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Frejo L, Goldstein T, Swami P, Patel NA, Grande DA, Zeltsman D, Smith LP. A two-stage in vivo approach for implanting a 3D printed tissue-engineered tracheal replacement graft: A proof of concept. Int J Pediatr Otorhinolaryngol 2022; 155:111066. [PMID: 35189447 DOI: 10.1016/j.ijporl.2022.111066] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 01/04/2022] [Accepted: 02/12/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To optimize a 3D printed tissue-engineered tracheal construct using a combined in vitro and a two-stage in vivo technique. METHODS A 3D-CAD (Computer-aided Design) template was created; rabbit chondrocytes were harvested and cultured. A Makerbot Replicator™ 2x was used to print a polycaprolactone (PCL) scaffold which was then combined with a bio-ink and the previously harvested chondrocytes. In vitro: Cell viability was performed by live/dead assay using Calcein A/Ethidium. Gene expression was performed using quantitative real-time PCR for the following genes: Collagen Type I and type II, Sox-9, and Aggrecan. In vivo: Surgical implantation occurred in two stages: 1) Index procedure: construct was implanted within a pocket in the strap muscles for 21 days and, 2) Final surgery: construct with vascularized pedicle was rotated into a segmental tracheal defect for 3 or 6 weeks. Following euthanasia, the construct and native trachea were explanted and evaluated. RESULTS In vitro: After 14 days in culture the constructs showed >80% viable cells. Collagen type II and sox-9 were overexpressed in the construct from day 2 and by day 14 all genes were overexpressed when compared to chondrocytes in monolayer. IN VIVO By day 21 (immediately before the rotation), cartilage formation could be seen surrounding all the constructs. Mature cartilage was observed in the grafts after 6 or 9 weeks in vivo. CONCLUSION This two-stage approach for implanting a 3D printed tissue-engineered tracheal replacement construct has been optimized to yield a high-quality, printable segment with cellular growth and viability both in vitro and in vivo.
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Affiliation(s)
- Lidia Frejo
- The Feinstein Institutes for Medical Research, Manhasset, NY, USA; Division of Pediatric Otolaryngology, Steven and Alexandra Cohen Children's Medical Center, New Hyde Park, NY, USA
| | - Todd Goldstein
- The Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Pooja Swami
- The Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Neha A Patel
- Division of Pediatric Otolaryngology, Steven and Alexandra Cohen Children's Medical Center, New Hyde Park, NY, USA; Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Daniel A Grande
- The Feinstein Institutes for Medical Research, Manhasset, NY, USA; Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - David Zeltsman
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA; Division of Thoracic Surgery, Northwell Health, New Hyde Park, NY, USA; Division of Thoracic Surgery, Long Island Jewish Medical Center, New Hyde Park, NY, USA
| | - Lee P Smith
- Division of Pediatric Otolaryngology, Steven and Alexandra Cohen Children's Medical Center, New Hyde Park, NY, USA; Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA.
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Øvrebø Ø, Perale G, Wojciechowski JP, Echalier C, Jeffers JRT, Stevens MM, Haugen HJ, Rossi F. Design and clinical application of injectable hydrogels for musculoskeletal therapy. Bioeng Transl Med 2022; 7:e10295. [PMID: 35600661 PMCID: PMC9115710 DOI: 10.1002/btm2.10295] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 11/25/2022] Open
Abstract
Musculoskeletal defects are an enormous healthcare burden and source of pain and disability for individuals. With an aging population, the proportion of individuals living with these medical indications will increase. Simultaneously, there is pressure on healthcare providers to source efficient solutions, which are cheaper and less invasive than conventional technology. This has led to an increased research focus on hydrogels as highly biocompatible biomaterials that can be delivered through minimally invasive procedures. This review will discuss how hydrogels can be designed for clinical translation, particularly in the context of the new European Medical Device Regulation (MDR). We will then do a deep dive into the clinically used hydrogel solutions that have been commercially approved or have undergone clinical trials in Europe or the United States. We will discuss the therapeutic mechanism and limitations of these products. Due to the vast application areas of hydrogels, this work focuses only on treatments of cartilage, bone, and the nucleus pulposus. Lastly, the main steps toward clinical translation of hydrogels as medical devices are outlined. We suggest a framework for how academics can assist small and medium MedTech enterprises conducting the initial clinical investigation and post‐market clinical follow‐up required in the MDR. It is evident that the successful translation of hydrogels is governed by acquiring high‐quality pre‐clinical and clinical data confirming the device mechanism of action and safety.
