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Kaboodkhani R, Mehrabani D, Moghaddam A, Salahshoori I, Khonakdar HA. Tissue engineering in otology: a review of achievements. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:1105-1153. [PMID: 38386362 DOI: 10.1080/09205063.2024.2318822] [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: 10/19/2023] [Accepted: 02/09/2024] [Indexed: 02/23/2024]
Abstract
Tissue engineering application in otology spans a distance from the pinna to auditory nerve covered with specialized tissues and functions such as sense of hearing and aesthetics. It holds the potential to address the barriers of lack of donor tissue, poor tissue match, and transplant rejection through provision of new and healthy tissues similar to the host and possesses the capacity to renew, to regenerate, and to repair in-vivo and was shown to be a bypasses for any need to immunosuppression. This review aims to investigate the application of tissue engineering in otology and to evaluate the achievements and challenges in external, middle and inner ear sections. Since gaining the recent knowledge and training on use of different scaffolds is essential for otology specialists and who look for the recovery of ear function and aesthetics of patients, it is shown in this review how utilizing tissue engineering and cell transplantation, regenerative medicine can provide advancements in hearing and ear aesthetics to fit different patients' needs.
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Affiliation(s)
- Reza Kaboodkhani
- Otorhinolaryngology Research Center, Department of Otorhinolaryngology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Fars, Iran
| | - Davood Mehrabani
- Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, Fars, Iran
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Fars, Iran
| | | | | | - Hossein Ali Khonakdar
- Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran
- Max Bergmann Center of Biomaterials and Institute of Materials Science, Technische Universität Dresden, Dresden, Germany
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Omidian H, Chowdhury SD, Wilson RL. Advancements and Challenges in Hydrogel Engineering for Regenerative Medicine. Gels 2024; 10:238. [PMID: 38667657 PMCID: PMC11049258 DOI: 10.3390/gels10040238] [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: 02/22/2024] [Revised: 03/21/2024] [Accepted: 03/28/2024] [Indexed: 04/28/2024] Open
Abstract
This manuscript covers the latest advancements and persisting challenges in the domain of tissue engineering, with a focus on the development and engineering of hydrogel scaffolds. It highlights the critical role of these scaffolds in emulating the native tissue environment, thereby providing a supportive matrix for cell growth, tissue integration, and reducing adverse reactions. Despite significant progress, this manuscript emphasizes the ongoing struggle to achieve an optimal balance between biocompatibility, biodegradability, and mechanical stability, crucial for clinical success. It also explores the integration of cutting-edge technologies like 3D bioprinting and biofabrication in constructing complex tissue structures, alongside innovative materials and techniques aimed at enhancing tissue growth and functionality. Through a detailed examination of these efforts, the manuscript sheds light on the potential of hydrogels in advancing regenerative medicine and the necessity for multidisciplinary collaboration to navigate the challenges ahead.
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Affiliation(s)
- Hossein Omidian
- Barry and Judy Silverman College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA; (S.D.C.); (R.L.W.)
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Selvam A, Majood M, Chaurasia R, Rupesh, Singh A, Dey T, Agrawal O, Verma YK, Mukherjee M. Injectable organo-hydrogels influenced by click chemistry as a paramount stratagem in the conveyor belt of pharmaceutical revolution. J Mater Chem B 2023; 11:10761-10777. [PMID: 37807713 DOI: 10.1039/d3tb01674a] [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: 10/10/2023]
Abstract
The field of injectable hydrogels has demonstrated a paramount headway in the myriad of biomedical applications and paved a path toward clinical advancements. The innate superiority of hydrogels emerging from organic constitution has exhibited dominance in overcoming the bottlenecks associated with inorganic-based hydrogels in the biological milieu. Inorganic hydrogels demonstrate various disadvantages, including limited biocompatibility, degradability, a cumbersome synthesis process, high cost, and ecotoxicity. The excellent biocompatibility, eco-friendliness, and manufacturing convenience of organo-hydrogels have demonstrated to be promising in therapizing biomedical complexities with low toxicity and augmented bioavailability. This report manifests the realization of biomimetic organo-hydrogels with the development of bioresponsive and self-healing injectable organo-hydrogels in the emerging pharmaceutical revolution. Furthermore, the influence of click chemistry in this regime as a backbone in the pharmaceutical conveyor belt has been suggested to scale up production. Moreover, we propose an avant-garde design stratagem of developing a hyaluronic acid (HA)-based injectable organo-hydrogel via click chemistry to be realized for its pharmaceutical edge. Ultimately, injectable organo-hydrogels that materialize from academia or industry are required to follow the standard set of rules established by global governing bodies, which has been delineated to comprehend their marketability. Thence, this perspective narrates the development of injectable organo-hydrogels via click chemistry as a prospective elixir to have in the arsenal of pharmaceuticals.
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Affiliation(s)
- Abhyavartin Selvam
- Amity Institute of Click Chemistry Research and Studies, Amity University Uttar Pradesh, Noida, 201313, India.
- Amity Institute of Nanotechnology, Amity University Uttar Pradesh, Noida, 201313, India
| | - Misba Majood
- Amity Institute of Click Chemistry Research and Studies, Amity University Uttar Pradesh, Noida, 201313, India.
| | - Radhika Chaurasia
- Amity Institute of Click Chemistry Research and Studies, Amity University Uttar Pradesh, Noida, 201313, India.
| | - Rupesh
- Amity Institute of Click Chemistry Research and Studies, Amity University Uttar Pradesh, Noida, 201313, India.
| | - Akanksha Singh
- Amity Institute of Click Chemistry Research and Studies, Amity University Uttar Pradesh, Noida, 201313, India.
| | - Tapan Dey
- Amity Institute of Click Chemistry Research and Studies, Amity University Uttar Pradesh, Noida, 201313, India.
| | - Omnarayan Agrawal
- Amity Institute of Click Chemistry Research and Studies, Amity University Uttar Pradesh, Noida, 201313, India.
| | - Yogesh Kumar Verma
- Stem Cell & Tissue Engineering Research Group, Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organisation, New Delhi, 110054, India
| | - Monalisa Mukherjee
- Amity Institute of Click Chemistry Research and Studies, Amity University Uttar Pradesh, Noida, 201313, India.
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Slyker L, Bonassar LJ. Alginate Conjugation Increases Toughness in Auricular Chondrocyte Seeded Collagen Hydrogels. Bioengineering (Basel) 2023; 10:1037. [PMID: 37760139 PMCID: PMC10526064 DOI: 10.3390/bioengineering10091037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023] Open
Abstract
Current auricular cartilage replacements for pediatric microtia fail to address the need for long-term integration and neocartilage formation. While collagen hydrogels have been successful in fostering neocartilage formation, the toughness and extensibility of these materials do not match that of native tissue. This study used the N-terminal functionalization of collagen with alginate oligomers to improve toughness and extensibility through metal-ion complexation. Alginate conjugation was confirmed via FTIR spectroscopy. The retention of native collagen fibrillar structure, thermal gelation, and helical conformation in functionalized gels was confirmed via scanning electron microscopy, oscillatory shear rheology, and circular dichroism spectroscopy, respectively. Alginate-calcium complexation enabled a more than two-fold increase in modulus and work density in functionalized collagen with the addition of 50 mM CaCl2, whereas unmodified collagen decreased in both modulus and work density with increasing calcium concentration. Additionally, the extensibility of alginate-functionalized collagen was increased at 25 and 50 mM CaCl2. Following 2-week culture with auricular chondrocytes, alginate-functionalization had no effect on the cytocompatibility of collagen gels, with no effects on cell density, and increased glycosaminoglycan deposition. Custom MATLAB video analysis was then used to quantify fracture toughness, which was more than 5-fold higher following culture in functionalized collagen and almost three-fold higher in unmodified collagen.
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Affiliation(s)
- Leigh Slyker
- Meinig of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Lawrence J. Bonassar
- Meinig of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853, USA
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Nicosia A, Salamone M, Costa S, Ragusa MA, Ghersi G. Mimicking Molecular Pathways in the Design of Smart Hydrogels for the Design of Vascularized Engineered Tissues. Int J Mol Sci 2023; 24:12314. [PMID: 37569691 PMCID: PMC10418696 DOI: 10.3390/ijms241512314] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 07/21/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
Biomaterials are pivotal in supporting and guiding vascularization for therapeutic applications. To design effective, bioactive biomaterials, understanding the cellular and molecular processes involved in angiogenesis and vasculogenesis is crucial. Biomaterial platforms can replicate the interactions between cells, the ECM, and the signaling molecules that trigger blood vessel formation. Hydrogels, with their soft and hydrated properties resembling natural tissues, are widely utilized; particularly synthetic hydrogels, known for their bio-inertness and precise control over cell-material interactions, are utilized. Naturally derived and synthetic hydrogel bases are tailored with specific mechanical properties, controlled for biodegradation, and enhanced for cell adhesion, appropriate biochemical signaling, and architectural features that facilitate the assembly and tubulogenesis of vascular cells. This comprehensive review showcases the latest advancements in hydrogel materials and innovative design modifications aimed at effectively guiding and supporting vascularization processes. Furthermore, by leveraging this knowledge, researchers can advance biomaterial design, which will enable precise support and guidance of vascularization processes and ultimately enhance tissue functionality and therapeutic outcomes.
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Affiliation(s)
- Aldo Nicosia
- Institute for Biomedical Research and Innovation-National Research Council (IRIB-CNR), Via Ugo la Malfa 153, 90146 Palermo, Italy;
| | - Monica Salamone
- Institute for Biomedical Research and Innovation-National Research Council (IRIB-CNR), Via Ugo la Malfa 153, 90146 Palermo, Italy;
| | - Salvatore Costa
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; (S.C.); (M.A.R.); (G.G.)
| | - Maria Antonietta Ragusa
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; (S.C.); (M.A.R.); (G.G.)
| | - Giulio Ghersi
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; (S.C.); (M.A.R.); (G.G.)
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Ayran M, Karabulut H, Deniz KI, Akcanli GC, Ulag S, Croitoru AM, Tihăuan BM, Sahin A, Ficai D, Gunduz O, Ficai A. Electrically Triggered Quercetin Release from Polycaprolactone/Bismuth Ferrite Microfibrous Scaffold for Skeletal Muscle Tissue. Pharmaceutics 2023; 15:pharmaceutics15030920. [PMID: 36986781 PMCID: PMC10056538 DOI: 10.3390/pharmaceutics15030920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/27/2023] [Accepted: 03/03/2023] [Indexed: 03/16/2023] Open
Abstract
Skeletal muscle tissue engineering presents a promising avenue to address the limitations pertaining to the regenerative potential of stem cells in case of injury or damage. The objective of this research was to evaluate the effects of utilizing novel microfibrous scaffolds, containing the compound quercetin (Q), on skeletal muscle regeneration. Morphological test results showed us that the combination of bismuth ferrite (BFO), polycaprolactone (PCL), and Q were bonded and well-ordered with each other, and a uniform microfibrous structure was obtained. Antimicrobial susceptibility testing of PCL/BFO/Q was conducted, and microbial reduction was found to be over 90% in the highest concentration of Q-loaded microfibrous scaffolds with the most inhibitory effect on S. aureus strains. Further, biocompatibility was investigated by performing MTT testing, fluorescence testing, and SEM imaging on mesenchymal stem cells (MSCs) to determine whether they could act as suitable microfibrous scaffolds for skeletal muscle tissue engineering. Incremental changes in the concentration of Q led to increased strength and strain, allowing muscles to withstand stretching during the healing process. In addition, electrically conductive microfibrous scaffolds enhanced the drug release capability by revealing that Q can be released significantly more quickly by applying the appropriate electric field, compared with conventional drug-release techniques. These findings suggest a possible use for PCL/BFO/Q microfibrous scaffolds in skeletal muscle regeneration by demonstrating that the combined action of both guidance biomaterials was more successful than Q itself acting alone.
