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Hasegawa Y, Franks JM, Tanaka Y, Uehara Y, Read DF, Williams C, Srivatsan S, Pitstick LB, Nikolaidis NM, Shaver CM, Kropski J, Ware LB, Taylor CJ, Banovich NE, Wu H, Gardner JC, Osterburg AR, Yu JJ, Kopras EJ, Teitelbaum SL, Wikenheiser-Brokamp KA, Trapnell C, McCormack FX. Pulmonary osteoclast-like cells in silica induced pulmonary fibrosis. SCIENCE ADVANCES 2024; 10:eadl4913. [PMID: 38985878 PMCID: PMC11235167 DOI: 10.1126/sciadv.adl4913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 06/05/2024] [Indexed: 07/12/2024]
Abstract
The pathophysiology of silicosis is poorly understood, limiting development of therapies for those who have been exposed to the respirable particle. We explored mechanisms of silica-induced pulmonary fibrosis in human lung samples collected from patients with occupational exposure to silica and in a longitudinal mouse model of silicosis using multiple modalities including whole-lung single-cell RNA sequencing and histological, biochemical, and physiologic assessments. In addition to pulmonary inflammation and fibrosis, intratracheal silica challenge induced osteoclast-like differentiation of alveolar macrophages and recruited monocytes, driven by induction of the osteoclastogenic cytokine, receptor activator of nuclear factor κΒ ligand (RANKL) in pulmonary lymphocytes, and alveolar type II cells. Anti-RANKL monoclonal antibody treatment suppressed silica-induced osteoclast-like differentiation in the lung and attenuated pulmonary fibrosis. We conclude that silica induces differentiation of pulmonary osteoclast-like cells leading to progressive lung injury, likely due to sustained elaboration of bone-resorbing proteases and hydrochloric acid. Interrupting osteoclast-like differentiation may therefore constitute a promising avenue for moderating lung damage in silicosis.
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Affiliation(s)
- Yoshihiro Hasegawa
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Jennifer M. Franks
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Yusuke Tanaka
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Yasuaki Uehara
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - David F. Read
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Claire Williams
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Sanjay Srivatsan
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Lori B. Pitstick
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Nikolaos M. Nikolaidis
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Ciara M. Shaver
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jonathan Kropski
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Lorraine B. Ware
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Chase J. Taylor
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Nicholas E. Banovich
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Huixing Wu
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Jason C. Gardner
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Andrew R. Osterburg
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Jane J. Yu
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Elizabeth J. Kopras
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Steven L. Teitelbaum
- Department of Pathology and Immunology, and Division of Bone and Mineral Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Kathryn A. Wikenheiser-Brokamp
- Division of Pathology and Laboratory Medicine and Perinatal Institute, Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Department of Pathology and Laboratory Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Cole Trapnell
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Francis X. McCormack
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, USA
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Kachler K, Andreev D, Thapa S, Royzman D, Gießl A, Karuppusamy S, Llerins Perez M, Liu M, Hofmann J, Gessner A, Meng X, Rauber S, Steinkasserer A, Fromm M, Schett G, Bozec A. Acod1-mediated inhibition of aerobic glycolysis suppresses osteoclast differentiation and attenuates bone erosion in arthritis. Ann Rheum Dis 2024:ard-2023-224774. [PMID: 38964754 DOI: 10.1136/ard-2023-224774] [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: 07/25/2023] [Accepted: 06/20/2024] [Indexed: 07/06/2024]
Abstract
OBJECTIVES Metabolic changes are crucially involved in osteoclast development and may contribute to bone degradation in rheumatoid arthritis (RA). The enzyme aconitate decarboxylase 1 (Acod1) is known to link the cellular function of monocyte-derived macrophages to their metabolic status. As osteoclasts derive from the monocyte lineage, we hypothesised a role for Acod1 and its metabolite itaconate in osteoclast differentiation and arthritis-associated bone loss. METHODS Itaconate levels were measured in human peripheral blood mononuclear cells (PBMCs) of patients with RA and healthy controls by mass spectrometry. Human and murine osteoclasts were treated with the itaconate derivative 4-octyl-itaconate (4-OI) in vitro. We examined the impact of Acod1-deficiency and 4-OI treatment on bone erosion in mice using K/BxN serum-induced arthritis and human TNF transgenic (hTNFtg) mice. SCENITH and extracellular flux analyses were used to evaluate the metabolic activity of osteoclasts and osteoclast progenitors. Acod1-dependent and itaconate-dependent changes in the osteoclast transcriptome were identified by RNA sequencing. CRISPR/Cas9 gene editing was used to investigate the role of hypoxia-inducible factor (Hif)-1α in Acod1-mediated regulation of osteoclast development. RESULTS Itaconate levels in PBMCs from patients with RA were inversely correlated with disease activity. Acod1-deficient mice exhibited increased osteoclast numbers and bone erosion in experimental arthritis while 4-OI treatment alleviated inflammatory bone loss in vivo and inhibited human and murine osteoclast differentiation in vitro. Mechanistically, Acod1 suppressed osteoclast differentiation by inhibiting succinate dehydrogenase-dependent production of reactive oxygen species and Hif1α-mediated induction of aerobic glycolysis. CONCLUSION Acod1 and itaconate are crucial regulators of osteoclast differentiation and bone loss in inflammatory arthritis.
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Affiliation(s)
- Katerina Kachler
- Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Darja Andreev
- Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität (TU) Dresden, Dresden, Germany
| | - Shreeya Thapa
- Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Dmytro Royzman
- Department of Immune Modulation, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Andreas Gießl
- Department of Ophthalmology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Shobika Karuppusamy
- Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Mireia Llerins Perez
- Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Mengdan Liu
- Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Department of Rheumatology, Zhejiang University - School of Medicine, Hangzhou, People's Republic of China
| | - Jörg Hofmann
- Division of Biochemistry, Department of Biology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Arne Gessner
- Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Xianyi Meng
- Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Simon Rauber
- Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Alexander Steinkasserer
- Department of Immune Modulation, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Martin Fromm
- Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Georg Schett
- Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Aline Bozec
- Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
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3
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Shin B, Hrdlicka HC, Karki S, Fraser B, Lee SK, Delany AM. The miR-29-3p family suppresses inflammatory osteolysis. J Cell Physiol 2024. [PMID: 38764231 DOI: 10.1002/jcp.31299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 04/08/2024] [Accepted: 05/03/2024] [Indexed: 05/21/2024]
Abstract
Osteoclasts are the cells primarily responsible for inflammation-induced bone loss, as is particularly seen in rheumatoid arthritis. Increasing evidence suggests that osteoclasts formed under homeostatic versus inflammatory conditions may differ in phenotype. While microRNA-29-3p family members (miR-29a-3p, miR-29b-3p, miR-29c-3p) promote the function of RANKL-induced osteoclasts, the role of miR-29-3p during inflammatory TNF-α-induced osteoclastogenesis is unknown. We used bulk RNA-seq, histology, qRT-PCR, reporter assays, and western blot analysis to examine bone marrow monocytic cell cultures and tissue from male mice in which the function of miR-29-3p family members was decreased by expression of a miR-29-3p tough decoy (TuD) competitive inhibitor in the myeloid lineage (LysM-cre). We found that RANKL-treated monocytic cells expressing the miR-29-3p TuD developed a hypercytokinemia/proinflammatory gene expression profile in vitro, which is associated with macrophages. These data support the concept that miR-29-3p suppresses macrophage lineage commitment and may have anti-inflammatory effects. In correlation, when miR-29-3p activity was decreased, TNF-α-induced osteoclast formation was accentuated in an in vivo model of localized osteolysis and in a cell-autonomous manner in vitro. Further, miR-29-3p targets mouse TNF receptor 1 (TNFR1/Tnfrsf1a), an evolutionarily conserved regulatory mechanism, which likely contributes to the increased TNF-α signaling sensitivity observed in the miR-29-3p decoy cells. Whereas our previous studies demonstrated that the miR-29-3p family promotes RANKL-induced bone resorption, the present work shows that miR-29-3p dampens TNF-α-induced osteoclastogenesis, indicating that miR-29-3p has pleiotropic effects in bone homeostasis and inflammatory osteolysis. Our data supports the concept that the knockdown of miR-29-3p activity could prime myeloid cells to respond to an inflammatory challenge and potentially shift lineage commitment toward macrophage, making the miR-29-3p family a potential therapeutic target for modulating inflammatory response.
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Affiliation(s)
- Bongjin Shin
- Center on Aging, UConn Health, Farmington, Connecticut, USA
| | - Henry C Hrdlicka
- Center for Molecular Oncology, UConn Health, Farmington, Connecticut, USA
| | - Sangita Karki
- Center for Molecular Oncology, UConn Health, Farmington, Connecticut, USA
| | - Brianna Fraser
- Center for Molecular Oncology, UConn Health, Farmington, Connecticut, USA
| | - Sun-Kyeong Lee
- Center on Aging, UConn Health, Farmington, Connecticut, USA
| | - Anne M Delany
- Center for Molecular Oncology, UConn Health, Farmington, Connecticut, USA
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4
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Henning P, Kassem A, Westerlund A, Lundberg P, Engdahl C, Lionikaite V, Wikström P, Wu J, Li L, Lindholm C, de Souza PPC, Movérare-Skrtic S, Lerner UH. Toll-like receptor-2 induced inflammation causes local bone formation and activates canonical Wnt signaling. Front Immunol 2024; 15:1383113. [PMID: 38646530 PMCID: PMC11026618 DOI: 10.3389/fimmu.2024.1383113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 03/11/2024] [Indexed: 04/23/2024] Open
Abstract
It is well established that inflammatory processes in the vicinity of bone often induce osteoclast formation and bone resorption. Effects of inflammatory processes on bone formation are less studied. Therefore, we investigated the effect of locally induced inflammation on bone formation. Toll-like receptor (TLR) 2 agonists LPS from Porphyromonas gingivalis and PAM2 were injected once subcutaneously above mouse calvarial bones. After five days, both agonists induced bone formation mainly at endocranial surfaces. The injection resulted in progressively increased calvarial thickness during 21 days. Excessive new bone formation was mainly observed separated from bone resorption cavities. Anti-RANKL did not affect the increase of bone formation. Inflammation caused increased bone formation rate due to increased mineralizing surfaces as assessed by dynamic histomorphometry. In areas close to new bone formation, an abundance of proliferating cells was observed as well as cells robustly stained for Runx2 and alkaline phosphatase. PAM2 increased the mRNA expression of Lrp5, Lrp6 and Wnt7b, and decreased the expression of Sost and Dkk1. In situ hybridization demonstrated decreased Sost mRNA expression in osteocytes present in old bone. An abundance of cells expressed Wnt7b in Runx2-positive osteoblasts and ß-catenin in areas with new bone formation. These data demonstrate that inflammation, not only induces osteoclastogenesis, but also locally activates canonical WNT signaling and stimulates new bone formation independent on bone resorption.
