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Chondroitin sulfate cross-linked three-dimensional tailored electrospun scaffolds for cartilage regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 134:112643. [DOI: 10.1016/j.msec.2022.112643] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 12/09/2021] [Accepted: 01/02/2022] [Indexed: 01/11/2023]
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Levingstone TJ, Moran C, Almeida HV, Kelly DJ, O'Brien FJ. Layer-specific stem cell differentiation in tri-layered tissue engineering biomaterials: Towards development of a single-stage cell-based approach for osteochondral defect repair. Mater Today Bio 2021; 12:100173. [PMID: 34901823 PMCID: PMC8640516 DOI: 10.1016/j.mtbio.2021.100173] [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] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/25/2021] [Accepted: 11/27/2021] [Indexed: 12/26/2022] Open
Abstract
Successful repair of osteochondral defects is challenging, due in part to their complex gradient nature. Tissue engineering approaches have shown promise with the development of layered scaffolds that aim to promote cartilage and bone regeneration within the defect. The clinical potential of implanting these scaffolds cell-free has been demonstrated, whereby cells from the host bone marrow MSCs infiltrate the scaffolds and promote cartilage and bone regeneration within the required regions of the defect. However, seeding the cartilage layer of the scaffold with a chondrogenic cell population prior to implantation may enhance cartilage tissue regeneration, thus enabling the treatment of larger defects. Here the development of a cell seeding approach capable of enhancing articular cartilage repair without the requirement for in vitro expansion of the cell population is explored. The intrinsic ability of a tri-layered scaffold previously developed in our group to direct stem cell differentiation in each layer of the scaffold was first demonstrated. Following this, the optimal chondrogenic cell seeding approach capable of enhancing the regenerative capacity of the tri-layered scaffold was demonstrated with the highest levels of chondrogenesis achieved with a co-culture of rapidly isolated infrapatellar fat pad MSCs (FPMSCs) and chondrocytes (CCs). The addition of FPMSCs to a relatively small number of CCs led to a 7.8-fold increase in the sGAG production over chondrocytes in mono-culture. This cell seeding approach has the potential to be delivered within a single-stage approach, without the requirement for costly in vitro expansion of harvested cells, to achieve rapid repair of osteochondral defects. Tri-layered scaffold capable of directing layer specific stem cell differentiation. Potential of cell seeding regimes to enhance chondrogenic repair explored. Optimal cell seeding regime was an infrapatellar fat pad MSC:chondrocyte coculture. Adding infrapatellar fat pad MSCs to chondrocytes led to >7-fold increase in sGAG. This cell-seeded scaffold has potential for rapid repair of osteochondral defects.
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Affiliation(s)
- Tanya J. Levingstone
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), 123 St. Stephen's Green, Dublin, 2, Ireland
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin, 9, Ireland
- Centre for Medical Engineering Research (MEDeng), Dublin City University, Dublin, 9, Ireland
- Advanced Processing Technology Research Centre, Dublin City University, Dublin, 9, Ireland
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, 2, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, RCSI & TCD, Ireland
| | - Conor Moran
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), 123 St. Stephen's Green, Dublin, 2, Ireland
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, 2, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, RCSI & TCD, Ireland
| | - Henrique V. Almeida
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, 2, Ireland
- iBET, Instituto de Biologia Experimental e Tecnológica, 2781-901, Oeiras, Portugal
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin, 2, Ireland
| | - Daniel J. Kelly
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin, 9, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, RCSI & TCD, Ireland
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin, 2, Ireland
| | - Fergal J. O'Brien
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), 123 St. Stephen's Green, Dublin, 2, Ireland
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, 2, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, RCSI & TCD, Ireland
- Corresponding author. Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), 123 St. Stephen's Green, Dublin, 2, Ireland.
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Cao H, Wang X, Chen M, Liu Y, Cui X, Liang J, Wang Q, Fan Y, Zhang X. Childhood Cartilage ECM Enhances the Chondrogenesis of Endogenous Cells and Subchondral Bone Repair of the Unidirectional Collagen-dECM Scaffolds in Combination with Microfracture. ACS APPLIED MATERIALS & INTERFACES 2021; 13:57043-57057. [PMID: 34806361 DOI: 10.1021/acsami.1c19447] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Despite the formation of mechanically inferior fibrocartilage, microfracture (MF) still remains the gold standard to repair the articular cartilage defects in clinical settings. To date, although many tissue-engineering scaffolds have been developed to enhance the MF outcome, the clinical outcomes remain inconsistent. Decellularized extracellular matrix (dECM) is among the most promising scaffold for cartilage repair due to its inheritance of the natural cartilage components. However, the impact of dECM from different developmental stages on cellular chondrogenesis and therapeutic effect remains elusive, as the development of native cartilage involves the distinct temporal dependency of the ECM components and various growth factors. Herein, we hypothesized that the immature cartilage dECM at various developmental stages was inherently different, and would consequently impact the chondrogenic potential BMSCs. In this study, we fabricated three different unidirectional collagen-dECM scaffolds sourced from neonatal, childhood, and adolescent rabbit cartilage tissues, and identified the age-dependent biological variations, including DNA, cartilage-specific proteins, and growth factors; along with the mechanical and degradation differences. Consequently, the different local cellular microenvironments provided by these scaffolds led to the distinctive cell morphology, circularity, proliferation, chondrogenic genes expression, and chondrogenesis of BMSCs in vitro, and the different gross morphology, cartilage-specific protein production, and subchondral bone repair when in combination with microfracture in vivo. Together, this work highlights the immature cartilage dECM at different developmental stages that would result in the diversified effects to BMSCs, and childhood cartilage would be considered the optimal dECM source for the further development of dECM-based tissue engineering scaffolds in articular cartilage repair.
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Affiliation(s)
- Hongfu Cao
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610065, China
- College of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610065, China
| | - Xiuyu Wang
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, Guangxi Collaborative Innovation Center for Biomedicine, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Manyu Chen
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610065, China
- College of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610065, China
| | - Yuhan Liu
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, Guangxi Collaborative Innovation Center for Biomedicine, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Xiaolin Cui
- Department of Orthopaedic Surgery, University of Otago, Christchurch, 8011, New Zealand
- Department of Bone and Joint, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116000, China
| | - Jie Liang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610065, China
- College of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610065, China
| | - Qiguang Wang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610065, China
- College of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610065, China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610065, China
- College of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610065, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610065, China
- College of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610065, China
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54
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Wei W, Dai H. Articular cartilage and osteochondral tissue engineering techniques: Recent advances and challenges. Bioact Mater 2021; 6:4830-4855. [PMID: 34136726 PMCID: PMC8175243 DOI: 10.1016/j.bioactmat.2021.05.011] [Citation(s) in RCA: 119] [Impact Index Per Article: 39.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 04/20/2021] [Accepted: 05/11/2021] [Indexed: 12/18/2022] Open
Abstract
In spite of the considerable achievements in the field of regenerative medicine in the past several decades, osteochondral defect regeneration remains a challenging issue among diseases in the musculoskeletal system because of the spatial complexity of osteochondral units in composition, structure and functions. In order to repair the hierarchical tissue involving different layers of articular cartilage, cartilage-bone interface and subchondral bone, traditional clinical treatments including palliative and reparative methods have showed certain improvement in pain relief and defect filling. It is the development of tissue engineering that has provided more promising results in regenerating neo-tissues with comparable compositional, structural and functional characteristics to the native osteochondral tissues. Here in this review, some basic knowledge of the osteochondral units including the anatomical structure and composition, the defect classification and clinical treatments will be first introduced. Then we will highlight the recent progress in osteochondral tissue engineering from perspectives of scaffold design, cell encapsulation and signaling factor incorporation including bioreactor application. Clinical products for osteochondral defect repair will be analyzed and summarized later. Moreover, we will discuss the current obstacles and future directions to regenerate the damaged osteochondral tissues.
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Affiliation(s)
- Wenying Wei
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070, China
- International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China
| | - Honglian Dai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070, China
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, China
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55
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Doyle SE, Snow F, Duchi S, O’Connell CD, Onofrillo C, Di Bella C, Pirogova E. 3D Printed Multiphasic Scaffolds for Osteochondral Repair: Challenges and Opportunities. Int J Mol Sci 2021; 22:12420. [PMID: 34830302 PMCID: PMC8622524 DOI: 10.3390/ijms222212420] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/11/2021] [Accepted: 11/12/2021] [Indexed: 12/19/2022] Open
Abstract
Osteochondral (OC) defects are debilitating joint injuries characterized by the loss of full thickness articular cartilage along with the underlying calcified cartilage through to the subchondral bone. While current surgical treatments can provide some relief from pain, none can fully repair all the components of the OC unit and restore its native function. Engineering OC tissue is challenging due to the presence of the three distinct tissue regions. Recent advances in additive manufacturing provide unprecedented control over the internal microstructure of bioscaffolds, the patterning of growth factors and the encapsulation of potentially regenerative cells. These developments are ushering in a new paradigm of 'multiphasic' scaffold designs in which the optimal micro-environment for each tissue region is individually crafted. Although the adoption of these techniques provides new opportunities in OC research, it also introduces challenges, such as creating tissue interfaces, integrating multiple fabrication techniques and co-culturing different cells within the same construct. This review captures the considerations and capabilities in developing 3D printed OC scaffolds, including materials, fabrication techniques, mechanical function, biological components and design.
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Affiliation(s)
- Stephanie E. Doyle
- Electrical and Biomedical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia; (F.S.)
- ACMD, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (S.D.); (C.O.); (C.D.B.)
| | - Finn Snow
- Electrical and Biomedical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia; (F.S.)
| | - Serena Duchi
- ACMD, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (S.D.); (C.O.); (C.D.B.)
- Department of Surgery, The University of Melbourne, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Cathal D. O’Connell
- Electrical and Biomedical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia; (F.S.)
- ACMD, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (S.D.); (C.O.); (C.D.B.)
| | - Carmine Onofrillo
- ACMD, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (S.D.); (C.O.); (C.D.B.)
- Department of Surgery, The University of Melbourne, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Claudia Di Bella
- ACMD, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (S.D.); (C.O.); (C.D.B.)
- Department of Surgery, The University of Melbourne, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia
- Department of Orthopaedics, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia
| | - Elena Pirogova
- Electrical and Biomedical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia; (F.S.)
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Ai C, Lee YHD, Tan XH, Tan SHS, Hui JHP, Goh JCH. Osteochondral tissue engineering: Perspectives for clinical application and preclinical development. J Orthop Translat 2021; 30:93-102. [PMID: 34722152 PMCID: PMC8517716 DOI: 10.1016/j.jot.2021.07.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 06/15/2021] [Accepted: 07/28/2021] [Indexed: 01/17/2023] Open
Abstract
The treatment of osteochondral defects (OCD) remains challenging. Among currently available surgical treatments for OCDs, scaffold-based treatments are promising to regenerate the osteochondral unit. However, there is still no consensus regarding the clinical effectiveness of these scaffold-based therapies for OCDs. Previous reviews have described the gradient physiological characteristics of osteochondral tissue and gradient scaffold design for OCD, tissue engineering strategies, biomaterials, and fabrication technologies. However, the discussion on bridging the gap between the clinical need and preclinical research is still limited, on which we focus in the present review, providing an insight into what is currently lacking in tissue engineering methods that failed to yield satisfactory outcomes, and what is needed to further improve these techniques. Currently available surgical treatments for OCDs are firstly summarized, followed by a comprehensive review on experimental animal studies in recent 5 years on osteochondral tissue engineering. The review will then conclude with what is currently lacking in these animal studies and the recommendations that would help enlighten the community in developing more clinically relevant implants. The translational potential of this article This review is attempting to summarize the lessons from clinical and preclinical failures, providing an insight into what is currently lacking in TE methods that failed to yield satisfactory outcomes, and what is needed to further improve these implants.
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Affiliation(s)
- Chengchong Ai
- Integrative Sciences and Engineering Programme, NUS Graduate School, National University of Singapore, Singapore.,Department of Biomedical Engineering, National University of Singapore, Singapore
| | - Yee Han Dave Lee
- Department of Orthopaedic Surgery, National University Health System, Singapore
| | - Xuan Hao Tan
- Integrative Sciences and Engineering Programme, NUS Graduate School, National University of Singapore, Singapore.,Department of Biomedical Engineering, National University of Singapore, Singapore
| | - Si Heng Sharon Tan
- Department of Orthopaedic Surgery, National University Health System, Singapore
| | - James Hoi Po Hui
- Department of Orthopaedic Surgery, National University Health System, Singapore.,NUS Tissue Engineering Programme, Life Sciences Institute, National University of Singapore, Singapore.,Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - James Cho-Hong Goh
- Integrative Sciences and Engineering Programme, NUS Graduate School, National University of Singapore, Singapore.,Department of Biomedical Engineering, National University of Singapore, Singapore.,NUS Tissue Engineering Programme, Life Sciences Institute, National University of Singapore, Singapore.,Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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57
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Chen Z, Xiao H, Zhang H, Xin Q, Zhang H, Liu H, Wu M, Zuo L, Luo J, Guo Q, Ding C, Tan H, Li J. Heterogenous hydrogel mimicking the osteochondral ECM applied to tissue regeneration. J Mater Chem B 2021; 9:8646-8658. [PMID: 34595487 DOI: 10.1039/d1tb00518a] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Inspired by the intricate extracellular matrix (ECM) of natural cartilage and subchondral bone, a heterogenous bilayer hydrogel scaffold is fabricated. Gelatin methacrylate (GelMA) and acryloyl glucosamine (AGA) serve as the main components in the upper layer, mimicking the chondral ECM. Meanwhile, vinylphosphonic acid (VPA) as a non-collagen protein analogue is incorporated into the bottom layer to induce the in situ biomineralization of calcium phosphate. The two heterogenous layers are effectively sutured together by the inter-diffusion between the upper and bottom layer hydrogels, together with chelation between the calcium ions and alginate added to separate layers. The interfacial bonding between the two different layers was thoroughly investigated via rheological measurements. The incorporation of AGA promotes chondrocytes to produce collagen type II and glycosaminoglycans and upregulates the expression of chondrogenesis-related genes. In addition, the minerals induced by VPA facilitate the osteogenesis of bone marrow mesenchymal stem cells (BMSCs). In vivo evaluation confirms the biocompatibility of the scaffold with minor inflammation and confirms the best repair ability of the bilayer hydrogel. This cell-free, cost-effective and efficient hydrogel shows great potential for osteochondral repair and inspires the design of other tissue-engineering scaffolds.