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Affiliation(s)
- Musa Ayran
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
- Institute of Pure and Applied Sciences, Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Hatice Karabulut
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
- Institute of Pure and Applied Sciences, Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Kudret Irem Deniz
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
- Institute of Pure and Applied Sciences, Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Gamze Ceren Akcanli
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
| | - Songul Ulag
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
- Institute of Pure and Applied Sciences, Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Alexa-Maria Croitoru
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Centre for Micro- and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Centre for Food Safety, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Bianca-Maria Tihăuan
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
- Research Institute of the University of Bucharest—ICUB, 050567 Bucharest, Romania
- Research & Development for Advanced Biotechnologies and Medical Devices, SC Sanimed International Impex SRL, 087040 Calugareni, Romania
| | - Ali Sahin
- Department of Biochemistry, Faculty of Medicine, Marmara University, Istanbul 34722, Turkey
| | - Denisa Ficai
- National Centre for Micro- and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Centre for Food Safety, University Politehnica of Bucharest, 060042 Bucharest, Romania
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Oguzhan Gunduz
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
- Institute of Pure and Applied Sciences, Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
- Correspondence:
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Centre for Micro- and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Centre for Food Safety, University Politehnica of Bucharest, 060042 Bucharest, Romania
- Academy of Romanian Scientists, Ilfov St. 3, 050044 Bucharest, Romania
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Himel MH, Sikder B, Ahmed T, Choudhury SM. Biomimicry in nanotechnology: a comprehensive review. NANOSCALE ADVANCES 2023; 5:596-614. [PMID: 36756510 PMCID: PMC9890514 DOI: 10.1039/d2na00571a] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 12/15/2022] [Indexed: 06/18/2023]
Abstract
Biomimicry has been utilized in many branches of science and engineering to develop devices for enhanced and better performance. The application of nanotechnology has made life easier in modern times. It has offered a way to manipulate matter and systems at the atomic level. As a result, the miniaturization of numerous devices has been possible. Of late, the integration of biomimicry with nanotechnology has shown promising results in the fields of medicine, robotics, sensors, photonics, etc. Biomimicry in nanotechnology has provided eco-friendly and green solutions to the energy problem and in textiles. This is a new research area that needs to be explored more thoroughly. This review illustrates the progress and innovations made in the field of nanotechnology with the integration of biomimicry.
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Affiliation(s)
- Mehedi Hasan Himel
- Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology Dhaka 1205 Bangladesh
- Department of Computer Science and Engineering, Brac University 66 Mohakhali Dhaka 1212 Bangladesh
| | - Bejoy Sikder
- Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology Dhaka 1205 Bangladesh
| | - Tanvir Ahmed
- Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology Dhaka 1205 Bangladesh
- Department of Computer Science and Engineering, Brac University 66 Mohakhali Dhaka 1212 Bangladesh
| | - Sajid Muhaimin Choudhury
- Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology Dhaka 1205 Bangladesh
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Guo W, Ma Y, Hu L, Feng Y, Liu Y, Yi X, Zhang W, Tang F. Modification Strategies for Ionic Complementary Self-Assembling Peptides: Taking RADA16-I as an Example. Polymers (Basel) 2022; 14:polym14235221. [PMID: 36501615 PMCID: PMC9739689 DOI: 10.3390/polym14235221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/21/2022] [Accepted: 11/25/2022] [Indexed: 12/04/2022] Open
Abstract
Ion-complementary self-assembling peptides have been studied in many fields for their distinct advantages, mainly due to their self-assembly properties. However, their shortcomings, such as insufficient specific activity and poor mechanical properties, also limited their application. For the better and wider application of these promising biomaterials, ion-complementary self-assembling peptides can be modified with their self-assembly properties not being destroyed to the greatest extent. The modification strategies were reviewed by taking RADA16-I as an example. For insufficient specific activity, RADA16-I can be structurally modified with active motifs derived from the active domain of the extracellular matrix or other related active factors. For weak mechanical properties, materials with strong mechanical properties or that can undergo chemical crosslinking were used to mix with RADA16-I to enhance the mechanical properties of RADA16-I. To improve the performance of RADA16-I as drug carriers, appropriate adjustment of the RADA16-I sequence and/or modification of the RADA16-I-related delivery system with polymer materials or specific molecules can be considered to achieve sustained and controlled release of specific drugs or active factors. The modification strategies reviewed in this paper may provide some references for further basic research and clinical application of ion-complementary self-assembling peptides and their derivatives.
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Affiliation(s)
- Weiwei Guo
- Department of Clinical Pharmacy, Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China
- The Key Laboratory of Clinical Pharmacy of Zuni City, Zunyi Medical University, Zunyi 563006, China
| | - Yinping Ma
- Department of Clinical Pharmacy, Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China
- The Key Laboratory of Clinical Pharmacy of Zuni City, Zunyi Medical University, Zunyi 563006, China
| | - Lei Hu
- Department of Clinical Pharmacy, Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China
- The Key Laboratory of Clinical Pharmacy of Zuni City, Zunyi Medical University, Zunyi 563006, China
| | - Yujie Feng
- Department of Clinical Pharmacy, Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China
- The Key Laboratory of Clinical Pharmacy of Zuni City, Zunyi Medical University, Zunyi 563006, China
| | - Yanmiao Liu
- The Key Laboratory of Clinical Pharmacy of Zuni City, Zunyi Medical University, Zunyi 563006, China
- School of Preclinical Medicine, Zunyi Medical University, Zunyi 563006, China
| | - Xuedong Yi
- Department of Pharmacy, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - Wenzhi Zhang
- Department of Pharmacy, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - Fushan Tang
- Department of Clinical Pharmacy, Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China
- The Key Laboratory of Clinical Pharmacy of Zuni City, Zunyi Medical University, Zunyi 563006, China
- Correspondence: or ; Tel.: +86-851-28642337
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Tribological and Rheological Properties of Poly(vinyl alcohol)-Gellan Gum Composite Hydrogels. Polymers (Basel) 2022; 14:polym14183830. [PMID: 36145975 PMCID: PMC9501534 DOI: 10.3390/polym14183830] [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: 07/10/2022] [Revised: 08/23/2022] [Accepted: 09/08/2022] [Indexed: 12/02/2022] Open
Abstract
Polymeric poly(vinyl alcohol) (PVA)-based composite hydrogels are promising materials with various biomedical applications. However, their mechanical and tribological properties should be tailored for such applications. In this study, we report the fabrication of PVA-gellan gum (GG) composite hydrogels and determine the effect of GG content on their rheological and tribological properties. The rheology tests revealed an enhanced storage (elastic) modulus with increased gellan gum (GG) concentration. The results showed up to 89% enhancement of the elastic modulus of PVA by adding 0.5 wt% gellan gum. This elastic modulus (12.1 ± 0.8 kPa) was very close to that of chondrocyte and its surrounding pericellular matrix (12 ± 1 kPa), rendering them ideal for cartilage regeneration applications. Furthermore, the friction coefficient was reduced by up to 80% by adding GG to PVA, demonstrating the increased elastic modulus improved chance of survival under mechanical shear stresses. Examining PVA/GG at different concentrations of 0.1, 0.3, and 0.5 wt% of GG, we demonstrate that at a load of 5 N, the friction coefficient decreases by increasing the GG concentration. However, at higher loads of 10 and 15 N, a 0.3 wt% concentration was sufficient to significantly reduce the friction coefficient. For PVA and PVA/GG composites, we observed a reduction in friction coefficient by increasing the load from 5 to 15 N. We also found the friction to be independent of the sliding velocity. Possible mechanisms of achieving a reduced friction coefficient are discussed.
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Yang Z, Yi P, Liu Z, Zhang W, Mei L, Feng C, Tu C, Li Z. Stem Cell-Laden Hydrogel-Based 3D Bioprinting for Bone and Cartilage Tissue Engineering. Front Bioeng Biotechnol 2022; 10:865770. [PMID: 35656197 PMCID: PMC9152119 DOI: 10.3389/fbioe.2022.865770] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 04/18/2022] [Indexed: 12/30/2022] Open
Abstract
Tremendous advances in tissue engineering and regenerative medicine have revealed the potential of fabricating biomaterials to solve the dilemma of bone and articular defects by promoting osteochondral and cartilage regeneration. Three-dimensional (3D) bioprinting is an innovative fabrication technology to precisely distribute the cell-laden bioink for the construction of artificial tissues, demonstrating great prospect in bone and joint construction areas. With well controllable printability, biocompatibility, biodegradability, and mechanical properties, hydrogels have been emerging as an attractive 3D bioprinting material, which provides a favorable biomimetic microenvironment for cell adhesion, orientation, migration, proliferation, and differentiation. Stem cell-based therapy has been known as a promising approach in regenerative medicine; however, limitations arise from the uncontrollable proliferation, migration, and differentiation of the stem cells and fortunately could be improved after stem cells were encapsulated in the hydrogel. In this review, our focus was centered on the characterization and application of stem cell-laden hydrogel-based 3D bioprinting for bone and cartilage tissue engineering. We not only highlighted the effect of various kinds of hydrogels, stem cells, inorganic particles, and growth factors on chondrogenesis and osteogenesis but also outlined the relationship between biophysical properties like biocompatibility, biodegradability, osteoinductivity, and the regeneration of bone and cartilage. This study was invented to discuss the challenge we have been encountering, the recent progress we have achieved, and the future perspective we have proposed for in this field.
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Affiliation(s)
- Zhimin Yang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ping Yi
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, China
| | - Zhongyue Liu
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Wenchao Zhang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Lin Mei
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Chengyao Feng
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Chao Tu
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Zhihong Li
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
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11
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Zhao Y, Wang Z, Zhao J, Hussain M, Wang M. Additive Manufacturing in Orthopedics: A Review. ACS Biomater Sci Eng 2022; 8:1367-1380. [PMID: 35266709 DOI: 10.1021/acsbiomaterials.1c01072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Additive manufacturing is an advanced manufacturing manner that seems like the industrial revolution. It has the inborn benefit of producing complex formations, which are distinct from traditional machining technology. Its manufacturing strategy is flexible, including a wide range of materials, and its manufacturing cycle is short. Additive manufacturing techniques are progressively used in bone research and orthopedic operation as more innovative materials are developed. This Review lists the recent research results, analyzes the strengths and weaknesses of diverse three-dimensional printing strategies in orthopedics, and sums up the use of varying 3D printing strategies in surgical guides, surgical implants, surgical predictive models, and bone tissue engineering. Moreover, various postprocessing methods for additive manufacturing for orthopedics are described.
