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Lyu Z, Meng X, Hu F, Wu Y, Ding Y, Long T, Qu X, Wang Y. Nanoscale ZnO doping in prosthetic polymers mitigate wear particle-induced inflammation and osteolysis through inhibiting macrophage secretory autophagy. Mater Today Bio 2024; 28:101225. [PMID: 39309162 PMCID: PMC11415586 DOI: 10.1016/j.mtbio.2024.101225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 08/27/2024] [Accepted: 09/01/2024] [Indexed: 09/25/2024] Open
Abstract
Wear particles produced by joint replacements induce inflammatory responses that lead to periprosthetic osteolysis and aseptic loosening. However, the precise mechanisms driving wear particle-induced osteolysis are not fully understood. Recent evidence suggests that autophagy, a cellular degradation process, plays a significant role in this pathology. This study aimed to clarify the role of autophagy in mediating inflammation and osteolysis triggered by wear particles and to evaluate the therapeutic potential of zinc oxide nanoparticles (ZnO NPs). We incorporated ZnO into the prosthetic material itself, ensuring that the wear particles inherently carried ZnO, providing a targeted and sustained intervention. Our findings reveal that polymer wear particles induce excessive autophagic activity, which is closely associated with increased inflammation and osteolysis. We identified secretory autophagy as a key mechanism for IL-1β secretion, exacerbating osteolysis. Both in vitro and in vivo experiments demonstrated that ZnO-doped particles significantly inhibit autophagic overactivation, thereby reducing inflammation and osteolysis. In summary, this study establishes secretory autophagy as a critical mechanism in wear particle-induced osteolysis and highlights the potential of ZnO-doped prosthetic polymers for targeted, sustained mitigation of periprosthetic osteolysis.
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Affiliation(s)
- Zhuocheng Lyu
- Department of Bone and Joint Surgery, Department of Orthopedics, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Xiangchao Meng
- Department of Orthopedics, Minhang Hospital, Fudan University, Shanghai, China
| | - Fei Hu
- Department of Bone and Joint Surgery, Department of Orthopedics, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Yuezhou Wu
- Department of Bone and Joint Surgery, Department of Orthopedics, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Yurun Ding
- Department of Bone and Joint Surgery, Department of Orthopedics, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Teng Long
- Department of Bone and Joint Surgery, Department of Orthopedics, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Xinhua Qu
- Department of Bone and Joint Surgery, Department of Orthopedics, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - You Wang
- Department of Bone and Joint Surgery, Department of Orthopedics, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
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Su J, Wang J, Yan S, Zhang M, Zhang N, Luan Y, Cheng CK. Wear Analysis of Tibial Inserts Made of Highly Cross-Linked Polyethylene Supplemented with Dodecyl Gallate before and after Accelerated Aging. Polymers (Basel) 2022; 14:polym14235281. [PMID: 36501675 PMCID: PMC9737456 DOI: 10.3390/polym14235281] [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: 11/17/2022] [Revised: 11/25/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
The wear of the tibial insert is one of the primary factors leading to the failure of total knee arthroplasty. As materials age, their wear performance often degrades. Supplementing highly cross-linked polyethylene (HXLPE) with dodecyl gallate (DG) can improve the oxidation stability of tibial inserts for use in total knee arthroplasty (TKA). This study aimed to evaluate the wear resistance of HXLPE supplemented with DG (HXLPE-DG) tibial inserts before and after accelerated aging. HXLPE-DG tibial inserts were subjected to wear testing of up to 5 million loading cycles according to ISO 14243, and the resulting wear particles were analyzed according to ISO 17853. The wear rate, number, size, and shape of the wear particles were analyzed. The average wear rate of the unaged samples was 4.39 ± 0.75 mg/million cycles and was 3.22 ± 1.49 mg/million cycles for the aged samples. The unaged tibial inserts generated about 2.80 × 107 particles/mL following the wear test, but this was considerably lower for the aged samples at about 1.35 × 107 particles/mL. The average equivalent circle diameter (ECD) of the wear particles from the unaged samples was 0.13 μm (max: 0.80 μm; min: 0.04 μm), and it was 0.14 μm (max: 0.66 μm; min: 0.06 μm) from the aged samples. Moreover, 22.1% of the wear particles from the unaged samples had an aspect ratio (AR) of >4 (slender shape), while this was 15.4% for the aged samples. HXLPE-DG improves the wear performance of the material over time. HXLPE-DG is a novel material that has been demonstrated to have antiaging properties and high wear resistance, making it a promising candidate for use in TKA. Nevertheless, the results are preliminary and will be clarified in further studies.
