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Tao H, Li X, Chu M, Wang Q, Li P, Han Q, Chen K, Zhu P, Hao Y, Yang X, Geng D, Gu Y. CB2 regulates oxidative stress and osteoclastogenesis through NOX1-dependent signaling pathway in titanium particle-induced osteolysis. Cell Death Discov 2023; 9:461. [PMID: 38104087 PMCID: PMC10725463 DOI: 10.1038/s41420-023-01761-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 11/29/2023] [Accepted: 12/06/2023] [Indexed: 12/19/2023] Open
Abstract
Periprosthetic osteolysis (PPO) induced by wear particles at the interface between the prosthesis and bone is a crucial issue of periprosthetic bone loss and implant failure. After wear and tear, granular material accumulates around the joint prosthesis, causing a chronic inflammatory response, progressive osteoclast activation and eventual loosening of the prosthesis. Although many studies have been conducted to address bone loss after joint replacement surgeries, they have not fully addressed these issues. Focusing on osteoclast activation induced by particles has important theoretical implications. Cannabinoid type II receptor (CB2) is a seven-transmembrane receptor that is predominantly distributed in the human immune system and has been revealed to be highly expressed in bone-associated cells. Previous studies have shown that modulation of CB2 has a positive effect on bone metabolism. However, the exact mechanism has not yet been elucidated. In our experiments, we found that NOX1-mediated ROS accumulation was involved in titanium particle-stimulated osteoclast differentiation. Furthermore, we confirmed that CB2 blockade alleviated titanium particle-stimulated osteoclast activation by inhibiting the NOX1-mediated oxidative stress pathway. In animal experiments, downregulation of CB2 alleviated the occurrence of titanium particle-induced cranial osteolysis by inhibiting osteoclasts and scavenging intracellular ROS. Collectively, our results suggest that CB2 blockade may be an attractive and promising therapeutic scheme for particle-stimulated osteoclast differentiation and preventing PPO.
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Affiliation(s)
- Huaqiang Tao
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
| | - Xueyan Li
- Anesthesiology department, Suzhou Municipal Hospital, Nanjing Medical University Affiliated Suzhou Hospital, 242, Guangji Road, Suzhou, Jiangsu, China
| | - Miao Chu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
| | - Qiufei Wang
- Department of Orthopedics, Changshu Hospital Affiliated to Soochow University, First People's Hospital of Changshu City, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Ping Li
- Department of Central Laboratory, Nanjing Medical University Affiliated Suzhou Hospital, Gusu School, Suzhou, Jiangsu, China
| | - Qibin Han
- Orthopedics and Sports Medicine Center, Suzhou Municipal Hospital, Nanjing Medical University Affiliated Suzhou Hospital, 242, Guangji Road, Suzhou, Jiangsu, China
| | - Kai Chen
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
| | - Pengfei Zhu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
| | - Yuefeng Hao
- Orthopedics and Sports Medicine Center, Suzhou Municipal Hospital, Nanjing Medical University Affiliated Suzhou Hospital, 242, Guangji Road, Suzhou, Jiangsu, China
| | - Xing Yang
- Orthopedics and Sports Medicine Center, Suzhou Municipal Hospital, Nanjing Medical University Affiliated Suzhou Hospital, 242, Guangji Road, Suzhou, Jiangsu, China.
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China.
| | - Ye Gu
- Department of Orthopedics, Changshu Hospital Affiliated to Soochow University, First People's Hospital of Changshu City, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.
