1
|
Zhang Y, Zhao X, Ge D, Huang Y, Yao Q. The impact and mechanism of nerve injury on bone metabolism. Biochem Biophys Res Commun 2024; 704:149699. [PMID: 38412668 DOI: 10.1016/j.bbrc.2024.149699] [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] [Received: 11/19/2023] [Revised: 01/30/2024] [Accepted: 02/15/2024] [Indexed: 02/29/2024]
Abstract
With an increasing understanding of the mechanisms of fracture healing, it has been found that nerve injury plays a crucial role in the process, but the specific mechanism is yet to be completely revealed. To address this issue and provide novel insights for fracture treatment, we compiled this review. This review aims to study the impact of nerve injury on fracture healing, exploring the role of neurotrophic factors in the healing process. We first revisited the effects of the central nervous system (CNS) and the peripheral nervous system (PNS) on the skeletal system, and further explained the phenomenon of significantly accelerated fracture healing under nerve injury conditions. Then, from the perspective of neurotrophic factors, we delved into the physiological functions and mechanisms of neurotrophic factors, such as nerve growth factor (NGF), Neuropeptides (NPs), and Brain-derived neurotrophic factor (BDNF), in bone metabolism. These effects include direct actions on bone cells, improvement of local blood supply, regulation of bone growth factors, control of cellular signaling pathways, promotion of callus formation and bone regeneration, and synergistic or antagonistic effects with other endocrine factors, such as Sema3A and Transforming Growth Factor β (TGF-β). Finally, we discussed the treatments of fractures with nerve injuries and the future research directions in this review, suggesting that the relationship between nerve injury and fracture healing, as well as the role of nerve injury in other skeletal diseases.
Collapse
Affiliation(s)
- Yongqiang Zhang
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China; Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China; Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Xiao Zhao
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China; Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China; Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Dawei Ge
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China; Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China; Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Yang Huang
- International Innovation Center for Forest Chemicals & Materials and Jiangsu Co-Innovation Center of Efficient Processing & Utilization of Forest Resources, Nanjing Forestry University, Nanjing, China
| | - Qingqiang Yao
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China; Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China; Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China.
| |
Collapse
|
2
|
Qiang L, Fan M, Wang Y, Liu Y, Zhuang H, Guo R, Huang H, Ben Y, Wang D, Wu X, Wang J, Weng J, Zheng P. Injectable hydrogel loaded with bilayer microspheres to inhibit angiogenesis and promote cartilage regeneration for repairing growth plate injury. Front Bioeng Biotechnol 2023; 11:1181580. [PMID: 37274168 PMCID: PMC10232875 DOI: 10.3389/fbioe.2023.1181580] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/09/2023] [Indexed: 06/06/2023] Open
Abstract
Introduction: The repair and regeneration of growth plate injuries using tissue engineering techniques remains a challenge due to large bone bridge formation and low chondrogenic efficiency. Methods: In this study, a bilayer drug-loaded microspheres was developed that contains the vascular endothelial growth factor (VEGF) inhibitor, Bevacizumab, on the outer layer and insulin-like growth factor-1 (IGF-1), a cartilage repair factor, on the inner layer. The microspheres were then combined with bone marrow mesenchymal stem cells (BMSCs) in the gelatin methacryloyl (GelMA) hydrogel to create a composite hydrogel with good injectability and biocompatibility. Results: The in vitro drug-release profile of bilayer microspheres showed a sequential release, with Bevacizumab released first followed by IGF-1. And this hydrogel simultaneously inhibited angiogenesis and promoted cartilage regeneration. Finally, in vivo studies indicated that the composite hydrogel reduced bone bridge formation and improved cartilage regeneration in the rabbit model of proximal tibial growth plate injury. Conclusion: This bilayer microsphere-based composite hydrogel with sequential controlled release of Bevacizumab and IGF-1 has promising potential for growth plate injury repair.
Collapse
Affiliation(s)
- Lei Qiang
- Department of Orthopaedic Surgery, Children’s Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Key Laboratory of Advanced Technologies of Materials (MOE), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Minjie Fan
- Department of Orthopaedic Surgery, Children’s Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yiwei Wang
- Department of Orthopaedic Surgery, Children’s Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yihao Liu
- Department of Orthopaedic Surgery, Children’s Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hanjie Zhuang
- Department of Orthopaedic Surgery, Children’s Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ruoyi Guo
- Department of Orthopaedic Surgery, Children’s Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hao Huang
- Key Laboratory of Advanced Technologies of Materials (MOE), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Yulong Ben
- Department of Orthopaedic Surgery, Children’s Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Dalin Wang
- Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing, Jiangsu, China
| | - Xiaoling Wu
- School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jinwu Wang
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Weng
- Key Laboratory of Advanced Technologies of Materials (MOE), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Pengfei Zheng
- Department of Orthopaedic Surgery, Children’s Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| |
Collapse
|
3
|
Guo R, Zhuang H, Chen X, Ben Y, Fan M, Wang Y, Zheng P. Tissue engineering in growth plate cartilage regeneration: Mechanisms to therapeutic strategies. J Tissue Eng 2023; 14:20417314231187956. [PMID: 37483459 PMCID: PMC10359656 DOI: 10.1177/20417314231187956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 06/29/2023] [Indexed: 07/25/2023] Open
Abstract
The repair of growth plate injuries is a highly complex process that involves precise spatiotemporal regulation of multiple cell types. While significant progress has been made in understanding the pathological mechanisms underlying growth plate injuries, effectively regulating this process to regenerate the injured growth plate cartilage remains a challenge. Tissue engineering technology has emerged as a promising therapeutic approach for achieving tissue regeneration through the use of functional biological materials, seed cells and biological factors, and it is now widely applied to the regeneration of bone and cartilage. However, due to the unique structure and function of growth plate cartilage, distinct strategies are required for effective regeneration. Thus, this review provides an overview of current research on the application of tissue engineering to promote growth plate regeneration. It aims to elucidates the underlying mechanisms by which tissue engineering promotes growth plate regeneration and to provide novel insights and therapeutic strategies for future research on the regeneration of growth plate.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Pengfei Zheng
- Department of Orthopaedic Surgery, Children’s Hospital of Nanjing Medical University, Nanjing, China
| |
Collapse
|
4
|
Stager MA, Thomas SM, Rotello-Kuri N, Payne KA, Krebs MD. Polyelectrolyte Complex Hydrogels with Controlled Mechanics Affect Mesenchymal Stem Cell Differentiation Relevant to Growth Plate Injuries. Macromol Biosci 2022; 22:e2200126. [PMID: 35836324 PMCID: PMC9481665 DOI: 10.1002/mabi.202200126] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 06/03/2022] [Indexed: 11/07/2022]
Abstract
The growth plate is a complex cartilage structure in long bones that mediates growth in children. When injured, the formation of a "bony bar" can occur which impedes normal growth and can cause angular deformities or growth arrest. Current treatments for growth plate injuries are limited and result in poor patient outcomes, necessitating research toward novel treatments that can prevent bony bar formation and stimulate cartilage regeneration. This study investigates alginate-chitosan polyelectrolyte complex (PEC) hydrogels as an injectable biomaterial system to prevent bony bar formation. Biomaterial properties including stiffness and degradation are quantified, and the effect that material properties have on mesenchymal stem cell (MSC) fate is quantified in vitro. Specifically, this study aims to elucidate the effectiveness of biomaterial-based control over the differentiation behavior of MSCs toward osteogenic or chondrogenic lineages using biochemical metabolite assays and quantitative real time PCR. Further, the PEC hydrogels are employed in a rat growth plate injury model to determine their effectiveness in preventing bony bar formation in vivo. Results indicate that hydrogel composition and material properties affect the differentiation tendency of MSCs in vitro, and the PEC hydrogels show promise as an injectable biomaterial for growth plate injuries.