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Affiliation(s)
- Øystein Øvrebø
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”Politecnico di MilanoMilanoItaly
- Department of BiomaterialsInstitute of Clinical Dentistry, University of OsloOsloNorway
- Material Biomimetic ASOslo Science ParkOsloNorway
| | - Giuseppe Perale
- Industrie Biomediche Insubri SAMezzovico‐ViraSwitzerland
- Faculty of Biomedical SciencesUniversity of Southern SwitzerlandLuganoSwitzerland
- Ludwig Boltzmann Institute for Experimental and Clinical TraumatologyViennaAustria
| | - Jonathan P. Wojciechowski
- Department of MaterialsImperial College LondonLondonUK
- Department of BioengineeringImperial College LondonLondonUK
- Institute of Biomedical EngineeringImperial College LondonLondonUK
| | - Cécile Echalier
- Department of MaterialsImperial College LondonLondonUK
- Department of BioengineeringImperial College LondonLondonUK
- Institute of Biomedical EngineeringImperial College LondonLondonUK
- Hybrid Technology Hub, Centre of ExcellenceInstitute of Basic Medical Science, University of OsloOsloNorway
| | | | - Molly M. Stevens
- Department of MaterialsImperial College LondonLondonUK
- Department of BioengineeringImperial College LondonLondonUK
- Institute of Biomedical EngineeringImperial College LondonLondonUK
| | - Håvard J. Haugen
- Department of BiomaterialsInstitute of Clinical Dentistry, University of OsloOsloNorway
- Material Biomimetic ASOslo Science ParkOsloNorway
| | - Filippo Rossi
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”Politecnico di MilanoMilanoItaly
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Schreiner MM, Raudner M, Szomolanyi P, Ohel K, Ben-Zur L, Juras V, Mlynarik V, Windhager R, Trattnig S. Chondral and Osteochondral Femoral Cartilage Lesions Treated with GelrinC: Significant Improvement of Radiological Outcome Over Time and Zonal Variation of the Repair Tissue Based on T 2 Mapping at 24 Months. Cartilage 2021; 13:604S-616S. [PMID: 32493044 PMCID: PMC8725372 DOI: 10.1177/1947603520926702] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE To prospectively assess the efficacy of GelrinC in the treatment of chondral and osteochondral femoral cartilage lesions using morphological (Magnetic Resonance Observation of Cartilage Repair Tissue [MOCART]) and quantitative (T2-mapping) magnetic resonance imaging (MRI). DESIGN This study was designed as a prospective single-arm, open label, multicenter study. Morphological magnetic resonance imaging (MRI) for MOCART assessment and T2 mapping was performed 1 week and 6, 12, 18, and 24 months after GelrinC implantation. Evaluation of T2 mapping was based on the assessment of global T2 indices (T2 of the repair tissue [RT] divided by T2 of healthy reference cartilage) and zonal variation. RESULTS Fifty-six (20 female) patients were prospectively enrolled. The mean MOCART score significantly increased from baseline to the 24-month follow-up with 88.8 (95% CI, 85.8-91.9; P < 0.001) for all lesions combined as well as 86.8 (95% CI, 83.0-90.6) for chondral lesions and 94.1 (95% CI, 68.55-100) for osteochondral lesions. Furthermore, based on T2 mapping, significant zonal variation of the RT was observed at 24 months (P = 0.039), which did not differ significantly from healthy reference cartilage (P = 0.6). CONCLUSION Increasing MOCART scores were observed throughout the follow-up period, indicative of maturation of the cartilage repair. Significant zonal variation of the RT at 24 months might indicate the transformation into hyaline cartilage-like RT. Slightly differing morphological outcome between chondral and osteochondral lesions, but similar global and zonal T2 indices at 24 months, support the potential of GelrinC as a treatment option for both lesion types.
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Affiliation(s)
- Markus M. Schreiner
- Department of Orthopedics and Trauma
Surgery, Medical University of Vienna, Vienna, Austria
| | - Marcus Raudner
- High Field MR Center, Department of
Biomedical Imaging and Image-Guided Therapy, CD Laboratory for Clinical Molecular MR
Imaging, Medical University of Vienna, Vienna, Austria
| | - Pavol Szomolanyi
- High Field MR Center, Department of
Biomedical Imaging and Image-Guided Therapy, CD Laboratory for Clinical Molecular MR
Imaging, Medical University of Vienna, Vienna, Austria
| | - Kitty Ohel
- Regentis Biomaterials Ltd., Or Akiva,
Israel
| | | | - Vladimir Juras
- High Field MR Center, Department of
Biomedical Imaging and Image-Guided Therapy, CD Laboratory for Clinical Molecular MR
Imaging, Medical University of Vienna, Vienna, Austria
| | - Vladimir Mlynarik
- High Field MR Center, Department of
Biomedical Imaging and Image-Guided Therapy, CD Laboratory for Clinical Molecular MR
Imaging, Medical University of Vienna, Vienna, Austria
| | - Reinhard Windhager
- Department of Orthopedics and Trauma
Surgery, Medical University of Vienna, Vienna, Austria
| | - Siegfried Trattnig
- High Field MR Center, Department of
Biomedical Imaging and Image-Guided Therapy, CD Laboratory for Clinical Molecular MR
Imaging, Medical University of Vienna, Vienna, Austria,Siegfried Trattnig, High Field MR Centre,
Department of Biomedical Imaging and Image-Guided Therapy, CD Laboratory for
Clinical Molecular MR Imaging, Medical University of Vienna, Waehringer Guertel
18-20, Vienna, 1090 Vienna, Austria.