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Affiliation(s)
- Petra Henning
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute for Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Ali Kassem
- Department of Molecular Periodontology, Umeå University, Umeå, Sweden
| | - Anna Westerlund
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute for Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Pernilla Lundberg
- Department of Molecular Periodontology, Umeå University, Umeå, Sweden
| | - Cecilia Engdahl
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute for Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Rheumatology and Inflammation Research, Institute for Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Vikte Lionikaite
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute for Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Pernilla Wikström
- Department of Medical Biosciences, Section of Pathology, Umeå University, Umeå, Sweden
| | - Jianyao Wu
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute for Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Lei Li
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute for Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Catharina Lindholm
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute for Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Rheumatology and Inflammation Research, Institute for Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Pedro P. C. de Souza
- Innovation in Biomaterials Laboratory, Federal University of Goiás, Goiania, Brazil
| | - Sofia Movérare-Skrtic
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute for Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Ulf H. Lerner
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute for Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Molecular Periodontology, Umeå University, Umeå, Sweden
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5
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Liu N, Dong J, Li L, Zhou D, Liu F. The Function and Mechanism of Anti-Inflammatory Factor Metrnl Prevents the Progression of Inflammatory-Mediated Pathological Bone Osteolytic Diseases. J Inflamm Res 2024; 17:1607-1619. [PMID: 38495340 PMCID: PMC10942011 DOI: 10.2147/jir.s455790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/07/2024] [Indexed: 03/19/2024] Open
Abstract
Metrnl, recently identified as an adipokine, is a secreted protein notably expressed in white adipose tissue, barrier tissues, and activated macrophages. This adipokine plays a pivotal role in counteracting obesity-induced insulin resistance. It enhances adipose tissue functionality by promoting adipocyte differentiation, activating metabolic pathways, and exerting anti-inflammatory effects. Extensive research has identified Metrnl as a key player in modulating inflammatory responses and as an integral regulator of muscle regeneration. These findings position Metrnl as a promising biomarker and potential therapeutic target in treating inflammation-associated pathologies. Despite this, the specific anti-inflammatory mechanisms of Metrnl in immune-mediated osteolysis and arthritis remain elusive, warranting further investigation. In this review, we will briefly elaborate on the role of Metrnl in anti-inflammation function in inflammation-related osteolysis, arthritis, and pathological bone resorption, which could facilitate Metrnl's clinical application as a novel therapeutic strategy to prevent bone loss. While the pathogenesis of elbow stiffness remains elusive, current literature suggests that Metrnl likely exerts a pivotal role in its development.
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Affiliation(s)
- Nan Liu
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
| | - Jinlei Dong
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
| | - Lianxin Li
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
| | - Dongsheng Zhou
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
| | - Fanxiao Liu
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
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6
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Li B, Thebault P, Labat B, Ladam G, Alt V, Rupp M, Brochausen C, Jantsch J, Ip M, Zhang N, Cheung WH, Leung SYS, Wong RMY. Implants coating strategies for antibacterial treatment in fracture and defect models: A systematic review of animal studies. J Orthop Translat 2024; 45:24-35. [PMID: 38495742 PMCID: PMC10943307 DOI: 10.1016/j.jot.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 12/20/2023] [Accepted: 12/28/2023] [Indexed: 03/19/2024] Open
Abstract
Objective Fracture-related infection (FRI) remains a major concern in orthopaedic trauma. Functionalizing implants with antibacterial coatings are a promising strategy in mitigating FRI. Numerous implant coatings have been reported but the preventive and therapeutic effects vary. This systematic review aimed to provide a comprehensive overview of current implant coating strategies to prevent and treat FRI in animal fracture and bone defect models. Methods A literature search was performed in three databases: PubMed, Web of Science and Embase, with predetermined keywords and criteria up to 28 February 2023. Preclinical studies on implant coatings in animal fracture or defect models that assessed antibacterial and bone healing effects were included. Results A total of 14 studies were included in this systematic review, seven of which used fracture models and seven used defect models. Passive coatings with bacteria adhesion resistance were investigated in two studies. Active coatings with bactericidal effects were investigated in 12 studies, four of which used metal ions including Ag+ and Cu2+; five studies used antibiotics including chlorhexidine, tigecycline, vancomycin, and gentamicin sulfate; and the other three studies used natural antibacterial materials including chitosan, antimicrobial peptides, and lysostaphin. Overall, these implant coatings exhibited promising efficacy in antibacterial effects and bone formation. Conclusion Antibacterial coating strategies reduced bacterial infections in animal models and favored bone healing in vivo. Future studies of implant coatings should focus on optimal biocompatibility, antibacterial effects against multi-drug resistant bacteria and polymicrobial infections, and osseointegration and osteogenesis promotion especially in osteoporotic bone by constructing multi-functional coatings for FRI therapy. The translational potential of this paper The clinical treatment of FRI is complex and challenging. This review summarizes novel orthopaedic implant coating strategies applied to FRI in preclinical studies, and offers a perspective on the future development of orthopaedic implant coatings, which can potentially contribute to alternative strategies in clinical practice.
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Affiliation(s)
- Baoqi Li
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Pascal Thebault
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, PBS UMR 6270, F-76000, Rouen, France
| | - Béatrice Labat
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, PBS UMR 6270, F-76000, Rouen, France
| | - Guy Ladam
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, PBS UMR 6270, F-76000, Rouen, France
| | - Volker Alt
- Department of Trauma Surgery, University Hospital Regensburg, Germany
| | - Markus Rupp
- Department of Trauma Surgery, University Hospital Regensburg, Germany
| | | | - Jonathan Jantsch
- Institute for Medical Microbiology, Immunology, and Hygiene, and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Margaret Ip
- Department of Microbiology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ning Zhang
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Wing-Hoi Cheung
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | | | - Ronald Man Yeung Wong
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
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7
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Xie X, Chen W, Xu M, Chen J, Yang T, Wang C, Su Y, Zhao J, Xu J, Liu Q. IKK/NF-κB and ROS signal axes are involved in Tenacissoside H mediated inhibitory effects on LPS-induced inflammatory osteolysis. Cell Prolif 2024; 57:e13535. [PMID: 37551727 PMCID: PMC10771108 DOI: 10.1111/cpr.13535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 06/07/2023] [Accepted: 07/25/2023] [Indexed: 08/09/2023] Open
Abstract
Periodontal disease and arthroplasty prosthesis loosening and destabilization are both associated with osteolysis, which is predominantly caused by abnormal bone resorption triggered by pro-inflammatory cytokines. Osteoclasts (OCs) are critical players in the process. Concerns regarding the long-term efficacy and side effects of current frontline therapies, however, remain. Alternative therapies are still required. The aim of this work was to investigate the involvement of Tenacissoside H (TDH) in RANKL-mediated OC differentiation, as well as inflammatory osteolysis and associated processes. In vitro, bone marrow-derived macrophages (BMMs) cultured with RANKL and M-CSF were used to detect TDH in the differentiation and function of OCs. Real-time quantitative PCR was used to measure the expression of specific genes and inflammatory factors in OCs. Western blot was used to identify NFATc1, IKK, NF-κB, MAPK pathway, and oxidative stress-related components. Finally, an LPS-mediated calvarial osteolysis mouse model was employed to explore TDH's role in inflammatory osteolysis. The results showed that in vivo TDH inhibited the differentiation and resorption functions of OCs and down-regulated the transcription of osteoclast-specific genes, as well as Il-1β, Il-6 and Tnf-α. In addition, TDH inhibited the IKK and NF-κB signalling pathways and down-regulated the level of ROS. In vivo studies revealed that TDH improves the bone loss caused by LPS. TDH may be a new candidate or treatment for osteoclast-associated inflammatory osteolytic disease.
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Affiliation(s)
- Xiaoxiao Xie
- Guangxi Key Laboratory of Regenerative Medicine, Orthopaedic DepartmentThe First Affiliated Hospital of Guangxi Medical UniversityNanningGuangxiChina
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co‐constructed by the Province and Ministry, Life Sciences Institute, Guangxi Medical UniversityNanningGuangxiChina
| | - Weiwei Chen
- Guangxi Key Laboratory of Regenerative Medicine, Orthopaedic DepartmentThe First Affiliated Hospital of Guangxi Medical UniversityNanningGuangxiChina
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co‐constructed by the Province and Ministry, Life Sciences Institute, Guangxi Medical UniversityNanningGuangxiChina
| | - Minglian Xu
- Guangxi Key Laboratory of Regenerative Medicine, Orthopaedic DepartmentThe First Affiliated Hospital of Guangxi Medical UniversityNanningGuangxiChina
| | - Junchun Chen
- Guangxi Key Laboratory of Regenerative Medicine, Orthopaedic DepartmentThe First Affiliated Hospital of Guangxi Medical UniversityNanningGuangxiChina
| | - Tao Yang
- Guangxi Key Laboratory of Regenerative Medicine, Orthopaedic DepartmentThe First Affiliated Hospital of Guangxi Medical UniversityNanningGuangxiChina
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co‐constructed by the Province and Ministry, Life Sciences Institute, Guangxi Medical UniversityNanningGuangxiChina
| | - Chaofeng Wang
- Guangxi Key Laboratory of Regenerative Medicine, Orthopaedic DepartmentThe First Affiliated Hospital of Guangxi Medical UniversityNanningGuangxiChina
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co‐constructed by the Province and Ministry, Life Sciences Institute, Guangxi Medical UniversityNanningGuangxiChina
| | - Yuangang Su
- Guangxi Key Laboratory of Regenerative Medicine, Orthopaedic DepartmentThe First Affiliated Hospital of Guangxi Medical UniversityNanningGuangxiChina
| | - Jinmin Zhao
- Guangxi Key Laboratory of Regenerative Medicine, Orthopaedic DepartmentThe First Affiliated Hospital of Guangxi Medical UniversityNanningGuangxiChina
| | - Jiake Xu
- School of Biomedical SciencesUniversity of Western AustraliaPerthWestern AustraliaAustralia
- Faculty of Pharmaceutical Sciences, Shenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
| | - Qian Liu
- Guangxi Key Laboratory of Regenerative Medicine, Orthopaedic DepartmentThe First Affiliated Hospital of Guangxi Medical UniversityNanningGuangxiChina
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co‐constructed by the Province and Ministry, Life Sciences Institute, Guangxi Medical UniversityNanningGuangxiChina
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8
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Yang X, Wang Q, Yan C, Huang D, Zhang Y, He H, Xiong S, Li C, Chen P, Ye T, Hu D, Wang L. A dual-functional strontium-decorated titanium implants that guides the immune response for osseointegration of osteoporotic rats. Colloids Surf B Biointerfaces 2024; 233:113643. [PMID: 37995629 DOI: 10.1016/j.colsurfb.2023.113643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 11/25/2023]
Abstract
Due to the dynamic imbalance between osteogenesis and osteoclasis and the abnormal inflammatory microenvironment in situ, osteoporosis hampers the early osseointegration between implants and bones. To improve osseointegration with the osteoporosis, we first coated the titanium implants (Ti) with polydopamine (PDA) coating (Ti-PDA), followed by modification with strontium (Sr) to prepare the Ti-PDA-Sr implants. An osteoporotic rat model with femoral bone defect was verified to estimate the osseointegration of the implants. The Ti-PDA-Sr implants exhibited good biocompatibility with continuous release of Sr ions for up to 21 days. Ti-PDA-Sr implants promoted the osteogenesis of BMSCs and the polarization of BMMs to M2 phenotype compared to that of Ti and Ti-PDA implants, revealing the double-regulated effects in bone induction and immune regulation. According to the Micro-CT and histopathology results, Ti-PDA-Sr implants exhibited the most stable osseointegration between bone tissues and implants. According to the immunohistochemistry results, the Ti-PDA-Sr implants differentiated the BMMs to M2 phenotype, alleviating the abnormal inflammation in osteoporosis and preventing the consistent bone destruction between the implants and bone tissues. This study provides a practical and effective strategy in preparing bi-functional implants that can promote osseointegration with osteoporosis.
