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Wu Z, Yao H, Sun H, Gu Z, Hu X, Yang J, Shi J, Yang H, Dai J, Chong H, Wang DA, Lin L, Zhang W. Enhanced hyaline cartilage formation and continuous osteochondral regeneration via 3D-Printed heterogeneous hydrogel with multi-crosslinking inks. Mater Today Bio 2024; 26:101080. [PMID: 38757056 PMCID: PMC11097081 DOI: 10.1016/j.mtbio.2024.101080] [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: 01/17/2024] [Revised: 04/16/2024] [Accepted: 05/01/2024] [Indexed: 05/18/2024] Open
Abstract
The unique gradient structure and complex composition of osteochondral tissue pose significant challenges in defect regeneration. Restoration of tissue heterogeneity while maintaining hyaline cartilage components has been a difficulty of an osteochondral tissue graft. A novel class of multi-crosslinked polysaccharide-based three-dimensional (3D) printing inks, including decellularized natural cartilage (dNC) and nano-hydroxyapatite, was designed to create a gradient scaffold with a robust interface-binding force. Herein, we report combining a dual-nozzle cross-printing technology and a gradient crosslinking method to create the scaffolds, demonstrating stable mechanical properties and heterogeneous bilayer structures. Biofunctional assessments revealed the remarkable regenerative effects of the scaffold, manifesting three orders of magnitude of mRNA upregulation during chondrogenesis and the formation of pure hyaline cartilage. Transcriptomics of the regeneration site in vivo and scaffold cell interaction tests in vitro showed that printed porous multilayer scaffolds could form the correct tissue structure for cell migration. More importantly, polysaccharides with dNC provided a hydrophilic microenvironment. The microenvironment is crucial in osteochondral regeneration because it could guide the regenerated cartilage to ensure the hyaline phenotype.
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Affiliation(s)
- Zhonglian Wu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China
| | - Hang Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China
| | - Haidi Sun
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China
| | - Zehao Gu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China
| | - Xu Hu
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, 999077, PR China
| | - Jian Yang
- Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, 225001, PR China
| | - Junli Shi
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China
| | - Haojun Yang
- The Affiliated Changzhou, No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu, 213004, PR China
| | - Jihang Dai
- Department of Orthopedics and Sports Medicine, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, 225001, PR China
| | - Hui Chong
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China
| | - Dong-An Wang
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, 999077, PR China
| | - Liwei Lin
- School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, PR China
- Department of Applied Bioengineering, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Wang Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China
- Department of Applied Bioengineering, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
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2
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Omidian H, Chowdhury SD, Wilson RL. Advancements and Challenges in Hydrogel Engineering for Regenerative Medicine. Gels 2024; 10:238. [PMID: 38667657 PMCID: PMC11049258 DOI: 10.3390/gels10040238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 03/21/2024] [Accepted: 03/28/2024] [Indexed: 04/28/2024] Open
Abstract
This manuscript covers the latest advancements and persisting challenges in the domain of tissue engineering, with a focus on the development and engineering of hydrogel scaffolds. It highlights the critical role of these scaffolds in emulating the native tissue environment, thereby providing a supportive matrix for cell growth, tissue integration, and reducing adverse reactions. Despite significant progress, this manuscript emphasizes the ongoing struggle to achieve an optimal balance between biocompatibility, biodegradability, and mechanical stability, crucial for clinical success. It also explores the integration of cutting-edge technologies like 3D bioprinting and biofabrication in constructing complex tissue structures, alongside innovative materials and techniques aimed at enhancing tissue growth and functionality. Through a detailed examination of these efforts, the manuscript sheds light on the potential of hydrogels in advancing regenerative medicine and the necessity for multidisciplinary collaboration to navigate the challenges ahead.
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Affiliation(s)
- Hossein Omidian
- Barry and Judy Silverman College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA; (S.D.C.); (R.L.W.)
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3
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Shi J, Yao H, Wang B, Yang J, Liu D, Shang X, Chong H, Fei W, Wang DA. Construction of a Decellularized Multicomponent Extracellular Matrix Interpenetrating Network Scaffold by Gelatin Microporous Hydrogel 3D Cell Culture System. Macromol Rapid Commun 2024; 45:e2300508. [PMID: 38049086 DOI: 10.1002/marc.202300508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/25/2023] [Indexed: 12/06/2023]
Abstract
Interface tissue repair requires the construction of biomaterials with integrated structures of multiple protein types. Hydrogels that modulate internal porous structures provide a 3D microenvironment for encapsulated cells, making them promise for interface tissue repair. Currently, reduction of intrinsic immunogenicity and increase of bioactive extracellular matrix (ECM) secretion are issues to be considered in these materials. In this study, gelatin methacrylate (GelMA) hydrogel is used to encapsulate chondrocytes and construct a phase transition 3D cell culture system (PTCC) by utilizing the thermosensitivity of gelatin microspheres to create micropores within the hydrogel. The types of bioactive extracellular matrix protein formation by chondrocytes encapsulated in hydrogels are investigated in vitro. After 28 days of culture, GelMA PTCC forms an extracellular matrix predominantly composed of collagen type II, collagen type I, and fibronectin. After decellularization, the protein types and mechanical properties are well preserved, fabricating a decellularized tissue-engineered extracellular matrix and GelMA hydrogel interpenetrating network hydrogel (dECM-GelMA IPN) consisting of GelMA hydrogel as the first-level network and the ECM secreted by chondrocytes as the second-level network. This material has the potential to mediate the repair and regeneration of tendon-bone interface tissues with multiple protein types.
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Affiliation(s)
- Junli Shi
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, P. R. China
| | - Hang Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, P. R. China
| | - Bowen Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, P. R. China
| | - Jian Yang
- Department of Orthopedics and Sports Medicine, Northern Jiangsu People's Hospital, Yangzhou, 225001, P. R. China
- Clinical Medical College, Yangzhou University, Yangzhou, 225001, P. R. China
| | - Dianwei Liu
- Department of Orthopedics and Sports Medicine, Northern Jiangsu People's Hospital, Yangzhou, 225001, P. R. China
| | - Xianfeng Shang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, P. R. China
| | - Hui Chong
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, P. R. China
| | - Wenyong Fei
- Department of Orthopedics and Sports Medicine, Northern Jiangsu People's Hospital, Yangzhou, 225001, P. R. China
- Clinical Medical College, Yangzhou University, Yangzhou, 225001, P. R. China
| | - Dong-An Wang
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, 518057, P. R. China
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4
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Zavala G, Viafara-García SM, Novoa J, Hidalgo C, Contardo I, Díaz-Calderón P, Alejandro González-Arriagada W, Khoury M, Acevedo JP. An advanced biphasic porous and injectable scaffold displays a fine balance between mechanical strength and remodeling capabilities essential for cartilage regeneration. Biomater Sci 2023; 11:6801-6822. [PMID: 37622217 DOI: 10.1039/d3bm00703k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
An important challenge in tissue engineering is the regeneration of functional articular cartilage (AC). In the field, biomimetic hydrogels are being extensively studied as scaffolds that recapitulate microenvironmental features or as mechanical supports for transplanted cells. New advanced hydrogel formulations based on salmon methacrylate gelatin (sGelMA), a cold-adapted biomaterial, are presented in this work. The psychrophilic nature of this biomaterial provides rheological advantages allowing the fabrication of scaffolds with high concentrations of the biopolymer and high mechanical strength, suitable for formulating injectable hydrogels with high mechanical strength for cartilage regeneration. However, highly intricate cell-laden scaffolds derived from highly concentrated sGelMA solutions could be deleterious for cells and scaffold remodeling. On this account, the current study proposes the use of sGelMA supplemented with a mesophilic sacrificial porogenic component. The cytocompatibility of different sGelMA-based formulations is tested through the encapsulation of osteoarthritic chondrocytes (OACs) and stimulated to synthesize extracellular matrix (ECM) components in vitro and in vivo. The sGelMA-derived scaffolds reach high levels of stiffness, and the inclusion of porogens impacts positively the scaffold degradability and molecular diffusion, improved fitness of OACs, increased the expression of cartilage-related genes, increased glycosaminoglycan (GAG) synthesis, and improved remodeling toward cartilage-like tissues. Altogether, these data support the use of sGelMA solutions in combination with mammalian solid gelatin beads for highly injectable formulations for cartilage regeneration, strengthening the importance of the balance between mechanical properties and remodeling capabilities.
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Affiliation(s)
- Gabriela Zavala
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Cells for Cells and REGENERO, The Chilean Consortium for Regenerative Medicine, Santiago, Chile
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
| | - Sergio M Viafara-García
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Cells for Cells and REGENERO, The Chilean Consortium for Regenerative Medicine, Santiago, Chile
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
| | - Javier Novoa
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Cells for Cells and REGENERO, The Chilean Consortium for Regenerative Medicine, Santiago, Chile
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
| | - Carmen Hidalgo
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Cells for Cells and REGENERO, The Chilean Consortium for Regenerative Medicine, Santiago, Chile
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
| | - Ingrid Contardo
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Facultad de Medicina, Escuela de Nutrición y Dietética, Biopolymer Research & Engineering Laboratory (BiopREL), Universidad de los Andes, Chile
| | - Paulo Díaz-Calderón
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Facultad de Medicina, Escuela de Nutrición y Dietética, Biopolymer Research & Engineering Laboratory (BiopREL), Universidad de los Andes, Chile
| | | | - Maroun Khoury
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Cells for Cells and REGENERO, The Chilean Consortium for Regenerative Medicine, Santiago, Chile
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
| | - Juan Pablo Acevedo
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Cells for Cells and REGENERO, The Chilean Consortium for Regenerative Medicine, Santiago, Chile
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
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5
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Pan Q, Su W, Yao Y. Progress in microsphere-based scaffolds in bone/cartilage tissue engineering. Biomed Mater 2023; 18:062004. [PMID: 37751762 DOI: 10.1088/1748-605x/acfd78] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 09/26/2023] [Indexed: 09/28/2023]
Abstract
Bone/cartilage repair and regeneration have been popular and difficult issues in medical research. Tissue engineering is rapidly evolving to provide new solutions to this problem, and the key point is to design the appropriate scaffold biomaterial. In recent years, microsphere-based scaffolds have been considered suitable scaffold materials for bone/cartilage injury repair because microporous structures can form more internal space for better cell proliferation and other cellular activities, and these composite scaffolds can provide physical/chemical signals for neotissue formation with higher efficiency. This paper reviews the research progress of microsphere-based scaffolds in bone/chondral tissue engineering, briefly introduces types of microspheres made from polymer, inorganic and composite materials, discusses the preparation methods of microspheres and the exploration of suitable microsphere pore size in bone and cartilage tissue engineering, and finally details the application of microsphere-based scaffolds in biomimetic scaffolds, cell proliferation and drug delivery systems.
