1
|
Sung HH, Kwon HH, Stephan C, Reynolds SM, Dai Z, Van der Kraan PM, Caird MS, Blaney Davidson EN, Kozloff KM. Sclerostin antibody enhances implant osseointegration in bone with Col1a1 mutation. Bone 2024; 186:117167. [PMID: 38876270 DOI: 10.1016/j.bone.2024.117167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 06/06/2024] [Accepted: 06/10/2024] [Indexed: 06/16/2024]
Abstract
We evaluated the potential of sclerostin antibody (SclAb) therapy to enhance osseointegration of dental and orthopaedic implants in a mouse model (Brtl/+) mimicking moderate to severe Osteogenesis Imperfecta (OI). To address the challenges in achieving stable implant integration in compromised bone conditions, our aim was to determine the effectiveness of sclerostin antibody (SclAb) at improving bone-to-implant contact and implant fixation strength. Utilizing a combination of micro-computed tomography, mechanical push-in testing, immunohistochemistry, and Western blot analysis, we observed that SclAb treatment significantly enhances bone volume fraction (BV/TV) and bone-implant contact (BIC) in Brtl/+ mice, suggesting a normalization of bone structure toward WT levels. Despite variations in implant survival rates between the maxilla and tibia, SclAb treatment consistently improved implant stability and resistance to mechanical forces, highlighting its potential to overcome the inherent challenges of OI in dental and orthopaedic implant integration. These results suggest that SclAb could be a valuable therapeutic approach for enhancing implant success in compromised bone conditions.
Collapse
Affiliation(s)
- Hsiao H Sung
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA; Department of Oral and Maxillofacial Surgery, University of Michigan, Ann Arbor, MI, USA; Experimental Rheumatology, Department of Rheumatology, Radboud Medical Centre, Nijmegen, the Netherlands
| | - Hanna H Kwon
- Department of Oral and Maxillofacial Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Chris Stephan
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Skylar M Reynolds
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Zongrui Dai
- Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA
| | - Peter M Van der Kraan
- Experimental Rheumatology, Department of Rheumatology, Radboud Medical Centre, Nijmegen, the Netherlands
| | - Michelle S Caird
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | | | - Kenneth M Kozloff
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA.
| |
Collapse
|
2
|
Jiao Z, Chai H, Wang S, Sun C, Huang Q, Xu W. SOST gene suppression stimulates osteocyte Wnt/β-catenin signaling to prevent bone resorption and attenuates particle-induced osteolysis. J Mol Med (Berl) 2023; 101:607-620. [PMID: 37121919 PMCID: PMC10163143 DOI: 10.1007/s00109-023-02319-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 04/01/2023] [Accepted: 04/11/2023] [Indexed: 05/02/2023]
Abstract
The most common cause for prosthetic revision surgery is wear particle-induced periprosthetic osteolysis, which leads to aseptic loosening of the prosthesis. Both SOST gene and its synthetic protein, sclerostin, are hallmarks of osteocytes. According to our previous findings, blocking SOST induces bone formation and protects against bone loss and deformation caused by titanium (Ti) particles by activating the Wnt/β-catenin cascade. Although SOST has been shown to influence osteoblasts, its ability to control wear-particle-induced osteolysis via targeting osteoclasts remains unclear. Mice were subjected to development of a cranial osteolysis model. Micro CT, HE staining, and TRAP staining were performed to evaluate bone loss in the mouse model. Bone marrow-derived monocyte-macrophages (BMMs) made from the C57BL/6 mice were exposed to the medium of MLO-Y4 (co-cultured with Ti particles) to transform them into osteoclasts. Bioinformatics methods were used to predict and validate the interaction among SOST, Wnt/β-catenin, RANKL/OPG, TNF-α, and IL-6. Local bone density and bone volume improved after SOST inhibition, both the number of lysis pores and the rate of skull erosion decreased. Histological research showed that β-catenin and OPG expression were markedly increased after SOST inhibition, whereas TRAP and RANKL levels were markedly decreased. In-vitro, Ti particle treatment elevated the expression of sclerostin, suppressed the expression of β-catenin, and increased the RANKL/OPG ratio in the MLO-Y4 cell line. TNF-α and IL-6 also elevated after treatment with Ti particles. The expression levels of NFATc1, CTSK, and TRAP in osteoclasts were significantly increased, and the number of positive cells for TRAP staining was increased. Additionally, the volume of bone resorption increased at the same time. In contrast, when SOST expression was inhibited in the MLO-Y4 cell line, these effects produced by Ti particles were reversed. All the results strongly show that SOST inhibition triggered the osteocyte Wnt/β-catenin signaling cascade and prevented wear particle-induced osteoclastogenesis, which might reduce periprosthetic osteolysis. KEY MESSAGES: SOST is a molecular regulator in maintaining bone homeostasis. SOST plays in regulating bone homeostasis through the Wnt/β-catenin signaling pathway. SOST gene suppression stimulates osteocyte Wnt/β-catenin signaling to prevent bone resorption and attenuates particle-induced osteolysis.
Collapse
Affiliation(s)
- Zixue Jiao
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Hao Chai
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
- Department of Orthopedics, Taiyuan Central Hospital of Shanxi Medical University, Taiyuan, 030009, Shanxi, China
| | - Shendong Wang
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Chunguang Sun
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
- Department of Orthopedics, Funing People's Hospital, Yancheng, 224400, Jiangsu, China
| | - Qun Huang
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
- Department of Orthopedics, Zhangjiagang City First People's Hospital, Zhangjiagang, 215699, Jiangsu, China
| | - Wei Xu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China.
| |
Collapse
|
3
|
Couto BADA, Fernandes JCH, Saavedra-Silva M, Roca H, Castilho RM, Fernandes GVDO. Antisclerostin Effect on Osseointegration and Bone Remodeling. J Clin Med 2023; 12:jcm12041294. [PMID: 36835830 PMCID: PMC9964545 DOI: 10.3390/jcm12041294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/17/2023] [Accepted: 01/26/2023] [Indexed: 02/10/2023] Open
Abstract
Objective: This study reviewed the literature on local or systemic administration of antisclerostin, presenting results associated with osseointegration of dental/orthopedic implants and stimulation of bone remodeling. Materials and Methods: An extensive electronic search was conducted through MED-LINE/PubMed, PubMed Central, Web of Science databases and specific peer-reviewed journals to identify case reports, case series, randomized controlled trials, clinical trials and animal studies comparing either the systemic or local administration of antisclerostin and its effect in osseointegration and bone remodeling. Articles in English and with no restriction on period were included. Results: Twenty articles were selected for a full-text, and one was excluded. Finally, 19 articles were included in the study (16 animal studies and 3 randomized control trials). These studies were divided into two groups, which evaluated (i) osseointegration and (ii) bone remodeling potential. Initially 4560 humans and 1191 animals were identified. At least 1017 were excluded from the studies (981 humans and 36 animals), totaling 4724 subjects who completed (3579 humans and 1145 animals). (a) Osseointegration: 7 studies described this phenomenon; 4 reported bone-implant contact, which increased in all included studies. Similar results were found for bone mineral density, bone area/volume and bone thickness. (b) Bone remodeling: 13 studies were used for description. The studies reported an increase in BMD with sclerostin antibody treatment. A similar effect was found for bone mineral density/area/volume, trabecular bone and bone formation. Three biomarkers of bone formation were identified: bone-specific alkaline phosphatase (BSAP), osteocalcin and procollagen type 1 N-terminal Pro-peptide (P1NP); and markers for bone resorption were: serum C-telopeptide (sCTX), C-terminal telopeptides of type I collagen (CTX-1), β-isomer of C-terminal telopeptides of type I collagen (β-CTX) and tartrate-resistant acid phosphatase 5b (TRACP-5b). There were limitations: low number of human studies identified; high divergence in the model used (animal or human); the variance in the type of Scl-Ab and doses of administration; and the lack of reference quantitative values in the parameters analyzed by authors' studies (many articles only reported qualitative information). Conclusion: Within the limitations of this review and carefully observing all data, due to the number of articles included and the heterogeneity existing, more studies must be carried out to better evaluate the action of the antisclerostin on the osseointegration of dental implants. Otherwise, these findings can accelerate and stimulate bone remodeling and neoformation.
Collapse
Affiliation(s)
| | | | - Mariana Saavedra-Silva
- Departamento de Cirurgía (Área de Estomatología), Facultad de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain
| | - Hernan Roca
- McCauley-Roca Lab’s, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
| | - Rogério Moraes Castilho
- Periodontics and Oral Medicine Department, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
| | | |
Collapse
|
4
|
The Role of the Innate Immune System in Wear Debris-Induced Inflammatory Peri-Implant Osteolysis in Total Joint Arthroplasty. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 9:bioengineering9120764. [PMID: 36550970 PMCID: PMC9774505 DOI: 10.3390/bioengineering9120764] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/23/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022]
Abstract
Periprosthetic osteolysis remains a leading complication of total hip and knee arthroplasty, often resulting in aseptic loosening of the implant and necessitating revision surgery. Wear-induced particulate debris is the main cause initiating this destructive process. The purpose of this article is to review recent advances in understanding of how wear debris causes osteolysis, and emergent strategies for the avoidance and treatment of this disease. A strong activator of the peri-implant innate immune this debris-induced inflammatory cascade is dictated by macrophage secretion of TNF-α, IL-1, IL-6, and IL-8, and PGE2, leading to peri-implant bone resorption through activation of osteoclasts and inhibition of osteoblasts through several mechanisms, including the RANK/RANKL/OPG pathway. Therapeutic agents against proinflammatory mediators, such as those targeting tumor necrosis factor (TNF), osteoclasts, and sclerostin, have shown promise in reducing peri-implant osteolysis in vitro and in vivo; however, radiographic changes and clinical diagnosis often lag considerably behind the initiation of osteolysis, making timely treatment difficult. Considerable efforts are underway to develop such diagnostic tools, therapies, and identify novel targets for therapeutic intervention.
Collapse
|
5
|
Asperuloside Prevents Peri-Implantitis via Suppression of NF-κB and ERK1/2 on Rats. Pharmaceuticals (Basel) 2022; 15:ph15081027. [PMID: 36015175 PMCID: PMC9412302 DOI: 10.3390/ph15081027] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/11/2022] [Accepted: 08/16/2022] [Indexed: 11/24/2022] Open
Abstract
Peri-implantitis is characterized by inflammatory cell infiltration and hyperactivation of the osteoclasts surrounding dental implants which can result in bone resorption and ultimately implant failure. Therefore, coordinating the activity of inflammatory response and bone-resorbing osteoclasts is crucial for the prevention of peri-implantitis. Asperuloside (ASP), an iridoid glycoside, has significant anti-inflammatory activities, suggesting the great potential in attenuating peri-implantitis bone resorption. A ligature-induced peri-implantitis model in the maxilla of rats was established, and the effects of ASP on preventing peri-implantitis were evaluated after four weeks of ligation using micro-CT and histological staining. RT-PCR, western blotting, tartrate-resistant acid phosphatase (TRAP), and immunofluorescent staining were conducted on osteoclasts to confirm the mechanisms of ASP on osteoclastogenesis. The results show that ASP could lead to attenuation of alveolar bone resorption in peri-implantitis by inhibiting osteoclast formation and decreasing pro-inflammatory cytokine levels in vivo. Furthermore, ASP could inhibit osteoclastogenesis by downregulating expression levels of transcription factors nuclear factor of activated T-cell (NFATc1) via restraining the activations of nuclear factor kappa beta (NF-κB) and the phosphorylation of extracellular signal-related kinase 1/2 (ERK1/2). In conclusion, ASP could significantly attenuate bone resorption in peri-implantitis via inhibition of osteoclastogenesis by suppressing NF-κB and ERK1/2 signaling pathways activations.
Collapse
|
6
|
Ko FC, Moran MM, Ross RD, Sumner DR. Activation of canonical Wnt signaling accelerates intramembranous bone regeneration in male mice. J Orthop Res 2022; 40:1834-1843. [PMID: 34811780 PMCID: PMC9124233 DOI: 10.1002/jor.25217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 10/25/2021] [Accepted: 11/09/2021] [Indexed: 02/04/2023]
Abstract
Canonical Wnt signaling plays an important role in skeletal development, homeostasis, and both endochondral and intramembranous repair. While studies have demonstrated that the inhibition of Wnt signaling impairs intramembranous bone regeneration, how its activation affects intramembranous bone regeneration has been underexplored. Therefore, we sought to determine the effects of activation of canonical Wnt signaling on intramembranous bone regeneration by using the well-established marrow ablation model. We hypothesized that mice with a mutation in the Wnt ligand coreceptor gene Lrp5 would have accelerated intramembranous bone regeneration. Male and female wild-type and Lrp5-mutant mice underwent unilateral femoral bone marrow ablation surgery in the right femur at 4 weeks of age. Both the left intact and right operated femurs were assessed at Days 3, 5, 7, 10, and 14. The intact femur of Lrp5 mutant mice of both sexes had higher bone mass than wild-type littermates, although to a greater degree in males than females. Overall, the regenerated bone volume in Lrp5 mutant male mice was 1.8-fold higher than that of littermate controls, whereas no changes were observed between female Lrp5 mutant and littermate control mice. In addition, the rate of intramembranous bone regeneration (from Day 3 to Day 7) was higher in Lrp5 mutant male mice compared to their same-sex littermate controls with no difference in the females. Thus, activation of canonical Wnt signaling increases bone mass in intact bones of both sexes, but accelerates intramembranous bone regeneration following an injury challenge only in male mice.
