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Fu TS, Chen WC, Wang YC, Chang CW, Lin TY, Wong CB. Biomimetic vascularized adipose-derived mesenchymal stem cells bone-periosteum graft enhances angiogenesis and osteogenesis in a male rabbit spine fusion model. Bone Joint Res 2023; 12:722-733. [PMID: 38052231 DOI: 10.1302/2046-3758.1212.bjr-2023-0013.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/07/2023] Open
Abstract
Aims Several artificial bone grafts have been developed but fail to achieve anticipated osteogenesis due to their insufficient neovascularization capacity and periosteum support. This study aimed to develop a vascularized bone-periosteum construct (VBPC) to provide better angiogenesis and osteogenesis for bone regeneration. Methods A total of 24 male New Zealand white rabbits were divided into four groups according to the experimental materials. Allogenic adipose-derived mesenchymal stem cells (AMSCs) were cultured and seeded evenly in the collagen/chitosan sheet to form cell sheet as periosteum. Simultaneously, allogenic AMSCs were seeded onto alginate beads and were cultured to differentiate to endothelial-like cells to form vascularized bone construct (VBC). The cell sheet was wrapped onto VBC to create a vascularized bone-periosteum construct (VBPC). Four different experimental materials - acellular construct, VBC, non-vascularized bone-periosteum construct, and VBPC - were then implanted in bilateral L4-L5 intertransverse space. At 12 weeks post-surgery, the bone-forming capacities were determined by CT, biomechanical testing, histology, and immunohistochemistry staining analyses. Results At 12 weeks, the VBPC group significantly increased new bone formation volume compared with the other groups. Biomechanical testing demonstrated higher torque strength in the VBPC group. Notably, the haematoxylin and eosin, Masson's trichrome, and immunohistochemistry-stained histological results revealed that VBPC promoted neovascularization and new bone formation in the spine fusion areas. Conclusion The tissue-engineered VBPC showed great capability in promoting angiogenesis and osteogenesis in vivo. It may provide a novel approach to create a superior blood supply and nutritional environment to overcome the deficits of current artificial bone graft substitutes.
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Affiliation(s)
- Tsai-Sheng Fu
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, School of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Wei-Chuan Chen
- Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Taoyuan, Taiwan
| | - Ying-Chih Wang
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, School of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chia-Wei Chang
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, School of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Tung-Yi Lin
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, School of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chak-Bor Wong
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, School of Medicine, Chang Gung University, Taoyuan, Taiwan
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Xin H, Tomaskovic-Crook E, Al Maruf DSA, Cheng K, Wykes J, Manzie TGH, Wise SG, Crook JM, Clark JR. From Free Tissue Transfer to Hydrogels: A Brief Review of the Application of the Periosteum in Bone Regeneration. Gels 2023; 9:768. [PMID: 37754449 PMCID: PMC10530949 DOI: 10.3390/gels9090768] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 09/28/2023] Open
Abstract
The periosteum is a thin layer of connective tissue covering bone. It is an essential component for bone development and fracture healing. There has been considerable research exploring the application of the periosteum in bone regeneration since the 19th century. An increasing number of studies are focusing on periosteal progenitor cells found within the periosteum and the use of hydrogels as scaffold materials for periosteum engineering and guided bone development. Here, we provide an overview of the research investigating the use of the periosteum for bone repair, with consideration given to the anatomy and function of the periosteum, the importance of the cambium layer, the culture of periosteal progenitor cells, periosteum-induced ossification, periosteal perfusion, periosteum engineering, scaffold vascularization, and hydrogel-based synthetic periostea.
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Affiliation(s)
- Hai Xin
- Integrated Prosthetics and Reconstruction, Department of Head and Neck Surgery, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (D.S.A.A.M.); (K.C.); (J.W.); (T.G.H.M.); (J.R.C.)
- Central Clinical School, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia
| | - Eva Tomaskovic-Crook
- Arto Hardy Family Biomedical Innovation Hub, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (E.T.-C.); (J.M.C.)
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2006, Australia;
- Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong, North Wollongong, NSW 2500, Australia
| | - D S Abdullah Al Maruf
- Integrated Prosthetics and Reconstruction, Department of Head and Neck Surgery, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (D.S.A.A.M.); (K.C.); (J.W.); (T.G.H.M.); (J.R.C.)
- Central Clinical School, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia
| | - Kai Cheng
- Integrated Prosthetics and Reconstruction, Department of Head and Neck Surgery, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (D.S.A.A.M.); (K.C.); (J.W.); (T.G.H.M.); (J.R.C.)
- Royal Prince Alfred Institute of Academic Surgery, Royal Prince Alfred Hospital, Sydney Local Health District, Camperdown, NSW 2050, Australia
| | - James Wykes
- Integrated Prosthetics and Reconstruction, Department of Head and Neck Surgery, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (D.S.A.A.M.); (K.C.); (J.W.); (T.G.H.M.); (J.R.C.)
- Central Clinical School, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia
| | - Timothy G. H. Manzie
- Integrated Prosthetics and Reconstruction, Department of Head and Neck Surgery, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (D.S.A.A.M.); (K.C.); (J.W.); (T.G.H.M.); (J.R.C.)
| | - Steven G. Wise
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2006, Australia;
| | - Jeremy M. Crook
- Arto Hardy Family Biomedical Innovation Hub, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (E.T.-C.); (J.M.C.)
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2006, Australia;
- Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong, North Wollongong, NSW 2500, Australia
| | - Jonathan R. Clark
- Integrated Prosthetics and Reconstruction, Department of Head and Neck Surgery, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (D.S.A.A.M.); (K.C.); (J.W.); (T.G.H.M.); (J.R.C.)
- Central Clinical School, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia
- Royal Prince Alfred Institute of Academic Surgery, Royal Prince Alfred Hospital, Sydney Local Health District, Camperdown, NSW 2050, Australia
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3
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Gu L, Huang R, Ni N, Gu P, Fan X. Advances and Prospects in Materials for Craniofacial Bone Reconstruction. ACS Biomater Sci Eng 2023; 9:4462-4496. [PMID: 37470754 DOI: 10.1021/acsbiomaterials.3c00399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
The craniofacial region is composed of 23 bones, which provide crucial function in keeping the normal position of brain and eyeballs, aesthetics of the craniofacial complex, facial movements, and visual function. Given the complex geometry and architecture, craniofacial bone defects not only affect the normal craniofacial structure but also may result in severe craniofacial dysfunction. Therefore, the exploration of rapid, precise, and effective reconstruction of craniofacial bone defects is urgent. Recently, developments in advanced bone tissue engineering bring new hope for the ideal reconstruction of the craniofacial bone defects. This report, presenting a first-time comprehensive review of recent advances of biomaterials in craniofacial bone tissue engineering, overviews the modification of traditional biomaterials and development of advanced biomaterials applying to craniofacial reconstruction. Challenges and perspectives of biomaterial development in craniofacial fields are discussed in the end.
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Affiliation(s)
- Li Gu
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Rui Huang
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Ni Ni
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Ping Gu
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Xianqun Fan
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
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4
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Chen R, Long S, Ren L, Xu S, Liu X, Shi J, Liu J, Ma D, Zhou P, Ren L. The Role of Macrophage Phenotype in the Vascularization of Prevascularized Human Bone Marrow Mesenchymal Stem Cell Sheets. Stem Cells Dev 2023; 32:504-514. [PMID: 37119121 DOI: 10.1089/scd.2022.0268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023] Open
Abstract
With the development of tissue engineering and regenerative medicine, prevascularized bone marrow mesenchymal stem cell (BMSC) sheets have been regarded as a promising method for tissue regeneration. Furthermore, the inflammatory response is one of the main regulators of vascularization and the restoration of engineered tissue function; among them, macrophages and cytokines produced by them are considered to be the decisive factors of the downstream outcomes. This study investigated the effect of macrophages on the formation of microvascular-like structures of human umbilical vein endothelial cells (HUVECs) in BMSC sheets. First, a human monocytic leukemia cell line (THP-1 cells) was differentiated into derived macrophages (M0) with phorbol 12-myristate 13-acetate and further activated into proinflammatory macrophages (M1 macrophages) with interferon-γ and lipopolysaccharide or anti-inflammatory macrophages (M2 macrophages) with interleukin-4. Then, HUVECs and prevascularized sheets were treated with conditioned media (CM) from different macrophages, and the impact of macrophage phenotypes on vascularized network formation in prevascularized cell sheets was examined by hematoxylin and eosin staining, CD31 immunofluorescence staining and enzyme-linked immunosorbent assay. Our study showed that macrophages may guide the arrangement of endothelial cells through a paracrine pathway. Cell sheets that were cultured in the CM from M2 macrophages were thinner than those cultured in other media. At various time points, the levels of tumor necrosis factor alpha and vascular endothelial growth factor in prevascularized sheets cultured with CM(M1) was higher than that in sheets cultured with other media; however, the levels of platelet-derived growth factor in prevascularized sheets cultured with CM(M2) was higher than that in sheets cultured with other media. These findings suggest that the paracrine effect of macrophages can influence the formation of microvascular networks in prevascularized sheets by regulating the arrangement of cells, the thickness of the cell sheet and the secretion of cytokines related to angiogenesis. Macrophages with different phenotypes have unique effects on prevascularized sheets.
