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Zhou H, Zhang Z, Mu Y, Yao H, Zhang Y, Wang DA. Harnessing Nanomedicine for Cartilage Repair: Design Considerations and Recent Advances in Biomaterials. ACS NANO 2024; 18:10667-10687. [PMID: 38592060 DOI: 10.1021/acsnano.4c00780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Cartilage injuries are escalating worldwide, particularly in aging society. Given its limited self-healing ability, the repair and regeneration of damaged articular cartilage remain formidable challenges. To address this issue, nanomaterials are leveraged to achieve desirable repair outcomes by enhancing mechanical properties, optimizing drug loading and bioavailability, enabling site-specific and targeted delivery, and orchestrating cell activities at the nanoscale. This review presents a comprehensive survey of recent research in nanomedicine for cartilage repair, with a primary focus on biomaterial design considerations and recent advances. The review commences with an introductory overview of the intricate cartilage microenvironment and further delves into key biomaterial design parameters crucial for treating cartilage damage, including microstructure, surface charge, and active targeting. The focal point of this review lies in recent advances in nano drug delivery systems and nanotechnology-enabled 3D matrices for cartilage repair. We discuss the compositions and properties of these nanomaterials and elucidate how these materials impact the regeneration of damaged cartilage. This review underscores the pivotal role of nanotechnology in improving the efficacy of biomaterials utilized for the treatment of cartilage damage.
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Affiliation(s)
- Huiqun Zhou
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, China
| | - Zhen Zhang
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, China
| | - Yulei Mu
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, China
| | - Hang Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Yi Zhang
- School of Integrated Circuit Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Dong-An Wang
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, China
- Center for Neuromusculoskeletal Restorative Medicine, InnoHK, HKSTP, Sha Tin, Hong Kong SAR 999077, China
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2
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Rogan H, Ilagan F, Yang F. Comparing Single Cell Versus Pellet Encapsulation of Mesenchymal Stem Cells in Three-Dimensional Hydrogels for Cartilage Regeneration. Tissue Eng Part A 2019; 25:1404-1412. [PMID: 30672386 DOI: 10.1089/ten.tea.2018.0289] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
While the gold standard for inducing mesenchymal stem cell (MSC) chondrogenesis utilizes pellet culture, most tissue engineering strategies for cartilage regeneration encapsulate MSCs as single cells, partially due to the technical challenge to homogeneously encapsulate cell pellets in three-dimensional (3D) hydrogels. It remains unclear whether encapsulating MSCs as single cell suspension or cell aggregates in 3D hydrogels would enhance MSC-based cartilage formation. In this study, we determined that the optimal size of MSC micropellets (μPellets) that can be homogeneously encapsulated in hydrogels with high cell viability is 100 cells/pellet. Using optimized μPellet size, MSCs were encapsulated either as single cell suspension or μPellets in four soft hydrogel formulations with stiffness ranging 3-6 kPa. Regardless of hydrogel formulations, single cell encapsulation resulted in more neocartilage deposition with improved mechanical functions over μPellet encapsulation. For single cell encapsulation, polyethylene glycol (PEG) hydrogels containing chondroitin sulfate led to the most cartilage matrix deposition, with compressive modulus reaching 211 kPa after only 21 days, a range approaching the stiffness of native cartilage. The findings from this study offer valuable insights on guiding optimal method design for MSCs and hydrogel-based cartilage regeneration. The optimized μPellet encapsulation method may be broadly applicable to encapsulate other stem cell types or cancer cells as aggregates in hydrogels. Impact Statement While the gold standard for inducing mesenchymal stem cell (MSC) chondrogenesis utilizes pellet culture, it remains unclear whether encapsulating MSCs as cell pellets in three-dimensional hydrogels would enhance MSC-based cartilage formation. In this study, we determined the optimal size of MSC micropellet (μPellet) that can be homogeneously encapsulated in hydrogels with high cell viability. Unexpectedly, single cell encapsulation resulted in more robust new cartilage formation than μPellet encapsulation. Furthermore, tuning hydrogel formulation led to rapid cartilage regeneration with stiffness approaching that of native cartilage. The findings from this study would facilitate clinical translation of MSCs and hydrogel-based therapies for cartilage regeneration with optimized parameters.