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Affiliation(s)
- Yingchao Zhao
- Xiangya School of Medicine, Central South University, No.172 Yinpenling Street, Tongzipo Road, Changsha 410013, China
| | - Zhen Wang
- Xiangya School of Medicine, Central South University, No.172 Yinpenling Street, Tongzipo Road, Changsha 410013, China
| | - Jingzhou Zhao
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Mubashir Hussain
- Postdoctoral Innovation Practice, Shenzhen Polytechnic, No.4089 Shahe West Road, Xinwei Nanshan District, Shenzhen 518055, China
| | - Maonan Wang
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
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12
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Xu Q, Torres JE, Hakim M, Babiak PM, Pal P, Battistoni CM, Nguyen M, Panitch A, Solorio L, Liu JC. Collagen- and hyaluronic acid-based hydrogels and their biomedical applications. MATERIALS SCIENCE & ENGINEERING. R, REPORTS : A REVIEW JOURNAL 2021; 146:100641. [PMID: 34483486 PMCID: PMC8409465 DOI: 10.1016/j.mser.2021.100641] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Hydrogels have been widely investigated in biomedical fields due to their similar physical and biochemical properties to the extracellular matrix (ECM). Collagen and hyaluronic acid (HA) are the main components of the ECM in many tissues. As a result, hydrogels prepared from collagen and HA hold inherent advantages in mimicking the structure and function of the native ECM. Numerous studies have focused on the development of collagen and HA hydrogels and their biomedical applications. In this extensive review, we provide a summary and analysis of the sources, features, and modifications of collagen and HA. Specifically, we highlight the fabrication, properties, and potential biomedical applications as well as promising commercialization of hydrogels based on these two natural polymers.
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Affiliation(s)
- Qinghua Xu
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jessica E Torres
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Mazin Hakim
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
| | - Paulina M Babiak
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Pallabi Pal
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Carly M Battistoni
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Michael Nguyen
- Department of Biomedical Engineering, University of California Davis, Davis, California 95616, United States
| | - Alyssa Panitch
- Department of Biomedical Engineering, University of California Davis, Davis, California 95616, United States
| | - Luis Solorio
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
| | - Julie C Liu
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
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13
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Foster NC, Allen P, El Haj AJ, Grover LM, Moakes RJA. Tailoring Therapeutic Responses via Engineering Microenvironments with a Novel Synthetic Fluid Gel. Adv Healthc Mater 2021; 10:e2100622. [PMID: 34160135 PMCID: PMC11468753 DOI: 10.1002/adhm.202100622] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/31/2021] [Indexed: 12/28/2022]
Abstract
This study reports the first fully synthetic fluid gel (SyMGels) using a simple poly(ethylene glycol) polymer. Fluid gels are an interesting class of materials: structured during gelation via shear-confinement to form microparticulate suspensions, through a bottom-up approach. Structuring in this way, when compared to first forming a gel and subsequently breaking it down, results in the formation of a particulate dispersion with particles "grown" in the shear flow. Resultantly, systems form a complex microstructure, where gelled particles concentrate remaining non-gelled polymer within the continuous phase, creating an amorphous-like interstitial phase. As such, these materials demonstrate mechanical characteristics typical of colloidal glasses, presenting solid-like behaviors at rest with defined yielding; likely through intrinsic particle-particle and particle-polymer interactions. To date, fluid gels have been fabricated using polysaccharides with relatively complex chemistries, making further modifications challenging. SyMGels are easily functionalised, using simple click-chemistry. This chemical flexibility, allows the creation of microenvironments with discrete biological decoration. Cellular control is demonstrated using MSC (mesenchymal stem cells)/chondrocytes and enables the regulation of key biomarkers such as aggrecan and SOX9. These potential therapeutic platforms demonstrate an important advancement in the biomaterial field, underpinning the mechanisms which drive their mechanical properties, and providing a versatile delivery system for advanced therapeutics.
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Affiliation(s)
- Nicola C. Foster
- Healthcare Technologies InstituteUniversity of BirminghamBirminghamB15 2TTUK
| | - Piers Allen
- Healthcare Technologies InstituteUniversity of BirminghamBirminghamB15 2TTUK
| | - Alicia J. El Haj
- Healthcare Technologies InstituteUniversity of BirminghamBirminghamB15 2TTUK
| | - Liam M. Grover
- Healthcare Technologies InstituteUniversity of BirminghamBirminghamB15 2TTUK
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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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15
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Synthesis and Evaluation of AlgNa-g-Poly(QCL-co-HEMA) Hydrogels as Platform for Chondrocyte Proliferation and Controlled Release of Betamethasone. Int J Mol Sci 2021; 22:ijms22115730. [PMID: 34072090 PMCID: PMC8198102 DOI: 10.3390/ijms22115730] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/08/2021] [Accepted: 05/11/2021] [Indexed: 02/07/2023] Open
Abstract
Hydrogels obtained from combining different polymers are an interesting strategy for developing controlled release system platforms and tissue engineering scaffolds. In this study, the applicability of sodium alginate-g-(QCL-co-HEMA) hydrogels for these biomedical applications was evaluated. Hydrogels were synthesized by free-radical polymerization using a different concentration of the components. The hydrogels were characterized by Fourier transform-infrared spectroscopy, scanning electron microscopy, and a swelling degree. Betamethasone release as well as the in vitro cytocompatibility with chondrocytes and fibroblast cells were also evaluated. Scanning electron microscopy confirmed the porous surface morphology of the hydrogels in all cases. The swelling percent was determined at a different pH and was observed to be pH-sensitive. The controlled release behavior of betamethasone from the matrices was investigated in PBS media (pH = 7.4) and the drug was released in a controlled manner for up to 8 h. Human chondrocytes and fibroblasts were cultured on the hydrogels. The MTS assay showed that almost all hydrogels are cytocompatibles and an increase of proliferation in both cell types after one week of incubation was observed by the Live/Dead® assay. These results demonstrate that these hydrogels are attractive materials for pharmaceutical and biomedical applications due to their characteristics, their release kinetics, and biocompatibility.
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Pennarossa G, Arcuri S, De Iorio T, Gandolfi F, Brevini TAL. Current Advances in 3D Tissue and Organ Reconstruction. Int J Mol Sci 2021; 22:E830. [PMID: 33467648 PMCID: PMC7830719 DOI: 10.3390/ijms22020830] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/31/2020] [Accepted: 01/13/2021] [Indexed: 12/11/2022] Open
Abstract
Bi-dimensional culture systems have represented the most used method to study cell biology outside the body for over a century. Although they convey useful information, such systems may lose tissue-specific architecture, biomechanical effectors, and biochemical cues deriving from the native extracellular matrix, with significant alterations in several cellular functions and processes. Notably, the introduction of three-dimensional (3D) platforms that are able to re-create in vitro the structures of the native tissue, have overcome some of these issues, since they better mimic the in vivo milieu and reduce the gap between the cell culture ambient and the tissue environment. 3D culture systems are currently used in a broad range of studies, from cancer and stem cell biology, to drug testing and discovery. Here, we describe the mechanisms used by cells to perceive and respond to biomechanical cues and the main signaling pathways involved. We provide an overall perspective of the most recent 3D technologies. Given the breadth of the subject, we concentrate on the use of hydrogels, bioreactors, 3D printing and bioprinting, nanofiber-based scaffolds, and preparation of a decellularized bio-matrix. In addition, we report the possibility to combine the use of 3D cultures with functionalized nanoparticles to obtain highly predictive in vitro models for use in the nanomedicine field.
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Affiliation(s)
- Georgia Pennarossa
- Laboratory of Biomedical Embryology, Department of Health, Animal Science and Food Safety and Center for Stem Cell Research, Università degli Studi di Milano, Via Celoria 10, 20133 Milan, Italy; (G.P.); (S.A.); (T.D.I.)
| | - Sharon Arcuri
- Laboratory of Biomedical Embryology, Department of Health, Animal Science and Food Safety and Center for Stem Cell Research, Università degli Studi di Milano, Via Celoria 10, 20133 Milan, Italy; (G.P.); (S.A.); (T.D.I.)
| | - Teresina De Iorio
- Laboratory of Biomedical Embryology, Department of Health, Animal Science and Food Safety and Center for Stem Cell Research, Università degli Studi di Milano, Via Celoria 10, 20133 Milan, Italy; (G.P.); (S.A.); (T.D.I.)
| | - Fulvio Gandolfi
- Department of Agricultural and Environmental Sciences—Production, Landscape, Agroenergy and Center for Stem Cell Research, Università degli Studi di Milano, Via Celoria 2, 20133 Milan, Italy;
| | - Tiziana A. L. Brevini
- Laboratory of Biomedical Embryology, Department of Health, Animal Science and Food Safety and Center for Stem Cell Research, Università degli Studi di Milano, Via Celoria 10, 20133 Milan, Italy; (G.P.); (S.A.); (T.D.I.)
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Watanabe T, Asawa Y, Watanabe M, Okubo R, Nio M, Takato T, Hoshi K, Hikita A. The usefulness of the decellularized matrix from three-dimensional regenerative cartilage as a scaffold material. Regen Ther 2020; 15:312-322. [PMID: 33426234 PMCID: PMC7770429 DOI: 10.1016/j.reth.2020.11.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/30/2020] [Accepted: 11/18/2020] [Indexed: 11/30/2022] Open
Abstract
In cartilage tissue engineering, research on materials for three-dimensional (3D) scaffold has attracted attention. Decellularized matrix can be one of the candidates for the scaffold material. In this study, decellularization of regenerated cartilage was carried out and its effectiveness as a scaffold material was examined. Three-dimensionally-cultured cartilage constructs in the differentiation medium containing IGF-1 produced more cartilage matrix than those in the proliferation medium. Detergent-enzymatic method (DEM) could decellularize 3D-cultured cartilage constructs only by 1 cycle without breaking down the structure of the constructs. In vitro, newly-seeded chondrocytes were infiltrated and engrafted into decellularized constructs in the proliferation medium, and newly formed fibers were observed around the surface where newly-seeded cells were attached. Recellularized constructs could mature similarly as those without decellularization in vivo. The decellularized 3D-cultured matrix from regenerative cartilage is expected to be used as a scaffold material in the future.
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Affiliation(s)
- Tomohiko Watanabe
- Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, 1-1, Seiryomachi, Aoba-ku, Sendai 980-8574, Japan
| | - Yukiyo Asawa
- Department of Cell & Tissue Engineering (Fujisoft), Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan.,Department of Tissue Engineering, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Makoto Watanabe
- Department of Tissue Engineering, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Ryuji Okubo
- Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, 1-1, Seiryomachi, Aoba-ku, Sendai 980-8574, Japan
| | - Masaki Nio
- Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, 1-1, Seiryomachi, Aoba-ku, Sendai 980-8574, Japan
| | - Tsuyoshi Takato
- JR Tokyo General Hospital, Yoyogi 2-1-3, Shibuya-ku, Tokyo 151-8528, Japan
| | - Kazuto Hoshi
- Department of Tissue Engineering, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan.,Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Atsuhiko Hikita
- Department of Cell & Tissue Engineering (Fujisoft), Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan.,Department of Tissue Engineering, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan
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18
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Jang CH, Koo Y, Kim G. ASC/chondrocyte-laden alginate hydrogel/PCL hybrid scaffold fabricated using 3D printing for auricle regeneration. Carbohydr Polym 2020; 248:116776. [DOI: 10.1016/j.carbpol.2020.116776] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/12/2020] [Accepted: 07/13/2020] [Indexed: 12/13/2022]
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Catoira MC, González-Payo J, Fusaro L, Ramella M, Boccafoschi F. Natural hydrogels R&D process: technical and regulatory aspects for industrial implementation. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:64. [PMID: 32696261 PMCID: PMC7374448 DOI: 10.1007/s10856-020-06401-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 07/08/2020] [Indexed: 05/17/2023]
Abstract
Since hydrogel therapies have been introduced into clinic treatment procedures, the biomedical industry has to face the technology transfer and the scale-up of the processes. This will be key in the roadmap of the new technology implementation. Transfer technology and scale-up are already known for some applications but other applications, such as 3D printing, are still challenging. Decellularized tissues offer a lot of advantages when compared to other natural gels, for example they display enhanced biological properties, due to their ability to preserve natural molecules. For this reason, even though their use as a source for bioinks represents a challenge for the scale-up process, it is very important to consider the advantages that originate with overcoming this challenge. Therefore, many aspects that influence the scaling of the industrial process should be considered, like the addition of drugs or cells to the hydrogel, also, the gelling process is important to determine the chemical and physical parameters that must be controlled in order to guarantee a successful process. Legal aspects are also crucial when carrying out the scale-up of the process since they determine the industrial implementation success from the regulatory point of view. In this context, the new law Regulation (EU) 2017/745 on biomedical devices will be considered. This review summarizes the different aspects, including the legal ones, that should be considered when scaling up hydrogels of natural origin, in order to balance these different aspects and to optimize the costs in terms of raw materials and engine.
