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Liu G, Chen J, Wang X, Liu Y, Ma Y, Tu X. Functionalized 3D-Printed ST2/Gelatin Methacryloyl/Polcaprolactone Scaffolds for Enhancing Bone Regeneration with Vascularization. Int J Mol Sci 2022; 23:ijms23158347. [PMID: 35955478 PMCID: PMC9368581 DOI: 10.3390/ijms23158347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/23/2022] [Accepted: 07/25/2022] [Indexed: 02/01/2023] Open
Abstract
Growth factors were often used to improve the bioactivity of biomaterials in order to fabricate biofunctionalized bone grafts for bone defect repair. However, supraphysiological concentrations of growth factors for improving bioactivity could lead to serious side effects, such as ectopic bone formation, radiculitis, swelling of soft tissue in the neck, etc. Therefore, safely and effectively applying growth factors in bone repair biomaterials comes to be an urgent problem that needs to be addressed. In this study, an appropriate concentration (50 ng/mL) of Wnt3a was used to pretreat the 3D-bioprinting gelatin methacryloyl(GelMA)/polycaprolactone(PCL) scaffold loaded with bone marrow stromal cell line ST2 for 24 h. This pretreatment promoted the cell proliferation, osteogenic differentiation, and mineralization of ST2 in the scaffold in vitro, and enhanced angiogenesis and osteogenesis after being implanted in critical-sized mouse calvarial defects. On the contrary, the inhibition of Wnt/β-catenin signaling in ST2 cells reduced the bone repair effect of this scaffold. These results suggested that ST2/GelMA/PCL scaffolds pretreated with an appropriate concentration of Wnt3a in culture medium could effectively enhance the osteogenic and angiogenic activity of bone repair biomaterials both in vitro and in vivo. Moreover, it would avoid the side effects caused by the supraphysiological concentrations of growth factors. This functionalized scaffold with osteogenic and angiogenic activity might be used as an outstanding bone substitute for bone regeneration and repair.
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Bjelić D, Finšgar M. The Role of Growth Factors in Bioactive Coatings. Pharmaceutics 2021; 13:1083. [PMID: 34371775 PMCID: PMC8309025 DOI: 10.3390/pharmaceutics13071083] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/08/2021] [Accepted: 07/12/2021] [Indexed: 12/26/2022] Open
Abstract
With increasing obesity and an ageing population, health complications are also on the rise, such as the need to replace a joint with an artificial one. In both humans and animals, the integration of the implant is crucial, and bioactive coatings play an important role in bone tissue engineering. Since bone tissue engineering is about designing an implant that maximally mimics natural bone and is accepted by the tissue, the search for optimal materials and therapeutic agents and their concentrations is increasing. The incorporation of growth factors (GFs) in a bioactive coating represents a novel approach in bone tissue engineering, in which osteoinduction is enhanced in order to create the optimal conditions for the bone healing process, which crucially affects implant fixation. For the application of GFs in coatings and their implementation in clinical practice, factors such as the choice of one or more GFs, their concentration, the coating material, the method of incorporation, and the implant material must be considered to achieve the desired controlled release. Therefore, the avoidance of revision surgery also depends on the success of the design of the most appropriate bioactive coating. This overview considers the integration of the most common GFs that have been investigated in in vitro and in vivo studies, as well as in human clinical trials, with the aim of applying them in bioactive coatings. An overview of the main therapeutic agents that can stimulate cells to express the GFs necessary for bone tissue development is also provided. The main objective is to present the advantages and disadvantages of the GFs that have shown promise for inclusion in bioactive coatings according to the results of numerous studies.