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Affiliation(s)
- Zhuoxin Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.
| | - Hong Xiao
- Department of Pain Management, West China Hospital, Sichuan University, No. 37, GuoXue Xiang, Chengdu 610041, China
| | - Hongbo Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.
| | - Qiangwei Xin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.
| | - Haochen Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.
| | - Haixin Liu
- Department of Orthopedics, People's Hospital of Deyang City, No. 173, Taishan North Road, Deyang 618000, China
| | - Mingzhen Wu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.
| | - Liangrui Zuo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.
| | - Jun Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.
| | - Qiang Guo
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Chunmei Ding
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China. .,CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Beijing 100190, China
| | - Hong Tan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China. .,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.,Med-X Center for Materials, Sichuan University, 610041, China
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58
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A Bilayer Osteochondral Scaffold with Self‐Assembled Monomeric Collagen Type‐I, Type‐II, and Polymerized Chondroitin Sulfate Promotes Chondrogenic and Osteogenic Differentiation of Mesenchymal Stem Cells. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202100089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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59
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Camacho P, Behre A, Fainor M, Seims KB, Chow LW. Spatial organization of biochemical cues in 3D-printed scaffolds to guide osteochondral tissue engineering. Biomater Sci 2021; 9:6813-6829. [PMID: 34473149 DOI: 10.1039/d1bm00859e] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Functional repair of osteochondral (OC) tissue remains challenging because the transition from bone to cartilage presents gradients in biochemical and physical properties necessary for joint function. Osteochondral regeneration requires strategies that restore the spatial composition and organization found in the native tissue. Several biomaterial approaches have been developed to guide chondrogenic and osteogenic differentiation of human mesenchymal stem cells (hMSCs). These strategies can be combined with 3D printing, which has emerged as a useful tool to produce tunable, continuous scaffolds functionalized with bioactive cues. However, functionalization often includes one or more post-fabrication processing steps, which can lead to unwanted side effects and often produce biomaterials with homogeneously distributed chemistries. To address these challenges, surface functionalization can be achieved in a single step by solvent-cast 3D printing peptide-functionalized polymers. Peptide-poly(caprolactone) (PCL) conjugates were synthesized bearing hyaluronic acid (HA)-binding (HAbind-PCL) or mineralizing (E3-PCL) peptides, which have been shown to promote hMSC chondrogenesis or osteogenesis, respectively. This 3D printing strategy enables unprecedented control of surface peptide presentation and spatial organization within a continuous construct. Scaffolds presenting both cartilage-promoting and bone-promoting peptides had a synergistic effect that enhanced hMSC chondrogenic and osteogenic differentiation in the absence of differentiation factors compared to scaffolds without peptides or only one peptide. Furthermore, multi-peptide organization significantly influenced hMSC response. Scaffolds presenting HAbind and E3 peptides in discrete opposing zones promoted hMSC osteogenic behavior. In contrast, presenting both peptides homogeneously throughout the scaffolds drove hMSC differentiation towards a mixed population of articular and hypertrophic chondrocytes. These significant results indicated that hMSC behavior was driven by dual-peptide presentation and organization. The downstream potential of this platform is the ability to fabricate biomaterials with spatially controlled biochemical cues to guide functional tissue regeneration without the need for differentiation factors.
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Affiliation(s)
- Paula Camacho
- Department of Bioengineering, Lehigh University, Bethlehem, PA, USA
| | - Anne Behre
- Department of Bioengineering, Lehigh University, Bethlehem, PA, USA
| | - Matthew Fainor
- Integrated Degree in Engineering, Arts, and Sciences Program, Lehigh University, Bethlehem, PA, USA
| | - Kelly B Seims
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA, USA.
| | - Lesley W Chow
- Department of Bioengineering, Lehigh University, Bethlehem, PA, USA.,Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA, USA.
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60
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Redenski I, Guo S, Machour M, Szklanny A, Landau S, Kaplan B, Lock RI, Gabet Y, Egozi D, Vunjak‐Novakovic G, Levenberg S. Engineered Vascularized Flaps, Composed of Polymeric Soft Tissue and Live Bone, Repair Complex Tibial Defects. ADVANCED FUNCTIONAL MATERIALS 2021; 31:2008687. [DOI: 10.1002/adfm.202008687] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Indexed: 02/05/2023]
Affiliation(s)
- Idan Redenski
- Department of Biomedical Engineering Technion—Israel Institute of Technology Haifa 32000 Israel
| | - Shaowei Guo
- Department of Biomedical Engineering Technion—Israel Institute of Technology Haifa 32000 Israel
- The First Affiliated Hospital Shantou University Medical College Shantou 515000 China
| | - Majd Machour
- Department of Biomedical Engineering Technion—Israel Institute of Technology Haifa 32000 Israel
| | - Ariel Szklanny
- Department of Biomedical Engineering Technion—Israel Institute of Technology Haifa 32000 Israel
| | - Shira Landau
- Department of Biomedical Engineering Technion—Israel Institute of Technology Haifa 32000 Israel
| | - Ben Kaplan
- Department of Biomedical Engineering Technion—Israel Institute of Technology Haifa 32000 Israel
| | - Roberta I. Lock
- Department of Biomedical Engineering Columbia University New York NY 10032 USA
| | - Yankel Gabet
- Department of Anatomy and Anthropology Sackler Faculty of Medicine Tel‐Aviv University Tel‐Aviv 6997801 Israel
| | - Dana Egozi
- Department of Plastic and Reconstructive Surgery Kaplan Hospital Rehovot and the Hebrew University Jerusalem 7661041 Israel
| | | | - Shulamit Levenberg
- Department of Biomedical Engineering Technion—Israel Institute of Technology Haifa 32000 Israel
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61
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Chen W, Li Y, Huang Y, Dai Y, Xi T, Zhou Z, Liu H. Quercetin modified electrospun PHBV fibrous scaffold enhances cartilage regeneration. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:92. [PMID: 34374884 PMCID: PMC8354921 DOI: 10.1007/s10856-021-06565-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
It suggests that the poly (3-hydroxybutyric acid-co-3-hydroxyvaleric acid) (PHBV) scaffold can be used for cartilage tissue engineering, but PHBV is short of bioactivity that is required for cartilage regeneration. To fabricate a bioactive cartilage tissue engineering scaffold that promotes cartilage regeneration, quercetin (QUE) modified PHBV (PHBV-g-QUE) fibrous scaffolds were prepared by a two-step surface modification method. The PHBV-g-QUE fibrous scaffold facilitates the growth of chondrocytes and maintains chondrocytic phenotype resulting from the upregulation of SOX9, COL II, and ACAN. The PHBV-g-QUE fibrous scaffold inhibited apoptosis of chondrocyte and reduced oxidative stress of chondrocytes by regulating the transcription of related genes. Following PHBV-g-QUE fibrous scaffolds and PHBV fibrous scaffolds with adhered chondrocytes were implanted into nude mice for 4 weeks, it demonstrated that PHBV-g-QUE fibrous scaffolds significantly promoted cartilage regeneration compared with the PHBV fibrous scaffolds. Hence, it suggests that the PHBV-g-QUE fibrous scaffold can be potentially applied in the clinical treatment of cartilage defects in the future.
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Affiliation(s)
- Wei Chen
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
| | - Yongsheng Li
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
| | - Yuting Huang
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
| | - Yao Dai
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, China.
| | - Tingfei Xi
- Shenzhen Institute, Peking University, Shenzhen, 518057, China
| | - Zheng Zhou
- College of Biology, Hunan University, Changsha, 410082, China
| | - Hairong Liu
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, China.
- Hunan Province Key Laboratory for Spray Deposition Technology and Application, Hunan University, Changsha, 410082, China.
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Jiang G, Li S, Yu K, He B, Hong J, Xu T, Meng J, Ye C, Chen Y, Shi Z, Feng G, Chen W, Yan S, He Y, Yan R. A 3D-printed PRP-GelMA hydrogel promotes osteochondral regeneration through M2 macrophage polarization in a rabbit model. Acta Biomater 2021; 128:150-162. [PMID: 33894346 DOI: 10.1016/j.actbio.2021.04.010] [Citation(s) in RCA: 105] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 03/25/2021] [Accepted: 04/01/2021] [Indexed: 12/17/2022]
Abstract
Osteochondral regeneration is an orchestrated process of inflammatory immunity, host cell response, and implant degradation in tissue engineering. Here, the effects of a platelet-rich plasma (PRP)-gelatin methacryloyl (GelMA) hydrogel scaffold fabricated using the digital micro-mirror device (DMD) technique for osteochondral repair were investigated in a rabbit model. GelMA hydrogels with different PRP concentrations were fabricated, and their roles in bone marrow mesenchymal stem cells (BMSCs) and macrophage polarization in vitro were investigated. The incorporation of 20% PRP into the hydrogel showed optimal effects on the proliferation, migration, and osteogenic and chondrogenic differentiation of BMSCs. The 20% PRP-GelMA (v/v) hydrogel also promoted M2 polarization with high expression of Arg1 and CD206. Compared to the 20% PRP group, the 50% PRP group showed similar biological roles in BMSCs but less extent of osteogenesis. In the vivo study, the 20% PRP-GelMA composite was used for osteochondral reconstruction and showed more cartilage and subchondral bone regeneration than that observed using the pure GelMA hydrogel. The PRP-GelMA group exhibited more M2 macrophage infiltration and less M1 macrophage presentation at three time points as compared to the nontreatment group. The expression of Arg1 in the PRP-GelMA group increased significantly at 6 weeks but decreased to a lower level at 12 weeks, while CD163 showed sustained high expression until 18 weeks. Our findings demonstrated that the 3D-printed PRP-GelMA composite could promote osteochondral repair through immune regulation by M2 polarization and could be a potential candidate for osteochondral tissue engineering. STATEMENT OF SIGNIFICANCE: PRP-GelMA hydrogels promoted the migration and osteogenic and chondrogenic differentiation of BMSCs. PRP-GelMA hydrogels participated in immune regulation and M1-to-M2 transition of macrophages. PRP-GelMA hydrogels coordinated and promoted several overlapping osteochondral repair events, including dynamic immune regulation, chemotaxis of MSCs, and osteochondral differentiation. PRP-GelMA hydrogels showed superior cartilage and subchondral bone repair properties.
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63
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Guo JL, Kim YS, Koons GL, Lam J, Navara AM, Barrios S, Xie VY, Watson E, Smith BT, Pearce HA, Orchard EA, van den Beucken JJJP, Jansen JA, Wong ME, Mikos AG. Bilayered, peptide-biofunctionalized hydrogels for in vivo osteochondral tissue repair. Acta Biomater 2021; 128:120-129. [PMID: 33930575 PMCID: PMC8222183 DOI: 10.1016/j.actbio.2021.04.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 04/01/2021] [Accepted: 04/19/2021] [Indexed: 10/21/2022]
Abstract
Osteochondral defects present a unique clinical challenge due to their combination of phenotypically distinct cartilage and bone, which require specific, stratified biochemical cues for tissue regeneration. Furthermore, the articular cartilage exhibits significantly worse regeneration than bone due to its largely acellular and avascular nature, prompting significant demand for regenerative therapies. To address these clinical challenges, we have developed a bilayered, modular hydrogel system that enables the click functionalization of cartilage- and bone-specific biochemical cues to each layer. In this system, the crosslinker poly(glycolic acid)-poly(ethylene glycol)-poly(glycolic acid)-di(but-2-yne-1,4-dithiol) (PdBT) was click conjugated with either a cartilage- or bone-specific peptide sequence of interest, and then mixed with a suspension of thermoresponsive polymer and mesenchymal stem cells (MSCs) to generate tissue-specific, cell-encapsulated hydrogel layers targeting the cartilage or bone. We implanted bilayered hydrogels in rabbit femoral condyle defects and investigated the effects of tissue-specific peptide presentation and cell encapsulation on osteochondral tissue repair. After 12 weeks implantation, hydrogels with a chondrogenic peptide sequence produced higher histological measures of overall defect filling, cartilage surface regularity, glycosaminoglycan (GAG)/cell content of neocartilage and adjacent cartilage, and bone filling and bonding compared to non-chondrogenic hydrogels. Furthermore, MSC encapsulation promoted greater histological measures of overall defect filling, cartilage thickness, GAG/cell content of neocartilage, and bone filling. Our results establish the utility of this click functionalized hydrogel system for in vivo repair of the osteochondral unit. STATEMENT OF SIGNIFICANCE: Osteochondral repair requires mimicry of both cartilage- and bone-specific biochemical cues, which are highly distinct. While traditional constructs for osteochondral repair have mimicked gross compositional differences between the cartilage and bone in mineral content, mechanical properties, proteins, or cell types, few constructs have recapitulated the specific biochemical cues responsible for the differential development of cartilage and bone. In this study, click biofunctionalized, bilayered hydrogels produced stratified presentation of developmentally inspired peptide sequences for chondrogenesis and osteogenesis. This work represents, to the authors' knowledge, the first application of bioconjugation chemistry for the simultaneous repair of bone and cartilage tissue. The conjugation of tissue-specific peptide sequences successfully promoted development of both cartilage and bone tissues in vivo.