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Combinations of Hydrogels and Mesenchymal Stromal Cells (MSCs) for Cartilage Tissue Engineering-A Review of the Literature. Gels 2021; 7:gels7040217. [PMID: 34842678 PMCID: PMC8628761 DOI: 10.3390/gels7040217] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/11/2021] [Accepted: 11/13/2021] [Indexed: 01/17/2023] Open
Abstract
Cartilage offers limited regenerative capacity. Cell-based approaches have emerged as a promising alternative in the treatment of cartilage defects and osteoarthritis. Due to their easy accessibility, abundancy, and chondrogenic potential mesenchymal stromal cells (MSCs) offer an attractive cell source. MSCs are often combined with natural or synthetic hydrogels providing tunable biocompatibility, biodegradability, and enhanced cell functionality. In this review, we focused on the different advantages and disadvantages of various natural, synthetic, and modified hydrogels. We examined the different combinations of MSC-subpopulations and hydrogels used for cartilage engineering in preclinical and clinical studies and reviewed the effects of added growth factors or gene transfer on chondrogenesis in MSC-laden hydrogels. The aim of this review is to add to the understanding of the disadvantages and advantages of various combinations of MSC-subpopulations, growth factors, gene transfers, and hydrogels in cartilage engineering.
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5
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Ebhodaghe SO. Natural Polymeric Scaffolds for Tissue Engineering Applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 32:2144-2194. [PMID: 34328068 DOI: 10.1080/09205063.2021.1958185] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Natural polymeric scaffolds can be used for tissue engineering applications such as cell delivery and cell-free supporting of native tissues. This is because of their desirable properties such as; high biocompatibility, tunable mechanical strength and conductivity, large surface area, porous- and extracellular matrix (ECM)-mimicked structures. Specifically, their less toxicity and biocompatibility makes them suitable for several tissue engineering applications. For these reasons, several biopolymeric scaffolds are currently being explored for numerous tissue engineering applications. To date, research on the nature, chemistry, and properties of nanocomposite biopolymers are been reported, while the need for a comprehensive research note on more tissue engineering application of these biopolymers remains. As a result, this present study comprehensively reviews the development of common natural biopolymers as scaffolds for tissue engineering applications such as cartilage tissue engineering, cornea repairs, osteochondral defect repairs, and nerve regeneration. More so, the implications of research findings for further studies are presented, while the impact of research advances on future research and other specific recommendations are added as well.
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Shah SS, Lee S, Mithoefer K. Next-Generation Marrow Stimulation Technology for Cartilage Repair: Basic Science to Clinical Application. JBJS Rev 2021; 9:e20.00090. [PMID: 33512974 DOI: 10.2106/jbjs.rvw.20.00090] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
» Given the relatively high prevalence of full-thickness articular cartilage lesions, including in patients who are <40 years of age, and an inability to detect some of these lesions until the time of arthroscopy, there is value in performing a single-stage cartilage procedure such as marrow stimulation (MS). » While the positive outcomes of first-generation MS (namely microfracture) have been observed to drop off after 24 months in several studies, improvements have been seen when compared with preoperative conditions for lesions that are 2 to 3 cm2 in size, and MS is considered to be a procedure with technical simplicity, fairly short surgical times, and relatively low morbidity. A recent study showed that autologous chondrocyte implantation (ACI) and osteochondral allograft (OCA) transplantation remain viable treatment options for chondral defects of the knee in the setting of failed MS. » Basic science principles that have been elucidated in recent years include (1) the creation of vertical walls during defect preparation, (2) an increased depth of subchondral penetration, (3) a smaller awl diameter, and (4) an increased number of subchondral perforations, which are all thought to help resolve issues of access to the mesenchymal stromal cells (MSCs) and the subchondral bone structure/overgrowth issues. » Pioneering and evolving basic science and clinical studies have led to next-generation clinical applications, such as a hyaluronic acid-based scaffold (ongoing randomized controlled trial [RCT]), an atelocollagen-based gel (as described in a recently published RCT), a micronized allogeneic cartilage scaffold (as described in a recently completed prospective cohort study), and a biosynthetic hydrogel that is composed of polyethylene glycol (PEG) diacrylate and denatured fibrinogen (as described in an ongoing prospective study). » This review summarizes important points for defect preparation and the recent advances in MS techniques and identifies specific scaffolding augmentation strategies (e.g., mesenchymal augmentation and scaffold stimulation [MASS]) that have the capacity to advance cartilage regeneration in light of recent laboratory and clinical studies.