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Affiliation(s)
- Marta Calvo Catoira
- Center for Translational Research on Autoimmune & Allergic Diseases-CAAD, 28100, Novara, Italy
- Tissuegraft srl, 28100, Novara, Italy
| | - Javier González-Payo
- Telecomunicación, Department of Signal Theory and Communications, University of Vigo, 36310, Vigo, Spain
| | - Luca Fusaro
- Tissuegraft srl, 28100, Novara, Italy
- Department of Health Sciences, University of Piemonte Orientale, 28100, Novara, Italy
| | | | - Francesca Boccafoschi
- Center for Translational Research on Autoimmune & Allergic Diseases-CAAD, 28100, Novara, Italy.
- Tissuegraft srl, 28100, Novara, Italy.
- Department of Health Sciences, University of Piemonte Orientale, 28100, Novara, Italy.
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Jessop ZM, Al-Sabah A, Simoes IN, Burnell SEA, Pieper IL, Thornton CA, Whitaker IS. Isolation and characterisation of nasoseptal cartilage stem/progenitor cells and their role in the chondrogenic niche. Stem Cell Res Ther 2020; 11:177. [PMID: 32408888 PMCID: PMC7222513 DOI: 10.1186/s13287-020-01663-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 02/21/2020] [Accepted: 03/24/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Since cartilage-derived stem/progenitor cells (CSPCs) were first identified in articular cartilage using differential adhesion to fibronectin, their self-renewal capacity and niche-specific lineage preference for chondrogenesis have propelled their application for cartilage tissue engineering. In many adult tissues, stem/progenitor cells are recognised to be involved in tissue homeostasis. However, the role of nasoseptal CSPCs has not yet been elucidated. Our aim was to isolate and characterise nasoseptal CSPCs alongside nasoseptal chondrocyte populations and determine chondrogenic capacity. METHODS Here, we isolated nasoseptal CSPCs using differential adhesion to fibronectin and assessed their colony forming efficiency, proliferation kinetics, karyotype and trilineage potential. CSPCs were characterised alongside non-fibronectin-adherent nasoseptal chondrocytes (DNCs) and cartilage-derived cells (CDCs, a heterogenous combination of DNCs and CSPCs) by assessing differences in gene expression profiles using PCR Stem Cell Array, immunophenotype using flow cytometry and chondrogencity using RT-PCR and histology. RESULTS CSPCs were clonogenic with increased gene expression of the neuroectodermal markers NCAM1 and N-Cadherin, as well as Cyclins D1 and D2, compared to DNCs. All three cell populations expressed recognised mesenchymal stem cell surface markers (CD29, CD44, CD73, CD90), yet only CSPCs and CDCs showed multilineage differentiation potential. CDC populations expressed significantly higher levels of type 2 collagen and bone morphogenetic protein 2 genes, with greater cartilage extracellular matrix secretion. When DNCs were cultured in isolation, there was reduced chondrogenicity and higher expression of type 1 collagen, stromal cell-derived factor 1 (SDF-1), CD73 and CD90, recognised markers of a fibroblast-like phenotype. CONCLUSIONS Fibronectin-adherent CSPCs demonstrate a unique gene expression profile compared to non-fibronectin-adherent DNCs. DNCs cultured in isolation, without CSPCs, express fibroblastic phenotype with reduced chondrogenicity. Mixed populations of stem/progenitor cells and chondrocytes were required for optimal chondrogenesis, suggesting that CSPCs may be required to retain phenotypic stability and chondrogenic potential of DNCs. Crosstalk between DNCs and CSPCs is proposed based on SDF-1 signalling.
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Affiliation(s)
- Zita M Jessop
- Reconstructive Surgery and Regenerative Medicine Research Group, Institute of Life Sciences, Swansea University Medical School, Swansea, SA2 8PP, UK.,Welsh Centre for Burns and Plastic Surgery, Morriston Hospital, Swansea, SA6 6NL, UK
| | - Ayesha Al-Sabah
- Reconstructive Surgery and Regenerative Medicine Research Group, Institute of Life Sciences, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - Irina N Simoes
- Reconstructive Surgery and Regenerative Medicine Research Group, Institute of Life Sciences, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - Stephanie E A Burnell
- Reconstructive Surgery and Regenerative Medicine Research Group, Institute of Life Sciences, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - Ina Laura Pieper
- Calon Cardio-Technology Ltd, Institute of Life Sciences, Swansea, SA2 8PP, UK
| | - Catherine A Thornton
- Reconstructive Surgery and Regenerative Medicine Research Group, Institute of Life Sciences, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - Iain S Whitaker
- Reconstructive Surgery and Regenerative Medicine Research Group, Institute of Life Sciences, Swansea University Medical School, Swansea, SA2 8PP, UK. .,Welsh Centre for Burns and Plastic Surgery, Morriston Hospital, Swansea, SA6 6NL, UK.
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Kumar A, I Matari IA, Han SS. 3D printable carboxylated cellulose nanocrystal-reinforced hydrogel inks for tissue engineering. Biofabrication 2020; 12:025029. [DOI: 10.1088/1758-5090/ab736e] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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22
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Okubo R, Asawa Y, Watanabe M, Nagata S, Nio M, Takato T, Hikita A, Hoshi K. Proliferation medium in three-dimensional culture of auricular chondrocytes promotes effective cartilage regeneration in vivo. Regen Ther 2019; 11:306-315. [PMID: 31687424 PMCID: PMC6818372 DOI: 10.1016/j.reth.2019.10.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/11/2019] [Accepted: 10/01/2019] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION Cartilage regeneration have been attracted attentions because of the poor ability of cartilage tissues to regenerate. Three-dimensional (3D) culture of chondrocytes is considered to be advantageous for cartilage regeneration. Although it is plausible that maturation of the constructs before transplantation positively affects the chondrogenesis, matured constructs after cultures for longer periods do not necessarily result in effective cartilage regeneration. In this study, we compared different types of culture media including growth factors which are clinically available. We prepared differentiation medium containing insulin-like growth factor-1 (IGF-1), proliferation medium containing fibroblast growth factor-2 (FGF-2) and insulin, and combination of them, and compared their efficacies on chondrogenesis when used in 3D culture of engineered cartilage constructs. METHODS Cartilage constructs were fabricated by auricular chondrocytes and atelocollagen, and they were 3D-cultured with four types of media: control medium, differentiation medium, proliferation medium, and combination medium. After 3 weeks of culture, the constructs were analyzed for cell number, gene and protein expressions and mechanical properties. The constructs were also transplanted into nude mice. After 8 weeks, the degree of cartilage regeneration was evaluated. Constructs manufactured with canine auricular chondrocytes were subjected to autologous transplantation into beagles and examined for cartilage regeneration. RESULTS During 3D culture, remarkably high gene expression of type II collagen was detected in the construct cultured with the differentiation medium whereas cell apoptosis were suppressed in the proliferation medium. When transplanted into nude mice, the constructs 3D-cultured in the proliferation medium produced abundant cartilage matrices. In autologous implantation model, the construct cultured in the proliferation medium again showed better chondrogenesis than those in other media. CONCLUSIONS The present study indicates that 3D culture with the proliferation medium maintains the cell viability to potentiate the subsequent cartilage regeneration. Here, we propose that not only differentiation but also high cell viability accompanied by proliferation factors should be taken into account to improve cartilage regeneration.
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Affiliation(s)
- Ryuji Okubo
- Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, 1-1, Seiryomachi, Aoba-ku, Sendai 980-8574, Japan
| | - Yukiyo Asawa
- Department of Cell & Tissue Engineering (Fujisoft), Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Makoto Watanabe
- Department of Cell & Tissue Engineering (Fujisoft), Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Satoru Nagata
- Nagata Microtia and Reconstructive Plastic Surgery Clinic, Sasameminamicho 22-1, Toda, Saitama 335-0035, Japan
| | - Masaki Nio
- Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, 1-1, Seiryomachi, Aoba-ku, Sendai 980-8574, Japan
| | - Tsuyoshi Takato
- JR Tokyo General Hospital, Yoyogi 2-1-3, Shibuya-ku, Tokyo 151-8528, Japan
| | - Atsuhiko Hikita
- Department of Cell & Tissue Engineering (Fujisoft), Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Kazuto Hoshi
- Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan
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Catoira MC, Fusaro L, Di Francesco D, Ramella M, Boccafoschi F. Overview of natural hydrogels for regenerative medicine applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:115. [PMID: 31599365 PMCID: PMC6787111 DOI: 10.1007/s10856-019-6318-7] [Citation(s) in RCA: 365] [Impact Index Per Article: 73.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 09/27/2019] [Indexed: 05/18/2023]
Abstract
Hydrogels from different materials can be used in biomedical field as an innovative approach in regenerative medicine. Depending on the origin source, hydrogels can be synthetized through chemical and physical methods. Hydrogel can be characterized through several physical parameters, such as size, elastic modulus, swelling and degradation rate. Lately, research is focused on hydrogels derived from biologic materials. These hydrogels can be derived from protein polymers, such as collage, elastin, and polysaccharide polymers like glycosaminoglycans or alginate among others. Introduction of decellularized tissues into hydrogels synthesis displays several advantages compared to natural or synthetic based hydrogels. Preservation of natural molecules such as growth factors, glycans, bioactive cryptic peptides and natural proteins can promote cell growth, function, differentiation, angiogenesis, anti-angiogenesis, antimicrobial effects, and chemotactic effects. Versatility of hydrogels make possible multiple applications and combinations with several molecules on order to obtain the adequate characteristic for each scope. In this context, a lot of molecules such as cross link agents, drugs, grow factors or cells can be used. This review focuses on the recent progress of hydrogels synthesis and applications in order to classify the most recent and relevant matters in biomedical field.