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Affiliation(s)
- Jason L Guo
- Department of Bioengineering, Rice University, Houston, TX, USA.
| | - Yu Seon Kim
- Department of Bioengineering, Rice University, Houston, TX, USA.
| | - Gerry L Koons
- Department of Bioengineering, Rice University, Houston, TX, USA.
| | - Johnny Lam
- Division of Cellular and Gene Therapies, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, USA.
| | - Adam M Navara
- Department of Bioengineering, Rice University, Houston, TX, USA.
| | - Sergio Barrios
- Department of Bioengineering, Rice University, Houston, TX, USA.
| | - Virginia Y Xie
- Department of Bioengineering, Rice University, Houston, TX, USA.
| | - Emma Watson
- Department of Bioengineering, Rice University, Houston, TX, USA.
| | - Brandon T Smith
- Department of Bioengineering, Rice University, Houston, TX, USA.
| | - Hannah A Pearce
- Department of Bioengineering, Rice University, Houston, TX, USA.
| | | | | | - John A Jansen
- Department of Dentistry - Biomaterials, Radboud University Medical Center, Nijmegen, The Netherlands.
| | - Mark E Wong
- Department of Surgery, Division of Maxillofacial Surgery, The University of Texas School of Dentistry, Houston, TX, USA.
| | - Antonios G Mikos
- Department of Bioengineering, Rice University, Houston, TX, USA.
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64
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Gonçalves AM, Moreira A, Weber A, Williams GR, Costa PF. Osteochondral Tissue Engineering: The Potential of Electrospinning and Additive Manufacturing. Pharmaceutics 2021; 13:983. [PMID: 34209671 PMCID: PMC8309012 DOI: 10.3390/pharmaceutics13070983] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/22/2021] [Accepted: 06/25/2021] [Indexed: 12/14/2022] Open
Abstract
The socioeconomic impact of osteochondral (OC) damage has been increasing steadily over time in the global population, and the promise of tissue engineering in generating biomimetic tissues replicating the physiological OC environment and architecture has been falling short of its projected potential. The most recent advances in OC tissue engineering are summarised in this work, with a focus on electrospun and 3D printed biomaterials combined with stem cells and biochemical stimuli, to identify what is causing this pitfall between the bench and the patients' bedside. Even though significant progress has been achieved in electrospinning, 3D-(bio)printing, and induced pluripotent stem cell (iPSC) technologies, it is still challenging to artificially emulate the OC interface and achieve complete regeneration of bone and cartilage tissues. Their intricate architecture and the need for tight spatiotemporal control of cellular and biochemical cues hinder the attainment of long-term functional integration of tissue-engineered constructs. Moreover, this complexity and the high variability in experimental conditions used in different studies undermine the scalability and reproducibility of prospective regenerative medicine solutions. It is clear that further development of standardised, integrative, and economically viable methods regarding scaffold production, cell selection, and additional biochemical and biomechanical stimulation is likely to be the key to accelerate the clinical translation and fill the gap in OC treatment.
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Affiliation(s)
| | - Anabela Moreira
- BIOFABICS, Rua Alfredo Allen 455, 4200-135 Porto, Portugal; (A.M.G.); (A.M.)
| | - Achim Weber
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstrasse 12, 70569 Stuttgart, Germany;
| | - Gareth R. Williams
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK;
| | - Pedro F. Costa
- BIOFABICS, Rua Alfredo Allen 455, 4200-135 Porto, Portugal; (A.M.G.); (A.M.)
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65
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Haghwerdi F, Khozaei Ravari M, Taghiyar L, Shamekhi MA, Jahangir S, Haririan I, Baghaban Eslaminejad M. Application of bone and cartilage extracellular matrices in articular cartilage regeneration. Biomed Mater 2021; 16. [PMID: 34102624 DOI: 10.1088/1748-605x/ac094b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 06/08/2021] [Indexed: 01/02/2023]
Abstract
Articular cartilage has an avascular structure with a poor ability for self-repair; therefore, many challenges arise in cases of trauma or disease. It is of utmost importance to identify the proper biomaterial for tissue repair that has the capability to direct cell recruitment, proliferation, differentiation, and tissue integration by imitating the natural microenvironment of cells and transmitting an orchestra of intracellular signals. Cartilage extracellular matrix (cECM) is a complex nanostructure composed of divergent proteins and glycosaminoglycans (GAGs), which regulate many functions of resident cells. Numerous studies have shown the remarkable capacity of ECM-derived biomaterials for tissue repair and regeneration. Moreover, given the importance of biodegradability, biocompatibility, 3D structure, porosity, and mechanical stability in the design of suitable scaffolds for cartilage tissue engineering, demineralized bone matrix (DBM) appears to be a promising biomaterial for this purpose, as it possesses the aforementioned characteristics inherently. To the best of the authors' knowledge, no comprehensive review study on the use of DBM in cartilage tissue engineering has previously been published. Since so much work is needed to address DBM limitations such as pore size, cell retention, and so on, we decided to draw the attention of researchers in this field by compiling a list of recent publications. This review discusses the implementation of composite scaffolds of natural or synthetic origin functionalized with cECM or DBM in cartilage tissue engineering. Cutting-edge advances and limitations are also discussed in an attempt to provide guidance to researchers and clinicians.
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Affiliation(s)
- Fatemeh Haghwerdi
- Department of Pharmaceutical Biomaterials, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojtaba Khozaei Ravari
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran Iran
| | - Leila Taghiyar
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran Iran
| | - Mohammad Amin Shamekhi
- Department of Polymer Engineering, Islamic Azad University, Sarvestan Branch, Sarvestan, Iran
| | - Shahrbano Jahangir
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran Iran
| | - Ismaeil Haririan
- Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center (MBRC), Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohamadreza Baghaban Eslaminejad
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran Iran
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66
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Nordberg RC, Huebner P, Schuchard KG, Mellor LF, Shirwaiker RA, Loboa EG, Spang JT. The evaluation of a multiphasic 3D-bioplotted scaffold seeded with adipose derived stem cells to repair osteochondral defects in a porcine model. J Biomed Mater Res B Appl Biomater 2021; 109:2246-2258. [PMID: 34114736 DOI: 10.1002/jbm.b.34886] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 03/02/2021] [Accepted: 05/29/2021] [Indexed: 12/15/2022]
Abstract
There is a need for the development of effective treatments for focal articular cartilage injuries. We previously developed a multiphasic 3D-bioplotted osteochondral scaffold design that can drive site-specific tissue formation when seeded with adipose-derived stem cells (ASC). The objective of this study was to evaluate this scaffold in a large animal model. Osteochondral defects were generated in the trochlear groove of Yucatan minipigs and repaired with scaffolds that either contained or lacked an electrospun tidemark and were either unseeded or seeded with ASC. Implants were monitored via computed tomography (CT) over the course of 4 months of in vivo implantation and compared to both open lesions and autologous explants. ICRS II evaluation indicated that defects with ASC-seeded scaffolds had healing that most closely resembled the aulogous explant. Scaffold-facilitated subchondral bone repair mimicked the structure of native bone tissue, but cartilage matrix staining was not apparent within the scaffold. The open lesions had the highest volumetric infill detected using CT analysis (p < 0.05), but the repair tissue was largely disorganized. The acellular scaffold without a tidemark had significantly more volumetric filling than either the acellular or ASC seeded groups containing a tidemark (p < 0.05), suggesting that the tidemark limited cell infiltration into the cartilage portion of the scaffold. Overall, scaffold groups repaired the defect more successfully than an open lesion but achieved limited repair in the cartilage region. With further optimization, this approach holds potential to treat focal cartilage lesions in a highly personalized manner using a human patient's own ASC cells.
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Affiliation(s)
- Rachel C Nordberg
- College of Engineering, University of Missouri, Columbia, Missouri, USA.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA
| | - Pedro Huebner
- Department of Industrial and Systems Engineering, North Carolina State University, Raleigh, North Carolina, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA.,School of Industrial and Systems Engineering, University of Oklahoma, Norman, Oklahoma, USA
| | - Karl G Schuchard
- Department of Industrial and Systems Engineering, North Carolina State University, Raleigh, North Carolina, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA
| | - Liliana F Mellor
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA
| | - Rohan A Shirwaiker
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA.,Department of Industrial and Systems Engineering, North Carolina State University, Raleigh, North Carolina, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA
| | - Elizabeth G Loboa
- College of Engineering, University of Missouri, Columbia, Missouri, USA.,Office of the Provost, Southern Methodist University, Dallas, Texas, USA
| | - Jeffery T Spang
- Department of Orthopaedics, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
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67
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Ultrasound augmenting injectable chemotaxis hydrogel for articular cartilage repair in osteoarthritis. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.12.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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68
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Cai X, Daniels O, Cucchiarini M, Madry H. Ectopic models recapitulating morphological and functional features of articular cartilage. Ann Anat 2021; 237:151721. [PMID: 33753232 DOI: 10.1016/j.aanat.2021.151721] [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: 01/22/2021] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Articular cartilage is an extremely specialized connective tissue which covers all diarthrodial joints. Implantation of chondrogenic cells without or with additional biomaterial scaffolds in ectopic locationsin vivo generates substitutes of cartilage with structural and functional characteristics that are used in fundamental investigations while also serving as a basis for translational studies. METHODS Literature search in Pubmed. RESULTS AND DISCUSSION This narrative review summarizes the most relevant ectopic models, among which subcutaneous, intramuscular, and kidney capsule transplantation and elaborates on implanted cells and biomaterial scaffolds and on their use to recapitulate morphological and functional features of articular cartilage. Although the absence of a physiological joint environment and biomechanical stimuli is the major limiting factor, ectopic models are an established component for articular cartilage research aiming to generate a bridge between in vitro data and the clinically more relevant translational orthotopic in vivo models when their limitations are considered.
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Affiliation(s)
- Xiaoyu Cai
- Center of Experimental Orthopaedics, Saarland University, Homburg, Germany
| | - Oliver Daniels
- Center of Experimental Orthopaedics, Saarland University, Homburg, Germany
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University, Homburg, Germany
| | - Henning Madry
- Center of Experimental Orthopaedics, Saarland University, Homburg, Germany.
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69
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Campos Y, Sola FJ, Fuentes G, Quintanilla L, Almirall A, Cruz LJ, Rodríguez-Cabello JC, Tabata Y. The Effects of Crosslinking on the Rheology and Cellular Behavior of Polymer-Based 3D-Multilayered Scaffolds for Restoring Articular Cartilage. Polymers (Basel) 2021; 13:907. [PMID: 33809430 PMCID: PMC7999668 DOI: 10.3390/polym13060907] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/11/2021] [Accepted: 03/12/2021] [Indexed: 01/10/2023] Open
Abstract
Polymer-based tri-layered (bone, intermediate and top layers) scaffolds used for the restoration of articular cartilage were prepared and characterized in this study to emulate the concentration gradient of cartilage. The scaffolds were physically or chemically crosslinked. In order to obtain adequate scaffolds for the intended application, the impact of the type of calcium phosphate used in the bone layer, the polymer used in the intermediate layer and the interlayer crosslinking process were analyzed. The correlation among SEM micrographs, physical-chemical characterization, swelling behavior, rheological measurements and cell studies were examined. Storage moduli at 1 Hz were 0.3-1.7 kPa for physically crosslinked scaffolds, and 4-5 kPa (EDC/NHS system) and 15-20 kPa (glutaraldehyde) for chemically crosslinked scaffolds. Intrinsic viscoelasticity and poroelasticity were considered in discussing the physical mechanism dominating in different time/frequency scales. Cell evaluation showed that all samples are available as alternatives to repair and/or substitute cartilage in articular osteoarthritis.
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Affiliation(s)
- Yaima Campos
- Centro de Biomateriales, Universidad de La Habana, ave Universidad e/G y Ronda, Vedado, Plaza, La Habana CP 10400, Cuba; (Y.C.); (F.J.S.); (A.A.)
- TNI Group, Department of Radiology, LUMC, Albinusdreef 2, 2333 ZA Leiden, The Netherlands;
| | - Francisco J. Sola
- Centro de Biomateriales, Universidad de La Habana, ave Universidad e/G y Ronda, Vedado, Plaza, La Habana CP 10400, Cuba; (Y.C.); (F.J.S.); (A.A.)
| | - Gastón Fuentes
- Centro de Biomateriales, Universidad de La Habana, ave Universidad e/G y Ronda, Vedado, Plaza, La Habana CP 10400, Cuba; (Y.C.); (F.J.S.); (A.A.)
- TNI Group, Department of Radiology, LUMC, Albinusdreef 2, 2333 ZA Leiden, The Netherlands;
- Laboratory of Biomaterials, Department of Regeneration Science and Engineering, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto 606-8507, Japan;
- Bioforge Group, Campus Miguel Delibes, CIBER-BBN, Universidad de Valladolid, Edificio LUCIA, Paseo Belén 19, 47011 Valladolid, Spain; (L.Q.); (J.C.R.-C.)
| | - Luis Quintanilla
- Bioforge Group, Campus Miguel Delibes, CIBER-BBN, Universidad de Valladolid, Edificio LUCIA, Paseo Belén 19, 47011 Valladolid, Spain; (L.Q.); (J.C.R.-C.)
| | - Amisel Almirall
- Centro de Biomateriales, Universidad de La Habana, ave Universidad e/G y Ronda, Vedado, Plaza, La Habana CP 10400, Cuba; (Y.C.); (F.J.S.); (A.A.)