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Affiliation(s)
- Sarav S Shah
- Division of Sports Medicine, Department of Orthopaedic Surgery, New England Baptist Hospital, Boston, Massachusetts
| | - Sonia Lee
- Department of Orthopaedic Surgery, Tufts University School of Medicine, Boston, Massachusetts
| | - Kai Mithoefer
- Department of Orthopedics and Sports Medicine, Harvard Vanguard Medical Associates, Boston, Massachusetts
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7
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Deng Z, Jin J, Wang S, Qi F, Chen X, Liu C, Li Y, Ma Y, Lyu F, Zheng Q. Narrative review of the choices of stem cell sources and hydrogels for cartilage tissue engineering. ANNALS OF TRANSLATIONAL MEDICINE 2021; 8:1598. [PMID: 33437797 PMCID: PMC7791208 DOI: 10.21037/atm-20-2342] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Stem cell-based therapy is a promising treatment for cartilage defects due to the pluripotency, abundant sources and low immunogenicity of stem cells. Hydrogels are a promising class of biomaterials for cartilage engineering and are characterized by bioactivity, degradability and elasticity as well as provide water content and mechanical support. The combination of stem cells and hydrogels opens new possibilities for cartilage tissue engineering. However, the selection of suitable types of stem cells and hydrogels is difficult. Currently, various types of stem cells, such as embryonic stem cells (ESCs), mesenchymal stem cells (MSCs), induced pluripotent stem cells (iPSCs), and peripheral blood mononuclear cells (PBMSCs), and various types of hydrogels, including natural polymers, chemically modified natural polymers and synthetic polymers, have been explored based on their potential for cartilage tissue engineering. These materials are used independently or in combination; however, there is no clear understanding of their merits and disadvantages with regard to their suitability for cartilage repair. In this article, we aim to review recent progress in the use of stem cell-hydrogel hybrid constructs for cartilage tissue engineering. We focus on the effects of stem cell types and hydrogel types on efficient chondrogenesis from cellular, preclinical and clinical perspectives. We compare and analyze the advantages and disadvantages of these cells and hydrogels with the hope of increasing discussion of their suitability for cartilage repair and present our perspective on their use for the improvement of physical and biological properties for cartilage tissue engineering.
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Affiliation(s)
- Zhantao Deng
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jiewen Jin
- Department of Endocrinology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shuai Wang
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Fangjie Qi
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xuepan Chen
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Chang Liu
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yanbing Li
- Department of Endocrinology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yuanchen Ma
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Fengjuan Lyu
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,South China University of Technology-the University of Western Australia Joint Center for Regenerative Medicine Research, School of Medicine, South China University of Technology, Guangzhou, China
| | - Qiujian Zheng
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
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Yosef A, Kossover O, Mironi‐Harpaz I, Mauretti A, Melino S, Mizrahi J, Seliktar D. Fibrinogen-Based Hydrogel Modulus and Ligand Density Effects on Cell Morphogenesis in Two-Dimensional and Three-Dimensional Cell Cultures. Adv Healthc Mater 2019; 8:e1801436. [PMID: 31081289 DOI: 10.1002/adhm.201801436] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 03/08/2019] [Indexed: 12/15/2022]
Abstract
There is a need to further explore the convergence of mechanobiology and dimensionality with systematic investigations of cellular response to matrix mechanics in 2D and 3D cultures. Here, a semisynthetic hydrogel capable of supporting both 2D and 3D cell culture is applied to investigate cell response to matrix modulus and ligand density. The culture materials are fabricated from adducts of polyethylene glycol (PEG) or PluronicF127 and fibrinogen fragments, formed into hydrogels by free-radical polymerization, and characterized by shear rheology. Control over the modulus of the materials is accomplished by changing the concentration of synthetic PEG-diacrylate crosslinker (0.5% w/v), and by altering the molecular length of the PEG (10 and 20 kDa). Control over ligand density is accomplished by changing fibrinogen concentrations from 3 to 12 mg mL-1 . In 2D culture, cell motility parameters, including cell speed and persistence time are significantly increased with increasing modulus. In both 2D and 3D culture, cells express vinculin and there is evidence of focal adhesion formation in the high stiffness materials. The modulus- and ligand-dependent morphogenesis response from the cells in 2D culture is contradictory to the same measured response in 3D culture. In 2D culture, anchorage-dependent cells become more elongated and significantly increase their size with increasing ligand density and matrix modulus. In 3D culture, the same anchorage-dependent cells become less spindled and significantly reduce their size in response to increasing ligand density and matrix modulus. These differences arise from dimensionality constraints, most notably the encapsulation of cells in a non-porous hydrogel matrix. These insights underscore the importance of mechanical properties in regulating cell morphogenesis in a 3D culture milieu. The versatility of the hydrogel culture environment further highlights the significance of a modular approach when developing materials that aim to optimize the cell culture environment.