Collapse
Affiliation(s)
- Frank C. Ko
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL, 60612,Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, 60612
| | - Meghan M. Moran
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL, 60612,Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, 60612
| | - Ryan D. Ross
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL, 60612,Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, 60612
| | - D. Rick Sumner
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL, 60612,Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, 60612
| |
Collapse
|
7
|
Mohammadi A, Dehkordi NR, Mahmoudi S, Rafeie N, Sabri H, Valizadeh M, Poorsoleiman T, Jafari A, Mokhtari A, Khanjarani A, Salimi Y, Mokhtari M, Deravi N. Effects of Drugs and Chemotherapeutic Agents on Dental Implant Osseointegration: Narrative Review. Curr Rev Clin Exp Pharmacol 2022; 19:CRCEP-EPUB-124232. [PMID: 35674294 DOI: 10.2174/2772432817666220607114559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 01/27/2022] [Accepted: 03/03/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Dental implants have been one of the most popular treatments for rehabilitating individuals with single missing teeth or fully edentulous jaws since their introduction. As more implant patients are well-aged and take several medications due to various systemic conditions, clinicians should be mindful of possible drug implications on bone remodeling and osseointegration. OBJECTIVE The present study aims to study and review some desirable and some unwelcomed implications of medicine on osseointegration. METHODS A broad search for proper relevant studies were conducted in four databases, including Web of Science, Pubmed, Scopus, and Google Scholar. RESULTS Some commonly prescribed medicines such as nonsteroidal anti-inflammatory drugs (NSAIDs), glucocorticoids, proton pump inhibitors (PPIs), selective serotonin reuptake inhibitors (SSRIs), anticoagulants, metformin, and chemotherapeutic agents may jeopardize osseointegration. On the contrary, some therapeutic agents such as anabolic, anti-catabolic, or dual anabolic and anti-catabolic agents may enhance osseointegration and increase the treatment's success rate. CONCLUSION Systemic medications that enhance osseointegration include mineralization promoters and bone resorption inhibitors. On the other hand, medications often given to the elderly with systemic problems might interfere with osseointegration, leading to implant failure. However, to validate the provided research, more human studies with a higher level of evidence are required.
Collapse
Affiliation(s)
- Aida Mohammadi
- Dental Materials Research Center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Nazanin Roqani Dehkordi
- Department of Periodontology, Faculty of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Sadaf Mahmoudi
- Department of Endodontics, School of Dentistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
| | - Niyousha Rafeie
- Dental Research Center, Dentistry Research Institute, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamoun Sabri
- Research Center, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Valizadeh
- Student Research Committee, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Taniya Poorsoleiman
- Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Aryan Jafari
- Dental Materials Research Center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Alireza Mokhtari
- Student Research Committee, Dental Faculty, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Arshia Khanjarani
- Student Research Committee, Dental Faculty, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Yasaman Salimi
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Melika Mokhtari
- Student Research Committee, Dental Faculty, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Niloofar Deravi
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical sciences, Tehran, Iran
| |
Collapse
|
8
|
Liao C, Liang S, Wang Y, Zhong T, Liu X. Sclerostin is a promising therapeutic target for oral inflammation and regenerative dentistry. J Transl Med 2022; 20:221. [PMID: 35562828 PMCID: PMC9102262 DOI: 10.1186/s12967-022-03417-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/28/2022] [Indexed: 11/10/2022] Open
Abstract
Sclerostin is the protein product of the SOST gene and is known for its inhibitory effects on bone formation. The monoclonal antibody against sclerostin has been approved as a novel treatment method for osteoporosis. Oral health is one of the essential aspects of general human health. Hereditary bone dysplasia syndrome caused by sclerostin deficiency is often accompanied by some dental malformations, inspiring the therapeutic exploration of sclerostin in the oral and dental fields. Recent studies have found that sclerostin is expressed in several functional cell types in oral tissues, and the expression level of sclerostin is altered in pathological conditions. Sclerostin not only exerts similar negative outcomes on the formation of alveolar bone and bone-like tissues, including dentin and cementum, but also participates in the development of oral inflammatory diseases such as periodontitis, pulpitis, and peri-implantitis. This review aims to highlight related research progress of sclerostin in oral cavity, propose necessary further research in this field, and discuss its potential as a therapeutic target for dental indications and regenerative dentistry.
Collapse
Affiliation(s)
- Chufang Liao
- School of Stomatology, Jinan University, Guangzhou, China.,Clinical Research Platform for Interdiscipline of Stomatology, Jinan University, Guangzhou, China.,Department of Stomatology Medical Center, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Shanshan Liang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Prosthodontics, Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yining Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Prosthodontics, Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Ting Zhong
- School of Stomatology, Jinan University, Guangzhou, China.,Clinical Research Platform for Interdiscipline of Stomatology, Jinan University, Guangzhou, China.,Department of Stomatology Medical Center, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xiangning Liu
- School of Stomatology, Jinan University, Guangzhou, China. .,Clinical Research Platform for Interdiscipline of Stomatology, Jinan University, Guangzhou, China. .,Department of Stomatology Medical Center, The First Affiliated Hospital of Jinan University, Guangzhou, China.
| |
Collapse
|
9
|
Zhou C, Wang Y, Meng J, Yao M, Xu H, Wang C, Bi F, Zhu H, Yang G, Shi M, Yan S, Wu H. Additive Effect of Parathyroid Hormone and Zoledronate Acid on Prevention Particle Wears-Induced Implant Loosening by Promoting Periprosthetic Bone Architecture and Strength in an Ovariectomized Rat Model. Front Endocrinol (Lausanne) 2022; 13:871380. [PMID: 35546997 PMCID: PMC9084285 DOI: 10.3389/fendo.2022.871380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/16/2022] [Indexed: 11/13/2022] Open
Abstract
Implant-generated particle wears are considered as the major cause for the induction of implant loosening, which is more susceptible to patients with osteoporosis. Monotherapy with parathyroid hormone (PTH) or zoledronate acid (ZOL) has been proven efficient for preventing early-stage periprosthetic osteolysis, while the combination therapy with PTH and ZOL has exerted beneficial effects on the treatment of posterior lumbar vertebral fusion and disuse osteopenia. However, PTH and ZOL still have not been licensed for the treatment of implant loosening to date clinically. In this study, we have explored the effect of single or combined administration with PTH and ZOL on implant loosening in a rat model of osteoporosis. After 12 weeks of ovariectomized surgery, a femoral particle-induced periprosthetic osteolysis model was established. Vehicle, PTH (5 days per week), ZOL (100 mg/kg per week), or combination therapy was utilized for another 6 weeks before sacrifice, followed by micro-CT, histology, mechanical testing, and bone turnover examination. PTH monotherapy or combined PTH with ZOL exerted a protective effect on maintaining implant stability by elevating periprosthetic bone mass and inhibiting pseudomembrane formation. Moreover, an additive effect was observed when combining PTH with ZOL, resulting in better fixation strength, higher periprosthetic bone mass, and less pseudomembrane than PTH monotherapy. Taken together, our results suggested that a combination therapy of PTH and ZOL might be a promising approach for the intervention of early-stage implant loosening in patients with osteoporosis.
Collapse
Affiliation(s)
- Chenhe Zhou
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Yangxin Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Jiahong Meng
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Minjun Yao
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Huikang Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Cong Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Fanggang Bi
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hanxiao Zhu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Guang Yang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Mingmin Shi
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
- *Correspondence: Haobo Wu, ; Shigui Yan, ; Mingmin Shi,
| | - Shigui Yan
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
- *Correspondence: Haobo Wu, ; Shigui Yan, ; Mingmin Shi,
| | - Haobo Wu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
- *Correspondence: Haobo Wu, ; Shigui Yan, ; Mingmin Shi,
| |
Collapse
|
10
|
Jagga S, Sharma AR, Lee YH, Nam JS, Lee SS. Sclerostin-Mediated Impaired Osteogenesis by Fibroblast-Like Synoviocytes in the Particle-Induced Osteolysis Model. Front Mol Biosci 2021; 8:666295. [PMID: 34250013 PMCID: PMC8260695 DOI: 10.3389/fmolb.2021.666295] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 05/20/2021] [Indexed: 01/02/2023] Open
Abstract
Engineered biomaterials are envisioned to replace, augment, or interact with living tissues for improving the functional deformities associated with end-stage joint pathologies. Unfortunately, wear debris from implant interfaces is the major factor leading to periprosthetic osteolysis. Fibroblast-like synoviocytes (FLSs) populate the intimal lining of the synovium and are in direct contact with wear debris. This study aimed to elucidate the effect of Ti particles as wear debris on human FLSs and the mechanism by which they might participate in the bone remodeling process during periprosthetic osteolysis. FLSs were isolated from synovial tissue from patients, and the condition medium (CM) was collected after treating FLSs with sterilized Ti particles. The effect of CM was analyzed for the induction of osteoclastogenesis or any effect on osteogenesis and signaling pathways. The results demonstrated that Ti particles could induce activation of the NFκB signaling pathway and induction of COX-2 and inflammatory cytokines in FLSs. The amount of Rankl in the conditioned medium collected from Ti particle–stimulated FLSs (Ti CM) showed the ability to stimulate osteoclast formation. The Ti CM also suppressed the osteogenic initial and terminal differentiation markers for osteoprogenitors, such as alkaline phosphate activity, matrix mineralization, collagen synthesis, and expression levels of Osterix, Runx2, collagen 1α, and bone sialoprotein. Inhibition of the WNT and BMP signaling pathways was observed in osteoprogenitors after the treatment with the Ti CM. In the presence of the Ti CM, exogenous stimulation by WNT and BMP signaling pathways failed to stimulate osteogenic activity in osteoprogenitors. Induced expression of sclerostin (SOST: an antagonist of WNT and BMP signaling) in Ti particle–treated FLSs and secretion of SOST in the Ti CM were detected. Neutralization of SOST in the Ti CM partially restored the suppressed WNT and BMP signaling activity as well as the osteogenic activity in osteoprogenitors. Our results reveal that wear debris–stimulated FLSs might affect bone loss by not only stimulating osteoclastogenesis but also suppressing the bone-forming ability of osteoprogenitors. In the clinical setting, targeting FLSs for the secretion of antagonists like SOST might be a novel therapeutic approach for preventing bone loss during inflammatory osteolysis.
Collapse
Affiliation(s)
- Supriya Jagga
- Institute for Skeletal Aging and Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon, South Korea
| | - Ashish Ranjan Sharma
- Institute for Skeletal Aging and Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon, South Korea
| | - Yeon Hee Lee
- Institute for Skeletal Aging and Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon, South Korea
| | - Ju-Suk Nam
- Institute for Skeletal Aging and Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon, South Korea
| | - Sang-Soo Lee
- Institute for Skeletal Aging and Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon, South Korea
| |
Collapse
|
11
|
Ma Y, Ran D, Shi X, Zhao H, Liu Z. Cadmium toxicity: A role in bone cell function and teeth development. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 769:144646. [PMID: 33485206 DOI: 10.1016/j.scitotenv.2020.144646] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
Cadmium (Cd) is a widespread environmental contaminant that causes severe bone metabolism disease, such as osteoporosis, osteoarthritis, and osteomalacia. The present review aimed to explore the molecular mechanisms of Cd-induced bone injury starting from bone cell function and teeth development. Cd inhibits the differentiation of bone marrow mesenchymal stem cells (BMSCs) into osteoblasts, and directly causes BMSC apoptosis. In the case of osteoporosis, Cd mainly affects the activation of osteoclasts and promotes bone resorption. Cd-induces osteoblast injury and oxidative stress, which causes DNA damage, mitochondrial dysfunction, and endoplasmic reticulum stress, resulting in apoptosis. In addition, the development of osteoarthritis (OA) might be related to Cd-induced chondrocyte damage. The high expression of metallothionein (MT) might reduce Cd toxicity toward osteocytes. The toxicity of Cd toward teeth mainly focuses on enamel development and dental caries. Understanding the effect of Cd on bone cell function and teeth development could contribute to revealing the mechanisms of Cd-induced bone damage. This review explores Cd-induced bone disease from cellular and molecular levels, and provides new directions for removing this heavy metal from the environment.
Collapse
Affiliation(s)
- Yonggang Ma
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, PR China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, PR China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, PR China
| | - Di Ran
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, PR China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, PR China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, PR China
| | - Xueni Shi
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, PR China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, PR China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, PR China
| | - Hongyan Zhao
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, PR China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, PR China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, PR China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, PR China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, PR China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, PR China.
| |
Collapse
|
12
|
Wang W, Han B, Chen J, Tian H, Sun M, Jiang Y, Xie W. Tolerogenic dendritic cells suppress titanium particle-induced inflammation. Exp Ther Med 2021; 22:712. [PMID: 34007321 PMCID: PMC8120651 DOI: 10.3892/etm.2021.10144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 03/10/2021] [Indexed: 02/05/2023] Open
Abstract
Aseptic loosening is a major complication of prosthetic joint surgery. The leading cause of arthroplasty failure is particulate wear debris such as titanium particles. Dendritic cells (DCs) are one type of immune cells that play an important role in the initiation and progression of inflammatory processes. DCs can develop into tolerogenic DCs (tolDCs), which present an alternative therapeutic strategy for inflammatory disorders. Previously, antigen-specific tolDCs were generated, which showed a promising effect in treating inflammatory arthritis and immune thrombocytopenia. The present study reports that tolDCs effectively inhibited titanium particle-induced inflammation in an air-pouch mouse model by decreasing pro-inflammatory cytokines. In addition, a mechanistic study demonstrated that tolDCs significantly protected against titanium particle-induced inflammatory processes in vitro by releasing anti-inflammatory cytokines, such as interleukin-10. Collectively, these findings not only demonstrate that tolDCs play an important role in inhibiting titanium particle-induced inflammation but also provide a potential alternative for the prevention or treatment of titanium particle-induced inflammation.