- Laboratory of Biomaterials, Department of Regeneration Science and Engineering, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto 606-8507, Japan;
| | - Luis J. Cruz
- TNI Group, Department of Radiology, LUMC, Albinusdreef 2, 2333 ZA Leiden, The Netherlands;
| | - José C. Rodríguez-Cabello
- Bioforge Group, Campus Miguel Delibes, CIBER-BBN, Universidad de Valladolid, Edificio LUCIA, Paseo Belén 19, 47011 Valladolid, Spain; (L.Q.); (J.C.R.-C.)
| | - Yasuhiko Tabata
- Laboratory of Biomaterials, Department of Regeneration Science and Engineering, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto 606-8507, Japan;
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70
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Tortorici M, Petersen A, Ehrhart K, Duda GN, Checa S. Scaffold-Dependent Mechanical and Architectural Cues Guide Osteochondral Defect Healing in silico. Front Bioeng Biotechnol 2021; 9:642217. [PMID: 33659244 PMCID: PMC7917217 DOI: 10.3389/fbioe.2021.642217] [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] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 01/22/2021] [Indexed: 11/13/2022] Open
Abstract
Osteochondral defects in joints require surgical intervention to relieve pain and restore function. However, no current treatment enables a complete reconstitution of the articular surface. It is known that both mechanical and biological factors play a key role on osteochondral defect healing, however the underlying principles and how they can be used in the design of treatment strategies remain largely unknown. To unravel the underlying principles of mechanobiology in osteochondral defect healing, i.e., how mechanical stimuli can guide biological tissue formation, we employed a computational approach investigating the scaffold-associated mechanical and architectural properties that would enable a guided defect healing. A previous computer model of the knee joint was further developed to simulate healing of an empty osteochondral defect. Then, scaffolds were implanted in the defect and their architectures and material properties were systematically varied to identify their relevance in osteochondral defect healing. Scaffold mechanical and architectural properties were capable of influencing osteochondral defect healing. Specifically, scaffold material elastic modulus values in the range of cancellous bone (low GPa range) and a scaffold architecture that provided stability, i.e., resistance against displacement, in both the main loading direction and perpendicular to it supported the repair process. The here presented model, despite its simplifications, is regarded as a powerful tool to screen for promising properties of novel scaffold candidates fostering osteochondral defect regeneration prior to their implementation in vivo.
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Affiliation(s)
- Martina Tortorici
- Julius Wolff Institute, Charité Universitaetsmedizin Berlin, Berlin, Germany.,Berlin-Branderburg School for Regenerative Therapies, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Ansgar Petersen
- Julius Wolff Institute, Charité Universitaetsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Klara Ehrhart
- Julius Wolff Institute, Charité Universitaetsmedizin Berlin, Berlin, Germany.,Continuum Mechanics and Material Theory, Faculty V of Mechanical Engineering and Transport Systems, Institute of Mechanics, Technische Universtitaet Berlin, Berlin, Germany
| | - Georg N Duda
- Julius Wolff Institute, Charité Universitaetsmedizin Berlin, Berlin, Germany.,Berlin-Branderburg School for Regenerative Therapies, Charité Universitaetsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Sara Checa
- Julius Wolff Institute, Charité Universitaetsmedizin Berlin, Berlin, Germany.,Berlin-Branderburg School for Regenerative Therapies, Charité Universitaetsmedizin Berlin, Berlin, Germany
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71
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Kim H, Kumbar SG, Nukavarapu SP. Biomaterial-directed cell behavior for tissue engineering. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2021; 17:100260. [PMID: 33521410 PMCID: PMC7839921 DOI: 10.1016/j.cobme.2020.100260] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Successful tissue regeneration strategies focus on the use of novel biomaterials, structures, and a variety of cues to control cell behavior and promote regeneration. Studies discovered how biomaterial/ structure cues in the form of biomaterial chemistry, material stiffness, surface topography, pore, and degradation properties play an important role in controlling cellular events in the contest of in vitro and in vivo tissue regeneration. Advanced biomaterials structures and strategies are developed to focus on the delivery of bioactive factors, such as proteins, peptides, and even small molecules to influence cell behavior and regeneration. The present article is an effort to summarize important findings and further discuss biomaterial strategies to influence and control cell behavior directly via physical and chemical cues. This article also touches on various modern methods in biomaterials processing to include bioactive factors as signaling cues to program cell behavior for tissue engineering and regenerative medicine.
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Affiliation(s)
- Hyun Kim
- Biomedical Engineering, University of Connecticut, Storrs-06269
| | - Sangamesh G. Kumbar
- Biomedical Engineering, University of Connecticut, Storrs-06269
- Materials Science & Engineering, University of Connecticut, Storrs-06269
- Orthopaedic Surgery, University of Connecticut Health, Farmington-06030
| | - Syam P. Nukavarapu
- Biomedical Engineering, University of Connecticut, Storrs-06269
- Materials Science & Engineering, University of Connecticut, Storrs-06269
- Orthopaedic Surgery, University of Connecticut Health, Farmington-06030
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72
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Yang J, Qin H, Chai Y, zhang P, Chen Y, Yang K, Qin M, Zhang Y, Xia H, Ren L, Yu B. Molecular mechanisms of osteogenesis and antibacterial activity of Cu-bearing Ti alloy in a bone defect model with infection in vivo. J Orthop Translat 2021; 27:77-89. [PMID: 33437640 PMCID: PMC7779545 DOI: 10.1016/j.jot.2020.10.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 10/03/2020] [Accepted: 10/08/2020] [Indexed: 01/28/2023] Open
Abstract
OBJECTIVE The antibacterial activity of copper (Cu)-alloy biomaterials has shown a great potential in clinical application. Here, we evaluated the osteogenesis and antibacterial effects of Ti6Al4V-6.5wt%Cu alloy in an in vivo model of infected bone defects and determine their responsible proteins and pathways using proteomics. METHODS After bone defects were filled with Ti6Al4V and Ti6Al4V-6.5wt%Cu implants for 6 week, the tissue and bone samples around the implants were harvested for radiographic, micro-CT, histological, and bone-related gene expression analyses. An iTRAQ-based protein identification/quantification approach was used to analyze the osteogenic and antibacterial effects of Ti6Al4V-6.5wt%Cu alloy. RESULTS Imaging and histological results showed Ti6Al4V alloy induced a stronger inflammatory response than Ti6Al4V-6.5wt%Cu alloy; imaging results and osteogenic protein levels showed Ti6Al4V-6.5wt%Cu alloy exerted a stronger osteogenic effect. In vitro experiment, we found the Ti6Al4V-6.5wt%Cu had significant antibacterial effects and inhibited the activity of Staphylococcus aureus in the early stage. In addition, the bacterial biofilm formed in Ti6Al4V-6.5wt%Cu group was significantly lower than that in Ti6Al4V group. Proteomic screening of 4279 proteins resulted in 35 differentially expressed proteins for further examination which were mainly associated with the cellular process, metabolic process, stimulus response, and cellular component organization. In further exploration of the mechanism of osteogenic mineralization of Ti6Al4V-6.5wt%Cu alloy, we found out SDC4 and AGRN were the top two target proteins associated with osteogenic differentiation and bone mineralization. CONCLUSION Ti6Al4V-6.5wt%Cu alloy shows a great potential as a bone implant material due to its positive effects against bacterial infection and on bone formation. THE TRANSLATIONAL POTENTIAL OF THIS ARTICLE At present, titanium alloys and other non-antibacterial metal materials are used in orthopedic internal fixation operations. Our study demonstrates that Ti6Al4V-6.5wt%Cu alloy has good antibacterial and osteogenic effects in vivo and in vitro. This means that Ti6Al4V-6.5wt%Cu alloy may become a new kind of antimicrobial metallic material as internal fixation material to continuously exert its antimicrobial effects and reduce the infection rate after clinical internal fixation.
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Key Words
- AGRN, Agrin
- ALP, alkaline phosphatase
- Antibacterial
- BV, bone volume
- Bone defect
- DEPs, differentially expressed proteins
- EDTA, Ethylene Diamine Tetraacetic Acid
- ESI, Electrospray Ionization
- LC, Liquid Chromatography
- OCN, osteocalcin
- OPN, osteopontin
- Osteogenesis
- PPI, protein-to-protein interacting
- S. Aureus, staphylococcus aureus
- SCX, Strong Cation Exchange
- SDC4, Syndecan 4
- SEM, scanning electron microscope
- TV, tissue volume
- Tb.N, trabecular number
- Tb.Sp, trabecular separation
- Tb.Th, trabecular thickness
- Ti6Al4V-6.5wt%Cu alloy
- UV, ultraviolet
- XRD, X-Ray Diffraction
- cfu, colony-forming unit
- hBMSCs, human bone marrow stromal cells
- iTRAQ, isobaric Tags for Relative and Absolute Quantitation
- isobaric tags for relative and absolute quantification(iTRAQ) analysis
- micro-CT, microcomputed tomography
- pAGC, predictive Automatic Gain Control
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Affiliation(s)
- Jun Yang
- Department of Orthopaedics, Nanfang Hospital, Southern Medical University; Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
- Department of Orthopaedics, Guangzhou General Hospital of Guangzhou Military Command of PLA, Guangdong Key Lab of Orthopaedic Technology and Implant Materials, Key Laboratory of Trauma & Tissue Repair of Tropical Area of PLA, Guangzhou 510010, China
| | - Hanjun Qin
- Department of Orthopaedics, Nanfang Hospital, Southern Medical University; Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Yu Chai
- Department of Orthopaedics, Nanfang Hospital, Southern Medical University; Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Ping zhang
- Department of Orthopaedics, Nanfang Hospital, Southern Medical University; Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Yirong Chen
- Department of Orthopaedics, Nanfang Hospital, Southern Medical University; Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Min Qin
- School of Public Health, Experimental Teaching Center of Preventive Medicine, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Yifang Zhang
- Editorial Office, Chinese Journal of Orthopaedic Trauma, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Hong Xia
- Department of Orthopaedics, Guangzhou General Hospital of Guangzhou Military Command of PLA, Guangdong Key Lab of Orthopaedic Technology and Implant Materials, Key Laboratory of Trauma & Tissue Repair of Tropical Area of PLA, Guangzhou 510010, China
| | - Ling Ren
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Bin Yu
- Department of Orthopaedics, Nanfang Hospital, Southern Medical University; Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
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73
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Morouço P, Fernandes C, Lattanzi W. Challenges and Innovations in Osteochondral Regeneration: Insights from Biology and Inputs from Bioengineering toward the Optimization of Tissue Engineering Strategies. J Funct Biomater 2021; 12:17. [PMID: 33673516 PMCID: PMC7931100 DOI: 10.3390/jfb12010017] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 02/17/2021] [Accepted: 02/23/2021] [Indexed: 02/06/2023] Open
Abstract
Due to the extremely high incidence of lesions and diseases in aging population, it is critical to put all efforts into developing a successful implant for osteochondral tissue regeneration. Many of the patients undergoing surgery present osteochondral fissure extending until the subchondral bone (corresponding to a IV grade according to the conventional radiographic classification by Berndt and Harty). Therefore, strategies for functional tissue regeneration should also aim at healing the subchondral bone and joint interface, besides hyaline cartilage. With the ambition of contributing to solving this problem, several research groups have been working intensively on the development of tailored implants that could promote that complex osteochondral regeneration. These implants may be manufactured through a wide variety of processes and use a wide variety of (bio)materials. This review aimed to examine the state of the art regarding the challenges, advantages, and drawbacks of the current strategies for osteochondral regeneration. One of the most promising approaches relies on the principles of additive manufacturing, where technologies are used that allow for the production of complex 3D structures with a high level of control, intended and predefined geometry, size, and interconnected pores, in a reproducible way. However, not all materials are suitable for these processes, and their features should be examined, targeting a successful regeneration.
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Affiliation(s)
| | | | - Wanda Lattanzi
- Department of Life Science and Public Health, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
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74
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Wang Y, Guo Y, Wei Q, Li X, Ji K, Zhang K. Current researches on design and manufacture of biopolymer-based osteochondral biomimetic scaffolds. Biodes Manuf 2021. [DOI: 10.1007/s42242-020-00119-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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75
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Davis S, Roldo M, Blunn G, Tozzi G, Roncada T. Influence of the Mechanical Environment on the Regeneration of Osteochondral Defects. Front Bioeng Biotechnol 2021; 9:603408. [PMID: 33585430 PMCID: PMC7873466 DOI: 10.3389/fbioe.2021.603408] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 01/04/2021] [Indexed: 12/20/2022] Open
Abstract
Articular cartilage is a highly specialised connective tissue of diarthrodial joints which provides a smooth, lubricated surface for joint articulation and plays a crucial role in the transmission of loads. In vivo cartilage is subjected to mechanical stimuli that are essential for cartilage development and the maintenance of a chondrocytic phenotype. Cartilage damage caused by traumatic injuries, ageing, or degradative diseases leads to impaired loading resistance and progressive degeneration of both the articular cartilage and the underlying subchondral bone. Since the tissue has limited self-repairing capacity due its avascular nature, restoration of its mechanical properties is still a major challenge. Tissue engineering techniques have the potential to heal osteochondral defects using a combination of stem cells, growth factors, and biomaterials that could produce a biomechanically functional tissue, representative of native hyaline cartilage. However, current clinical approaches fail to repair full-thickness defects that include the underlying subchondral bone. Moreover, when tested in vivo, current tissue-engineered grafts show limited capacity to regenerate the damaged tissue due to poor integration with host cartilage and the failure to retain structural integrity after insertion, resulting in reduced mechanical function. The aim of this review is to examine the optimal characteristics of osteochondral scaffolds. Additionally, an overview on the latest biomaterials potentially able to replicate the natural mechanical environment of articular cartilage and their role in maintaining mechanical cues to drive chondrogenesis will be detailed, as well as the overall mechanical performance of grafts engineered using different technologies.