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Affiliation(s)
- Rui Chen
- Department of Orthodontics, School and Hospital of Stomatology, Lanzhou University, Lanzhou, PR China
| | - Siqi Long
- Department of Orthodontics, School and Hospital of Stomatology, Lanzhou University, Lanzhou, PR China
- Department of Orthodontics, West China School of Stomatology, Sichuan University, Chengdu, PR China
| | - Lina Ren
- Department of Orthodontics, School and Hospital of Stomatology, Lanzhou University, Lanzhou, PR China
| | - Sen Xu
- Department of Orthodontics, School and Hospital of Stomatology, Lanzhou University, Lanzhou, PR China
| | - Xiaoning Liu
- Department of Orthodontics, School and Hospital of Stomatology, Lanzhou University, Lanzhou, PR China
| | - Jiamin Shi
- College of Life Sciences, Lanzhou University, Lanzhou, PR China
| | - Jiaxin Liu
- Department of Orthodontics, School and Hospital of Stomatology, Lanzhou University, Lanzhou, PR China
| | - Dongyang Ma
- Department of Oral and Maxillofacial Surgery, The 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou, PR China
| | - Ping Zhou
- Department of Orthodontics, School and Hospital of Stomatology, Lanzhou University, Lanzhou, PR China
| | - Liling Ren
- Department of Orthodontics, School and Hospital of Stomatology, Lanzhou University, Lanzhou, PR China
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Banimohamad-Shotorbani B, Karkan SF, Rahbarghazi R, Mehdipour A, Jarolmasjed S, Saghati S, Shafaei H. Application of mesenchymal stem cell sheet for regeneration of craniomaxillofacial bone defects. Stem Cell Res Ther 2023; 14:68. [PMID: 37024981 PMCID: PMC10080954 DOI: 10.1186/s13287-023-03309-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 03/28/2023] [Indexed: 04/08/2023] Open
Abstract
Bone defects are among the most common damages in human medicine. Due to limitations and challenges in the area of bone healing, the research field has turned into a hot topic discipline with direct clinical outcomes. Among several available modalities, scaffold-free cell sheet technology has opened novel avenues to yield efficient osteogenesis. It is suggested that the intact matrix secreted from cells can provide a unique microenvironment for the acceleration of osteoangiogenesis. To the best of our knowledge, cell sheet technology (CST) has been investigated in terms of several skeletal defects with promising outcomes. Here, we highlighted some recent advances associated with the application of CST for the recovery of craniomaxillofacial (CMF) in various preclinical settings. The regenerative properties of both single-layer and multilayer CST were assessed regarding fabrication methods and applications. It has been indicated that different forms of cell sheets are available for CMF engineering like those used for other hard tissues. By tackling current challenges, CST is touted as an effective and alternative therapeutic option for CMF bone regeneration.
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Affiliation(s)
- Behnaz Banimohamad-Shotorbani
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sonia Fathi Karkan
- Department of Advanced Sciences and Technologies in Medicine, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Ahmad Mehdipour
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyedhosein Jarolmasjed
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Sepideh Saghati
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hajar Shafaei
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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6
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Agarwal A. Nonvascularized fibular harvest in children: impact on donor limbs. J Pediatr Orthop B 2023; 32:197-205. [PMID: 35412489 DOI: 10.1097/bpb.0000000000000977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Nonvascularized fibular graft is commonly used in children. We investigated periosteal intactness, proportion of harvested fibula and the distal remnant for their association to regeneration and development of ankle valgus in 25 donor limbs (n = 18 patients). The fibulae were harvested from healthy legs with all possible care to preserve periosteum. Intraoperatively, periosteal breach and length of graft obtained were recorded. Follow-up radiographs at 6 months documented lateral distal tibial angle, fibular station, and longitudinal continuous regeneration of fibula in the donor limb. Limbs with and without regeneration/ankle valgus were matched for proportion of harvested length and distal remnant, respectively. Odds ratios for periosteum breach versus nonregeneration and nonregeneration versus ankle valgus were additionally calculated. The average harvest length and distal remnant were 15.1 and 4.5 cm, respectively. The periosteum intactness was maintained in 18 (72%) limbs. At 6 months follow-up, regeneration of fibula was present in 15 (60%) limbs. The postharvest-acquired ankle valgus was present in five limbs (24%). There was almost 2.5 times increased likelihood of nonregeneration, if periosteum was breached. The odds ratio for nonregeneration versus regeneration to the development of ankle valgus stood at 12 ( P = 0.0483). Periosteal breach increased the odds of nonregeneration of harvested fibula. The length of harvested segment did not appear to have significant influence on regeneration nor did distal segment on ankle valgus. The nonregeneration of fibula, however, made the limb prone to ankle valgus.
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Affiliation(s)
- Anil Agarwal
- Department of Paediatric Orthopaedics, Chacha Nehru Bal Chikitsalaya, Delhi, India
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7
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Xiao F, Shi J, Zhang X, Hu M, Chen K, Shen C, Chen X, Guo Y, Li Y. Gadolinium-doped whitlockite/chitosan composite scaffolds with osteogenic activity for bone defect treatment: In vitro and in vivo evaluations. Front Bioeng Biotechnol 2023; 11:1071692. [PMID: 36873374 PMCID: PMC9975562 DOI: 10.3389/fbioe.2023.1071692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 02/06/2023] [Indexed: 02/17/2023] Open
Abstract
Reducing the incidence of bone defects caused by trauma and other primary diseases is an urgent task in modern society. In the present study, we developed a gadolinium-doped whitlockite/chitosan (Gd-WH/CS) scaffold and assessed its biocompatibility, osteoinductivity, and bone regeneration capacity for the treatment of calvarial defect in a Sprague-Dawley (SD) rat model. The Gd-WH/CS scaffolds possessed a macroporous structure, with a pore size ranging 200-300 μm, which facilitated the growth of bone precursor cells and tissues into scaffold. Results of cytological and histological biosafety experiments showed that both WH/CS and Gd-WH/CS scaffolds were non-cytotoxic to human adipose-derived stromal cells (hADSCs) and bone tissue, which demonstrated the excellent biocompatibility of Gd-WH/CS scaffolds. Results of western blotting and real-time PCR analysis provided a possible mechanism that Gd3+ ions in the Gd-WH/CS scaffolds promoted the osteogenic differentiation of hADSCs through the GSK3β/β-catenin signaling pathway and significantly upregulated the expression of osteogenic related genes (OCN, OSX and COL1A1). Finally, in animal experiments, SD rat cranial defects were effectively treated and repaired with Gd-WH/CS scaffolds due to its appropriate degradation rate and excellent osteogenic activity. This study suggests the potential utility of the Gd-WH/CS composite scaffolds in treating bone defect disease.
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Affiliation(s)
- Fei Xiao
- Department of Orthopedic Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Jingjing Shi
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, China
| | - Xinhai Zhang
- Department of Orthopedic Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Min Hu
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, China
| | - Kangming Chen
- Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China
| | - Chao Shen
- Department of Orthopedic Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Xiaodong Chen
- Department of Orthopedic Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Yaping Guo
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, China
| | - Yang Li
- Department of Orthopedic Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University, School of Medicine, Shanghai, China
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8
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You Q, Lu M, Li Z, Zhou Y, Tu C. Cell Sheet Technology as an Engineering-Based Approach to Bone Regeneration. Int J Nanomedicine 2022; 17:6491-6511. [PMID: 36573205 PMCID: PMC9789707 DOI: 10.2147/ijn.s382115] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 11/12/2022] [Indexed: 12/24/2022] Open
Abstract
Bone defects that are congenital or the result of infection, malignancy, or trauma represent a challenge to the global healthcare system. To address this issue, multiple research groups have been developing novel cell sheet technology (CST)-based approaches to promote bone regeneration. These methods hold promise for use in regenerative medicine because they preserve cell-cell contacts, cell-extracellular matrix interactions, and the protein makeup of cell membranes. This review introduces the concept and preparation system of the cell sheet (CS), explores the application of CST in bone regeneration, highlights the current states of the bone regeneration via CST, and offers perspectives on the challenges and future research direction of translating current knowledge from the lab to the clinic.