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Affiliation(s)
- Jian Su
- School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
- Beijing Institute of Medical Device Testing, Beijing 101111, China
| | - Jianjun Wang
- Beijing Institute of Medical Device Testing, Beijing 101111, China
| | - Shitong Yan
- Beijing Institute of Medical Device Testing, Beijing 101111, China
| | - Min Zhang
- School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Ningze Zhang
- School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Yichao Luan
- School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Cheng-Kung Cheng
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- Correspondence:
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Hallab NJ, Jacobs JJ. Orthopedic Applications. Biomater Sci 2020. [DOI: 10.1016/b978-0-12-816137-1.00070-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Landgraeber S, Samelko L, McAllister K, Putz S, Jacobs JJ, Hallab NJ. CoCrMo alloy vs. UHMWPE Particulate Implant Debris Induces Sex Dependent Aseptic Osteolysis Responses In Vivo using a Murine Model. Open Orthop J 2018; 12:115-124. [PMID: 29785221 PMCID: PMC5897965 DOI: 10.2174/1874325001812010115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 03/15/2018] [Accepted: 03/16/2018] [Indexed: 11/22/2022] Open
Abstract
Background: The rate of revision for some designs of total hip replacements due to idiopathic aseptic loosening has been reported as higher for women. However, whether this is environmental or inherently sex-related is not clear. Objective: Can particle induced osteolysis be sex dependent? And if so, is this dependent on the type of implant debris (e.g. metal vs polymer)? The objective of this study was to test for material dependent inflammatory osteolysis that may be linked to sex using CoCrMo and implant grade conventional polyethylene (UHMWPE), using an in vivo murine calvaria model. Methods: Healthy 12 week old female and male C57BL/6J mice were treated with UHMWPE (1.0um ECD) or CoCrMo particles (0.9um ECD) or received sham surgery. Bone resorption was assessed by micro-computed tomography, histology and histomorphometry on day 12 post challenge. Results: Female mice that received CoCrMo particles showed significantly more inflammatory osteolysis and bone destruction compared to the females who received UHMWPE implant debris. Moreover, females challenged with CoCrMo particles exhibited 120% more inflammatory bone loss compared to males (p<0.01) challenged with CoCrMo implant debris (but this was not the case for UHMWPE particles). Conclusion: We demonstrated sex-specific differences in the amount of osteolysis resulting from CoCrMo particle challenge. This suggests osteo-immune responses to metal debris are preferentially higher in female compared to male mice, and supports the contention that there may be inherent sex related susceptibility to some types of implant debris.
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Affiliation(s)
- Stefan Landgraeber
- Department of Orthopaedics, University Hospital Essen, University of Duisburg-Essen, Hufelandstrabe 55, 45122 Essen, Germany
| | - Lauryn Samelko
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, U.S.A
| | - Kyron McAllister
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, U.S.A
| | - Sebastian Putz
- Department of Orthopaedics, University Hospital Essen, University of Duisburg-Essen, Hufelandstrabe 55, 45122 Essen, Germany
| | - Joshua J Jacobs
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, U.S.A
| | - Nadim James Hallab
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, U.S.A
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Markhoff J, Zietz C, Fabry C, Fulda G, Bader R. Influence of analyzed lubricant volumes on the amount and characteristics of generated wear particles from three different types of polyethylene liner materials. J Biomed Mater Res B Appl Biomater 2017. [PMID: 28636252 DOI: 10.1002/jbm.b.33944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The articulating components of artificial joints consist mainly of metals, ceramics, or polymers. Resulting abrasive wear particles can promote osteolysis and aseptic loosening of the endo-prosthetic implants. Ultra-high-molecular-weight-polyethylene is the material used most for bearing couples in total hip replacement. In the present study, three types of polyethylene (PE) liners varying in material composition, i.e., (1) conventional PE (C-PE), (2) sequentially cross-linked PE (SX-PE), (3) cross-linked PE blended with vitamin E (EX-PE) articulating with two types of femoral heads were used. After ultrasound treatment of each simulator lubricant, different concentrations (0.1/0.25/0.5/1.0 mL) were taken and dissolved in hydrochloric acid (37%) in a similar manner. The aim was to analyze the characteristics of wear particles generated in a hip simulator, with respect to different volumes of the lubricant. Within the scope of particle analysis, distinct alterations for particle characteristics were determined in the lubricant volumes and types of PE material used. A significant decrease in particle number for SX-PE liners, compared to the C-PE inserts and even more for EX-PE inserts, was detected at each lubricant volume. Particle morphologies varied depending on PE material. Alterations in particle size and other morphologic parameters between the four tested volumes, could be proven for each PE type. In general, particle sizes and parameters (e.g., length and width) increased with increasing serum volumes. In conclusion, the chosen volume of the simulator lubricant used for particle analysis has a crucial influence on detected particle number, size distribution, and morphologic parameters. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1299-1306, 2018.