Collapse
Affiliation(s)
- Michael A Stager
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, CO, 80401, USA
| | - Stacey M Thomas
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Nicholas Rotello-Kuri
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Karin A Payne
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Melissa D Krebs
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, CO, 80401, USA
| |
Collapse
|
5
|
Rashidi A, Theruvath AJ, Huang CH, Wu W, Mahmoud EE, Jesu Raj JG, Marycz K, Daldrup-Link HE. Vascular injury of immature epiphyses impair stem cell engraftment in cartilage defects. Sci Rep 2022; 12:11696. [PMID: 35810189 PMCID: PMC9271080 DOI: 10.1038/s41598-022-15721-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 06/28/2022] [Indexed: 11/09/2022] Open
Abstract
The purpose of our study was to investigate if vascular injury in immature epiphyses affects cartilage repair outcomes of matrix-associated stem cell implants (MASI). Porcine bone marrow mesenchymal stromal stem cells (BMSCs) suspended in a fibrin glue scaffold were implanted into 24 full-thickness cartilage defects (5 mm ø) of the bilateral distal femur of six Göttingen minipigs (n = 12 defects in 6 knee joints of 3 immature pigs; age 3.5-4 months; n = 12 defects in 6 knee joints of 3 mature control pigs; age, 21-28 months). All pigs underwent magnetic resonance imaging (MRI) at 2, 4, 12 (n = 24 defects), and 24 weeks (n = 12 defects). After the last imaging study, pigs were sacrificed, joints explanted and evaluated with VEGF, H&E, van Gieson, Mallory, and Safranin O stains. Results of mature and immature cartilage groups were compared using the Wilcoxon signed-rank test. Quantitative scores for subchondral edema at 2 weeks were correlated with quantitative scores for cartilage repair (MOCART score and ICRS score) at 12 weeks as well as Pineda scores at end of the study, using linear regression analysis. On serial MRIs, mature joints demonstrated progressive healing of cartilage defects while immature joints demonstrated incomplete healing and damage of the subchondral bone. The MOCART score at 12 weeks was significantly higher for mature joints (79.583 ± 7.216) compared to immature joints (30.416 ± 10.543, p = 0.002). Immature cartilage demonstrated abundant microvessels while mature cartilage did not contain microvessels. Accordingly, cartilage defects in immature joints showed a significantly higher number of disrupted microvessels, subchondral edema, and angiogenesis compared to mature cartilage. Quantitative scores for subchondral edema at 2 weeks were negatively correlated with MOCART scores (r = - 0.861) and ICRS scores (r = - 0.901) at 12 weeks and positively correlated with Pineda scores at the end of the study (r = 0.782). Injury of epiphyseal blood vessels in immature joints leads to subchondral bone defects and limits cartilage repair after MASI.
Collapse
Affiliation(s)
- Ali Rashidi
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology, School of Medicine, Stanford University, Stanford, CA, 94305, USA.,Institute for Stem Cell Biology and Regenerative Medicine, School of Medicine, Stanford University, Stanford, CA, USA
| | - Ashok J Theruvath
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology, School of Medicine, Stanford University, Stanford, CA, 94305, USA.,Institute for Stem Cell Biology and Regenerative Medicine, School of Medicine, Stanford University, Stanford, CA, USA
| | - Ching-Hsin Huang
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology, School of Medicine, Stanford University, Stanford, CA, 94305, USA.,Institute for Stem Cell Biology and Regenerative Medicine, School of Medicine, Stanford University, Stanford, CA, USA
| | - Wei Wu
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology, School of Medicine, Stanford University, Stanford, CA, 94305, USA.,Institute for Stem Cell Biology and Regenerative Medicine, School of Medicine, Stanford University, Stanford, CA, USA
| | - Elhussein E Mahmoud
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology, School of Medicine, Stanford University, Stanford, CA, 94305, USA.,Institute for Stem Cell Biology and Regenerative Medicine, School of Medicine, Stanford University, Stanford, CA, USA.,Department of Surgery, Veterinary School, South Valley University, Qena, Egypt
| | - Joe Gerald Jesu Raj
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology, School of Medicine, Stanford University, Stanford, CA, 94305, USA.,Institute for Stem Cell Biology and Regenerative Medicine, School of Medicine, Stanford University, Stanford, CA, USA
| | - Krzysztof Marycz
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology, School of Medicine, Stanford University, Stanford, CA, 94305, USA.,International Institute of Translational Medicine (MIMT), Malin, Wisznia Mała, Poland
| | - Heike E Daldrup-Link
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology, School of Medicine, Stanford University, Stanford, CA, 94305, USA. .,Institute for Stem Cell Biology and Regenerative Medicine, School of Medicine, Stanford University, Stanford, CA, USA. .,Department of Pediatrics, School of Medicine, Stanford University, Stanford, CA, USA.
| |
Collapse
|
6
|
Erickson CB, Newsom JP, Fletcher NA, Yu Y, Rodriguez-Fontan F, Weatherford SA, Hadley-Miller N, Krebs MD, Payne KA. Anti-VEGF antibody delivered locally reduces bony bar formation following physeal injury in rats. J Orthop Res 2021; 39:1658-1668. [PMID: 33179297 DOI: 10.1002/jor.24907] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 10/20/2020] [Accepted: 11/08/2020] [Indexed: 02/04/2023]
Abstract
Physeal injuries can result in the formation of a "bony bar" which can lead to bone growth arrest and deformities in children. Vascular endothelial growth factor (VEGF) has been shown to play a role in bony bar formation, making it a potential target to inhibit bony repair tissue after physeal injury. The goal of this study was to investigate whether the local delivery of anti-VEGF antibody (α-VEGF; 7.5 μg) from alginate:chitosan hydrogels to the tibial physeal injury site in rats prevents bony bar formation. We tested the effects of quick or delayed delivery of α-VEGF using both 90:10 and 50:50 ratio alginate:chitosan hydrogels, respectively. Male and female 6-week-old Sprague-Dawley rats received a tibial physeal injury and the injured site injected with alginate-chitosan hydrogels: (1) 90:10 (Quick Release); (2) 90:10 + α-VEGF (Quick Release + α-VEGF); (3) 50:50 (Slow Release); (4) 50:50 + α-VEGF (Slow Release + α-VEGF); or (5) Untreated. At 2, 4, and 24 weeks postinjury, animals were euthanized and tibiae assessed for bony bar and vessel formation, repair tissue type, and limb lengthening. Our results indicate that Quick Release + α-VEGF reduced bony bar and vessel formation, while also increasing cartilage repair tissue. Further, the quick release of α-VEGF neither affected limb lengthening nor caused deleterious side-effects in the adjacent, uninjured physis. This α-VEGF treatment, which inhibits bony bar formation without interfering with normal bone elongation, could have positive implications for children suffering from physeal injuries.
Collapse
Affiliation(s)
- Christopher B Erickson
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.,Department of Bioengineering, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jake P Newsom
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado, USA
| | - Nathan A Fletcher
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado, USA
| | - Yangyi Yu
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.,Department of Orthopedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | | | - Shane A Weatherford
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Nancy Hadley-Miller
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Melissa D Krebs
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado, USA
| | - Karin A Payne
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.,Gates Center for Regenerative Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| |
Collapse
|
7
|
Wang X, Li Z, Wang C, Bai H, Wang Z, Liu Y, Bao Y, Ren M, Liu H, Wang J. Enlightenment of Growth Plate Regeneration Based on Cartilage Repair Theory: A Review. Front Bioeng Biotechnol 2021; 9:654087. [PMID: 34150725 PMCID: PMC8209549 DOI: 10.3389/fbioe.2021.654087] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/10/2021] [Indexed: 01/21/2023] Open
Abstract
The growth plate (GP) is a cartilaginous region situated between the epiphysis and metaphysis at the end of the immature long bone, which is susceptible to mechanical damage because of its vulnerable structure. Due to the limited regeneration ability of the GP, current clinical treatment strategies (e.g., bone bridge resection and fat engraftment) always result in bone bridge formation, which will cause length discrepancy and angular deformity, thus making satisfactory outcomes difficult to achieve. The introduction of cartilage repair theory and cartilage tissue engineering technology may encourage novel therapeutic approaches for GP repair using tissue engineered GPs, including biocompatible scaffolds incorporated with appropriate seed cells and growth factors. In this review, we summarize the physiological structure of GPs, the pathological process, and repair phases of GP injuries, placing greater emphasis on advanced tissue engineering strategies for GP repair. Furthermore, we also propose that three-dimensional printing technology will play a significant role in this field in the future given its advantage of bionic replication of complex structures. We predict that tissue engineering strategies will offer a significant alternative to the management of GP injuries.
