladolid CIBER-BBN, Paseo de Belén 19, Valladolid 47011, Spain
| | - Aurelio Vega Castrillo
- Departamento de traumatología, Hospital Clínico de Valladolid, Av. Ramón y Cajal 3, Valladolid 47003, Spain
| | | | - Matilde Alonso Rodrigo
- Technical Proteins Nanobiotechnology S.L., Paseo Belén 9A, Valladolid 47011, Spain.,Bioforge, University of Valladolid CIBER-BBN, Paseo de Belén 19, Valladolid 47011, Spain
| | - Angel José Àlvarez Barcia
- SIBA-UVA: servicio investigación y bienestar animal, University of Valladolid, C/Plaza de Santa Cruz 8, Valladolid 47002, Spain
| | - Ana Sanchez
- Instituto de Biología y Genética Molecular (IBGM), Universidad de Valladolid y CSIC, Calle Sanz y Fores 3, Valladolid 47003, Spain
| | - Verónica García Diaz
- Instituto de Biología y Genética Molecular (IBGM), Universidad de Valladolid y CSIC, Calle Sanz y Fores 3, Valladolid 47003, Spain
| | - Monica Lopez Peña
- Facultad de veterinaria, Campus Universitario, Avda. Carballo Calero s/n, Lugo 27002, Spain
| | - José Carlos Rodriguez-Cabello
- Technical Proteins Nanobiotechnology S.L., Paseo Belén 9A, Valladolid 47011, Spain.,Bioforge, University of Valladolid CIBER-BBN, Paseo de Belén 19, Valladolid 47011, Spain
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Das P, Singh YP, Joardar SN, Biswas BK, Bhattacharya R, Nandi SK, Mandal BB. Decellularized Caprine Conchal Cartilage toward Repair and Regeneration of Damaged Cartilage. ACS APPLIED BIO MATERIALS 2019; 2:2037-2049. [PMID: 35030692 DOI: 10.1021/acsabm.9b00078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Piyali Das
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal and Fishery Sciences, Kolkata 700037, West Bengal, India
| | - Yogendra Pratap Singh
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Siddhartha Narayan Joardar
- Department of Microbiology, West Bengal University of Animal and Fishery Sciences, Kolkata 700037, West Bengal, India
| | - Bikash Kanti Biswas
- Directorate of Research, Extension and Farms, West Bengal University of Animal and Fishery Sciences, Kolkata 700037, West Bengal, India
| | - Rupnarayan Bhattacharya
- Department of Plastic Surgery, R. G. Kar Medical College & Hospital, Kolkata 700004, West Bengal, India
| | - Samit Kumar Nandi
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal and Fishery Sciences, Kolkata 700037, West Bengal, India
| | - Biman B. Mandal
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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Injectable and self-crosslinkable hydrogels based on collagen type II and activated chondroitin sulfate for cell delivery. Int J Biol Macromol 2018; 118:2014-2020. [DOI: 10.1016/j.ijbiomac.2018.07.079] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/29/2018] [Accepted: 07/12/2018] [Indexed: 11/24/2022]
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Comparative efficacy of stem cells and secretome in articular cartilage regeneration: a systematic review and meta-analysis. Cell Tissue Res 2018; 375:329-344. [PMID: 30084022 DOI: 10.1007/s00441-018-2884-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 07/04/2018] [Indexed: 12/17/2022]
Abstract
Articular cartilage defect remains the most challenging joint disease due to limited intrinsic healing capacity of the cartilage that most often progresses to osteoarthritis. In recent years, stem cell therapy has evolved as therapeutic strategies for articular cartilage regeneration. However, a number of studies have shown that therapeutic efficacy of stem cell transplantation is attributed to multiple secreted factors that modulate the surrounding milieu to evoke reparative processes. This systematic review and meta-analysis aim to evaluate and compare the therapeutic efficacy of stem cell and secretome in articular cartilage regeneration in animal models. We systematically searched the PubMed, CINAHL, Cochrane Library, Ovid Medline and Scopus databases until August 2017 using search terms related to stem cells, cartilage regeneration and animals. A random effect meta-analysis of the included studies was performed to assess the treatment effects on new cartilage formation on an absolute score of 0-100% scale. Subgroup analyses were also performed by sorting studies independently based on similar characteristics. The pooled analysis of 59 studies that utilized stem cells significantly improved new cartilage formation by 25.99% as compared with control. Similarly, the secretome also significantly increased cartilage regeneration by 26.08% in comparison to the control. Subgroup analyses revealed no significant difference in the effect of stem cells in new cartilage formation. However, there was a significant decline in the effect of stem cells in articular cartilage regeneration during long-term follow-up, suggesting that the duration of follow-up is a predictor of new cartilage formation. Secretome has shown a similar effect to stem cells in new cartilage formation. The risk of bias assessment showed poor reporting for most studies thereby limiting the actual risk of bias assessment. The present study suggests that both stem cells and secretome interventions improve cartilage regeneration in animal trials. Graphical abstract ᅟ.