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Affiliation(s)
- Qi You
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China,Sichuan Model Worker and Craftsman Talent Innovation Research Studio, Chengdu, Sichuan Province, People’s Republic of China
| | - Minxun Lu
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China,Sichuan Model Worker and Craftsman Talent Innovation Research Studio, Chengdu, Sichuan Province, People’s Republic of China
| | - Zhuangzhuang Li
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China,Sichuan Model Worker and Craftsman Talent Innovation Research Studio, Chengdu, Sichuan Province, People’s Republic of China
| | - Yong Zhou
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China,Sichuan Model Worker and Craftsman Talent Innovation Research Studio, Chengdu, Sichuan Province, People’s Republic of China
| | - Chongqi Tu
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China,Sichuan Model Worker and Craftsman Talent Innovation Research Studio, Chengdu, Sichuan Province, People’s Republic of China,Correspondence: Chongqi Tu; Yong Zhou, Department of Orthopedics, West China Hospital, Sichuan University, No. 37, Guoxuexiang, Chengdu, 610041, Sichuan Province, People’s Republic of China, Email ;
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9
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Xu J, Shen J, Sun Y, Wu T, Sun Y, Chai Y, Kang Q, Rui B, Li G. In vivo prevascularization strategy enhances neovascularization of β-tricalcium phosphate scaffolds in bone regeneration. J Orthop Translat 2022; 37:143-151. [PMID: 36313532 PMCID: PMC9582585 DOI: 10.1016/j.jot.2022.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 08/12/2022] [Accepted: 09/01/2022] [Indexed: 12/01/2022] Open
Abstract
Background Neovascularization is critical for bone regeneration. Numerous studies have explored prevascularization preimplant strategies, ranging from calcium phosphate cement (CPC) scaffolds to co-culturing CPCs with stem cells. The aim of the present study was to evaluate an alternative in vivo prevascularization approach, using preimplant-prepared macroporous beta-tricalcium phosphate (β-TCP) scaffolds and subsequent transplantation in bone defect model. Methods The morphology of β-TCPs was characterized by scanning electron microscopy. After 3 weeks of prevascularization within a muscle pouch at the lateral size of rat tibia, we transplanted prevascularized macroporous β-TCPs in segmental tibia defects, using blank β-TCPs as a control. Extent of neovascularization was determined by angiography and immunohistochemical (IHC) evaluations. Tibia samples were collected at different time points for biomechanical, radiological, and histological analyses. RT-PCR and western blotting were used to evaluate angio- and osteo-specific markers. Results With macroporous β-TCPs, we documented more vascular and supporting tissue invasion in the macroporous β-TCPs with prior in vivo prevascularization. Radiography, biomechanical, IHC, and histological analyses revealed considerably more vascularity and bone consolidation in β-TCP scaffolds that had undergone the prevascularization step compared to the blank β-TCP scaffolds. Moreover, the prevascularization treatment remarkably upregulated mRNA and protein expression of BMP2 and vascular endothelial growth factor (VEGF) during bone regeneration. Conclusion This novel in vivo prevascularization strategy successfully accelerated vascular formation to bone regeneration. Our findings indicate that prevascularized tissue-engineered bone grafts have promising potential in clinical applications. The translational potential of this article This study indicates a novel in vivo prevascularization strategy for growing vasculature on β-TCP scaffolds to be used for repair of large segmental bone defects, might serve as a promising tissue-engineered bone grafts in the future.
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Affiliation(s)
- Jia Xu
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Junjie Shen
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - YunChu Sun
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Tianyi Wu
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Yuxin Sun
- Department of Orthopaedics and Traumatology, Bao-An District People's Hospital, Shenzhen, PR China
| | - Yimin Chai
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Qinglin Kang
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Biyu Rui
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
- Corresponding author. Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, PR China.
| | - Gang Li
- Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, PR China
- Corresponding author.
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10
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Zhang J, Huang Y, Wang Y, Xu J, Huang T, Luo X. Construction of biomimetic cell-sheet-engineered periosteum with a double cell sheet to repair calvarial defects of rats. J Orthop Translat 2022; 38:1-11. [PMID: 36313975 PMCID: PMC9582589 DOI: 10.1016/j.jot.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 08/31/2022] [Accepted: 09/09/2022] [Indexed: 11/06/2022] Open
Abstract
Background The periosteum plays a crucial role in the development and injury healing process of bone. The purpose of this study was to construct a biomimetic periosteum with a double cell sheet for bone tissue regeneration. Methods In vitro, the human amniotic mesenchymal stem cells (hAMSCs) sheet was first fabricated by adding 50 μg/ml ascorbic acid to the cell sheet induction medium. Characterization of the hAMSCs sheet was tested by general observation, microscopic observation, live/dead staining, scanning electron microscopy (SEM) and hematoxylin and eosin (HE) staining. Afterwards, the osteogenic cell sheet and vascular cell sheet were constructed and evaluated by general observation, alkaline phosphatase (ALP) staining, Alizarin Red S staining, SEM, live/dead staining and CD31 immunofluorescent staining for characterization. Then, we prepared the double cell sheet. In vivo, rat calvarial defect model was introduced to verify the regeneration of bone defects treated by different methods. Calvarial defects (diameter: 4 mm) were created of Sprague–Dawley rats. The rats were randomly divided into 4 groups: the control group, the osteogenic cell sheet group, the vascular cell sheet group and the double cell sheet group. Macroscopic, micro-CT and histological evaluations of the regenerated bone were performed to assess the treatment results at 8 weeks and 12 weeks after surgery. Results In vitro, hAMSCs sheet was successfully prepared. The hAMSCs sheet consisted of a large number of live hAMSCs and abundant extracellular matrix (ECM) that secreted by hAMSCs, as evidenced by macroscopic/microscopic observation, live/dead staining, SEM and HE staining. Besides, the osteogenic cell sheet and the vascular cell sheet were successfully prepared, which were verified by general observation, ALP staining, Alizarin Red S staining, SEM and CD31 immunofluorescent staining. In vivo, the macroscopic observation and micro-CT results both demonstrated that the double cell sheet group had better effect on bone regeneration than other groups. In addition, histological assessments indicated that large amounts of new bone had formed in the calvarial defects and more mature collagen in the double cell sheet group. Conclusion The double cell sheet could promote to repair calvarial defects of rats and accelerate bone regeneration. The translational potential of this article We successfully constructed a biomimetic cell-sheet-engineered periosteum with a double cell sheet by a simple, low-cost and effective method. This biomimetic periosteum may be a promising therapeutic strategy for the treatment of bone defects, which may be used in clinic in the future.
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Key Words
- Biomimetic periosteum
- Bone regeneration
- Double cell sheet
- Osteogenic cell sheet
- Trabecular number, Tb.N
- Trabecular thickness, Tb.Th
- Vascular cell sheet
- adiposetissue derivedstromalcells, ADSCs
- alkaline phosphatase, ALP
- bone mineral density, BMD
- bonemarrowmesenchymlstemcells, BMSCs
- bonevolume fraction, BV/TV
- cell sheet technology, CST
- cytokeratin 19, CK-19
- extracellular matrix, ECM
- hAMSCs sheet
- hematoxylin and eosin, HE
- human amniotic mesenchymal stem cells, hAMSCs
- human ethmoid sinus mucosa derived mesenchymal stem cells, hESMSCs
- periodontal ligament-derived cells, PDLCs
- polylactic-co-glycolic acid, PLGA
- scanning electron microscopy, SEM
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11
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Yang Z, Yang Z, Ding L, Zhang P, Liu C, Chen D, Zhao F, Wang G, Chen X. Self-Adhesive Hydrogel Biomimetic Periosteum to Promote Critical-Size Bone Defect Repair via Synergistic Osteogenesis and Angiogenesis. ACS APPLIED MATERIALS & INTERFACES 2022; 14:36395-36410. [PMID: 35925784 DOI: 10.1021/acsami.2c08400] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The periosteum plays an important role in the regeneration of critical-size bone defects, with functions of recruiting multiple cells, accelerating vascular network reconstruction, and guiding bone tissue regeneration. However, these functions cannot be easily implemented by simply simulating the periosteum via a material structure design or by loading exogenous cytokines. Herein, inspired by the periosteal function, we propose a biomimetic periosteum preparation strategy to enhance natural polymer hydrogel membranes using inorganic bioactive materials. The biomimetic periosteum having bone tissue self-adhesive functions and resembling an extracellular matrix was prepared using dopamine-modified gelatin and oxidized hyaluronan (GA/HA), and micro/nanobioactive glass (MNBG) was further incorporated into the hydrogel to fabricate an organic/inorganic co-crosslinked hydrogel membrane (GA/HA-BG). The addition of MNBG enhanced the stability of the natural polymer hydrogel membrane, resulting in a sustained degradation time, biomineralization, and long-term release of ions. The Ca2+ and SiO44- ions released by bioactive glass were shown to recruit cells and promote the differentiation of bone marrow stromal cells into osteoblasts, initiating multicentric osteogenic behavior. Additionally, the bioactive ions were able to continuously stimulate the endogenous expression of vascular endothelial growth factor from human umbilical vein endothelial cells through the PI3K/Akt/HIF-1α pathway, which accelerated vascularization of the defect area and synergistically promoted the repair of bone defects. This organic-inorganic biomimetic periosteum has been proved to be effective and versatile in critical-size bone defect repair and is expected to provide a promising strategy for solving clinical issues.