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Østergaard M, Naver EB, Schüpbach D, Kaestner A, Strobl M, Brüel A, Thomsen JS, Schmidt S, Poulsen HF, Kuhn LT, Birkedal H. Correlative study of liquid in human bone by 3D neutron microscopy and lab-based X-ray μCT. Bone 2023; 175:116837. [PMID: 37419297 DOI: 10.1016/j.bone.2023.116837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 06/30/2023] [Accepted: 07/04/2023] [Indexed: 07/09/2023]
Abstract
Liquid plays an important role in bone that has a complex 3D hierarchical pore structure. However, liquid (water) is difficult to discern from e.g. an organic matrix by X-ray imaging. Therefore, we use a correlative approach using both high resolution X-ray and neutron imaging. Human femoral bone with liquid adsorbed into some of the pores was imaged with both the Neutron Microscope at the ICON beamline, SINQ at PSI, and by lab-based μCT using 2.7 μm voxel size. Segmentation of the two datasets showed that, even though the liquid was clearly distinguishable in the neutron data and not in the X-ray data, it remained challenging to segment it from bone due to overlaps of peaks in the gray level histograms. In consequence, segmentations from X-ray and neutron data varied significantly. To address this issue, the segmented X-ray porosities was overlaid on the neutron data, making it possible to localize the liquid in the vascular porosities of the bone sample and use the neutron attenuation to identify it as H2O. The contrast in the neutron images was lowered slightly between the bone and the liquid compared to the bone and the air. This correlative study shows that the complementary use of X-rays and neutrons is very favorable, since H2O is very distinct in the neutron data, while D2O, H2O, and organic matter can barely be distinguished from air in the X-ray data.
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Affiliation(s)
- Maja Østergaard
- Department of Chemistry and iNANO, Aarhus University, Aarhus, Denmark.
| | - Estrid Buhl Naver
- Department of Energy Conversion and Storage, Technical University of Denmark, Kongens Lyngby, Denmark.
| | - Delia Schüpbach
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, Villigen, Switzerland.
| | - Anders Kaestner
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, Villigen, Switzerland.
| | - Markus Strobl
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, Villigen, Switzerland; Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark.
| | - Annemarie Brüel
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.
| | | | - Søren Schmidt
- Data Management and Software Centre, European Spallation Source, Lund, Sweden.
| | | | - Luise Theil Kuhn
- Department of Energy Conversion and Storage, Technical University of Denmark, Kongens Lyngby, Denmark.
| | - Henrik Birkedal
- Department of Chemistry and iNANO, Aarhus University, Aarhus, Denmark.
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Østergaard M, Naver EB, Kaestner A, Willendrup PK, Brüel A, Sørensen HO, Thomsen JS, Schmidt S, Poulsen HF, Theil Kuhn L, Birkedal H. Polychromatic neutron phase-contrast imaging of weakly absorbing samples enabled by phase retrieval. J Appl Crystallogr 2023; 56:673-682. [PMID: 37284268 PMCID: PMC10241042 DOI: 10.1107/s1600576723003011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 04/01/2023] [Indexed: 06/08/2023] Open
Abstract
The use of a phase-retrieval technique for propagation-based phase-contrast neutron imaging with a polychromatic beam is demonstrated. This enables imaging of samples with low absorption contrast and/or improving the signal-to-noise ratio to facilitate e.g. time-resolved measurements. A metal sample, designed to be close to a phase pure object, and a bone sample with canals partially filled with D2O were used for demonstrating the technique. These samples were imaged with a polychromatic neutron beam followed by phase retrieval. For both samples the signal-to-noise ratios were significantly improved and, in the case of the bone sample, the phase retrieval allowed for separation of bone and D2O, which is important for example for in situ flow experiments. The use of deuteration contrast avoids the use of chemical contrast enhancement and makes neutron imaging an interesting complementary method to X-ray imaging of bone.