Collapse
Affiliation(s)
- Wenzhao Wang
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Emergency Medicine, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong 271000, P.R. China
| | - Bing Han
- Department of Orthopedic, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong 250013, P.R. China.,Department of Orthopedics, Zoucheng People's Hospital, Zoucheng, Shandong 273500, P.R. China
| | - Jianan Chen
- Department of Orthopedic, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong 250013, P.R. China
| | - Huichao Tian
- Department of Orthopedic, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Mingjie Sun
- Department of Orthopedic, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong 250013, P.R. China
| | - Yunpeng Jiang
- Department of Orthopedic, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Wei Xie
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Emergency Medicine, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong 271000, P.R. China
| |
Collapse
|
13
|
Ni S, Jiang T, Hao S, Luo P, Wang P, Almatari Y, Wang Y, Zhang Z, Guo L. circRNA expression pattern and ceRNA network in the pathogenesis of aseptic loosening after total hip arthroplasty. Int J Med Sci 2021; 18:768-777. [PMID: 33437212 PMCID: PMC7797529 DOI: 10.7150/ijms.48014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 11/17/2020] [Indexed: 12/15/2022] Open
Abstract
Increasing evidence has demonstrated that circular RNA (circRNA) exerts important function in the pathogenesis of some diseases. While, the contributions of circRNAs to aseptic loosening after total hip arthroplasty (THA) remain largely unknown. Our research is to explore the differentially expressed circRNAs (DEcircRNAs) and elucidate complex regulated mechanism of circRNAs in aseptic loosening. The DEcircRNAs were identified by RNA sequencing (RNA-seq) analysis. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was adopted to corroborate these DEcircRNAs. The potential function of circRNAs in aseptic loosening tissue was identified by competing endogenous RNA (ceRNA) analysis. Enrichment analysis was performed for target mRNAs and host genes of the DEcircRNAs by Gene Oncology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG). 257 DEcircRNAs were obtained from RNA-seq results. Following the RT-qPCR corroboration, 6 circRNAs (hsa_circ_0007482, hsa_circ_0005232, hsa_circ_0000994, hsa_circ_0000690, hsa_circ_0058092 and hsa_circ_0004496) were selected for further analysis. By circRNA-miRNA and miRNA-mRNA prediction, 6 circRNAs, 138 miRNAs and 1667 mRNAs were identified. Then, circRNA-miRNA-mRNA network was established. The result of GO and KEGG enrichment analysis suggested that the circRNAs were related with some biological functions and pathways of aseptic loosening. A novel pathogenesis and treatment strategy about aseptic loosening after THA was revealed from our study of circRNA-miRNA-mRNA network.
Collapse
Affiliation(s)
- Shenghui Ni
- Department of Orthopedic Surgery, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, P.R. China.,Department of Orthopedic Surgery, Fourth Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, P.R. China
| | - Tianlong Jiang
- Department of Orthopedic Surgery, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, P.R. China
| | - Shimin Hao
- Department of Orthopedic Surgery, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, P.R. China
| | - Peng Luo
- Department of Orthopedic Surgery, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, P.R. China
| | - Penghao Wang
- Department of Orthopedic Surgery, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, P.R. China
| | - Yaser Almatari
- Department of Orthopedic Surgery, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, P.R. China
| | - Yu Wang
- Department of Orthopedic Surgery, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, P.R. China
| | - Zhiyu Zhang
- Department of Orthopedic Surgery, Fourth Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, P.R. China
| | - Lei Guo
- Department of Orthopedic Surgery, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, P.R. China
| |
Collapse
|
14
|
Moran MM, Wilson BM, Li J, Engen PA, Naqib A, Green SJ, Virdi AS, Plaas A, Forsyth CB, Keshavarzian A, Sumner DR. The gut microbiota may be a novel pathogenic mechanism in loosening of orthopedic implants in rats. FASEB J 2020; 34:14302-14317. [PMID: 32931052 DOI: 10.1096/fj.202001364r] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/29/2020] [Accepted: 08/07/2020] [Indexed: 01/08/2023]
Abstract
Particles released from implants cause inflammatory bone loss, which is a key factor in aseptic loosening, the most common reason for joint replacement failure. With the anticipated increased incidence of total joint replacement in the next decade, implant failure will continue to burden patients. The gut microbiome is increasingly recognized as an important factor in bone physiology, however, its role in implant loosening is currently unknown. We tested the hypothesis that implant loosening is associated with changes in the gut microbiota in a preclinical model. When the particle challenge caused local joint inflammation, decreased peri-implant bone volume, and decreased implant fixation, the gut microbiota was affected. When the particle challenge did not cause this triad of local effects, the gut microbiota was not affected. Our results suggest that cross-talk between these compartments is a previously unrecognized mechanism of failure following total joint replacement.
Collapse
Affiliation(s)
- Meghan M Moran
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Brittany M Wilson
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Jun Li
- Department of Internal Medicine, Division of Rheumatology, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Phillip A Engen
- Department of Internal Medicine, Division of Digestive Diseases and Nutrition, Rush Medical College, Chicago, IL, USA
| | - Ankur Naqib
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL, USA.,Department of Internal Medicine, Division of Digestive Diseases and Nutrition, Rush Medical College, Chicago, IL, USA
| | - Stefan J Green
- Genome Research Core, Research Resources Center, University of Illinois-Chicago, Chicago, IL, USA
| | - Amarjit S Virdi
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Anna Plaas
- Department of Internal Medicine, Division of Rheumatology, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Christopher B Forsyth
- Department of Internal Medicine, Division of Digestive Diseases and Nutrition, Rush Medical College, Chicago, IL, USA
| | - Ali Keshavarzian
- Department of Internal Medicine, Division of Digestive Diseases and Nutrition, Rush Medical College, Chicago, IL, USA
| | - Dale R Sumner
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL, USA
| |
Collapse
|
15
|
Wei Y, Liu Z, Zhu X, Jiang L, Shi W, Wang Y, Xu N, Gang F, Wang X, Zhao L, Lin J, Sun X. Dual directions to address the problem of aseptic loosening via electrospun PLGA @ aspirin nanofiber coatings on titanium. Biomaterials 2020; 257:120237. [PMID: 32738656 DOI: 10.1016/j.biomaterials.2020.120237] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 07/12/2020] [Accepted: 07/13/2020] [Indexed: 01/12/2023]
Abstract
Peri-implant aseptic inflammation and osteolysis can cause aseptic loosening, leading to the failure of implants. Therefore, aseptic loosening of orthopedic implants remains an imminent problem for the development of durable and effective implants. In this work, a common anti-inflammatory drug (aspirin, ASA) was loaded in poly(lactic-co-glycolic acid) (PLGA) to construct nanofiber coatings on titanium (Ti) via electrospinning. The adhesion of the nanofiber coatings to Ti was ensured by polydopamine (PDA) modification. A stable and sustainable release of aspirin from the nanofiber coatings could last up to 60 days. Such electrospun PLGA@ASA nanofiber coatings could promote proliferation and osteogenic differentiation of bone mesenchymal stem cells (BMSCs) as well as inhibit M1 polarization and RANKL-induced osteoclast differentiation of macrophages in vitro. These results indicated that this facile formulation of the PLGA@ASA nanofiber coatings for long-term drug release could be expected to address the problem of aseptic loosening effectively in dual directions of both anti-inflammation and improving osseointegration simultaneously. Notably, the in vivo experiments demonstrated that PLGA@ASA nanofiber coatings did promote osseointegration ability of Ti implants significantly, even in challenging condition with wear particles, and also effectively inhibited Ti particle induced osteolysis around the implants. This work indicates a promising way for the development of durable and effective implants by using PLGA@ASA-PDA-Ti to address the problem of aseptic loosening in dual directions.
Collapse
Affiliation(s)
- Yaojie Wei
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China; Key Laboratory of Advanced Materials of Ministry of Education of China, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Zhongqun Liu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China; Key Laboratory of Advanced Materials of Ministry of Education of China, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Xu Zhu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, 215000, People's Republic of China
| | - Le Jiang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China; Key Laboratory of Advanced Materials of Ministry of Education of China, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Weidong Shi
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, 215000, People's Republic of China
| | - Yingjin Wang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China; Key Laboratory of Advanced Materials of Ministry of Education of China, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Nan Xu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China; Key Laboratory of Advanced Materials of Ministry of Education of China, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Fangli Gang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China; Key Laboratory of Advanced Materials of Ministry of Education of China, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China; College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Xiumei Wang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China; Key Laboratory of Advanced Materials of Ministry of Education of China, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Lingyun Zhao
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China; Key Laboratory of Advanced Materials of Ministry of Education of China, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Jun Lin
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, 215000, People's Republic of China.
| | - Xiaodan Sun
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China; Key Laboratory of Advanced Materials of Ministry of Education of China, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China.
| |
Collapse
|
16
|
Yu B, Bai J, Shi J, Shen J, Guo X, Liu Y, Ge G, Lin J, Tao Y, Yang H, Xu Y, Qu Q, Geng D. MiR-106b inhibition suppresses inflammatory bone destruction of wear debris-induced periprosthetic osteolysis in rats. J Cell Mol Med 2020; 24:7490-7503. [PMID: 32485091 PMCID: PMC7339204 DOI: 10.1111/jcmm.15376] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 04/10/2020] [Accepted: 04/22/2020] [Indexed: 12/14/2022] Open
Abstract
Aseptic loosening caused by periprosthetic osteolysis (PPO) is the main reason for the primary artificial joint replacement. Inhibition of inflammatory osteolysis has become the main target of drug therapy for prosthesis loosening. MiR‐106b is a newly discovered miRNA that plays an important role in tumour biology, inflammation and the regulation of bone mass. In this study, we analysed the in vivo effect of miR‐106b on wear debris‐induced PPO. A rat implant loosening model was established. The rats were then administrated a lentivirus‐mediated miR‐106b inhibitor, miR‐106b mimics or an equivalent volume of PBS by tail vein injection. The expression levels of miR‐106b were analysed by real‐time PCR. Morphological changes in the distal femurs were assessed via micro‐CT and histopathological analysis, and cytokine expression levels were examined via immunohistochemical staining and ELISA. The results showed that treatment with the miR‐106b inhibitor markedly suppressed the expression of miR‐106b in distal femur and alleviated titanium particle‐induced osteolysis and bone loss. Moreover, the miR‐106b inhibitor decreased TRAP‐positive cell numbers and suppressed osteoclast formation, in addition to promoting the activity of osteoblasts and increasing bone formation. MiR‐106b inhibition also significantly regulated macrophage polarization and decreased the inflammatory response as compared to the control group. Furthermore, miR‐106b inhibition blocked the activation of the PTEN/PI3K/AKT and NF‐κB signalling pathways. Our findings indicated that miR‐106b inhibition suppresses wear particles‐induced osteolysis and bone destruction and thus may serve as a potential therapy for PPO and aseptic loosening.
Collapse
Affiliation(s)
- Binqing Yu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jiaxiang Bai
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jian Shi
- Department of Pharmacy, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jining Shen
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaobin Guo
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yu Liu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Gaoran Ge
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jiayi Lin
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yunxia Tao
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Huilin Yang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yaozeng Xu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Qiuxia Qu
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| |
Collapse
|
17
|
Rothe R, Schulze S, Neuber C, Hauser S, Rammelt S, Pietzsch J. Adjuvant drug-assisted bone healing: Part III - Further strategies for local and systemic modulation. Clin Hemorheol Microcirc 2020; 73:439-488. [PMID: 31177207 DOI: 10.3233/ch-199104] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this third in a series of reviews on adjuvant drug-assisted bone healing, further approaches aiming at influencing the healing process are discussed. Local and systemic modulation of bone metabolism is pursued with use of a number of drugs with completely different indications, which are characterized by a pleiotropic spectrum of action. These include drugs used to treat lipid disorders (HMG-CoA reductase inhibitors), hypertension (ACE inhibitors), osteoporosis (bisphosphonates), cancer (proteasome inhibitors) and others. Potential applications to enhance bone healing are discussed.