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Affiliation(s)
| | - Matjaž Finšgar
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia;
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Jiang M, Liu R, Liu L, Kot A, Liu X, Xiao W, Jia J, Li Y, Lam KS, Yao W. Identification of osteogenic progenitor cell-targeted peptides that augment bone formation. Nat Commun 2020; 11:4278. [PMID: 32855388 PMCID: PMC7453024 DOI: 10.1038/s41467-020-17417-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 06/16/2020] [Indexed: 12/02/2022] Open
Abstract
Activation and migration of endogenous mesenchymal stromal cells (MSCs) are critical for bone regeneration. Here, we report a combinational peptide screening strategy for rapid discovery of ligands that not only bind strongly to osteogenic progenitor cells (OPCs) but also stimulate osteogenic cell Akt signaling in those OPCs. Two lead compounds are discovered, YLL3 and YLL8, both of which increase osteoprogenitor osteogenic differentiation in vitro. When given to normal or osteopenic mice, the compounds increase mineral apposition rate, bone formation, bone mass, and bone strength, as well as expedite fracture repair through stimulated endogenous osteogenesis. When covalently conjugated to alendronate, YLLs acquire an additional function resulting in a “tri-functional” compound that: (i) binds to OPCs, (ii) targets bone, and (iii) induces “pro-survival” signal. These bone-targeted, osteogenic peptides are well suited for current tissue-specific therapeutic paradigms to augment the endogenous osteogenic cells for bone regeneration and the treatment of bone loss. Activation of osteogenic cells is essential for bone regeneration. Here, the authors screen a peptide library and identify 2 compounds that promote osteogenic progenitor cell differentiation in vitro, and show that they increase bone formation and fracture repair in mice.
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Affiliation(s)
- Min Jiang
- Center for Musculoskeletal Health, Department of Internal Medicine, The University of California at Davis Medical Center, Sacramento, CA, 95817, USA.,Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, 200025, Shanghai, China
| | - Ruiwu Liu
- Department of Biochemistry and Molecular Medicine, The University of California at Davis Medical Center, Sacramento, CA, 95817, USA
| | - Lixian Liu
- Center for Musculoskeletal Health, Department of Internal Medicine, The University of California at Davis Medical Center, Sacramento, CA, 95817, USA
| | - Alexander Kot
- Center for Musculoskeletal Health, Department of Internal Medicine, The University of California at Davis Medical Center, Sacramento, CA, 95817, USA
| | - Xueping Liu
- Center for Musculoskeletal Health, Department of Internal Medicine, The University of California at Davis Medical Center, Sacramento, CA, 95817, USA
| | - Wenwu Xiao
- Department of Biochemistry and Molecular Medicine, The University of California at Davis Medical Center, Sacramento, CA, 95817, USA
| | - Junjing Jia
- Center for Musculoskeletal Health, Department of Internal Medicine, The University of California at Davis Medical Center, Sacramento, CA, 95817, USA
| | - Yuanpei Li
- Department of Biochemistry and Molecular Medicine, The University of California at Davis Medical Center, Sacramento, CA, 95817, USA
| | - Kit S Lam
- Department of Biochemistry and Molecular Medicine, The University of California at Davis Medical Center, Sacramento, CA, 95817, USA
| | - Wei Yao
- Center for Musculoskeletal Health, Department of Internal Medicine, The University of California at Davis Medical Center, Sacramento, CA, 95817, USA.
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Donos N, Dereka X, Calciolari E. The use of bioactive factors to enhance bone regeneration: A narrative review. J Clin Periodontol 2019; 46 Suppl 21:124-161. [DOI: 10.1111/jcpe.13048] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/08/2018] [Accepted: 12/20/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Nikos Donos
- Centre for Oral Immunobiology & Regenerative Medicine & Centre for Oral Clinical Research (COCR); Institute of Dentistry, Barts & The London School of Medicine & Dentistry; Queen Mary University of London (QMUL); London UK
| | - Xanthippi Dereka
- Centre for Oral Immunobiology & Regenerative Medicine & Centre for Oral Clinical Research (COCR); Institute of Dentistry, Barts & The London School of Medicine & Dentistry; Queen Mary University of London (QMUL); London UK
- Department of Periodontology; School of Dentistry; National and Kapodistrian University of Athens; Athens Greece
| | - Elena Calciolari
- Centre for Oral Immunobiology & Regenerative Medicine & Centre for Oral Clinical Research (COCR); Institute of Dentistry, Barts & The London School of Medicine & Dentistry; Queen Mary University of London (QMUL); London UK