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Affiliation(s)
- Marta Calvo Catoira
- Department of Health Sciences, University of Piemonte Orientale, 28100, Novara, Italy
- Tissuegraft srl, 28100, Novara, Italy
- Center for Translational Research on Autoimmune & Allergic Diseases - CAAD, Novara, 28100, Italy
| | - Luca Fusaro
- Department of Health Sciences, University of Piemonte Orientale, 28100, Novara, Italy
- Tissuegraft srl, 28100, Novara, Italy
| | - Dalila Di Francesco
- Department of Health Sciences, University of Piemonte Orientale, 28100, Novara, Italy
| | | | - Francesca Boccafoschi
- Department of Health Sciences, University of Piemonte Orientale, 28100, Novara, Italy.
- Tissuegraft srl, 28100, Novara, Italy.
- Center for Translational Research on Autoimmune & Allergic Diseases - CAAD, Novara, 28100, Italy.
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Amin K, Moscalu R, Imere A, Murphy R, Barr S, Tan Y, Wong R, Sorooshian P, Zhang F, Stone J, Fildes J, Reid A, Wong J. The future application of nanomedicine and biomimicry in plastic and reconstructive surgery. Nanomedicine (Lond) 2019; 14:2679-2696. [DOI: 10.2217/nnm-2019-0119] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Plastic surgery encompasses a broad spectrum of reconstructive challenges and prides itself upon developing and adopting new innovations. Practice has transitioned from microsurgery to supermicrosurgery with a possible future role in even smaller surgical frontiers. Exploiting materials on a nanoscale has enabled better visualization and enhancement of biological processes toward better wound healing, tumor identification and viability of tissues, all cornerstones of plastic surgery practice. Recent advances in nanomedicine and biomimicry herald further reconstructive progress facilitating soft and hard tissue, nerve and vascular engineering. These lay the foundation for improved biocompatibility and tissue integration by the optimization of engineered implants or tissues. This review will broadly examine each of these technologies, highlighting areas of progress that reconstructive surgeons may not be familiar with, which could see adoption into our armamentarium in the not-so-distant future.
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Affiliation(s)
- Kavit Amin
- Blond McIndoe Laboratories, Division of Cell Matrix Biology & Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Department of Plastic Surgery & Burns, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
- Manchester Collaborative Centre for Inflammation Research (MCCIR), Division of Infection, Immunity & Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine & Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- The Transplant Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Roxana Moscalu
- Blond McIndoe Laboratories, Division of Cell Matrix Biology & Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Angela Imere
- Blond McIndoe Laboratories, Division of Cell Matrix Biology & Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Department of Materials, School of Natural Sciences, Faculty of Science & Engineering Research Institutes, The University of Manchester, MSS Tower, Manchester, UK
| | - Ralph Murphy
- Blond McIndoe Laboratories, Division of Cell Matrix Biology & Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Department of Plastic Surgery & Burns, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Simon Barr
- Blond McIndoe Laboratories, Division of Cell Matrix Biology & Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Department of Plastic Surgery & Burns, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Youri Tan
- Blond McIndoe Laboratories, Division of Cell Matrix Biology & Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Department of Plastic Surgery & Burns, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Richard Wong
- Blond McIndoe Laboratories, Division of Cell Matrix Biology & Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Department of Plastic Surgery & Burns, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Parviz Sorooshian
- Blond McIndoe Laboratories, Division of Cell Matrix Biology & Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Fei Zhang
- Blond McIndoe Laboratories, Division of Cell Matrix Biology & Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Department of Materials, School of Natural Sciences, Faculty of Science & Engineering Research Institutes, The University of Manchester, MSS Tower, Manchester, UK
| | - John Stone
- Manchester Collaborative Centre for Inflammation Research (MCCIR), Division of Infection, Immunity & Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine & Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- The Transplant Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - James Fildes
- Manchester Collaborative Centre for Inflammation Research (MCCIR), Division of Infection, Immunity & Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine & Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- The Transplant Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Adam Reid
- Blond McIndoe Laboratories, Division of Cell Matrix Biology & Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Department of Plastic Surgery & Burns, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Jason Wong
- Blond McIndoe Laboratories, Division of Cell Matrix Biology & Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Department of Plastic Surgery & Burns, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
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Saka N, Watanabe Y, Abe S, Yajima A, Kawano H. Implant-type tissue-engineered cartilage derived from human auricular chondrocyte may maintain cartilaginous property even under osteoinductive condition. Regen Med Res 2019; 7:1. [PMID: 31381498 PMCID: PMC6682370 DOI: 10.1051/rmr/190001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 07/08/2019] [Indexed: 01/07/2023] Open
Abstract
INTRODUCTION There is a growing need for chondrocyte implantation for reconstructing cartilage defect. However, ossification of the implanted cartilage is a challenging problem. Implant-type tissue-engineered cartilage from human auricular chondrocytes is a three-dimensional implant type cartilage using PLLA as a scaffold for chondrocytes. Although there is a study which evaluated the ossification of this cartilage in subcutaneous area, there is no study which clarify the possibility of ossification in osteoinductive surroundings. The purpose of this study was to elucidate the possibility of the ossification of implant-type tissue-engineered cartilage using human auricular chondrocyte in an osteoinductive environment. METHODS Human chondrocytes were harvested from ear cartilage. After dispersion by enzyme digestion, they were put into either a poly-L-lactic acid (PLLA) or poly lactic-co-glycolic acid (PLGA) scaffold, with collagen gel. Implant-type tissue-engineered cartilage was interposed between pieces of human iliac bone harvested from the same donor and implanted subcutaneously in nude rats. Scaffold without chondrocytes was used as a control. After 1, 3, and 6 months, ossification and cartilage formation were evaluated by X-ray, hematoxylin-eosin (HE) stain and toluidine blue (TB) stain. RESULTS There was no ossification of implant-type cartilage using human chondrocytes, even under osteoinductive conditions. HE staining showed that perichondrium formed around the constructs and chondrocytes were observed 6months after the implantation. TB staining showed metachromasia in every sample, with the area of metachromasia increasing over time, suggesting maturation of the cartilage. CONCLUSIONS In conclusion, adjacent iliac bone had no apparent effect on the maturation of cartilage in implant-type tissue-engineered cartilage. Cartilage retention and maturation even in the presence of iliac bone could have been due to a scarcity of mesenchymal stem cells in the bone and surrounding area.
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Affiliation(s)
- Natsumi Saka
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Department of Orthopaedics, Teikyo University School of Medicine, Tokyo, Japan, 2-11-1 Kaga Itabashi Tokyo 173-8606 Japan
,Corresponding author:
| | - Yoshinobu Watanabe
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Department of Orthopaedics, Teikyo University School of Medicine, Tokyo, Japan, 2-11-1 Kaga Itabashi Tokyo 173-8606 Japan
| | - Satoshi Abe
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Department of Orthopaedics, Teikyo University School of Medicine, Tokyo, Japan, 2-11-1 Kaga Itabashi Tokyo 173-8606 Japan
| | - Ayako Yajima
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FUJISOFT Co., Ltd, Tokyo, Japan, 2-19-7, Kotobashi Sumida Tokyo 130-0022 Japan
| | - Hirotaka Kawano
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Department of Orthopaedics, Teikyo University School of Medicine, Tokyo, Japan, 2-11-1 Kaga Itabashi Tokyo 173-8606 Japan
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Ansari S, Khorshidi S, Karkhaneh A. Engineering of gradient osteochondral tissue: From nature to lab. Acta Biomater 2019; 87:41-54. [PMID: 30721785 DOI: 10.1016/j.actbio.2019.01.071] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 12/22/2018] [Accepted: 01/31/2019] [Indexed: 12/11/2022]
Abstract
The osteochondral tissue is an interface between two distinct tissues: articular cartilage and bone. These two tissues are significantly diverse with regard to their chemical compositions, mechanical properties, structure, electrical properties, and the amount of nutrient and oxygen consumption. Thus, transition from the surface of the articular cartilage to the subchondral bone needs to face several smooth gradients. These gradients are imperative to study to generate a scaffold suitable for the reconstruction of the cartilaginous and osseous layers of a defected osteochondral tissue, simultaneously. The aim of this review is to peruse the alternation of biochemical, biomechanical, structural, electrical, and metabolic properties of the osteochondral tissue moving from the surface of the articular cartilage to the subchondral bone. Moreover, this review also discusses currently developed approaches and ideal techniques with a focus on gradients present in the interface of the cartilage and bone. STATEMENT OF SIGNIFICANCE: The submitted review paper entitled as "Engineering of the gradient osteochondral tissue: from nature to lab" is a complete review with regard to the osteochondral tissue and transition of different properties between the cartilage and bone tissues. Moreover, previous studies on the osteochondral tissue engineering have been reviewed in this paper. This complete information can be a valuable and useful source for current and future researchers and scientists. Considering the scope of the submitted paper, Acta Biomaterialia would be a suitable journal for publishing this article.
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Zhang Y, Yu J, Ren K, Zuo J, Ding J, Chen X. Thermosensitive Hydrogels as Scaffolds for Cartilage Tissue Engineering. Biomacromolecules 2019; 20:1478-1492. [PMID: 30843390 DOI: 10.1021/acs.biomac.9b00043] [Citation(s) in RCA: 174] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yanbo Zhang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130033, P. R. China
| | - Jiakuo Yu
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, 49 Huayuanbei Road, Beijing 100191, P. R. China
| | - Kaixuan Ren
- Mork Family Department of Chemical Engineering & Materials Science, University of Southern California, 925 West 34th Street, Los Angeles, California 90089, United States of America
| | - Jianlin Zuo
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130033, P. R. China
| | - Jianxun Ding
- Key Laboratory
of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Xuesi Chen
- Key Laboratory
of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, P. R. China
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Dufour A, Buffier M, Vertu-Ciolino D, Disant F, Mallein-Gerin F, Perrier-Groult E. Combination of bioactive factors and IEIK13 self-assembling peptide hydrogel promotes cartilage matrix production by human nasal chondrocytes. J Biomed Mater Res A 2019; 107:893-903. [PMID: 30650239 DOI: 10.1002/jbm.a.36612] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 12/17/2018] [Accepted: 01/09/2019] [Indexed: 02/01/2023]
Abstract
Nasal reconstruction remains a challenge for every reconstructive surgeon. Alloplastic implants are proposed to repair nasal cartilaginous defects but they are often associated with high rates of extrusion and infection and poor biocompatibility. In this context, a porous polymeric scaffold filled with an autologous cartilage gel would be advantageous. In this study, we evaluated the capacity of IEIK13 self-assembling peptide (SAP) to serve as support to form such cartilage gel. Human nasal chondrocytes (HNC) were first amplified with FGF-2 and insulin, and then redifferentiated in IEIK13 with BMP-2, insulin, and T3 (BIT). Our results demonstrate that IEIK13 fosters HNC growth and survival. HNC phenotype was assessed by RT-PCR analysis and neo-synthesized extracellular matrix was characterized by western blotting and immunohistochemistry analysis. BIT-treated cells embedded in IEIK13 displayed round morphology and expressed cartilage-specific markers such as type II and type IX collagens and aggrecan. In addition, we did not detect significant production of type I and type X collagens and gene products of dedifferentiated and hypertrophic chondrocytes that are unwanted in hyaline cartilage. The whole of these results indicates that the SAP IEIK13 represents a suitable support for hydrogel-based tissue engineering of nasal cartilage. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 893-903, 2019.