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Affiliation(s)
- Xin Yang
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Wuhu 241001, Anhui, China
| | - Qiang Wang
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Wuhu 241001, Anhui, China
| | - Chaoxi Yan
- Department of Orthopedics, Renmin Hospital of Zhijiang, Yichang 443200, Hubei, China
| | - Degang Huang
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Wuhu 241001, Anhui, China
| | - Yinchang Zhang
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Wuhu 241001, Anhui, China
| | - Huazheng He
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Wuhu 241001, Anhui, China
| | - Shouliang Xiong
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Wuhu 241001, Anhui, China
| | - Congming Li
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Wuhu 241001, Anhui, China
| | - Pingbo Chen
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Wuhu 241001, Anhui, China
| | - Tingjun Ye
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China.
| | - Dan Hu
- Department of Orthopedics, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215500, Jiangsu, China.
| | - Lei Wang
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Wuhu 241001, Anhui, China.
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9
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Yan B, Li Z, Su H, Xue H, Qiu D, Xu Z, Tan G. Regulatory mechanisms of autophagy-related ncRNAs in bone metabolic diseases. Front Pharmacol 2023; 14:1178310. [PMID: 38146458 PMCID: PMC10749346 DOI: 10.3389/fphar.2023.1178310] [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: 03/02/2023] [Accepted: 11/27/2023] [Indexed: 12/27/2023] Open
Abstract
Bone metabolic diseases have been tormented and are plaguing people worldwide due to the lack of effective and thorough medical interventions and the poor understanding of their pathogenesis. Non-coding RNAs (ncRNAs) are heterogeneous transcripts that cannot encode the proteins but can affect the expressions of other genes. Autophagy is a fundamental mechanism for keeping cell viability, recycling cellular contents through the lysosomal pathway, and maintaining the homeostasis of the intracellular environment. There is growing evidence that ncRNAs, autophagy, and crosstalk between ncRNAs and autophagy play complex roles in progression of metabolic bone disease. This review investigated the complex mechanisms by which ncRNAs, mainly micro RNAs (miRNAs), long noncoding RNAs (lncRNAs), and circular RNAs (circRNAs), regulate autophagic pathway to assist in treating bone metabolism disorders. It aimed at identifying the autophagy role in bone metabolism disorders and understanding the role, potential, and challenges of crosstalk between ncRNAs and autophagy for bone metabolism disorders treatment.
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Affiliation(s)
- Binghan Yan
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhichao Li
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Hui Su
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Haipeng Xue
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Daodi Qiu
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhanwang Xu
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Guoqing Tan
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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10
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Mahajan A, Bhattacharyya S. Immunomodulation by mesenchymal stem cells during osteogenic differentiation: Clinical implications during bone regeneration. Mol Immunol 2023; 164:143-152. [PMID: 38011783 DOI: 10.1016/j.molimm.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 11/08/2023] [Accepted: 11/12/2023] [Indexed: 11/29/2023]
Abstract
Critical bone defects resulting in delayed and non-union are a major concern in the field of orthopedics. Over the past decade, mesenchymal stem cells (MSCs) have become a promising frontier for bone repair and regeneration owing to their high expansion rate and osteogenic differentiation potential ex vivo. MSCs have also long been associated with their ability to modulate immune response in the recipients. These can even skew the immune response towards pro-inflammatory or anti-inflammatory type by sensing their local microenvironment. MSCs adopt anti-inflammatory phenotype at bone injury site and secrete various immunomodulatory factors such as IDO, NO, TGFβ1 and PGE-2 which have redundant role in osteoblast differentiation and bone formation. As such, several studies have also sought to decipher the immunomodulatory effects of osteogenically differentiated MSCs. The present review discusses the immunomodulatory status of MSCs during their osteogenic differentiation and summarizes few mechanisms that cause immunosuppression by osteogenically differentiated MSCs and its implication during bone healing.
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Affiliation(s)
- Aditi Mahajan
- Department of Biophysics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Shalmoli Bhattacharyya
- Department of Biophysics, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
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11
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Xiong Y, Huang CW, Shi C, Peng L, Cheng YT, Hong W, Liao J. Quercetin suppresses ovariectomy-induced osteoporosis in rat mandibles by regulating autophagy and the NLRP3 pathway. Exp Biol Med (Maywood) 2023; 248:2363-2380. [PMID: 38240215 PMCID: PMC10903250 DOI: 10.1177/15353702231211977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 08/29/2023] [Indexed: 01/23/2024] Open
Abstract
With the aging population and the popularity of implant prostheses, an increasing number of postmenopausal osteoporosis (PMOP) patients require implant restorations; however, poor bone condition affects the long-term stability of implant prostheses. This study aimed to investigate the therapeutic effect of quercetin (QR) compared with alendronate (ALN), the primary treatment for PMOP, on mandibular osteoporosis (OP) induced by ovariectomy (OVX) in female rats. Adult female rats were treated with QR (50 mg/kg/day), ALN (6.25 mg/kg/week) by gavage for 8 weeks, chloroquine (CQ, 10 mg/kg/twice a week), and cytokine release inhibitory drug 3 (MCC950, 10 mg/kg/three times a week) by intraperitoneal injection for 8 weeks after bilateral OVX. Blood samples were collected prior to euthanasia; the mandibles were harvested and subjected to micro-computed tomography (micro-CT) and pathological analysis. QR administration controlled weight gain and significantly improved the bone microstructure in OVX rats, increasing bone mass, and bone mineral density (BMD), reducing bone trabecular spacing, and decreasing osteoclast numbers. Western blotting, real-time quantitative PCR (RT-qPCR), and serum markers confirmed that QR inhibited interleukin- 1β (IL-1β) and interleukin-18 (IL-18) on the nucleotide-binding oligomerization domain (NOD)-like receptor (NLR) protein 3 (NLRP3) pathway thereby inhibiting osteoclast differentiation, immunofluorescence and western blotting also confirmed that QR inhibited autophagy in OVX rats and suppressed the number of tartrate-resistant acid phosphatase (TRAP)-stained positive osteoclasts. The findings suggest that QR may protect the bone structure and prevent bone loss in osteoporotic rats by inhibiting the NLRP3 pathway and autophagy in osteoclasts with comparable effects to ALN, thus QR may have the potential to be a promising alternative supplement for the preventive and therapeutic treatment of PMOP.
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Affiliation(s)
- Yue Xiong
- Department of Prosthodontics and Implantology, School/Hospital of Stomatology, Guizhou Medical University, Guiyang 550004, P.R. China
| | | | - Chao Shi
- Guizhou Medical University, Guiyang 550004, P.R. China
| | - Liang Peng
- Guizhou Medical University, Guiyang 550004, P.R. China
| | - Yu-Ting Cheng
- Department of Prosthodontics and Implantology, School/Hospital of Stomatology, Guizhou Medical University, Guiyang 550004, P.R. China
| | - Wei Hong
- Guizhou Medical University, Guiyang 550004, P.R. China
| | - Jian Liao
- Department of Prosthodontics and Implantology, School/Hospital of Stomatology, Guizhou Medical University, Guiyang 550004, P.R. China
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12
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Torres HM, Arnold KM, Oviedo M, Westendorf JJ, Weaver SR. Inflammatory Processes Affecting Bone Health and Repair. Curr Osteoporos Rep 2023; 21:842-853. [PMID: 37759135 PMCID: PMC10842967 DOI: 10.1007/s11914-023-00824-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/05/2023] [Indexed: 09/29/2023]
Abstract
PURPOSE OF REVIEW The purpose of this article is to review the current understanding of inflammatory processes on bone, including direct impacts of inflammatory factors on bone cells, the effect of senescence on inflamed bone, and the critical role of inflammation in bone pain and healing. RECENT FINDINGS Advances in osteoimmunology have provided new perspectives on inflammatory bone loss in recent years. Characterization of so-called inflammatory osteoclasts has revealed insights into physiological and pathological bone loss. The identification of inflammation-associated senescent markers in bone cells indicates that therapies that reduce senescent cell burden may reverse bone loss caused by inflammatory processes. Finally, novel studies have refined the role of inflammation in bone healing, including cross talk between nerves and bone cells. Except for the initial stages of fracture healing, inflammation has predominately negative effects on bone and increases fracture risk. Eliminating senescent cells, priming the osteo-immune axis in bone cells, and alleviating pro-inflammatory cytokine burden may ameliorate the negative effects of inflammation on bone.