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Ghidini T. Regenerative medicine and 3D bioprinting for human space exploration and planet colonisation. J Thorac Dis 2018; 10:S2363-S2375. [PMID: 30123576 DOI: 10.21037/jtd.2018.03.19] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
3D printing also known as additive manufacturing (AM) is seen as one of the key enabling technologies for a large number of high-end industrial sectors including the automotive, aerospace and medical industry. Recent advances and breakthroughs in the last years have enabled 3D printing of biocompatible materials, cells and supporting components into complex 3D functional living tissues. 3D bioprinting is being applied to regenerative medicine, addressing the need for tissues and organs suitable for transplantation. Bioprinting implies additional complexities related to the sensitivities of living cells such as printing parameters and conditions, material selection, cell types etc. Despite these challenges, beating artificial heart cells, cartilage implants, skin repairs, functional kidney tissues have been printed successfully on Earth. The present paper addresses the possibility of performing regenerative medicine in space, which may guarantee sustainable life support on long term/long distance planetary exploration missions, opening to stable planet colonisation.
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Affiliation(s)
- Tommaso Ghidini
- European Space Agency, ESA-ESTEC, Noordwijk, The Netherlands
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41
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Huang N, Li CW, Chan BP. Multiphoton 3D Microprinting of Protein Micropatterns with Spatially Controlled Heterogeneity - A Platform for Single Cell Matrix Niche Studies. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/adbi.201800053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nan Huang
- Tissue Engineering Laboratory; Department of Mechanical Engineering; The University of Hong Kong; Pokfulam Road Hong Kong Special Administrative Region China
| | - Chuen Wai Li
- Tissue Engineering Laboratory; Department of Mechanical Engineering; The University of Hong Kong; Pokfulam Road Hong Kong Special Administrative Region China
| | - Barbara Pui Chan
- Tissue Engineering Laboratory; Department of Mechanical Engineering; The University of Hong Kong; Pokfulam Road Hong Kong Special Administrative Region China
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Nanofibrous Nerve Conduits with Pre-seeded Bone Marrow Stromal Cells and Cultured by Bioreactor for Enhancing Peripheral Nerve Regeneration. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2018. [DOI: 10.1007/s40883-018-0057-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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43
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Li B, Gao Y, Guo L, Fan Y, Kawazoe N, Fan H, Zhang X, Chen G. Synthesis of photo-reactive poly (vinyl alcohol) and construction of scaffold-free cartilage like pellets in vitro. Regen Biomater 2018; 5:159-166. [PMID: 29942648 PMCID: PMC6007571 DOI: 10.1093/rb/rby009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 04/04/2018] [Accepted: 04/11/2018] [Indexed: 12/24/2022] Open
Abstract
Photo-reactive poly(vinyl alcohol) (PRPVA) was synthesized by introduction of phenyl azido groups into poly(vinyl alcohol) (PVA) and applied for surface modification. PRPVA was grafted onto cell culture plate surface homogeneously or in a micropattern. Human mesenchymal stem cells (hMSCs) cultured on cell culture plate surface and PVA-modified surface showed different behaviors. Cells adhered and spread well on cell culture plate surface, while they did not adhere on PVA-grafted surface at all. When hMSCs were cultured on PVA-micropatterned surface, they formed a cell micropattern. Cells formed pellets after cultured on PVA homogeneously modified surface in chondrogenic induction medium for 2 weeks. The pellets were positively stained by hematoxylin/eosin, safranin-O/fast green and toluidin blue, and they were also stained brown by Type II collagen and proteoglycan immunohistological staining. Real-time PCR analysis was conducted to investigate the expression of colI, colII, colX, aggrecan and sox9 mRNA. Results of gene expression were in agreement with those of histological and immunohistological observations. These results indicated that hMSCs cultured on PVA-modified surface performed chondrogenic differentiation, and it was possible to construct scaffold-free cartilage like pellets with PVA-modified surface in vitro.