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Affiliation(s)
- Maja Østergaard
- Department of Chemistry and iNANO, Aarhus University, Gustav Wieds Vej 14, Aarhus, Denmark
| | - Estrid Buhl Naver
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej 310, Kongens Lyngby, Denmark
| | - Anders Kaestner
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, Villigen, Switzerland
| | - Peter K. Willendrup
- Department of Physics, Technical University of Denmark, Fysikvej 307, Kongens Lyngby, Denmark
- European Spallation Source ERIC, PO Box 176, Lund, Sweden
| | - Annemarie Brüel
- Department of Biomedicine, Aarhus University, Wilhelm Meyers Allé 3, Aarhus, Denmark
| | - Henning Osholm Sørensen
- Department of Physics, Technical University of Denmark, Fysikvej 307, Kongens Lyngby, Denmark
- Xnovo Technology ApS, Galoche Alle 15, 1, Køge, Denmark
| | | | - Søren Schmidt
- European Spallation Source ERIC, PO Box 176, Lund, Sweden
| | - Henning Friis Poulsen
- Department of Physics, Technical University of Denmark, Fysikvej 307, Kongens Lyngby, Denmark
| | - Luise Theil Kuhn
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej 310, Kongens Lyngby, Denmark
| | - Henrik Birkedal
- Department of Chemistry and iNANO, Aarhus University, Gustav Wieds Vej 14, Aarhus, Denmark
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Hériveaux Y, Le Cann S, Immel K, Vennat E, Nguyen VH, Brailovski V, Karasinski P, Sauer RA, Haïat G. Debonding of coin-shaped osseointegrated implants: Coupling of experimental and numerical approaches. J Mech Behav Biomed Mater 2023; 141:105787. [PMID: 36989873 DOI: 10.1016/j.jmbbm.2023.105787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 03/06/2023] [Accepted: 03/16/2023] [Indexed: 03/19/2023]
Abstract
While cementless implants are now widely used clinically, implant debonding still occur and is difficult to anticipate. Assessing the biomechanical strength of the bone-implant interface can help improving the understanding of osseointegration phenomena and thus preventing surgical failures. A dedicated and standardized implant model was considered. The samples were tested using a mode III cleavage device to assess the mechanical strength of the bone-implant interface by combining experimental and numerical approaches. Four rough (Sa = 24.5 μm) osseointegrated coin-shaped implants were left in sheep cortical bone during 15 weeks of healing time. Each sample was experimentally rotated at 0.03°/sec until complete rupture of the interface. The maximum values of the torque were comprised between 0.48 and 0.72 N m, while a significant increase of the normal force from 7-12 N to 31-43 N was observed during the bone-implant interface debonding, suggesting the generation of bone debris at the bone-implant interface. The experimental results were compared to an isogeometric finite element model describing the adhesion and debonding phenomena through a modified Coulomb's law, based on a varying friction coefficient to represent the transition from an unbroken to a broken bone-implant interface. A good agreement was found between numerical and experimental torques, with numerical friction coefficients decreasing from 8.93 to 1.23 during the bone-implant interface rupture, which constitutes a validation of this model to simulate the debonding of an osseointegrated bone-implant interface subjected to torsion.
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Törnquist E, Le Cann S, Tengattini A, Helfen L, Kok J, Hall SA, Isaksson H. The Hydration State of Bone Tissue Affects Contrast in Neutron Tomographic Images. Front Bioeng Biotechnol 2022; 10:911866. [PMID: 35782510 PMCID: PMC9247154 DOI: 10.3389/fbioe.2022.911866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 05/24/2022] [Indexed: 12/25/2022] Open
Abstract
Neutron tomography has emerged as a promising imaging technique for specific applications in bone research. Neutrons have a strong interaction with hydrogen, which is abundant in biological tissues, and they can penetrate through dense materials such as metallic implants. However, in addition to long imaging times, two factors have led to challenges in running in situ mechanical characterization experiments on bone tissue using neutron tomography: 1) the high water content in specimens reduces the visibility of internal trabecular structures; 2) the mechanical properties of bone are dependent on the hydration state of the tissue, with drying being reported to cause increased stiffness and brittleness. This study investigates the possibility of improving image quality in terms of neutron transmission and contrast between material phases by drying and rehydrating in heavy water. Rat tibiae and trabecular bovine bone plugs were imaged with neutron tomography at different hydration states and mechanical testing of the bone plugs was carried out to assess effects of drying and rehydration on the mechanical properties of bone. From analysis of image histograms, it was found that drying reduced the contrast between bone and soft tissue, but the contrast was restored with rehydration. Contrast-to-noise ratios and line profiles revealed that the contrast between bone tissue and background was reduced with increasing rehydration duration but remained sufficient for identifying internal structures as long as no free liquid was present inside the specimen. The mechanical analysis indicated that the proposed fluid exchange protocol had no adverse effects on the mechanical properties.