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de Oliveira N, Oliveira J, de Souza Moraes L, Weiss SG, Chaves LH, Casagrande TC, Deliberador TM, Giovanini AF, Zielak JC, Scariot R. Bone repair in craniofacial defects treated with different doses of alendronate: a histological, histomorphometric, and immunohistochemical study. Clin Oral Investig 2018; 23:2355-2364. [PMID: 30302611 DOI: 10.1007/s00784-018-2670-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 09/26/2018] [Indexed: 01/09/2023]
Abstract
OBJECTIVE The objective of the study is to evaluate bone repair in rats treated with different alendronate doses. MATHERIALS AND METHODS Sixty female rats ovariectomized were randomly divided in three groups: group C (control group), group A1 (ALN/1 mg/kg), and A2 (ALN/ 3 mg/kg). Each animal received subcutaneous applications of sodium alendronate at a dose correspondent to group A1 or A2 three times a week, while the control group received 0.9% saline solution. After 4 weeks of application, a critical defect was created in the calvaria of animals of all groups. The defect was filled by particulate autogenous bone. The applications were maintained until euthanasia, which occurred 15 and 60 days after the surgical procedure. The pieces were sent for histological, histomorphometric and immunohistochemical analysis. The data were submitted to statistical analysis with significance level of 0.05. RESULTS The descriptive histological analysis demonstrated an increase in bone neoformation in both groups treated with alendronate when compared to the control group. The histomorphometric analysis showed an increase in the amount of neoformed bone in A1 and A2 groups when compared to group C, both at 15 days (p = 0.0002) and at 60 days (p = 0.001). In the immunohistochemical analysis, it was possible to observe a difference in immunolabeling just for Mmp2 at the time of 60 days in A1 (p = 0.001) and A2 (p = 0.023) when compared to the control group. CONCLUSION Systemic delivery of alendronate, regardless of the dose, increased the amount of bone neoformation. CLINICAL RELEVANCE Prescription of sodium alendronate at 1 mg/kg for improvement of bone neoformation in bone graft procedures.
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Affiliation(s)
- Naylin de Oliveira
- School of Health Sciences, Department of Dentistry, Positivo University, Curitiba, Paraná, Brazil
| | - Jefferson Oliveira
- School of Health Sciences, Department of Dentistry, Positivo University, Curitiba, Paraná, Brazil
| | - Letícia de Souza Moraes
- School of Health Sciences, Department of Dentistry, Positivo University, Curitiba, Paraná, Brazil
| | - Suyany Gabriely Weiss
- School of Health Sciences, Department of Dentistry, Positivo University, Curitiba, Paraná, Brazil
| | - Luís Henrique Chaves
- School of Health Sciences, Department of Dentistry, Positivo University, Curitiba, Paraná, Brazil
| | | | - Tatiana Miranda Deliberador
- School of Health Sciences, Department of Dentistry, Positivo University, 5300 Professor Pedro Viriato Parigot de Souza Street, Campo Comprido, Curitiba, PR, 81280-330, Brazil
| | - Allan Fernando Giovanini
- School of Health Sciences, Department of Dentistry, Positivo University, 5300 Professor Pedro Viriato Parigot de Souza Street, Campo Comprido, Curitiba, PR, 81280-330, Brazil
| | - João César Zielak
- School of Health Sciences, Department of Dentistry, Positivo University, 5300 Professor Pedro Viriato Parigot de Souza Street, Campo Comprido, Curitiba, PR, 81280-330, Brazil
| | - Rafaela Scariot
- School of Health Sciences, Department of Dentistry, Positivo University, 5300 Professor Pedro Viriato Parigot de Souza Street, Campo Comprido, Curitiba, PR, 81280-330, Brazil.
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Natural and synthetic polymers/bioceramics/bioactive compounds-mediated cell signalling in bone tissue engineering. Int J Biol Macromol 2017; 110:88-96. [PMID: 28917940 DOI: 10.1016/j.ijbiomac.2017.09.029] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 08/26/2017] [Accepted: 09/12/2017] [Indexed: 12/24/2022]
Abstract
Bone is a highly integrative and dynamic tissue of the human body. It is continually remodeled by bone cells such as osteoblasts, osteoclasts. When a fraction of a bone is damaged or deformed, stem cells and bone cells under the influence of several signaling pathways regulate bone regeneration at the particular locale. Effective therapies for bone defects can be met via bone tissue engineering which employs drug delivery systems with biomaterials to enhance cellular functions by acting on signaling pathways such as Wnt, BMP, TGF-β, and Notch. This review provides the current understanding of polymers/bioceramics/bioactive compounds as scaffolds in activation of signaling pathways for the formation of bone.