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Affiliation(s)
- Qian Pan
- Department of Joint Surgery, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510120, People's Republic of China
- Guangdong Key Laboratory of Orthopaedic Technology and Implant Materials, Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510120, People's Republic of China
| | - Weixian Su
- Department of Joint Surgery, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510120, People's Republic of China
- Guangdong Key Laboratory of Orthopaedic Technology and Implant Materials, Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510120, People's Republic of China
| | - Yongchang Yao
- Department of Joint Surgery, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510120, People's Republic of China
- Guangdong Key Laboratory of Orthopaedic Technology and Implant Materials, Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510120, People's Republic of China
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6
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Zhang Z, Mu Y, Zhou H, Yao H, Wang DA. Cartilage Tissue Engineering in Practice: Preclinical Trials, Clinical Applications, and Prospects. TISSUE ENGINEERING. PART B, REVIEWS 2023; 29:473-490. [PMID: 36964757 DOI: 10.1089/ten.teb.2022.0190] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/26/2023]
Abstract
Articular cartilage defects significantly compromise the quality of life in the global population. Although many strategies are needed to repair articular cartilage, including microfracture, autologous osteochondral transplantation, and osteochondral allograft, the therapeutic effects remain suboptimal. In recent years, with the development of cartilage tissue engineering, scientists have continuously improved the formulations of therapeutic cells, biomaterial-based scaffolds, and biological factors, which have opened new avenues for better therapeutics of cartilage lesions. This review focuses on advances in cartilage tissue engineering, particularly in preclinical trials and clinical applications, prospects, and challenges.
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Affiliation(s)
- Zhen Zhang
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR
| | - Yulei Mu
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR
| | - Huiqun Zhou
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR
| | - Hang Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, P.R. China
| | - Dong-An Wang
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR
- Karolinska Institutet Ming Wai Lau Centre for Reparative Medicine, HKSTP, Sha Tin, Hong Kong SAR
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, P.R. China
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7
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Shi T, Niu D, You J, Li S, Li G, Ren K, Yan S, Xu G, Yin J. Injectable macro-porous chitosan/polyethylene glycol-silicotungstic acid double-network hydrogels based on "smashed gels recombination" strategy for cartilage tissue engineering. Int J Biol Macromol 2023; 233:123541. [PMID: 36740115 DOI: 10.1016/j.ijbiomac.2023.123541] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 01/10/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
The lack of interconnected macro-porous structure of most injectable hydrogels lead to poor cell and tissue infiltration. Herein, we present the fabrication of injectable macro-porous hydrogels based on "smashed gels recombination" strategy. Chitosan/polyethylene glycol-silicotungstic acid (CS/PEG-SiW) double-network hydrogels were prepared via dual dynamic interactions. The bulk CS/PEG-SiW hydrogels were then smashed into micro-hydrogels with average sizes ranging from 47.6 to 63.8 μm by mechanical fragmentation. The CS/PEG-SiW micro-hydrogels could be continuously injected and rapidly recombined into a stable porous hydrogel based on the dual dynamic interactions between micro-hydrogels. The average pore size of the recombined porous CS/PEG-SiW hydrogels ranged from 52 to 184 μm. The storage modulus, compress modulus and maximum compressive strain of the recombined porous CS/PEG-SiW1.0 hydrogels reached about 47.2 %, 28.2 % and 127.6 % of the values for their corresponding bulk hydrogels, respectively. The recombined porous hydrogels were cytocompatible and could effectively support proliferation and chondrogenic differentiation of bone marrow mesenchymal stem cells (BMSCs). In a rat cartilage defect model, recombined porous CS/PEG-SiW hydrogels could promote cartilage regeneration. Hematoxylin and eosin (H&E), Safranin-O/Fast green and immunohistochemical staining confirmed the accumulation of glycosaminoglycans (GAG) and type II collagen (Col II) in regenerated cartilage.
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Affiliation(s)
- Tuhe Shi
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China
| | - Dongyang Niu
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Second Military Medical University, Shanghai 200003, PR China
| | - Jiahui You
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China
| | - Shuang Li
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China
| | - Guifei Li
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China
| | - Kaixuan Ren
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China
| | - Shifeng Yan
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China.
| | - Guohua Xu
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Second Military Medical University, Shanghai 200003, PR China.
| | - Jingbo Yin
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China.
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8
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Xu X, Feng Q, Ma X, Deng Y, Zhang K, Ooi HS, Yang B, Zhang ZY, Feng B, Bian L. Dynamic gelatin-based hydrogels promote the proliferation and self-renewal of embryonic stem cells in long-term 3D culture. Biomaterials 2022; 289:121802. [PMID: 36152514 DOI: 10.1016/j.biomaterials.2022.121802] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/12/2022] [Accepted: 09/09/2022] [Indexed: 11/02/2022]
Abstract
Long-term maintenance of embryonic stem cells (ESCs) in the undifferentiated state is still challenging. Compared with traditional 2D culture methods, 3D culture in biomaterials such as hydrogels is expected to better support the long-term self-renewal of ESCs by emulating the biophysical and biochemical properties of the extracellular matrix (ECM). Although prior studies showed that soft and degradable hydrogels favor the 3D growth of ESCs, few studies have examined the impact of the structural dynamics of the hydrogel matrix on ESC behaviors. Herein, we report a gelatin-based structurally dynamic hydrogel (GelCD hydrogel) that emulates the intrinsic structural dynamics of the ECM. Compared with covalently crosslinked gelatin hydrogels (GelMA hydrogels) with similar stiffness and biodegradability, GelCD hydrogels significantly promote the clonal expansion and viability of encapsulated mouse ESCs (mESCs) independent of MMP-mediated hydrogel degradation. Furthermore, GelCD hydrogels better maintain the pluripotency of encapsulated mESCs than do traditional 2D culture methods that use MEF feeder cells or medium supplementation with GSK3β and MEK 1/2 inhibitors (2i). When cultured in GelCD hydrogels for an extended period (over 2 months) with cell passaging every 7 days, mESCs preserve their normal morphology and maintain their pluripotency and full differentiation capability. Our findings highlight the critical role of the structural dynamics of the hydrogel matrix in accommodating the volume expansion that occurs during clonal ESC growth, and we believe that our dynamic hydrogels represent a valuable tool to support the long-term 3D culture of ESCs.
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Affiliation(s)
- Xiayi Xu
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China.
| | - Qian Feng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China; Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Chongqing, 400044, China
| | - Xun Ma
- Center for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences Limited, Hong Kong SAR, 999077, China; School of Biomedical Sciences, Faculty of Medicine, Institute for Tissue Engineering and Regenerative Medicine (iTERM), CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China
| | - Yingrui Deng
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China
| | - Kunyu Zhang
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China; School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, 511442, China
| | - Hon Son Ooi
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China
| | - Boguang Yang
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China
| | - Zhi-Yong Zhang
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou City, Guangdong Province, 510150, China.
| | - Bo Feng
- Center for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences Limited, Hong Kong SAR, 999077, China; School of Biomedical Sciences, Faculty of Medicine, Institute for Tissue Engineering and Regenerative Medicine (iTERM), CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China; Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China.
| | - Liming Bian
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, 511442, China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China; Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, China; Guangdong Provincial Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou, 510006, China.
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9
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Yao H, Li T, Wu Z, Tao Q, Shi J, Liu L, Zhao Y. Superlarge living hyaline cartilage graft contributed by the scale-changed porous 3D culture system for joint defect repair. Biomed Mater 2022; 17. [PMID: 35973419 DOI: 10.1088/1748-605x/ac8a31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 08/16/2022] [Indexed: 11/12/2022]
Abstract
It is known that an excellent hyaline cartilage phenotype, an internal microstructure with safe crosslinking and available size flexibility are the key factors of cartilage grafts that allow for clinical application. Living hyaline cartilage grafts (LhCGs) constructed by phase-transfer hydrogel (PTCC) systems were reported to have a hyaline phenotype and bionic microstructure. By employing chondrocytes to secrete matrix in the hydrogel and then removing the material to obtain material-free tissue in vitro, LhCG technology exhibited superior performance in cartilage repair. However, PTCC systems could only produce small-sized LhCGs because of medium delivery limitations, which hinders the clinical application of LhCGs. In this study, we prepared three different noncrosslinked gelatin microspheres with diameters from 200 μm to 500 μm, which replaced the original pore-forming agent. The new PTCC system with the mixed and gradient porous structure was used for the preparation of superlarge LhCGs with a continuous structure and hyaline phenotype. Compared to the original technique, the porous gradient structure promoted nutrient delivery and cartilage matrix secretion. The small size of the microporous structure promoted the rapid formation of matrix junctions. The experimental group with a mixed gradient increased cartilage matrix secretion significantly by more than 50% compared to the that of the control. The LhCG final area reached 7 cm2without obvious matrix stratification in the mixed gradient group. The design of the scale-changed porous PTCC system will make LhCGs more promising for clinical application.
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Affiliation(s)
- Hang Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, 7#-S106, Yangzhou, Jiangsu, China, P.R. China 225009, Yangzhou, 225009, CHINA
| | - Tianliang Li
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, 7#-S106, Yangzhou, Jiangsu, China, P.R. China 225009, Yangzhou, Jiangsu, 225009, CHINA
| | - Zhonglian Wu
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, 7#-S106, Yangzhou, Jiangsu, China, P.R. China 225009, Yangzhou, Jiangsu, 225009, CHINA
| | - Qi Tao
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, 7#-S106, Yangzhou, Jiangsu, China, P.R. China 225009, Yangzhou, Jiangsu, 225009, CHINA
| | - Junli Shi
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, 7#-S106, Yangzhou, Jiangsu, China, P.R. China 225009, Yangzhou, Jiangsu, 225009, CHINA
| | - Lihua Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, 7#-S106, Yangzhou, Jiangsu, China, P.R. China 225009, Yangzhou, Jiangsu, 225009, CHINA
| | - Yuchi Zhao
- Department of Osteoarthropathy, Yantaishan Hospital, No.91, Jiefang Road, Zhifu District, Yantai 264001, Shangdong, P.R.China, Yantai, Shandong, 264001, CHINA
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10
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Xue J, Yang W, Wang X, Wang P, Meng X, Yu T, Fan C. A transcriptome sequencing study on the effect of macro-pores in hydrogel scaffolds on global gene expression of laden human cartilage chondrocytes. Biomed Mater 2022; 17. [PMID: 35609582 DOI: 10.1088/1748-605x/ac7304] [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: 10/26/2021] [Accepted: 05/24/2022] [Indexed: 11/12/2022]
Abstract
The macro-porous hydrogel scaffolds can not only enhance the proliferation of laden chondrocytes but also favor the deposition of hyaline cartilaginous extracellular matrix, however, the underlying molecular mechanism is still unclear. Herein, the global gene expression of human cartilage chondrocytes (HCCs) encapsulated in traditional hydrogel (Gel) constructs and micro-cavitary gel (MCG) constructs are investigated by using high-throughput RNA sequencing (RNA-seq). The differentially expressed genes (DEGs) between the HCCs cultured in Gel and MCG constructs have been identified via bioinformatics analysis. Significantly, the DEGs that promote cell proliferation (e.g. POSTN, MKI67, KIF20A) or neo-cartilage formation (e.g. COL2, ASPN, COMP, FMOD, FN1), are more highly expressed in MCG constructs than in Gel constructs, while the expressions of the DEGs associated with chondrocyte hypertrophy (e.g. EGR1, IBSP) are upregulated in Gel constructs. The expression of representative DEGs is verified at both mRNA and protein levels. Besides, cellular viability and morphology as well as the enriched signaling pathway of DEGs are studied in detail. These results of this work may provide data for functional tissue engineering of cartilage.