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Affiliation(s)
- Heather Rogan
- Department of Bioengineering, Schools of Engineering and Medicine, Stanford University, Stanford, California
| | - Francisco Ilagan
- Department of Biology, School of Humanities and Sciences, Stanford University, Stanford, California
| | - Fan Yang
- Department of Bioengineering, Schools of Engineering and Medicine, Stanford University, Stanford, California.,Department of Orthopaedic Surgery, Stanford University, Stanford, California
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Legendre F, Ollitrault D, Gomez-Leduc T, Bouyoucef M, Hervieu M, Gruchy N, Mallein-Gerin F, Leclercq S, Demoor M, Galéra P. Enhanced chondrogenesis of bone marrow-derived stem cells by using a combinatory cell therapy strategy with BMP-2/TGF-β1, hypoxia, and COL1A1/HtrA1 siRNAs. Sci Rep 2017; 7:3406. [PMID: 28611369 PMCID: PMC5469741 DOI: 10.1038/s41598-017-03579-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 05/02/2017] [Indexed: 12/20/2022] Open
Abstract
Mesenchymal stem cells (MSCs) hold promise for cartilage engineering. Here, we aimed to determine the best culture conditions to induce chondrogenesis of MSCs isolated from bone marrow (BM) of aged osteoarthritis (OA) patients. We showed that these BM-MSCs proliferate slowly, are not uniformly positive for stem cell markers, and maintain their multilineage potential throughout multiple passages. The chondrogenic lineage of BM-MSCs was induced in collagen scaffolds, under normoxia or hypoxia, by BMP-2 and/or TGF-β1. The best chondrogenic induction, with the least hypertrophic induction, was obtained with the combination of BMP-2 and TGF-β1 under hypoxia. Differentiated BM-MSCs were then transfected with siRNAs targeting two markers overexpressed in OA chondrocytes, type I collagen and/or HtrA1 protease. siRNAs significantly decreased mRNA and protein levels of type I collagen and HtrA1, resulting in a more typical chondrocyte phenotype, but with frequent calcification of the subcutaneously implanted constructs in a nude mouse model. Our 3D culture model with BMP-2/TGF-β1 and COL1A1/HtrA1 siRNAs was not effective in producing a cartilage-like matrix in vivo. Further optimization is needed to stabilize the chondrocyte phenotype of differentiated BM-MSCs. Nevertheless, this study offers the opportunity to develop a combinatory cellular therapy strategy for cartilage tissue engineering.
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Affiliation(s)
- Florence Legendre
- Caen Normandy University, France; UNICAEN EA7450 BioTARGen (Biologie, Génétique et Thérapies ostéoArticulaires et Respiratoires), 3 rue Nelson Mandela, 14280, Saint-Contest, France
| | - David Ollitrault
- Caen Normandy University, France; UNICAEN EA7450 BioTARGen (Biologie, Génétique et Thérapies ostéoArticulaires et Respiratoires), 3 rue Nelson Mandela, 14280, Saint-Contest, France
| | - Tangni Gomez-Leduc
- Caen Normandy University, France; UNICAEN EA7450 BioTARGen (Biologie, Génétique et Thérapies ostéoArticulaires et Respiratoires), 3 rue Nelson Mandela, 14280, Saint-Contest, France
| | - Mouloud Bouyoucef
- Caen Normandy University, France; UNICAEN EA7450 BioTARGen (Biologie, Génétique et Thérapies ostéoArticulaires et Respiratoires), 3 rue Nelson Mandela, 14280, Saint-Contest, France