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Affiliation(s)
- Haydee M Torres
- Department of Orthopedic Surgery, Mayo Clinic, 200 1st St SW, Rochester, MN, 55905, USA
| | - Katherine M Arnold
- Department of Orthopedic Surgery, Mayo Clinic, 200 1st St SW, Rochester, MN, 55905, USA
- Biomedical Engineering and Physiology Track/Regenerative Sciences Program, Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, MN, 55905, USA
| | - Manuela Oviedo
- Department of Orthopedic Surgery, Mayo Clinic, 200 1st St SW, Rochester, MN, 55905, USA
| | - Jennifer J Westendorf
- Department of Orthopedic Surgery, Mayo Clinic, 200 1st St SW, Rochester, MN, 55905, USA
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Samantha R Weaver
- Department of Orthopedic Surgery, Mayo Clinic, 200 1st St SW, Rochester, MN, 55905, USA.
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13
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Cao Z, Xue Y, Wang J. Screening diagnostic markers of osteoporosis based on ferroptosis of osteoblast and osteoclast. Aging (Albany NY) 2023; 15:9391-9407. [PMID: 37770229 PMCID: PMC10564410 DOI: 10.18632/aging.204945] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 07/17/2023] [Indexed: 10/03/2023]
Abstract
BACKGROUND Osteoporosis is a negative balance of bone metabolism caused by the lower bone formation of osteoblasts than the bone absorption of osteoclasts. Ferroptosis plays an important role in osteoporosis, but its effects on osteoblasts and osteoclasts are still unclear. METHODS First, we compared the osteogenic differentiation potential of MSCs and osteoclast differentiation potential of monocytes between osteoporosis mice and control. Then, we obtained gene expression profiles of MSCs and monocytes, and screened differentially expressed genes for enrichment analysis. Next, we cluster the patients with osteoporosis according to genes related to osteogenesis inhibition and osteoclast promotion. Finally, according to the expression of different subtypes of ferroptosis genes, diagnostic markers were screened and verified. RESULTS The osteogenic differentiation ability of MSCs in osteoporosis mice was decreased, while the osteoclast differentiation ability of monocytes was enhanced. The DEGs of MSCs are enriched in iron ion, oxygen binding and cytokine activity, while the DEGs of monocytes are enriched in iron ion transmembrane transport and ferroptosis. Compared with the osteogenic inhibition subtype, the osteoclast promoting subtype has a higher correlation with ferroptosis, and its functions are enriched in fatty acids, reactive oxygen species metabolism and oxidoreductase activity of metal ions. SLC40A1 may be the hub gene of ferroptosis in osteoporosis by promoting osteoclast differentiation. CONCLUSION Ferroptosis may inhibit bone formation and promote bone absorption through oxidative stress, thus leading to osteoporosis. The study of ferroptosis on osteoblasts and osteoclasts provides a new idea for the diagnosis and treatment of osteoporosis.
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Affiliation(s)
- Zhihai Cao
- Department of Emergency, The Third Affiliated Hospital of Soochow University, Changzhou 213000, China
| | - Yuan Xue
- Department of Orthopaedic, Wuxi Ninth People’s Hospital of Soochow University, Wuxi 214000, China
| | - Jiaqian Wang
- Department of Orthopaedic, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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14
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Uehara DT, Muramatsu T, Ishii S, Suzuki H, Fukushima K, Arasaki Y, Hayata T, Inazawa J, Ezura Y. Identification of a Biallelic Missense Variant in Gasdermin D (c.823G > C, p.Asp275His) in a Patient of Atypical Gorham-Stout Disease in a Consanguineous Family. JBMR Plus 2023; 7:e10784. [PMID: 37701150 PMCID: PMC10494506 DOI: 10.1002/jbm4.10784] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/08/2023] [Accepted: 05/26/2023] [Indexed: 09/14/2023] Open
Abstract
Gorham-Stout disease (GSD), also called vanishing bone disease, is a rare osteolytic disease, frequently associated with lymphangiomatous tissue proliferation. The causative genetic background has not been noted except for a case with a somatic mutation in KRAS. However, in the present study, we encountered a case of GSD from a consanguineous family member. Whole-exome sequencing (WES) analysis focusing on rare recessive variants with zero homozygotes in population databases identified a homozygous missense variant (c.823G > C, p.Asp275His) in gasdermin D (GSDMD) in the patient and heterozygous in his unaffected brother. Because this variant affects the Asp275 residue that is involved in proteolytic cleavage by caspase-11 (as well as -4 and -5) to generate an activating p30 fragment required for pyroptotic cell death and proinflammation, we confirmed the absence of this cleavage product in peripheral monocytic fractions from the patient. A recent study indicated that a shorter p20 fragment, generated by further cleavage at Asp88, has a cell-autonomous function to suppress the maturation of osteoclasts to resorb bone matrix. Thus, the present study suggests for the first time the existence of hereditary GSD cases or novel GSD-like diseases caused by GSDMD deficiency. © 2023 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Daniela Tiaki Uehara
- Department of Molecular CytogeneticsMedical Research Institute, Tokyo Medical and Dental University (TMDU)TokyoJapan
| | - Tomoki Muramatsu
- Department of Molecular CytogeneticsMedical Research Institute, Tokyo Medical and Dental University (TMDU)TokyoJapan
| | - Senichi Ishii
- Saku Central Hospital Advanced Care CenterSakuJapan
- Present address:
Ome Municipal General Hospital, OmeTokyoJapan
| | - Hidetsugu Suzuki
- Saku Central Hospital Advanced Care CenterSakuJapan
- Present address:
Department of Orthopedic SurgeryDokkyo Medical UniversitySaitamaJapan
| | | | - Yasuhiro Arasaki
- Department of Molecular Pharmacology, Graduate School of Pharmaceutical Sciences and Faculty of Pharmaceutical SciencesTokyo University of ScienceChibaJapan
| | - Tadayoshi Hayata
- Department of Molecular Pharmacology, Graduate School of Pharmaceutical Sciences and Faculty of Pharmaceutical SciencesTokyo University of ScienceChibaJapan
| | - Johji Inazawa
- Department of Molecular CytogeneticsMedical Research Institute, Tokyo Medical and Dental University (TMDU)TokyoJapan
- Research Core, TMDUTokyoJapan
| | - Yoichi Ezura
- Department of Joint Surgery and Sports MedicineTMDUTokyoJapan
- Department of Occupational Therapy, Faculty of Health and Medical ScienceTeikyo Heisei UniversityTokyoJapan
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15
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Tao S, Yu H, You T, Kong X, Wei X, Zheng Z, Zheng L, Feng Z, Huang B, Zhang X, Chen F, Chen X, Song H, Li J, Chen B, Chen J, Yao Q, Zhao F. A Dual-Targeted Metal-Organic Framework Based Nanoplatform for the Treatment of Rheumatoid Arthritis by Restoring the Macrophage Niche. ACS NANO 2023. [PMID: 37429012 DOI: 10.1021/acsnano.3c03828] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
Inflammatory infiltration and bone destruction are important pathological features of rheumatoid arthritis (RA), which originate from the disturbed niche of macrophages. Here, we identified a niche-disrupting process in RA: due to overactivation of complement, the barrier function of VSIg4+ lining macrophages is disrupted and mediates inflammatory infiltration within the joint, thereby activating excessive osteoclastogenesis and bone resorption. However, complement antagonists have poor biological applications due to superphysiologic dose requirements and inadequate effects on bone resorption. Therefore, we developed a dual-targeted therapeutic nanoplatform based on the MOF framework to achieve bone-targeted delivery of the complement inhibitor CRIg-CD59 and pH-responsive sustained release. The surface-mineralized zoledronic acid (ZA) of ZIF8@CRIg-CD59@HA@ZA targets the skeletal acidic microenvironment in RA, and the sustained release of CRIg-CD59 can recognize and prevent the complement membrane attack complex (MAC) from forming on the surface of healthy cells. Importantly, ZA can inhibit osteoclast-mediated bone resorption, and CRIg-CD59 can promote the repair of the VSIg4+ lining macrophage barrier to achieve sequential niche remodeling. This combination therapy is expected to treat RA by reversing the core pathological process, circumventing the pitfalls of traditional therapy.
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Affiliation(s)
- Siyue Tao
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016 Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016 Zhejiang, China
| | - Hao Yu
- National Engineering Research Center of Ophthalmology and Optometry, School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, 325027 Zhejiang, China
| | - Tao You
- The First Affiliated Hospital of USTC, Division of Life Science and Medicine, and CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026 Anhui, China
| | - Xiangxi Kong
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016 Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016 Zhejiang, China
| | - Xiaoan Wei
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016 Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016 Zhejiang, China
| | - Zeyu Zheng
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016 Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016 Zhejiang, China
| | - Lin Zheng
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016 Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016 Zhejiang, China
| | - Zhenhua Feng
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016 Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016 Zhejiang, China
| | - Bao Huang
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016 Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016 Zhejiang, China
| | - Xuyang Zhang
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016 Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016 Zhejiang, China
| | - Feng Chen
- The First Affiliated Hospital of USTC, Division of Life Science and Medicine, and CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026 Anhui, China
| | - Xiao Chen
- The First Affiliated Hospital of USTC, Division of Life Science and Medicine, and CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026 Anhui, China
| | - Haixin Song
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016 Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016 Zhejiang, China
| | - Jie Li
- Department of Orthopaedic Surgery, Ningbo Medical Center Li Huili Hospital, Ningbo, 315100 Zhejiang, China
| | - Binhui Chen
- Department of Orthopaedic Surgery, Ningbo Medical Center Li Huili Hospital, Ningbo, 315100 Zhejiang, China
| | - Jian Chen
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016 Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016 Zhejiang, China
- Department of Orthopedic Surgery, Wenzhou Medical University First Affiliated Hospital, Wenzhou, 325000 Zhejiang, China
| | - Qingqing Yao
- National Engineering Research Center of Ophthalmology and Optometry, School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, 325027 Zhejiang, China
| | - Fengdong Zhao
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016 Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016 Zhejiang, China
- Department of Orthopedic Surgery, Wenzhou Medical University First Affiliated Hospital, Wenzhou, 325000 Zhejiang, China
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16
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Chakraborty S, Schneider J, Mitra DK, Kubatzky KF. Mechanistic insight of interleukin-9 induced osteoclastogenesis. Immunology 2023; 169:309-322. [PMID: 36732282 PMCID: PMC7615986 DOI: 10.1111/imm.13630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 01/03/2023] [Indexed: 02/04/2023] Open
Abstract
Interleukin (IL)-9 is an emerging player in the pathogenesis of various chronic inflammatory diseases including bone disorders like rheumatoid arthritis (RA) and psoriatic arthritis. Recently, IL-9 was shown to enhance the osteoclast formation and their function in RA. However, the mechanisms by which IL-9 influences osteoclastogenesis are not known. Therefore, in this study we aimed to unravel the direct and indirect ways by which IL-9 can influence osteoclast formation. We used mouse bone marrow precursor cells for checking the effect of IL-9 on osteoclast differentiation and its function. Next, IL-9 induced signalling pathway were checked in the process of osteoclastogenesis. T cells play an important role in enhancing osteoclastogenesis in inflammatory conditions. We used splenic T cells to understand the impact of IL-9 on the functions of T effector (Teff) and regulatory T (Treg) cells. Furthermore, the effect of IL-9 mediated modulation of the T cell response on osteoclasts was checked using a coculture model of T cells with osteoclast precursors. We showed that IL-9 enhanced osteoclast formation and its function. We found that IL-9 activates STAT3, P38 MAPK, ERK1/2, NFκB and we hypothesize that it mediates the effect on osteoclastogenesis by accelerating mitochondrial biogenesis. Additionally, IL-9 was observed to facilitate the functions of pro-osteoclastogenic IL-17 producing T cells, but inhibits the function of anti-osteoclastogenic Treg cells. Our observations suggest that IL-9 can influence osteoclastogenesis directly by modulating the signalling cascade in the precursor cells; indirectly by enhancing IL-17 producing T cells and by reducing the functions of Treg cells.