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Affiliation(s)
- Junqiang Xue
- Department of Sports Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266000, Shandong, People's Republic of China.,Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266000, Shandong, People's Republic of China
| | - Wei Yang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266021, Shandong, People's Republic of China.,School of Basic Medicine, College of Medicine, Qingdao University, Qingdao 266071, Shandong, People's Republic of China
| | - Xinping Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266021, Shandong, People's Republic of China.,School of Basic Medicine, College of Medicine, Qingdao University, Qingdao 266071, Shandong, People's Republic of China
| | - Peiyan Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266021, Shandong, People's Republic of China.,School of Basic Medicine, College of Medicine, Qingdao University, Qingdao 266071, Shandong, People's Republic of China
| | - Xinyue Meng
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266021, Shandong, People's Republic of China.,School of Basic Medicine, College of Medicine, Qingdao University, Qingdao 266071, Shandong, People's Republic of China
| | - Tengbo Yu
- Department of Sports Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266000, Shandong, People's Republic of China
| | - Changjiang Fan
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266021, Shandong, People's Republic of China.,School of Basic Medicine, College of Medicine, Qingdao University, Qingdao 266071, Shandong, People's Republic of China
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11
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Yuan Z, Liu S, Song W, Liu Y, Bi G, Xie R, Ren L. Galactose Enhances Chondrogenic Differentiation of ATDC5 and Cartilage Matrix Formation by Chondrocytes. Front Mol Biosci 2022; 9:850778. [PMID: 35615738 PMCID: PMC9124793 DOI: 10.3389/fmolb.2022.850778] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 04/07/2022] [Indexed: 12/01/2022] Open
Abstract
Galactose, an important carbohydrate nutrient, is involved in several types of cellular metabolism, participating in physiological activities such as glycosaminoglycan (GAG) synthesis, glycosylation, and intercellular recognition. The regulatory effects of galactose on osteoarthritis have attracted increased attention. In this study, in vitro cell models of ATDC5 and chondrocytes were prepared and cultured with different concentrations of galactose to evaluate its capacity on chondrogenesis and cartilage matrix formation. The cell proliferation assay demonstrated that galactose was nontoxic to both ATDC5 cells and chondrocytes. RT-PCR and immunofluorescence staining indicated that the gene expressions of cartilage matrix type II collagen and aggrecan were significantly upregulated with increasing galactose concentration and the expression and accumulation of the extracellular matrix (ECM) protein. Overall, these results indicated that a galactose concentration below 8 mM exhibited the best effect on promoting chondrogenesis, which entitles galactose as having considerable potential for cartilage repair and regeneration.
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Affiliation(s)
- Zhongrun Yuan
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, China
- Guangdong Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou, China
| | - Sa Liu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, China
- Guangdong Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou, China
- *Correspondence: Sa Liu, ; Renjian Xie, ; Li Ren,
| | - Wenjing Song
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, China
- Guangdong Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou, China
| | - Ying Liu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, China
- Guangdong Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou, China
| | - Gangyuan Bi
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, China
- Guangdong Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou, China
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, China
| | - Renjian Xie
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, China
- School of Medical Information Engineering, Gannan Medical University, Ganzhou, China
- Jiangxi Key Laboratory of Medical Tissue Engineering Materials and Biofabrication, Gannan Medical University, Ganzhou, China
- *Correspondence: Sa Liu, ; Renjian Xie, ; Li Ren,
| | - Li Ren
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, China
- Guangdong Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou, China
- *Correspondence: Sa Liu, ; Renjian Xie, ; Li Ren,
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12
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Sun K, Tao C, Wang DA. Scaffold-free approaches for the fabrication of engineered articular cartilage tissue. Biomed Mater 2022; 17. [PMID: 35114657 DOI: 10.1088/1748-605x/ac51b9] [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: 09/30/2021] [Accepted: 02/03/2022] [Indexed: 11/12/2022]
Abstract
Tissue engineered cartilaginous constructs have meet great advances in the past decades as a treatment for osteoarthritis, a degenerative disease affecting people all over the world as the population ages. Scaffold-free tissue engineered constructs are designed and developed in recent years with only cells and cell-derived matrix involved. Scaffold-free tissue constructs do not require cell adherence on exogenous materials and are superior to scaffold-based constructs in (1) relying on only cells to produce matrix, (2) not interfering cell-cell signaling, cell migration or small molecules diffusion after implantation and (3) introducing no exogenous impurities. In this review, three main scaffold-free methodologies for cartilage tissue engineering, the cell sheet technology, the phase transfer cell culture-living hyaline cartilage graft (PTCC-LhCG) system and the cell aggregate-based (bottom-up) methods, were reviewed, covering mold fabrication, decellularization and 3D bioprinting. The recent advances, medical applications, superiority and drawbacks were elaborated in detail.
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Affiliation(s)
- Kang Sun
- City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Kowloon, 000000, HONG KONG
| | - Chao Tao
- City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Kowloon, 000000, HONG KONG
| | - Dong-An Wang
- City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Kowloon, 000000, HONG KONG
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13
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Lu D, Zeng Z, Geng Z, Guo C, Pei D, Zhang J, Yu S. Macroporous methacrylated hyaluronic acid hydrogel with different pore sizes for in vitro and in vivo evaluation of vascularization. Biomed Mater 2022; 17. [PMID: 34996058 DOI: 10.1088/1748-605x/ac494b] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 01/07/2022] [Indexed: 11/11/2022]
Abstract
Vascularization of thick hydrogel scaffolds is still a big challenge, because the submicron- or nano-sized pores seriously restrict endothelial cells adhesion, proliferation and migration. Therefore, porous hydrogels have been fabricated as a kind of promising hydrous scaffolds for enhancing vascularization during tissue repairing. In order to investigate the effects of pore size on vascularization, macroporous methacrylated hyaluronic acid (HAMA) hydrogels with different pore sizes were fabricated by a gelatin microspheres (GMS) template method. After leaching out GMS templates, uniform and highly interconnected macropores were formed in hydrogels, which provided an ideal physical microenvironment to induce human umbilical vein endothelial cells (HUVECs) migration and tissue vascularization. In vitro results revealed that macroporous hydrogels facilitated cells proliferation and migration compared with non-macroporous hydrogels. Hydrogels with middle pore size of 200-250 μm (HAMA250 hydrogels) supported the best cell proliferation and furthest 3D migration of HUVECs. The influences of pore sizes on vascularization were then evaluated with subcutaneous embedding. In vivo results illustrated that HAMA250 hydrogels exhibited optimum vascularization behavior. Highest number of newly formed blood vessels and expression of CD31 could be found in HAMA250 hydrogels rather than in other hydrogels. In summary, our results concluded that the best pore size for endothelial cells migration and tissue vascularization was 200-250 μm. This research provides a new insight into the engineering vascularized tissues and may find utility in designing regenerative biomaterial scaffolds.
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Affiliation(s)
- Daohuan Lu
- Institute of Medicine and Health, Guangdong Academy of Sciences, No. 1307, Guangzhou Avenue, Tianhe District, guangzhou, 51000, CHINA
| | - Zhiwen Zeng
- Institute of Medicine and Health, Guangdong Academy of Sciences, No. 1307, Guangzhou Avenue, Tianhe District, Guangzhou, guangzhou, 51000, CHINA
| | - Zhijie Geng
- Institute of Medicine and Health, Guangdong Academy of Sciences, No. 1307, Guangzhou Avenue, Tianhe District, guangzhou, 51000, CHINA
| | - Cuiping Guo
- Institute of Medicine and Health, Guangdong Academy of Sciences, , guangzhou, 51000, CHINA
| | - Dating Pei
- Institute of Medicine and Health, Guangdong Academy of Sciences, No. 1307, Guangzhou Avenue, Tianhe District, guangzhou, 51000, CHINA
| | - Jin Zhang
- Institute of Medicine and Health, Guangdong Academy of Sciences, No. 1307, Guangzhou Avenue, Tianhe District, guangzhou, 51000, CHINA
| | - Shan Yu
- Institute of Medicine and Health, Guangdong Academy of Sciences, No. 1307, Guangzhou Avenue, Tianhe District, guangzhou, 51000, CHINA
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14
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Liu B, Tao C, Wu Z, Yao H, Wang DA. Engineering strategies to achieve efficient in vitro expansion of haematopoietic stem cells: development and improvement. J Mater Chem B 2022; 10:1734-1753. [DOI: 10.1039/d1tb02706a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Haematopoietic stem cells are the basis for building and maintaining lifelong haematopoietic mechanisms and important resources for the treatment of blood disorders. Haematopoietic niches are microenvironment in the body where...
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15
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Tao C, Jin M, Yao H, Wang DA. Dopamine based adhesive nano-coatings on extracellular matrix (ECM) based grafts for enhanced host-graft interfacing affinity. NANOSCALE 2021; 13:18148-18159. [PMID: 34709280 DOI: 10.1039/d1nr06284k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Interfacing affinity between grafts and host tissues is an urgent issue that needs to be addressed for the clinical translation of tissue engineered extracellular matrix (ECM) based grafts. Dopamine is known as a universal adhesive, the catechol groups on which could form chelating bonds with metal ions. Herein we developed an adhesive nano-coating on ECM based grafts which could crosslink in situ with ferric ions for fixation with surrounding tissues after implantation without affecting the porous structures of the grafts. Therefore, decellularized living hyaline cartilage graft (dLhCG), a model ECM-based graft, with dopamine based natural biological material adhesive coatings was manufactured to address the interfacing affinity issue between ECM-based grafts and cartilage. A macromolecule backbone was needed for the coating material to avoid the formation of a rigid crosslinking system and adverse effects caused by small molecules of dopamine. Chondroitin sulfate (CS), a cartilage derived sulfated GAG, was chosen as the backbone to fabricate dopamine modified CS (CSD) with no impurities introduced to the joint. Dopamine modified serum albumin (BCD) was also chosen for the favorable biocompatibility of albumin. Both dLhCG coated with CSD and dLhCG coated with BCD showed enhanced adhesive strength with cartilage after chelating with ferric ions in situ compared to dLhCG and further potential in improving the interfacing affinity of dLhCG with cartilage.