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Affiliation(s)
- Alexandre Dufour
- Laboratory of Tissue Biology and Therapeutic Engineering (LBTI), CNRS UMR 5305, Institute for Biology and Chemistry of Proteins, Lyon, France
| | | | - Delphine Vertu-Ciolino
- Department of otolaryngology-head and neck surgery, Édouard-Herriot hospital, Lyon, France
| | - François Disant
- Department of otolaryngology-head and neck surgery, Édouard-Herriot hospital, Lyon, France
| | - Frédéric Mallein-Gerin
- Laboratory of Tissue Biology and Therapeutic Engineering (LBTI), CNRS UMR 5305, Institute for Biology and Chemistry of Proteins, Lyon, France
| | - Emeline Perrier-Groult
- Laboratory of Tissue Biology and Therapeutic Engineering (LBTI), CNRS UMR 5305, Institute for Biology and Chemistry of Proteins, Lyon, France
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Graceffa V, Vinatier C, Guicheux J, Stoddart M, Alini M, Zeugolis DI. Chasing Chimeras - The elusive stable chondrogenic phenotype. Biomaterials 2018; 192:199-225. [PMID: 30453216 DOI: 10.1016/j.biomaterials.2018.11.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 11/02/2018] [Accepted: 11/09/2018] [Indexed: 12/27/2022]
Abstract
The choice of the best-suited cell population for the regeneration of damaged or diseased cartilage depends on the effectiveness of culture conditions (e.g. media supplements, three-dimensional scaffolds, mechanical stimulation, oxygen tension, co-culture systems) to induce stable chondrogenic phenotype. Herein, advances and shortfalls in in vitro, preclinical and clinical setting of various in vitro microenvironment modulators on maintaining chondrocyte phenotype or directing stem cells towards chondrogenic lineage are critically discussed. Chondrocytes possess low isolation efficiency, limited proliferative potential and rapid phenotypic drift in culture. Mesenchymal stem cells are relatively readily available, possess high proliferation potential, exhibit great chondrogenic differentiation capacity, but they tend to acquire a hypertrophic phenotype when exposed to chondrogenic stimuli. Embryonic and induced pluripotent stem cells, despite their promising in vitro and preclinical data, are still under-investigated. Although a stable chondrogenic phenotype remains elusive, recent advances in in vitro microenvironment modulators are likely to develop clinically- and commercially-relevant therapies in the years to come.
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Affiliation(s)
- Valeria Graceffa
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Claire Vinatier
- INSERMU1229, Regenerative Medicine and Skeleton (RMeS), University of Nantes, UFR Odontologie & CHU Nantes, PHU 4 OTONN, 44042 Nantes, France
| | - Jerome Guicheux
- INSERMU1229, Regenerative Medicine and Skeleton (RMeS), University of Nantes, UFR Odontologie & CHU Nantes, PHU 4 OTONN, 44042 Nantes, France
| | - Martin Stoddart
- AO Research Institute, Clavadelerstrasse 8, 7270 Davos, Switzerland
| | - Mauro Alini
- AO Research Institute, Clavadelerstrasse 8, 7270 Davos, Switzerland
| | - Dimitrios I Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland.
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Jiang X, Liu J, Liu Q, Lu Z, Zheng L, Zhao J, Zhang X. Therapy for cartilage defects: functional ectopic cartilage constructed by cartilage-simulating collagen, chondroitin sulfate and hyaluronic acid (CCH) hybrid hydrogel with allogeneic chondrocytes. Biomater Sci 2018; 6:1616-1626. [PMID: 29737330 DOI: 10.1039/c8bm00354h] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To regenerate functional cartilage-mimicking ectopic cartilage as a source for the restoration of cartilage defects, we used a previously synthesized three-phase collagen, chondroitin sulfate and hyaluronic acid (CCH) hydrogel for the encapsulation of allogeneic chondrocytes with a diffusion chamber system that was buried subcutaneously in the host for 4 weeks and then implanted into a cartilage defect. METHODS The CCH hydrogel was prepared and seeded with allogeneic chondrocytes from new-born rabbits, prior to being enveloped in a diffusion chamber that prevents cell ingrowth and vascular invasion of the host, as described previously. A collagen hydrogel (C) was used as the control. The diffusion chamber was embedded subcutaneously in an adult rabbit. 4 weeks later, the regenerated tissue was harvested from the diffusion chamber and then further used for cartilage repair in the same host. To evaluate the regenerated tissue, cell viability assay using calcein-acetoxymethyl (calcein-AM)/propidium iodide (PI) staining, biochemical analysis by examination of total DNA and GAG content, gene expression detection using RT-PCR for Col 1a1, Col 2a1, Acan, and Sox9, biomechanical detection and histological evaluation were implemented. RESULTS Analysis of the cell activity and biochemical evaluation in vitro showed that cell proliferation, GAG secretion and gene/protein expression of cartilage specific markers were much higher in the CCH group than those in the C group. The CCH constructed ectopic cartilage tissue in vivo showed the typical characteristics of hyaline cartilage with higher expression of cartilage matrix markers compared with the C groups, as evidenced by morphological and histological findings as well as RT-PCR analysis. Furthermore, ectopic cartilage from CCH successfully facilitated the cartilage restoration, with higher morphological and histological scores and greater mechanical strength than that from C. CONCLUSION The three-phase CCH hydrogel, which is closer to natural cartilage matrix and is stiffer than collagen, may replace collagen as the "gold standard" for cartilage tissue engineering. This study may provide a new insight for cartilage repair using ectopic cartilage reconstructed from functional materials and allogeneic cells.
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Affiliation(s)
- Xianfang Jiang
- The College of Stomatology of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
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Self-induced mechanical stress can trigger biofilm formation in uropathogenic Escherichia coli. Nat Commun 2018; 9:4087. [PMID: 30291231 PMCID: PMC6173693 DOI: 10.1038/s41467-018-06552-z] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 09/06/2018] [Indexed: 11/08/2022] Open
Abstract
Bacterial biofilms represent an important medical problem; however, the mechanisms of the onset of biofilm formation are poorly understood. Here, using new controlled methods allowing high-throughput and reproducible biofilm growth, we show that biofilm formation is linked to self-imposed mechanical stress. In growing uropathogenic Escherichia coli colonies, we report that mechanical stress can initially emerge from the physical stress accompanying colony confinement within micro-cavities or hydrogel environments reminiscent of the cytosol of host cells. Biofilm formation can then be enhanced by a nutrient access-modulated feedback loop, in which biofilm matrix deposition can be particularly high in areas of increased mechanical and biological stress, with the deposited matrix further enhancing the stress levels. This feedback regulation can lead to adaptive and diverse biofilm formation guided by the environmental stresses. Our results suggest previously unappreciated mechanisms of the onset and progression of biofilm growth. Bacterial biofilms are an increasingly important medical problem but the mechanisms by which they develop remain largely unknown. Here, using a high-throughput approach, the authors show that biofilm formation is linked to self-imposed mechanical stress.
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Zhu X, Chen T, Feng B, Weng J, Duan K, Wang J, Lu X. Biomimetic Bacterial Cellulose-Enhanced Double-Network Hydrogel with Excellent Mechanical Properties Applied for the Osteochondral Defect Repair. ACS Biomater Sci Eng 2018; 4:3534-3544. [DOI: 10.1021/acsbiomaterials.8b00682] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiangbo Zhu
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Taijun Chen
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Bo Feng
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Jie Weng
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Ke Duan
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Jianxin Wang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Xiaobo Lu
- Department of Bone and Joint Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
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Deepthi S, Jayakumar R. Alginate nanobeads interspersed fibrin network as in situ forming hydrogel for soft tissue engineering. Bioact Mater 2017; 3:194-200. [PMID: 29744457 PMCID: PMC5935774 DOI: 10.1016/j.bioactmat.2017.09.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 09/23/2017] [Accepted: 09/25/2017] [Indexed: 01/04/2023] Open
Abstract
Hydrogels are a class of materials that has the property of injectability and in situ gel formation. This property of hydrogels is manipulated in this study to develop a biomimetic bioresorbable injectable system of alginate nanobeads interspersed in fibrin network. Alginate nanobeads developed by calcium cross-linking yielded a size of 200–500 nm. The alginate nanobeads fibrin hydrogel was formed using dual syringe apparatus. Characterization of the in situ injectable hydrogel was done by SEM, FTIR and Rheometer. The developed hydrogel showed mechanical strength of 19 kPa which provides the suitable compliance for soft tissue engineering. Cytocompatibility studies using human umbilical cord blood derived mesenchymal stem cells showed good attachment, proliferation and infiltration within the hydrogel similar to fibrin gel. The developed in situ forming hydrogel could be a suitable delivery carrier of stem cells for soft tissue regeneration. Alginate nanobeads interspersed in fibrin network formed in situ hydrogel. The developed in situ hydrogel mimics native soft tissue elasticity. Enhanced mesenchymal stem cell proliferation and infiltration observed on hydrogel. This injectable in situ gel forms suitable substrate for soft tissue reconstruction.
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Dorcemus DL, George EO, Dealy CN, Nukavarapu SP. * Harnessing External Cues: Development and Evaluation of an In Vitro Culture System for Osteochondral Tissue Engineering. Tissue Eng Part A 2017; 23:719-737. [PMID: 28346796 PMCID: PMC5568178 DOI: 10.1089/ten.tea.2016.0439] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 02/15/2017] [Indexed: 01/14/2023] Open
Abstract
Over the last decade, engineered structures have been developed for osteochondral (OC) tissue regeneration. While the optimal structure design is yet to be determined, these scaffolds require in vitro evaluation before clinical use. However, the means by which complex scaffolds, such as OC scaffolds, can be tested are limited. Taking advantage of a mesenchymal stem cell's (MSC's) ability to respond to its surrounding we harness external cues, such as the cell's mechanical environment and delivered factors, to create an in vitro culture system for OC tissue engineering with a single cell source on a gradient yet integrated scaffold system. To do this, the effect of hydrogel stiffness on the expression of human MSCs (hMSCs) chondrogenic differentiation was studied using histological analysis. Additionally, hMSCs were also cultured in different combinations of chondrogenic and osteogenic media to develop a co-differentiation media suitable for OC lineage differentiation. A uniquely graded (density-gradient matrix) OC scaffold with a distal cartilage hydrogel phase specifically tailored to support chondrogenic differentiation was cultured using a newly developed "simulated in vivo culture method." The scaffold's culture in co-differentiation media models hMSC infiltration into the scaffold and subsequent differentiation into the distal cartilage and proximal bone layers. Cartilage and bone marker staining along with specific matrix depositions reveal the effect of external cues on the hMSC differentiation. As a result of these studies a model system was developed to study and culture OC scaffolds in vitro.