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Affiliation(s)
- Sushmita Chakraborty
- Department of Infectious Diseases, Medical Microbiology and Hygiene, Heidelberg University, Heidelberg, Germany
- Department of Transplant Immunology and Immunogenetics, All India Institute of Medical Sciences, New Delhi, India
| | - Jakob Schneider
- Department of Infectious Diseases, Medical Microbiology and Hygiene, Heidelberg University, Heidelberg, Germany
| | - Dipendra Kumar Mitra
- Department of Transplant Immunology and Immunogenetics, All India Institute of Medical Sciences, New Delhi, India
| | - Katharina F. Kubatzky
- Department of Infectious Diseases, Medical Microbiology and Hygiene, Heidelberg University, Heidelberg, Germany
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17
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Feng C, Liu Y, Zhang BY, Zhang H, Shan FY, Li TQ, Zhao ZN, Wang XX, Zhang XY. Rapamycin Inhibits Osteoclastogenesis and Prevents LPS-Induced Alveolar Bone Loss by Oxidative Stress Suppression. ACS OMEGA 2023; 8:20739-20754. [PMID: 37323396 PMCID: PMC10268267 DOI: 10.1021/acsomega.3c01289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/18/2023] [Indexed: 06/17/2023]
Abstract
Periodontitis is a progressive inflammatory skeletal disease characterized by periodontal tissue destruction, alveolar bone resorption, and tooth loss. Chronic inflammatory response and excessive osteoclastogenesis play essential roles in periodontitis progression. Unfortunately, the pathogenesis that contributes to periodontitis remains unclear. As a specific inhibitor of the mTOR (mammalian/mechanistic target of rapamycin) signaling pathway and the most common autophagy activator, rapamycin plays a vital role in regulating various cellular processes. The present study investigated the effects of rapamycin on osteoclast (OC) formation in vitro and its effects on the rat periodontitis model. The results showed that rapamycin inhibited OC formation in a dose-dependent manner by up-regulating the Nrf2/GCLC signaling pathway, thus suppressing the intracellular redox status, as measured by 2',7'-dichlorofluorescein diacetate and MitoSOX. In addition, rather than simply increasing the autophagosome formation, rapamycin increased the autophagy flux during OC formation. Importantly, the anti-oxidative effect of rapamycin was regulated by an increase in autophagy flux, which could be attenuated by blocking autophagy with bafilomycin A1. In line with the in vitro results, rapamycin treatment attenuated alveolar bone resorption in rats with lipopolysaccharide-induced periodontitis in a dose-dependent manner, as assessed by micro-computed tomography, hematoxylin-eosin staining, and tartrate-resistant acid phosphatase staining. Besides, high-dose rapamycin treatment could reduce the serum levels of proinflammatory factors and oxidative stress in periodontitis rats. In conclusion, this study expanded our understanding of rapamycin's role in OC formation and protection from inflammatory bone diseases.
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Affiliation(s)
- Chong Feng
- School
and Hospital of Stomatology, Tianjin Medical
University, Tianjin 300070, China
- Tianjin
Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Yan Liu
- Tianjin
Institute of Environmental and Operational Medicine, Tianjin 300050, China
- Lanzhou
University, Lanzhou 730000, China
| | - Bao-Yi Zhang
- Tianjin
Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Hao Zhang
- School
and Hospital of Stomatology, Tianjin Medical
University, Tianjin 300070, China
- Tianjin
Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Fa-Yu Shan
- School
and Hospital of Stomatology, Tianjin Medical
University, Tianjin 300070, China
- Tianjin
Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Tian-Qi Li
- School
and Hospital of Stomatology, Tianjin Medical
University, Tianjin 300070, China
- Tianjin
Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Zhi-Ning Zhao
- School
and Hospital of Stomatology, Tianjin Medical
University, Tianjin 300070, China
| | - Xin-Xing Wang
- Tianjin
Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Xiang-Yu Zhang
- School
and Hospital of Stomatology, Tianjin Medical
University, Tianjin 300070, China
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18
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Seeling M, Pöhnl M, Kara S, Horstmann N, Riemer C, Wöhner M, Liang C, Brückner C, Eiring P, Werner A, Biburger M, Altmann L, Schneider M, Amon L, Lehmann CHK, Lee S, Kunz M, Dudziak D, Schett G, Bäuerle T, Lux A, Tuckermann J, Vögtle T, Nieswandt B, Sauer M, Böckmann RA, Nimmerjahn F. Immunoglobulin G-dependent inhibition of inflammatory bone remodeling requires pattern recognition receptor Dectin-1. Immunity 2023; 56:1046-1063.e7. [PMID: 36948194 DOI: 10.1016/j.immuni.2023.02.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 09/14/2022] [Accepted: 02/24/2023] [Indexed: 03/24/2023]
Abstract
Immunoglobulin G (IgG) antibodies are major drivers of inflammation during infectious and autoimmune diseases. In pooled serum IgG (IVIg), however, antibodies have a potent immunomodulatory and anti-inflammatory activity, but how this is mediated is unclear. We studied IgG-dependent initiation of resolution of inflammation in cytokine- and autoantibody-driven models of rheumatoid arthritis and found IVIg sialylation inhibited joint inflammation, whereas inhibition of osteoclastogenesis was sialic acid independent. Instead, IVIg-dependent inhibition of osteoclastogenesis was abrogated in mice lacking receptors Dectin-1 or FcγRIIb. Atomistic molecular dynamics simulations and super-resolution microscopy revealed that Dectin-1 promoted FcγRIIb membrane conformations that allowed productive IgG binding and enhanced interactions with mouse and human IgG subclasses. IVIg reprogrammed monocytes via FcγRIIb-dependent signaling that required Dectin-1. Our data identify a pathogen-independent function of Dectin-1 as a co-inhibitory checkpoint for IgG-dependent inhibition of mouse and human osteoclastogenesis. These findings may have implications for therapeutic targeting of autoantibody and cytokine-driven inflammation.
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Affiliation(s)
- Michaela Seeling
- Division of Genetics, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Matthias Pöhnl
- Computational Biology, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Sibel Kara
- Division of Genetics, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Nathalie Horstmann
- Division of Genetics, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Carolina Riemer
- Division of Genetics, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Miriam Wöhner
- Division of Genetics, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Chunguang Liang
- Division of Medical Informatics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Christin Brückner
- Division of Genetics, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Patrick Eiring
- Department of Biotechnology and Biophysics, Biocenter, Julius-Maximilians-University Würzburg, Würzburg, Germany
| | - Anja Werner
- Division of Genetics, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Markus Biburger
- Division of Genetics, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Leon Altmann
- Division of Genetics, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Martin Schneider
- Division of Genetics, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Lukas Amon
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, 91052 Erlangen, Germany
| | - Christian H K Lehmann
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, 91052 Erlangen, Germany
| | - Sooyeon Lee
- Institute of Comparative Molecular Endocrinology, University of Ulm, 89081 Ulm, Germany
| | - Meik Kunz
- Division of Medical Informatics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Hannover, Germany; Fraunhofer Cluster of Excellence Immune-Mediated Diseases (CIMD), Hannover, Germany
| | - Diana Dudziak
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, 91052 Erlangen, Germany
| | - Georg Schett
- Department of Internal Medicine 3, University Hospital Erlangen, 91052 Erlangen, Germany
| | - Tobias Bäuerle
- Preclinical Imaging Platform Erlangen, Institute of Radiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Anja Lux
- Division of Genetics, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Jan Tuckermann
- Institute of Comparative Molecular Endocrinology, University of Ulm, 89081 Ulm, Germany
| | - Timo Vögtle
- Institute of Experimental Biomedicine, University Hospital Würzburg and Rudolf Virchow Center for Integrative and Translational Bioimaging, Josef-Schneider-Straße 2, 97080 Würzburg, Germany
| | - Bernhardt Nieswandt
- Institute of Experimental Biomedicine, University Hospital Würzburg and Rudolf Virchow Center for Integrative and Translational Bioimaging, Josef-Schneider-Straße 2, 97080 Würzburg, Germany
| | - Markus Sauer
- Department of Biotechnology and Biophysics, Biocenter, Julius-Maximilians-University Würzburg, Würzburg, Germany
| | - Rainer A Böckmann
- Computational Biology, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany; Erlangen National High Performance Computing Center (NHR@FAU), Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Falk Nimmerjahn
- Division of Genetics, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany; Medical Immunology Campus Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany.