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Affiliation(s)
- Chao Tao
- Karolinska Institutet Ming Wai Lau Centre for Reparative Medicine, HKSTP, Sha Tin, Hong Kong SAR.
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR
| | - Min Jin
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR
| | - Hang Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, Jiangsu, P. R. China.
| | - Dong-An Wang
- Karolinska Institutet Ming Wai Lau Centre for Reparative Medicine, HKSTP, Sha Tin, Hong Kong SAR.
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, P. R. China
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16
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Tao C, Wang D. Tissue Engineering for Mimics and Modulations of Immune Functions. Adv Healthc Mater 2021; 10:e2100146. [PMID: 33871178 DOI: 10.1002/adhm.202100146] [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: 01/24/2021] [Revised: 03/21/2021] [Indexed: 11/12/2022]
Abstract
In the field of regenerative medicine, advances in tissue engineering have surpassed the reconstruction of individual tissues or organs and begun to work towards engineering systemic factors such as immune objects and functions. The immune system plays a crucial role in protecting and regulating systemic functions in the human body. Engineered immune tissues and organs have shown potential in recovering dysfunctions and aplasia of the immune system and the evasion from immune-mediated inflammatory responses and rejection elicited by engineered implants from allogeneic or xenogeneic sources are also being pursued to facilitate clinical transplantation of tissue engineered grafts. Here, current progress in tissue engineering to mimic or modulate immune functions is reviewed and elaborated from two perspectives: 1) engineering of immune tissues and organs per se and 2) immune evasion of host immunoinflammatory rejection by tissue-engineered implants.
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Affiliation(s)
- Chao Tao
- Department of Biomedical Engineering City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong SAR China
| | - Dong‐An Wang
- Department of Biomedical Engineering City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong SAR China
- Karolinska Institute Ming Wai Lau Centre for Reparative Medicine HKSTP Sha Tin Hong Kong SAR China
- Shenzhen Research Institute City University of Hong Kong Shenzhen 518057 P. R. China
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17
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Tao C, Zhu W, Iqbal J, Xu C, Wang DA. Stabilized albumin coatings on engineered xenografts for attenuation of acute immune and inflammatory responses. J Mater Chem B 2021; 8:6080-6091. [PMID: 32555888 DOI: 10.1039/d0tb01111h] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Xenogeneic grafts are promising candidates for transplantation therapy due to their easily accessible sources. Nevertheless, the immune and inflammatory responses induced by xenografts need to be addressed for clinical use. A novel and facile method was introduced for the attenuation of immune and inflammatory responses by extending the immune evasion potential of albumin to the tissue engineering field and coating albumin, which could passivate biomaterial surfaces, onto xenografts. Albumin was first modified by dopamine to enhance its adhesion on graft surfaces. Porcine chondrocytes derived living hyaline cartilage graft (LhCG) and decellularized LhCG (dLhCG) were applied as xenograft models implanted in the omentum of rats. Both LhCG which contained porcine chondrocytes as well as secreted ECM and dLhCG which was mainly composed of the porcine source ECM showed alleviated immune and inflammatory responses after being coated with albumin at cell, protein and gene levels, respectively. Significantly less inflammatory cells including neutrophils, macrophages and lymphocytes were recruited according to pathological analysis and immunohistochemistry staining with lower gene expression encoding inflammation-related cytokines including MCP-1, IL-6 and IL-1β after employing LhCG and dLhCG with albumin passivation coating.
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Affiliation(s)
- Chao Tao
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 50 Nanyang Ave, 639798, Singapore
| | - Wenzhen Zhu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 50 Nanyang Ave, 639798, Singapore
| | - Jabed Iqbal
- Department of Pathology, Singapore General Hospital, 20 College Road, Academia, Diagnostics Tower, Level 10, Singapore 169856, Singapore
| | - Chenjie Xu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 50 Nanyang Ave, 639798, Singapore and City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
| | - Dong-An Wang
- City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
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18
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Dong Z, Meng X, Yang W, Zhang J, Sun P, Zhang H, Fang X, Wang DA, Fan C. Progress of gelatin-based microspheres (GMSs) as delivery vehicles of drug and cell. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 122:111949. [PMID: 33641932 DOI: 10.1016/j.msec.2021.111949] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/30/2021] [Accepted: 02/02/2021] [Indexed: 12/13/2022]
Abstract
Gelatin has various attractive features as biomedical materials, for instance, biocompatibility, low immunogenicity, biodegradability, and ease of manipulation. In recent years, various gelatin-based microspheres (GMSs) have been fabricated with innovative technologies to serve as sustained delivery vehicles of drugs and genetic materials as well as beneficial bacteria. Moreover, GMSs have exhibited promising potentials to act as both cell carriers and 3D scaffold components in tissue engineering and regenerative medicine, which not only exhibit excellent injectability but also could be integrated into a macroscale construct with the laden cells. Herein, we aim to thoroughly summarize the recent progress in the preparations and biomedical applications of GMSs and then to point out the research direction in future. First, various methods for the fabrication of GMSs will be described. Second, the recent use of GMSs in tumor embolization and in the delivery of cells, drugs, and genetic material as well as bacteria will be presented. Finally, several key factors that may enhance the improvement of GMSs were suggested as delivery vehicles.
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Affiliation(s)
- Zuoxiang Dong
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266000, Shandong, China; Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Xinyue Meng
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266000, Shandong, China
| | - Wei Yang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266000, Shandong, China
| | - Jinfeng Zhang
- Department of Surgery, Songshan Hospital of Qingdao University, Qingdao 266021, Shandong, China
| | - Peng Sun
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Huawei Zhang
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Xing Fang
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Dong-An Wang
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region; Shenzhen Research Institute, City University of Hong Kong, Shenzhen Hi-tech Industrial Park, Shenzhen, Guangdong 518057, China; Karolinska Institute Ming Wai Lau Centre for Reparative Medicine, HKSTP, Sha Tin, Hong Kong Special Administrative Region.
| | - Changjiang Fan
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266000, Shandong, China.
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19
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Tao C, Nie X, Zhu W, Iqbal J, Xu C, Wang DA. Autologous cell membrane coatings on tissue engineering xenografts for suppression and alleviation of acute host immune responses. Biomaterials 2020; 258:120310. [PMID: 32823019 DOI: 10.1016/j.biomaterials.2020.120310] [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] [Received: 03/06/2020] [Revised: 07/13/2020] [Accepted: 08/07/2020] [Indexed: 12/25/2022]
Abstract
Xenogeneic extracellular matrix (ECM) based tissue engineering graft is one of the most promising products for transplantation therapies, which could alleviate the pain of patients and reduce surgery cost. However, in order to put ECM based xenografts into clinical use, the induced inflammatory and immune responses have yet to be resolved. Cell membrane is embedded with membrane proteins for regulation of cell interactions including self-recognition and potent in reducing foreign body rejections. In this study, a novel and facile method for evasion from immune system was developed by coating autologous red blood cell membrane as a disguise on xenogeneic ECM based tissue engineering graft surface. Porcine source Living Hyaline Cartilage Graft (LhCG) and decellularized LhCG (dLhCG) established by our group for cartilage tissue engineering were chosen as model grafts. The cell membrane coating was quite stable on xenografts with no obvious decrease in amount for 4 weeks. The autologous cell membrane coated xenograft has been proved to be recognized as "self" by immune system on cell, protein and gene levels according to the 14-day lasting in vivo study on rats with less inflammatory cells infiltrated and low inflammation-related cytokines gene expression, showing alleviated acute immune and inflammatory responses.
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Affiliation(s)
- Chao Tao
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 50 Nanyang Ave, 639798, Singapore; Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Xiaolei Nie
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 50 Nanyang Ave, 639798, Singapore
| | - Wenzhen Zhu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 50 Nanyang Ave, 639798, Singapore
| | - Jabed Iqbal
- Department of Pathology, Singapore General Hospital, 20 College Road, Academia, Diagnostics Tower, Level 10, 169856, Singapore
| | - Chenjie Xu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 50 Nanyang Ave, 639798, Singapore
| | - Dong-An Wang
- Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
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20
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Nie X, Yang J, Chuah YJ, Zhu W, Peck Y, He P, Wang D. Full-Scale Osteochondral Regeneration by Sole Graft of Tissue-Engineered Hyaline Cartilage without Co-Engraftment of Subchondral Bone Substitute. Adv Healthc Mater 2020; 9:e1901304. [PMID: 31820592 DOI: 10.1002/adhm.201901304] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 11/05/2019] [Indexed: 12/20/2022]
Abstract
In this study, full-scale osteochondral defects are hypothesized, which penetrate the articular cartilage layer and invade into subchondral bones, and can be fixed by sole graft of tissue-engineered hyaline cartilage without co-engraftment of any subchondral bone substitute. It is hypothesized that given a finely regenerated articular cartilage shielding on top, the restoration of subchondral bones can be fulfilled via spontaneous self-remodeling in situ. Hence, the key challenge of osteochondral regeneration lies in restoration of the non-self-regenerative articular cartilage. Here, traumatic osteochondral lesions to be repaired in rabbit knee models are endeavored using novel tissue-engineered hyaline-like cartilage grafts that are produced by 3D cultured porcine chondrocytes in vitro. Comparative trials are conducted in animal models that are implanted with living hyaline cartilage grafts (LhCG) and decellularized LhCG (dLhCG). Sound osteochondral regeneration is gradually revealed from both LhCG and dLhCG-implanted samples 50-100 d after implantation. Quality regeneration in both zones of articular cartilage and subchondral bones are validated by the restored osteochondral composition, structure, phenotype, and mechanical property, which validate the hypothesis of this study.
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Affiliation(s)
- Xiaolei Nie
- School of Chemical and Biomedical EngineeringNanyang Technological University Singapore
| | - Jian Yang
- School of Chemical and Biomedical EngineeringNanyang Technological University Singapore
- The Fifth Affiliated Yongchuan HospitalChongqing Medical University Chongqing China
| | - Yon Jin Chuah
- School of Chemical and Biomedical EngineeringNanyang Technological University Singapore
| | - Wenzhen Zhu
- School of Chemical and Biomedical EngineeringNanyang Technological University Singapore
| | - Yvonne Peck
- School of Chemical and Biomedical EngineeringNanyang Technological University Singapore
| | - Pengfei He
- School of Chemical and Biomedical EngineeringNanyang Technological University Singapore
| | - Dong‐An Wang
- School of Chemical and Biomedical EngineeringNanyang Technological University Singapore
- Department of Biomedical EngineeringCity University of Hong Kong Hong Kong SAR China
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21
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Zhao Z, Fan C, Chen F, Sun Y, Xia Y, Ji A, Wang DA. Progress in Articular Cartilage Tissue Engineering: A Review on Therapeutic Cells and Macromolecular Scaffolds. Macromol Biosci 2019; 20:e1900278. [PMID: 31800166 DOI: 10.1002/mabi.201900278] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 09/19/2019] [Indexed: 12/19/2022]
Abstract
Repair and regeneration of articular cartilage lesions have always been a major challenge in the medical field due to its peculiar structure (e.g., sparsely distributed chondrocytes, no blood supply, no nerves). Articular cartilage tissue engineering is considered as one promising strategy to achieve reconstruction of cartilage. With this perspective, the articular cartilage tissue engineering has been widely studied. Here, the recent progress of articular cartilage tissue engineering is reviewed. The ad hoc therapeutic cells and growth factors for cartilage regeneration are summarized and discussed. Various types of bio/macromolecular scaffolds together with their pros and cons are also reviewed and elaborated.