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Affiliation(s)
- Andrei Yosef
- Faculty of Biomedical EngineeringTechnion—Israel Institute of Technology Haifa 32000 Israel
| | - Olga Kossover
- Faculty of Biomedical EngineeringTechnion—Israel Institute of Technology Haifa 32000 Israel
| | - Iris Mironi‐Harpaz
- Faculty of Biomedical EngineeringTechnion—Israel Institute of Technology Haifa 32000 Israel
| | - Arianna Mauretti
- Department of Chemical Sciences and TechnologiesUniversity of Rome “Tor Vergata” Via della Ricerca Scientifica 1 00133 Rome Italy
| | - Sonia Melino
- Department of Chemical Sciences and TechnologiesUniversity of Rome “Tor Vergata” Via della Ricerca Scientifica 1 00133 Rome Italy
- CIMER Center of Regenerative MedicineTor Vergata Via della Ricerca Scientifica 00133 Rome Italy
| | - Joseph Mizrahi
- Faculty of Biomedical EngineeringTechnion—Israel Institute of Technology Haifa 32000 Israel
| | - Dror Seliktar
- Faculty of Biomedical EngineeringTechnion—Israel Institute of Technology Haifa 32000 Israel
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9
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Bai M, Yin H, Zhao J, Li Y, Wu Y. miR-182-5p overexpression inhibits chondrogenesis by down-regulating PTHLH. Cell Biol Int 2019; 43:222-232. [PMID: 30095215 DOI: 10.1002/cbin.11047] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 08/05/2018] [Indexed: 12/21/2022]
Abstract
Human bone marrow mesenchymal stem cells (hBM-MSC) have the ability of differentiating into chondrocytes and osteoblasts. miR-182-5p promotes osteoclastogenesis and bone metastasis by up-regulating the expression of parathyroid hormone-like hormone (PTHLH). However, the function of miR-182-5p in chondrogenesis is still unknown. Mimic or inhibitor of miR-182-5p was used to upregulate or knock-down miR-182-5p expression, respectively. We analyzed chondrogenesis by Safranin O staining and Blyscan™ Sulfated Glycosaminoglycan Assay. Immunohistochemistry, real-time PCR, and Western bolts were used to detect related makers. miR-182-5p overexpression inhibited chondrogenesis. Dual-luciferase reporter assay indicated that PTHLH was one of the target genes of miR-182-5p. Further studies showed that miR-182-5p overexpression down-regulated the expression of SOX-9 and COL2A1, but up-regulated COL1A1 and COL10A1. Consistently, miR-182-5p knock-down had the opposite effects. This effect of miR-182-5p in BM-MSCs can be rescued by PTHLH overexpression. miR-182-5p may play a negative role in chondrogenesis by down-regulating PTHLH.
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Affiliation(s)
- Ming Bai
- Department of Minimally Invasive Spine Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, NO 1, Yingfang Road, Hohhot, Inner Mongolia 010000, P. R. China
| | - Heping Yin
- Department of Minimally Invasive Spine Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, NO 1, Yingfang Road, Hohhot, Inner Mongolia 010000, P. R. China
| | - Jian Zhao
- Department of Minimally Invasive Spine Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, NO 1, Yingfang Road, Hohhot, Inner Mongolia 010000, P. R. China
| | - Yang Li
- Department of Minimally Invasive Spine Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, NO 1, Yingfang Road, Hohhot, Inner Mongolia 010000, P. R. China
| | - Yimin Wu
- Department of Minimally Invasive Spine Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, NO 1, Yingfang Road, Hohhot, Inner Mongolia 010000, P. R. China
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10
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Huang X, Das R, Patel A, Nguyen TD. Physical Stimulations for Bone and Cartilage Regeneration. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2018; 4:216-237. [PMID: 30740512 PMCID: PMC6366645 DOI: 10.1007/s40883-018-0064-0] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 06/07/2018] [Indexed: 12/26/2022]
Abstract
A wide range of techniques and methods are actively invented by clinicians and scientists who are dedicated to the field of musculoskeletal tissue regeneration. Biological, chemical, and physiological factors, which play key roles in musculoskeletal tissue development, have been extensively explored. However, physical stimulation is increasingly showing extreme importance in the processes of osteogenic and chondrogenic differentiation, proliferation and maturation through defined dose parameters including mode, frequency, magnitude, and duration of stimuli. Studies have shown manipulation of physical microenvironment is an indispensable strategy for the repair and regeneration of bone and cartilage, and biophysical cues could profoundly promote their regeneration. In this article, we review recent literature on utilization of physical stimulation, such as mechanical forces (cyclic strain, fluid shear stress, etc.), electrical and magnetic fields, ultrasound, shock waves, substrate stimuli, etc., to promote the repair and regeneration of bone and cartilage tissue. Emphasis is placed on the mechanism of cellular response and the potential clinical usage of these stimulations for bone and cartilage regeneration.