Collapse
Affiliation(s)
- Rebecca Rothe
- Department of Radiopharmaceutical and Chemical Biology, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
| | - Sabine Schulze
- University Center of Orthopaedics and Traumatology (OUC), University Hospital Carl Gustav Carus, Dresden, Germany.,Center for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Christin Neuber
- Department of Radiopharmaceutical and Chemical Biology, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
| | - Sandra Hauser
- Department of Radiopharmaceutical and Chemical Biology, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
| | - Stefan Rammelt
- University Center of Orthopaedics and Traumatology (OUC), University Hospital Carl Gustav Carus, Dresden, Germany.,Center for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany.,Center for Regenerative Therapies Dresden (CRTD), Tatzberg 4, Dresden
| | - Jens Pietzsch
- Department of Radiopharmaceutical and Chemical Biology, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Radiopharmaceutical Cancer Research, Dresden, Germany.,Technische Universität Dresden, School of Science, Faculty of Chemistry and Food Chemistry, Dresden, Germany
| |
Collapse
|
18
|
Zhang ZH, Jia XY, Fang JY, Chai H, Huang Q, She C, Jia P, Geng DC, Xu W. Reduction of SOST gene promotes bone formation through the Wnt/β-catenin signalling pathway and compensates particle-induced osteolysis. J Cell Mol Med 2020; 24:4233-4244. [PMID: 32134561 PMCID: PMC7171346 DOI: 10.1111/jcmm.15084] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 01/14/2020] [Accepted: 01/29/2020] [Indexed: 12/16/2022] Open
Abstract
The increase in bone resorption and/or the inhibition of bone regeneration caused by wear particles are the main causes of periprosthetic osteolysis. The SOST gene and Sclerostin, a protein synthesized by the SOST gene, are the characteristic marker of osteocytes and regulate bone formation and resorption. We aimed to verify whether the SOST gene was involved in osteolysis induced by titanium (Ti) particles and to investigate the effects of SOST reduction on osteolysis. The results showed osteolysis on the skull surface with an increase of sclerostin levels after treated with Ti particles. Similarly, sclerostin expression in MLO-Y4 osteocytes increased when treated with Ti particles in vitro. After reduction of SOST, local bone mineral density and bone volume increased, while number of lytic pores on the skull surface decreased and the erodibility of the skull surface was compensated. Histological analyses revealed that SOST reduction increased significantly alkaline phosphatase- (ALP) and osterix-positive expression on the skull surface which promoted bone formation. ALP activity and mineralization of MC3T3-E1 cells also increased in vitro when SOST was silenced, even if treated with Ti particles. In addition, Ti particles decreased β-catenin expression with an increase in sclerostin levels, in vivo and in vitro. Inversely, reduction of SOST expression increased β-catenin expression. In summary, our results suggested that reduction of SOST gene can activate the Wnt/β-catenin signalling pathway, promoting bone formation and compensated for bone loss induced by Ti particles. Thus, this study provided new perspectives in understanding the mechanisms of periprosthetic osteolysis.
Collapse
Affiliation(s)
- Zai Hang Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Xin Yu Jia
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Jing Yi Fang
- The Experiment Center, The Medical College of Soochow University, Suzhou, China
| | - Hao Chai
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Qun Huang
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China.,Department of Orthopedics, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China
| | - Chang She
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Peng Jia
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - De Chun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Wei Xu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China
| |
Collapse
|
19
|
Liao L, Lin Y, Liu Q, Zhang Z, Hong Y, Ni J, Yu S, Zhong Y. Cepharanthine ameliorates titanium particle-induced osteolysis by inhibiting osteoclastogenesis and modulating OPG/RANKL ratio in a murine model. Biochem Biophys Res Commun 2019; 517:407-412. [DOI: 10.1016/j.bbrc.2019.07.115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 07/29/2019] [Indexed: 01/09/2023]
|
20
|
Hu B, Wu H, Shi Z, Ying Z, Zhao X, Lin T, Hong J, Wang Y, Yang Y, Cai X, Yan S. Effects of sequential treatment with intermittent parathyroid hormone and zoledronic acid on particle-induced implant loosening: Evidence from a rat model. J Orthop Res 2019; 37:1489-1497. [PMID: 30644138 DOI: 10.1002/jor.24217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 12/26/2018] [Indexed: 02/04/2023]
Abstract
Particle-induced implant loosening is a major challenge to long-term survival of joint prostheses. Administration of intermittent parathyroid hormone (PTH) has shown potential in the treatment of cases of early-stage periprosthetic osteolysis, while sequential administration of intermittent PTH (iPTH) and bisphosphonates (Bps) has achieved significant effects on treatment of postmenopausal osteoporosis. The objective of this study was to determine whether sequential treatment could preserve bone mass and implant fixation during a pathological course of peri-implant osteolysis in a rat model. Ninety male Sprague Dawley rats were randomly divided into nine groups, four of which were used for confirmation of establishment of the peri-implant osteolysis model at two time points, while the other five were used to determine the efficiency of the sequential treatment on peri-implant osteolysis. Implant fixation and peri-implant bone mass were evaluated using biomechanical testing, micro-CT analysis, and histology at 6 and 12 weeks postoperative. The biomechanical test demonstrated that the maximum loading force during a push-out test was significantly elevated in the sequential treatment group compared to the osteolysis group and iPTH withdrawal group at 12 weeks. Peri-implant bone morphology also indicated a robust increase in bone volume in the sequential treatment group. Sequential administration of iPTH and Bps was effective in preventing experimental peri-implant osteolysis, resulting in improved implant fixation and increased peri-implant bone volume. Clinical significance: The innovative application of sequential treatment in peri-implant osteolysis could be used clinically to improve the prognosis of patients with early-stage periprosthetic osteolysis. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:1489-1497, 2019.
Collapse
Affiliation(s)
- Bin Hu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, People's Republic of China.,Orthopedic Research Institute of Zhejiang University, No. 88 Jiefang Road, Hangzhou, People's Republic of China
| | - Haobo Wu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, People's Republic of China.,Orthopedic Research Institute of Zhejiang University, No. 88 Jiefang Road, Hangzhou, People's Republic of China
| | - Zhongli Shi
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, People's Republic of China.,Orthopedic Research Institute of Zhejiang University, No. 88 Jiefang Road, Hangzhou, People's Republic of China
| | - Zhimin Ying
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, People's Republic of China.,Orthopedic Research Institute of Zhejiang University, No. 88 Jiefang Road, Hangzhou, People's Republic of China
| | - Xiang Zhao
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, People's Republic of China.,Orthopedic Research Institute of Zhejiang University, No. 88 Jiefang Road, Hangzhou, People's Republic of China
| | - Tiao Lin
- Department of Orthopedic Surgery, First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan 2nd Road, Guangzhou, People's Republic of China
| | - Jianqiao Hong
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, People's Republic of China.,Orthopedic Research Institute of Zhejiang University, No. 88 Jiefang Road, Hangzhou, People's Republic of China
| | - Yangxin Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, People's Republic of China.,Orthopedic Research Institute of Zhejiang University, No. 88 Jiefang Road, Hangzhou, People's Republic of China
| | - Yute Yang
- Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, No. 3 Qingchun East Road, Hangzhou, People's Republic of China
| | - Xunzi Cai
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, People's Republic of China.,Orthopedic Research Institute of Zhejiang University, No. 88 Jiefang Road, Hangzhou, People's Republic of China
| | - Shigui Yan
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, People's Republic of China.,Orthopedic Research Institute of Zhejiang University, No. 88 Jiefang Road, Hangzhou, People's Republic of China
| |
Collapse
|
21
|
Sakamoto E, Kido JI, Takagi R, Inagaki Y, Naruishi K, Nagata T, Yumoto H. Advanced glycation end-product 2 and Porphyromonas gingivalis lipopolysaccharide increase sclerostin expression in mouse osteocyte-like cells. Bone 2019; 122:22-30. [PMID: 30735798 DOI: 10.1016/j.bone.2019.02.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 01/23/2019] [Accepted: 02/04/2019] [Indexed: 02/06/2023]
Abstract
Sclerostin is a secreted glycoprotein that is mainly expressed in osteocytes, exerts negative effects on bone formation, and is present at elevated levels in diabetes mellitus (DM). Periodontitis is an infectious disease caused by periodontopathic bacteria, a complication of DM, and sometimes associated with severe inflammation and alveolar bone resorption. Advanced glycation end-products (AGEs) are a major pathogen in DM complications and adversely influence periodontitis in DM patients. In the present study, the effects of AGE2 and Porphyromonas gingivalis lipopolysaccharide (P-LPS) on the expression of sclerostin in mouse osteocyte-like cells (MLO-Y4-A2 cells) and its function in osteoblast differentiation were investigated. AGE2 and P-LPS up-regulated the expressions of receptor of AGE (RAGE) and Toll-like receptor 2 (TLR2), respectively, and significantly up-regulated that of sclerostin and interleukin 6 (IL-6) in osteocytes. Sclerostin, RAGE and TLR2 levels were synergistically increased by AGE2 and P-LPS. The siRNAs of RAGE and TLR2 significantly inhibited AGE2- and P-LPS-induced sclerostin expression. AGE2 up-regulated sclerostin expression in osteocyte-like cells via the RAGE, ERK and JNK, and NF-κB signal pathways. On the other hand, P-LPS elevated sclerostin levels via the TLR2, JNK and p38, and NF-κB signal pathways. When osteocytes pre-treated with AGE2 and P-LPS and osteoblastic cells (MC3T3-E1) were co-cultured in the medium with a sclerostin-neutralizing antibody, AGE2- and P-LPS-induced decreases in alkaline phosphatase activity and Runx2 expression in osteoblastic cells were significantly inhibited by the sclerostin-neutralizing antibody. These results suggest that AGE2 and P-LPS influence bone metabolism and inflammation through the regulation of sclerostin expression, and may aggravate periodontitis with DM.
Collapse
Affiliation(s)
- Eijiro Sakamoto
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Jun-Ichi Kido
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
| | - Ryosuke Takagi
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yuji Inagaki
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Koji Naruishi
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Toshihiko Nagata
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiromichi Yumoto
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| |
Collapse
|
22
|
Guo X, Liu Y, Bai J, Yu B, Xu M, Sun H, Shen J, Lin J, Zhang H, Wang D, Geng D, Pan G. Efficient Inhibition of Wear-Debris-Induced Osteolysis by Surface Biomimetic Engineering of Titanium Implant with a Mussel-Derived Integrin-Targeting Peptide. ACTA ACUST UNITED AC 2018; 3:e1800253. [PMID: 32627373 DOI: 10.1002/adbi.201800253] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/07/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Xiaobin Guo
- Department of Orthopaedics; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu 215006 China
| | - Yu Liu
- Department of Orthopaedics; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu 215006 China
| | - Jiaxiang Bai
- Department of Orthopaedics; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu 215006 China
| | - Binqing Yu
- Department of Orthopaedics; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu 215006 China
| | - Menglei Xu
- Department of Orthopaedics; Suzhou Municipal Hospital Affiliated to Nanjing Medical University; Suzhou Jiangsu 215008 China
| | - Houyi Sun
- Department of Orthopaedics; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu 215006 China
| | - Jining Shen
- Department of Orthopaedics; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu 215006 China
| | - Jiayi Lin
- Department of Orthopaedics; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu 215006 China
| | - Hongbo Zhang
- Department of Radiology; Affiliated Hospital of Jiangsu University; Zhenjiang Jiangsu 212001 China
| | - Dongqing Wang
- Department of Radiology; Affiliated Hospital of Jiangsu University; Zhenjiang Jiangsu 212001 China
| | - Dechun Geng
- Department of Orthopaedics; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu 215006 China
| | - Guoqing Pan
- Department of Radiology; Affiliated Hospital of Jiangsu University; Zhenjiang Jiangsu 212001 China
- Institute for Advanced Materials; School of Materials Science and Engineering; Jiangsu University; Zhenjiang Jiangsu 212013 China
| |
Collapse
|
23
|
Abstract
In lamellar bone, a network of highly oriented interconnected osteocytes is organized in concentric layers. Through their cellular processes contained within canaliculi, osteocytes are highly mechanosensitive and locally modulate bone remodeling. We review the recent developments demonstrating the significance of the osteocyte lacuno-canalicular network in bone maintenance around implant biomaterials. Drilling during implant site preparation triggers osteocyte apoptosis, the magnitude of which correlates with drilling speed and heat generation, resulting in extensive remodeling and delayed healing. In peri-implant bone, osteocytes physically communicate with implant surfaces via canaliculi and are responsive to mechanical loading, leading to changes in osteocyte numbers and morphology. Certain implant design features allow peri-implant osteocytes to retain a less aged phenotype, despite highly advanced extracellular matrix maturation. Physicochemical properties of anodically oxidized surfaces stimulate bone formation and remodeling by regulating the expression of RANKL (receptor activator of nuclear factor-κB ligand), RANK, and OPG (osteoprotegerin) from implant-adherent cells. Modulation of certain osteocyte-related molecular signaling mechanisms (e.g., sclerostin blockade) may enhance the biomechanical anchorage of implants. Evaluation of the peri-implant osteocyte lacuno-canalicular network should therefore be a necessary component in future investigations of osseointegration to more completely characterize the biological response to materials for load-bearing applications in dentistry and orthopedics.
Collapse
Affiliation(s)
- F A Shah
- 1 Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - P Thomsen
- 1 Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - A Palmquist
- 1 Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| |
Collapse
|
24
|
Geng T, Sun S, Yu H, Guo H, Zheng M, Zhang S, Chen X, Jin Q. Strontium ranelate inhibits wear particle-induced aseptic loosening in mice. ACTA ACUST UNITED AC 2018; 51:e7414. [PMID: 29995108 PMCID: PMC6050946 DOI: 10.1590/1414-431x20187414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 05/17/2018] [Indexed: 11/21/2022]
Abstract
The imbalance between bone formation and osteolysis plays a key role in the pathogenesis of aseptic loosening. Strontium ranelate (SR) can promote bone formation and inhibit osteolysis. The aim of this study was to explore the role and mechanism of SR in aseptic loosening induced by wear particles. Twenty wild-type (WT) female C57BL/6j mice and 20 sclerostin-/- female C57BL/6j mice were used in this study. Mice were randomly divided into four groups: WT control group, WT SR group, knockout (KO) control group, and KO SR group. We found that SR enhanced the secretion of osteocalcin (0.72±0.007 in WT control group, 0.98±0.010 in WT SR group, P=0.000), Runx2 (0.34±0.005 in WT control group, 0.47±0.010 in WT SR group, P=0.000), β-catenin (1.04±0.05 in WT control group, 1.22±0.02 in WT SR group, P=0.000), and osteoprotegerin (OPG) (0.59±0.03 in WT control group, 0.90±0.02 in WT SR group, P=0.000). SR significantly decreased the level of receptor activator for nuclear factor-κB ligand (RANKL) (1.78±0.08 in WT control group, 1.37±0.06 in WT SR group, P=0.000) and improved the protein ratio of OPG/RANKL, but these effects were not observed in sclerostin-/- mice. Our findings demonstrated that SR enhanced bone formation and inhibited bone resorption in a wear particle-mediated osteolysis model in wild-type mice, and this effect relied mainly on the down-regulation of sclerostin levels to ameliorate the inhibition of the canonical Wnt pathway.