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Affiliation(s)
- Deborah L Dorcemus
- 1 Department of Biomedical Engineering, University of Connecticut , Storrs, Connecticut
- 2 Institute for Regenerative Engineering, UCONN Health , Farmington, Connecticut
| | - Eve O George
- 2 Institute for Regenerative Engineering, UCONN Health , Farmington, Connecticut
| | - Caroline N Dealy
- 3 Center for Regenerative Medicine and Skeletal Development, Department of Reconstructive Sciences, UCONN Health , Farmington, Connecticut
| | - Syam P Nukavarapu
- 1 Department of Biomedical Engineering, University of Connecticut , Storrs, Connecticut
- 2 Institute for Regenerative Engineering, UCONN Health , Farmington, Connecticut
- 4 Orthopaedic Surgery Department, UCONN Health , Farmington, Connecticut
- 5 Department of Material Science and Engineering, University of Connecticut , Storrs, Connecticut
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You F, Eames BF, Chen X. Application of Extrusion-Based Hydrogel Bioprinting for Cartilage Tissue Engineering. Int J Mol Sci 2017; 18:E1597. [PMID: 28737701 PMCID: PMC5536084 DOI: 10.3390/ijms18071597] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 07/10/2017] [Accepted: 07/16/2017] [Indexed: 01/29/2023] Open
Abstract
Extrusion-based bioprinting (EBB) is a rapidly developing technique that has made substantial progress in the fabrication of constructs for cartilage tissue engineering (CTE) over the past decade. With this technique, cell-laden hydrogels or bio-inks have been extruded onto printing stages, layer-by-layer, to form three-dimensional (3D) constructs with varying sizes, shapes, and resolutions. This paper reviews the cell sources and hydrogels that can be used for bio-ink formulations in CTE application. Additionally, this paper discusses the important properties of bio-inks to be applied in the EBB technique, including biocompatibility, printability, as well as mechanical properties. The printability of a bio-ink is associated with the formation of first layer, ink rheological properties, and crosslinking mechanisms. Further, this paper discusses two bioprinting approaches to build up cartilage constructs, i.e., self-supporting hydrogel bioprinting and hybrid bioprinting, along with their applications in fabricating chondral, osteochondral, and zonally organized cartilage regenerative constructs. Lastly, current limitations and future opportunities of EBB in printing cartilage regenerative constructs are reviewed.
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Affiliation(s)
- Fu You
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N5A9, Canada.
| | - B Frank Eames
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N5A9, Canada.
- Department of Anatomy and Cell Biology, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK S7N 5E5, Canada.
| | - Xiongbiao Chen
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N5A9, Canada.
- Department of Mechanical Engineering, College of Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N5A9, Canada.
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Yang J, Zhang YS, Yue K, Khademhosseini A. Cell-laden hydrogels for osteochondral and cartilage tissue engineering. Acta Biomater 2017; 57:1-25. [PMID: 28088667 PMCID: PMC5545789 DOI: 10.1016/j.actbio.2017.01.036] [Citation(s) in RCA: 394] [Impact Index Per Article: 56.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 12/21/2016] [Accepted: 01/10/2017] [Indexed: 12/11/2022]
Abstract
Despite tremendous advances in the field of regenerative medicine, it still remains challenging to repair the osteochondral interface and full-thickness articular cartilage defects. This inefficiency largely originates from the lack of appropriate tissue-engineered artificial matrices that can replace the damaged regions and promote tissue regeneration. Hydrogels are emerging as a promising class of biomaterials for both soft and hard tissue regeneration. Many critical properties of hydrogels, such as mechanical stiffness, elasticity, water content, bioactivity, and degradation, can be rationally designed and conveniently tuned by proper selection of the material and chemistry. Particularly, advances in the development of cell-laden hydrogels have opened up new possibilities for cell therapy. In this article, we describe the problems encountered in this field and review recent progress in designing cell-hydrogel hybrid constructs for promoting the reestablishment of osteochondral/cartilage tissues. Our focus centers on the effects of hydrogel type, cell type, and growth factor delivery on achieving efficient chondrogenesis and osteogenesis. We give our perspective on developing next-generation matrices with improved physical and biological properties for osteochondral/cartilage tissue engineering. We also highlight recent advances in biomanufacturing technologies (e.g. molding, bioprinting, and assembly) for fabrication of hydrogel-based osteochondral and cartilage constructs with complex compositions and microarchitectures to mimic their native counterparts. STATEMENT OF SIGNIFICANCE Despite tremendous advances in the field of regenerative medicine, it still remains challenging to repair the osteochondral interface and full-thickness articular cartilage defects. This inefficiency largely originates from the lack of appropriate tissue-engineered biomaterials that replace the damaged regions and promote tissue regeneration. Cell-laden hydrogel systems have emerged as a promising tissue-engineering platform to address this issue. In this article, we describe the fundamental problems encountered in this field and review recent progress in designing cell-hydrogel constructs for promoting the reestablishment of osteochondral/cartilage tissues. Our focus centers on the effects of hydrogel composition, cell type, and growth factor delivery on achieving efficient chondrogenesis and osteogenesis. We give our perspective on developing next-generation hydrogel/inorganic particle/stem cell hybrid composites with improved physical and biological properties for osteochondral/cartilage tissue engineering. We also highlight recent advances in biomanufacturing and bioengineering technologies (e.g. 3D bioprinting) for fabrication of hydrogel-based osteochondral and cartilage constructs.
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Affiliation(s)
- Jingzhou Yang
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02115, MA, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Guangzhou Women and Children's Medical Center, Sun Yat-sen University, Guangzhou 510623, Guangdong, People's Republic of China
| | - Yu Shrike Zhang
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02115, MA, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Kan Yue
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02115, MA, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02115, MA, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea; Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia.
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Peng S, Wu CW, Lin JY, Yang CY, Cheng MH, Chu IM. Promoting chondrocyte cell clustering through tuning of a poly(ethylene glycol)-poly(peptide) thermosensitive hydrogel with distinctive microarchitecture. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:181-189. [DOI: 10.1016/j.msec.2017.02.130] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 01/05/2017] [Accepted: 02/24/2017] [Indexed: 01/14/2023]
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Lee JS, Kim BS, Seo D, Park JH, Cho DW. Three-Dimensional Cell Printing of Large-Volume Tissues: Application to Ear Regeneration. Tissue Eng Part C Methods 2017; 23:136-145. [PMID: 28093047 DOI: 10.1089/ten.tec.2016.0362] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The three-dimensional (3D) printing of large-volume cells, printed in a clinically relevant size, is one of the most important challenges in the field of tissue engineering. However, few studies have reported the fabrication of large-volume cell-printed constructs (LCCs). To create LCCs, appropriate fabrication conditions should be established: Factors involved include fabrication time, residence time, and temperature control of the cell-laden hydrogel in the syringe to ensure high cell viability and functionality. The prolonged time required for 3D printing of LCCs can reduce cell viability and result in insufficient functionality of the construct, because the cells are exposed to a harsh environment during the printing process. In this regard, we present an advanced 3D cell-printing system composed of a clean air workstation, a humidifier, and a Peltier system, which provides a suitable printing environment for the production of LCCs with high cell viability. We confirmed that the advanced 3D cell-printing system was capable of providing enhanced printability of hydrogels and fabricating an ear-shaped LCC with high cell viability. In vivo results for the ear-shaped LCC also showed that printed chondrocytes proliferated sufficiently and differentiated into cartilage tissue. Thus, we conclude that the advanced 3D cell-printing system is a versatile tool to create cell-printed constructs for the generation of large-volume tissues.
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Affiliation(s)
- Jung-Seob Lee
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH) , Pohang, Korea
| | - Byoung Soo Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH) , Pohang, Korea
| | - Donghwan Seo
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH) , Pohang, Korea
| | - Jeong Hun Park
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH) , Pohang, Korea
| | - Dong-Woo Cho
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH) , Pohang, Korea
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39
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Costa JB, Oliveira JM, Reis RL. Biomaterials in Meniscus Tissue Engineering. REGENERATIVE STRATEGIES FOR THE TREATMENT OF KNEE JOINT DISABILITIES 2017. [DOI: 10.1007/978-3-319-44785-8_13] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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40
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The direction of human mesenchymal stem cells into the chondrogenic lineage is influenced by the features of hydrogel carriers. Tissue Cell 2016; 49:35-44. [PMID: 28011039 DOI: 10.1016/j.tice.2016.12.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 11/01/2016] [Accepted: 12/12/2016] [Indexed: 01/01/2023]
Abstract
Low back pain is a major public health issue in the Western world, one main cause is believed to be intervertebral disc (IVD) degeneration. To halt/diminish IVD degeneration, cell therapy using different biomaterials e.g. hydrogels as cell carriers has been suggested. In this study, two different hydrogels were examined (in vitro) as potential cell carriers for human mesenchymal stem cells (hMSCs) intended for IVD transplantation. The aim was to investigate cell-survival and chondrogenic differentiation of hMSCs when cultured in hydrogels Puramatrix® or Hydromatrix® and potential effects of stimulation with growth hormone (GH). hMSCs/hydrogel cultures were investigated for cell-viability, attachment, gene expression of chondrogenic markers SOX9, COL2A1, ACAN and accumulation of extracellular matrix (ECM). In both hydrogel types, hMSCs were viable for 28days, expressed integrin β1 which indicates adhesion of hMSCs. Differentiation was observed into chondrocyte-like cells, in a higher extent in hMSCs/Hydromatrix® cultures when compared to hMSCs/Puramatrix® hydrogel cultures. Gene expression analyses of chondrogenic markers verified results. hMSCs/hydrogel cultures stimulated with GH displayed no significant effects on chondrogenesis. In conclusion, both hydrogels, especially Hydromatrix® was demonstrated as a promising cell carrier in vitro for hMSCs, when directed into chondrogenesis. This knowledge could be useful in biological approaches for regeneration of degenerated human IVDs.
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41
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Mačiulaitis J, Rekštytė S, Ūsas A, Jankauskaitė V, Gudas R, Malinauskas M, Mačiulaitis R. Characterization of tissue engineered cartilage products: Recent developments in advanced therapy. Pharmacol Res 2016; 113:823-832. [DOI: 10.1016/j.phrs.2016.02.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 02/23/2016] [Accepted: 02/23/2016] [Indexed: 01/05/2023]
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42
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Hoshi K, Fujihara Y, Mori Y, Asawa Y, Kanazawa S, Nishizawa S, Misawa M, Numano T, Inoue H, Sakamoto T, Watanabe M, Komura M, Takato T. Production of three-dimensional tissue-engineered cartilage through mutual fusion of chondrocyte pellets. Int J Oral Maxillofac Surg 2016; 45:1177-85. [DOI: 10.1016/j.ijom.2016.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Revised: 08/07/2015] [Accepted: 03/02/2016] [Indexed: 10/21/2022]
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43
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Camarero-Espinosa S, Rothen-Rutishauser B, Foster EJ, Weder C. Articular cartilage: from formation to tissue engineering. Biomater Sci 2016; 4:734-67. [PMID: 26923076 DOI: 10.1039/c6bm00068a] [Citation(s) in RCA: 180] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Hyaline cartilage is the nonlinear, inhomogeneous, anisotropic, poro-viscoelastic connective tissue that serves as friction-reducing and load-bearing cushion in synovial joints and is vital for mammalian skeletal movements. Due to its avascular nature, low cell density, low proliferative activity and the tendency of chondrocytes to de-differentiate, cartilage cannot regenerate after injury, wear and tear, or degeneration through common diseases such as osteoarthritis. Therefore severe damage usually requires surgical intervention. Current clinical strategies to generate new tissue include debridement, microfracture, autologous chondrocyte transplantation, and mosaicplasty. While articular cartilage was predicted to be one of the first tissues to be successfully engineered, it proved to be challenging to reproduce the complex architecture and biomechanical properties of the native tissue. Despite significant research efforts, only a limited number of studies have evolved up to the clinical trial stage. This review article summarizes the current state of cartilage tissue engineering in the context of relevant biological aspects, such as the formation and growth of hyaline cartilage, its composition, structure and biomechanical properties. Special attention is given to materials development, scaffold designs, fabrication methods, and template-cell interactions, which are of great importance to the structure and functionality of the engineered tissue.