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11
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Ruvinov E, Tavor Re'em T, Witte F, Cohen S. Articular cartilage regeneration using acellular bioactive affinity-binding alginate hydrogel: A 6-month study in a mini-pig model of osteochondral defects. J Orthop Translat 2018; 16:40-52. [PMID: 30723680 PMCID: PMC6350049 DOI: 10.1016/j.jot.2018.08.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 08/08/2018] [Accepted: 08/15/2018] [Indexed: 12/20/2022] Open
Abstract
Background Despite intensive research, regeneration of articular cartilage largely remains an unresolved medical concern as the clinically available modalities still suffer from long-term inconsistent data, relatively high failure rates and high prices of more promising approaches, such as cell therapy. In the present study, we aimed to evaluate the feasibility and long-term efficacy of a bilayered injectable acellular affinity-binding alginate hydrogel in a large animal model of osteochondral defects. Methods The affinity-binding alginate hydrogel is designed for presentation and slow release of chondrogenic and osteogenic inducers (transforming growth factor-β1 and bone morphogenic protein 4, respectively) in two distinct and separate hydrogel layers. The hydrogel was injected into the osteochondral defects created in the femoral medial condyle in mini-pigs, and various outcomes were evaluated after 6 months. Results Macroscopical and histological assessment of the defects treated with growth factor affinity-bound hydrogel showed effective reconstruction of articular cartilage layer, with major features of hyaline tissue, such as a glossy surface and cellular organisation, associated with marked deposition of proteoglycans and type II collagen. Microcomputed tomography showed incomplete bone formation in both treatment groups, which was nevertheless augmented by the presence of affinity-bound growth factors. Importantly, the physical nature of the applied hydrogel ensured its shear resistance, seamless integration and topographical matching to the surroundings and opposing articulating surface. Conclusions The treatment with acellular injectable growth factor-loaded affinity-binding alginate hydrogel resulted in effective tissue restoration with major hallmarks of hyaline cartilage, shown in large animal model after 6-month follow-up. The translational potential of this article This proof-of-concept study in a clinically relevant large animal model showed promising potential of an injectable acellular growth factor-loaded affinity-binding alginate hydrogel for effective repair and regeneration of articular hyaline cartilage, representing a strong candidate for future clinical development.
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Affiliation(s)
- Emil Ruvinov
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Tali Tavor Re'em
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Frank Witte
- Julius Wolff Institute and Center for Musculoskeletal Surgery, Berlin-Brandenburg Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Smadar Cohen
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel.,Regenerative Medicine and Stem Cell (RMSC) Research Center, Ben-Gurion University of the Negev, Beer Sheva, Israel.,The Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer Sheva, Israel
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12
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Leach JK, Whitehead J. Materials-Directed Differentiation of Mesenchymal Stem Cells for Tissue Engineering and Regeneration. ACS Biomater Sci Eng 2018; 4:1115-1127. [PMID: 30035212 PMCID: PMC6052883 DOI: 10.1021/acsbiomaterials.6b00741] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Cell-based therapies are a promising alternative to grafts and organ transplantation for treating tissue loss or damage due to trauma, malfunction, or disease. Over the past two decades, mesenchymal stem cells (MSCs) have attracted much attention as a potential cell population for use in regenerative medicine. While the proliferative capacity and multilineage potential of MSCs provide an opportunity to generate clinically relevant numbers of transplantable cells, their use in tissue regenerative applications has met with relatively limited success to date apart from secreting paracrine-acting factors to modulate the defect microenvironment. Presently, there is significant effort to engineer the biophysical properties of biomaterials to direct MSC differentiation and further expand on the potential of MSCs in tissue engineering, regeneration, and repair. Biomaterials can dictate MSC differentiation by modulating features of the substrate including composition, mechanical properties, porosity, and topography. The purpose of this review is to highlight recent approaches for guiding MSC fate using biomaterials and provide a description of the underlying characteristics that promote differentiation toward a desired phenotype.
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Affiliation(s)
- J. Kent Leach
- Department of Biomedical Engineering, University of California, Davis, Davis, CA 95616
- Department of Orthopaedic Surgery, School of Medicine, UC Davis Medical Center, Sacramento, C 95817
| | - Jacklyn Whitehead
- Department of Biomedical Engineering, University of California, Davis, Davis, CA 95616
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13
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Pradhan S, Smith AM, Garson CJ, Hassani I, Seeto WJ, Pant K, Arnold RD, Prabhakarpandian B, Lipke EA. A Microvascularized Tumor-mimetic Platform for Assessing Anti-cancer Drug Efficacy. Sci Rep 2018; 8:3171. [PMID: 29453454 PMCID: PMC5816595 DOI: 10.1038/s41598-018-21075-9] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 12/20/2017] [Indexed: 12/21/2022] Open
Abstract
Assessment of anti-cancer drug efficacy in in vitro three-dimensional (3D) bioengineered cancer models provides important contextual and relevant information towards pre-clinical translation of potential drug candidates. However, currently established models fail to sufficiently recapitulate complex tumor heterogeneity. Here we present a chip-based tumor-mimetic platform incorporating a 3D in vitro breast cancer model with a tumor-mimetic microvascular network, replicating the pathophysiological architecture of native vascularized breast tumors. The microfluidic platform facilitated formation of mature, lumenized and flow-aligned endothelium under physiological flow recapitulating both high and low perfused tumor regions. Metastatic and non-metastatic breast cancer cells were maintained in long-term 3D co-culture with stromal fibroblasts in a poly(ethylene glycol)-fibrinogen hydrogel matrix within adjoining tissue chambers. The interstitial space between the chambers and endothelium contained pores to mimic the “leaky” vasculature found in vivo and facilitate cancer cell-endothelial cell communication. Microvascular pattern-dependent flow variations induced concentration gradients within the 3D tumor mass, leading to morphological tumor heterogeneity. Anti-cancer drugs displayed cell type- and flow pattern-dependent effects on cancer cell viability, viable tumor area and associated endothelial cytotoxicity. Overall, the developed microfluidic tumor-mimetic platform facilitates investigation of cancer-stromal-endothelial interactions and highlights the role of a fluidic, tumor-mimetic vascular network on anti-cancer drug delivery and efficacy for improved translation towards pre-clinical studies.