| | - Magalie Hervieu
- Caen Normandy University, France; UNICAEN EA7450 BioTARGen (Biologie, Génétique et Thérapies ostéoArticulaires et Respiratoires), 3 rue Nelson Mandela, 14280, Saint-Contest, France
| | - Nicolas Gruchy
- Caen Normandy University, France; UNICAEN EA7450 BioTARGen (Biologie, Génétique et Thérapies ostéoArticulaires et Respiratoires), 3 rue Nelson Mandela, 14280, Saint-Contest, France
- Laboratoire de Cytogénétique Prénatale, Service de Génétique, CHU Caen, France
| | - Frédéric Mallein-Gerin
- Institute for Biology and Chemistry of Proteins, CNRS, UMR 5305 Laboratory of Tissue Biology and Therapeutic Engineering, Université Claude Bernard-Lyon 1 and University of Lyon, Lyon, France
| | - Sylvain Leclercq
- Caen Normandy University, France; UNICAEN EA7450 BioTARGen (Biologie, Génétique et Thérapies ostéoArticulaires et Respiratoires), 3 rue Nelson Mandela, 14280, Saint-Contest, France
- Service de Chirurgie Orthopédique, Clinique Saint-Martin, Caen, France
| | - Magali Demoor
- Caen Normandy University, France; UNICAEN EA7450 BioTARGen (Biologie, Génétique et Thérapies ostéoArticulaires et Respiratoires), 3 rue Nelson Mandela, 14280, Saint-Contest, France
| | - Philippe Galéra
- Caen Normandy University, France; UNICAEN EA7450 BioTARGen (Biologie, Génétique et Thérapies ostéoArticulaires et Respiratoires), 3 rue Nelson Mandela, 14280, Saint-Contest, France.
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Duval E, Bouyoucef M, Leclercq S, Baugé C, Boumédiene K. Hypoxia inducible factor 1 alpha down-regulates type i collagen through Sp3 transcription factor in human chondrocytes. IUBMB Life 2016; 68:756-63. [PMID: 27521280 DOI: 10.1002/iub.1539] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 07/14/2016] [Indexed: 11/05/2022]
Abstract
Cartilage engineering is one challenging issue in regenerative medicine. Low oxygen tension or hypoxia inducible factor-1 (HIF-1α) gene therapy are promising strategies in the field of cartilage repair. Previously, we showed that hypoxia and its mediator HIF-1 regulate matrix genes expression (collagens and aggrecan). Here, we investigated the molecular mechanism involved in the regulation of type I collagen (COL1A1) by HIF-1 in human articular chondrocytes. We show that HIF-1α reduces COL1A1 transcription, through a distal promoter (-2300 to -1816 bp upstream transcription initiation site), containing two GC boxes that bind Sp transcription factors (Sp1/Sp3). Sp1 acts as a positive regulator but is not induced by HIF-1. COL1A1 inhibition caused by HIF-1 implies only Sp3, which accumulates and competes Sp1 binding on COL1A1 promoter. Additionally, Sp3 ectopic expression inhibits COL1A1, while Sp3 knockdown counteracts the downregulation of COL1A1 induced by HIF-1. In conclusion, we established a new regulatory model of COL1A1 regulation by HIF-1, and bring out its relationship with Sp3 transcription factor. In a fundamental level, these findings give insights in the mechanisms controlling COL1A1 gene expression. This may be helpful to improve strategies to impair type I collagen expression during chondrocyte differentiation for cartilage engineering. © 2016 IUBMB Life, 68(9):756-763, 2016.