Collapse
Affiliation(s)
- Xianggang Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - Zuhao Li
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - Chenyu Wang
- Department of Plastic and Reconstructive Surgery, The First Hospital of Jilin University, Changchun, China
| | - Haotian Bai
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - Zhonghan Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - Yuzhe Liu
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - Yirui Bao
- Department of Orthopedics, Chinese PLA 965 Hospital, Jilin, China
| | - Ming Ren
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - He Liu
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - Jincheng Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| |
Collapse
|
8
|
Su YW, Wong DSK, Fan J, Chung R, Wang L, Chen Y, Xian CH, Yao L, Wang L, Foster BK, Xu J, Xian CJ. Enhanced BMP signalling causes growth plate cartilage dysrepair in rats. Bone 2021; 145:115874. [PMID: 33548573 DOI: 10.1016/j.bone.2021.115874] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/25/2020] [Accepted: 01/29/2021] [Indexed: 11/30/2022]
Abstract
Growth plate cartilage injuries often result in bony repair at the injury site and premature mineralisation at the uninjured region causing bone growth defects, for which underlying mechanisms are unclear. With the prior microarray study showing upregulated bone morphogenetic protein (BMP) signalling during the injury site bony repair and with the known roles of BMP signalling in bone healing and growth plate endochondral ossification, this study used a rat tibial growth plate drill-hole injury model with or without systemic infusion of BMP antagonist noggin to investigate roles of BMP signalling in injury repair responses within the injury site and in the adjacent "uninjured" cartilage. At days 8, 14 and 35 post-injury, increased expression of BMP members and receptors and enhanced BMP signalling (increased levels of phosphorylated (p)-Smad1/5/8) were found during injury site bony repair. After noggin treatment, injury site bony repair at days 8 and 14 was reduced as shown by micro-CT and histological analyses and lower mRNA expression of osteogenesis-related genes Runx2 and osteocalcin (by RT-PCR). At the adjacent uninjured cartilage, the injury caused increases in the hypertrophic zone/proliferative zone height ratio and in mRNA expression of hypertrophy marker collagen-10, but a decrease in chondrogenesis marker Sox9 at days 14 and/or 35, which were accompanied by increased BMP signalling (increased levels of pSmad1/5/8 protein and BMP7, BMPR1a and target gene Dlx5 mRNA). Noggin treatment reduced the hypertrophic zone/proliferative zone height ratio and collagen-10 mRNA expression, but increased collagen-2 mRNA levels at the adjacent growth plate. This study has identified critical roles of BMP signalling in the injury site bony repair and in the hypertrophic degeneration of the adjacent growth plate in a growth plate drill-hole repair model. Moreover, suppressing BMP signalling can potentially attenuate the undesirable bony repair at injury site and suppress the premature hypertrophy but potentially rescue chondrogenesis at the adjacent growth plate.
Collapse
Affiliation(s)
- Yu-Wen Su
- University of South Australia, UniSA Clinical and Health Sciences, Adelaide, SA 5001, Australia
| | - Derick S K Wong
- University of South Australia, UniSA Clinical and Health Sciences, Adelaide, SA 5001, Australia
| | - Jian Fan
- Department of Orthopedics, Tongji Hospital, Tongji University, Shanghai 200065, China
| | - Rosa Chung
- University of South Australia, UniSA Clinical and Health Sciences, Adelaide, SA 5001, Australia
| | - Liping Wang
- University of South Australia, UniSA Clinical and Health Sciences, Adelaide, SA 5001, Australia; Ningbo No. 6 Hospital, Ningbo University, Ningbo 315040, China
| | - Yuhui Chen
- Department of Orthopedics, Orthopaedic Hospital of Guangdong Province, the Third Affiliated Hospital of Southern Medical University, Academy of Orthopaedics of Guangdong Province, Guangzhou 510630, Guangdong, China
| | - Claire H Xian
- Discipline of Physiology, Adelaide Medical School, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Lufeng Yao
- Ningbo No. 6 Hospital, Ningbo University, Ningbo 315040, China
| | - Liang Wang
- Department of Orthopedics, Orthopaedic Hospital of Guangdong Province, the Third Affiliated Hospital of Southern Medical University, Academy of Orthopaedics of Guangdong Province, Guangzhou 510630, Guangdong, China
| | - Bruce K Foster
- Department of Orthopaedic Surgery, Flinders Medical Centre, Bedford Park, SA 5042, Australia
| | - Jiake Xu
- School of Pathology and Laboratory Medicine, University of Western Australia, Nedlands, WA 6009, Australia
| | - Cory J Xian
- University of South Australia, UniSA Clinical and Health Sciences, Adelaide, SA 5001, Australia; Department of Orthopedics, Tongji Hospital, Tongji University, Shanghai 200065, China; Ningbo No. 6 Hospital, Ningbo University, Ningbo 315040, China.
| |
Collapse
|
9
|
Erickson C, Stager M, Riederer M, Payne KA, Krebs M. Emulsion-free chitosan-genipin microgels for growth plate cartilage regeneration. J Biomater Appl 2021; 36:289-296. [PMID: 33709832 DOI: 10.1177/0885328221999894] [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: 11/17/2022]
Abstract
The growth plate is a cartilage tissue near the ends of children's long bones and is responsible for bone growth. Injury to the growth plate can result in the formation of a 'bony bar' which can span the growth plate and result in bone growth abnormalities in children. Biomaterials such as chitosan microgels could be a potential treatment for growth plate injuries due to their chondrogenic properties, which can be enhanced through loading with biologics. They are commonly fabricated via an emulsion method, which involves solvent rinses that are cytotoxic. Here, we present a high throughput, non-cytotoxic, non-emulsion-based method to fabricate chitosan-genipin microgels. Chitosan was crosslinked with genipin to form a hydrogel network, and then pressed through a syringe filter using mesh with various pore sizes to produce a range of microgel particle sizes. The microgels were then loaded with chemokines and growth factors and their release was studied in vitro. To assess the applicability of the microgels for growth plate cartilage regeneration, they were injected into a rat growth plate injury. They led to increased cartilage repair tissue and were fully degraded by 28 days in vivo. This work demonstrates that chitosan microgels can be fabricated without solvent rinses and demonstrates their potential for the treatment of growth plate injuries.
Collapse
Affiliation(s)
| | | | | | - Karin A Payne
- University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | | |
Collapse
|
10
|
Abstract
BACKGROUND Physis is the weakest structure in the skeleton of a child and a frequent site of an injury or fracture. A physeal fracture presents a unique challenge in the management as the sequalae of such an injury could lead to growth disturbances. METHODS In this review, mainly focussing on traumatic physeal injuries, the authors discuss the applied anatomy, different fracture patterns, clinical assessment and management of physeal fractures in children. RESULTS Discussion on acute physeal injuries as well as physeal arrest and approach to its management is presented. Past attempts for treatment of physeal injuries and recent advances in their management is also discussed. CONCLUSION The ideal approach to treat physeal injuries should take into account the location of injury, age of the patient, fracture type and growth potential of the involved physis. Prompt diagnosis and physeal-respecting treatment techniques are important.