Collapse
Affiliation(s)
- Tianxiang Geng
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Shouxuan Sun
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Haochen Yu
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Haohui Guo
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Mengxue Zheng
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Shuai Zhang
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Xi Chen
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Qunhua Jin
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Ningxia Medical University, Yinchuan, Ningxia, China
| |
Collapse
|
25
|
Meagher MJ, Parwani RN, Virdi AS, Sumner DR. Optimizing a micro-computed tomography-based surrogate measurement of bone-implant contact. J Orthop Res 2018; 36:979-986. [PMID: 28851105 PMCID: PMC5832531 DOI: 10.1002/jor.23716] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 08/19/2017] [Indexed: 02/04/2023]
Abstract
Histology and backscatter scanning electron microscopy (bSEM) are the current gold standard methods for quantifying bone-implant contact (BIC), but are inherently destructive. Microcomputed tomography (μCT) is a non-destructive alternative, but attempts to validate μCT-based assessment of BIC in animal models have produced conflicting results. We previously showed in a rat model using a 1.5 mm diameter titanium implant that the extent of the metal-induced artefact precluded accurate measurement of bone sufficiently close to the interface to assess BIC. Recently introduced commercial laboratory μCT scanners have smaller voxels and improved imaging capabilities, possibly overcoming this limitation. The goals of the present study were to establish an approach for optimizing μCT imaging parameters and to validate μCT-based assessment of BIC. In an empirical parametric study using a 1.5 mm diameter titanium implant, we determined 90 kVp, 88 µA, 1.5 μm isotropic voxel size, 1600 projections/180°, and 750 ms integration time to be optimal. Using specimens from an in vivo rat experiment, we found significant correlations between bSEM and μCT for BIC with the manufacturer's automated analysis routine (r = 0.716, p = 0.003) or a line-intercept method (r = 0.797, p = 0.010). Thus, this newer generation scanner's improved imaging capability reduced the extent of the metal-induced artefact zone enough to permit assessment of BIC. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:979-986, 2018.
Collapse
Affiliation(s)
- Matthew J. Meagher
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL 60612
| | - Rachna N. Parwani
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL 60612,Department of Bioengineering, University of Illinois at Chicago, Chicago, IL 60607,College of Engineering, University of Portsmouth, Portsmouth, UK P01 3DJ
| | - Amarjit S. Virdi
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL 60612
| | - D. Rick Sumner
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL 60612
| |
Collapse
|
26
|
Zhou CH, Shi ZL, Meng JH, Hu B, Zhao CC, Yang YT, Yu W, Chen ZX, Heng BC, Parkman VJA, Jiang S, Zhu HX, Wu HB, Shen WL, Yan SG. Sophocarpine attenuates wear particle-induced implant loosening by inhibiting osteoclastogenesis and bone resorption via suppression of the NF-κB signalling pathway in a rat model. Br J Pharmacol 2018; 175:859-876. [PMID: 29130485 DOI: 10.1111/bph.14092] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 10/31/2017] [Accepted: 11/06/2017] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND AND PURPOSE Aseptic prosthesis loosening, caused by wear particles, is one of the most common causes of arthroplasty failure. Extensive and over-activated osteoclast formation and physiological functioning are regarded as the mechanism of prosthesis loosening. Therapeutic modalities based on inhibiting osteoclast formation and bone resorption have been confirmed to be an effective way of preventing aseptic prosthesis loosening. In this study, we have investigated the effects of sophocarpine (SPC, derived from Sophora flavescens) on preventing implant loosening and further explored the underlying mechanisms. EXPERIMENTAL APPROACH The effects of SPC in inhibiting osteoclastogenesis and bone resorption were evaluated in osteoclast formation, induced in vitro by the receptor activator of NF-κB ligand (RANKL). A rat femoral particle-induced peri-implant osteolysis model was established. Subsequently, micro-CT, histology, mechanical testing and bone turnover were used to assess the effects of SPC in preventing implant loosening. KEY RESULTS In vitro, we found that SPC suppressed osteoclast formation, bone resorption, F-actin ring formation and osteoclast-associated gene expression by inhibiting NF-κB signalling, specifically by targeting IκB kinases. Our in vivo study showed that SPC prevented particle-induced prosthesis loosening by inhibiting osteoclast formation, resulting in reduced periprosthetic bone loss, diminished pseudomembrane formation, improved bone-implant contact, reduced bone resorption-related turnover and enhanced stability of implants. Inhibition of NF-κB signalling by SPC was confirmed in vivo. CONCLUSION AND IMPLICATIONS SPC can prevent implant loosening through inhibiting osteoclast formation and bone resorption. Thus, SPC might be a novel therapeutic agent to prevent prosthesis loosening and for osteolytic diseases.
Collapse
Affiliation(s)
- Chen-He Zhou
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China.,Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA, USA
| | - Zhong-Li Shi
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Jia-Hong Meng
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Bin Hu
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Chen-Chen Zhao
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Yu-Te Yang
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Wei Yu
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Ze-Xin Chen
- Center of Clinical Epidemiology & Biostatistics, Department of Science and Education, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Boon Chin Heng
- Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong
| | | | - Shuai Jiang
- Department of Hand Surgery, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Han-Xiao Zhu
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Hao-Bo Wu
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Wei-Liang Shen
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Shi-Gui Yan
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| |
Collapse
|
27
|
Cassuto J, Folestad A, Göthlin J, Malchau H, Kärrholm J. The key role of proinflammatory cytokines, matrix proteins, RANKL/OPG and Wnt/β-catenin in bone healing of hip arthroplasty patients. Bone 2018; 107:66-77. [PMID: 29129760 DOI: 10.1016/j.bone.2017.11.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 10/01/2017] [Accepted: 11/08/2017] [Indexed: 01/08/2023]
Abstract
INTRODUCTION We still lack understanding of why some implants fail while most remain stable after decades of use. Proinflammatory cytokines, matrix proteins and bone regulating cytokines of the RANKL/OPG (receptor activator of nuclear factor kappa B ligand/osteoprotegerin) and Wnt/β-catenin pathways are mandatory for normal bone repair but their spatial and temporal role in the healing of primary total hip arthroplasties (THA) has not been previously shown. MATERIALS AND METHODS Twenty-four osteoarthritis patients with one-sided well-fixed primary THA were prospectively monitored during 18years (18Y) with repeated blood samples, clinical variables and radiographs. Eighty-one healthy donors divided in three age- and gender-matched groups and twenty osteoarthritis patients awaiting THA and serving as control of the validity of stored plasma in THA patients, were included. Plasma was analyzed for C-reactive protein (CRP), interleukin (IL)-6, IL-8, IL-1β, tumor necrosis factor (TNF)-α, osteopontin (OPN), secreted protein acidic and rich in cysteine (SPARC/osteonectin), osteocalcin (OC), bone specific alkaline phosphatase (BALP), N-terminal propeptide of collagen type I (P1NP), RANKL, OPG, the Wnt agonistic ligands (Wnt)-1 and Wnt-3a, and the Wnt antagonists sclerostin, Dickkopf (Dkk)-1, Dkk-3, Dkk-4, secreted frizzled related protein (sFRP)-1, sFRP-3 and Wnt inhibitory factor-1 (Wif-1). RESULTS Inflammatory mediators in arthroplasty patients (CRP, IL-6, OPN) increased significantly on day one after surgery vs preoperative value (PR) and healthy subjects and returned to baseline at 6W. TNF-α did not change relative preoperative level or healthy subjects. SPARC and OC increased in a biphasic fashion with the primary phase beginning shortly after surgery and lasting 3M (SPARC) and 2Y (OC) while the secondary phase peaked at 1Y (SPARC) and 13Y (OC), with both returning to basal level at 15Y. BALP peaked at 3M after surgery with a return to basal level at 2Y followed by a continuous increase from 5Y until 18Y. P1NP increased immediately after surgery and returned to basal level at 6W followed by a new peak at 10Y returning to basal at 13Y. IL-8 and IL-1β peaked at 5Y post-THA and returned to basal level at 10Y. RANKL/OPG and Wnt/β-catenin remained at preoperative levels until 5Y post-THA when a sustained increase in OPG level, paralleled by a sustained decrease in sclerostin, started and lasted until 18Y. Despite a strong increase by RANKL at 13Y, the OPG/RANKL-ratio remained high between 5Y and 18Y. Dkk-1 and sFRP-1 remained at basal level until 5Y followed by a peak at 7Y and a return to basal level at 15Y. Similarly, RANKL increased after 5Y, peaked at 13Y and returned to basal levels at 18Y, thus coinciding with Wnt-1. In contrast, Wnt3a, Dkk-3, Dkk-4, sFRP-3 and Wif-1 did not differ from preoperative levels or healthy subjects during the course of the follow-up. CONCLUSION The primary peak of proinflammatory cytokines involved in the initiation of bone healing after trauma is in line with previous results. The primary phase of increased matrix proteins, P1NP and BALP paralleled by RANKL, OPG and Wnt/β-catenin remaining at preoperative level until 5Y, support a strong formation of mineralized matrix and to a lesser degree bone during this phase. The secondary proinflammatory peak at 5Y is likely a trigger of coupled bone remodeling and neosynthesis as it is followed by increased levels of the bone anabolic turnover marker, BALP, and mediators of the RANKL/OPG and Wnt/β-catenin pathways. A continuous increase by OPG level and the bone turnover marker, BALP, lasting from 5Y until 18Y and paralleled by a similar decrease in sclerostin level support their being key regulators of bone anabolism, whereas the transient and opposed activities of RANKL, Wnt-1, Dkk-1 and sFRP-1 serve as fine tuning tools during the coupled remodeling phase.
Collapse
Affiliation(s)
- Jean Cassuto
- Orthopedic Research Unit, Department of Orthopedic Surgery, Sahlgrenska University Hospital, Mölndal, Sweden; Institution of Clinical Sciences, Göteborg University, Göteborg, Sweden.
| | - Agnetha Folestad
- Department of Orthopedics, CapioLundby Hospital, Göteborg, Sweden
| | - Jan Göthlin
- Department of Radiology, Sahlgrenska University Hospital, Mölndal, Sweden; Institution of Clinical Sciences, Göteborg University, Göteborg, Sweden
| | - Henrik Malchau
- Orthopedic Research Unit, Department of Orthopedic Surgery, Sahlgrenska University Hospital, Mölndal, Sweden; Department of Orthopedic Surgery, Harvard Medical School, Boston, USA
| | - Johan Kärrholm
- Orthopedic Research Unit, Department of Orthopedic Surgery, Sahlgrenska University Hospital, Mölndal, Sweden; Institution of Clinical Sciences, Göteborg University, Göteborg, Sweden
| |
Collapse
|
28
|
Geng T, Sun S, Chen X, Wang B, Guo H, Zhang S, Jin Q. Strontium ranelate reduces the progression of titanium particle-induced osteolysis by increasing the ratio of osteoprotegerin to receptor activator of nuclear factor-κB ligand in vivo. Mol Med Rep 2017; 17:3829-3836. [PMID: 29257329 DOI: 10.3892/mmr.2017.8292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 11/02/2017] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to investigate the effects of strontium ranelate (SR), an anti‑osteoporotic drug, on osteolysis in an experimental mouse model of aseptic loosening. A total of 45 female C57BL/6J mice each received implantation of one titanium alloy pin into the tibia, followed by intraarticular injection of titanium particles. One week following surgery, mice were randomly divided into three groups: Control group (no additional treatment), SR625 group (treated with SR at a dose of 625 mg/kg/day), and SR1800 group (treated with SR at a dose of 1,800 mg/kg/day). SR was administered via oral gavage once every day for 12 weeks. Micro‑computed tomography scanning and hematoxylin/eosin staining were used to assess osteolysis around the prosthesis. Immunohistochemistry and reverse transcription-quantitative polymerase chain reaction analysis were used to measure the expression of receptor activator of nuclear factor‑κB ligand (RANKL) and osteoprotegerin (OPG). Compared with the control, the SR625 and SR1800 groups exhibited a significantly increased pulling force of the titanium alloy pin. Bone volume and the bone surface/volume ratio in the periprosthetic tissue were significantly increased in the SR‑treated groups. Significant differences were observed between the SR1800 group and control group with respect to trabecular thickness and trabecular number. Mechanistically, SR downregulated the expression of RANKL and upregulated the expression of OPG in the periprosthetic tissue. In addition, SR was observed to inhibit wear particle‑associated osteolysis in a dose‑dependent manner. In conclusion, the present data illustrated that SR inhibited titanium particle‑induced osteolysis in vivo.