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Affiliation(s)
- Elise Duval
- EA4652, Equipe BioConnecT, UNICAEN, Caen, CS, 14032, France.,Normandie University, UFR de médecine, Caen, France
| | - Mouloud Bouyoucef
- EA4652, Equipe BioConnecT, UNICAEN, Caen, CS, 14032, France.,Normandie University, UFR de médecine, Caen, France
| | - Sylvain Leclercq
- EA4652, Equipe BioConnecT, UNICAEN, Caen, CS, 14032, France.,Normandie University, UFR de médecine, Caen, France.,Département De Chirurgie Orthopédique, Clinique Saint-Martin, Caen, 14000, France
| | - Catherine Baugé
- EA4652, Equipe BioConnecT, UNICAEN, Caen, CS, 14032, France.,Normandie University, UFR de médecine, Caen, France.,Fédération Hospitalo Universitaire SURFACE, Amiens, Rouen, Caen, France
| | - Karim Boumédiene
- EA4652, Equipe BioConnecT, UNICAEN, Caen, CS, 14032, France.,Normandie University, UFR de médecine, Caen, France.,Fédération Hospitalo Universitaire SURFACE, Amiens, Rouen, Caen, France
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Im GI. Gene Transfer Strategies to Promote Chondrogenesis and Cartilage Regeneration. TISSUE ENGINEERING PART B-REVIEWS 2016; 22:136-48. [DOI: 10.1089/ten.teb.2015.0347] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Gun-Il Im
- Department of Orthopedics, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
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6
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Madry H, Cucchiarini M. Gene therapy for human osteoarthritis: principles and clinical translation. Expert Opin Biol Ther 2015; 16:331-46. [PMID: 26593049 DOI: 10.1517/14712598.2016.1124084] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Osteoarthritis (OA) is the most prevalent chronic joint disease. Its key feature is a progressive articular cartilage loss. Gene therapy for OA aims at delivering gene-based therapeutic agents to the osteoarthritic cartilage, resulting in a controlled, site-specific, long-term presence to rebuild the damaged cartilage. AREAS COVERED An overview is provided of the principles of gene therapy for OA based on a PubMed literature search. Gene transfer to normal and osteoarthritic cartilage in vitro and in animal models in vivo is reviewed. Results from recent clinical gene therapy trials for OA are discussed and placed into perspective. EXPERT OPINION Recombinant adeno-associated viral (rAAV) vectors enable to directly transfer candidate sequences in human articular chondrocytes in situ, providing a potent tool to modulate the structure of osteoarthritic cartilage. However, few preclinical animal studies in OA models have been performed thus far. Noteworthy, several gene therapy clinical trials have been carried out in patients with end-stage knee OA based on the intraarticular injection of human juvenile allogeneic chondrocytes overexpressing a cDNA encoding transforming growth factor-beta-1 via retroviral vectors. In a recent placebo-controlled randomized trial, clinical scores were improved compared with placebo. These translational results provide sufficient reason to proceed with further clinical testing of gene transfer protocols for the treatment of OA.
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Affiliation(s)
- Henning Madry
- a Center of Experimental Orthopaedics , Saarland University , Homburg/Saar , Germany
| | - Magali Cucchiarini
- a Center of Experimental Orthopaedics , Saarland University , Homburg/Saar , Germany
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7
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Gene Transfer and Gene Silencing in Stem Cells to Promote Chondrogenesis. Methods Mol Biol 2015; 1340:97-117. [PMID: 26445833 DOI: 10.1007/978-1-4939-2938-2_7] [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: 02/17/2023]
Abstract
In stem cell-based chondrogenesis for articular cartilage regeneration, TGF-β3 is dosed to the stem cells to drive differentiation into chondrocytic cells. Meanwhile, type I collagen, which is endogenously expressed in some stem cells (e.g., synovium-derived mesenchymal stem cells) and upregulated by TGF-β3, poses a threat to chondrogenesis, as type I collagen may alter the components and stiffness of articular cartilage. Therefore, a wiser strategy would be to feed the cells with TGF-β3 while at the same time silencing the expression of type I collagen. In this chapter, methods for construction of adenoviral vectors and lentiviral vectors having both of the above functions are given. Their transduction into synovium-derived mesenchymal stem cells for articular cartilage engineering and following characterizations are also described.