Collapse
|
11
|
Feng W, Tu X. [All-trans retinoic acid and vascular endothelial growth factor induced the directional osteogenic differentiation of mouse embryonic fibroblasts]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2020; 34:246-255. [PMID: 32030959 DOI: 10.7507/1002-1892.201906099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective To investigate the effect of all-trans retinoic acid (ATRA) and vascular endothelial growth factor (VEGF) on the osteogenic differentiation of mouse embryonic fibroblasts (MEFs). Methods The fetal mice in the uterus of NIH pregnant mice (pregnancy 12-15 days) were collected, and the heads and hearts etc. were removed. Then MEFs were separated from the rest tissues of the fetal mice and cultured by trypsin digestion and adherent culture. HEK-293 cells were used to obtain recombinant adenovirus-red fluorescent protein (Ad-RFP) and Ad-VEGF by repeatedly freezing and thawing. Alkaline phosphatase (ALP) staining and quantitative detection were used to detect the changes of ALP activity in MEFs applied with ATRA or VEGF alone or combined use of ATRA and VEGF on the 3rd and 5th days. The cultured 3rd to 4th generation MEFs were divided into groups A, B, C, and D, and were cultured with DMSO plus Ad-RFP, ATRA, Ad-VEGF, ATRA plus Ad-VEGF, respectively. Real-time fluorescence quantitative PCR (qRT-PCR) was used to detect the mRNA expressions of osteogenic markers including ALP, collagen type Ⅰ, osteopontin (OPN), osteocalcin (OCN), and angiogenic markers including VEGF, angiopoietin 1 (ANGPT1), and endomucin (EMCN) on the 3rd and 7th days. Immunohistochemical staining was used to detect the protein expressions of OPN and VEGF on the 3rd, 5th, and 7th days in each group. Alizarin red staining was used to detect calcium salt deposition levels in each group at 14 and 21 days after osteogenic induction. Fifteen athymic female nude mice aged 4 to 6 weeks were randomly divided into 3 groups and 5 mice in each group. Then MEFs treated with ATRA, Ad-VEGF, and ATRA plus Ad-VEGF were injected subcutaneously into the dorsal and ventral sides, respectively. X-ray observation, gross observation, and histological staining (Masson, HE, and Safranin O-fast green stainings) were performed at 5 weeks after implantation to observe the ectopic bone formation in nude mice in each group. Results MEFs were successfully isolated and cultured. The acquired Ad-RFP and Ad-VEGF were successfully transfected into MEFs with approximately 50% and 20% transfection rates. ALP activity tests showed that ATRA or Ad-VEGF could enhance ALP activity in MEFs ( P<0.05), and ATRA had a stronger effect than Ad-VEGF; and the combined use of ATRA and Ad-VEGF significantly enhanced the ALP activity in MEFs ( P<0.05). qRT-PCR test showed that the combined use of ATRA and Ad-VEGF also increased the relative mRNA expressions of early-stage osteogenesis-related markers ALP, OPN, and collagen type I ( P<0.05); the relative mRNA expressions of angiogenesis-related markers VEGF, EMCN, and ANGPT1 increased at 7 days ( P<0.05). Immunohistochemical staining showed that ATRA combined with Ad-VEGF not only enhanced OPN protein expression, but also increased VEGF protein expression on 7th day. Alizarin red staining showed that the application of ATRA or Ad-VEGF induced weak calcium salt deposition, and the combined use of ATRA and Ad-VEGF significantly enhanced the effect of calcium salt deposition in MEFs. The results of implantation experiments in nude mice showed that X-ray films observation revealed obvious bone mass in the ATRA plus Ad-VEGF group, and the bone was larger than that in other groups. Histological staining showed a large amount of collagen and mature bone trabeculae, bone matrix formation, and gray-green collagen bone tissue, indicating that the combined use of ATRA and Ad-VEGF significantly enhanced the osteogenic effect of MEFs in vivo. Conclusion The combined use of ATRA and VEGF can induce the osteogenic differentiation of MEFs.
Collapse
Affiliation(s)
- Wei Feng
- Life Science Institute, Chongqing Medical University, Chongqing, 400016, P.R.China
| | - Xiaolin Tu
- Life Science Institute, Chongqing Medical University, Chongqing, 400016, P.R.China
| |
Collapse
|
12
|
Gruber HE, Ashraf N, Cox MD, Ingram JA, Templin M, Wattenbarger JM. Experimental Induction of Physeal Injuries by Fracture, Drill, and Ablation Techniques: Analyses of Immunohistochemical Findings. J Pediatr Orthop 2019; 39:479-486. [PMID: 31503237 DOI: 10.1097/bpo.0000000000001093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Although physeal fractures and physeal bars can result in significant clinical consequences to growth and development of the injured physis, little orthopaedic research has focused upon this topic. Our objective was to extend a previously developed rat model to examine the immunohistochemical features following surgical application of techniques disrupting the physis. METHODS Physes were surgically disrupted using fracture (control), epiphyseal scrape (ES), or epiphyseal drill (ED). After 1, 3, 6, 10, or 21 days, animals were euthanized, sites processed for histology and immunohistochemical localization of vascular endothelial growth factor (VEGF), Factor VIII, Sox-9, PTHrP (parathyroid hormone-related protein) and PTHrP-R (parathyroid hormone-related protein receptor) in resting, proliferative, and hypertrophic physeal zones. Incidence of physeal bars, vertical septa and islands within the metaphysis was quantified. Semiquantitative analysis of immunohistochemistry was performed. RESULTS Physeal bars, vertical septa, and displaced cartilage islands were present each of the surgical treatments. Fisher's exact test showed a statistically significant increase in the presence of physeal bars (P=0.002) and vertical septa (P=0.012) in the ED group at 10 and 21 days. Analysis of VEGF showed significant differences among the surgical treatments involving the resting zone, and the proliferative zone for days 1, 6, and 21 (P≤0.02) with greater mean scores present in the fracture (control) group, followed by the ED group; the lowest scores were present in the ES group. PTHrP-R immunolocalization showed significant differences among treatments in the hypertrophic zone at days 6 and 21 (P=0.022 and 0.044, respectively). CONCLUSIONS On the basis of the type of surgical treatment, results show significant differences in the presence of VEGF (reflecting the vascular bed) in the resting and proliferating zones at days 1, 6, and 21. VEGF localization was less abundant in the ED group (which had more physeal bars), suggesting that lack of vascular ingrowth plays a role in physeal bar formation. CLINICAL RELEVANCE Basic science data presented here provide insight into the importance of the various regions of the physis and its repair and continued growth after physeal fracture. We suggest that a better understanding of the cellular basis of physeal arrest following physeal fracture may have future relevance for the development of treatments to prevent or correct arrest.
Collapse
Affiliation(s)
| | | | | | | | - Megan Templin
- Dickson Advanced Analytics, Carolinas Medical Center, Charlotte, NC
| | | |
Collapse
|
13
|
Drenkard LMM, Kupratis ME, Li K, Gerstenfeld LC, Morgan EF. Local Changes to the Distal Femoral Growth Plate Following Injury in Mice. J Biomech Eng 2019; 139:2627000. [PMID: 28492928 DOI: 10.1115/1.4036686] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Injury to the growth plate is associated with growth disturbances, most notably premature cessation of growth. The goal of this study was to identify spatial changes in the structure and composition of the growth plate in response to injury to provide a foundation for developing therapies that minimize the consequences for skeletal development. We used contrast-enhanced microcomputed tomography (CECT) and histological analyses of a murine model of growth plate injury to quantify changes in the cartilaginous and osseous tissue of the growth plate. To distinguish between local and global changes, the growth plate was divided into regions of interest near to and far from the injury site. We noted increased thickness and CECT attenuation (a measure correlated with glycosaminoglycan (GAG) content) near the injury, and increased tissue mineral density (TMD) of bone bridges within the injury site, compared to outside the injury site and contralateral growth plates. Furthermore, we noted disruption of the normal zonal organization of the physis. The height of the hypertrophic zone was increased at the injury site, and the relative height of the proliferative zone was decreased across the entire injured growth plate. These results indicate that growth plate injury leads to localized disruption of cellular activity and of endochondral ossification. These local changes in tissue structure and composition may contribute to the observed retardation in femur growth. In particular, the changes in proliferative and hypertrophic zone heights seen following injury may impact growth and could be targeted when developing therapies for growth plate injury.
Collapse
|
14
|
Su YW, Chim SM, Zhou L, Hassanshahi M, Chung R, Fan C, Song Y, Foster BK, Prestidge CA, Peymanfar Y, Tang Q, Butler LM, Gronthos S, Chen D, Xie Y, Chen L, Zhou XF, Xu J, Xian CJ. Osteoblast derived-neurotrophin‑3 induces cartilage removal proteases and osteoclast-mediated function at injured growth plate in rats. Bone 2018; 116:232-247. [PMID: 30125729 PMCID: PMC6550307 DOI: 10.1016/j.bone.2018.08.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 07/25/2018] [Accepted: 08/14/2018] [Indexed: 01/08/2023]
Abstract
Faulty bony repair causes dysrepair of injured growth plate cartilage and bone growth defects in children; however, the underlying mechanisms are unclear. Recently, we observed the prominent induction of neurotrophin‑3 (NT-3) and its important roles as an osteogenic and angiogenic factor promoting the bony repair. The current study investigated its roles in regulating injury site remodelling. In a rat tibial growth plate drill-hole injury repair model, NT-3 was expressed prominently in osteoblasts at the injury site. Recombinant NT-3 (rhNT-3) systemic treatment enhanced, but NT-3 immunoneutralization attenuated, expression of cartilage-removal proteases (MMP-9 and MMP-13), presence of bone-resorbing osteoclasts and expression of osteoclast protease cathepsin K, and remodelling at the injury site. NT-3 was also highly induced in cultured mineralizing rat bone marrow stromal cells, and the conditioned medium augmented osteoclast formation and resorptive activity, an ability that was blocked by presence of anti-NT-3 antibody. Moreover, NT-3 and receptor TrkC were induced during osteoclastogenesis, and rhNT-3 treatment activated TrkC downstream kinase Erk1/2 in differentiating osteoclasts although rhNT-3 alone did not affect activation of osteoclastogenic transcription factors NF-κB or NFAT in RAW264.7 osteoclast precursor cells. Furthermore, rhNT-3 treatment increased, but NT-3 neutralization reduced, expression of osteoclastogenic cytokines (RANKL, TNF-α, and IL-1) in mineralizing osteoblasts and in growth plate injury site, and rhNT-3 augmented the induction of these cytokines caused by RANKL treatment in RAW264.7 cells. Thus, injury site osteoblast-derived NT-3 is important in promoting growth plate injury site remodelling, as it induces cartilage proteases for cartilage removal and augments osteoclastogenesis and resorption both directly (involving activing Erk1/2 and substantiating RANKL-induced increased expression of osteoclastogenic signals in differentiating osteoclasts) and indirectly (inducing osteoclastogenic signals in osteoblasts).