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Affiliation(s)
- Bao Li
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Yongli Gao
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Likun Guo
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China.,Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Naoki Kawazoe
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Hongsong Fan
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Guoping Chen
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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Koch L, Deiwick A, Franke A, Schwanke K, Haverich A, Zweigerdt R, Chichkov B. Laser bioprinting of human induced pluripotent stem cells—the effect of printing and biomaterials on cell survival, pluripotency, and differentiation. Biofabrication 2018; 10:035005. [DOI: 10.1088/1758-5090/aab981] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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45
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Fabrication of nanofibrous microcarriers mimicking extracellular matrix for functional microtissue formation and cartilage regeneration. Biomaterials 2018; 171:118-132. [PMID: 29684676 DOI: 10.1016/j.biomaterials.2018.04.033] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 04/13/2018] [Accepted: 04/14/2018] [Indexed: 01/08/2023]
Abstract
Cartilage has rather limited capacities for self-repair and regeneration. To repair complexly shaped cartilage tissue defects, we propose the application of microtissues fabricated from bone marrow-derived mesenchymal stem cells (BMSCs) cultured in natural bionic nanofibrous microcarriers (NF-MCs). The NF-MCs were structurally and functionally designed to mimic natural extracellular matrix (ECM) by crosslinking dialdehyde bacterial cellulose (DBC) with DL-allo-hydroxylysine (DHYL) and complexing chitosan (CS) with DHYL through electrostatic interactions. The orthogonal design allows for fine tuning of fiber diameter, pore size, porosity, mechanical properties, and biodegradation rate of the NF-MC. BMSCs cultured in NF-MCs showed improved proliferation compared with those cultured in chitosan microcarriers (CS-MCs). After three-week culture under microgravity conditions, functional cartilage microtissues were generated. When implanted into a knee articular cartilage defect in mice, the microtissue showed superior in vivo cartilage repair as characterized by cell tracking, histology, micro CT image, and gait analysis. Versatile in natural biopolymer design and biomimetic in nanofibrous component embedded in macroporous microcarriers, these injectable NC-MCs demonstrate to be effective carriers for cell proliferation and differentiation. Furthermore, the functional microtissues also show their prospect in repair of cartilage tissue, and suggest their potential for other tissues in general.
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46
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Cotter EJ, Wang KC, Yanke AB, Chubinskaya S. Bone Marrow Aspirate Concentrate for Cartilage Defects of the Knee: From Bench to Bedside Evidence. Cartilage 2018; 9:161-170. [PMID: 29126349 PMCID: PMC5871125 DOI: 10.1177/1947603517741169] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objective To critically evaluate the current basic science, translational, and clinical data regarding bone marrow aspirate concentrate (BMAC) in the setting of focal cartilage defects of the knee and describe clinical indications and future research questions surrounding the clinical utility of BMAC for treatment of these lesions. Design A literature search was performed using the PubMed and Ovid MEDLINE databases for studies in English (1980-2017) using keywords, including ["bone marrow aspirate" and "cartilage"], ["mesenchymal stem cells" and "cartilage"], and ["bone marrow aspirate" and "mesenchymal stem cells" and "orthopedics"]. A total of 1832 articles were reviewed by 2 independent authors and additional literature found through scanning references of cited articles. Results BMAC has demonstrated promising results in the clinical application for repair of chondral defects as an adjuvant procedure or as an independent management technique. A subcomponent of BMAC, bone marrow derived-mesenchymal stem cells (MSCs) possess the ability to differentiate into cells important for osteogenesis and chondrogenesis. Modulation of paracrine signaling is perhaps the most important function of BM-MSCs in this setting. In an effort to increase the cellular yield, authors have shown the ability to expand BM-MSCs in culture while maintaining phenotype. Conclusions Translational studies have demonstrated good clinical efficacy of BMAC both concomitant with cartilage restoration procedures, at defined time points after surgery, and as isolated injections. Early clinical data suggests BMAC may help stimulate a more robust hyaline cartilage repair tissue response. Numerous questions remain regarding BMAC usage, including cell source, cell expansion, optimal pathology, and injection timing and quantity.