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8
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Frisch J, Rey-Rico A, Venkatesan JK, Schmitt G, Madry H, Cucchiarini M. Chondrogenic Differentiation Processes in Human Bone Marrow Aspirates upon rAAV-Mediated Gene Transfer and Overexpression of the Insulin-Like Growth Factor I. Tissue Eng Part A 2015; 21:2460-71. [PMID: 26123891 DOI: 10.1089/ten.tea.2014.0679] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Direct therapeutic gene transfer in marrow concentrates is an attractive strategy to conveniently enhance the chondrogenic differentiation processes as a means to improve the healing response of damaged articular cartilage upon reimplantation in sites of injury. In the present study, we evaluated the ability of the clinically adapted recombinant adeno-associated virus (rAAV) vectors to mediate overexpression of the insulin-like growth factor I (IGF-I) in human bone marrow aspirates that may modulate the proliferative, anabolic activities, and chondrogenic differentiation potential in such samples in vitro. The results demonstrate that successful, significant rAAV-mediated IGF-I gene transfer and expression were achieved in transduced aspirates (up to 105.9±35.1 pg rhIGF-I/mg total proteins) over time (21 days) at very high levels (∼80% of cells expressing the candidate IGF-I transgene), leading to increased levels of proliferation, matrix synthesis, and chondrogenic differentiation over time compared with the control (lacZ) condition. Treatment with the candidate IGF-I vector also stimulated the hypertrophic and osteogenic differentiation processes in the aspirates, suggesting that the regulation of IGF-I expression through rAAV will be a prerequisite for future translation of the approach in vivo. However, these findings show the possible benefits of this vector class to directly modify marrow concentrates as a convenient tool for strategies that aim at improving the repair of articular cartilage lesions.
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Affiliation(s)
- Janina Frisch
- 1 Center of Experimental Orthopaedics, Saarland University Medical Center , Homburg/Saar, Germany
| | - Ana Rey-Rico
- 1 Center of Experimental Orthopaedics, Saarland University Medical Center , Homburg/Saar, Germany
| | | | - Gertrud Schmitt
- 1 Center of Experimental Orthopaedics, Saarland University Medical Center , Homburg/Saar, Germany
| | - Henning Madry
- 1 Center of Experimental Orthopaedics, Saarland University Medical Center , Homburg/Saar, Germany .,2 Department of Orthopedic Surgery, Saarland University Medical Center , Homburg/Saar, Germany
| | - Magali Cucchiarini
- 1 Center of Experimental Orthopaedics, Saarland University Medical Center , Homburg/Saar, Germany
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9
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Gene modification of mesenchymal stem cells and articular chondrocytes to enhance chondrogenesis. BIOMED RESEARCH INTERNATIONAL 2014; 2014:369528. [PMID: 24963479 PMCID: PMC4052490 DOI: 10.1155/2014/369528] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 03/27/2014] [Indexed: 01/14/2023]
Abstract
Current cell based treatment for articular cartilage and osteochondral defects are hampered by issues such as cellular dedifferentiation and hypertrophy of the resident or transplanted cells. The reduced expression of chondrogenic signalling molecules and transcription factors is a major contributing factor to changes in cell phenotype. Gene modification of chondrocytes may be one approach to redirect cells to their primary phenotype and recent advances in nonviral and viral gene delivery technologies have enabled the expression of these lost factors at high efficiency and specificity to regain chondrocyte function. This review focuses on the various candidate genes that encode signalling molecules and transcription factors that are specific for the enhancement of the chondrogenic phenotype and also how epigenetic regulators of chondrogenesis in the form of microRNA may also play an important role.
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10
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Bidarra SJ, Barrias CC, Granja PL. Injectable alginate hydrogels for cell delivery in tissue engineering. Acta Biomater 2014; 10:1646-62. [PMID: 24334143 DOI: 10.1016/j.actbio.2013.12.006] [Citation(s) in RCA: 329] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 11/28/2013] [Accepted: 12/05/2013] [Indexed: 12/16/2022]
Abstract
Alginate hydrogels are extremely versatile and adaptable biomaterials, with great potential for use in biomedical applications. Their extracellular matrix-like features have been key factors for their choice as vehicles for cell delivery strategies aimed at tissue regeneration. A variety of strategies to decorate them with biofunctional moieties and to modulate their biophysical properties have been developed recently, which further allow their tailoring to the desired application. Additionally, their potential use as injectable materials offers several advantages over preformed scaffold-based approaches, namely: easy incorporation of therapeutic agents, such as cells, under mild conditions; minimally invasive local delivery; and high contourability, which is essential for filling in irregular defects. Alginate hydrogels have already been explored as cell delivery systems to enhance regeneration in different tissues and organs. Here, the in vitro and in vivo potential of injectable alginate hydrogels to deliver cells in a targeted fashion is reviewed. In each example, the selected crosslinking approach, the cell type, the target tissue and the main findings of the study are highlighted.