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Affiliation(s)
- Zhen Yang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, 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
| | - Zhengyu Yang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, 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
| | - Lin Ding
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, 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
| | - Peng Zhang
- Zunyi Medical University Zhuhai Campus, Zhuhai, Guangdong 519040, China
| | - Cong Liu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, 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
| | - Dafu Chen
- Laboratory of Bone Tissue Engineering, Beijing Laboratory of Biomedical Materials, Beijing Research Institute of Orthopaedics and Traumatology, Beijing JiShuiTan Hospital, Beijing 100035, China
| | - Fujian Zhao
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Gang Wang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, 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
| | - Xiaofeng Chen
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, 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
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12
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Xia B, Chen G. Research progress of natural tissue-derived hydrogels for tissue repair and reconstruction. Int J Biol Macromol 2022; 214:480-491. [PMID: 35753517 DOI: 10.1016/j.ijbiomac.2022.06.137] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/05/2022] [Accepted: 06/20/2022] [Indexed: 12/26/2022]
Abstract
There are many different grafts to repair damaged tissue. Various types of biological scaffolds, including films, fibers, microspheres, and hydrogels, can be used for tissue repair. A hydrogel, which is composed a natural or synthetic polymer network with high water absorption capacity, can provide a microenvironment closely resembling the extracellular matrix (ECM) of natural tissues to stimulate cell adhesion, proliferation, and differentiation. It has been shown to have great application potential in the field of tissue repair and regeneration. Hydrogels derived from natural tissues retain a variety of proteins and growth factors in optimal proportions, which is beneficial for the regeneration of specific tissues. This article reviews the latest research advances in the field of hydrogels from a variety of natural tissue sources, including bone tissue, blood vessels, nerve tissue, adipose tissue, skin tissue, and muscle tissue, including preparation methods, advantages, and applications in tissue engineering and regenerative medicine. Finally, it summarizes and discusses the challenges faced by natural tissue-derived hydrogels used in tissue repair, as well as future research and application directions.
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Affiliation(s)
- Bin Xia
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, PR China
| | - Guobao Chen
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, PR China; Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, PR China.
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13
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Li Y, Fraser D, Mereness J, Van Hove A, Basu S, Newman M, Benoit DSW. Tissue Engineered Neurovascularization Strategies for Craniofacial Tissue Regeneration. ACS APPLIED BIO MATERIALS 2022; 5:20-39. [PMID: 35014834 PMCID: PMC9016342 DOI: 10.1021/acsabm.1c00979] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Craniofacial tissue injuries, diseases, and defects, including those within bone, dental, and periodontal tissues and salivary glands, impact an estimated 1 billion patients globally. Craniofacial tissue dysfunction significantly reduces quality of life, and successful repair of damaged tissues remains a significant challenge. Blood vessels and nerves are colocalized within craniofacial tissues and act synergistically during tissue regeneration. Therefore, the success of craniofacial regenerative approaches is predicated on successful recruitment, regeneration, or integration of both vascularization and innervation. Tissue engineering strategies have been widely used to encourage vascularization and, more recently, to improve innervation through host tissue recruitment or prevascularization/innervation of engineered tissues. However, current scaffold designs and cell or growth factor delivery approaches often fail to synergistically coordinate both vascularization and innervation to orchestrate successful tissue regeneration. Additionally, tissue engineering approaches are typically investigated separately for vascularization and innervation. Since both tissues act in concert to improve craniofacial tissue regeneration outcomes, a revised approach for development of engineered materials is required. This review aims to provide an overview of neurovascularization in craniofacial tissues and strategies to target either process thus far. Finally, key design principles are described for engineering approaches that will support both vascularization and innervation for successful craniofacial tissue regeneration.
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Affiliation(s)
- Yiming Li
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - David Fraser
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, New York 14620, United States.,Translational Biomedical Sciences Program, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Jared Mereness
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Amy Van Hove
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Sayantani Basu
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Maureen Newman
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Danielle S W Benoit
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, New York 14620, United States.,Translational Biomedical Sciences Program, University of Rochester Medical Center, Rochester, New York 14642, United States.,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 14642, United States.,Materials Science Program, University of Rochester, Rochester, New York 14627, United States.,Department of Chemical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Biomedical Genetics and Center for Oral Biology, University of Rochester Medical Center, Rochester, New York 14642, United States
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14
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Xia H, Dong L, Hao M, Wei Y, Duan J, Chen X, Yu L, Li H, Sang Y, Liu H. Osteogenic Property Regulation of Stem Cells by a Hydroxyapatite 3D-Hybrid Scaffold With Cancellous Bone Structure. Front Chem 2021; 9:798299. [PMID: 34869241 PMCID: PMC8640089 DOI: 10.3389/fchem.2021.798299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 11/02/2021] [Indexed: 01/07/2023] Open
Abstract
Cancellous bone plays an indispensable role in the skeletal system due to its various functions and high porosity. In this work, chitosan and hydroxyapatite nanowires (CS@HAP NWs) hybrid nanostructured scaffolds with suitable mechanical properties, high porosity and a fine porous structure were prepared to simulate the 3-dimensional structure of cancellous bone. The 3D-hybrid scaffolds promote cell adhesion and the migration of human adipose-derived stem cells (hADSCs) inside the scaffolds. The cavities in the scaffolds provide space for the hADSCs proliferation and differentiation. Moreover, the various contents of HAP and the induced mechanical property changes regulate the differentiation of hADSCs toward osteoblasts. Overall, cellular fate regulation of hADSCs via rationally engineered HAP-based hybrid scaffolds is a facile and effective approach for bone tissue engineering.
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Affiliation(s)
- He Xia
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, China
| | - Lun Dong
- Department of Breast Surgery, Qilu Hospital, Shandong University, Jinan, China
| | - Min Hao
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, China
| | - Yuan Wei
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, Jinan, China
| | - Jiazhi Duan
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, China
| | - Xin Chen
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, China
| | - Liyang Yu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, China
| | - Haijun Li
- Key Laboratory of Cardiovascular Proteomics of Shandong Province, Department of Geriatric Medicine, Qilu Hospital, Shandong University, Jinan, China
| | - Yuanhua Sang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, China
| | - Hong Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, China
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15
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Mimicked Periosteum Layer Based on Deposited Particle Silk Fibroin Membrane for Osteogenesis and Guided Bone Regeneration in Alveolar Cleft Surgery: Formation and in Vitro Testing. Organogenesis 2021; 17:100-116. [PMID: 34719332 DOI: 10.1080/15476278.2021.1991743] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
An alveolar cleft is a critical tissue defect often treated with surgery. In this research, the mimicked periosteum layer based on deposited silk fibroin membrane was fabricated for guided bone regeneration in alveolar cleft surgery. The deposited silk fibroin particle membranes were fabricated by spray-drying with different concentrations of silk fibroin (v/v): 0.5% silk fibroin (0.5% SFM), 1% silk fibroin (1% SFM), 2% silk fibroin (2% SFM), and 1% silk fibroin film (1% SFF) as the control. The membranes were then characterized and the molecular organization, structure, and morphology were observed with FT-IR, DSC, and SEM. Their physical properties, mechanical properties, swelling, and degradation were tested. The membranes were cultured with osteoblast cells and their biological performance, cell viability and proliferation, total protein, ALP activity, and calcium deposition were evaluated. The results demonstrated that the membranes showed molecular transformation of random coils to beta sheets and stable structures. The membranes had a porous layer. Furthermore, they had more stress and strain, swelling, and degradation than the film. They had more unique cell viability and proliferation, total protein, ALP activity, calcium deposition than the film. The results of the study indicated that 1% SFM is promising for guided bone regeneration for alveolar cleft surgery.