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Affiliation(s)
- Jana Markhoff
- Department of Orthopaedics, University Medicine Rostock, Biomechanics and Implant Technology Laboratory, Rostock, 18057, Germany
| | - Carmen Zietz
- Department of Orthopaedics, University Medicine Rostock, Biomechanics and Implant Technology Laboratory, Rostock, 18057, Germany
| | - Christian Fabry
- Department of Orthopaedics, University Medicine Rostock, Biomechanics and Implant Technology Laboratory, Rostock, 18057, Germany
| | - Gerhard Fulda
- Centre for Electron Microscopy, University Medicine Rostock, 18057, Rostock, Germany
| | - Rainer Bader
- Department of Orthopaedics, University Medicine Rostock, Biomechanics and Implant Technology Laboratory, Rostock, 18057, Germany
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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.
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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
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Kauther MD, Neuerburg C, Wefelnberg F, Bachmann HS, Schlepper R, Hilken G, Broecker-Preuss M, Grabellus F, Schilling AF, Jäger M, Wedemeyer C. RANKL-associated suppression of particle-induced osteolysis in an aged model of Calcitonin and α-CGRP deficiency. Biomaterials 2013; 34:2911-9. [DOI: 10.1016/j.biomaterials.2013.01.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2012] [Accepted: 01/04/2013] [Indexed: 12/15/2022]
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Early fixation of cobalt-chromium based alloy surgical implants to bone using a tissue-engineering approach. Int J Mol Sci 2012; 13:5528-5541. [PMID: 22754313 PMCID: PMC3382757 DOI: 10.3390/ijms13055528] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2012] [Revised: 04/25/2012] [Accepted: 05/03/2012] [Indexed: 11/17/2022] Open
Abstract
To establish the methods of demonstrating early fixation of metal implants to bone, one side of a Cobalt-Chromium (CoCr) based alloy implant surface was seeded with rabbit marrow mesenchymal cells and the other side was left unseeded. The mesenchymal cells were further cultured in the presence of ascorbic acid, β-glycerophosphate and dexamethasone, resulting in the appearance of osteoblasts and bone matrix on the implant surface. Thus, we succeeded in generating tissue-engineered bone on one side of the CoCr implant. The CoCr implants were then implanted in rabbit bone defects. Three weeks after the implantation, evaluations of mechanical test, undecalcified histological section and electron microscope analysis were performed. Histological and electron microscope images of the tissue engineered surface exhibited abundant new bone formation. However, newly formed bone tissue was difficult to detect on the side without cell seeding. In the mechanical test, the mean values of pull-out forces were 77.15 N and 44.94 N for the tissue-engineered and non-cell-seeded surfaces, respectively. These findings indicate early bone fixation of the tissue-engineered CoCr surface just three weeks after implantation.
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Gibon E, Ma T, Ren PG, Fritton K, Biswal S, Yao Z, Smith L, Goodman SB. Selective inhibition of the MCP-1-CCR2 ligand-receptor axis decreases systemic trafficking of macrophages in the presence of UHMWPE particles. J Orthop Res 2012; 30:547-53. [PMID: 21913218 PMCID: PMC3241865 DOI: 10.1002/jor.21548] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Accepted: 08/22/2011] [Indexed: 02/04/2023]
Abstract
The biological mechanisms leading to periprosthetic osteolysis involve both chemokines and the monocyte/macrophage cell lineage. Whether MCP-1 plays a major role in macrophage recruitment in the presence of wear particles is unknown. We tested two hypotheses: (1) that exogenous local delivery of MCP-1 induces systematic macrophage recruitment and (2) that blockade of the MCP-1 ligand-receptor axis decreases macrophage recruitment and osteolysis in the presence of ultra high molecular weight polyethylene (UHMWPE) particles. Six groups of nude mice were used. We used non-invasive imaging to assay macrophage recruitment and osteolysis. A murine macrophage cell line and primary wild type and CCR2 knockout murine macrophages were used as the reporter cells. Particles were infused into the femoral canal. Bioluminescence and immunohistochemical staining were used to confirm the migration of reporter cells. Locally infused MCP-1 induced systemic macrophage trafficking to bone. Injection of MCP-1 receptor antagonist significantly decreased reporter cell recruitment to bone infused with UHMWPE particles and decreased osteolysis. Systemic migration of reporter cells to infused particles was decreased when the reporter cells were deficient in the CCR2 receptor. Interruption of the MCP-1 ligand-receptor axis appears to be a viable strategy to mitigate trafficking of macrophages and osteolysis due to UHMWPE particles.