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Affiliation(s)
- Zhongyi Zhao
- Department of Traumatic Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Changjiang Fan
- Department of Human Anatomy, Histology and Embryology, College of Medicine, Qingdao University, Qingdao, 266021, China.,Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, P. R. China
| | - Feng Chen
- Department of Traumatic Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yutai Sun
- School of Information Engineering, Shandong Vocational College of Science & Technology, Weifang, 261053, P. R. China
| | - Yujun Xia
- Department of Human Anatomy, Histology and Embryology, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Aiyu Ji
- Department of Traumatic Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Dong-An Wang
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
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22
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Nie X, Chuah YJ, He P, Wang DA. Engineering a multiphasic, integrated graft with a biologically developed cartilage-bone interface for osteochondral defect repair. J Mater Chem B 2019; 7:6515-6525. [PMID: 31576900 DOI: 10.1039/c9tb00822e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Tissue engineering is a promising approach to repair osteochondral defects, yet successful reconstruction of different layers in an integrated graft, especially the interface remains challenging. The multiphasic, functionally integrated tissue engineering graft described herein mimics the entire osteochondral tissue in terms of structure and composition at the cartilage, bone and cartilage-bone interface layer to repair osteochondral defects. In this manuscript, we report the fabrication of a multiphasic graft via bonding of a cartilaginous hydrogel and a sintered poly(lactic-co-glycolic acid) microsphere scaffold by an endogenous fibrotic cartilaginous extracellular matrix. We demonstrated that culturing chondrocytes within the alginate hydrogel conjugated to the poly(lactic-co-glycolic acid) scaffold allows for (i) gradient transition and integration from the cartilage layer to the subchondral bone layer as assessed by scanning electron microscopy, histology and biochemistry, and (ii) superior tissue repair efficacy in a rabbit knee defect model. Industrialization of the graft remains an unsolved challenge as after decellularization the tissue repair efficacy of the graft decreased. Taken together, the multiphasic osteochondral graft repaired the osteochondral defects successfully and has the potential to be applied clinically as an implant in orthopaedic surgery.
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Affiliation(s)
- Xiaolei Nie
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
| | - Yon Jin Chuah
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
| | - Pengfei He
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
| | - Dong-An Wang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore and Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR.
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23
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Fan C, Ling Y, Deng W, Xue J, Sun P, Wang DA. A novel cell encapsulatable cryogel (CECG) with macro-porous structures and high permeability: a three-dimensional cell culture scaffold for enhanced cell adhesion and proliferation. ACTA ACUST UNITED AC 2019; 14:055006. [PMID: 31269472 DOI: 10.1088/1748-605x/ab2efd] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Hydrogel scaffold is a popular cell delivery vehicle in tissue engineering and regenerative medicine due to its capability to encapsulate cells as well as its modifiable properties. However, the inherent submicron- or nano-sized polymer networks of conventional hydrogel will produce spatial constraints on cellular activities of encapsulated cells. In this study, we endeavor to develop an innovative cell encapsulatable cryogel (CECG) platform with interconnected macro-pores, by combining cell cryopreservation technique with cryogel preparation process. The hyaluronan (HA) CECG constructs are fabricated under the freezing conditions via UV photo-crosslinking of the HA methacrylate (HA-MA) that are dissolved in the 'freezing solvent', namely the phosphate buffered saline supplemented with dimethyl sulphoxide and fetal bovine serum. Two model cell types, chondrocytes and human mesenchymal stem cells (hMSCs), can be uniformly three-dimensionally encapsulated into HA CECG constructs with high cell viability, respectively. The macro-porous structures, generated from phase separation under freezing, endow HA CECG constructs with higher permeability and more living space for cell growth. The chondrocytes encapsulated in HA CECG possess enhanced proliferation and extracellular matrix secretion than those in conventional HA hydrogels. In addition, the HA-Gel CECG constructs, fabricated with HA-MA and gelatin methacrylate precursors, provide cell-adhesive interfaces to facilitate hMSCs attachment and proliferation. The results of this work may lay the foundation for us to explore the applications of the CECG-based scaffolds in the field of tissue engineering and regenerative medicine.
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Affiliation(s)
- Changjiang Fan
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, Shandong 266021, People's Republic of China
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24
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Nie X, Wang DA. Decellularized orthopaedic tissue-engineered grafts: biomaterial scaffolds synthesised by therapeutic cells. Biomater Sci 2018; 6:2798-2811. [DOI: 10.1039/c8bm00772a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In orthopaedic surgery, the reconstruction of musculoskeletal defects is a constant challenge.
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Affiliation(s)
- Xiaolei Nie
- Division of Bioengineering
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637457
- Singapore
| | - Dong-An Wang
- Division of Bioengineering
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637457
- Singapore
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25
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Niu Y, Zhang X, Si T, Zhang Y, Qi L, Zhao G, Xu RX, He X, Zhao Y. Simultaneous Measurements of Geometric and Viscoelastic Properties of Hydrogel Microbeads Using Continuous-Flow Microfluidics with Embedded Electrodes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1702821. [PMID: 29140604 DOI: 10.1002/smll.201702821] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 09/20/2017] [Indexed: 06/07/2023]
Abstract
Geometric and mechanical characterizations of hydrogel materials at the microscale are attracting increasing attention due to their importance in tissue engineering, regenerative medicine, and drug delivery applications. Contemporary approaches for measuring the these properties of hydrogel microbeads suffer from low-throughput, complex system configuration, and measurement inaccuracy. In this work, a continuous-flow device is developed to measure geometric and viscoelastic properties of hydrogel microbeads by flowing the microbeads through a tapered microchannel with an array of interdigitated microelectrodes patterned underneath the channel. The viscoelastic properties are derived from the trajectories of microbeads using a quasi-linear viscoelastic model. The measurement is independent of the applied volumetric flow rate. The results show that the geometric and viscoelastic properties of Ca-alginate hydrogel microbeads can be determined independently and simultaneously. The bulky high-speed optical systems are eliminated, simplifying the system configuration and making it a truly miniaturized device. A throughput of up to 394 microbeads min-1 is achieved. This study may provide a powerful tool for mechanical profiling of hydrogel microbeads to support their wide applications.
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Affiliation(s)
- Ye Niu
- Department of Biomedical Engineering, the Ohio State University, 1080 Carmack Road, Columbus, OH, 43210, USA
- Department of Mechanical and Aerospace Engineering, the Ohio State University, Columbus, OH, 43210, USA
| | - Xu Zhang
- Department of Biomedical Engineering, the Ohio State University, 1080 Carmack Road, Columbus, OH, 43210, USA
| | - Ting Si
- Department of Biomedical Engineering, the Ohio State University, 1080 Carmack Road, Columbus, OH, 43210, USA
- Department of Engineering Science, University of Science and Technology of China, Jinzhai Road 96, Hefei, 230026, P. R. China
| | - Yuntian Zhang
- Department of Biomedical Engineering, the Ohio State University, 1080 Carmack Road, Columbus, OH, 43210, USA
- Department of Electronic Science and Technology, University of Science and Technology of China, Jinzhai Road 96, Hefei, 230026, P. R. China
| | - Lin Qi
- Department of Biomedical Engineering, the Ohio State University, 1080 Carmack Road, Columbus, OH, 43210, USA
| | - Gang Zhao
- Department of Electronic Science and Technology, University of Science and Technology of China, Jinzhai Road 96, Hefei, 230026, P. R. China
| | - Ronald X Xu
- Department of Biomedical Engineering, the Ohio State University, 1080 Carmack Road, Columbus, OH, 43210, USA
- Department of Engineering Science, University of Science and Technology of China, Jinzhai Road 96, Hefei, 230026, P. R. China
| | - Xiaoming He
- Department of Biomedical Engineering, the Ohio State University, 1080 Carmack Road, Columbus, OH, 43210, USA
| | - Yi Zhao
- Department of Biomedical Engineering, the Ohio State University, 1080 Carmack Road, Columbus, OH, 43210, USA
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26
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Preparation and characterization of gelatin/sericin/carboxymethyl chitosan medical tissue glue. J Appl Biomater Funct Mater 2017; 16:97-106. [DOI: 10.5301/jabfm.5000384] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: The development and application of medical glue has been continuously expanding and advancing. However, there are few glues that combine low-cost with excellent biocompatibility. Methods: We have prepared a medical tissue glue using a gelatin (Gel), sericin (SS) and carboxymethyl chitosan (CMCS) blend solution, cross-linked with 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide (EDC). The combination’s characteristics and microstructure morphology were observed by Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscope (SEM). Bond strength tests were used to measure the bond strength of the glue. To assay blood compatibility, a hemolytic test, dynamic coagulation test and platelet adherence test were also investigated. Further, the cellular behavior of L-929 and a systemic acute toxicity test on the Gel/SS/CMCS tissue glue were also investigated by MTT and H&E staining. Results: Characterization analysis showed that there was stable binding between raw materials, forming an amide bond with homogeneous holes. The bond strength of the tissue glue reached 2.50 ± 0.04 N in 10 minutes, slightly higher than the alpha-cyanoacrylate biological glue (2.25 ± 0.05 N). Blood compatibility tests revealed that the glue had outstanding blood compatibility. Further, cytotoxicity test and systemic acute toxicity test both showed that the glue was without cytotoxicity and not toxic to the body. Conclusions: The Gel/SS/CMCS tissue glue we prepared at low cost had excellent biocompatibility and structural characteristics. It could be a better candidate for tissue engineering in biomedical applications applied in clinical practice to promote skin wound healing and to further reduce the formation of skin wound scars.