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Affiliation(s)
- Shantanu Pradhan
- Department of Chemical Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Ashley M Smith
- Biomedical Technology, CFD Research Corporation, Huntsville, AL, 35806, USA
| | - Charles J Garson
- Biomedical Technology, CFD Research Corporation, Huntsville, AL, 35806, USA
| | - Iman Hassani
- Department of Chemical Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Wen J Seeto
- Department of Chemical Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Kapil Pant
- Biomedical Technology, CFD Research Corporation, Huntsville, AL, 35806, USA
| | - Robert D Arnold
- Department of Drug Discovery and Development, Auburn University, Auburn, AL, 36849, USA
| | | | - Elizabeth A Lipke
- Department of Chemical Engineering, Auburn University, Auburn, AL, 36849, USA.
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14
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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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15
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Hiemer B, Genz B, Jonitz-Heincke A, Pasold J, Wree A, Dommerich S, Bader R. Devitalisation of human cartilage by high hydrostatic pressure treatment: Subsequent cultivation of chondrocytes and mesenchymal stem cells on the devitalised tissue. Sci Rep 2016; 6:33747. [PMID: 27671122 PMCID: PMC5037397 DOI: 10.1038/srep33747] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 08/31/2016] [Indexed: 01/08/2023] Open
Abstract
The regeneration of cartilage lesions still represents a major challenge. Cartilage has a tissue-specific architecture, complicating recreation by synthetic biomaterials. A novel approach for reconstruction is the use of devitalised cartilage. Treatment with high hydrostatic pressure (HHP) achieves devitalisation while biomechanical properties are remained. Therefore, in the present study, cartilage was devitalised using HHP treatment and the potential for revitalisation with chondrocytes and mesenchymal stem cells (MSCs) was investigated. The devitalisation of cartilage was performed by application of 480 MPa over 10 minutes. Effective cellular inactivation was demonstrated by the trypan blue exclusion test and DNA quantification. Histology and electron microscopy examinations showed undamaged cartilage structure after HHP treatment. For revitalisation chondrocytes and MSCs were cultured on devitalised cartilage without supplementation of chondrogenic growth factors. Both chondrocytes and MSCs significantly increased expression of cartilage-specific genes. ECM stainings showed neocartilage-like structure with positive AZAN staining as well as collagen type II and aggrecan deposition after three weeks of cultivation. Our results showed that HHP treatment caused devitalisation of cartilage tissue. ECM proteins were not influenced, thus, providing a scaffold for chondrogenic differentiation of MSCs and chondrocytes. Therefore, using HHP-treated tissue might be a promising approach for cartilage repair.
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Affiliation(s)
- B. Hiemer
- Rostock University Medical Center, Department of Orthopaedics, Biomechanics and Implant Technology Research Laboratory, Doberaner Strasse 142, 18057 Rostock, Germany
| | - B. Genz
- Rostock University Medical Center, Department of Otorhinolaryngology, Doberaner Strasse 137–139, 18057 Rostock, Germany
| | - A. Jonitz-Heincke
- Rostock University Medical Center, Department of Orthopaedics, Biomechanics and Implant Technology Research Laboratory, Doberaner Strasse 142, 18057 Rostock, Germany
| | - J. Pasold
- Rostock University Medical Center, Department of Orthopaedics, Biomechanics and Implant Technology Research Laboratory, Doberaner Strasse 142, 18057 Rostock, Germany
| | - A. Wree
- Rostock University Medical Center, Department of Anatomy, Gertrudenstraße 9, 18057 Rostock, Germany
| | - S. Dommerich
- Charité Berlin University Medical Center, Department of Otorhinolaryngology, Chariteplatz 1, 10117 Berlin, Germany
| | - R. Bader
- Rostock University Medical Center, Department of Orthopaedics, Biomechanics and Implant Technology Research Laboratory, Doberaner Strasse 142, 18057 Rostock, Germany
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16
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Chen M, Xu L, Zhou Y, Zhang Y, Lang M, Ye Z, Tan WS. Poly(ε-caprolactone)-based substrates bearing pendant small chemical groups as a platform for systemic investigation of chondrogenesis. Cell Prolif 2016; 49:512-22. [PMID: 27364032 DOI: 10.1111/cpr.12272] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 06/01/2016] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES Physiochemical properties of biomaterials play critical roles in dictating types of cell behaviour. In this study, a series of poly(ε-caprolactone) (PCL)-derived polymers bearing different small chemical groups was employed as a platform to evaluate chondrogenesis of different cell types. MATERIALS AND METHODS Thin films were prepared by spin-coating PCL derivatives. Rabbit articular chondrocytes (rACs) and rabbit bone marrow-derived mesenchymal stem cells (rMSCs) were seeded on to the films, and cell adhesion, proliferation, extracellular matrix production and gene expression were evaluated. RESULTS The presence of hydrophilic groups (-NH2 , -COOH, -OH and -C=O) promoted adhesion and proliferation of primary rACs and rMSCs. On these polymeric films, chondrogenesis of primary rACs depended on culture time. For passaged cells, re-differentiation was induced on these films by chondrogenic induction, but less for cells of passage 5 compared to passage 3. While films with hydrophilic groups favoured chondrocytic gene expression of both types of passaged cells, production of glycosaminoglycans (GAG) was similar for those of passage 3 on all films, and PCL-CH3 film better supported GAG production for cells of passage 5. Under chondrogenic conditions, rMSCs were more efficient at GAG production on PCL and PCL-NH2 films. CONCLUSIONS This study demonstrates that different cells displayed distinct responses to substrate surface chemistry, implying that cell-biomaterial interactions can be developmental stage dependent. This provides a novel perspective for developing biomaterials for cartilage regeneration.