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16
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Wang X, Nie Z, Chang J, Lu ML, Kang Y. Multiple channels with interconnected pores in a bioceramic scaffold promote bone tissue formation. Sci Rep 2021; 11:20447. [PMID: 34650074 PMCID: PMC8516977 DOI: 10.1038/s41598-021-00024-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 10/01/2021] [Indexed: 11/13/2022] Open
Abstract
Insufficient nutrition exchange and limited transportation of blood supply in a porous only scaffold often hinder bone formation, even though the porous scaffold is loaded with cells or growth factors. To overcome these issues, we developed a cell- and growth factor-free approach to induce bone formation in a critical-size bone defect by using an interconnected porous beta-tricalcium phosphate (β-TCP) scaffold with multiple channels. In vitro cell experimental results showed that multiple channels significantly promoted cell attachment and proliferation of human bone marrow mesenchymal stem cells, stimulated their alkaline phosphatase activity, and up-regulated the osteogenic gene expression. Multiple channels also considerably stimulated the expression of various mechanosensing markers of the cells, such as focal adhesion kinase, filamentous actin, and Yes-associated protein-1 at both static and dynamic culturing conditions. The in vivo bone defect implantation results demonstrated more bone formation inside multiple-channeled scaffolds compared to non-channeled scaffolds. Multiple channels prominently accelerated collagen type I, bone sialoprotein and osteocalcin protein expression. Fluorochrome images and angiogenic marker CD31 staining exhibited more mineral deposition and longer vasculature structures in multiple-channeled scaffolds, compared to non-channeled scaffolds. All the findings suggested that the creation of interconnected multiple channels in the porous β-TCP scaffold is a very promising approach to promote bone tissue regeneration.
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Affiliation(s)
- Xuesong Wang
- Department of Ocean and Mechanical Engineering, College of Engineering and Computer Science, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Ziyan Nie
- Department of Ocean and Mechanical Engineering, College of Engineering and Computer Science, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Jia Chang
- Department of Periodontology, University of Florida College of Dentistry, Gainesville, FL, 32610, USA
| | - Michael L Lu
- Department of Biomedical Science, College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA.,Department of Biological Science, Faculty of Integrative Biology Program, College of Science, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Yunqing Kang
- Department of Ocean and Mechanical Engineering, College of Engineering and Computer Science, Florida Atlantic University, Boca Raton, FL, 33431, USA. .,Department of Biomedical Science, College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA. .,Department of Biological Science, Faculty of Integrative Biology Program, College of Science, Florida Atlantic University, Boca Raton, FL, 33431, USA.
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17
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Kodama J, Harumningtyas AA, Ito T, Michlíček M, Sugimoto S, Kita H, Chijimatsu R, Ukon Y, Kushioka J, Okada R, Kamatani T, Hashimoto K, Tateiwa D, Tsukazaki H, Nakagawa S, Takenaka S, Makino T, Sakai Y, Nečas D, Zajíčková L, Hamaguchi S, Kaito T. Amine modification of calcium phosphate by low-pressure plasma for bone regeneration. Sci Rep 2021; 11:17870. [PMID: 34504247 PMCID: PMC8429709 DOI: 10.1038/s41598-021-97460-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 08/26/2021] [Indexed: 11/30/2022] Open
Abstract
Regeneration of large bone defects caused by trauma or tumor resection remains one of the biggest challenges in orthopedic surgery. Because of the limited availability of autograft material, the use of artificial bone is prevalent; however, the primary role of currently available artificial bone is restricted to acting as a bone graft extender owing to the lack of osteogenic ability. To explore whether surface modification might enhance artificial bone functionality, in this study we applied low-pressure plasma technology as next-generation surface treatment and processing strategy to chemically (amine) modify the surface of beta-tricalcium phosphate (β-TCP) artificial bone using a CH4/N2/He gas mixture. Plasma-treated β-TCP exhibited significantly enhanced hydrophilicity, facilitating the deep infiltration of cells into interconnected porous β-TCP. Additionally, cell adhesion and osteogenic differentiation on the plasma-treated artificial bone surfaces were also enhanced. Furthermore, in a rat calvarial defect model, the plasma treatment afforded high bone regeneration capacity. Together, these results suggest that amine modification of artificial bone by plasma technology can provide a high osteogenic ability and represents a promising strategy for resolving current clinical limitations regarding the use of artificial bone.
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Affiliation(s)
- Joe Kodama
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Anjar Anggraini Harumningtyas
- Center for Atomic and Molecular Technologies (CAMT), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Center for Accelerator Science and Technology, National Nuclear Energy Agency of Indonesia (BATAN), Jalan Babarsari Kotak Pos 6101 ykbb, Yogyakarta, 55281, Indonesia
| | - Tomoko Ito
- Center for Atomic and Molecular Technologies (CAMT), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Miroslav Michlíček
- Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlarska 2, 61137, Brno, Czech Republic
| | - Satoshi Sugimoto
- Center for Atomic and Molecular Technologies (CAMT), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hidekazu Kita
- Center for Atomic and Molecular Technologies (CAMT), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ryota Chijimatsu
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Bone and Cartilage Regenerative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yuichiro Ukon
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Junichi Kushioka
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Rintaro Okada
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takashi Kamatani
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Kunihiko Hashimoto
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Daisuke Tateiwa
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hiroyuki Tsukazaki
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Shinichi Nakagawa
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Shota Takenaka
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takahiro Makino
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yusuke Sakai
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - David Nečas
- CEITEC - Central European Institute of Technology, Brno University of Technology, Purkynova 123, Brno, 61200, Czech Republic
| | - Lenka Zajíčková
- CEITEC - Central European Institute of Technology, Brno University of Technology, Purkynova 123, Brno, 61200, Czech Republic.,Department of Condensed Matter Physics, Faculty of Science, Masaryk University, Kotlarska 2, Brno, 61137, Czech Republic
| | - Satoshi Hamaguchi
- Center for Atomic and Molecular Technologies (CAMT), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.
| | - Takashi Kaito
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
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18
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Mesenchymal Stem Cells, Bioactive Factors, and Scaffolds in Bone Repair: From Research Perspectives to Clinical Practice. Cells 2021; 10:cells10081925. [PMID: 34440694 PMCID: PMC8392210 DOI: 10.3390/cells10081925] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/24/2021] [Accepted: 07/27/2021] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem cell-based therapies are promising tools for bone tissue regeneration. However, tracking cells and maintaining them in the site of injury is difficult. A potential solution is to seed the cells onto a biocompatible scaffold. Construct development in bone tissue engineering is a complex step-by-step process with many variables to be optimized, such as stem cell source, osteogenic molecular factors, scaffold design, and an appropriate in vivo animal model. In this review, an MSC-based tissue engineering approach for bone repair is reported. Firstly, MSC role in bone formation and regeneration is detailed. Secondly, MSC-based bone tissue biomaterial design is analyzed from a research perspective. Finally, examples of animal preclinical and human clinical trials involving MSCs and scaffolds in bone repair are presented.
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19
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Gupta S, Teotia AK, Qayoom I, Shiekh PA, Andrabi SM, Kumar A. Periosteum-Mimicking Tissue-Engineered Composite for Treating Periosteum Damage in Critical-Sized Bone Defects. Biomacromolecules 2021; 22:3237-3250. [PMID: 34252271 DOI: 10.1021/acs.biomac.1c00319] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The periosteum is an indispensable part of the bone that nourishes the cortical bone and acts as a repertoire of osteoprogenitor cells. Periosteal damage as a result of traumatic injuries, infections, or surgical assistance in bone surgeries is often associated with a high incidence of delayed bone healing (union or nonunion) compounded with severe pain and a risk of a secondary fracture. Developing bioengineered functional periosteal substitutes is an indispensable approach to augment bone healing. In this study, we have developed a biomimetic periosteum membrane consisting of electrospun oxygen-releasing antioxidant polyurethane on collagen membrane (polyurethane-ascorbic acid-calcium peroxide containing fibers on collagen (PUAOCC)). Further, to assist bone formation, we have developed a bioactive inorganic-organic composite cryogel (bioglass-collagen-gelatin-nanohydroxyapatite (BCGH)) as a bone substitute. In an in vitro simulated oxidative stress model, PUAOCC supported the primary periosteal cell survival. Moreover, in an in vivo, critical-sized (5.9 mm × 3.2 mm × 1.50 mm) unicortical rat tibial bone defect, implantation of PUAOCC along with the functionalized BCGH led to significant improvement in bone formation along with periosteal regeneration. The periosteal regeneration was confirmed by expression of periosteum-specific periostin and neuronal regulation-related protein markers. Our study demonstrates the development of a periosteum-mimicking membrane with promising applications to facilitate periosteal regeneration, thus assisting bone formation when used in combination with bone composites and mimicking the natural bone repair process.