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27
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Fu J, Wiraja C, Muhammad HB, Xu C, Wang DA. Improvement of endothelial progenitor outgrowth cell (EPOC)-mediated vascularization in gelatin-based hydrogels through pore size manipulation. Acta Biomater 2017; 58:225-237. [PMID: 28611001 DOI: 10.1016/j.actbio.2017.06.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 06/06/2017] [Accepted: 06/09/2017] [Indexed: 12/11/2022]
Abstract
In addition to chemical compositions, physical properties of scaffolds, such as pore size, can also influence vascularization within the scaffolds. A larger pore has been shown to improve host vascular tissue invasion into scaffolds. However, the influence of pore sizes on vascularization by endothelial cells directly encapsulated in hydrogels remains unknown. In this study, micro-cavitary hydrogels with different pore sizes were created in gelatin-methacrylate hydrogels with dissolvable gelatin microspheres (MS) varying in sizes. The effect of pore sizes on vascular network formation by endothelial progenitor outgrowth cells (EPOCs) encapsulated in hydrogels was then investigated both in vitro and in vivo. When cultured in vitro, vascular networks were formed around pore structures in micro-cavitary hydrogels. The middle pore size supported best differentiation of EPOCs and thus best hydrogel vascularization in vitro. When implantation in vivo, functional connections between encapsulated EPOCs and host vasculature micro-cavitary hydrogels were established. Vascularization in vivo was promoted best in hydrogels with the large pore size due to the increased vascular tissue invasion. These results highlight the difference between in vitro and in vivo culture conditions and indicate that pore sizes shall be designed for in vitro and in vivo hydrogel vascularization respectively. Pore sizes for hydrogel vascularization in vitro shall be middle ones and pore sizes for hydrogel vascularization in vivo shall be large ones. STATEMENT OF SIGNIFICANCE This study reveals that the optimal pore size for hydrogel vascularization in vitro and in vivo is different. The middle pore size supported best differentiation of EPOCs and thus best hydrogel vascularization in vitro, while vascularization in vivo was promoted best in hydrogels with the large pore size due to the increased vascular tissue invasion. These results highlight the difference between in vitro and in vivo culture conditions and indicate that pore sizes shall be designed for in vitro and in vivo hydrogel vascularization respectively. Pore sizes for hydrogel vascularization in vitro shall be middle ones and pore sizes for hydrogel vascularization in vivo shall be large ones.
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28
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Peck Y, Leom LT, Low PFP, Wang DA. Establishment of an in vitro three-dimensional model for cartilage damage in rheumatoid arthritis. J Tissue Eng Regen Med 2017; 12:e237-e249. [PMID: 28079986 DOI: 10.1002/term.2399] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 11/15/2016] [Accepted: 01/09/2017] [Indexed: 11/09/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease that leads to progressive joint destruction. To further understand the process of rheumatoid cartilage damage, an in vitro model consisting of an interactive tri-culture of synovial fibroblasts (SFs), LPS-stimulated macrophages and a primary chondrocyte-based tissue-engineered construct was established. The tissue-engineered construct has a composition similar to that of human cartilage, which is rich in collagen type II and proteoglycans. Data generated from this model revealed that healthy chondrocytes were activated in the presence of SFs and macrophages. The activated chondrocytes subsequently displayed aberrant behaviours as seen in a disease state such as increased apoptosis, decreased gene expression for matrix components such as type II collagen and aggrecan, increased gene expression for tissue-degrading enzymes (MMP-1, -3, -13 and ADAMTS-4, -5), and upregulation of inflammatory mediator gene expression (TNF-α, IL-1β, IL-6 and IKBKB). Additionally, the inclusion of SFs and macrophages in the model enabled both cell types to more closely replicate an in vivo role in mediating cartilage destruction. This is evidenced by extensive matrix loss, detected in the model through immunostaining and biochemical analysis. Subsequent drug treatment with celecoxib has shown that the model was able to respond to the therapeutic effects of this drug by reversing cartilage damage. This study showed that the model was able to recapitulate certain pathological features of an RA cartilage. If properly validated, this model potentially can be used for screening new therapeutic drugs and strategies, thereby contributing to the improvement of anti-rheumatic treatment. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Yvonne Peck
- Division of BioEngineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
| | - Li Ting Leom
- Division of BioEngineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
| | - Pei Fen Patricia Low
- Division of BioEngineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
| | - Dong-An Wang
- Division of BioEngineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
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29
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Yao H, Xue J, Wang Q, Xie R, Li W, Liu S, Cai J, Qin D, Wang DA, Ren L. Glucosamine-modified polyethylene glycol hydrogel-mediated chondrogenic differentiation of human mesenchymal stem cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [PMID: 28629066 DOI: 10.1016/j.msec.2017.05.043] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Glucosamine (GA) is an important cartilage matrix precursor for the glycosaminoglycan biochemical synthesis, and has positive effects on cartilage regeneration, particularly in osteoarthritis therapy. However, it has not been used as a bioactive group in scaffolds for cartilage repair widely. In this study, we synthesized modified polyethylene glycol (PEG) hydrogel with glucosamine and then encapsulated human bone mesenchymal stem cells (hBMSCs) in the hydrogel to induce the differentiation of hBMSCs into chondrocytes in three-dimensional culture. The GA-modified PEG hydrogels promoted the chondrogenesis of hBMSCs, particularly in the concentration of 5mM and 10mM. The subcutaneous transplantation of 10mM GA-modified hydrogels with hBMSCs formed cartilage-like blocks in vivo for 8weeks. Importantly, with glucosamine increase, the modified hydrogels down-regulated the fibrosis and hypertrophic cartilage markers in protein level. Therefore, glucosamine modified PEG hydrogels facilitated the chondrogenesis of hBMSCs, which might represent a new method for cartilage repair using a tissue-engineering approach.
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Affiliation(s)
- Hang Yao
- School of Materials Science and Engineering, South China University of Technology, Wushan RD, Tianhe District, Guangzhou 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China; Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China; Division of Bioengineering, School of Chemical & Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, N1.3-B2-13, 637457, Singapore
| | - Jingchen Xue
- School of Materials Science and Engineering, South China University of Technology, Wushan RD, Tianhe District, Guangzhou 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Qunfang Wang
- School of Materials Science and Engineering, South China University of Technology, Wushan RD, Tianhe District, Guangzhou 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Renjian Xie
- School of Materials Science and Engineering, South China University of Technology, Wushan RD, Tianhe District, Guangzhou 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Weichang Li
- School of Materials Science and Engineering, South China University of Technology, Wushan RD, Tianhe District, Guangzhou 510641, China
| | - Sa Liu
- School of Materials Science and Engineering, South China University of Technology, Wushan RD, Tianhe District, Guangzhou 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Jinglei Cai
- Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Dajiang Qin
- Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.
| | - Dong-An Wang
- Division of Bioengineering, School of Chemical & Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, N1.3-B2-13, 637457, Singapore.
| | - Li Ren
- School of Materials Science and Engineering, South China University of Technology, Wushan RD, Tianhe District, Guangzhou 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China.
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30
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Fan C, Wang DA. Macroporous Hydrogel Scaffolds for Three-Dimensional Cell Culture and Tissue Engineering. TISSUE ENGINEERING PART B-REVIEWS 2017; 23:451-461. [PMID: 28067115 DOI: 10.1089/ten.teb.2016.0465] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Hydrogels have been promising candidate scaffolds for cell delivery and tissue engineering due to their tissue-like physical properties and capability for homogeneous cell loading. However, the encapsulated cells are generally entrapped and constrained in the submicron- or nanosized gel networks, seriously limiting cell growth and tissue formation. Meanwhile, the spatially confined settlement inhibits attachment and spreading of anchorage-dependent cells, leading to their apoptosis. In recent years, macroporous hydrogels have attracted increasing attention in use as cell delivery vehicles and tissue engineering scaffolds. The introduction of macropores within gel scaffolds not only improves their permeability for better nutrient transport but also creates space/interface for cell adhesion, proliferation, and extracellular matrix deposition. Herein, we will first review the development of macroporous gel scaffolds and outline the impact of macropores on cell behaviors. In the first part, the advantages and challenges of hydrogels as three-dimensional (3D) cell culture scaffolds will be described. In the second part, the fabrication of various macroporous hydrogels will be presented. Third, the enhancement of cell activities within macroporous gel scaffolds will be discussed. Finally, several crucial factors that are envisaged to propel the improvement of macroporous gel scaffolds are proposed for 3D cell culture and tissue engineering.
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Affiliation(s)
- Changjiang Fan
- 1 Institute for Translational Medicine, College of Medicine, Qingdao University , Qingdao, People's Republic of China
| | - Dong-An Wang
- 2 School of Chemical and Biomedical Engineering, Nanyang Technological University , Singapore, Singapore
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31
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Chuah YJ, Peck Y, Lau JEJ, Hee HT, Wang DA. Hydrogel based cartilaginous tissue regeneration: recent insights and technologies. Biomater Sci 2017; 5:613-631. [DOI: 10.1039/c6bm00863a] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
Hydrogel based technologies has been extensively employed in both exploratory research and clinical applications to address numerous existing challenges in the regeneration of articular cartilage and intervertebral disc.
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Affiliation(s)
- Yon Jin Chuah
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Yvonne Peck
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Jia En Josias Lau
- School of Chemical & Life Sciences
- Singapore Polytechnic
- Singapore 139651
- Singapore
| | - Hwan Tak Hee
- Lee Kong Chian School of Medicine
- Nanyang Technological University
- Singapore 636921
- Singapore
- Pinnacle Spine & Scoliosis Centre
| | - Dong-An Wang
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
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32
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Leong W, Fan C, Wang DA. A novel gelatin-based micro-cavitary hydrogel for potential application in delivery of anchorage dependent cells: A study with vasculogenesis model. Colloids Surf B Biointerfaces 2016; 146:334-42. [DOI: 10.1016/j.colsurfb.2016.06.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 04/16/2016] [Accepted: 06/15/2016] [Indexed: 12/12/2022]
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33
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Chen Z, Wei J, Zhu J, Liu W, Cui J, Li H, Chen F. Chm-1 gene-modified bone marrow mesenchymal stem cells maintain the chondrogenic phenotype of tissue-engineered cartilage. Stem Cell Res Ther 2016; 7:70. [PMID: 27150539 PMCID: PMC4858869 DOI: 10.1186/s13287-016-0328-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 02/01/2016] [Accepted: 04/18/2016] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Marrow mesenchymal stem cells (MSCs) can differentiate into specific phenotypes, including chondrocytes, and have been widely used for cartilage tissue engineering. However, cartilage grafts from MSCs exhibit phenotypic alternations after implantation, including matrix calcification and vascular ingrowth. METHODS We compared chondromodulin-1 (Chm-1) expression between chondrocytes and MSCs. We found that chondrocytes expressed a high level of Chm-1. We then adenovirally transduced MSCs with Chm-1 and applied modified cells to engineer cartilage in vivo. RESULTS A gross inspection and histological observation indicated that the chondrogenic phenotype of the tissue-engineered cartilage graft was well maintained, and the stable expression of Chm-1 was detected by immunohistological staining in the cartilage graft derived from the Chm-1 gene-modified MSCs. CONCLUSIONS Our findings defined an essential role for Chm-1 in maintaining chondrogenic phenotype and demonstrated that Chm-1 gene-modified MSCs may be used in cartilage tissue engineering.