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Affiliation(s)
- Sarah Davis
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, United Kingdom
| | - Marta Roldo
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, United Kingdom
| | - Gordon Blunn
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, United Kingdom
| | - Gianluca Tozzi
- Zeiss Global Centre, School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth, United Kingdom
| | - Tosca Roncada
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, United Kingdom
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76
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Hua L, Lei T, Qian H, Zhang Y, Hu Y, Lei P. 3D-printed porous tantalum: recent application in various drug delivery systems to repair hard tissue defects. Expert Opin Drug Deliv 2021; 18:625-634. [PMID: 33270470 DOI: 10.1080/17425247.2021.1860015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
INTRODUCTION The treatment of hard tissue defects, especially those of bone and cartilage, induced by infections or tumors remains challenging. Traditional methods, including debridement with systematic chemotherapy, have shortcomings owing to their inability to eliminate infections and high systematic toxicity. AREA COVERED This review comprehensively summarizes and discusses the current applications of 3D-printed porous tantalum (3D-P-p-Ta), a novel drug delivery strategy, in drug delivery systems to repair hard tissue defects, as well as the limitations of existing data and potential future research directions. EXPERT OPINION Drug delivery systems have advanced medical treatments, with the advantages of high local drug concentration, long drug-release period, and minimal systematic toxicity. Due to its excellent biocompatibility, ideal mechanical property, and anti-corrosion ability, porous tantalum is one of the most preferable loading scaffolds. 3D printing allows for freedom of design and facilitates the production of regular porous implants with high repeatability. There are several reports on the application of 3D-P-p-Ta in drug delivery systems for the management of infection- or tumor-associated bone defects, yet, to the best of our knowledge, no reviews have summarized the current research progress.
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Affiliation(s)
- Long Hua
- Department of Orthopedics, Xiangya Hospital Central South University, Changsha Hunan, China.,Department of Orthopedics, No.6 Affiliated Hospital Xinjiang Medical University, Urumqi Xinjiang, China
| | - Ting Lei
- Department of Orthopedics, Xiangya Hospital Central South University, Changsha Hunan, China
| | - Hu Qian
- Department of Orthopedics, Xiangya Hospital Central South University, Changsha Hunan, China
| | - Yu Zhang
- Department of Orthopedics, Xiangya Hospital Central South University, Changsha Hunan, China
| | - Yihe Hu
- Department of Orthopedics, Xiangya Hospital Central South University, Changsha Hunan, China
| | - Pengfei Lei
- Department of Orthopedics, Xiangya Hospital Central South University, Changsha Hunan, China.,Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Changsha, Hunan, China
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77
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Characterization of Properties, In Vitro and In Vivo Evaluation of Calcium Phosphate/Amino Acid Cements for Treatment of Osteochondral Defects. MATERIALS 2021; 14:ma14020436. [PMID: 33477289 PMCID: PMC7830446 DOI: 10.3390/ma14020436] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/08/2021] [Accepted: 01/12/2021] [Indexed: 12/13/2022]
Abstract
Novel calcium phosphate cements containing a mixture of four amino acids, glycine, proline, hydroxyproline and either lysine or arginine (CAL, CAK) were characterized and used for treatment of artificial osteochondral defects in knee. It was hypothesized that an enhanced concentration of extracellular collagen amino acids (in complex mixture), in connection with bone cement in defect sites, would support the healing of osteochondral defects with successful formation of hyaline cartilage and subchondral bone. Calcium phosphate cement mixtures were prepared by in situ reaction in a planetary ball mill at aseptic conditions and characterized. It was verified that about 30–60% of amino acids remained adsorbed on hydroxyapatite particles in cements and the addition of amino acids caused around 60% reduction in compressive strength and refinement of hydroxyapatite particles in their microstructure. The significant over-expression of osteogenic genes after the culture of osteoblasts was demonstrated in the cement extracts containing lysine and compared with other cements. The cement pastes were inserted into artificial osteochondral defects in the medial femoral condyle of pigs and, after 3 months post-surgery, tissues were analyzed macroscopically, histologically, immunohistochemically using MRI and X-ray methods. Analysis clearly showed the excellent healing process of artificial osteochondral defects in pigs after treatment with CAL and CAK cements without any inflammation, as well as formation of subchondral bone and hyaline cartilage morphologically and structurally identical to the original tissues. Good integration of the hyaline neocartilage with the surrounding tissue, as well as perfect interconnection between the neocartilage and new subchondral bone tissue, was demonstrated. Tissues were stable after 12 months’ healing.
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78
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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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79
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Monaco G, El Haj AJ, Alini M, Stoddart MJ. Ex Vivo Systems to Study Chondrogenic Differentiation and Cartilage Integration. J Funct Morphol Kinesiol 2021; 6:E6. [PMID: 33466400 PMCID: PMC7838775 DOI: 10.3390/jfmk6010006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/18/2020] [Accepted: 12/23/2020] [Indexed: 12/21/2022] Open
Abstract
Articular cartilage injury and repair is an issue of growing importance. Although common, defects of articular cartilage present a unique clinical challenge due to its poor self-healing capacity, which is largely due to its avascular nature. There is a critical need to better study and understand cellular healing mechanisms to achieve more effective therapies for cartilage regeneration. This article aims to describe the key features of cartilage which is being modelled using tissue engineered cartilage constructs and ex vivo systems. These models have been used to investigate chondrogenic differentiation and to study the mechanisms of cartilage integration into the surrounding tissue. The review highlights the key regeneration principles of articular cartilage repair in healthy and diseased joints. Using co-culture models and novel bioreactor designs, the basis of regeneration is aligned with recent efforts for optimal therapeutic interventions.
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Affiliation(s)
- Graziana Monaco
- AO Research Institute Davos, Clavadelerstrasse 8, CH-7270 Davos Platz, Switzerland; (G.M.); (M.A.)
- School of Pharmacy & Bioengineering Research, University of Keele, Keele ST5 5BG, UK;
| | - Alicia J. El Haj
- School of Pharmacy & Bioengineering Research, University of Keele, Keele ST5 5BG, UK;
- Healthcare Technology Institute, Translational Medicine, School of Chemical Engineering, University of Birmingham, Birmingham B15 2TH, UK
| | - Mauro Alini
- AO Research Institute Davos, Clavadelerstrasse 8, CH-7270 Davos Platz, Switzerland; (G.M.); (M.A.)
| | - Martin J. Stoddart
- AO Research Institute Davos, Clavadelerstrasse 8, CH-7270 Davos Platz, Switzerland; (G.M.); (M.A.)
- School of Pharmacy & Bioengineering Research, University of Keele, Keele ST5 5BG, UK;
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80
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Fan Z, Chen Z, Zhang H, Nie Y, Xu S. Gradient Mineralized and Porous Double-Network Hydrogel Effectively Induce the Differentiation of BMSCs into Osteochondral Tissue In Vitro for Potential Application in Cartilage Repair. Macromol Biosci 2020; 21:e2000323. [PMID: 33356012 DOI: 10.1002/mabi.202000323] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/02/2020] [Indexed: 02/06/2023]
Abstract
At present, it is a considerable challenge to mimic the complex architecture of osteochondral (OC) tissue. In this study, a porous and gradient mineralized double-network hydrogel is synthesized and used to induce bone marrow mesenchymal stem cells (BMSCs) to differentiate into the desired OC tissue depending only on the material and mechanical properties. Physical and chemical characterizations show that hydroxyapatite nanoparticles grow and fill into the pores of the hydrogel, and their content presents a gradient change in different layers of hydrogel. The synthesized hydrogel has excellent mechanical properties and the compression strength with different mineralization degrees varies from 27 to 380 kPa, which fully meets the needs of increased mechanical strength of articular cartilage from the surface to the deep layer. Besides, the synthesized hydrogel has good biocompatibility that can promote the proliferation and growth of BMSCs. More importantly, the results of histochemistry, immunohistochemistry, and real time polymerase chain reaction show that gradient mineralized hydrogel can induce BMSCs to differentiate into the desired chondrocytes and osteoblasts in different layers of hydrogels, indicating that OC tissues can be successfully constructed through a simple induction differentiation of gradient mineralized hydrogel.
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Affiliation(s)
- Zengjie Fan
- School of Stomatology, Lanzhou University, Lanzhou, Gansu, 730000, P. R. China
| | - Zizi Chen
- School of Stomatology, Lanzhou University, Lanzhou, Gansu, 730000, P. R. China
| | - Hui Zhang
- School of Stomatology, Lanzhou University, Lanzhou, Gansu, 730000, P. R. China
| | - Yingying Nie
- Institute of Sensing Technology, Gansu Academy of Sciences, Lanzhou, Gansu, 730000, P. R. China
| | - Shumei Xu
- Department of General Surgery, the 940th Hospital of Joint Logistics Support Force, PLA, Lanzhou, Gansu, 730050, P. R. China
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81
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O'Connor SK, Katz DB, Oswald SJ, Groneck L, Guilak F. Formation of Osteochondral Organoids from Murine Induced Pluripotent Stem Cells. Tissue Eng Part A 2020; 27:1099-1109. [PMID: 33191853 DOI: 10.1089/ten.tea.2020.0273] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis is a debilitating joint disease that is characterized by pathologic changes in both cartilage and bone, potentially involving cross talk between these tissues that is complicated by extraneous factors that are difficult to study in vivo. To create a model system of these cartilage-bone interactions, we developed an osteochondral organoid from murine induced pluripotent stem cells (iPSCs). Using this approach, we grew organoids from a single cell type through time-dependent sequential exposure of growth factors, namely transforming growth factor β-3 and bone morphogenic protein 2, to mirror bone development through endochondral ossification. The result is a cartilaginous region and a calcified bony region comprising an organoid with the potential for joint disease drug screening and investigation of genetic risk in a patient or disease-specific manner. Furthermore, we also investigated the possibility of the differentiated cells within the organoid to revert to a pluripotent state. It was found that while the cells themselves maintain the capacity for reinduction of pluripotency, encapsulation in the newly formed 3D matrix prevents this process from occurring, which could have implications for future clinical use of iPSCs.
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Affiliation(s)
- Shannon K O'Connor
- Department of Orthopaedic Surgery, Washington University in St. Louis, St. Louis, Missouri, USA.,Shriners Hospitals for Children, St. Louis, St. Louis, Missouri, USA.,Department of Biomedical Engineering, Duke University, Durham, North Carolina, USA
| | - Dakota B Katz
- Department of Orthopaedic Surgery, Washington University in St. Louis, St. Louis, Missouri, USA.,Shriners Hospitals for Children, St. Louis, St. Louis, Missouri, USA.,Department of Biomedical Engineering, Washington University, St. Louis, Missouri, USA.,Center of Regenerative Medicine, Washington University, St. Louis, Missouri, USA
| | - Sara J Oswald
- Department of Orthopaedic Surgery, Washington University in St. Louis, St. Louis, Missouri, USA.,Shriners Hospitals for Children, St. Louis, St. Louis, Missouri, USA.,Center of Regenerative Medicine, Washington University, St. Louis, Missouri, USA
| | - Logan Groneck
- Department of Orthopaedic Surgery, Washington University in St. Louis, St. Louis, Missouri, USA.,Shriners Hospitals for Children, St. Louis, St. Louis, Missouri, USA.,Department of Biomedical Engineering, Washington University, St. Louis, Missouri, USA
| | - Farshid Guilak
- Department of Orthopaedic Surgery, Washington University in St. Louis, St. Louis, Missouri, USA.,Shriners Hospitals for Children, St. Louis, St. Louis, Missouri, USA.,Department of Biomedical Engineering, Washington University, St. Louis, Missouri, USA.,Center of Regenerative Medicine, Washington University, St. Louis, Missouri, USA
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82
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Dorcemus DL, Kim HS, Nukavarapu SP. Gradient scaffold with spatial growth factor profile for osteochondral interface engineering. Biomed Mater 2020; 16. [PMID: 33291092 DOI: 10.1088/1748-605x/abd1ba] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 12/08/2020] [Indexed: 11/11/2022]
Abstract
Osteochondral (OC) matrix design poses a significant engineering challenge due to the complexity involved with bone-cartilage interfaces. To better facilitate the regeneration of OC tissue, we developed and evaluated a biodegradable matrix with uniquely arranged bone and cartilage supporting phases: a poly(lactic-co-glycolic) acid (PLGA) template structure with a porosity gradient along its longitudinal axis uniquely integrated with hyaluronic acid hydrogel. Micro-CT scanning and imaging confirmed the formation of an inverse gradient matrix. Hydroxyapatite was added to the PLGA template which was then plasma-treated to increase hydrophilicity and growth factor affinity. An osteogenic growth factor (bone morphogenetic protein 2; BMP-2) was loaded onto the template scaffold via adsorption, while a chondrogenic growth factor (transforming growth factor beta 1; TGF-β1) was incorporated into the hydrogel phase. Confocal microscopy of the growth factor loaded matrix confirmed the spatial distribution of the two growth factors, with chondrogenic factor confined to the cartilaginous portion and osteogenic factor present throughout the scaffold. We observed spatial differentiation of human mesenchymal stem cells (hMSCs) into cartilage and bone cells in the scaffolds in vitro: cartilaginous regions were marked by increased glycosaminoglycan production, and osteogenesis was seen throughout the graft by alizarin red staining. In a dose-dependent study of BMP-2, hMSC pellet cultures with TGF-β1 and BMP-2 showed synergistic effects on chondrogenesis. These results indicate that development of an inverse gradient matrix can spatially distribute two different growth factors to facilitate chondrogenesis and osteogenesis along different portions of a scaffold, which are key steps needed for formation of an osteochondral interface.