Collapse
Affiliation(s)
- Yu-Wen Su
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, SA 5001, Australia.
| | - Shek Man Chim
- School of Pathology and Laboratory Medicine, University of Western Australia, Nedlands, WA 6009, Australia.
| | - Lin Zhou
- School of Pathology and Laboratory Medicine, University of Western Australia, Nedlands, WA 6009, Australia.
| | - Mohammadhossein Hassanshahi
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, SA 5001, Australia.
| | - Rosa Chung
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, SA 5001, Australia.
| | - Chiaming Fan
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, SA 5001, Australia
| | - Yunmei Song
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, SA 5001, Australia.
| | - Bruce K Foster
- Department of Orthopaedic Surgery, Women's and Children's Hospital, North Adelaide, SA 5006, Australia.
| | - Clive A Prestidge
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, SA 5001, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes Campus, Mawson Lakes 5095, Australia.
| | - Yaser Peymanfar
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, SA 5001, Australia.
| | - Qian Tang
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, SA 5001, Australia.
| | - Lisa M Butler
- University of Adelaide Schools of Medicine and Medical Sciences, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.
| | - Stan Gronthos
- University of Adelaide Schools of Medicine and Medical Sciences, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.
| | - Di Chen
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL 60612, USA.
| | - Yangli Xie
- State Key Laboratory of Trauma, Burns and Combined Injury, Center of Bone Metabolism and Repair, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Lin Chen
- State Key Laboratory of Trauma, Burns and Combined Injury, Center of Bone Metabolism and Repair, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Xin-Fu Zhou
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, SA 5001, Australia.
| | - Jiake Xu
- School of Pathology and Laboratory Medicine, University of Western Australia, Nedlands, WA 6009, Australia.
| | - Cory J Xian
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, SA 5001, Australia.
| |
Collapse
|
15
|
Alterations of Vascular Endothelial Growth Factor A Expression and Microvessel Density Associated With Polypropylene Vaginal Mesh. Female Pelvic Med Reconstr Surg 2018; 26:73-79. [PMID: 29683889 DOI: 10.1097/spv.0000000000000593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECTIVE Vaginal mesh exposure is the most common complication from mesh use in prolapse and incontinence surgery. Angiogenesis is an essential component of tissue healing, and defective angiogenesis plays a role in chronic wounds. We hypothesized that patients with exposures will have impaired angiogenesis as evidenced by altered tissue vascular endothelial growth factor A (VEGFA) expression and microvessel density. The study objective was to compare angiogenesis in women with vaginal mesh exposures, those with vaginal mesh without exposures, and in women who were mesh-naive. METHODS Patients undergoing polypropylene mesh removal and patients without mesh undergoing urinary incontinence or prolapse surgery were recruited. Full-thickness vaginal epithelial biopsies were obtained. The relative abundance of VEGFA RNA was measured with reverse transcription-polymerase chain reaction. The VEGFA and CD31 immunohistochemistry were also performed. RESULTS Ninety-two subjects were enrolled and biopsied. Mean age (SD) was 57.2 (12.8) years, 16 (17.4%) were smokers, and 68 (73.9%) were postmenopausal.The VEGFA RNA expression did not differ between subjects with mesh exposure and with mesh but no exposure (P = 0.89). However, compared with subjects with no mesh, vaginal VEGFA expression was decreased in subjects with any implanted mesh (relative expression, 0.72; P = 0.02). Microvessel density was increased in subjects with mesh exposure compared with subjects with no mesh (P < 0.01). The VEGFA expression by immunohistochemistry was significantly lower in postmenopausal subjects without estrogen treatment compared with premenopausal and postmenopausal subjects being treated with estrogen (P = 0.02). CONCLUSIONS The presence of polypropylene mesh and hormonal status are associated with evidence of altered angiogenesis.
Collapse
|
16
|
Kauschke V, Gebert A, Calin M, Eckert J, Scheich S, Heiss C, Lips KS. Effects of new beta-type Ti-40Nb implant materials, brain-derived neurotrophic factor, acetylcholine and nicotine on human mesenchymal stem cells of osteoporotic and non osteoporotic donors. PLoS One 2018; 13:e0193468. [PMID: 29489907 PMCID: PMC5873971 DOI: 10.1371/journal.pone.0193468] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 02/12/2018] [Indexed: 01/14/2023] Open
Abstract
Introduction Treatment of osteoporotic fractures is still challenging and an urgent need
exists for new materials, better adapted to osteoporotic bone by adjusted
Young’s modulus, appropriate surface modification and pharmaceuticals. Materials and methods Titanium-40-niobium alloys, mechanically ground or additionally etched and
titanium-6-aluminium-4-vanadium were analyzed in combination with
brain-derived neurotrophic factor, acetylcholine and nicotine to determine
their effects on human mesenchymal stem cells in vitro over
21 days using lactate dehydrogenase and alkaline phosphatase assays, live
cell imaging and immunofluorescence microscopy. Results Cell number of human mesenchymal stem cells of osteoporotic donors was
increased after 14 d in presence of ground titanium-40-niobium or
titanium-6-aluminium-4-vanadium, together with brain-derived neurotrophic
factor. Cell number of human mesenchymal stem cells of non osteoporotic
donors increased after 21 d in presence of titanium-6-aluminium-4-vanadium
without pharmaceuticals. No significant increase was measured for ground or
etched titanium-40-niobium after 21 d. Osteoblast differentiation of
osteoporotic donors was significantly higher than in non osteoporotic donors
after 21 d in presence of etched, ground titanium-40-niobium or
titanium-6-aluminium-4-vanadium accompanied by all pharmaceuticals tested.
In presence of all alloys tested brain-derived neurotrophic factor,
acetylcholine and nicotine increased differentiation of cells of
osteoporotic donors and accelerated it in non osteoporotic donors. Conclusion We conclude that ground titanium-40-niobium and brain-derived neurotrophic
factor might be most suitable for subsequent in vivo
testing.