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Affiliation(s)
- Min Chen
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Lei Xu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Yan Zhou
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Yan Zhang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
| | - Meidong Lang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
| | - Zhaoyang Ye
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Wen-Song Tan
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
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17
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Jeuken RM, Roth AK, Peters RJRW, Van Donkelaar CC, Thies JC, Van Rhijn LW, Emans PJ. Polymers in Cartilage Defect Repair of the Knee: Current Status and Future Prospects. Polymers (Basel) 2016; 8:E219. [PMID: 30979313 PMCID: PMC6432241 DOI: 10.3390/polym8060219] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/26/2016] [Accepted: 05/31/2016] [Indexed: 02/06/2023] Open
Abstract
Cartilage defects in the knee are often seen in young and active patients. There is a need for effective joint preserving treatments in patients suffering from cartilage defects, as untreated defects often lead to osteoarthritis. Within the last two decades, tissue engineering based techniques using a wide variety of polymers, cell sources, and signaling molecules have been evaluated. We start this review with basic background information on cartilage structure, its intrinsic repair, and an overview of the cartilage repair treatments from a historical perspective. Next, we thoroughly discuss polymer construct components and their current use in commercially available constructs. Finally, we provide an in-depth discussion about construct considerations such as degradation rates, cell sources, mechanical properties, joint homeostasis, and non-degradable/hybrid resurfacing techniques. As future prospects in cartilage repair, we foresee developments in three areas: first, further optimization of degradable scaffolds towards more biomimetic grafts and improved joint environment. Second, we predict that patient-specific non-degradable resurfacing implants will become increasingly applied and will provide a feasible treatment for older patients or failed regenerative treatments. Third, we foresee an increase of interest in hybrid construct, which combines degradable with non-degradable materials.
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Affiliation(s)
- Ralph M Jeuken
- Department of Orthopaedic Surgery, Maastricht University Medical Center, P. Debyelaan 25, Maastricht 6229 HX, The Netherlands.
| | - Alex K Roth
- Department of Orthopaedic Surgery, Maastricht University Medical Center, P. Debyelaan 25, Maastricht 6229 HX, The Netherlands.
| | | | - Corrinus C Van Donkelaar
- Department of Biomedical Engineering, Eindhoven University of Technology, P.O. Box 513, Eindhoven 5600 MB, The Netherlands.
| | - Jens C Thies
- DSM Biomedical, Koestraat 1, Geleen 6167 RA, The Netherlands.
| | - Lodewijk W Van Rhijn
- Department of Orthopaedic Surgery, Maastricht University Medical Center, P. Debyelaan 25, Maastricht 6229 HX, The Netherlands.
| | - Pieter J Emans
- Department of Orthopaedic Surgery, Maastricht University Medical Center, P. Debyelaan 25, Maastricht 6229 HX, The Netherlands.
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18
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Rodrigues MN, Oliveira MB, Costa RR, Mano JF. Chitosan/Chondroitin Sulfate Membranes Produced by Polyelectrolyte Complexation for Cartilage Engineering. Biomacromolecules 2016; 17:2178-88. [DOI: 10.1021/acs.biomac.6b00399] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mariana N. Rodrigues
- 3B’s
Research Group, Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of
the European Institute of Excellence of Tissue Engineering and Regenerative
Medicine, Avepark − Parque de
Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s,
PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - Mariana B. Oliveira
- 3B’s
Research Group, Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of
the European Institute of Excellence of Tissue Engineering and Regenerative
Medicine, Avepark − Parque de
Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s,
PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - Rui R. Costa
- 3B’s
Research Group, Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of
the European Institute of Excellence of Tissue Engineering and Regenerative
Medicine, Avepark − Parque de
Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s,
PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - João F. Mano
- 3B’s
Research Group, Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of
the European Institute of Excellence of Tissue Engineering and Regenerative
Medicine, Avepark − Parque de
Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s,
PT Government Associated Laboratory, Braga/Guimarães, Portugal
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