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Affiliation(s)
- Eric J. Cotter
- Georgetown University School of Medicine, Washington, DC, USA
| | - Kevin C. Wang
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Adam B. Yanke
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Susan Chubinskaya
- Department of Pediatrics, Rush University Medical Center, Chicago, IL, USA
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Naqvi SM, Gansau J, Buckley CT. Priming and cryopreservation of microencapsulated marrow stromal cells as a strategy for intervertebral disc regeneration. ACTA ACUST UNITED AC 2018; 13:034106. [PMID: 29380742 DOI: 10.1088/1748-605x/aaab7f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A challenge in using stromal cells for intervertebral disc (IVD) regeneration is their limited differentiation capacity in vivo without exogenous growth factor (GF) supplementation. Priming of stromal cells prior to transplantation may offer a feasible strategy to overcome this limitation. Furthermore, the ability to cryopreserve cells could help alleviate logistical issues associated with storage and transport. With these critical translational challenges in mind, we aimed to develop a strategy involving priming and subsequent cryopreservation of microencapsulated bone marrow stromal cells (BMSCs). In phase one, we utilised the electrohydrodynamic atomisation process to fabricate BMSC-encapsulated microcapsules that were primed with TGF-β3 for 14 d after which they were cultured for a further 21 d under basal or GF supplemented media conditions. Results showed that priming induced differentiation of BMSC microcapsules such that they synthesised significant amounts of sGAG (61.9 ± 2.0 μg and 55.3 ± 6.1 μg for low and high cell densities) and collagen (24.4 ± 1.9 μg and 55.3 ± 4.6 μg for low and high cell densities) in continued culture without GF supplementation compared to Unprimed microcapsules. Phase two of this work assessed the extracellular matrix forming capacity of Primed BMSC microcapsules over 21 d after cryopreservation. Notably, primed and cryopreserved BMSCs successfully retained the ability to synthesise both sGAG (24.8 ± 2.7 μg and 75.1 ± 11.6 μg for low and high cell densities) and collagen (26.4 ± 7.8 μg and 93.1 ± 10.2 μg for low and high cell densities) post-cryopreservation. These findings demonstrate the significant potential of priming and cryopreservation approaches for IVD repair and could possibly open new horizons for pre-designed, 'off-the-shelf' injectable therapeutics.
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Affiliation(s)
- Syeda M Naqvi
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland. School of Engineering, Trinity College Dublin, Ireland
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Xue J, He A, Zhu Y, Liu Y, Li D, Yin Z, Zhang W, Liu W, Cao Y, Zhou G. Repair of articular cartilage defects with acellular cartilage sheets in a swine model. ACTA ACUST UNITED AC 2018; 13:025016. [PMID: 29125133 DOI: 10.1088/1748-605x/aa99a4] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Acellular cartilage sheets (ACSs) have been demonstrated as a good biomaterial for cartilage regeneration as a result of their natural cartilage matrix components, cartilage-specific structures, and good biocompatibility. However, it remains unknown whether allogeneic ACSs could promote cartilage regeneration and repair cartilage defects in a large animal model. The current study explored the feasibility of repairing articular cartilage defects using ACS scaffold with or without autologous bone marrow stromal cells (BMSCs) in a swine model. According to the current results, ACSs retained natural cartilage structure, primary cartilage matrices, and cartilage-specific growth factors. After cell seeding, ACSs presented good biocompatibility with BMSCs, which produced abundant extracellular matrix (ECM) proteins to cover the lacuna structures. In vivo results indicated that ACSs alone could induce endogenous host cells to regenerate cartilage and achieve generally satisfactory repair of cartilage defects at 6 months post-operation, including good interface integration and cartilage-specific ECM deposition. After combination with autologous BMSCs, BMSC-ACS constructs achieved more satisfactory repair of cartilage defects even without in vitro pre-induction of chondrogenesis. More importantly, all defects in both BMSC-ACS and ACS-only groups showed enhanced cartilage regeneration compared with BMSC-polyglycolic acid and blank groups, which mainly exhibited fibrogenesis in defect areas. Collectively, the current results indicate that ACSs can efficiently repair articular cartilage defects by promoting chondrogenic differentiation of BMSCs or inducing endogenous chondrogenesis in situ, thus serving as a good cartilage regeneration scaffold for recovery of articular function.