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Affiliation(s)
- Sílvia J Bidarra
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal.
| | - Cristina C Barrias
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal.
| | - Pedro L Granja
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; FEUP - Faculdade de Engenharia da Universidade do Porto, Departamento de Engenharia Metalúrgica e de Materiais, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
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Shi X, Zhou J, Zhao Y, Li L, Wu H. Gradient-regulated hydrogel for interface tissue engineering: steering simultaneous osteo/chondrogenesis of stem cells on a chip. Adv Healthc Mater 2013. [PMID: 23193109 DOI: 10.1002/adhm.201200333] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Injury to articular cartilage, especially the defects induced by degenerative diseases has presented insurmountable challenges. Elaborating a replacement of articular cartilage using biomimic tissue-engineering strategies provides a promising remedy. However, none of the previous osteo/chondrogenic methodologies can not only simultaneously induce osteo/chondrogenesis of stem cells in one scaffolding niche, but also generate a biomimic interface between the formed osteogenic and chondrogenic zones. We report here an innovative method using biomicrofluidic techniques to simultaneously steer distinct specialized differentiation of stem cells into chondrocytes and osteoblasts in one hydrogel slab. Importantly, a gradient that mimics the interface of bone-to-cartilage was generated in the middle of the hydrogel slab. We compared this format with the conventional method for osteochondrogenesis; this format using the gradient-generating microfluidic device indicated outstanding superiorities in stem cell culture and differentiation. Our findings will have a major impact on the design of versatile biomicrofluidic devices for interfacial tissue regeneration.
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Affiliation(s)
- Xuetao Shi
- WPI‐Advanced Institute for Materials Research, Tohoku University, Sendai 980‐8578, Japan
| | - Jianhua Zhou
- WPI‐Advanced Institute for Materials Research, Tohoku University, Sendai 980‐8578, Japan
- Department of Chemistry, Hong Kong University of Science and Technology, Hong Kong, China
| | - Yihua Zhao
- Department of Chemistry, Hong Kong University of Science and Technology, Hong Kong, China
| | - Lei Li
- Key Laboratory of Cryogenics & Beijing Key, Laboratory of Cryo‐Biomedical Engineering, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China
| | - Hongkai Wu
- WPI‐Advanced Institute for Materials Research, Tohoku University, Sendai 980‐8578, Japan
- Department of Chemistry, Hong Kong University of Science and Technology, Hong Kong, China
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12
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Zhang F, Yao Y, Su K, Fang Y, Citra F, Wang DA. Co-transduction of lentiviral and adenoviral vectors for co-delivery of growth factor and shRNA genes in mesenchymal stem cells-based chondrogenic system. J Tissue Eng Regen Med 2012. [DOI: 10.1002/term.1656] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Feng Zhang
- Division of Bioengineering, School of Chemical and Biomedical Engineering; Nanyang Technological University; Singapore
| | - Yongchang Yao
- Division of Bioengineering, School of Chemical and Biomedical Engineering; Nanyang Technological University; Singapore
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
- National Engineering Research Centre for Tissue Restoration and Reconstruction; Guangzhou 510006 People's Republic of China
| | - Kai Su
- Division of Bioengineering, School of Chemical and Biomedical Engineering; Nanyang Technological University; Singapore
| | - Yu Fang
- Division of Bioengineering, School of Chemical and Biomedical Engineering; Nanyang Technological University; Singapore
| | - Fudiman Citra
- Division of Bioengineering, School of Chemical and Biomedical Engineering; Nanyang Technological University; Singapore
| | - Dong-An Wang
- Division of Bioengineering, School of Chemical and Biomedical Engineering; Nanyang Technological University; Singapore
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13
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Santhagunam A, Madeira C, Cabral JMS. Genetically engineered stem cell-based strategies for articular cartilage regeneration. Biotechnol Appl Biochem 2012; 59:121-31. [DOI: 10.1002/bab.1016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Accepted: 03/06/2012] [Indexed: 02/06/2023]
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