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Affiliation(s)
- Sneha Gupta
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Arun Kumar Teotia
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Irfan Qayoom
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Parvaiz Ahmad Shiekh
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Syed Muntazir Andrabi
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Ashok Kumar
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India.,Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India.,The Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India.,Centre for Nanosciences, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
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20
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Pharmaceutical electrospinning and 3D printing scaffold design for bone regeneration. Adv Drug Deliv Rev 2021; 174:504-534. [PMID: 33991588 DOI: 10.1016/j.addr.2021.05.007] [Citation(s) in RCA: 113] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 04/26/2021] [Accepted: 05/11/2021] [Indexed: 12/13/2022]
Abstract
Bone regenerative engineering provides a great platform for bone tissue regeneration covering cells, growth factors and other dynamic forces for fabricating scaffolds. Diversified biomaterials and their fabrication methods have emerged for fabricating patient specific bioactive scaffolds with controlled microstructures for bridging complex bone defects. The goal of this review is to summarize the points of scaffold design as well as applications for bone regeneration based on both electrospinning and 3D bioprinting. It first briefly introduces biological characteristics of bone regeneration and summarizes the applications of different types of material and the considerations for bone regeneration including polymers, ceramics, metals and composites. We then discuss electrospinning nanofibrous scaffold applied for the bone regenerative engineering with various properties, components and structures. Meanwhile, diverse design in the 3D bioprinting scaffolds for osteogenesis especially in the role of drug and bioactive factors delivery are assembled. Finally, we discuss challenges and future prospects in the development of electrospinning and 3D bioprinting for osteogenesis and prominent strategies and directions in future.
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21
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Zhang X, Liu W, Liu J, Hu Y, Dai H. Poly-ε-caprolactone/Whitlockite Electrospun Bionic Membrane with an Osteogenic-Angiogenic Coupling Effect for Periosteal Regeneration. ACS Biomater Sci Eng 2021; 7:3321-3331. [PMID: 34148343 DOI: 10.1021/acsbiomaterials.1c00426] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The periosteum is rich in vascular networks, osteoprogenitor cells, and stem cells and plays an important role in bone defect repair. However, existing artificial periosteum materials still have difficulty in meeting clinical requirements, such as good mechanical properties and bionic structure construction, osteogenic differentiation, and vascularization capabilities. Here, a poly-ε-caprolactone (PCL)/whitlockite (WH, 5, 10, 15 wt %) artificial periosteum with different doping amounts was prepared by electrospinning technology. According to the results of in vitro mineralization experiments, the rapid ion release from WH promotes the deposition of mineralized hydroxyapatite. Inductively coupled plasma-optical emission spectroscopy, in vitro angiogenesis, and cell migration experiments showed that the bionic periosteum of the 15% WH group had the best release rate of Mg2+ and the best ability to promote the human umbilical vein endothelial cell angiogenesis and migration. In addition, this group promoted collagen formation and calcium deposition. Finally, the subcutaneous implantation model was used to verify the biocompatibility and angiogenesis ability of the proposed membrane in vivo. Overall, this biomimetic PCL/WH nanofiber membrane combines the positive osteogenic differentiation ability and angiogenic ability of calcium phosphate materials and thus has good application prospects in the field of periosteal repair in the future.
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Affiliation(s)
- Xiangke Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Wenbin Liu
- Department of Orthopedics, Xiangya Hospital of Central South University, Changsha, Hunan 410008, China.,Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Changsha, Hunan 410008, China
| | - Jiawei Liu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Yihe Hu
- Department of Orthopedics, Xiangya Hospital of Central South University, Changsha, Hunan 410008, China.,Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Changsha, Hunan 410008, China
| | - Honglian Dai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, P. R. China.,Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan 528200, China
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22
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Lou Y, Wang H, Ye G, Li Y, Liu C, Yu M, Ying B. Periosteal Tissue Engineering: Current Developments and Perspectives. Adv Healthc Mater 2021; 10:e2100215. [PMID: 33938636 DOI: 10.1002/adhm.202100215] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/18/2021] [Indexed: 12/22/2022]
Abstract
Periosteum, a highly vascularized bilayer connective tissue membrane plays an indispensable role in the repair and regeneration of bone defects. It is involved in blood supply and delivery of progenitor cells and bioactive molecules in the defect area. However, sources of natural periosteum are limited, therefore, there is a need to develop tissue-engineered periosteum (TEP) mimicking the composition, structure, and function of natural periosteum. This review explores TEP construction strategies from the following perspectives: i) different materials for constructing TEP scaffolds; ii) mechanical properties and surface topography in TEP; iii) cell-based strategies for TEP construction; and iv) TEP combined with growth factors. In addition, current challenges and future perspectives for development of TEP are discussed.
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Affiliation(s)
- Yiting Lou
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
- Department of Stomatology, The Ningbo Hospital of Zhejiang University, and Ningbo First Hospital, 59 Liuting street, Ningbo, Zhejiang, 315000, China
| | - Huiming Wang
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Guanchen Ye
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Yongzheng Li
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Chao Liu
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Mengfei Yu
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Binbin Ying
- Department of Stomatology, The Ningbo Hospital of Zhejiang University, and Ningbo First Hospital, 59 Liuting street, Ningbo, Zhejiang, 315000, China
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Toyota A, Shinagawa R, Mano M, Tokioka K, Suda N. Regeneration in Experimental Alveolar Bone Defect Using Human Umbilical Cord Mesenchymal Stem Cells. Cell Transplant 2021; 30:963689720975391. [PMID: 33573392 PMCID: PMC7883160 DOI: 10.1177/0963689720975391] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Cleft lip and palate is a congenital disorder including cleft lip, and/or cleft palate, and/or alveolar cleft, with high incidence.The alveolar cleft causes morphological and functional abnormalities. To obtain bone bridge formation and continuous structure between alveolar clefts, surgical interventions are performed from infancy to childhood. However, desirable bone bridge formation is not obtained in many cases. Regenerative medicine using mesenchymal stem cells (MSCs) is expected to be a useful strategy to obtain sufficient bone bridge formation between alveolar clefts. In this study, we examined the effect of human umbilical cord-derived MSCs by transplantation into a rat experimental alveolar cleft model. Human umbilical cords were digested enzymatically and the isolated cells were collected (UC-EZ cells). Next, CD146-positive cells were enriched from UC-EZ cells by magnetic-activated cell sorting (UC-MACS cells). UC-EZ and UC-MACS cells showed MSC gene/protein expression, in vitro. Both cells had multipotency and could differentiate to osteogenic, chondrogenic, and adipogenic lineages under the differentiation-inducing media. However, UC-EZ cells lacked Sox2 expression and showed the lower ratio of MSCs than UC-MACS cells. Thus, UC-MACS cells were transplanted with hydroxyapatite and collagen (HA + Col) into alveolar cleft model to evaluate bone formation in vivo. The results of micro computed tomography and histological staining showed that UC-MACS cells with HA + Col induced more abundant bone formation between the experimental alveolar clefts than HA + Col implantation only. Cells immunopositive for osteopontin were accumulated along the bone surface and some of them were embedded in the bone. Cells immunopositive for human-specific mitochondria were aligned along the newly formed bone surface and in the new bone, suggesting that UC-MACS cells contributed to the bone bridge formation between alveolar clefts. These findings indicate that human umbilical cords are reliable bioresource and UC-MACS cells are useful for the alveolar cleft regeneration.
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Affiliation(s)
- Akiko Toyota
- Division of Orthodontics, Department of Human Development and Fostering, Meikai University School of Dentistry, Saitama, Japan
| | - Rei Shinagawa
- Division of Orthodontics, Department of Human Development and Fostering, Meikai University School of Dentistry, Saitama, Japan
| | - Mikiko Mano
- Division of Orthodontics, Department of Human Development and Fostering, Meikai University School of Dentistry, Saitama, Japan
| | - Kazuyuki Tokioka
- Department of Plastic and Reconstructive Surgery, Saitama Medical University, Saitama, Japan
| | - Naoto Suda
- Division of Orthodontics, Department of Human Development and Fostering, Meikai University School of Dentistry, Saitama, Japan
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Jujur IN, Damisih, Devy K, Suha S, Bachtiar BM, Bachtiar EW. Effect of Implantation Ti-6Al-4V ELI in femoral bone defect regeneration of Sprague Dawley rat. J Adv Pharm Technol Res 2021; 11:202-206. [PMID: 33425705 PMCID: PMC7784942 DOI: 10.4103/japtr.japtr_74_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/28/2020] [Accepted: 07/30/2020] [Indexed: 11/23/2022] Open
Abstract
Ti-6Al-4V ELI is one of the most commonly used dental implant restore function. The solution treatment temperature variation can significantly increase the strength, but it is not yet known the effect of these temperature variations on the alloy's biocompatibility properties. Twelve female Sprague Dawley rats were divided into six groups as follows: the treated group, the control group, and the defect group without implant material. In the treated group, the femur bone defect was implanted with as-cast Ti-6Al-4V ELI, 850°C, 950°C, and 1050°C heat-treated Ti-6Al-4V ELI implant material. The rats were euthanized after 30 days postimplantation and evaluated histologically. The results show that the histological scoring of the specimen for femur defect without implant material is 2 (fibrous union and fibrocartilaginous), score with implant as-cast is 2.5, the sample with 850°C heat treatment material is 2.5, 950°C is 2.5, and the temperature at 1050°C is 2.5. The score of 2.5 is between score 2 and score 3: hemorrhage, fibrous union, fibrocartilaginous microhemorrhage, and mineralized cartilage union. In conclusion, there is no effect of different heat treatment temperatures for Ti-6Al-4V ELI implant material in rat bone regeneration's maturation level.