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19
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Li Q, Yue T, Du X, Tang Z, Cui J, Wang W, Xia W, Ren B, Kan S, Li C, Wu C, Niu X, Li B, Lin K, Luo J, Chen G, Wang Z. HSC70 mediated autophagic degradation of oxidized PRL2 is responsible for osteoclastogenesis and inflammatory bone destruction. Cell Death Differ 2023; 30:647-659. [PMID: 36182990 PMCID: PMC9984420 DOI: 10.1038/s41418-022-01068-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 02/25/2023] Open
Abstract
Inflammation leads to systemic osteoporosis or local bone destruction, however, the underlying molecular mechanisms are still poorly understood. In this study, we report that PRL2 is a negative regulator of osteoclastogenesis and bone absorption. Mice with PRL2 deficiency exhibit a decrease in bone volume and an increase in osteoclast numbers. PRL2 negatively regulates RANKL-induced reactive oxygen species production through the activation of RAC1, thus PRL2 deficient osteoclast precursors have both increased osteoclast differentiation ability and bone resorptive capacity. During inflammation, oxidized PRL2 is a selected substrate of HSC70 and conditions of oxidative stress trigger rapid degradation of PRL2 by HSC70 mediated endosomal microautophagy and chaperone-mediated autophagy. Ablation of PRL2 in mouse models of inflammatory bone disease leads to an increase in the number of osteoclasts and exacerbation of bone damage. Moreover, reduced PRL2 protein levels in peripheral myeloid cells are highly correlated with bone destruction in a mouse arthritis model and in human rheumatoid arthritis, while the autophagy inhibitor hydroxychloroquine blocked inflammation-induced PRL2 degradation and bone destruction in vivo. Therefore, our findings identify PRL2 as a new regulator in osteoimmunity, providing a link between inflammation and osteoporosis. As such, PRL2 is a potential therapeutic target for inflammatory bone disease and inhibition of HSC70 mediated autophagic degradation of PRL2 may offer new therapeutic tools for the treatment of inflammatory bone disease.
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Affiliation(s)
- Qi Li
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Tao Yue
- Department of Rheumatology, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200052, China
| | - Xinyue Du
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Zaiming Tang
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Jinjie Cui
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Weifeng Wang
- Department of Rheumatology, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200052, China
| | - Wenjie Xia
- Department of Rheumatology, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200052, China
| | - Baiyang Ren
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Shuo Kan
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Chang Li
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Chenyun Wu
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xiaoyin Niu
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Bin Li
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Kaili Lin
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Jian Luo
- Yangzhi Rehabilitation Hospital (Sunshine Rehabilitation Center), Tongji University School of Medicine, Shanghai, 201619, China
| | - Guangjie Chen
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Zhaojun Wang
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
- Key Laboratory of Parasite and Vector Biology, Ministry of Health, China; School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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20
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Apaza Alccayhuaman KA, Heimel P, Lee JS, Tangl S, Kuchler U, Marchesan J, Panahipour L, Lettner S, Matalová E, Gruber R. FasL is a catabolic factor in alveolar bone homeostasis. J Clin Periodontol 2023; 50:396-405. [PMID: 36384160 PMCID: PMC10946845 DOI: 10.1111/jcpe.13750] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/20/2022] [Accepted: 11/06/2022] [Indexed: 11/18/2022]
Abstract
AIM Fas ligand (FasL) belongs to the tumour necrosis factor superfamily regulating bone turnover, inflammation, and apoptosis. The appendicular and axial skeleton phenotype of mature Faslgld mice has been reported. The impact of FasL on the alveolar bone providing support for the teeth at mature stages under healthy and induced inflammatory conditions remains unknown. MATERIALS AND METHODS We performed a phenotypical analysis of mice carrying the homozygous Faslgld mutation and wild-type (WT) mice (C57BL/6) under healthy conditions and upon ligature-induced periodontitis. After 12 days, micro-computed tomography analysis revealed the distance between the cement enamel junction and the alveolar bone crest. Additional structural parameters, such as the bone volume fraction (BV/TV) and the periodontal ligament space volume, were measured. Histological analyses were performed to visualize the catabolic changes at the defect site. RESULTS Healthy Faslgld mice were found to have more periodontal bone than their WT littermates. Faslgld had no significant effect on inflammatory osteolysis compared to WT controls with ligatures. Histology revealed eroded surfaces at the root and in the inter-proximal bone in both strains. CONCLUSIONS Our findings suggest that FasL is a catabolic factor in alveolar bone homeostasis but it does not affect the inflammatory osteolysis.
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Affiliation(s)
- Karol Alí Apaza Alccayhuaman
- Department of Oral BiologyUniversity Clinic of Dentistry, Medical University of ViennaViennaAustria
- Karl Donath Laboratory for Hard Tissue and Biomaterial ResearchUniversity Clinic of Dentistry, Medical University of ViennaViennaAustria
| | - Patrick Heimel
- Karl Donath Laboratory for Hard Tissue and Biomaterial ResearchUniversity Clinic of Dentistry, Medical University of ViennaViennaAustria
- Department for BioimagingLudwig Boltzmann Institute for Traumatology, The Research Center in Cooperation With AUVAViennaAustria
- Austrian Cluster for Tissue RegenerationViennaAustria
| | - Jung Seok Lee
- Department of Oral BiologyUniversity Clinic of Dentistry, Medical University of ViennaViennaAustria
- Department of PeriodontologyResearch Institute for Periodontal Regeneration, College of Dentistry, Yonsei UniversitySeoulRepublic of Korea
| | - Stefan Tangl
- Karl Donath Laboratory for Hard Tissue and Biomaterial ResearchUniversity Clinic of Dentistry, Medical University of ViennaViennaAustria
- Austrian Cluster for Tissue RegenerationViennaAustria
| | - Ulrike Kuchler
- Department of Oral SurgeryUniversity Clinic of Dentistry, Medical University of ViennaViennaAustria
| | - Julie Marchesan
- Division of Comprehensive Oral HealthAdams School of Dentistry, University of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Layla Panahipour
- Department of Oral BiologyUniversity Clinic of Dentistry, Medical University of ViennaViennaAustria
| | - Stefan Lettner
- Karl Donath Laboratory for Hard Tissue and Biomaterial ResearchUniversity Clinic of Dentistry, Medical University of ViennaViennaAustria
- Austrian Cluster for Tissue RegenerationViennaAustria
| | - Eva Matalová
- Laboratory of Odontogenesis and OsteogenesisInstitute of Animal Physiology and Genetics, Czech Academy of SciencesBrnoCzech Republic
| | - Reinhard Gruber
- Department of Oral BiologyUniversity Clinic of Dentistry, Medical University of ViennaViennaAustria
- Austrian Cluster for Tissue RegenerationViennaAustria
- Department of PeriodontologySchool of Dental Medicine, University of BernBernSwitzerland
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21
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Hasegawa Y, Franks JM, Tanaka Y, Uehara Y, Read DF, Williams C, Srivatsan S, Pitstick LB, Nikolaidis NM, Shaver CM, Wu H, Gardner JC, Osterburg AR, Yu JJ, Kopras EJ, Teitelbaum SL, Wikenheiser-Brokamp KA, Trapnell C, McCormack FX. Pulmonary osteoclast-like cells in silica induced pulmonary fibrosis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.17.528996. [PMID: 36824953 PMCID: PMC9949165 DOI: 10.1101/2023.02.17.528996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
The pathophysiology of silicosis is poorly understood, limiting development of therapies for those who have been exposed to the respirable particle. We explored the mechanisms of silica-induced pulmonary fibrosis in a mouse model using multiple modalities including whole-lung single-nucleus RNA sequencing. These analyses revealed that in addition to pulmonary inflammation and fibrosis, intratracheal silica challenge induced osteoclast-like differentiation of alveolar macrophages and recruited monocytes, driven by induction of the osteoclastogenic cytokine, receptor activator of nuclear factor-κB ligand (RANKL) in pulmonary lymphocytes and alveolar type II cells. Furthermore, anti-RANKL monoclonal antibody treatment suppressed silica-induced osteoclast-like differentiation in the lung and attenuated silica-induced pulmonary fibrosis. We conclude that silica induces osteoclast-like differentiation of distinct recruited and tissue resident monocyte populations, leading to progressive lung injury, likely due to sustained elaboration of bone resorbing proteases and hydrochloric acid. Interrupting osteoclast-like differentiation may therefore constitute a promising avenue for moderating lung damage in silicosis.