Collapse
Affiliation(s)
- Tianxiang Geng
- Department of Orthopedic Surgery, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Shouxuan Sun
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Xi Chen
- Department of Orthopedic Surgery, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Bolun Wang
- Department of Orthopedic Surgery, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Haohui Guo
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Shuai Zhang
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Qunhua Jin
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| |
Collapse
|
29
|
Moran MM, Wilson BM, Ross RD, Virdi AS, Sumner DR. Arthrotomy-based preclinical models of particle-induced osteolysis: A systematic review. J Orthop Res 2017; 35:2595-2605. [PMID: 28548682 PMCID: PMC5702596 DOI: 10.1002/jor.23619] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 05/24/2017] [Indexed: 02/04/2023]
Abstract
We completed a systematic literature review of in vivo animal models that use arthrotomy-based methods to study particle-induced peri-implant osteolysis. The purpose of the review was to characterize the models developed to date, to determine the questions addressed, to assess scientific rigor and transparency, and to identify gaps in knowledge. We probed three literature databases (Medline, Embase, and Scopus) and found 77 manuscripts that fit the search parameters. In the most recent 10 years, researchers mainly used rat and mouse models, whereas in the previous 20 years, large animal, canine, and rabbit models were more common. The studies have demonstrated several pathophysiology pathways, including macrophage migration, particle phagocytosis, increased local production of cytokines and lysosomal enzymes, elevated bone resorption, and suppressed bone formation. The effect of variation in particle characteristics and concentration received limited attention with somewhat mixed findings. Particle contamination by endotoxin was shown to exacerbate peri-implant osteolysis. The possibility of early diagnosis was demonstrated through imaging and biomarker approaches. Several studies showed that both local and systemic delivery of bisphosphonates inhibits the development of particle-induced osteolysis. Other methods of inhibiting osteolysis include the use of anabolic agents and altering the implant design. Few studies examined non-surgical rescue of loosened implants, with conflicting results with alendronate. We found that the manuscripts often lacked the methodological detail now advocated by the ARRIVE guidelines, suggesting that improvement in reporting would be useful to maximize rigor and transparency. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:2595-2605, 2017.
Collapse
Affiliation(s)
- Meghan M. Moran
- Department of Anatomy and Cell Biology, Rush University Medical Center
| | | | - Ryan D. Ross
- Department of Anatomy and Cell Biology, Rush University Medical Center
| | - Amarjit S. Virdi
- Department of Anatomy and Cell Biology, Rush University Medical Center
| | | |
Collapse
|
30
|
Amirhosseini M, Madsen RV, Escott KJ, Bostrom MP, Ross FP, Fahlgren A. GSK-3β inhibition suppresses instability-induced osteolysis by a dual action on osteoblast and osteoclast differentiation. J Cell Physiol 2017; 233:2398-2408. [PMID: 28731198 DOI: 10.1002/jcp.26111] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 07/20/2017] [Indexed: 01/17/2023]
Abstract
Currently, there are no medications available to treat aseptic loosening of orthopedic implants. Using osteoprotegerin fusion protein (OPG-Fc), we previously blocked instability-induced osteoclast differentiation and peri-prosthetic osteolysis. Wnt/β-catenin signaling, which regulates OPG secretion from osteoblasts, also modulates the bone tissue response to mechanical loading. We hypothesized that activating Wnt/β-catenin signaling by inhibiting glycogen synthase kinase-3β (GSK-3β) would reduce instability-induced bone loss through regulation of both osteoblast and osteoclast differentiation. We examined effects of GSK-3β inhibition on regulation of RANKL and OPG in a rat model of mechanical instability-induced peri-implant osteolysis. The rats were treated daily with a GSK-3β inhibitor, AR28 (20 mg/kg bw), for up to 5 days. Bone tissue and blood serum were assessed by qRT-PCR, immunohistochemistry, and ELISA on days 3 and 5, and by micro-CT on day 5. After 3 days of treatment with AR28, mRNA levels of β-catenin, Runx2, Osterix, Col1α1, and ALP were increased leading to higher osteoblast numbers compared to vehicle-treated animals. BMP-2 and Wnt16 mRNA levels were downregulated by mechanical instability and this was rescued by GSK-3β inhibition. Osteoclast numbers were decreased significantly after 3 days of GSK-3β inhibition, which correlated with enhanced OPG mRNA expression. This was accompanied by decreased serum levels of TRAP5b on days 3 and 5. Treatment with AR28 upregulated osteoblast differentiation, while osteoclastogenesis was blunted, leading to increased bone mass by day 5. These data suggest that GSK-3β inactivation suppresses osteolysis through regulating both osteoblast and osteoclast differentiation in a rat model of instability-induced osteolysis.
Collapse
Affiliation(s)
- Mehdi Amirhosseini
- Division of Cell Biology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Rune V Madsen
- Adult Reconstruction and Joint Replacement Service, Hospital for Special Surgery, New York, New York
| | - K Jane Escott
- Scientific Partnering & Alliances, Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Melbourn, UK
| | - Mathias P Bostrom
- Adult Reconstruction and Joint Replacement Service, Hospital for Special Surgery, New York, New York
| | - F Patrick Ross
- Adult Reconstruction and Joint Replacement Service, Hospital for Special Surgery, New York, New York
| | - Anna Fahlgren
- Division of Cell Biology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| |
Collapse
|
31
|
Collignon AM, Amri N, Lesieur J, Sadoine J, Ribes S, Menashi S, Simon S, Berdal A, Rochefort GY, Chaussain C, Gaucher C. Sclerostin Deficiency Promotes Reparative Dentinogenesis. J Dent Res 2017; 96:815-821. [PMID: 28571484 DOI: 10.1177/0022034517698104] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
In humans, the SOST gene encodes sclerostin, an inhibitor of bone growth and remodeling, which also negatively regulates the bone repair process. Sclerostin has also been implicated in tooth formation, but its potential role in pulp healing remains unknown. The aim of this study was to explore the role of sclerostin in reparative dentinogenesis using Sost knockout mice ( Sost-/-). The pulps of the first maxillary molars were mechanically exposed in 3-mo-old Sost-/- and wild-type (WT) mice ( n = 14 mice per group), capped with mineral trioxide aggregate cement, and the cavities were filled with a bonded composite resin. Reparative dentinogenesis was dynamically followed up by micro-computed tomography and characterized by histological analyses. Presurgical analysis revealed a significantly lower pulp volume in Sost-/- mice compared with WT. At 30 and 49 d postsurgery, a large-forming reparative mineralized bridge, associated with osteopontin-positive mineralization foci, was observed in the Sost-/- pulps, whereas a much smaller bridge was detected in WT. At the longer time points, the bridge, which was associated with dentin sialoprotein-positive cells, had expanded in both groups but remained significantly larger in Sost-/- pulps. Sclerostin expression in the healing WT pulps was detected in the cells neighboring the forming dentin bridge. In vitro, mineralization induced by Sost-/- dental pulp cells (DPCs) was also dramatically enhanced when compared with WT DPCs. These observations were associated with an increased Sost expression in WT cells. Taken together, our data show that sclerostin deficiency hastened reparative dentinogenesis after pulp injury, suggesting that the inhibition of sclerostin may constitute a promising therapeutic strategy for improving the healing of damaged pulps.
Collapse
Affiliation(s)
- A-M Collignon
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France.,2 AP-HP, Departments of Odontology, University Hospitals Louis Mourier and Bretonneau "National rare disease center metabolism phosphorus and calcium" (HUPNVS), Rothschild "National rare diseases center MAFACE" (HUEP), Pitié Salpêtrière (HUPSCF) and Albert Chennevier (HUHM), Paris, France
| | - N Amri
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France.,3 INSERM UMRS 1138, Molecular Oral Pathophysiology Team, Paris Diderot and Paris Descartes University USPC, Paris, France
| | - J Lesieur
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - J Sadoine
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - S Ribes
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - S Menashi
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - S Simon
- 2 AP-HP, Departments of Odontology, University Hospitals Louis Mourier and Bretonneau "National rare disease center metabolism phosphorus and calcium" (HUPNVS), Rothschild "National rare diseases center MAFACE" (HUEP), Pitié Salpêtrière (HUPSCF) and Albert Chennevier (HUHM), Paris, France.,3 INSERM UMRS 1138, Molecular Oral Pathophysiology Team, Paris Diderot and Paris Descartes University USPC, Paris, France
| | - A Berdal
- 2 AP-HP, Departments of Odontology, University Hospitals Louis Mourier and Bretonneau "National rare disease center metabolism phosphorus and calcium" (HUPNVS), Rothschild "National rare diseases center MAFACE" (HUEP), Pitié Salpêtrière (HUPSCF) and Albert Chennevier (HUHM), Paris, France.,3 INSERM UMRS 1138, Molecular Oral Pathophysiology Team, Paris Diderot and Paris Descartes University USPC, Paris, France
| | - G Y Rochefort
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - C Chaussain
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France.,2 AP-HP, Departments of Odontology, University Hospitals Louis Mourier and Bretonneau "National rare disease center metabolism phosphorus and calcium" (HUPNVS), Rothschild "National rare diseases center MAFACE" (HUEP), Pitié Salpêtrière (HUPSCF) and Albert Chennevier (HUHM), Paris, France
| | - C Gaucher
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France.,2 AP-HP, Departments of Odontology, University Hospitals Louis Mourier and Bretonneau "National rare disease center metabolism phosphorus and calcium" (HUPNVS), Rothschild "National rare diseases center MAFACE" (HUEP), Pitié Salpêtrière (HUPSCF) and Albert Chennevier (HUHM), Paris, France
| |
Collapse
|
32
|
Shu R, Ai D, Bai D, Song J, Zhao M, Han X. The effects of SOST on implant osseointegration in ovariectomy osteoporotic mice. Arch Oral Biol 2016; 74:82-91. [PMID: 27918899 DOI: 10.1016/j.archoralbio.2016.11.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 11/15/2016] [Accepted: 11/20/2016] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Osteoporosis is a risk factor for implant fixation failure. The inhibition of sclerostin effectively improves bone formation and bone remodeling. Therefore, this study investigated whether SOST deficiency enhances the osseointegration of implants in a mouse model of osteoporosis induced by ovariectomy (OVX). DESIGN Osteoporosis was induced in female C57BL/6 and SOST deficient mice by OVX. Titanium implants were placed in the bilateral distal aspects of the femurs. Implants underwent sandblasting and acid-etching after which the structure, surface roughness and chemical components were investigated using scanning electron microscopy (SEM) and energy spectrum analyses. Undecalcified slices, μ-CT, histology analyses and mechanical tests were used to evaluate the osseointegration of implants. The results were compared using one-way ANOVA between four groups. RESULTS Sandblasting and acid-etching increased the roughness of the implants. OVX surgery reduced bone formation around the implants in both WT and SOST-/- mice. However, implant osseointegration was significantly improved in the SOST-/- OVX mice compared to the WT OVX mice. CONCLUSIONS Inhibition of the SOST gene improved implant fixation in the OVX osteoporotic mice, which suggests a strategy for enhancing implant osseointegration in clinical patients with osteoporosis.
Collapse
Affiliation(s)
- Rui Shu
- Department of Orthodontics and Pediatric Dentistry, State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, 14, 3rd Sec, Renminnan Rd, Chengdu, Sichuan 610041, China.
| | - Dongqing Ai
- Department of Orthodontics, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Stomatological Hospital of Chongqing Medical University, Chongqing, China.
| | - Ding Bai
- Department of Orthodontics and Pediatric Dentistry, State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, 14, 3rd Sec, Renminnan Rd, Chengdu, Sichuan 610041, China.
| | - Jinlin Song
- Department of Orthodontics, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Stomatological Hospital of Chongqing Medical University, Chongqing, China.
| | - Mengyuan Zhao
- Department of Orthodontics and Pediatric Dentistry, State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, 14, 3rd Sec, Renminnan Rd, Chengdu, Sichuan 610041, China.
| | - Xianglong Han
- Department of Orthodontics and Pediatric Dentistry, State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, 14, 3rd Sec, Renminnan Rd, Chengdu, Sichuan 610041, China.
| |
Collapse
|
33
|
Sartori M, Vincenzi F, Ravani A, Cepollaro S, Martini L, Varani K, Fini M, Tschon M. RAW 264.7 co-cultured with ultra-high molecular weight polyethylene particles spontaneously differentiate into osteoclasts: an in vitro model of periprosthetic osteolysis. J Biomed Mater Res A 2016; 105:510-520. [PMID: 27667508 DOI: 10.1002/jbm.a.35912] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 09/07/2016] [Accepted: 09/20/2016] [Indexed: 12/19/2022]
Abstract
Wear-particle osteolysis affects prosthesis survival leading to implant loosening up to 70% of revisions. Therapeutic strategies are increasing, however alternative testing methods to experimentally evaluate such treatments are lacking. The aim of this study was to reproduce an in vitro osteolysis model recapitulating the events that, starting from the exposure of macrophages to polyethylene, lead to the establishment of osteoclastogenesis and inflammation. Responses to polyethylene, at 3 and 7 days, in a macrophage cell line, RAW 264.7, were determined by DNA quantification, immunofluorescence, pit assay, gene expression, cytokine production and NF-kB activation. Results showed that 3 days exposure to particles could induce a significant production of Tumor Necrosis Factor alpha (p < 0.0005) and Prostaglandin E2 (p < 0.005) compared to controls. Particles also induced macrophages to spontaneously differentiate into mature and active osteoclasts, in terms of identification of multinucleated cells by Phalloidin staining and by the analysis of osteoclast-specific gene markers. In particular, at 3 days polyethylene induced a significant up-regulation of Nuclear Factor of Activated T-cells, cytoplasmic 1, Receptor Activator of Nuclear factor Kappa-B and Receptor Activator of Nuclear Factor Kappa-B Ligand genes (p < 0.0005) compared to controls. At protein level, the particles induced a significant increase of Receptor Activator of Nuclear Factor Kappa-B Ligand at day 7 over controls (p < 0.0005). Osteoclasts were capable to resorb bone even in absence of differentiating factors. The possible mechanism, beside spontaneous osteoclastogenesis mediated by wear debris, was identified in an autocrine up-regulation of Receptor activator of nuclear factor kappa-B ligand gene expression and protein synthesis. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 510-520, 2017.