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Affiliation(s)
- Deborah Leonie Dorcemus
- Department of Biomedical Engineering, University of Connecticut, 260 Glenbrook Road, Unit 3247, Storrs, Connecticut, 06269, UNITED STATES
| | - Hyun Sung Kim
- Department of Biomedical Engineering, University of Connecticut, 260 Glenbrook Road, Unit 3247, Storrs, Connecticut, 06269, UNITED STATES
| | - Syam Prasad Nukavarapu
- Department of Biomedical Engineering, University of Connecticut, 260 Glenbrook Road, Unit 3247, Storrs, Connecticut, 06269, UNITED STATES
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83
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Zhou L, Gjvm VO, Malda J, Stoddart MJ, Lai Y, Richards RG, Ki-Wai Ho K, Qin L. Innovative Tissue-Engineered Strategies for Osteochondral Defect Repair and Regeneration: Current Progress and Challenges. Adv Healthc Mater 2020; 9:e2001008. [PMID: 33103381 DOI: 10.1002/adhm.202001008] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/19/2020] [Indexed: 12/20/2022]
Abstract
Clinical treatments for the repair of osteochondral defects (OCD) are merely palliative, not completely curative, and thus enormously unfulfilled challenges. With the in-depth studies of biology, medicine, materials, and engineering technology, the conception of OCD repair and regeneration should be renewed. During the past decades, many innovative tissue-engineered approaches for repairing and regenerating damaged osteochondral units have been widely explored. Various scaffold-free and scaffold-based strategies, such as monophasic, biphasic, and currently fabricated multiphasic and gradient architectures have been proposed and evaluated. Meanwhile, progenitor cells and tissue-specific cells have also been intensively investigated in vivo as well as ex vivo. Concerning bioactive factors and drugs, they have been combined with scaffolds and/or living cells, and even released in a spatiotemporally controlled manner. Although tremendous progress has been achieved, further research and development (R&D) is needed to convert preclinical outcomes into clinical applications. Here, the osteochondral unit structure, its defect classifications, and diagnosis are summarized. Commonly used clinical reparative techniques, tissue-engineered strategies, emerging 3D-bioprinting technologies, and the status of their clinical applications are discussed. Existing challenges to translation are also discussed and potential solutions for future R&D directions are proposed.
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Affiliation(s)
- Liangbin Zhou
- Musculoskeletal Research Laboratory of Department of Orthopedics & Traumatology, and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China
| | - Van Osch Gjvm
- Department of Orthopedics and Department of Otorhinolaryngology, Erasmus MC, University Medical Center, Rotterdam, 3000 CA, The Netherlands
- Department of Biomechanical Engineering, Delft University of Technology (TU Delft), Delft, 2600 AA, The Netherlands
| | - Jos Malda
- Department of Orthopaedics of University Medical Center Utrecht, and Department of Clinical Sciences of Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CS, The Netherlands
| | - Martin J Stoddart
- AO Research Institute Davos, Clavadelerstrasse 8, Davos, CH 7270, Switzerland
| | - Yuxiao Lai
- Centre for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, The Chinese Academy of Sciences, Shenzhen, 518000, China
| | - R Geoff Richards
- AO Research Institute Davos, Clavadelerstrasse 8, Davos, CH 7270, Switzerland
| | - Kevin Ki-Wai Ho
- Musculoskeletal Research Laboratory of Department of Orthopedics & Traumatology, and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China
| | - Ling Qin
- Musculoskeletal Research Laboratory of Department of Orthopedics & Traumatology, and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China
- Centre for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, The Chinese Academy of Sciences, Shenzhen, 518000, China
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84
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Liu X, Wei Y, Xuan C, Liu L, Lai C, Chai M, Zhang Z, Wang L, Shi X. A Biomimetic Biphasic Osteochondral Scaffold with Layer-Specific Release of Stem Cell Differentiation Inducers for the Reconstruction of Osteochondral Defects. Adv Healthc Mater 2020; 9:e2000076. [PMID: 32338462 DOI: 10.1002/adhm.202000076] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/07/2020] [Accepted: 03/31/2020] [Indexed: 01/19/2023]
Abstract
There is a great challenge in regenerating osteochondral defects because they involve lesions of both cartilage and subchondral bone, which have remarkable differences in their chemical compositions and biological lineages. Thus, considering the complicated requirements in osteochondral reconstruction, a biomimetic biphasic osteochondral scaffold (BBOS) with the layer-specific release of stem cell differentiation inducers are developed. The cartilage regeneration layer (cartilage scaffold, CS) in the BBOS contains a hyaluronic acid hydrogel to mimic the composition of cartilage, which is mechanically enhanced by host-guest supramolecular units to control the release of kartogenin (KGN). Additionally, a 3D-printed hydroxyapatite (HAp) scaffold releasing alendronate (ALN) is employed as the bone-regeneration layer (bone scaffold, BS). The two layers are bound by semi-immersion and could regulate the hierarchical targeted differentiation behavior of the stem cells. Compared to the drug-free scaffold, the MSCs in the BBOS could be promoted to differentiate into both chondrocytes and osteoblasts. The in vivo results demonstrate the strong promotion of cartilage or bone regeneration in their respective layers. It is expected that this BBOS with layer-specific inducer release can become a new strategy for osteochondral regeneration.
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Affiliation(s)
- Xuemin Liu
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Yingqi Wei
- Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China
| | - Chengkai Xuan
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Lei Liu
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, China
| | - Chen Lai
- Peking University Shenzhen Institute, Peking University, Shenzhen, 518055, China
| | - Muyuan Chai
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Zhaoguo Zhang
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Lin Wang
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Xuetao Shi
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, China
- Peking University Shenzhen Institute, Peking University, Shenzhen, 518055, China
- China Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, 510005, China
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85
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Barajaa MA, Nair LS, Laurencin CT. Bioinspired Scaffold Designs for Regenerating Musculoskeletal Tissue Interfaces. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2020; 6:451-483. [PMID: 33344758 PMCID: PMC7747886 DOI: 10.1007/s40883-019-00132-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 08/14/2019] [Accepted: 09/13/2019] [Indexed: 12/17/2022]
Abstract
The musculoskeletal system works at a very advanced level of synchrony, where all the physiological movements of the body are systematically performed through well-organized actions of bone in conjunction with all the other musculoskeletal soft tissues, such as ligaments, tendons, muscles, and cartilage through tissue-tissue interfaces. Interfaces are structurally and compositionally complex, consisting of gradients of extracellular matrix components, cell phenotypes as well as biochemical compositions and are important in mediating load transfer between the distinct orthopedic tissues during body movement. When an injury occurs at interface, it must be re-established to restore its function and stability. Due to the structural and compositional complexity found in interfaces, it is anticipated that they presuppose a concomitant increase in the complexity of the associated regenerative engineering approaches and scaffold designs to achieve successful interface regeneration and seamless integration of the engineered orthopedic tissues. Herein, we discuss the various bioinspired scaffold designs utilized to regenerate orthopedic tissue interfaces. First, we start with discussing the structure-function relationship at the interface. We then discuss the current understanding of the mechanism underlying interface regeneration, followed by discussing the current treatment available in the clinic to treat interface injuries. Lastly, we comprehensively discuss the state-of-the-art scaffold designs utilized to regenerate orthopedic tissue interfaces.
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Affiliation(s)
- Mohammed A Barajaa
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Lakshmi S Nair
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
- Raymond & Beverly Sackler Center for Biomedical, Biological, Physical & Engineering Sciences, University of Connecticut Health Center, Farmington, CT, 06030, USA
- Department of Orthopedic Surgery, University of Connecticut Health Center, Farmington, CT, 06030, USA
- Department of Materials Science & Engineering, University of Connecticut, Storrs, CT, 06269, USA
- Institute of Materials Science, University of Connecticut, Storrs, CT, USA
- Department of Chemical & Bimolecular Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Cato T Laurencin
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
- Raymond & Beverly Sackler Center for Biomedical, Biological, Physical & Engineering Sciences, University of Connecticut Health Center, Farmington, CT, 06030, USA
- Department of Orthopedic Surgery, University of Connecticut Health Center, Farmington, CT, 06030, USA
- Department of Materials Science & Engineering, University of Connecticut, Storrs, CT, 06269, USA
- Institute of Materials Science, University of Connecticut, Storrs, CT, USA
- Department of Chemical & Bimolecular Engineering, University of Connecticut, Storrs, CT, 06269, USA
- Department of Craniofacial Sciences, School of Dental Medicine, University of Connecticut Health Center, Farmington, CT, 06030, USA
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86
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Zhu M, He X, Xin C, Zhu Y, Liu Z. 3D printing of an integrated triphasic MBG-alginate scaffold with enhanced interface bonding for hard tissue applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:113. [PMID: 33247359 DOI: 10.1007/s10856-020-06459-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 10/27/2020] [Indexed: 06/12/2023]
Abstract
Osteochondral defects affect both of cartilage and subchondral areas, thus it poses a significant challenge to simultaneously regenerate two parts in orthopedics. Tissue engineering strategy is currently regarded as the most promising way to repair osteochondral defects. This study focuses on developing a multilayered scaffold with enhanced interface bonding through 3D printing. One-shot printing process enables control over material composition, pore structure, and size in each region of the scaffold, while realizes seamlessly integrated construct as well. The scaffold was designed to be triphasic: a porous bone layer composed of alginate sodium (SA) and mesoporous bioactive glasses (MBG), an intermediate dense layer also composed of SA and MBG and a cartilaginous layer composed of SA. The mechanical strength including the interface adhesion strength between layers were characterized. The results indicated that SA crosslinking after 3D printing anchored different materials together and integrated all regions. Additional scaffold soaking in simulated body fluid (SBF) and cell culture medium induced apatite deposition and had weakened the compressive and tensile strengths, while no layer dislocation or delamination occurred.
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Affiliation(s)
- Min Zhu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai, PR China.
| | - Xin He
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai, PR China
| | - Chen Xin
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai, PR China
| | - Yufang Zhu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai, PR China
| | - Zhongtang Liu
- Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, PR China.
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87
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Lu Z, Zhou S, Vaida J, Gao G, Stewart A, Parenti J, Yan L, Pei M. Unfavorable Contribution of a Tissue-Engineering Cartilage Graft to Osteochondral Defect Repair in Young Rabbits. Front Cell Dev Biol 2020; 8:595518. [PMID: 33195273 PMCID: PMC7658375 DOI: 10.3389/fcell.2020.595518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 10/12/2020] [Indexed: 11/17/2022] Open
Abstract
A stem cell-based tissue-engineering approach is a promising strategy for treatment of cartilage defects. However, there are conflicting data in the feasibility of using this approach in young recipients. A young rabbit model with an average age of 7.7 months old was used to evaluate the effect of a tissue-engineering approach on the treatment of osteochondral defects. Following in vitro evaluation of proliferation and chondrogenic capacity of infrapatellar fat pad-derived stem cells (IPFSCs) after expansion on either tissue culture plastic (TCP) or decellularized extracellular matrix (dECM), a premature tissue construct engineered from pretreated IPFSCs was used to repair osteochondral defects in young rabbits. We found that dECM expanded IPFSCs exhibited higher proliferation and chondrogenic differentiation compared to TCP expanded cells in both pellet and tissue construct culture systems. Six weeks after creation of bilateral osteochondral defects in the femoral trochlear groove of rabbits, the Empty group (left untreated) had the best cartilage resurfacing with the highest score in Modified O’Driscoll Scale (MODS) than the other groups; however, this score had no significant difference compared to that of 15-week samples, indicating that young rabbits stop growing cartilage once they reach 9 months old. Interestingly, implantation of premature tissue constructs from both dECM and TCP groups exhibited significantly improved cartilage repair at 15 weeks compared to those at six weeks (about 9 months old), indicating that a tissue-engineering approach is able to repair adult cartilage defects. We also found that implanted pre-labeled cells in premature tissue constructs were undetectable in resurfaced cartilage at both time points. This study suggests that young rabbits (less than 9 months old) might respond differently to the classical tissue-engineering approach that is considered as a potential treatment for cartilage defects in adult rabbits.
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Affiliation(s)
- Zhihua Lu
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States.,Department of Orthopedics, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, China
| | - Sheng Zhou
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
| | - Justin Vaida
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
| | - Gongming Gao
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
| | - Amanda Stewart
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
| | - Joshua Parenti
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
| | - Lianqi Yan
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States.,WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, United States
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88
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Zhang J, Liu Z, Li Y, You Q, Yang J, Jin Y, Zou G, Tang J, Ge Z, Liu Y. FGF2: a key regulator augmenting tendon-to-bone healing and cartilage repair. Regen Med 2020; 15:2129-2142. [PMID: 33201773 DOI: 10.2217/rme-2019-0080] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Ligament/tendon and cartilage injuries are clinically common diseases that perplex most clinicians. Because of the lack of blood vessels and nerves, their self-repairing abilities are rather poor. Therefore, surgeries are necessary and also widely used to treat ligament/tendon or cartilage injuries. However, after surgery, there are still many problems that affect healing. In recent years, it has been found that exogenous FGF2 plays an important role in the repair of ligament/tendon and cartilage injuries and exerts a synergistic effect with endogenous FGF2. Therefore, FGF2 can be used as a new type of biomolecule to accelerate tendon-to-bone healing and cartilage repair after injury.
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Affiliation(s)
- Jun Zhang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Guizhou 563000, China
| | - Ziming Liu
- Peking University Institute of Sports Medicine, Beijing 100083, China
| | - Yuwan Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Qi You
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Guizhou 563000, China
| | - Jibin Yang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Guizhou 563000, China
| | - Ying Jin
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Guizhou 563000, China
| | - Gang Zou
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Guizhou 563000, China
| | - Jingfeng Tang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Guizhou 563000, China
| | - Zhen Ge
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Guizhou 563000, China
| | - Yi Liu
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Guizhou 563000, China
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89
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Qiao Z, Lian M, Han Y, Sun B, Zhang X, Jiang W, Li H, Hao Y, Dai K. Bioinspired stratified electrowritten fiber-reinforced hydrogel constructs with layer-specific induction capacity for functional osteochondral regeneration. Biomaterials 2020; 266:120385. [PMID: 33120203 DOI: 10.1016/j.biomaterials.2020.120385] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 09/02/2020] [Accepted: 09/14/2020] [Indexed: 01/03/2023]
Abstract
Despite significant advances in osteochondral tissue engineering, it remains challenging to successfully reconstruct native-like complex tissues organized in three-dimension with spatially varying compositional, structural and functional properties. In this contribution, inspired by the gradients in extracellular matrix (ECM) composition and collagen fiber architecture in native osteochondral tissue, we designed and fabricated a tri-layered (superficial cartilage (S), deep cartilage (D) and subchondral bone (B) layer) stratified scaffold in which a mesenchymal stem cell (MSC)-laden gelatin methacrylamide (GelMA) hydrogel with zone-specific growth factor delivery was combined with melt electrowritten triblock polymer of poly(ε-caprolactone) and poly(ethylene glycol) (PCEC) networks with depth-dependent fiber organization. Introducing PCEC fibers into the weak GelMA hydrogel contributed to a significant increase in mechanical strength. In vitro biological experiments indicated that the stratified fiber-reinforced and growth factor-loaded hydrogel construct induced the MSCs to differentiate down both the chondrogenic and osteogenic lineages and that the engineered complex exhibited cellular phenotype and matrix accumulation profiles resembling those of the native tissue. Simultaneous cartilage and subchondral bone regeneration were achieved in vivo by using the tri-layered integrated scaffold. More importantly, the inclusion of the S layer could impart the regenerated cartilage with a more lubricating and wear-resistant surface. These findings suggest that the bioinspired construct mimicking the spatial variations of native osteochondral tissue might serve as a promising candidate to enhance osteochondral regeneration.