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Affiliation(s)
- I Nyoman Jujur
- Center for Materials Technology, Agency for the Assessment and Application of Technology (BPPT), Tangerang Selatan, Indonesia
| | - Damisih
- Center for Materials Technology, Agency for the Assessment and Application of Technology (BPPT), Tangerang Selatan, Indonesia
| | - Kartika Devy
- Departement of Oral Biology, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
| | - Shovy Suha
- Departement of Oral Biology, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
| | - Boy Muchlis Bachtiar
- Department of Oral Biology, Faculty of Dentistry, Oral Science Research Center, Universitas Indonesia, Jakarta, Indonesia
| | - Endang Winiati Bachtiar
- Department of Oral Biology, Faculty of Dentistry, Oral Science Research Center, Universitas Indonesia, Jakarta, Indonesia
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25
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Impact of scaffold granule size use in Masquelet technique on periosteal reaction: a study in rat femur critical size bone defect model. Eur J Trauma Emerg Surg 2020; 48:679-687. [PMID: 33025170 PMCID: PMC8825401 DOI: 10.1007/s00068-020-01516-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 09/25/2020] [Indexed: 12/12/2022]
Abstract
Purpose The Masquelet technique for the treatment of large bone defects is a two-stage procedure based on an induced membrane. Compared to mature periosteum, the induced membrane differs significantly. However, both play a crucial role in bone regeneration. As part of a histological and radiological post-evaluation of an earlier project, we analyzed the influence of the granule size of the bone void filler Herafill® on development of periosteum regrowth in a critical size defect. Methods We compared three different sizes of Herafill® granules (Heraeus Medical GmbH, Wehrheim) in vivo in a rat femoral critical size defect (10 mm) treated with the induced membrane technique. After 8 weeks healing time, femurs were harvested and taken for histological and radiological analysis. Results A significantly increased regrowth of periosteum into the defect was found when small granules were used. Large granules showed significantly increased occurrence of bone capping. Small granules lead to significant increase in callus formation in the vicinity to the membrane. Conclusion The size of Herafill® granules has significant impact on the development of periosteal-like structures around the defect using Masquelet’s induced membrane technique. Small granules show significantly increased regrowth of periosteum and improved bone formation adjacent to the induced membrane.
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26
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Zhang C, Wang J, Xie Y, Wang L, Yang L, Yu J, Miyamoto A, Sun F. Development of FGF-2-loaded electrospun waterborne polyurethane fibrous membranes for bone regeneration. Regen Biomater 2020; 8:rbaa046. [PMID: 33732492 PMCID: PMC7947599 DOI: 10.1093/rb/rbaa046] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/06/2020] [Accepted: 09/11/2020] [Indexed: 12/24/2022] Open
Abstract
Guided bone regeneration (GBR) membrane has been used to improve functional outcomes for periodontal regeneration. However, few studies have focused on the biomimetic membrane mimicking the vascularization of the periodontal membrane. This study aimed to fabricate waterborne polyurethane (WPU) fibrous membranes loaded fibroblast growth factor-2 (FGF-2) via emulsion electrospinning, which can promote regeneration of periodontal tissue via the vascularization of the biomimetic GBR membrane. A biodegradable WPU was synthesized by using lysine and dimethylpropionic acid as chain extenders according to the rule of green chemical synthesis technology. The WPU fibers with FGF-2 was fabricated via emulsion electrospinning. The results confirmed that controlled properties of the fibrous membrane had been achieved with controlled degradation, suitable mechanical properties and sustained release of the factor. The immunohistochemical expression of angiogenic-related factors was positive, meaning that FGF-2 loaded in fibers can significantly promote cell vascularization. The fiber scaffold loaded FGF-2 has the potential to be used as a functional GBR membrane to promote the formation of extraosseous blood vessels during periodontal repairing.
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Affiliation(s)
- Chi Zhang
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, P.R. China
| | - Jianxiong Wang
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, P.R. China
| | - Yujie Xie
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, P.R. China
| | - Li Wang
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, P.R. China
| | - Lishi Yang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, P.R. China
| | - Jihua Yu
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, P.R. China
| | - Akira Miyamoto
- Faculty of Rehabilitation, Department of Physical Therapy, Kobe International University, Kobe, Japan
| | - Fuhua Sun
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, P.R. China
- Correspondence address. Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Taiping Street 25, Luzhou 646000, P.R. China. Tel.: +81-18428397607; E-mail:
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Zurina IM, Presniakova VS, Butnaru DV, Svistunov AA, Timashev PS, Rochev YA. Tissue engineering using a combined cell sheet technology and scaffolding approach. Acta Biomater 2020; 113:63-83. [PMID: 32561471 DOI: 10.1016/j.actbio.2020.06.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 06/08/2020] [Accepted: 06/10/2020] [Indexed: 12/13/2022]
Abstract
Cell sheet technology has remained quite popular among tissue engineering techniques over the last several years. Meanwhile, there is an apparent trend in modern scientific research towards combining different approaches and strategies. Accordingly, a large body of work has arisen where cell sheets are used not as separate structures, but in combination with scaffolds as supporting constructions. The aim of this review is to analyze the intersection of these two vast areas of tissue engineering described in the literature mainly within the last five years. Some practical and technical details are emphasized to provide information that can be useful in research design and planning. The first part of the paper describes the general issues concerning the use of combined technology, its advantages and limitations in comparison with those of other tissue engineering approaches. Next, the detailed literature analysis of in vivo studies aimed at the regeneration of different tissues is performed. A significant part of this section concerns bone regeneration. In addition to that, other connective tissue structures, including articular cartilage and fibrocartilage, ligaments and tendons, and some soft tissues are discussed. STATEMENT OF SIGNIFICANCE: This paper describes the intersection of two technologies used in designing of tissue-engineered constructions for regenerative medicine: cell sheets as extracellular matrix-rich structures and supporting scaffolds as essentials in tissue engineering. A large number of reviews are devoted to each of these scientific problems. However, the solution of complex problems of tissue engineering requires an integrated approach that includes both three-dimensional scaffolds and cell sheets. This manuscript serves as a description of advantages and limitations of this method, its use in regeneration of bones, connective tissues and soft tissues and some other details.
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Affiliation(s)
- Irina M Zurina
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119991 8-2 Trubetskaya St., Moscow, Russia; FSBSI Institute of General Pathology and Pathophysiology, 125315, 8 Baltiyskaya St., Moscow, Russia; FSBEI FPE "Russian Medical Academy of Continuous Professional Education" of the Ministry of Healthcare of Russia, 125993, 2/1-1 Barrikadnaya St., Moscow, Russia
| | - Viktoria S Presniakova
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119991 8-2 Trubetskaya St., Moscow, Russia
| | - Denis V Butnaru
- Sechenov First Moscow State Medical University (Sechenov University), 119991, 8-2 Trubetskaya St., Moscow, Russia
| | - Andrey A Svistunov
- Sechenov First Moscow State Medical University (Sechenov University), 119991, 8-2 Trubetskaya St., Moscow, Russia
| | - Peter S Timashev
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119991 8-2 Trubetskaya St., Moscow, Russia; Institute of Photonic Technologies, Research Center "Crystallography and Photonics", Russian Academy of Sciences, 108840, 2 Pionerskaya st., Troitsk, Moscow, Russia; Department of Polymers and Composites, N.N. Semenov Institute of Chemical Physics, 119991 4 Kosygin st., Moscow, Russia; Chemistry Department, Lomonosov Moscow State University, Leninskiye Gory 1‑3, Moscow 119991, Russia.
| | - Yury A Rochev
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119991 8-2 Trubetskaya St., Moscow, Russia; Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway, Galway H91 W2TY, Ireland
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Menger MM, Laschke MW, Orth M, Pohlemann T, Menger MD, Histing T. Vascularization Strategies in the Prevention of Nonunion Formation. TISSUE ENGINEERING PART B-REVIEWS 2020; 27:107-132. [PMID: 32635857 DOI: 10.1089/ten.teb.2020.0111] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Delayed healing and nonunion formation are major challenges in orthopedic surgery, which require the development of novel treatment strategies. Vascularization is considered one of the major prerequisites for successful bone healing, providing an adequate nutrient supply and allowing the infiltration of progenitor cells to the fracture site. Hence, during the last decade, a considerable number of studies have focused on the evaluation of vascularization strategies to prevent or to treat nonunion formation. These involve (1) biophysical applications, (2) systemic pharmacological interventions, and (3) tissue engineering, including sophisticated scaffold materials, local growth factor delivery systems, cell-based techniques, and surgical vascularization approaches. Accumulating evidence indicates that in nonunions, these strategies are indeed capable of improving the process of bone healing. The major challenge for the future will now be the translation of these strategies into clinical practice to make them accessible for the majority of patients. If this succeeds, these vascularization strategies may markedly reduce the incidence of nonunion formation. Impact statement Delayed healing and nonunion formation are a major clinical problem in orthopedic surgery. This review provides an overview of vascularization strategies for the prevention and treatment of nonunions. The successful translation of these strategies in clinical practice is of major importance to achieve adequate bone healing.