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Affiliation(s)
- Zhuoyue Chen
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, 229 TaiBai North Road, Xi'an, Shaanxi Province, 710069, P.R. China.,Provincial Key Laboratory of Biotechnology of Shaanxi, Northwest University, 229 TaiBai North Road, Xi'an, Shaanxi Province, 710069, P.R. China
| | - Jing Wei
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, 229 TaiBai North Road, Xi'an, Shaanxi Province, 710069, P.R. China
| | - Jun Zhu
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, 229 TaiBai North Road, Xi'an, Shaanxi Province, 710069, P.R. China
| | - Wei Liu
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, 229 TaiBai North Road, Xi'an, Shaanxi Province, 710069, P.R. China
| | - Jihong Cui
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, 229 TaiBai North Road, Xi'an, Shaanxi Province, 710069, P.R. China.,Provincial Key Laboratory of Biotechnology of Shaanxi, Northwest University, 229 TaiBai North Road, Xi'an, Shaanxi Province, 710069, P.R. China
| | - Hongmin Li
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, 229 TaiBai North Road, Xi'an, Shaanxi Province, 710069, P.R. China.,Provincial Key Laboratory of Biotechnology of Shaanxi, Northwest University, 229 TaiBai North Road, Xi'an, Shaanxi Province, 710069, P.R. China
| | - Fulin Chen
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, 229 TaiBai North Road, Xi'an, Shaanxi Province, 710069, P.R. China. .,Provincial Key Laboratory of Biotechnology of Shaanxi, Northwest University, 229 TaiBai North Road, Xi'an, Shaanxi Province, 710069, P.R. China.
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He P, Fu J, Wang DA. Murine pluripotent stem cells derived scaffold-free cartilage grafts from a micro-cavitary hydrogel platform. Acta Biomater 2016; 35:87-97. [PMID: 26911880 DOI: 10.1016/j.actbio.2016.02.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 01/18/2016] [Accepted: 02/18/2016] [Indexed: 12/31/2022]
Abstract
By means of appropriate cell type and scaffold, tissue-engineering approaches aim to construct grafts for cartilage repair. Pluripotent stem cells especially induced pluripotent stem cells (iPSCs) are of promising cell candidates due to the pluripotent plasticity and abundant cell source. We explored three dimensional (3D) culture and chondrogenesis of murine iPSCs (miPSCs) on an alginate-based micro-cavity hydrogel (MCG) platform in pursuit of fabricating synthetic-scaffold-free cartilage grafts. Murine embryonic stem cells (mESCs) were employed in parallel as the control. Chondrogenesis was fulfilled using a consecutive protocol via mesoderm differentiation followed by chondrogenic differentiation; subsequently, miPSC and mESC-seeded constructs were further respectively cultured in chondrocyte culture (CC) medium. Alginate phase in the constructs was then removed to generate a graft only comprised of induced chondrocytic cells and cartilaginous extracellular matrix (ECMs). We found that from the mESC-seeded constructs, formation of intact grafts could be achieved in greater sizes with relatively fewer chondrocytic cells and abundant ECMs; from miPSC-seeded constructs, relatively smaller sized cartilaginous grafts could be formed by cells with chondrocytic phenotype wrapped by abundant and better assembled collagen type II. This study demonstrated successful creation of pluripotent stem cells-derived cartilage/chondroid graft from a 3D MCG interim platform. By the support of materials and methodologies established from this study, particularly given the autologous availability of iPSCs, engineered autologous cartilage engraftment may be potentially fulfilled without relying on the limited and invasive autologous chondrocytes acquisition. STATEMENT OF SIGNIFICANCE In this study, we explored chondrogenic differentiation of pluripotent stem cells on a 3D micro-cavitary hydrogel interim platform and creation of pluripotent stem cells-derived cartilage/chondroid graft via a consecutive procedure. Our results demonstrated chondrogenic differentiation could be realized on the platform via mesoderm differentiation. The mESCs/miPSCs derived chondrocytic cells were further cultured to finally generate a pluripotent stem cells-derived scaffold-free construct based on the micro-cavitary hydrogel platform, in which alginate hydrogel could be removed finally. Our results showed that miPSC-derived graft could be formed by cells with chondrocytic phenotype wrapped by abundant and assembled collagen type II. To our knowledge, this study is the first study that initials from pluripotent stem cell seeding on 3D scaffold environment and ends with a scaffold-free chondrogenic micro-tissue. By the support of materials and methodologies established from this study, engineered autologous iPSC-derived cartilage engraftment may be potentially developed instead of autologous chondrocytes grafts that have limited source.
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35
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Peck Y, He P, Chilla GSVN, Poh CL, Wang DA. A preclinical evaluation of an autologous living hyaline-like cartilaginous graft for articular cartilage repair: a pilot study. Sci Rep 2015; 5:16225. [PMID: 26549401 PMCID: PMC4637897 DOI: 10.1038/srep1622510.1038/srep16225] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 10/12/2015] [Indexed: 11/19/2022] Open
Abstract
In this pilot study, an autologous synthetic scaffold-free construct with hyaline quality, termed living hyaline cartilaginous graft (LhCG), was applied for treating cartilage lesions. Implantation of autologous LhCG was done at load-bearing regions of the knees in skeletally mature mini-pigs for 6 months. Over the course of this study, significant radiographical improvement in LhCG treated sites was observed via magnetic resonance imaging. Furthermore, macroscopic repair was effected by LhCG at endpoint. Microscopic inspection revealed that LhCG engraftment restored cartilage thickness, promoted integration with surrounding native cartilage, produced abundant cartilage-specific matrix molecules, and re-established an intact superficial tangential zone. Importantly, the repair efficacy of LhCG was quantitatively shown to be comparable to native, unaffected cartilage in terms of biochemical composition and biomechanical properties. There were no complications related to the donor site of cartilage biopsy. Collectively, these results imply that LhCG engraftment may be a viable approach for articular cartilage repair.
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Affiliation(s)
- Yvonne Peck
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, 637457, Singapore
| | - Pengfei He
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, 637457, Singapore
| | - Geetha Soujanya V N Chilla
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, 637457, Singapore
| | - Chueh Loo Poh
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, 637457, Singapore
| | - Dong-An Wang
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, 637457, Singapore
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Peck Y, He P, Chilla GSVN, Poh CL, Wang DA. A preclinical evaluation of an autologous living hyaline-like cartilaginous graft for articular cartilage repair: a pilot study. Sci Rep 2015. [DOI: 10.1038/srep16225] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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37
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Fan C, Wang DA. A biodegradable PEG-based micro-cavitary hydrogel as scaffold for cartilage tissue engineering. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.02.038] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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38
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Lau TT, Leong W, Peck Y, Su K, Wang DA. Use of Interim Scaffolding and Neotissue Development to Produce a Scaffold-Free Living Hyaline Cartilage Graft. Methods Mol Biol 2015; 1340:153-60. [PMID: 26445836 DOI: 10.1007/978-1-4939-2938-2_10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
The fabrication of three-dimensional (3D) constructs relies heavily on the use of biomaterial-based scaffolds. These are required as mechanical supports as well as to translate two-dimensional cultures to 3D cultures for clinical applications. Regardless of the choice of scaffold, timely degradation of scaffolds is difficult to achieve and undegraded scaffold material can lead to interference in further tissue development or morphogenesis. In cartilage tissue engineering, hydrogel is the highly preferred scaffold material as it shares many similar characteristics with native cartilaginous matrix. Hence, we employed gelatin microspheres as porogens to create a microcavitary alginate hydrogel as an interim scaffold to facilitate initial chondrocyte 3D culture and to establish a final scaffold-free living hyaline cartilaginous graft (LhCG) for cartilage tissue engineering.
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Affiliation(s)
- Ting Ting Lau
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, N1.3-B2-13, Singapore, Singapore, 637457
| | - Wenyan Leong
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, N1.3-B2-13, Singapore, Singapore, 637457
| | - Yvonne Peck
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, N1.3-B2-13, Singapore, Singapore, 637457
| | - Kai Su
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, N1.3-B2-13, Singapore, Singapore, 637457
| | - Dong-An Wang
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, N1.3-B2-13, Singapore, Singapore, 637457.
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Su K, Wang C. Recent advances in the use of gelatin in biomedical research. Biotechnol Lett 2015; 37:2139-45. [PMID: 26160110 DOI: 10.1007/s10529-015-1907-0] [Citation(s) in RCA: 246] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 06/29/2015] [Indexed: 10/23/2022]
Abstract
The biomacromolecule, gelatin, has increasingly been used in biomedicine-beyond its traditional use in food and cosmetics. The appealing advantages of gelatin, such as its cell-adhesive structure, low cost, off-the-shelf availability, high biocompatibility, biodegradability and low immunogenicity, among others, have made it a desirable candidate for the development of biomaterials for tissue engineering and drug delivery. Gelatin can be formulated in the form of nanoparticles, employed as size-controllable porogen, adopted as surface coating agent and mixed with synthetic or natural biopolymers forming composite scaffolds. In this article, we review recent advances in the versatile applications of gelatin within biomedical context and attempt to draw upon its advantages and potential challenges.
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Affiliation(s)
- Kai Su
- CSIRO Manufacturing Flagship, Bayview Avenue, Clayton, VIC, 3169, Australia
| | - Chunming Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, N22-6011, Taipa, Macau, Special Administrative Region, People's Republic of China.
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40
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Supplementation of growth differentiation factor-5 increases proliferation and size of chondrogenic pellets of human umbilical cord-derived perivascular stem cells. Tissue Eng Regen Med 2015. [DOI: 10.1007/s13770-015-0113-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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41
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Takei T, Aokawa R, Shigemitsu T, Kawakami K, Yoshida M. Fabrication of uniformly cell-laden porous scaffolds using a gas-in-liquid templating technique. J Biosci Bioeng 2015; 120:577-81. [PMID: 25912452 DOI: 10.1016/j.jbiosc.2015.03.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 03/08/2015] [Accepted: 03/25/2015] [Indexed: 12/18/2022]
Abstract
Design of porous scaffolds in tissue engineering field was challenging. Uniform immobilization of cells in the scaffolds with high porosity was essential for homogeneous tissue formation. The present study was aimed at fabricating uniformly cell-laden porous scaffolds with porosity >74% using the gas-in-liquid foam templating technique. To this end, we used gelatin, microbial transglutaminase and argon gas as a scaffold material, cross-linker of the protein and porogen of scaffold, respectively. We confirmed that a porosity of >74% could be achieved by increasing the gas volume delivered to a gelatin solution. Pore size in the scaffold could be controlled by stirring speed, stirring time and the pore size of the filter through which the gas passed. The foaming technique enabled us to uniformly immobilize a human hepatoblastoma cell line in scaffold. Engraftment efficiency of the cell line entrapped within the scaffold in nude mice was higher than that of cells in free-form. These results showed that the uniformly cell-laden porous scaffolds were promising for tissue engineering.