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Affiliation(s)
- Zhiguang Qiao
- Department of Orthopaedic Surgery, Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China; Clinical and Translational Research Center for 3D Printing Technology, Medical 3D Printing Innovation Research Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong university School of Medicine, Shanghai, 200125, China; Department of Orthopaedic Surgery, Renji Hospital, South Campus, Shanghai Jiao Tong University School of Medicine, Shanghai, 201112, China
| | - Meifei Lian
- Clinical and Translational Research Center for 3D Printing Technology, Medical 3D Printing Innovation Research Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong university School of Medicine, Shanghai, 200125, China; Department of Prosthodontics, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yu Han
- Department of Orthopaedic Surgery, Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China; Clinical and Translational Research Center for 3D Printing Technology, Medical 3D Printing Innovation Research Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong university School of Medicine, Shanghai, 200125, China
| | - Binbin Sun
- Department of Orthopaedic Surgery, Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China; Clinical and Translational Research Center for 3D Printing Technology, Medical 3D Printing Innovation Research Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong university School of Medicine, Shanghai, 200125, China
| | - Xing Zhang
- State Key Laboratory of Mechanical Systems and Vibration, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Wenbo Jiang
- Department of Orthopaedic Surgery, Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China; Clinical and Translational Research Center for 3D Printing Technology, Medical 3D Printing Innovation Research Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong university School of Medicine, Shanghai, 200125, China
| | - Huiwu Li
- Department of Orthopaedic Surgery, Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yongqiang Hao
- Department of Orthopaedic Surgery, Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China; Clinical and Translational Research Center for 3D Printing Technology, Medical 3D Printing Innovation Research Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong university School of Medicine, Shanghai, 200125, China.
| | - Kerong Dai
- Department of Orthopaedic Surgery, Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China; Clinical and Translational Research Center for 3D Printing Technology, Medical 3D Printing Innovation Research Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong university School of Medicine, Shanghai, 200125, China.
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90
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Zhao X, Meng F, Hu S, Yang Z, Huang H, Pang R, Wen X, Kang Y, Zhang Z. The Synovium Attenuates Cartilage Degeneration in KOA through Activation of the Smad2/3-Runx1 Cascade and Chondrogenesis-related miRNAs. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 22:832-845. [PMID: 33230479 PMCID: PMC7658376 DOI: 10.1016/j.omtn.2020.10.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 10/06/2020] [Indexed: 12/19/2022]
Abstract
Knee osteoarthritis (KOA) is a highly prevalent disabling joint disease in aged people. Progressive cartilage degradation is the hallmark of KOA, but its deeper mechanism remains unclear. Substantial evidence indicates the importance of the synovium for joint homeostasis. The present study aimed to determine whether the synovium regulates cartilage metabolism through chondrogenesis-related microRNAs (miRNAs) in the KOA microenvironment. Clinical sample testing and in vitro cell experiments screened out miR-455 and miR-210 as effective miRNAs. The levels of both were significantly reduced in KOA cartilage but increased in KOA synovial fluid compared with controls. We further revealed that transforming growth factor β1 (TGF-β1) can significantly upregulate miR-455 and miR-210 expression in synoviocytes. The upregulated miRNAs can be secreted into the extracellular environment and prevent cartilage degeneration. Through bioinformatics and in vitro experiments, we found that Runx1 can bind to the promoter regions of miR-455 and miR-210 and enhance their transcription in TGF-β1-treated synoviocytes. Collectively, our findings demonstrate a protective effect of the synovium against cartilage degeneration mediated by chondrogenesis-related miRNAs, which suggests that Runx1 is a potential target for KOA therapy.
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Affiliation(s)
- Xiaoyi Zhao
- Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong 510080, PR China
| | - Fangang Meng
- Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong 510080, PR China
| | - Shu Hu
- Department of Orthopedics, Academy of Orthopedics-Guangdong Province, Orthopedic Hospital of Guangdong Province, Third Affiliated Hospital of Southern Medical University, Guangzhou, PR China
| | - Zibo Yang
- Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong 510080, PR China
| | - Hao Huang
- Department of Laboratory Medicine, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, PR China
| | - Rui Pang
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, PR China
| | - Xingzhao Wen
- Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong 510080, PR China
| | - Yan Kang
- Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong 510080, PR China
| | - Zhiqi Zhang
- Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong 510080, PR China
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91
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Mikael PE, Golebiowska AA, Kumbar SG, Nukavarapu SP. Evaluation of Autologously Derived Biomaterials and Stem Cells for Bone Tissue Engineering. Tissue Eng Part A 2020; 26:1052-1063. [PMID: 32375566 PMCID: PMC7580602 DOI: 10.1089/ten.tea.2020.0011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 03/16/2020] [Indexed: 11/12/2022] Open
Abstract
Despite progress, clinical translation of tissue engineering (TE) products/technologies is limited. A significant effort is underway to develop biomaterials and cells through a minimally modified process for clinical translation of TE products. Recently, bone marrow aspirate (BMA) was identified as an autologous source of cells for TE applications and is currently being tested in clinical therapies, but the isolation methods need improvement to avoid potential for contamination and increase progenitor cell yield. To address these issues, we reproducibly processed human peripheral blood (PB) and BMA to develop autologously derived biomaterials and cells. We demonstrated PB-derived biomaterial/gel cross-linking and fibrin gel formation with varied gelation times as well as biocompatibility through support of human bone marrow-derived stem cell survival and growth in vitro. Next, we established a plastic culture-free process that concentrates and increases the yield of CD146+/CD271+ early mesenchymal progenitor cells in BMA (concentrated BMA [cBMA]). cBMA exhibited increased colony formation and multipotency (including chondrogenic differentiation) in vitro compared with standard BMA. PB-derived gels encapsulated with cBMA also demonstrated increased cell proliferation and enhanced mineralization when assessed for bone TE in vitro. This strategy can potentially be developed for use in any tissue regeneration application; however, bone regeneration was used as a test bed for this study.
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Affiliation(s)
- Paiyz E. Mikael
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut, USA
| | | | - Sangamesh G. Kumbar
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut, USA
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut, USA
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, Connecticut, USA
| | - Syam P. Nukavarapu
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut, USA
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut, USA
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, Connecticut, USA
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92
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Fu L, Yang Z, Gao C, Li H, Yuan Z, Wang F, Sui X, Liu S, Guo Q. Advances and prospects in biomimetic multilayered scaffolds for articular cartilage regeneration. Regen Biomater 2020; 7:527-542. [PMID: 33365139 PMCID: PMC7748444 DOI: 10.1093/rb/rbaa042] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 08/13/2020] [Accepted: 09/03/2020] [Indexed: 12/12/2022] Open
Abstract
Due to the sophisticated hierarchical structure and limited reparability of articular cartilage (AC), the ideal regeneration of AC defects has been a major challenge in the field of regenerative medicine. As defects progress, they often extend from the cartilage layer to the subchondral bone and ultimately lead to osteoarthritis. Tissue engineering techniques bring new hope for AC regeneration. To meet the regenerative requirements of the heterogeneous and layered structure of native AC tissue, a substantial number of multilayered biomimetic scaffolds have been studied. Ideal multilayered scaffolds should generate zone-specific functional tissue similar to native AC tissue. This review focuses on the current status of multilayered scaffolds developed for AC defect repair, including design strategies based on the degree of defect severity and the zone-specific characteristics of AC tissue, the selection and composition of biomaterials, and techniques for design and manufacturing. The challenges and future perspectives of biomimetic multilayered scaffold strategies for AC regeneration are also discussed.
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Affiliation(s)
- Liwei Fu
- School of Medicine, Nankai University, No. 94 Weijin Road, Nankai District, Tianjin 300071, China.,Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital, No. 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Zhen Yang
- School of Medicine, Nankai University, No. 94 Weijin Road, Nankai District, Tianjin 300071, China.,Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital, No. 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Cangjian Gao
- School of Medicine, Nankai University, No. 94 Weijin Road, Nankai District, Tianjin 300071, China.,Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital, No. 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Hao Li
- School of Medicine, Nankai University, No. 94 Weijin Road, Nankai District, Tianjin 300071, China.,Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital, No. 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Zhiguo Yuan
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital, No. 28 Fuxing Road, Haidian District, Beijing 100853, China.,Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, No. 160 Pujian Road, Pudong New District, Shanghai 200127, China
| | - Fuxin Wang
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital, No. 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Xiang Sui
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital, No. 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Shuyun Liu
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital, No. 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - Quanyi Guo
- School of Medicine, Nankai University, No. 94 Weijin Road, Nankai District, Tianjin 300071, China.,Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital, No. 28 Fuxing Road, Haidian District, Beijing 100853, China
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93
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Harmon MD, Ramos DM, Nithyadevi D, Bordett R, Rudraiah S, Nukavarapu SP, Moss IL, Kumbar SG. Growing a backbone - functional biomaterials and structures for intervertebral disc (IVD) repair and regeneration: challenges, innovations, and future directions. Biomater Sci 2020; 8:1216-1239. [PMID: 31957773 DOI: 10.1039/c9bm01288e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Back pain and associated maladies can account for an immense amount of healthcare cost and loss of productivity in the workplace. In particular, spine related injuries in the US affect upwards of 5.7 million people each year. The degenerative disc disease treatment almost always arises due to a clinical presentation of pain and/or discomfort. Preferred conservative treatment modalities include the use of non-steroidal anti-inflammatory medications, physical therapy, massage, acupuncture, chiropractic work, and dietary supplements like glucosamine and chondroitin. Artificial disc replacement, also known as total disc replacement, is a treatment alternative to spinal fusion. The goal of artificial disc prostheses is to replicate the normal biomechanics of the spine segment, thereby preventing further damage to neighboring sections. Artificial functional disc replacement through permanent metal and polymer-based components continues to evolve, but is far from recapitulating native disc structure and function, and suffers from the risk of unsuccessful tissue integration and device failure. Tissue engineering and regenerative medicine strategies combine novel material structures, bioactive factors and stem cells alone or in combination to repair and regenerate the IVD. These efforts are at very early stages and a more in-depth understanding of IVD metabolism and cellular environment will also lead to a clearer understanding of the native environment which the tissue engineering scaffold should mimic. The current review focusses on the strategies for a successful regenerative scaffold for IVD regeneration and the need for defining new materials, environments, and factors that are so finely tuned in the healthy human intervertebral disc in hopes of treating such a prevalent degenerative process.
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Affiliation(s)
- Matthew D Harmon
- Department of Materials Science and Engineering, University of Connecticut, Storrs, CT, USA. and Department of Orthopedics Surgery, University of Connecticut Health, Farmington, CT, USA
| | - Daisy M Ramos
- Department of Materials Science and Engineering, University of Connecticut, Storrs, CT, USA. and Department of Orthopedics Surgery, University of Connecticut Health, Farmington, CT, USA
| | - D Nithyadevi
- Department of Orthopedics Surgery, University of Connecticut Health, Farmington, CT, USA
| | - Rosalie Bordett
- Department of Orthopedics Surgery, University of Connecticut Health, Farmington, CT, USA
| | - Swetha Rudraiah
- Department of Pharmaceutical Sciences, University of Saint Joseph, Hartford, CT, USA
| | - Syam P Nukavarapu
- Department of Materials Science and Engineering, University of Connecticut, Storrs, CT, USA. and Department of Orthopedics Surgery, University of Connecticut Health, Farmington, CT, USA and Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA
| | - Isaac L Moss
- Department of Orthopedics Surgery, University of Connecticut Health, Farmington, CT, USA
| | - Sangamesh G Kumbar
- Department of Materials Science and Engineering, University of Connecticut, Storrs, CT, USA. and Department of Orthopedics Surgery, University of Connecticut Health, Farmington, CT, USA and Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA
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94
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Irmak G, Gümüşderelioğlu M. Photo-activated platelet-rich plasma (PRP)-based patient-specific bio-ink for cartilage tissue engineering. Biomed Mater 2020; 15:065010. [PMID: 32985413 DOI: 10.1088/1748-605x/ab9e46] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Nowadays, scientists focus on the development of tissue-specific and personalized bio-ink that can be used in 3D bioprinting technologies. Platelet-rich plasma (PRP) is a person-specific source that is used as a therapeutic adjunct for the treatment of cartilage damage because it offers a cocktail of growth factors that are necessary for wound healing and tissue regeneration. However, PRP treatments in the clinic are not satisfactory and require upgrading, especially the point of maintaining bioactivity. In this study, we presented PRP as a photo-activated and photo-crosslinkable bio-ink in terms of tissue-specific structures for the first time. We achieved long-term and constant rate growth factor release and bioactivity protection of PRP with satisfactory mechanical characteristics. Photo-crosslinked PRP hydrogel was enabled by the addition of microwave-induced methacrylated gelatin (Gel-MA), which is connected to platelets in PRP via integrin receptors in its structure and chemically cross-linked upon UV irradiation (300-500 nm). Photo-activation of PRP was realized by a polychromatic light source in the near-infrared region (PAC, 600-1200 nm). Our results showed that Gel-MA/PRP hydrogels with the desired mechanical properties (low degradation rate and high mechanical strength) released growth factors at a constant rate for the long-term by the periodic PAC application. In vitro cell culture studies (viability, proliferation, morphology, histology, immunochemistry, biochemistry, gene expression analyses) proved that proliferation and differentiation of the ATDC5 cells increased in the periodically light-applied Gel-MA/PRP hydrogel without any external chemical agents.