Collapse
Affiliation(s)
- M Sartori
- Laboratory of Biocompatibility, Technological Innovations and Advanced Therapies, BITTA, Rizzoli Orthopaedic Institute- Research, Innovation and Technology Department (RIT), via di Barbiano 1/10, 40136, Bologna, Italy
| | - F Vincenzi
- Laboratory of Cellular and Molecular Pharmacology Department of Medical Sciences, University of Ferrara, via Fossato di Mortara 17-19, Ferrara, 44121, Italy
| | - A Ravani
- Laboratory of Cellular and Molecular Pharmacology Department of Medical Sciences, University of Ferrara, via Fossato di Mortara 17-19, Ferrara, 44121, Italy
| | - S Cepollaro
- Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, via di Barbiano 1/10, Bologna, 40136, Italy
| | - L Martini
- Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, via di Barbiano 1/10, Bologna, 40136, Italy
| | - K Varani
- Laboratory of Cellular and Molecular Pharmacology Department of Medical Sciences, University of Ferrara, via Fossato di Mortara 17-19, Ferrara, 44121, Italy
| | - M Fini
- Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, via di Barbiano 1/10, Bologna, 40136, Italy
| | - M Tschon
- Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, via di Barbiano 1/10, Bologna, 40136, Italy
| |
Collapse
|
34
|
Intramembranous bone regeneration and implant placement using mechanical femoral marrow ablation: rodent models. BONEKEY REPORTS 2016; 5:837. [PMID: 27648259 DOI: 10.1038/bonekey.2016.61] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 07/19/2016] [Indexed: 12/16/2022]
Abstract
In this paper, we provide a detailed protocol for a model of long bone mechanical marrow ablation in the rodent, including surgical procedure, anesthesia, and pre- and post-operative care. In addition, frequently used experimental end points are briefly discussed. This model was developed to study intramembranous bone regeneration following surgical disruption of the marrow contents of long bones. In this model, the timing of the appearance of bone formation and remodeling is well-characterized and therefore the model is well-suited to evaluate the in vivo effects of various agents which influence these processes. When biomaterials such as tissue engineering scaffolds or metal implants are placed in the medullary cavity after marrow ablation, end points relevant to tissue engineering and implant fixation can also be analyzed. By sharing a detailed protocol, we hope to improve inter-laboratory reproducibility.
Collapse
|
35
|
MacNabb C, Patton D, Hayes JS. Sclerostin Antibody Therapy for the Treatment of Osteoporosis: Clinical Prospects and Challenges. J Osteoporos 2016; 2016:6217286. [PMID: 27313945 PMCID: PMC4899597 DOI: 10.1155/2016/6217286] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 04/21/2016] [Indexed: 01/22/2023] Open
Abstract
It is estimated that over 200 million adults worldwide have osteoporosis, a disease that has increasing socioeconomic impact reflected by unsustainable costs associated with disability, fracture management, hospital stays, and treatment. Existing therapeutic treatments for osteoporosis are associated with a variety of issues relating to use, clinical predictability, and health risks. Consequently, additional novel therapeutic targets are increasingly sought. A promising therapeutic candidate is sclerostin, a Wnt pathway antagonist and, as such, a negative regulator of bone formation. Sclerostin antibody treatment has demonstrated efficacy and superiority compared to other anabolic treatments for increasing bone formation in both preclinical and clinical settings. Accordingly, it has been suggested that sclerostin antibody treatment is set to achieve market approval by 2017 and aggressively compete as the gold standard for osteoporotic treatment by 2021. In anticipation of phase III trial results which may potentially signify a significant step in achieving market approval here, we review the preclinical and clinical emergence of sclerostin antibody therapies for both osteoporosis and alternative applications. Potential clinical challenges are also explored as well as ongoing developments that may impact on the eventual clinical application of sclerostin antibodies as an effective treatment of osteoporosis.
Collapse
Affiliation(s)
- Claire MacNabb
- Regenerative Medicine Institute, NUI Galway, Biosciences Research Building, Corrib Village, Dangan, Galway, Ireland
| | - D. Patton
- Regenerative Medicine Institute, NUI Galway, Biosciences Research Building, Corrib Village, Dangan, Galway, Ireland
| | - J. S. Hayes
- Regenerative Medicine Institute, NUI Galway, Biosciences Research Building, Corrib Village, Dangan, Galway, Ireland
| |
Collapse
|
36
|
Langlois J, Zaoui A, Bichara DA, Nich C, Bensidhoum M, Petite H, Muratoglu OK, Hamadouche M. Biological reaction to polyethylene particles in a murine calvarial model is highly influenced by age. J Orthop Res 2016; 34:574-80. [PMID: 26375608 DOI: 10.1002/jor.23050] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 09/09/2015] [Indexed: 02/04/2023]
Abstract
Particle-induced osteolysis is driven by multiple factors including bone metabolism, inflammation, and age. The objective of this study was to determine the influence of age on polyethylene (PE) particle-induced osteolysis in a murine calvarial model comparing 2-month-old (young) versus 24-month-old (old) mice. After PE particle implantation, calvaria were assessed at days (D) 3, D7, D14, and D21 via chemoluminescent imaging for inflammation (L-012 probe). In addition micro-computed tomography (micro-CT) and histomorphometry end points addressed the bone reaction. Inflammation peaked at D7 in young mice and D14 in old mice. Using micro-CT, a nadir of mature bone was recorded at D7 for young mice, versus D21 for old mice. Besides, regenerating bone peaked at distinct timepoints: D7 for young mice versus D21 for old mice. In the young mice group, the histomorphometric findings correlated with micro-CT regenerating bone findings at D7, associated with ample osteoïd deposition. No osteoïd could be histologically quantified in the old mice group at D7. This study demonstrated that the biological reaction to polyethylene particles is highly influenced by age.
Collapse
Affiliation(s)
- Jean Langlois
- Harris Orthopaedic Laboratory, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, GRJ 1231, Boston, Massachusetts, 02114.,Laboratoire de Bioingénierie et Biomécanique Ostéo-articulaires, UMR CNRS 7052, Faculté de Médecine Paris 7-Denis Diderot, 10, Avenue de Verdun, 75010, Paris, France
| | - Amine Zaoui
- Laboratoire de Bioingénierie et Biomécanique Ostéo-articulaires, UMR CNRS 7052, Faculté de Médecine Paris 7-Denis Diderot, 10, Avenue de Verdun, 75010, Paris, France
| | - David A Bichara
- Harris Orthopaedic Laboratory, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, GRJ 1231, Boston, Massachusetts, 02114
| | - Christophe Nich
- Laboratoire de Bioingénierie et Biomécanique Ostéo-articulaires, UMR CNRS 7052, Faculté de Médecine Paris 7-Denis Diderot, 10, Avenue de Verdun, 75010, Paris, France
| | - Morad Bensidhoum
- Laboratoire de Bioingénierie et Biomécanique Ostéo-articulaires, UMR CNRS 7052, Faculté de Médecine Paris 7-Denis Diderot, 10, Avenue de Verdun, 75010, Paris, France
| | - Hervé Petite
- Laboratoire de Bioingénierie et Biomécanique Ostéo-articulaires, UMR CNRS 7052, Faculté de Médecine Paris 7-Denis Diderot, 10, Avenue de Verdun, 75010, Paris, France
| | - Orhun K Muratoglu
- Harris Orthopaedic Laboratory, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, GRJ 1231, Boston, Massachusetts, 02114
| | - Moussa Hamadouche
- Laboratoire de Bioingénierie et Biomécanique Ostéo-articulaires, UMR CNRS 7052, Faculté de Médecine Paris 7-Denis Diderot, 10, Avenue de Verdun, 75010, Paris, France
| |
Collapse
|
37
|
Schoeman MA, Moester MJ, Oostlander AE, Kaijzel EL, Valstar ER, Nelissen RG, Löwik CW, Rooij KE. Inhibition of GSK3β Stimulates BMP Signaling and DecreasesSOSTExpression Which Results in Enhanced Osteoblast Differentiation. J Cell Biochem 2015; 116:2938-46. [DOI: 10.1002/jcb.25241] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 05/26/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Monique A.E. Schoeman
- Department of Orthopaedics; Leiden University Medical Center; Leiden The Netherlands
| | | | - Angela E. Oostlander
- Department of Orthopaedics; Leiden University Medical Center; Leiden The Netherlands
| | - Eric L. Kaijzel
- Department of Radiology; Leiden University Medical Center; Leiden The Netherlands
| | - Edward R. Valstar
- Department of Orthopaedics; Leiden University Medical Center; Leiden The Netherlands
- Department of Biomechanical Engineering; Delft University of Technology; Delft The Netherlands
| | - Rob G.H.H. Nelissen
- Department of Orthopaedics; Leiden University Medical Center; Leiden The Netherlands
| | - Clemens W.G.M. Löwik
- Department of Radiology; Leiden University Medical Center; Leiden The Netherlands
| | - Karien E.de Rooij
- Department of Radiology; Leiden University Medical Center; Leiden The Netherlands
- Percuros BV; Enschede; The Netherlands
| |
Collapse
|
38
|
Bi F, Shi Z, Zhou C, Liu A, Shen Y, Yan S. Intermittent Administration of Parathyroid Hormone [1-34] Prevents Particle-Induced Periprosthetic Osteolysis in a Rat Model. PLoS One 2015; 10:e0139793. [PMID: 26441073 PMCID: PMC4595472 DOI: 10.1371/journal.pone.0139793] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 09/17/2015] [Indexed: 11/19/2022] Open
Abstract
We examined whether intermittent administration of parathyroid hormone [1-34] (PTH[1-34]; 60 μg/kg/day) can prevent the negative effects of titanium (Ti) particles on implant fixation and periprosthetic osteolysis in a rat model. Eighteen adult male rats (12 weeks old, bones still growing) received intramedullary Ti implants in their bilateral femurs; 6 rats from the blank group received vehicle injections, and 12 rats from the control group and PTH treatment group received Ti particle injections at the time of operation and intra-articular injections 2 and 4 weeks postoperatively. Six of the rats that received Ti particles from the PTH group also received PTH[1-34] treatment. Six weeks postoperatively, all specimens were collected for assessment by X-ray, micro-CT, biomechanical, scanning electron microscopy (SEM), and dynamic histomorphometry. A lower BMD, BV/TV, Tb.N, maximal fixation strength, and mineral apposition rate were observed in the control group compared to the blank group, demonstrating that a periprosthetic osteolysis model had been successfully established. Administration of PTH[1-34] significantly increased the bone mineral density of the distal femur, BV/TV, Tb.N, Tb.Th, Tb.Sp, Con.D, SMI, and maximal fixation strength in the PTH group compared to that in the control group. SEM revealed higher bone-implant contact, thicker lamellar bone, and larger trabecular bone area in the PTH group than in the control group. A higher mineral apposition rate was observed in the PTH group compared to both the blank and control groups. These findings imply that intermittent administration of PTH[1-34] prevents periprosthetic osteolysis by promoting bone formation. The effects of PTH[1-34] were evaluated at a suprapharmacological dosage to the human equivalent in rats; therefore, additional studies are required to demonstrate its therapeutic potential in periprosthetic osteolysis.
Collapse
Affiliation(s)
- Fanggang Bi
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhongli Shi
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Chenhe Zhou
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - An Liu
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yue Shen
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shigui Yan
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- * E-mail:
| |
Collapse
|
39
|
Abstract
WNTs are extracellular proteins that activate different cell surface receptors linked to canonical and noncanonical WNT signalling pathways. The Wnt genes were originally discovered as important for embryonic development of fruit flies and malignant transformation of mouse mammary cancers. More recently, WNTs have been implicated in a wide spectrum of biological phenomena and diseases. During the last decade, several lines of clinical and preclinical evidence have indicated that WNT signalling is critical for trabecular and cortical bone mass, and this pathway is currently an attractive target for drug development. Based on detailed knowledge of the different WNT signalling pathways, it appears that it might be possible to develop drugs that specifically target cortical and trabecular bone. Neutralization of a bone-specific WNT inhibitor is now being evaluated as a promising anabolic treatment for patients with osteoporosis. Here, we provide the historical background to the discoveries of WNTs, describe the different WNT signalling pathways and summarize the current understanding of how these proteins regulate bone mass by affecting bone formation and resorption.