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Affiliation(s)
- Maximilian M Menger
- Department of Trauma, Hand and Reconstructive Surgery, Saarland University, Homburg, Germany
| | - Matthias W Laschke
- Institute for Clinical & Experimental Surgery, Saarland University, Homburg, Germany
| | - Marcel Orth
- Department of Trauma, Hand and Reconstructive Surgery, Saarland University, Homburg, Germany
| | - Tim Pohlemann
- Department of Trauma, Hand and Reconstructive Surgery, Saarland University, Homburg, Germany
| | - Michael D Menger
- Institute for Clinical & Experimental Surgery, Saarland University, Homburg, Germany
| | - Tina Histing
- Department of Trauma, Hand and Reconstructive Surgery, Saarland University, Homburg, Germany
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Injectable calcium phosphate ceramics prevent osteoclastic differentiation and osteoporotic bone loss: Potential applications for regional osteolysis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 110:110691. [PMID: 32204116 DOI: 10.1016/j.msec.2020.110691] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 01/11/2020] [Accepted: 01/21/2020] [Indexed: 02/04/2023]
Abstract
Calcium phosphates (CaPs) in the form of blocks are typically not satisfied for administration to osteoporotic patients because of their rapid resorption rate in vivo. However, injectable CaP powders have not been investigated for their potential in osteoporotic hosts. Herein, CaPs in the form of nanoparticles was reported can inhibit RANKL-stimulated osteoclastic differentiation (OC) and bone resorption, as evidenced by suppressed TRAP-positive cells, disintegrated F-actin rings and downregulated expression of markers for OC. CaP powders also significantly inhibited nuclear factor-κB (NF-κB) and nuclear factor of activated T-cells, cytoplasmic 1 (NFATc1) activation. Furthermore, injectable CaPs reversed bone loss in a mouse model induced by lipopolysaccharide (LPS) and promoted osteoblastic formation in the absent of pro-osteogenic agents. Therefore, injectable CaPs, especially biphasic calcium phosphate (BCP), could be developed as novel agents for the therapy of osteolysis-related diseases caused by inflammation.
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30
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Lu Y, Zhang W, Wang J, Yang G, Yin S, Tang T, Yu C, Jiang X. Recent advances in cell sheet technology for bone and cartilage regeneration: from preparation to application. Int J Oral Sci 2019; 11:17. [PMID: 31110170 PMCID: PMC6527566 DOI: 10.1038/s41368-019-0050-5] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/08/2019] [Accepted: 04/10/2019] [Indexed: 12/19/2022] Open
Abstract
Bone defects caused by trauma, tumour resection, infection and congenital deformities, together with articular cartilage defects and cartilage-subchondral bone complex defects caused by trauma and degenerative diseases, remain great challenges for clinicians. Novel strategies utilising cell sheet technology to enhance bone and cartilage regeneration are being developed. The cell sheet technology has shown great clinical potential in regenerative medicine due to its effective preservation of cell-cell connections and extracellular matrix and its scaffold-free nature. This review will first introduce several widely used cell sheet preparation systems, including traditional approaches and recent improvements, as well as their advantages and shortcomings. Recent advances in utilising cell sheet technology to regenerate bone or cartilage defects and bone-cartilage complex defects will be reviewed. The key challenges and future research directions for the application of cell sheet technology in bone and cartilage regeneration will also be discussed.
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Affiliation(s)
- Yuezhi Lu
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Wenjie Zhang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Jie Wang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Guangzheng Yang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Shi Yin
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chunhua Yu
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
| | - Xinquan Jiang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
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31
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Sun F, Chen J, Jin S, Wang J, Man Y, Li J, Zou Q, Li Y, Zuo Y. Development of biomimetic trilayer fibrous membranes for guided bone regeneration. J Mater Chem B 2019; 7:665-675. [PMID: 32254799 DOI: 10.1039/c8tb02435a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
in order to build fibrous bone tissue scaffolds for guided bone regeneration and to mimic the trilayer structure and the multifunctional properties of the natural periosteum, we fabricated two fibrous trilayer membranes by conjugate electrospinning technology, in which poly(ε-caprolactone) (PCL) fiber was designed as an outer layer, the mixed fibers of PCL and polyurethane (co-PUPCL) as the interlayer, and degradable polyurethane fibers with or without nano-hydroxyapatite (n-HA) as the inner layer (PUHA or PU). The microstructure and characteristics of the trilayer membranes were evaluated and different monolayer fibers were fabricated as the contrast samples. The tensile strength values of each layer increased from the inner layer to the outer layer in the designed structure, while the step-by-step electrospinning method produced good adhesion of different layers. Furthermore, the degradable properties and hydrophilicity of the layers changed with dissymmetric fibrous structures. Cell proliferation assay and cell morphology observation indicated that the PUHA inner fibrous layer exhibited better cell attachment and proliferation than PU. In addition, the osteogenicity of the PUHA fibrous layer has been attested through protein expression by the differentiation of rat mesenchymal stem cells (rMSCs) into the osteogenic lineage. Cell infiltration testing on the two sides of the trilayer membranes in vitro and in vivo showed that the inner layer had good cellular penetration deep into the scaffolds, whereas the cells were barred by the outer layer. We have developed a trilayer structured membrane with different polymer fibers to replicate the natural periosteum by improving functional outcomes, which is a promising fibrous scaffold for clinical use in the repair of destroyed bone.
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Affiliation(s)
- Fuhua Sun
- Research Center for Nano Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, P. R. China.
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32
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Ye Y, Pang Y, Zhang Z, Wu C, Jin J, Su M, Pan J, Liu Y, Chen L, Jin K. Decellularized Periosteum-Covered Chitosan Globule Composite for Bone Regeneration in Rabbit Femur Condyle Bone Defects. Macromol Biosci 2018; 18:e1700424. [PMID: 29931763 DOI: 10.1002/mabi.201700424] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 05/17/2018] [Indexed: 12/24/2022]
Abstract
Critical-sized bone defects are incapable of self-healing and are commonly seen in clinical practice. The authors explore a new treatment for this, decellularized periosteum is applied to chitosan globules (chitosan-DP globules) as a hybrid material. The efficacy of chitosan-DP globules on rabbit femoral condyle bone defects is assessed with biocompatibility, biomechanics, and osteogenic efficiency measurements, and compared with the results of chitosan globules and empty control. No difference in cytotoxicity is observed among chitosan-DP globules, chitosan globules, and the empty control. Chitosan-DP globules possesse a better surface for cell adhesion than did chitosan globules. Chitosan-DP globules demonstrate superior efficiency for osteogenesis in the defect area compared to chitosan globules as per microcomputed tomography examination and push-out testing, with relatively minor histological differences. Both chitosan globule groups show more satisfactory results than those for the empty control. The results implicate chitosan-DP globules as a promising solution for bone defects.
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Affiliation(s)
- Yiheng Ye
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.,Wenzhou Medical University, Wenzhou, 325000, China
| | - Yichuan Pang
- Department of Oral and Maxillofacial Surgery, Affiliated Shanghai 9th People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, 200000, China
| | - Zeng Zhang
- First Academy of Clinical Medicine, Wenzhou Medical University, Wenzhou, 325000, China
| | - Congcong Wu
- First Academy of Clinical Medicine, Wenzhou Medical University, Wenzhou, 325000, China
| | - Jianfeng Jin
- First Academy of Clinical Medicine, Wenzhou Medical University, Wenzhou, 325000, China
| | - Mingzhen Su
- First Academy of Clinical Medicine, Wenzhou Medical University, Wenzhou, 325000, China
| | - Junle Pan
- First Academy of Clinical Medicine, Wenzhou Medical University, Wenzhou, 325000, China
| | - Yangbo Liu
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.,Wenzhou Medical University, Wenzhou, 325000, China
| | - Lei Chen
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.,Wenzhou Medical University, Wenzhou, 325000, China
| | - Keke Jin
- Department of Pathophysiology, Wenzhou Medical University, Wenzhou, 325000, China
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