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Affiliation(s)
- Takayuki Takei
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
| | - Ryuta Aokawa
- Department of Chemical Engineering, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0385, Japan.
| | - Takamasa Shigemitsu
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
| | - Koei Kawakami
- Department of Chemical Engineering, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0385, Japan.
| | - Masahiro Yoshida
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
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Fan C, Wang DA. Effects of permeability and living space on cell fate and neo-tissue development in hydrogel-based scaffolds: a study with cartilaginous model. Macromol Biosci 2015; 15:535-45. [PMID: 25557976 DOI: 10.1002/mabi.201400453] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 11/27/2014] [Indexed: 01/20/2023]
Abstract
One bottleneck in tissue regeneration with hydrogel scaffolds is the limited understanding of the crucial factors for controlling hydrogel's physical microenvironments to regulate cell fate. Here, the effects of permeability and living space of hydrogels on encapsulated cells' behavior were evaluated, respectively. Three model hydrogel-based constructs are fabricated by using photo-crosslinkable hyaluronic acid as precursor and chondrocytes as model cell type. The better permeable hydrogels facilitate better cell viability and rapid proliferation, which lead to increased production of extracellular matrix (ECM), e.g. collagen, glycosaminoglycan. By prolonged culture, nano-sized hydrogel networks inhibit neo-tissue development, and the presence of macro-porous living spaces significantly enhance ECM deposition via forming larger cell clusters and eventually induce formation of scaffold-free neo-tissue islets. The results of this work demonstrate that the manipulation and optimization of hydrogel microenvironments, namely permeability and living space, are crucial to direct cell fate and neo-tissue formation.
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Affiliation(s)
- Changjiang Fan
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, 637457
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43
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Fan C, Wang DA. Potential use of alginate beads as a chondrocyte delivery vehicle and stepwise dissolving porogen in a hydrogel scaffold for cartilage tissue engineering. RSC Adv 2015. [DOI: 10.1039/c5ra15376j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A chondroitin sulfate (CS)–alginate bead composite gel (CS–ABG) is developed, and which exhibits superiority to aid cartilage regeneration.
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Affiliation(s)
- Changjiang Fan
- Division of Bioengineering
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637457
- Singapore
| | - Dong-An Wang
- Division of Bioengineering
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637457
- Singapore
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Li Z, Cao B, Wang X, Ye K, Li S, Ding J. Effects of RGD nanospacing on chondrogenic differentiation of mesenchymal stem cells. J Mater Chem B 2015; 3:5197-5209. [DOI: 10.1039/c5tb00455a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
RGD nanopatterns were generated on nonfouling PEG hydrogels to explore the effects of RGD nanospacing on adhesion and chondrogenic differentiation of mesenchymal stem cells.
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Affiliation(s)
- Zhenhua Li
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science
- Advanced Materials Laboratory
- Fudan University
| | - Bin Cao
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science
- Advanced Materials Laboratory
- Fudan University
| | - Xuan Wang
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science
- Advanced Materials Laboratory
- Fudan University
| | - Kai Ye
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science
- Advanced Materials Laboratory
- Fudan University
| | - Shiyu Li
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science
- Advanced Materials Laboratory
- Fudan University
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science
- Advanced Materials Laboratory
- Fudan University
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Su K, Edwards SL, Tan KS, White JF, Kandel S, Ramshaw JA, Gargett CE, Werkmeister JA. Induction of endometrial mesenchymal stem cells into tissue-forming cells suitable for fascial repair. Acta Biomater 2014; 10:5012-5020. [PMID: 25194931 DOI: 10.1016/j.actbio.2014.08.031] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 08/15/2014] [Accepted: 08/27/2014] [Indexed: 12/16/2022]
Abstract
Pelvic organ prolapse is a major hidden burden affecting almost one in four women. It is treated by reconstructive surgery, often augmented with synthetic mesh. To overcome the growing concerns of using current synthetic meshes coupled with the high risk of reoperation, a tissue engineering strategy has been developed, adopting a novel source of mesenchymal stem cells. These cells are derived from the highly regenerative endometrial lining of the uterus (eMSCs) and will be delivered in vivo using a new gelatin-coated polyamide scaffold. In this study, gelatin properties were optimized by altering the gelatin concentration and extent of crosslinking to produce the desired gelation and degradation rate in culture. Following cell seeding of uncoated polyamide (PA) and gelatin-coated meshes (PA+G), the growth rate of eMSCs on the PA+G scaffolds was more than that on the PA alone, without compromising cell shape. eMSCs cultured on the PA+G scaffold retained their phenotype, as demonstrated by W5C5/SUSD2 (eMSC-specific marker) immunocytochemistry. Additionally, eMSCs were induced to differentiate into smooth muscle cells (SMC), as shown by immunofluorescence for smooth muscle protein 22 and smooth muscle myosin heavy chain. eMSCs also differentiated into fibroblast-like cells when treated with connective tissue growth factor with enhanced detection of Tenascin-C and collagen type I as well as new tissue formation, as seen by Masson's trichrome. In summary, it was demonstrated that the PA+G scaffold is an appropriate platform for eMSC delivery, proliferation and differentiation into SMC and fibroblasts, with good biocompatibility and the capacity to regenerate neo-tissue.
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46
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Ingavle GC, Gehrke SH, Detamore MS. The bioactivity of agarose-PEGDA interpenetrating network hydrogels with covalently immobilized RGD peptides and physically entrapped aggrecan. Biomaterials 2014; 35:3558-70. [PMID: 24462353 PMCID: PMC3936106 DOI: 10.1016/j.biomaterials.2014.01.002] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 01/01/2014] [Indexed: 10/25/2022]
Abstract
Our previous reports of interpenetrating networks (IPNs) have demonstrated drastic improvements in mechanical performance relative to individual constituent networks while maintaining viability of encapsulated cells. The current study investigated whether covalent linkage of RGD to the poly(ethylene glycol) diacrylate (PEGDA) network could improve upon cell viability and performance of agarose-PEGDA IPNs compared to unmodified IPNs (control) and to IPNs with different concentrations of physically entrapped aggrecan, providing a point of comparison to previous work. The inclusion of RGD or aggrecan generally did not adversely affect mechanical performance, and significantly improved chondrocyte viability and performance. Although both 4 and 100 μg/mL of aggrecan improved cell viability, only 100 μg/mL aggrecan was clearly beneficial to improving biosynthesis, whereas 100 μg/mL of RGD was beneficial to both chondrocyte viability and biosynthesis. Interestingly, clustering of cells within the IPNs with RGD and the higher aggrecan concentration were observed, likely indicating cell migration and/or preferred regional proliferation. This clustering resulted in a clearly visible enhancement of matrix production compared to the other IPNs. With this cell migration, we also observed significant cell proliferation and matrix synthesis beyond the periphery of the IPN, which could have important implications in facilitating integration with surrounding cartilage in vivo. With RGD and aggrecan (at its higher concentration) providing substantial and comparable improvements in cell performance, RGD would be the recommended bioactive signal for this particular IPN formulation and cell source given the significant cost savings and potentially more straightforward regulatory pathway in commercialization.
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Affiliation(s)
- Ganesh C Ingavle
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, KS 66045-7609, USA.
| | - Stevin H Gehrke
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, KS 66045-7609, USA.
| | - Michael S Detamore
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, KS 66045-7609, USA.
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47
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Peck Y, Ng LY, Goh JYL, Gao C, Wang DA. A three-dimensionally engineered biomimetic cartilaginous tissue model for osteoarthritic drug evaluation. Mol Pharm 2014; 11:1997-2008. [PMID: 24579704 DOI: 10.1021/mp500026x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Osteoarthritis (OA) is primarily characterized by focal cartilage destruction and synovitis. Presently, the pathogenesis of OA remains unclear, and an effective treatment methodology is an unmet need. To this end, a plethora of animal models and monolayer models have been developed, but they are faced with the limitation of high cost and inability to recapitulate a pure hyaline cartilaginous phenotype, which is important in studying the efficacy of therapeutic agents. We have previously developed a living hyaline cartilage graft (LhCG) that accurately presented a pure hyaline cartilage phenotype. Here, through the coculture of lipopolysaccharide (LPS)-activated macrophages with LhCG, we hypothesized that an accurate OA disease model may be developed. Subsequently, this model was evaluated for its accuracy for in vitro drug testing. Results indicated that chondrocyte proliferation and apoptosis were increased in the disease model. Additionally, extracellular matrix (ECM) synthesis increased as indicated by the increased anabolic gene expression levels, such as collagen type II and aggrecan. Up-regulation of matrix metalloproteinase-1 (MMP-1) and MMP-3 genes suggested increased degradative activity, while chondrocytic hypertrophic differentiation was observed. Furthermore, extensive degradation of collagen type II and glycosaminoglycans (GAGs) were also observed. The results of celecoxib treatment on our model showed inhibition of nitric oxide (NO) and prostaglandin E2 (PGE2) production, as well as down-regulation of MMP-1 and MMP-3 expression. Taken together, the results suggested that this coculture model was able to sufficiently mimic the native, diseased OA cartilage, while drug testing results confirmed its suitability as an in vitro model for predicting native cartilage response to drug treatment.
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Affiliation(s)
- Yvonne Peck
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University , Singapore 637457
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48
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Regulation of human mesenchymal stem cells differentiation into chondrocytes in extracellular matrix-based hydrogel scaffolds. Colloids Surf B Biointerfaces 2014; 114:316-23. [DOI: 10.1016/j.colsurfb.2013.10.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 09/29/2013] [Accepted: 10/02/2013] [Indexed: 11/18/2022]
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49
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Effect of microcavitary alginate hydrogel with different pore sizes on chondrocyte culture for cartilage tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 34:168-75. [DOI: 10.1016/j.msec.2013.09.003] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 07/31/2013] [Accepted: 09/06/2013] [Indexed: 01/28/2023]
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50
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Lau TT, Neo JRE, Wang DA. Hydrogel-mediated formation of living cartilage template for endochondral initiation. POLYM INT 2013. [DOI: 10.1002/pi.4648] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Ting Ting Lau
- Division of Bioengineering, School of Chemical and Biomedical Engineering; Nanyang Technological University; Singapore 637457
| | - Jing Rui Evelyn Neo
- Division of Bioengineering, School of Chemical and Biomedical Engineering; Nanyang Technological University; Singapore 637457
| | - Dong-An Wang
- Division of Bioengineering, School of Chemical and Biomedical Engineering; Nanyang Technological University; Singapore 637457
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