Collapse
Affiliation(s)
- Vivien Kauschke
- Experimental Trauma Surgery, Justus-Liebig-University Giessen, Giessen,
Germany
- * E-mail:
| | - Annett Gebert
- Leibniz Institute for Solid State and Materials Research Dresden,
Dresden, Germany
| | - Mariana Calin
- Leibniz Institute for Solid State and Materials Research Dresden,
Dresden, Germany
| | - Jürgen Eckert
- Erich Schmid Institute of Materials Science, Austrian Academy of
Sciences, Leoben, Austria
- Department Materials Physics, Montanuniversität Leoben, Leoben,
Austria
| | - Sebastian Scheich
- Experimental Trauma Surgery, Justus-Liebig-University Giessen, Giessen,
Germany
| | - Christian Heiss
- Experimental Trauma Surgery, Justus-Liebig-University Giessen, Giessen,
Germany
- Department of Trauma Hand and Reconstructive Surgery, University Hospital
of Giessen-Marburg, Campus: Giessen, Giessen, Germany
| | - Katrin Susanne Lips
- Experimental Trauma Surgery, Justus-Liebig-University Giessen, Giessen,
Germany
| |
Collapse
|
17
|
Zhang D, Cao N, Zhou S, Chen Z, Zhang X, Zhu W. The enhanced angiogenesis effect of VEGF-silk fibroin nanospheres-BAMG scaffold composited with adipose derived stem cells in a rabbit model. RSC Adv 2018; 8:15158-15165. [PMID: 35541334 PMCID: PMC9080003 DOI: 10.1039/c7ra11610a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 04/03/2018] [Indexed: 11/21/2022] Open
Abstract
We report a study to determine whether a vascular endothelial growth factor (VEGF)-silk fibroin (SF) nanospheres-bladder acellular matrix graft (BAMG) scaffold composited with adipose derived stem cells (ADSCs) could enhance angiogenesis in bladder regeneration in rabbits. Rabbit ADSCs were isolated and identified by flow cytometry. The morphology and release behaviour of VEGF-SF nanospheres were detected. After the composite scaffolds were successfully used in bladder reconstruction, the bladder capacity, H&E staining and immunohistochemical staining were studied at different time points. ADSCs exerts high expression rates of CD29, CD90, and CD44, accompanied with low expression rates of CD34 and CD45. SF nanospheres with diameters of 200–1000 nm were prepared to load VEGF, and they contributed to maintain the release of VEGF. The reconstructed bladder with VEGF-SF nanospheres-BAMG plus ADSCs had more regular smooth muscle tissue and blood vessels. Moreover, instead of differentiating into epithelial or vascular endothelial cells, ADSCs may be more likely to provide additional cytokines to enhance angiogenesis in the bladder regeneration process. The tissue engineered bladder constructed by BAMG modified by VEGF-SF nanospheres possessed high bio-compatibility and an enhanced angiogenesis effect, and could be used as an ideal biological material to repair bladder defects after being composited with ADSCs. The adipose derived stem cells (ADSCs) was composited with vascular endothelial growth factor (VEGF)-silk fibroin (SF) nanospheres-bladder acellular matrix graft (BAMG) scaffold to repair bladder defect in rabbits.![]()
Collapse
Affiliation(s)
- Dongliang Zhang
- Department of Urology
- Shanghai Sixth People's Hospital
- School of Medicine
- Shanghai Jiaotong University
- Shanghai 200233
| | - Nailong Cao
- Department of Urology
- Shanghai Sixth People's Hospital
- School of Medicine
- Shanghai Jiaotong University
- Shanghai 200233
| | - Shukui Zhou
- Department of Urology
- Shanghai Sixth People's Hospital
- School of Medicine
- Shanghai Jiaotong University
- Shanghai 200233
| | - Zhong Chen
- Department of Urology
- Shanghai Sixth People's Hospital
- School of Medicine
- Shanghai Jiaotong University
- Shanghai 200233
| | - Xinru Zhang
- Department of Urology
- Shanghai Sixth People's Hospital
- School of Medicine
- Shanghai Jiaotong University
- Shanghai 200233
| | - Weidong Zhu
- Department of Urology
- Shanghai Sixth People's Hospital
- School of Medicine
- Shanghai Jiaotong University
- Shanghai 200233
| |
Collapse
|
18
|
Ribeiro LGR, Silva JF, Ocarino NDM, de Souza CA, de Melo EG, Serakides R. Excess Maternal Thyroxine Alters the Proliferative Activity and Angiogenic Profile of Growth Cartilage of Rats at Birth and Weaning. Cartilage 2018; 9:89-103. [PMID: 29219024 PMCID: PMC5724671 DOI: 10.1177/1947603516684587] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Objective The aim of this study was to unravel the mechanisms by which thyroxine affects skeletal growth by evaluating proliferative activity and angiogenic profile of growth cartilage of neonatal and weanling rats. Methods Sixteen adult Wistar rats were equally divided into 2 groups: control and treated with thyroxine during pregnancy and lactation. The weight, measurement of plasma free T4 and thyroids, femurs' histomorphometric analysis, and proliferative activity and angiogenic profile by immunohistochemical or real-time reverse transcriptase-polymerase chain reaction in growth cartilage was performed. Data were analyzed using Student's t test. Results The free T4 was significantly higher in the treated rats. However, the height of the follicular epithelium of the thyroid in newborns was significantly lower in the treated group. The excess maternal thyroxine significantly reduced the body weight and length of the femur in the offspring but significantly increased the thickness of trabecular bone and changed the height of the zones of the growth plate. Furthermore, excess maternal thyroxine reduced cell proliferation and vascular endothelial growth factor (VEGF) expression in the growth cartilage of newborn and 20-day-old rats ( P < 0.05). There was also a reduction in the immunohistochemical expression of Tie2 in the cartilaginous epiphysis of the newborns and FLK-1 in the articular cartilage of 20-day-old rats. No significant difference was observed in Ang2 expression. Conclusions The excess maternal thyroxine during pregnancy and lactation reduced endochondral bone growth in the progeny and reduced the proliferation rate and VEGF, Flk-1, and Tie2 expression in the cartilage of growing rats without altering the mRNA expression of Ang1 and Ang2.
Collapse
|
19
|
Chiari C, Walzer S, Stelzeneder D, Schreiner M, Windhager R. [Therapeutic utilization of stem cells in orthopedics]. DER ORTHOPADE 2017; 46:1077-1090. [PMID: 28986619 DOI: 10.1007/s00132-017-3475-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Stem cells are becoming increasingly more important in the field of regenerative medicine. Adult mesenchymal stem cells (MSCs) are harvested predominantly from bone marrow or adipose tissue, are already being used in the clinical setting and have a low potential for side effects. In orthopedics, experience has been gained in the treatment of bone defects, non-unions, cartilage defects, osteoarthritis and tendon pathologies. The current data are derived from case studies and randomized controlled trials are missing; therefore, there are many open questions concerning the optimal cell source, number of cells, administration technique (e.g. injections and matrices) or combinations with growth factors; however, it is evident from the data that MSCs have a positive effect on tissue regeneration and are safe to use.
Collapse
Affiliation(s)
- C Chiari
- Universitätsklinik für Orthopädie, Medizinische Universität Wien, Währinger Gürtel 18-20, 1090, Wien, Österreich.
| | - S Walzer
- Universitätsklinik für Orthopädie, Medizinische Universität Wien, Währinger Gürtel 18-20, 1090, Wien, Österreich
| | - D Stelzeneder
- Universitätsklinik für Orthopädie, Medizinische Universität Wien, Währinger Gürtel 18-20, 1090, Wien, Österreich
| | - M Schreiner
- Universitätsklinik für Orthopädie, Medizinische Universität Wien, Währinger Gürtel 18-20, 1090, Wien, Österreich
| | - R Windhager
- Universitätsklinik für Orthopädie, Medizinische Universität Wien, Währinger Gürtel 18-20, 1090, Wien, Österreich
| |
Collapse
|
20
|
Shaw N, Erickson C, Bryant SJ, Ferguson VL, Krebs MD, Hadley-Miller N, Payne KA. Regenerative Medicine Approaches for the Treatment of Pediatric Physeal Injuries. TISSUE ENGINEERING PART B-REVIEWS 2017; 24:85-97. [PMID: 28830302 DOI: 10.1089/ten.teb.2017.0274] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The physis, or growth plate, is a cartilaginous region at the end of children's long bones that serves as the primary center for longitudinal growth and characterizes the immature skeleton. Musculoskeletal injury, including fracture, infection, malignancy, or iatrogenic damage, has risk of physeal damage. Physeal injuries account for 30% of pediatric fractures and may result in impaired bone growth. Once damaged, cartilage tissue within the physis is often replaced by unwanted bony tissue, forming a "bony bar" that can lead to complications such as complete growth arrest, angular or rotational deformities, and altered joint mechanics. Children with a bony bar occupying <50% of the physis usually undergo bony bar resection and insertion of an interpositional material, such as a fat graft, to prevent recurrence and allow the surrounding uninjured physeal tissue to restore longitudinal bone growth. Clinical success for this procedure is <35% and often the bony bar and associated growth impairments return. Children who are not candidates for bony bar resection due to a physeal bar occupying >50% of their physis undergo corrective osteotomy or bone lengthening procedures. These approaches are complex and have variable success rates. As such, there is a critical need for regenerative approaches to not only prevent initial bony bar formation but also regenerate healthy physeal cartilage following injury. This review describes physeal anatomy, mechanisms of physeal injury, and current treatment options with associated limitations. Furthermore, we provide an overview of the current research using cell-based therapies, growth factors, and biomaterials in the different animal models of injury along with strategic directions for modulating intrinsic injury pathways to inhibit bony bar formation and/or promote physeal tissue formation. Pediatric physeal injuries constitute a unique niche within regenerative medicine for which there is a critical need for research to decrease child morbidity related to this injurious process.