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Affiliation(s)
- Sandra Camarero-Espinosa
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland.
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44
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Microscale characterization of the viscoelastic properties of hydrogel biomaterials using dual-mode ultrasound elastography. Biomaterials 2016; 88:12-24. [PMID: 26928595 DOI: 10.1016/j.biomaterials.2016.02.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 02/11/2016] [Accepted: 02/16/2016] [Indexed: 01/21/2023]
Abstract
Characterization of the microscale mechanical properties of biomaterials is a key challenge in the field of mechanobiology. Dual-mode ultrasound elastography (DUE) uses high frequency focused ultrasound to induce compression in a sample, combined with interleaved ultrasound imaging to measure the resulting deformation. This technique can be used to non-invasively perform creep testing on hydrogel biomaterials to characterize their viscoelastic properties. DUE was applied to a range of hydrogel constructs consisting of either hydroxyapatite (HA)-doped agarose, HA-collagen, HA-fibrin, or preosteoblast-seeded collagen constructs. DUE provided spatial and temporal mapping of local and bulk displacements and strains at high resolution. Hydrogel materials exhibited characteristic creep behavior, and the maximum strain and residual strain were both material- and concentration-dependent. Burger's viscoelastic model was used to extract characteristic parameters describing material behavior. Increased protein concentration resulted in greater stiffness and viscosity, but did not affect the viscoelastic time constant of acellular constructs. Collagen constructs exhibited significantly higher modulus and viscosity than fibrin constructs. Cell-seeded collagen constructs became stiffer with altered mechanical behavior as they developed over time. Importantly, DUE also provides insight into the spatial variation of viscoelastic properties at sub-millimeter resolution, allowing interrogation of the interior of constructs. DUE presents a novel technique for non-invasively characterizing hydrogel materials at the microscale, and therefore may have unique utility in the study of mechanobiology and the characterization of hydrogel biomaterials.
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45
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Shin H, Lee MN, Choung JS, Kim S, Choi BH, Noh M, Shin JH. Focal Adhesion Assembly Induces Phenotypic Changes and Dedifferentiation in Chondrocytes. J Cell Physiol 2016; 231:1822-31. [PMID: 26661891 DOI: 10.1002/jcp.25290] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 12/10/2015] [Indexed: 01/20/2023]
Abstract
The expansion of autologous chondrocytes in vitro is used to generate sufficient populations for cell-based therapies. However, during monolayer culture, chondrocytes lose inherent characteristics and shift to fibroblast-like cells as passage number increase. Here, we investigated passage-dependent changes in cellular physiology, including cellular morphology, motility, and gene and protein expression, as well as the role of focal adhesion and cytoskeletal regulation in the dedifferentiation process. We found that the gene and protein expression levels of both the focal adhesion complex and small Rho GTPases are upregulated with increasing passage number and are closely linked to chondrocyte dedifferentiation. The inhibition of focal adhesion kinase (FAK) but not small Rho GTPases induced the loss of fibroblastic traits and the recovery of collagen type II, aggrecan, and SOX9 expression levels in dedifferentiated chondrocytes. Based on these findings, we propose a strategy to suppress chondrogenic dedifferentiation by inhibiting the identified FAK or Src pathways while maintaining the expansion capability of chondrocytes in a 2D environment. These results highlight a potential therapeutic target for the treatment of skeletal diseases and the generation of cartilage in tissue-engineering approaches. J. Cell. Physiol. 231: 1822-1831, 2016. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Hyunjun Shin
- Division of Mechanical Engineering, School of Mechanical, Aerospace, and Systems Engineering, Korea Advanced Institute of Science and Technology, Yuseong-gu, Daejeon, Republic of Korea
| | - Mi Nam Lee
- Division of Mechanical Engineering, School of Mechanical, Aerospace, and Systems Engineering, Korea Advanced Institute of Science and Technology, Yuseong-gu, Daejeon, Republic of Korea
| | - Jin Seung Choung
- Division of Mechanical Engineering, School of Mechanical, Aerospace, and Systems Engineering, Korea Advanced Institute of Science and Technology, Yuseong-gu, Daejeon, Republic of Korea
| | - Sanghee Kim
- Department of Mechanical Systems Engineering, Hansung University, Seoul, Republic of Korea
| | - Byung Hyune Choi
- Department of Biomedical Sciences, Inha University College of Medicine, Jung-gu, Incheon, Republic of Korea
| | - Minsoo Noh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Gwanak-gu, Seoul, Republic of Korea
| | - Jennifer H Shin
- Division of Mechanical Engineering, School of Mechanical, Aerospace, and Systems Engineering, Korea Advanced Institute of Science and Technology, Yuseong-gu, Daejeon, Republic of Korea
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Okano T, Sawa Y, Barber E, Umezawa A. Regenerative therapy by fusion of medicine and engineering: First-in-human clinical trials with induced pluripotent stem cells and cell sheet technology: A report of the Symposium of Regenerative Medicine for Patients. Regen Ther 2015; 2:2-5. [PMID: 31245453 PMCID: PMC6581764 DOI: 10.1016/j.reth.2015.07.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Indexed: 01/07/2023] Open
Abstract
The Symposium of Regenerative Medicine for Patients, organized by the Japanese Society for Regenerative Medicine, was held on 28 September 2014 in Tokyo, Japan. The event provided an overview of the important areas of cell-based medicine, and highlighted the first-in-human clinical trial of induced pluripotent stem cell (iPSC)-derived products. Recent advances in regenerative medicine were also discussed, especially regarding the use of somatic cells such as chondrocytes, skeletal myocytes and cardiomyocytes under both the Act on the Safety of Regenerative Medicine, and the Pharmaceuticals, Medical Devices and Other Therapeutic Products Act.
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Affiliation(s)
- Teruo Okano
- Japanese Society of Regenerative Medicine, Tokyo, 112-0012, Japan.,Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, Tokyo, 162-8666, Japan.,Japanese Society of Regenerative Medicine, Tokyo, 112-0012, Japan.,Division of Cardiovascular Surgery, Department of Surgery, Osaka University Graduate School of Medicine, Osaka, 565-0871, Japan.,Department of Education for Clinical Research, National Research Institute for Child Health and Development, Tokyo, 157-8535, Japan.,Japanese Society of Regenerative Medicine, Tokyo, 112-0012, Japan.,Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, 157-8535, Japan
| | - Yoshiki Sawa
- Japanese Society of Regenerative Medicine, Tokyo, 112-0012, Japan.,Division of Cardiovascular Surgery, Department of Surgery, Osaka University Graduate School of Medicine, Osaka, 565-0871, Japan.,Department of Education for Clinical Research, National Research Institute for Child Health and Development, Tokyo, 157-8535, Japan.,Japanese Society of Regenerative Medicine, Tokyo, 112-0012, Japan.,Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, 157-8535, Japan
| | - Emma Barber
- Department of Education for Clinical Research, National Research Institute for Child Health and Development, Tokyo, 157-8535, Japan.,Japanese Society of Regenerative Medicine, Tokyo, 112-0012, Japan.,Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, 157-8535, Japan
| | - Akihiro Umezawa
- Japanese Society of Regenerative Medicine, Tokyo, 112-0012, Japan.,Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, 157-8535, Japan
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47
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Ghiasi M, Kalhor N, Tabatabaei Qomi R, Sheykhhasan M. The effects of synthetic and natural scaffolds on viability and proliferation of adipose-derived stem cells. FRONTIERS IN LIFE SCIENCE 2015. [DOI: 10.1080/21553769.2015.1077477] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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48
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Yang HY, van Ee RJ, Timmer K, Craenmehr EG, Huang JH, Öner FC, Dhert WJ, Kragten AH, Willems N, Grinwis GC, Tryfonidou MA, Papen-Botterhuis NE, Creemers LB. A novel injectable thermoresponsive and cytocompatible gel of poly(N-isopropylacrylamide) with layered double hydroxides facilitates siRNA delivery into chondrocytes in 3D culture. Acta Biomater 2015; 23:214-228. [PMID: 26022968 DOI: 10.1016/j.actbio.2015.05.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 05/14/2015] [Accepted: 05/18/2015] [Indexed: 01/12/2023]
Abstract
Hybrid hydrogels composed of poly(N-isopropylacrylamide) (pNIPAAM) and layered double hydroxides (LDHs) are presented in this study as novel injectable and thermoresponsive materials for siRNA delivery, which could specifically target several negative regulators of tissue homeostasis in cartilaginous tissues. Effectiveness of siRNA transfection using pNIPAAM formulated with either MgAl-LDH or MgFe-LDH platelets was investigated using osteoarthritic chondrocytes. Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) was used as an endogenous model gene to evaluate the extent of silencing. No significant adverse effects of pNIPAAM/LDH hydrogels on cell viability were noticed. Cellular uptake of fluorescently labeled siRNA was greatly enhanced (>75%) in pNIPAAM/LDH hydrogel constructs compared to alginate, hyaluronan and fibrin gels, and was absent in pNIPAAM hydrogel without LDH platelets. When using siRNA against GAPDH, 82-98% reduction of gene expression was found in both types of pNIPAAM/LDH hydrogel constructs after 6 days of culturing. In the pNIPAAM/MgAl-LDH hybrid hydrogel, 80-95% of GAPDH enzyme activity was reduced in parallel with gene. Our findings show that the combination of a cytocompatible hydrogel and therapeutic RNA oligonucleotides is feasible. Thus it might hold promise in treating degeneration of cartilaginous tissues by providing supporting scaffolds for cells and interference with locally produced degenerative factors.
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49
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Comparison of Engineered Peptide-Glycosaminoglycan Microfibrous Hybrid Scaffolds for Potential Applications in Cartilage Tissue Regeneration. FIBERS 2015. [DOI: 10.3390/fib3030265] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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50
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Markstedt K, Mantas A, Tournier I, Martínez Ávila H, Hägg D, Gatenholm P. 3D Bioprinting Human Chondrocytes with Nanocellulose–Alginate Bioink for Cartilage Tissue Engineering Applications. Biomacromolecules 2015; 16:1489-96. [DOI: 10.1021/acs.biomac.5b00188] [Citation(s) in RCA: 993] [Impact Index Per Article: 110.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kajsa Markstedt
- Wallenberg Wood Science Center and ‡Biopolymer Technology, Department of Chemical
and Biological Engineering, Chalmers University of Technology, Gothenburg 412 96, Sweden
| | - Athanasios Mantas
- Wallenberg Wood Science Center and ‡Biopolymer Technology, Department of Chemical
and Biological Engineering, Chalmers University of Technology, Gothenburg 412 96, Sweden
| | - Ivan Tournier
- Wallenberg Wood Science Center and ‡Biopolymer Technology, Department of Chemical
and Biological Engineering, Chalmers University of Technology, Gothenburg 412 96, Sweden
| | - Héctor Martínez Ávila
- Wallenberg Wood Science Center and ‡Biopolymer Technology, Department of Chemical
and Biological Engineering, Chalmers University of Technology, Gothenburg 412 96, Sweden
| | - Daniel Hägg
- Wallenberg Wood Science Center and ‡Biopolymer Technology, Department of Chemical
and Biological Engineering, Chalmers University of Technology, Gothenburg 412 96, Sweden
| | - Paul Gatenholm
- Wallenberg Wood Science Center and ‡Biopolymer Technology, Department of Chemical
and Biological Engineering, Chalmers University of Technology, Gothenburg 412 96, Sweden
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