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Affiliation(s)
- Yoshihiro Hasegawa
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati – Cincinnati, OH/US
| | - Jennifer M. Franks
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Yusuke Tanaka
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati – Cincinnati, OH/US
| | - Yasuaki Uehara
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati – Cincinnati, OH/US
| | - David F. Read
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Claire Williams
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Sanjay Srivatsan
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Lori B. Pitstick
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati – Cincinnati, OH/US
| | - Nikolaos M. Nikolaidis
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati – Cincinnati, OH/US
| | - Ciara M. Shaver
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center – Nashville, TN/US
| | - Huixing Wu
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati – Cincinnati, OH/US
| | - Jason C. Gardner
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati – Cincinnati, OH/US
| | - Andrew R. Osterburg
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati – Cincinnati, OH/US
| | - Jane J. Yu
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati – Cincinnati, OH/US
| | - Elizabeth J. Kopras
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati – Cincinnati, OH/US
| | - Steven L. Teitelbaum
- Department of Pathology and Immunology, and Division of Bone and Mineral Diseases, Department of Medicine, Washington University School of Medicine – St. Louis, MO/US
| | - Kathryn A. Wikenheiser-Brokamp
- Division of Pathology & Laboratory Medicine and Perinatal Institute, Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center – Cincinnati, OH/US, Department of Pathology & Laboratory Medicine, University of Cincinnati – Cincinnati, OH/US
| | - Cole Trapnell
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Francis X. McCormack
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati – Cincinnati, OH/US
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22
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Zhu L, Wang Z, Sun X, Yu J, Li T, Zhao H, Ji Y, Peng B, Du M. STAT3/Mitophagy Axis Coordinates Macrophage NLRP3 Inflammasome Activation and Inflammatory Bone Loss. J Bone Miner Res 2023; 38:335-353. [PMID: 36502520 DOI: 10.1002/jbmr.4756] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 11/06/2022] [Accepted: 11/30/2022] [Indexed: 12/14/2022]
Abstract
Signal transducer and activator of transcription 3 (STAT3), a cytokine-responsive transcription factor, is known to play a role in immunity and bone remodeling. However, whether and how STAT3 impacts macrophage NLR family pyrin domain containing 3 (NLRP3) inflammasome activation associated with inflammatory bone loss remains unknown. Here, STAT3 signaling is hyperactivated in macrophages in the context of both non-sterile and sterile inflammatory osteolysis, and this was highly correlated with the cleaved interleukin-1β (IL-1β) expression pattern. Strikingly, pharmacological inhibition of STAT3 markedly blocks macrophage NLRP3 inflammasome activation in vitro, thereby relieving inflammatory macrophage-amplified osteoclast formation and bone-resorptive activity. Mechanistically, STAT3 inhibition in macrophages triggers PTEN-induced kinase 1 (PINK1)-dependent mitophagy that eliminates dysfunctional mitochondria, reverses mitochondrial membrane potential collapse, and inhibits mitochondrial reactive oxygen species release, thus inactivating the NLRP3 inflammasome. In vivo, STAT3 inhibition effectively protects mice from both infection-induced periapical lesions and aseptic titanium particle-mediated calvarial bone erosion with potent induction of PINK1 and downregulation of inflammasome activation, macrophage infiltration, and osteoclast formation. This study reveals the regulatory role of the STAT3/mitophagy axis at the osteo-immune interface and highlights a potential therapeutic intervention to prevent inflammatory bone loss. © 2022 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Lingxin Zhu
- 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
| | - Zijun 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
| | - Xiaoyue Sun
- 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
| | - Jingjing Yu
- 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
| | - Ting Li
- 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
| | - Huan Zhao
- 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
| | - Yaoting Ji
- 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
| | - Bin Peng
- 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
| | - Minquan Du
- 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
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23
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Yang Y, Sheng D, Shi J, Xiao L, Wang Z, Yin Z, Zhuang Q, Chen S, Li Y, Gu Y, Zhu J, Geng D, Wang Z. Avicularin alleviates osteoporosis-induced implant loosening by attenuating macrophage M1 polarization via its inhibitory effect on the activation of NF-κB. Biomed Pharmacother 2023; 158:114113. [PMID: 36516692 DOI: 10.1016/j.biopha.2022.114113] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/29/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
Currently, the failure rate for internal fixation in patients with osteoporosis can be reduced by antiosteoporosis therapy alone. However, the administration of anti-osteoporotic drugs is not a complete solution. Therefore, it is necessary to investigate other causes of surgical failure, such as inflammation. In recent years, the inflammation caused by macrophage M1 polarization has garnered wide attention. The purpose of this research is to explore the inhibitory effect of avicularin (AL) on macrophage M1 polarization, by which it ameliorates inflammation, thus alleviating implant instability. We established an osteoporosis mouse model of implant loosening. The mouse tissues were taken out for morphological analysis, staining analysis and bone metabolic index analysis. In in vitro experiments, bone marrow derived macrophages (BMDM) and RAW264.7 cells were polarized to M1 macrophages using lipopolysaccharide (LPS), and analyzed by immunofluorescence (IF) staining, Western blot (WB) and flow cytometry. WB was also used to analyze the nuclear factor kappa-B (NF-κB) pathway. In addition, the expression levels of inflammatory cytokines were detected in cell supernatant using ELISA kits. Through observation of this experiments, we found that AL can inhibit M1 polarization of macrophages. Moreover, it can significantly inhibit the release of inflammatory factors to improve multiple mouse femur parameters. Furthermore, AL inhibited the phosphorylation of IKBα and P65 in the NF-κB pathway. The above data indicate that AL ameliorates inflammatory responses by inhibiting macrophage M1 polarization via its inhibitory effect on the NF-κB pathway, thus alleviating the instability of implants in mice with osteoporosis.
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Affiliation(s)
- Yunshang Yang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Dong Sheng
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Jiandong Shi
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Long Xiao
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215600, China.
| | - Zhifang Wang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Zhengyu Yin
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Qi Zhuang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China
| | - Shuangshuang Chen
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China
| | - Yajun Li
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Yong Gu
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Jie Zhu
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215600, China.
| | - Zhirong Wang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China.
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Abstract
Osteoclasts are multinucleated cells with the unique ability to resorb bone matrix. Excessive production or activation of osteoclasts leads to skeletal pathologies that affect a significant portion of the population. Although therapies that effectively target osteoclasts have been developed, they are associated with sometimes severe side effects, and a fuller understanding of osteoclast biology may lead to more specific treatments. Along those lines, a rich body of work has defined essential signaling pathways required for osteoclast formation, function, and survival. Nonetheless, recent studies have cast new light on long-held views regarding the origin of these cells during development and homeostasis, their life span, and the cellular sources of factors that drive their production and activity during homeostasis and disease. In this review, we discuss these new findings in the context of existing work and highlight areas of ongoing and future investigation.
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Affiliation(s)
- Deborah J Veis
- Division of Bone and Mineral Diseases, Musculoskeletal Research Center; and Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA; .,Shriners Hospitals for Children, St. Louis, Missouri, USA
| | - Charles A O'Brien
- Center for Musculoskeletal Disease Research, Division of Endocrinology, and Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA.,Central Arkansas Veterans Healthcare System, Little Rock, Arkansas, USA
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25
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Chen Y, Du J, Liu Y, Luo Z, Guo L, Xu J, Jia L, Liu Y. γδT cells in oral tissue immune surveillance and pathology. Front Immunol 2023; 13:1050030. [PMID: 36703983 PMCID: PMC9871479 DOI: 10.3389/fimmu.2022.1050030] [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: 09/21/2022] [Accepted: 12/21/2022] [Indexed: 01/12/2023] Open
Abstract
The oral mucosa's immune system is composed of tissue-resident and specifically recruited leukocytes that could effectively tolerate a wide range of microbial and mechanical assaults. Shortly after CD4+ helper T cells (TH17 cells) that produce interleukin 17 (IL-17) were identified, it was discovered that γδT cells could also induce substantial levels of this pro-inflammatory cytokine. In the past decades, it has become clear that due to a complicated thymic program of development, γδT cells frequently serve as the primary sources of IL-17 in numerous models of inflammatory diseases while also assisting in the maintenance of tissue homeostasis in the skin and intestine. But it wasn't until recently that we took thorough insight into the complex features of γδT cells in the oral mucosa. Most gingival intraepithelial γδT cells reside in the junctional epithelium adjacent to the dental biofilm, suggesting their potential role in regulating oral microbiota. However, inconsistent results have been published in this regard. Similarly, recent findings showed contradictory data about the role of γδT lymphocytes in experimental periodontitis based on different models. In addition, conflicting findings were presented in terms of alveolar bone physiology and pathology underlying the oral mucosa. This review provided an overview of current knowledge and viewpoints regarding the complex roles played by oral-resident γδT cells in host-microbiota interactions, gingivitis and periodontitis, bone physiology and pathology.
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Affiliation(s)
- Yilong Chen
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, School of Stomatology, Capital Medical University, Beijing, China,Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Juan Du
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, School of Stomatology, Capital Medical University, Beijing, China,Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Yitong Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, School of Stomatology, Capital Medical University, Beijing, China,Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Zhenhua Luo
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, School of Stomatology, Capital Medical University, Beijing, China,Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Lijia Guo
- Department of Orthodontics School of Stomatology, Capital Medical University, Beijing, China
| | - Junji Xu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, School of Stomatology, Capital Medical University, Beijing, China,Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Lu Jia
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, School of Stomatology, Capital Medical University, Beijing, China,Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China,*Correspondence: Lu Jia, ; Yi Liu,
| | - Yi Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, School of Stomatology, Capital Medical University, Beijing, China,Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China,*Correspondence: Lu Jia, ; Yi Liu,
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26
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Wu Z, Li X, Chen X, He X, Chen Y, Zhang L, Li Z, Yang M, Yuan G, Shi B, Chen N, Li N, Feng H, Zhou M, Rui G, Xu F, Xu R. Phosphatidyl Inositol 3-Kinase (PI3K)-Inhibitor CDZ173 protects against LPS-induced osteolysis. Front Pharmacol 2023; 13:1021714. [PMID: 36686650 PMCID: PMC9854393 DOI: 10.3389/fphar.2022.1021714] [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: 08/17/2022] [Accepted: 11/03/2022] [Indexed: 01/09/2023] Open
Abstract
A major complication of a joint replacement is prosthesis loosening caused by inflammatory osteolysis, leading to the revision of the operation. This is due to the abnormal activation of osteoclast differentiation and function caused by periprosthetic infection. Therefore, targeting abnormally activated osteoclasts is still effective for treating osteolytic inflammatory diseases. CDZ173 is a selective PI3K inhibitor widely used in autoimmune-related diseases and inflammatory diseases and is currently under clinical development. However, the role and mechanism of CDZ173 in osteoclast-related bone metabolism remain unclear. The possibility for treating aseptic prosthesis loosening brought on by inflammatory osteolysis illness can be assessed using an LPS-induced mouse cranial calcium osteolysis model. In this study, we report for the first time that CDZ173 has a protective effect on LPS-induced osteolysis. The data show that this protective effect is due to CDZ173 inhibiting the activation of osteoclasts in vivo. Meanwhile, our result demonstrated that CDZ173 had a significant inhibitory effect on RANKL-induced osteoclasts. Furthermore, using the hydroxyapatite resorption pit assay and podosol actin belt staining, respectively, the inhibitory impact of CDZ173 on bone resorption and osteoclast fusion of pre-OC was determined. In addition, staining with alkaline phosphatase (ALP) and alizarin red (AR) revealed that CDZ173 had no effect on osteoblast development in vitro. Lastly, CDZ173 inhibited the differentiation and function of osteoclasts by weakening the signal axis of PI3K-AKT/MAPK-NFATc1 in osteoclasts. In conclusion, our results highlight the potential pharmacological role of CDZ173 in preventing osteoclast-mediated inflammatory osteolysis and its potential clinical application.