Collapse
Affiliation(s)
- Nichole Shaw
- 1 Department of Orthopedics, University of Colorado Anschutz Medical Campus , Aurora, Colorado
| | - Christopher Erickson
- 1 Department of Orthopedics, University of Colorado Anschutz Medical Campus , Aurora, Colorado.,2 Department of Bioengineering, University of Colorado Anschutz Medical Campus , Aurora, Colorado
| | - Stephanie J Bryant
- 3 Department of Chemical and Biological Engineering, University of Colorado Boulder , Boulder, Colorado.,4 BioFrontiers Institute, University of Colorado Boulder , Boulder, Colorado.,5 Material Science and Engineering Program, University of Colorado Boulder , Boulder, Colorado
| | - Virginia L Ferguson
- 4 BioFrontiers Institute, University of Colorado Boulder , Boulder, Colorado.,5 Material Science and Engineering Program, University of Colorado Boulder , Boulder, Colorado.,6 Department of Mechanical Engineering, University of Colorado Boulder , Boulder, Colorado
| | - Melissa D Krebs
- 7 Department of Chemical and Biological Engineering, Colorado School of Mines , Golden, Colorado.,8 Gates Center for Regenerative Medicine, University of Colorado Anschutz Medical Campus , Aurora, Colorado
| | - Nancy Hadley-Miller
- 1 Department of Orthopedics, University of Colorado Anschutz Medical Campus , Aurora, Colorado
| | - Karin A Payne
- 1 Department of Orthopedics, University of Colorado Anschutz Medical Campus , Aurora, Colorado.,8 Gates Center for Regenerative Medicine, University of Colorado Anschutz Medical Campus , Aurora, Colorado
| |
Collapse
|
21
|
Wang S, Li M, Zhang W, Hua H, Wang N, Zhao J, Ge J, Jiang X, Zhang Z, Ye D, Yang C. Growth differentiation factor 15 promotes blood vessel growth by stimulating cell cycle progression in repair of critical-sized calvarial defect. Sci Rep 2017; 7:9027. [PMID: 28831101 PMCID: PMC5567281 DOI: 10.1038/s41598-017-09210-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 07/21/2017] [Indexed: 11/24/2022] Open
Abstract
Repair of large bone defects remains a challenge for surgeons, tissue engineering represents a promising approach. However, the use of this technique is limited by delayed vascularization in central regions of the scaffold. Growth differentiation factor 15(GDF15) has recently been reported to be a potential angiogenic cytokine and has an ability to promote the proliferation of human umbilical vein endothelial cells(HUVECs). Whether it can be applied for promoting vascularized bone regeneration is still unknown. In this study, we demonstrated that GDF15 augmented the expression of cyclins D1 and E, induced Rb phosphorylation and E2F-1 nuclear translocation, as well as increased HUVECs proliferation. Furthermore, we also observed that GDF15 promoted the formation of functional vessels at an artificially-induced angiogenic site, and remarkably improved the healing in the repair of critical-sized calvarial defects. Our results confirm the essential role of GDF15 in angiogenesis and suggest its potential beneficial use in regenerative medicine.
Collapse
Affiliation(s)
- Shaoyi Wang
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China
| | - Mengyu Li
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China
| | - Wenjie Zhang
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China.,Oral Bioengineering Lab/Regenerative Medicine Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China
| | - Hongfei Hua
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China
| | - Ningtao Wang
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China
| | - Jun Zhao
- Department of Orthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China
| | - Jing Ge
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China
| | - Xinquan Jiang
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China.,Oral Bioengineering Lab/Regenerative Medicine Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China
| | - Zhiyuan Zhang
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China.
| | - Dongxia Ye
- Shanghai Research Institute of Stomatology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China.
| | - Chi Yang
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China.
| |
Collapse
|
22
|
Erickson CB, Shaw N, Hadley-Miller N, Riederer MS, Krebs MD, Payne KA. A Rat Tibial Growth Plate Injury Model to Characterize Repair Mechanisms and Evaluate Growth Plate Regeneration Strategies. J Vis Exp 2017. [PMID: 28715376 DOI: 10.3791/55571] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
A third of all pediatric fractures involve the growth plate and can result in impaired bone growth. The growth plate (or physis) is cartilage tissue found at the end of all long bones in children that is responsible for longitudinal bone growth. Once damaged, cartilage tissue within the growth plate can undergo premature ossification and lead to unwanted bony repair tissue, which forms a "bony bar." In some cases, this bony bar can result in bone growth deformities, such as angular deformities, or it can completely halt longitudinal bone growth. There is currently no clinical treatment that can fully repair an injured growth plate. Using an animal model of growth plate injury to better understand the mechanisms underlying bony bar formation and to identify ways to inhibit it is a great opportunity to develop better treatments for growth plate injuries. This protocol describes how to disrupt the rat proximal tibial growth plate using a drill-hole defect. This small animal model reliably produces a bony bar and can result in growth deformities similar to those seen in children. This model allows for investigation into the molecular mechanisms of bony bar formation and serves as a means to test potential treatment options for growth plate injuries.
Collapse
Affiliation(s)
- Christopher B Erickson
- Department of Bioengineering, Department of Orthopedics, University of Colorado Anschutz Medical Campus
| | - Nichole Shaw
- Department of Orthopedics, University of Colorado Anschutz Medical Campus
| | | | - Michael S Riederer
- Department of Chemical & Biological Engineering, Colorado School of Mines
| | - Melissa D Krebs
- Department of Chemical & Biological Engineering, Colorado School of Mines
| | - Karin A Payne
- Department of Orthopedics, Gates Center for Regenerative Medicine, University of Colorado Anschutz Medical Campus;
| |
Collapse
|
23
|
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: 39] [Impact Index Per Article: 5.6] [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.
Collapse
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
| |
Collapse
|
24
|
Su YW, Chung R, Ruan CS, Chim SM, Kuek V, Dwivedi PP, Hassanshahi M, Chen KM, Xie Y, Chen L, Foster BK, Rosen V, Zhou XF, Xu J, Xian CJ. Neurotrophin-3 Induces BMP-2 and VEGF Activities and Promotes the Bony Repair of Injured Growth Plate Cartilage and Bone in Rats. J Bone Miner Res 2016; 31:1258-74. [PMID: 26763079 DOI: 10.1002/jbmr.2786] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 01/06/2016] [Accepted: 01/08/2016] [Indexed: 12/20/2022]
Abstract
Injured growth plate is often repaired by bony tissue causing bone growth defects, for which the mechanisms remain unclear. Because neurotrophins have been implicated in bone fracture repair, here we investigated their potential roles in growth plate bony repair in rats. After a drill-hole injury was made in the tibial growth plate and bone, increased injury site mRNA expression was observed for neurotrophins NGF, BDNF, NT-3, and NT-4 and their Trk receptors. NT-3 and its receptor TrkC showed the highest induction. NT-3 was localized to repairing cells, whereas TrkC was observed in stromal cells, osteoblasts, and blood vessel cells at the injury site. Moreover, systemic NT-3 immunoneutralization reduced bone volume at injury sites and also reduced vascularization at the injured growth plate, whereas recombinant NT-3 treatment promoted bony repair with elevated levels of mRNA for osteogenic markers and bone morphogenetic protein (BMP-2) and increased vascularization and mRNA for vascular endothelial growth factor (VEGF) and endothelial cell marker CD31 at the injured growth plate. When examined in vitro, NT-3 promoted osteogenesis in rat bone marrow stromal cells, induced Erk1/2 and Akt phosphorylation, and enhanced expression of BMPs (particularly BMP-2) and VEGF in the mineralizing cells. It also induced CD31 and VEGF mRNA in rat primary endothelial cell culture. BMP activity appears critical for NT-3 osteogenic effect in vitro because it can be almost completely abrogated by co-addition of the BMP inhibitor noggin. Consistent with its angiogenic effect in vivo, NT-3 promoted angiogenesis in metatarsal bone explants, an effect abolished by co-treatment with anti-VEGF. This study suggests that NT-3 may be an osteogenic and angiogenic factor upstream of BMP-2 and VEGF in bony repair, and further studies are required to investigate whether NT-3 may be a potential target for preventing growth plate faulty bony repair or for promoting bone fracture healing. © 2016 American Society for Bone and Mineral Research.