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Affiliation(s)
- Gülseren Irmak
- Bioengineering Department, Hacettepe University, 06800 Beytepe, Ankara, Turkey
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95
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Thomas T, Rubfiaro AS, Nautiyal P, Brooks R, Dickerson D, He J, Agarwal A. Extrusion 3D Printing of Porous Silicone Architectures for Engineering Human Cardiomyocyte-Infused Patches Mimicking Adult Heart Stiffness. ACS APPLIED BIO MATERIALS 2020; 3:5865-5871. [PMID: 35021814 DOI: 10.1021/acsabm.0c00572] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cardiac patches, three-dimensional (3D) constructs of polymer scaffold and heart muscle cells, have received widespread attention for regenerative therapy to repair damaged heart tissue. The implanted patches should mimic the micromechanical environment of native myocardium for effective integration and optimum mechanical function. In this study, we engineered compliant silicone scaffolds infused with cardiomyocytes (CMs) differentiated from human-induced pluripotent stem cells. Porous scaffolds are fabricated by extrusion 3D printing of room-temperature-vulcanized (RTV) silicone rubber. The stiffness and strength of scaffolds are tailored by designing a polymer strand arrangement during 3D printing. Single-strand scaffold design is found to display a tensile Young's modulus of ∼280 kPa, which is optimum for supporting CMs without impairing their contractility. Uniform distribution of cells in the scaffold is observed, ascribed to 3D migration facilitated by interconnected porous architecture. The patches demonstrated synchronized contraction 10 days after seeding scaffolds with CMs. Indentation measurements reveal that the contracting cell-scaffold patches display local moduli varying from ∼270 to 530 kPa, which covers the upper spectrum of the stiffness range displayed by the human heart. This study demonstrates the effectiveness of a porous 3D scaffold composed of flexible silicone rubber for CMs percolation, supporting a contractile activity, and mimicking native heart stiffness.
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Affiliation(s)
- Tony Thomas
- Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174, United States
| | - Alberto S Rubfiaro
- Department of Physics, Biomolecular Science Institute, Florida International University, Miami, Florida 33199, United States
| | - Pranjal Nautiyal
- Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174, United States
| | - Roy Brooks
- Department of Mechanical Engineering, Universidad Ana G. Mendez, Recinto de Gurabo 00777, Puerto Rico
| | - Darryl Dickerson
- Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174, United States
| | - Jin He
- Department of Physics, Biomolecular Science Institute, Florida International University, Miami, Florida 33199, United States
| | - Arvind Agarwal
- Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174, United States
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96
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Regeneration of the rotator cuff tendon-to-bone interface using umbilical cord-derived mesenchymal stem cells and gradient extracellular matrix scaffolds from adipose tissue in a rat model. Acta Biomater 2020; 114:104-116. [PMID: 32682057 DOI: 10.1016/j.actbio.2020.07.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 07/07/2020] [Accepted: 07/09/2020] [Indexed: 12/17/2022]
Abstract
Regeneration of the gradient structure of the tendon-to-bone interface (TBI) is a crucial goal after rotator cuff repair. The purpose of this study was to investigate the efficacy of a biomimetic hydroxyapatite-gradient scaffold (HA-G scaffold) isolated from adipose tissue (AD) with umbilical cord derived mesenchymal stem cells (UC MSCs) on the regeneration of the structure of the TBI by analyzing the histological and biomechanical changes in a rat repair model. As a result, the HA-G scaffold had progressively increased numbers of hydroxyapatite (HA) particles from the tendon to the bone phase. After seeding UC MSCs to the scaffold, specific matrices, such as collagen, glycoaminoglycan, and calcium, were synthesized with respect to the HA density. In a rat repair model, compared to the repair group, the UC MSCs seeded HA-G scaffold group had improved collagen organization and cartilage formation by 52% at 8 weeks and 262.96% at 4 weeks respectively. Moreover, ultimate failure load also increased by 30.71% at 4 weeks in the UC MSCs seeded HA-G scaffold group compared to the repair group. Especially, the improved values were comparable to values in normal tissue. This study demonstrated that HA-G scaffold isolated from AD induced UC MSCs to form tendon, cartilage and bone matrices similar to the TBI structure according to the HA density. Furthermore, UC MSC-seeded HA-G scaffold regenerated the TBI of the rotator cuff in a rat repair model in terms of histological and biomechanical properties similar to the normal TBI. Statement of Significance We found specific extracellular matrix (ECM) formation in the biomimetic-hydroxyapatite-gradient-scaffold (HA-G-scaffold) in vitro as well as improved histological and biomechanical results of repaired rotator cuff after the scaffold implantation in a rat model. This study has four strengths; An ECM scaffold derived from human adipose tissue; only one-layer used for a gradient scaffold not a multilayer used to mimic the unique structure of the gradient tendon-to-bone-interface (TBI) of the rotator cuff; UC-MSCs as a new cell source for TBI regeneration; and the UC-MSCs synthesized specific matrices with respect to the HA density without any other stimuli. This study suggested that the UC-MSC seeded HA-G-scaffold could be used as a promising strategy for the regeneration of rotator cuff tears.
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97
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Choi JH, Kim N, Rim MA, Lee W, Song JE, Khang G. Characterization and Potential of a Bilayered Hydrogel of Gellan Gum and Demineralized Bone Particles for Osteochondral Tissue Engineering. ACS APPLIED MATERIALS & INTERFACES 2020; 12:34703-34715. [PMID: 32644770 DOI: 10.1021/acsami.0c10415] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Osteochondral (OC) tissue engineering (TE) is a promising strategy to regenerate acute or degenerative chondral and OC lesions. However, advancing a proper model for OC TE is still under way. Herein, a bilayer hydrogel (BH) based on gellan gum (GG) hydrogel and demineralized bone particles (DBPs) is suggested as a new model. The BH composite can be fabricated easily with a cell-friendly biomaterial and cross-linker. The BH composite was characterized by a morphological method and physicochemical aspect. The mechanical and rheological characters were further confirmed to verify its applicability in OC TE. The thermodynamic property of the composite was determined to analyze thermal stability and interaction among matrices. The bioactivity of the material was studied by treating simulated body fluid (SBF) solution for 28 days to examine the formation of crystalline structure in the BH construct. In vitro studies were carried out to study the viability and biochemical characters of the developed biomaterial. An in vivo study was performed to analyze the biocompatibility of the material and regeneration of the injured OC region implanted with BH composites. The data displayed stable physicochemical properties and mechanical characters when the DBPs were incorporated with a proper amount. The bioactivity of the DBP-loaded hydrogels displayed a high amount of apatite formation. The cytotoxicity of the fabricated material was low, which allows application in vitro and in vivo. The biochemical studies displayed a high level of alkaline phosphatase (ALP) activity and gene expression, which shows promising application of DBP-loaded GG in the bone layer of the BH model. The long-term in vivo study displayed excellent biocompatibility and great potential in the OC defected region. Overall, these results suggest the significance of combined and innovative approaches to improve the therapeutic strategies for OC regeneration, and the BH model suggested in this study can be a promising biomaterial model for OC TE.
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Affiliation(s)
- Joo Hee Choi
- Department of BIN Convergence Technology and Department of Polymer Nano Science & Technology Research Center, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Jeollabuk-do, Republic of Korea
| | - Namyoung Kim
- Department of BIN Convergence Technology and Department of Polymer Nano Science & Technology Research Center, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Jeollabuk-do, Republic of Korea
| | - Min A Rim
- Department of BIN Convergence Technology and Department of Polymer Nano Science & Technology Research Center, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Jeollabuk-do, Republic of Korea
| | - Wonchan Lee
- Department of BIN Convergence Technology and Department of Polymer Nano Science & Technology Research Center, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Jeollabuk-do, Republic of Korea
| | - Jeong Eun Song
- Department of BIN Convergence Technology and Department of Polymer Nano Science & Technology Research Center, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Jeollabuk-do, Republic of Korea
| | - Gilson Khang
- Department of BIN Convergence Technology and Department of Polymer Nano Science & Technology Research Center, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Jeollabuk-do, Republic of Korea
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98
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Ayan B, Wu Y, Karuppagounder V, Kamal F, Ozbolat IT. Aspiration-assisted bioprinting of the osteochondral interface. Sci Rep 2020; 10:13148. [PMID: 32753630 PMCID: PMC7403300 DOI: 10.1038/s41598-020-69960-6] [Citation(s) in RCA: 32] [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: 04/27/2020] [Accepted: 07/22/2020] [Indexed: 11/09/2022] Open
Abstract
Osteochondral defects contain damage to both the articular cartilage and underlying subchon- dral bone, which remains a significant challenge in orthopedic surgery. Layered structure of bone, cartilage and the bone-cartilage interface must be taken into account in the case of biofabrication of the osteochondral (OC) interface. In this study, a dual layered OC interface was bioprinted using a newly developed aspiration-assisted bioprinting (AAB) technique, which has been the first time that scaffold-free bioprinting was applied to OC interface engineering. Tissue spheroids, made of human adipose-derived stem cells (ADSCs), were differentiated in three dimensions (3D) into chondrogenic and osteogenic spheroids, which were confirmed by immunostaining and histology qualitatively, and biochemistry assays and gene expression, quantitatively. Remarkably, the OC interface was bioprinted by accurate positioning of a layer of osteogenic spheroids onto a sacrificial alginate support followed by another layer of chondrogenic spheroids overlaid by the same support. Spheroids in individual zones fused and the maintenance of phenotypes in both zones confirmed the successful biofabrication of the histomorphologically-relevant OC interface. The biofabrication of OC tissue model without the use of polymeric scaffolds unveils great potential not only in regenerative medicine but also in drug testing and disease modeling for osteoarthritis.
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Affiliation(s)
- Bugra Ayan
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA
| | - Yang Wu
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA
- School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Vengadeshprabhu Karuppagounder
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Re-Habilitation, Penn State University, Hershey, PA, 17033, USA
| | - Fadia Kamal
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Re-Habilitation, Penn State University, Hershey, PA, 17033, USA
| | - Ibrahim T Ozbolat
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, 16802, USA.
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA.
- Biomedical Engineering Department, Penn State University, University Park, PA, 16802, USA.
- Materials Research Institute, Penn State University, University Park, PA, 16802, USA.
- Department of Neurosurgery, Penn State University, Hershey, PA, 17033, USA.
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99
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Frassica MT, Grunlan MA. Perspectives on Synthetic Materials to Guide Tissue Regeneration for Osteochondral Defect Repair. ACS Biomater Sci Eng 2020; 6:4324-4336. [PMID: 33455185 DOI: 10.1021/acsbiomaterials.0c00753] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Regenerative engineering holds the potential to treat clinically pervasive osteochondral defects (OCDs). In a synthetic materials-guided approach, the scaffold's chemical and physical properties alone instruct cellular behavior in order to effect regeneration, referred to herein as "instructive" properties. While this alleviates the costs and off-target risks associated with exogenous growth factors, the scaffold must be potently instructive to achieve tissue growth. Moreover, toward achieving functionality, such a scaffold should also recapitulate the spatial complexity of the osteochondral tissues. Thus, in addition to the regeneration of the articular cartilage and underlying cancellous bone, the complex osteochondral interface, composed of calcified cartilage and subchondral bone, should also be restored. In this Perspective, we highlight recent synthetic-based, instructive osteochondral scaffolds that have leveraged new material chemistries as well as innovative fabrication strategies. In particular, scaffolds with spatially complex chemical and morphological features have been prepared with electrospinning, solvent-casting-particulate-leaching, freeze-drying, and additive manufacturing. While few synthetic scaffolds have advanced to clinical studies to treat OCDs, these recent efforts point to the promising use of the chemical and physical properties of synthetic materials for regeneration of osteochondral tissues.
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Affiliation(s)
- Michael T Frassica
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-2120, United States
| | - Melissa A Grunlan
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-2120, United States.,Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843-3003, United States.,Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
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100
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Vyas C, Mishbak H, Cooper G, Peach C, Pereira RF, Bartolo P. Biological perspectives and current biofabrication strategies in osteochondral tissue engineering. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s40898-020-00008-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
AbstractArticular cartilage and the underlying subchondral bone are crucial in human movement and when damaged through disease or trauma impacts severely on quality of life. Cartilage has a limited regenerative capacity due to its avascular composition and current therapeutic interventions have limited efficacy. With a rapidly ageing population globally, the numbers of patients requiring therapy for osteochondral disorders is rising, leading to increasing pressures on healthcare systems. Research into novel therapies using tissue engineering has become a priority. However, rational design of biomimetic and clinically effective tissue constructs requires basic understanding of osteochondral biological composition, structure, and mechanical properties. Furthermore, consideration of material design, scaffold architecture, and biofabrication strategies, is needed to assist in the development of tissue engineering therapies enabling successful translation into the clinical arena. This review provides a starting point for any researcher investigating tissue engineering for osteochondral applications. An overview of biological properties of osteochondral tissue, current clinical practices, the role of tissue engineering and biofabrication, and key challenges associated with new treatments is provided. Developing precisely engineered tissue constructs with mechanical and phenotypic stability is the goal. Future work should focus on multi-stimulatory environments, long-term studies to determine phenotypic alterations and tissue formation, and the development of novel bioreactor systems that can more accurately resemble the in vivo environment.
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