Collapse
Affiliation(s)
- U H Lerner
- Centre for Bone and Arthritis Research, Institute for Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.,Department of Molecular Periodontology, Umeå University, Umeå, Sweden
| | - C Ohlsson
- Centre for Bone and Arthritis Research, Institute for Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| |
Collapse
|
40
|
Virdi AS, Irish J, Sena K, Liu M, Ke HZ, McNulty MA, Sumner DR. Sclerostin antibody treatment improves implant fixation in a model of severe osteoporosis. J Bone Joint Surg Am 2015; 97:133-40. [PMID: 25609440 DOI: 10.2106/jbjs.n.00654] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND The mechanical fixation of orthopaedic and dental implants is compromised by diminished bone volume, such as with osteoporosis. Systemic administration of sclerostin antibody (Scl-Ab) has been shown to enhance implant fixation in normal animals. In the present study, we tested whether Scl-Ab can improve implant fixation in established osteoporosis in a rat model. METHODS We used an ovariectomized (ovx) rat model, in which we found a 78% decrease in trabecular bone volume at the time of implant surgery; sham-ovx, age-matched rats were used as controls. After placement of a titanium implant in the medullary cavity of the distal aspect of the femur, the rats were maintained for four, eight, or twelve weeks and treated biweekly with Scl-Ab or with the delivery vehicle alone. Outcomes were measured with use of microcomputed tomography, mechanical testing, and static and dynamic histomorphometry. RESULTS Scl-Ab treatment doubled implant fixation strength in both the sham-ovx and ovx groups, although the enhancement was delayed in the ovx group. Scl-Ab treatment also enhanced bone-implant contact; increased peri-implant trabecular thickness and volume; and increased cortical thickness. These structural changes were associated with an approximately five to sevenfold increase in the bone-formation rate and a >50% depression in the eroded surface following Scl-Ab treatment. Trabecular bone thickness and bone-implant contact accounted for two-thirds of the variance in fixation strength. CONCLUSIONS In this model of severe osteoporosis, Scl-Ab treatment enhanced implant fixation by stimulating bone formation and suppressing bone resorption, leading to enhanced bone-implant contact and improved trabecular bone volume and architecture. CLINICAL RELEVANCE Systemic administration of anti-sclerostin antibodies might be a useful strategy in total joint replacement when bone mass is deficient.
Collapse
Affiliation(s)
- Amarjit S Virdi
- Department of Anatomy and Cell Biology, Rush University Medical Center, 600 South Paulina Street, Suite 507, Chicago, IL 60612. E-mail address for A.S. Virdi:
| | - John Irish
- Department of Anatomy and Cell Biology, Rush University Medical Center, 600 South Paulina Street, Suite 507, Chicago, IL 60612. E-mail address for A.S. Virdi:
| | - Kotaro Sena
- Department of Periodontology, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Min Liu
- Metabolic Disorders, Amgen, Inc., One Amgen Center Drive, 29-1-A, Thousand Oaks, CA 91320
| | - Hua Zhu Ke
- Metabolic Disorders, Amgen, Inc., One Amgen Center Drive, 29-1-A, Thousand Oaks, CA 91320
| | - Margaret A McNulty
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Skip Bertman Drive, Baton Rouge, LA 70803
| | - Dale R Sumner
- Department of Anatomy and Cell Biology, Rush University Medical Center, 600 South Paulina Street, Suite 507, Chicago, IL 60612. E-mail address for A.S. Virdi:
| |
Collapse
|
41
|
Do genetic susceptibility, Toll-like receptors, and pathogen-associated molecular patterns modulate the effects of wear? Clin Orthop Relat Res 2014; 472:3709-17. [PMID: 25034980 PMCID: PMC4397765 DOI: 10.1007/s11999-014-3786-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Overwhelming evidence supports the concept that wear particles are the primary initiator of aseptic loosening of orthopaedic implants. It is likely, however, that other factors modulate the biologic response to wear particles. This review focuses on three potential other factors: genetic susceptibility, Toll-like receptors (TLRs), and bacterial pathogen-associated molecular patterns (PAMPs). WHERE ARE WE NOW?: Considerable evidence is emerging that both genetic susceptibility and TLR activation are important factors that modulate the biologic response to wear particles, but it remains controversial whether bacterial PAMPs also do so. WHERE DO WE NEED TO GO?: Detailed understanding of the roles of these other factors may lead to identification of novel therapeutic targets for patients with aseptic loosening. HOW DO WE GET THERE?: Highest priority should be given to polymorphism replication studies with large numbers of patients and studies to replicate the reported correlation between bacterial biofilms and the severity of aseptic loosening.
Collapse
|
42
|
Smith RL, Schwarz EM. Are biologic treatments a potential approach to wear- and corrosion-related problems? Clin Orthop Relat Res 2014; 472:3740-6. [PMID: 24993143 PMCID: PMC4397762 DOI: 10.1007/s11999-014-3765-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
WHERE ARE WE NOW?: Biological treatments, defined as any nonsurgical intervention whose primary mechanism of action is reducing the host response to wear and/or corrosion products, have long been postulated as solutions for osteolysis and aseptic loosening of total joint arthroplasties. Despite extensive research on drugs that target the inflammatory, osteoclastic, and osteogenic responses to wear debris, no biological treatment has emerged as an approved therapy. We review the extensive preclinical research and modest clinical research to date, which has led to the central conclusion that the osteoclast is the primary target. We also allude to the significant changes in health care, unabated safety concerns about chronic immunosuppressive/antiinflammatory therapies, industry's complete lack of interest in developing an intervention for this condition, and the practical issues that have narrowly focused the possibilities for a biologic treatment for wear debris-induced osteolysis. WHERE DO WE NEED TO GO?: Based on the conclusions from research, and the economic, regulatory, and practical issues that limit the future directions toward the development of a biologic treatment, there are a few rational approaches that warrant investigation. These largely focus on FDA-approved osteoporosis therapies that target the osteoclast (bisphosphonates and anti-RANK ligand) and recombinant parathyroid hormone (teriparatide) prophylactic treatment to increase osseous integration of the prosthesis to overcome high-risk susceptibility to aseptic loosening. The other roadblock that must be overcome if there is to be an approved biologic therapy to prevent the progression of periprosthetic osteolysis and aseptic loosening is the development of radiological measures that can quantify a significant drug effect in a randomized, placebo-controlled clinical trial. We review the progress of volumetric quantification of osteolysis in animal studies and clinical pilots. HOW DO WE GET THERE?: Accepting the aforementioned rigid boundaries, we describe the emergence of repurposing FDA-approved drugs for new indications and public (National Institutes of Health, FDA, Centers for Disease Control and Prevention) and private (universities and drug and device manufactures) partnerships as the future roadmap for clinical translation. In the case of biologic treatments for wear debris-induced osteolysis, this will involve combined federal and industry funding of multicenter clinical trials that will be run by thought leaders at large medical centers.
Collapse
Affiliation(s)
- R. Lane Smith
- Department of Orthopaedic Surgery, Stanford University, Redwood City, CA USA
| | - Edward M. Schwarz
- Department of Orthopaedics, University of Rochester, Rochester, NY USA ,The Center for Musculoskeletal Research, University of Rochester Medical Center, 601 Elmwood Avenue, Box 665, Rochester, NY 14642 USA
| |
Collapse
|
43
|
Abstract
➤ Osteocytes, derived from osteoblasts, reside within bone and communicate extensively with other bone cell populations to regulate bone metabolism. The mature osteocyte expresses the protein sclerostin, a negative regulator of bone mass.➤ In normal physiologic states, the protein sclerostin acts on osteoblasts at the surface of bone and is differentially expressed in response to mechanical loading, inflammatory molecules such as prostaglandin E2, and hormones such as parathyroid hormone and estrogen.➤ Pathologically, sclerostin dysregulation has been observed in osteoporosis-related fractures, failure of implant osseous integration, metastatic bone disease, and select genetic diseases of bone mass.➤ An antibody that targets sclerostin, decreasing endogenous levels of sclerostin while increasing bone mineral density, is currently in phase-III clinical trials.➤ The osteocyte has emerged as a versatile, indispensable bone cell. Its location within bone, extensive dendritic network, and close communication with systemic circulation and other bone cells produce many opportunities to treat a variety of orthopaedic conditions.
Collapse
Affiliation(s)
- Jocelyn T. Compton
- Center for Orthopaedic Research at Columbia University Medical Center, 650 West 168th Street, Box #480 (J.T.C.), Black Building 1412 (F.Y.L.), New York, NY 10032. E-mail address for J.T. Compton: . E-mail address for F.Y. Lee:
| | - Francis Y. Lee
- Center for Orthopaedic Research at Columbia University Medical Center, 650 West 168th Street, Box #480 (J.T.C.), Black Building 1412 (F.Y.L.), New York, NY 10032. E-mail address for J.T. Compton: . E-mail address for F.Y. Lee:
| |
Collapse
|
44
|
Ross RD, Edwards LH, Acerbo AS, Ominsky MS, Virdi AS, Sena K, Miller LM, Sumner DR. Bone matrix quality after sclerostin antibody treatment. J Bone Miner Res 2014; 29:1597-607. [PMID: 24470143 DOI: 10.1002/jbmr.2188] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 01/21/2014] [Accepted: 01/22/2014] [Indexed: 11/10/2022]
Abstract
Sclerostin antibody (Scl-Ab) is a novel bone-forming agent that is currently undergoing preclinical and clinical testing. Scl-Ab treatment is known to dramatically increase bone mass, but little is known about the quality of the bone formed during treatment. In the current study, global mineralization of bone matrix in rats and nonhuman primates treated with vehicle or Scl-Ab was assayed by backscattered scanning electron microscopy (bSEM) to quantify the bone mineral density distribution (BMDD). Additionally, fluorochrome labeling allowed tissue age-specific measurements to be made in the primate model with Fourier-transform infrared microspectroscopy to determine the kinetics of mineralization, carbonate substitution, crystallinity, and collagen cross-linking. Despite up to 54% increases in the bone volume after Scl-Ab treatment, the mean global mineralization of trabecular and cortical bone was unaffected in both animal models investigated. However, there were two subtle changes in the BMDD after Scl-Ab treatment in the primate trabecular bone, including an increase in the number of pixels with a low mineralization value (Z5) and a decrease in the standard deviation of the distribution. Tissue age-specific measurements in the primate model showed that Scl-Ab treatment did not affect the mineral-to-matrix ratio, crystallinity, or collagen cross-linking in the endocortical, intracortical, or trabecular compartments. Scl-Ab treatment was associated with a nonsignificant trend toward accelerated mineralization intracortically and a nearly 10% increase in carbonate substitution for tissue older than 2 weeks in the trabecular compartment (p < 0.001). These findings suggest that Scl-Ab treatment does not negatively impact bone matrix quality.
Collapse
Affiliation(s)
- Ryan D Ross
- Department of Anatomy and Cell Biology, Rush University Medical Center, Chicago, IL, USA
| | | | | | | | | | | | | | | |
Collapse
|
45
|
Ross RD, Virdi AS, Liu S, Sena K, Sumner DR. Particle-induced osteolysis is not accompanied by systemic remodeling but is reflected by systemic bone biomarkers. J Orthop Res 2014; 32:967-73. [PMID: 24604767 DOI: 10.1002/jor.22607] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Accepted: 02/06/2014] [Indexed: 02/04/2023]
Abstract
Particle-induced osteolysis is caused by an imbalance in bone resorption and formation, often leading to loss of implant fixation. Bone remodeling biomarkers may be useful for identification of osteolysis and studying pathogenesis, but interpretation of biomarker data could be confounded if local osteolysis engenders systemic bone remodeling. Our goal was to determine if remote bone remodeling contributes to biomarker levels. Serum concentrations of eight biomarkers and bone remodeling rates at local (femur), contiguous (tibia), and remote (humerus and lumbar vertebra) sites were evaluated in a rat model of particle-induced osteolysis. Serum CTX-1, cathepsin K, PINP, and OPG were elevated and osteocalcin was suppressed in the osteolytic group, but RANKL, TRAP 5b, and sclerostin were not affected at the termination of the study at 12 weeks. The one marker tested longitudinally (CTX-1) was elevated by 3 weeks. We found increased bone resorption and decreased bone formation locally, subtle differences in contiguous sites, but no differences remotely at 12 weeks. Thus, the skeletal response to local particle challenge was not systemic, implying that the observed differences in serum biomarker levels reflect differences in local remodeling.
Collapse
Affiliation(s)
- R D Ross
- Anatomy and Cell Biology, Rush University Medical Center, Chicago, Illinois
| | | | | | | | | |
Collapse
|
46
|
Ross RD, Hamilton JL, Wilson BM, Sumner DR, Virdi AS. Pharmacologic augmentation of implant fixation in osteopenic bone. Curr Osteoporos Rep 2014; 12:55-64. [PMID: 24293098 DOI: 10.1007/s11914-013-0182-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Osteoporosis presents a challenge for successful implant fixation due to an impaired healing response. Preclinical studies have consistently reported reduced osseointegration capability in trabecular bone. Although clinical studies of implant success in dentistry have not found a negative effect due to osteoporosis, low bone mass is a significant risk factor for implant migration in orthopedics. Pharmacologic treatment options that limit bone resorption or upregulate formation have been studied preclinically. While, both treatment options improve implant fixation, direct comparisons to-date have found anti-catabolic more effective than anabolic treatments for establishing implant fixation, but combination approaches are better than either treatment alone. Clinically, anti-catabolic treatments, particularly bisphosphonates have been shown to increase the longevity of implants, while limited clinical evidence on the effects of anabolic treatment exists. Preclinical experiments are needed to determine the effects of osteoporosis and subsequent treatment on the long-term maintenance of fixation and recovery after bone loss.
Collapse
Affiliation(s)
- R D Ross
- Anatomy and Cell Biology, Rush University Medical Center, 600 S. Paulina Street, Suite # AcFc 507, Chicago, IL, 60612, USA
| | | | | | | | | |
Collapse
|
47
|
Bibliography Current World Literature. CURRENT ORTHOPAEDIC PRACTICE 2013. [DOI: 10.1097/bco.0b013e3182a6a18b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|