Collapse
Affiliation(s)
- Yu-Wen Su
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, Australia
| | - Rosa Chung
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, Australia
| | - Chun-Sheng Ruan
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, Australia
| | - Shek Man Chim
- School of Pathology and Laboratory Medicine, University of Western Australia, Nedlands, Australia
| | - Vincent Kuek
- School of Pathology and Laboratory Medicine, University of Western Australia, Nedlands, Australia
| | - Prem P Dwivedi
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, Australia
| | - Mohammadhossein Hassanshahi
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, Australia
| | - Ke-Ming Chen
- Institute of Orthopaedics, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou, China
| | - Yangli Xie
- Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns, and Combined Injury, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Lin Chen
- Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns, and Combined Injury, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Bruce K Foster
- Department of Orthopaedic Surgery, Women's and Children's Hospital, North Adelaide, Australia
| | - Vicki Rosen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
| | - Xin-Fu Zhou
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, Australia
| | - Jiake Xu
- School of Pathology and Laboratory Medicine, University of Western Australia, Nedlands, Australia
| | - Cory J Xian
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, Australia
| |
Collapse
|
25
|
Vásquez B, Olate S, Cantín M, Sandoval C, Fariña R, del Sol M. Histopathological analysis of unilateral condylar hyperplasia: difficulties in diagnosis and characterization of the disease. Int J Oral Maxillofac Surg 2016; 45:601-9. [DOI: 10.1016/j.ijom.2015.11.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 11/25/2015] [Accepted: 11/27/2015] [Indexed: 10/22/2022]
|
26
|
Extracellular signaling molecules to promote fracture healing and bone regeneration. Adv Drug Deliv Rev 2015; 94:3-12. [PMID: 26428617 DOI: 10.1016/j.addr.2015.09.008] [Citation(s) in RCA: 193] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 09/12/2015] [Accepted: 09/16/2015] [Indexed: 12/31/2022]
Abstract
To date, the delivery of signaling molecules for bone regeneration has focused primarily on factors that directly affect the bone formation pathways (osteoinduction) or that serve to increase the number of bone forming progenitor cells. The first commercialized growth factors approved for bone regeneration, Bone Morphogenetic Protein 2 and 7 (BMP2 and BMP7), are direct inducers of osteoblast differentiation. As well, newer generations of potential therapeutics that target the Wnt signaling pathway are also direct osteoinducers. On the other hand, some signaling molecules may play a role as mitogens and serve to increase the number of bone producing cells or may increase vascularization. This is true for factors such as Platelet Derived Growth Factor (PDGF) or Fibroblast Growth Factor (FGF). Vascular Endothelial Growth Factor (VEGF) likely has a special role. Not only does it induce new blood vessel formation, it also has direct effects on osteoblasts through endothelial cell-based BMP production. In addition to these pathways that classically have targeted bone production, there are also opportunities to target other aspects of the bone healing process such as inflammation, vascularization, and cell ingress to the fracture site. Bone regeneration is highly complex with defined, yet overlapping stages of healing. We will review established and novel extracellular signaling factors associated with various stages of fracture healing that could be targeted to promote enhanced bone regeneration. Importantly, multiple potential cell and tissues could be targeted to enhance healing in addition to focusing solely on osteoinductive therapeutics.
Collapse
|
27
|
Yi R, Wang R, Sun P, Zhao X. Antioxidant-mediated preventative effect of Dragon-pearl tea crude polyphenol extract on reserpine-induced gastric ulcers. Exp Ther Med 2015; 10:338-344. [PMID: 26170959 DOI: 10.3892/etm.2015.2473] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 04/08/2015] [Indexed: 02/07/2023] Open
Abstract
Dragon-pearl tea is a type of green tea commonly consumed in Southwest China. In the present study, the antioxidative and anti-gastric ulcer effects of Dragon-pearl tea crude polyphenols (DTCP) were determined in vitro and in vivo. Treatment with 25, 50 or 100 µg/ml DTCP resulted in notable antioxidant effects in vitro, which manifested as 2,2-diphenyl-1-picrylhydrazyl and OH radical-scavenging activity. Furthermore, using an in vivo mouse model, DTCP was shown to reduce the gastric ulcer area in the stomach, in which the 200 mg/kg DTCP dose exhibited the most marked effect, with a gastric ulcer index inhibitory rate of 72.63%. In addition, DTCP was demonstrated to improve stomach acidity conditions in vivo by increasing the pH and reducing the level of gastric juice, as compared with the reserpine-induced gastric ulcer control mice. Furthermore, DTCP altered the serum levels of a number of oxidation-related biomolecules, including superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), malondialdehyde (MDA), lipid peroxidation (LPO) and catalase (CAT), to subsequently exert an anti-gastric ulcer effect. Treatment with 50, 100 and 200 mg/kg DTCP increased the SOD, GSH-Px and CAT levels and reduced the MDA and LPO levels in the mouse model of gastric ulcers. These serum level alterations resulted in the modified serum levels of prostaglandin E2 (PGE2) and nitric oxide (NO), which are associated with gastric mucosal protection. A reverse transcription-quantitative polymerase chain reaction (RT-PCR) assay is a molecular biology experiment which could determine the changes of mRNA in tissues. Using the RT-PCR assay, DTCP was observed to increase the mRNA expression levels of certain genes associated with gastric ulcers: Epidermal growth factor, epidermal growth factor receptor, vascular endothelial growth factor and vascular endothelial growth factor receptor 1, while reducing gastrin expression levels. Therefore, the results indicated that DTCP induced a marked preventative effect on reserpine-induced gastric ulcers in vivo, as a result of its antioxidative capacity.
Collapse
Affiliation(s)
- Ruokun Yi
- Department of Food Science and Nutrition, Pusan National University, Busan 609-735, Republic of Korea
| | - Rui Wang
- Department of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, P.R. China
| | - Peng Sun
- Department of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, P.R. China
| | - Xin Zhao
- Department of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, P.R. China
| |
Collapse
|
28
|
Chung R, Xian CJ. Recent research on the growth plate: Mechanisms for growth plate injury repair and potential cell-based therapies for regeneration. J Mol Endocrinol 2014; 53:T45-61. [PMID: 25114207 DOI: 10.1530/jme-14-0062] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Injuries to the growth plate cartilage often lead to bony repair, resulting in bone growth defects such as limb length discrepancy and angulation deformity in children. Currently utilised corrective surgeries are highly invasive and limited in their effectiveness, and there are no known biological therapies to induce cartilage regeneration and prevent the undesirable bony repair. In the last 2 decades, studies have investigated the cellular and molecular events that lead to bony repair at the injured growth plate including the identification of the four phases of injury repair responses (inflammatory, fibrogenic, osteogenic and remodelling), the important role of inflammatory cytokine tumour necrosis factor alpha in regulating downstream repair responses, the role of chemotactic and mitogenic platelet-derived growth factor in the fibrogenic response, the involvement and roles of bone morphogenic protein and Wnt/B-catenin signalling pathways, as well as vascular endothelial growth factor-based angiogenesis during the osteogenic response. These new findings could potentially lead to identification of new targets for developing a future biological therapy. In addition, recent advances in cartilage tissue engineering highlight the promising potential for utilising multipotent mesenchymal stem cells (MSCs) for inducing regeneration of injured growth plate cartilage. This review aims to summarise current understanding of the mechanisms for growth plate injury repair and discuss some progress, potential and challenges of MSC-based therapies to induce growth plate cartilage regeneration in combination with chemotactic and chondrogenic growth factors and supporting scaffolds.
Collapse
Affiliation(s)
- Rosa Chung
- School of Pharmacy and Medical SciencesSansom Institute for Health Research, University of South Australia, City East Campus, GPO Box 2471, Adelaide, South Australia 5001, Australia
| | - Cory J Xian
- School of Pharmacy and Medical SciencesSansom Institute for Health Research, University of South Australia, City East Campus, GPO Box 2471, Adelaide, South Australia 5001, Australia
| |
Collapse
|