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Affiliation(s)
- Emmanuel Gibon
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford California,Department of Orthopaedic Surgery, Bichat Teaching Hospital, Paris School of Medicine, Paris VII University, Paris, France
| | - Ting Ma
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford California
| | - Pei-Gen Ren
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford California
| | - Kate Fritton
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford California
| | - Sandip Biswal
- Department of Radiology, Stanford University School of Medicine, Stanford California
| | - Zhenyu Yao
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford California
| | - Lane Smith
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford California
| | - Stuart B. Goodman
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford California
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Ren PG, Irani A, Huang Z, Ma T, Biswal S, Goodman SB. Continuous infusion of UHMWPE particles induces increased bone macrophages and osteolysis. Clin Orthop Relat Res 2011; 469:113-22. [PMID: 21042895 PMCID: PMC3008905 DOI: 10.1007/s11999-010-1645-5] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Aseptic loosening and periprosthetic osteolysis resulting from wear debris are major complications of total joint arthroplasty. Monocyte/macrophages are the key cells related to osteolysis at the bone-implant interface of joint arthroplasties. Whether the monocyte/macrophages found at the implant interface in the presence of polyethylene particles are locally or systemically derived is unknown. QUESTIONS/PURPOSES We therefore asked (1) whether macrophages associated with polyethylene particle-induced chronic inflammation are recruited locally or systemically and (2) whether the recruited macrophages are associated with enhanced osteolysis locally. METHODS Noninvasive in vivo imaging techniques (bioluminescence and microCT) were used to investigate initial macrophage migration systemically from a remote injection site to polyethylene wear particles continuously infused into the femoral canal. We used histologic and immunohistologic staining to confirm localization of migrated macrophages to the polyethylene particle-treated femoral canals and monitor cellular markers of bone remodeling. RESULTS The values for bioluminescence were increased for animals receiving UHMWPE particles compared with the group in which the carrier saline was infused. At Day 8, the ratio of bioluminescence (operated femur divided by nonoperated contralateral femur of each animal) for the UHMWPE group was 13.95 ± 5.65, whereas the ratio for the saline group was 2.60 ± 1.14. Immunohistologic analysis demonstrated the presence of reporter macrophages in the UHMWPE particle-implanted femora only. MicroCT scans showed the bone mineral density for the group with both UHMWPE particles and macrophage was lower than the control groups. CONCLUSIONS Infusion of clinically relevant polyethylene particles, similar to the human scenario, stimulated systemic migration of remotely injected macrophages and local net bone resorption.
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Affiliation(s)
- Pei-Gen Ren
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA USA
| | - Afraaz Irani
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA USA
| | - Zhinong Huang
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA USA
| | - Ting Ma
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA USA
| | - Sandip Biswal
- Department of Radiology, Stanford University, Stanford, CA USA
| | - Stuart B. Goodman
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA USA ,Department of Orthopaedic Surgery, Stanford University Medical Center Outpatient Center, 450 Broadway Street, M/C 6342, Redwood City, CA 94063 USA
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Jones KS. Assays on the influence of biomaterials on allogeneic rejection in tissue engineering. TISSUE ENGINEERING PART B-REVIEWS 2009; 14:407-17. [PMID: 18826337 DOI: 10.1089/ten.teb.2008.0264] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
In tissue engineering, innate responses to biomaterial scaffolds will affect rejection of allogeneic cells. Biomaterials directly influence innate and adaptive immune cell adhesion, reactive oxygen intermediate production, cytokine secretion, nuclear factor-kappa B nuclear translocation, gene expression, and cell surface markers, all of which are likely to affect allogeneic rejection responses. A major goal in tissue engineering is to induce transplant tolerance, potentially by manipulating the biomaterial component. This review describes methods of measuring responses of macrophages, dendritic cells, and T cells stimulated in vitro and in vivo and addresses key factors in assay development. Such tests include mixed leukocyte reactions, enzyme-linked immunosorbent spot assays, trans-vivo delayed-type hypersensitivity assays, and measurement of dendritic cell subsets and anti-donor antibodies; we propose extending these studies to tissue engineering.
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Affiliation(s)
- Kim S Jones
- Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada.
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12
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Could insertion of the particles that induce osteolysis be a new treatment option in heterotopic ossification? Med Hypotheses 2009; 73:27-8. [PMID: 19342182 DOI: 10.1016/j.mehy.2009.02.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2009] [Revised: 02/18/2009] [Accepted: 02/18/2009] [Indexed: 11/23/2022]
Abstract
Heterotopic ossification (HO) is the formation of the bone outside the skeletal system, it is a common complication of surgery or trauma. The abnormal deposition or precipitation of calcium phosphate in tissues may be massive and clinically significant sometimes. Severe ossification often reduce joint function and induce pain. Unfortunately, to date, there is no satisfactory treatment available yet. Nowadays, periprosthetic osteolysis induced by wear debris is the most widely accepted cause of aseptic loosening after total joint replacement. A large number of researches have identified metal particles can stimulate bone resorption by targeting osteoclasts. So it is hypothesized that the insertion of metal particles in the region surrounding heterotopic bone could be a new treatment option in HO.
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