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Affiliation(s)
- Elin Törnquist
- Department of Biomedical Engineering, Lund University, Lund, Sweden
| | - Sophie Le Cann
- CNRS, Université Paris Est Créteil, Université Gustave Eiffel, UMR 8208, MSME, F-94010, Créteil, France
| | - Alessandro Tengattini
- Institut Laue-Langevin, Grenoble, France
- Université Grenoble Alpes, CNRS, Grenoble INP 3SR, Grenoble, France
| | | | - Joeri Kok
- Department of Biomedical Engineering, Lund University, Lund, Sweden
| | | | - Hanna Isaksson
- Department of Biomedical Engineering, Lund University, Lund, Sweden
- *Correspondence: Hanna Isaksson,
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Törnquist E, Le Cann S, Tudisco E, Tengattini A, Andò E, Lenoir N, Hektor J, Raina DB, Tägil M, Hall SA, Isaksson H. Dual modality neutron and x-ray tomography for enhanced image analysis of the bone-metal interface. Phys Med Biol 2021; 66. [PMID: 34010812 DOI: 10.1088/1361-6560/ac02d4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 05/19/2021] [Indexed: 11/11/2022]
Abstract
The bone tissue formed at the contact interface with metallic implants, particularly its 3D microstructure, plays a pivotal role for the structural integrity of implant fixation. X-ray tomography is the classical imaging technique used for accessing microstructural information from bone tissue. However, neutron tomography has shown promise for visualising the immediate bone-metal implant interface, something which is highly challenging with x-rays due to large differences in attenuation between metal and biological tissue causing image artefacts. To highlight and explore the complementary nature of neutron and x-ray tomography, proximal rat tibiae with titanium-based implants were imaged with both modalities. The two techniques were compared in terms of visualisation of different material phases and by comparing the properties of the individual images, such as the contrast-to-noise ratio. After superimposing the images using a dedicated image registration algorithm, the complementarity was further investigated via analysis of the dual modality histogram, joining the neutron and x-ray data. From these joint histograms, peaks with well-defined grey value intervals corresponding to the different material phases observed in the specimens were identified and compared. The results highlight differences in how neutrons and x-rays interact with biological tissues and metallic implants, as well as the benefits of combining both modalities. Future refinement of the joint histogram analysis could improve the segmentation of structures and tissues, and yield novel information about specimen-specific properties such as moisture content.
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Affiliation(s)
- Elin Törnquist
- Department of Biomedical Engineering, Lund University, Lund, Sweden
| | - Sophie Le Cann
- Department of Biomedical Engineering, Lund University, Lund, Sweden.,MSME, CNRS UMR 8208, Univ Paris Est Creteil, Univ Gustave Eiffel, Creteil, France
| | - Erika Tudisco
- Division of Geotechnical Engineering, Lund University, Lund, Sweden
| | - Alessandro Tengattini
- Institut Laue-Langevin (ILL), Grenoble, France.,Univ. Grenoble Alpes, CNRS, Grenoble INP, 3SR, Grenoble, France
| | - Edward Andò
- Univ. Grenoble Alpes, CNRS, Grenoble INP, 3SR, Grenoble, France
| | - Nicolas Lenoir
- Institut Laue-Langevin (ILL), Grenoble, France.,Univ. Grenoble Alpes, CNRS, Grenoble INP, 3SR, Grenoble, France
| | - Johan Hektor
- LUNARC-Centre for Scientific and Technical Computing at Lund University, Lund University, Lund, Sweden
| | - Deepak Bushan Raina
- Orthopaedics, Department of Clinical Sciences, Lund, Lund University, Lund, Sweden
| | - Magnus Tägil
- Orthopaedics, Department of Clinical Sciences, Lund, Lund University, Lund, Sweden
| | - Stephen A Hall
- Division of Solid Mechanics, Lund University, Lund, Sweden.,Lund Institute of Advanced Neutron and X-ray Science (LINXS), Lund, Sweden
| | - Hanna Isaksson
- Department of Biomedical Engineering, Lund University, Lund, Sweden.,Orthopaedics, Department of Clinical Sciences, Lund, Lund University, Lund, Sweden
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