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Su YW, Zhou XF, Foster BK, Grills BL, Xu J, Xian CJ. Roles of neurotrophins in skeletal tissue formation and healing. J Cell Physiol 2017; 233:2133-2145. [PMID: 28370021 DOI: 10.1002/jcp.25936] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Accepted: 03/27/2017] [Indexed: 12/21/2022]
Abstract
Neurotrophins and their receptors are key molecules that are known to be critical in regulating nervous system development and maintenance and have been recognized to be also involved in regulating tissue formation and healing in skeletal tissues. Studies have shown that neurotrophins and their receptors are widely expressed in skeletal tissues, implicated in chondrogenesis, osteoblastogenesis, and osteoclastogenesis, and are also involved in regulating tissue formation and healing events in skeletal tissue. Increased mRNA expression for neurotrophins NGF, BDNF, NT-3, and NT-4, and their Trk receptors has been observed in injured bone tissues, and NT-3 and its receptor, TrkC, have been identified to have the highest induction at the injury site in a drill-hole injury repair model in both bone and the growth plate. In addition, NT-3 has also recently been shown to be both an osteogenic and angiogenic factor, and this neurotrophin can also enhance expression of the key osteogenic factor, BMP-2, as well as the major angiogenic factor, VEGF, to promote bone formation, vascularization, and healing of the injury site. Further studies, however, are needed to investigate if different neurotrophins have differential roles in skeletal repair, and if NT-3 can be a potential target of intervention for promoting bone fracture healing.
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Affiliation(s)
- Yu-Wen Su
- Sansom Institute for Health Research and School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Xin-Fu Zhou
- Sansom Institute for Health Research and School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Bruce K Foster
- Department of Orthopaedic Surgery, Women's and Children's Hospital, North Adelaide, South Australia, Australia
| | - Brian L Grills
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Bundoora, Victoria, Australia
| | - Jiake Xu
- School of Biomedical Sciences, University of Western Australia, Nedlands, Western Australia, Australia
| | - Cory J Xian
- Sansom Institute for Health Research and School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, Australia
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Zhang W, Wang S, Yin H, Chen E, Xue D, Zheng Q, Gao X, Pan Z. Dihydromyricetin enhances the osteogenic differentiation of human bone marrow mesenchymal stem cells in vitro partially via the activation of Wnt/β-catenin signaling pathway. Fundam Clin Pharmacol 2016; 30:596-606. [PMID: 27469984 DOI: 10.1111/fcp.12225] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 07/06/2016] [Accepted: 07/26/2016] [Indexed: 01/06/2023]
Abstract
Substantial evidence has demonstrated that the decreased osteogenic differentiation of bone mesenchymal stem cells (BMSCs) is closely related to bone metabolic diseases. Thus, it is very important to develop several potentially useful therapeutic agents to enhance BMSC osteogenesis. Flavonoids show promise in enhancing bone mass. Dihydromyricetin (DMY), a type of flavonoid, has not yet been investigated regarding its effects on BMSC osteogenesis. To investigate the effects of DMY on osteogenesis, human BMSCs were induced with or without DMY. We found that DMY (0.1-50 μm) exhibited no cytotoxic effect on proliferation, but increased alkaline phosphatase activity, osteoblast-specific gene expression, and mineral deposition. It also enhanced active β-catenin expression and reduced dickkopf-1(DKK1) and sclerostin expression. The Wnt/β-catenin signaling pathway inhibitor (DKK1 and β-catenin-specific siRNA) decreased the enhanced bone mineral formation caused by DMY. Taken together, these findings reveal that DMY enhances osteogenic differentiation of human BMSCs partly through Wnt/β-catenin in vitro.
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Affiliation(s)
- Wei Zhang
- Department of Orthopedics, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Shengdong Wang
- Department of Orthopedics, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Houfa Yin
- Department of Orthopedics, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Erman Chen
- Department of Orthopedics, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Deting Xue
- Department of Orthopedics, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Qiang Zheng
- Department of Orthopedics, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Xiang Gao
- Department of Orthopedics, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Zhijun Pan
- Department of Orthopedics, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
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