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Affiliation(s)
- Jixin Xue
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, Shanghai, People's Republic of China. Department of Hand and Plastic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
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Proteomic Analysis of Nucleus Pulposus Cell-derived Extracellular Matrix Niche and Its Effect on Phenotypic Alteration of Dermal Fibroblasts. Sci Rep 2018; 8:1512. [PMID: 29367647 PMCID: PMC5784136 DOI: 10.1038/s41598-018-19931-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 01/10/2018] [Indexed: 01/01/2023] Open
Abstract
Reconstituting biomimetic matrix niche in vitro and culturing cells at the cell niche interface is necessary to understand the effect and function of the specific matrix niche. Here we attempted to reconstitute a biomimetic extracellular matrix (ECM) niche by culturing nucleus pulposus cells (NPCs) in a collagen microsphere system previously established and allowing them to remodel the template matrix. The reconstituted NPC-derived complex ECM was obtained after decellularization and the composition of such niche was evaluated by proteomic analysis. Results showed that a complex acellular matrix niche consisting of ECM proteins and cytoskeletal proteins by comparing with the template collagen matrix starting material. In order to study the significance of the NPC-derived matrix niche, dermal fibroblasts were repopulated in such niche and the phenotypes of these cells were changed, gene expression of collagen type II and CA12 increased significantly. A biomimetic NPC-derived cell niche consisting of complex ECM can be reconstituted in vitro, and repopulating such matrix niche with fibroblasts resulted in changes in phenotypic markers. This work reports a 3D in vitro model to study cell niche factors, contributing to future understanding of cellular interactions at the cell-niche interface and rationalized scaffold design for tissue engineering.
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50
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Souza FGD, Fernandes BL, Rebelatto CLK, Aguiar AMD, Fracaro L, Brofman PRS. Proliferation and differentiation of stem cells in contact with eluate from fibrin-rich plasma membrane. Rev Bras Ortop 2018; 53:45-52. [PMID: 29367906 PMCID: PMC5771793 DOI: 10.1016/j.rboe.2017.12.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 10/28/2016] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE To evaluate the ability of the eluate from fibrin-rich plasma (FRP) membrane to induce proliferation and differentiation of isolated human adipose-derived stem cells (ASCs) into chondrocytes. METHOD FRP membranes were obtained by centrifugation of peripheral blood from two healthy donors, cut, and maintained in culture plate wells for 48 h to prepare the fibrin eluate. The SCATh were isolated from adipose tissue by collagenase digestion solution, and expanded in vitro. Cells were expanded and treated with DMEM-F12 culture, a commercial media for chondrogenic differentiation, and eluate from FRP membrane for three days, and labeled with BrdU for quantitative assessment of cell proliferation using the High-Content Operetta® imaging system. For the chondrogenic differentiation assay, the SCATh were grown in micromass for 21 days and stained with toluidine blue and aggrecan for qualitative evaluation by light microscopy. The statistical analysis was performed using ANOVA and Tukey's test. RESULTS There was a greater proliferation of cells treated with the eluate from FRP membrane compared to the other two treatments, where the ANOVA test showed significance (p < 0.001). The differentiation into chondrocytes was visualized by the presence of mucopolysaccharide in the matrix of the cells marked in blue toluidine and aggrecan. CONCLUSIONS Treatment with eluate from FRP membrane stimulated cell proliferation and induced differentiation of the stem cells into chondrocytes, suggesting a potential application of FRP membranes in hyaline cartilage regeneration therapies.
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Affiliation(s)
| | | | | | | | - Letícia Fracaro
- Pontifícia Universidade Católica do Paraná (PUC-PR), Curitiba, PR, Brazil
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