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Affiliation(s)
- Zuoxing Wu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China.,The First Affiliated Hospital of Xiamen University-ICMRS Collaborating Center for Skeletal Stem Cell, School of Medicine, Xiamen University, Xiamen, China.,Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, China
| | - Xuedong Li
- Department of Medical Laboratory, The Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou, China
| | - Xiaohui Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China.,The First Affiliated Hospital of Xiamen University-ICMRS Collaborating Center for Skeletal Stem Cell, School of Medicine, Xiamen University, Xiamen, China.,Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, China
| | - Xuemei He
- The First Affiliated Hospital of Xiamen University-ICMRS Collaborating Center for Skeletal Stem Cell, School of Medicine, Xiamen University, Xiamen, China
| | - Yu Chen
- The First Affiliated Hospital of Xiamen University-ICMRS Collaborating Center for Skeletal Stem Cell, School of Medicine, Xiamen University, Xiamen, China
| | - Long Zhang
- The First Affiliated Hospital of Xiamen University-ICMRS Collaborating Center for Skeletal Stem Cell, School of Medicine, Xiamen University, Xiamen, China
| | - Zan Li
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Mengyu Yang
- The First Affiliated Hospital of Xiamen University-ICMRS Collaborating Center for Skeletal Stem Cell, School of Medicine, Xiamen University, Xiamen, China
| | - Guixin Yuan
- The First Affiliated Hospital of Xiamen University-ICMRS Collaborating Center for Skeletal Stem Cell, School of Medicine, Xiamen University, Xiamen, China
| | - Baohong Shi
- The First Affiliated Hospital of Xiamen University-ICMRS Collaborating Center for Skeletal Stem Cell, School of Medicine, Xiamen University, Xiamen, China
| | - Ning Chen
- Department of Endocrinology, Zhongshan Hospital (Xiamen), Fudan University, Xiamen, China
| | - Na Li
- Department of Orthopedic Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China.,The First Affiliated Hospital of Xiamen University-ICMRS Collaborating Center for Skeletal Stem Cell, School of Medicine, Xiamen University, Xiamen, China.,Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, China
| | - Haotian Feng
- Inner Mongolia Dairy Technology Research Institute Co. Ltd., Hohhot, China
| | - Mengyu Zhou
- Department of Dentistry, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Gang Rui
- Department of Orthopedic Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Feng Xu
- Department of Subject Planning, Ninth People's Hospital Shanghai, Jiaotong University School of Medicine, Shanghai, China
| | - Ren Xu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China.,The First Affiliated Hospital of Xiamen University-ICMRS Collaborating Center for Skeletal Stem Cell, School of Medicine, Xiamen University, Xiamen, China.,Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, China.,Research Centre for Regenerative Medicine, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
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27
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Chen X, Cao X, Zheng D, Li C, Chen Y, Kong K, Xu W, Shi B, Chen X, Dai F, Zhang S. Ultrasmall PtAu 2 nanoclusters activate endogenous anti-inflammatory and anti-oxidative systems to prevent inflammatory osteolysis. Theranostics 2023; 13:1010-1027. [PMID: 36793859 PMCID: PMC9925309 DOI: 10.7150/thno.80514] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 01/10/2023] [Indexed: 02/04/2023] Open
Abstract
Rationale: Inflammatory osteolysis, characterized by abundant immune cell infiltration and osteoclast (OC) formation, is a common complication induced by bacterial products and/or wear particles at the bone-prosthesis interface that severely reduces long-term stability after implantation. Molecular nanoclusters are ultrasmall particles with unique physicochemical and biological properties that have great potential as theranostic agents for treating inflammatory diseases. Methods: In this study, heterometallic PtAu2 nanoclusters with sensitive nitric oxide-responsive phosphorescence turn-on characteristics and strong binding interactions with cysteine were designed, making them desirable candidates for the treatment of inflammatory osteolysis. Results: PtAu2 clusters exhibited satisfactory biocompatibility and cellular uptake behavior, with potent anti-inflammatory and anti-OC activities in vitro. In addition, PtAu2 clusters alleviated lipopolysaccharide-induced calvarial osteolysis in vivo and activated nuclear factor erythroid 2-related factor 2 (Nrf2) expression by disrupting its association with Kelch-like ECH-associated protein 1 (Keap1), thereby upregulating the expression of endogenous anti-inflammatory and anti-oxidative products. Conclusion: Through the rational design of novel heterometallic nanoclusters that activate the endogenous anti-inflammatory system, this study provides new insights into the development of multifunctional molecular therapeutic agents for inflammatory osteolysis and other inflammatory diseases.
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Affiliation(s)
- Xuzhuo Chen
- Department of Oral Surgery, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Xiankun Cao
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Dasheng Zheng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
| | - Chang Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
| | - Yan Chen
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Keyu Kong
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Weifeng Xu
- Department of Oral Surgery, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Bin Shi
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350002, Fujian, China
| | - Xinwei Chen
- Department of Oral Surgery, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Fengrong Dai
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
| | - Shanyong Zhang
- Department of Oral Surgery, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
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28
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Ren Y, Bäcker H, Müller M, Kienzle A. The role of myeloid derived suppressor cells in musculoskeletal disorders. Front Immunol 2023; 14:1139683. [PMID: 36936946 PMCID: PMC10020351 DOI: 10.3389/fimmu.2023.1139683] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 02/21/2023] [Indexed: 03/06/2023] Open
Abstract
The immune system is closely linked to bone homeostasis and plays a pivotal role in several pathological and inflammatory conditions. Through various pathways it modulates various bone cells and subsequently sustains the physiological bone metabolism. Myeloid-derived suppressor cells (MDSCs) are a group of heterogeneous immature myeloid-derived cells that can exert an immunosuppressive function through a direct cell-to-cell contact, secretion of anti-inflammatory cytokines or specific exosomes. These cells mediate the innate immune response to chronic stress on the skeletal system. In chronic inflammation, MDSCs act as an inner offset to rebalance overactivation of the immune system. Moreover, they have been found to be involved in processes responsible for bone remodeling in different musculoskeletal disorders, autoimmune diseases, infection, and cancer. These cells can not only cause bone erosion by differentiating into osteoclasts, but also alleviate the immune reaction, subsequently leading to long-lastingly impacted bone remodeling. In this review, we discuss the impact of MDSCs on the bone metabolism under several pathological conditions, the involved modulatory pathways as well as potential therapeutic targets in MDSCs to improve bone health.
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Affiliation(s)
- Yi Ren
- Center for Musculoskeletal Surgery, Clinic for Orthopedics, Charité University Hospital, Berlin, Germany
| | - Henrik Bäcker
- Department of Orthopedics, Auckland City Hospital, Auckland, New Zealand
| | - Michael Müller
- Center for Musculoskeletal Surgery, Clinic for Orthopedics, Charité University Hospital, Berlin, Germany
| | - Arne Kienzle
- Center for Musculoskeletal Surgery, Clinic for Orthopedics, Charité University Hospital, Berlin, Germany
- BIH Charité Clinician Scientist Program, BIH Biomedical Innovation Academy, Berlin Institute of Health, Charité — Universitätsmedizin Berlin, Berlin, Germany
- *Correspondence: Arne Kienzle,
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29
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Hume DA, Batoon L, Sehgal A, Keshvari S, Irvine KM. CSF1R as a Therapeutic Target in Bone Diseases: Obvious but Not so Simple. Curr Osteoporos Rep 2022; 20:516-531. [PMID: 36197652 PMCID: PMC9718875 DOI: 10.1007/s11914-022-00757-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/19/2022] [Indexed: 01/30/2023]
Abstract
PURPOSE OF REVIEW The purpose of the review is to summarize the expression and function of CSF1R and its ligands in bone homeostasis and constraints on therapeutic targeting of this axis. RECENT FINDINGS Bone development and homeostasis depends upon interactions between mesenchymal cells and cells of the mononuclear phagocyte lineage (MPS), macrophages, and osteoclasts (OCL). The homeostatic interaction is mediated in part by the systemic and local production of growth factors, macrophage colony-stimulating factor (CSF1), and interleukin 34 (IL34) that interact with a receptor (CSF1R) expressed exclusively by MPS cells and their progenitors. Loss-of-function mutations in CSF1 or CSF1R lead to loss of OCL and macrophages and dysregulation of postnatal bone development. MPS cells continuously degrade CSF1R ligands via receptor-mediated endocytosis. As a consequence, any local or systemic increase or decrease in macrophage or OCL abundance is rapidly reversible. In principle, both CSF1R agonists and antagonists have potential in bone regenerative medicine but their evaluation in disease models and therapeutic application needs to carefully consider the intrinsic feedback control of MPS biology.
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Affiliation(s)
- David A Hume
- Mater Research Institute-University of Queensland, Translational Research Institute, 37 Kent Street, Woolloongabba, QLD, 4102, Australia.
| | - Lena Batoon
- Mater Research Institute-University of Queensland, Translational Research Institute, 37 Kent Street, Woolloongabba, QLD, 4102, Australia
| | - Anuj Sehgal
- Mater Research Institute-University of Queensland, Translational Research Institute, 37 Kent Street, Woolloongabba, QLD, 4102, Australia
| | - Sahar Keshvari
- Mater Research Institute-University of Queensland, Translational Research Institute, 37 Kent Street, Woolloongabba, QLD, 4102, Australia
| | - Katharine M Irvine
- Mater Research Institute-University of Queensland, Translational Research Institute, 37 Kent Street, Woolloongabba, QLD, 4102, Australia
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30
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Petronglo JR, Putnam NE, Ford CA, Cruz-Victorio V, Curry JM, Butrico CE, Fulbright LE, Johnson JR, Peck SH, Fatah SR, Cassat JE. Context-Dependent Roles for Toll-Like Receptors 2 and 9 in the Pathogenesis of Staphylococcus aureus Osteomyelitis. Infect Immun 2022; 90:e0041722. [PMID: 36226943 PMCID: PMC9670883 DOI: 10.1128/iai.00417-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Staphylococcus aureus is the major causative agent of bacterial osteomyelitis, an invasive infection of bone. Inflammation generated by the immune response to S. aureus contributes to bone damage by altering bone homeostasis. Increases in the differentiation of monocyte lineage cells into bone-resorbing osteoclasts (osteoclastogenesis) promote bone loss in the setting of osteomyelitis. In this study, we sought to define the role of Toll-like receptor (TLR) signaling in the pathogenesis of S. aureus osteomyelitis. We hypothesized that S. aureus-sensing TLRs 2 and 9, both of which are known to alter osteoclastogenesis in vitro, promote pathological changes to bone, including increased osteoclast abundance, bone loss, and altered callus formation during osteomyelitis. Stimulation of osteoclast precursors with S. aureus supernatant increased osteoclastogenesis in a TLR2-dependent, but not a TLR9-dependent, manner. However, in vivo studies using a posttraumatic murine model of osteomyelitis revealed that TLR2-null mice experienced similar bone damage and increased osteoclastogenesis compared to wild type (WT) mice. Therefore, we tested the hypothesis that compensation between TLR2 and TLR9 contributes to osteomyelitis pathogenesis. We found that mice deficient in both TLR2 and TLR9 (Tlr2/9-/-) have decreased trabecular bone loss in response to infection compared to WT mice. However, osteoclastogenesis is comparable between WT and Tlr2/9-/- mice, suggesting that alternative mechanisms enhance osteoclastogenesis in vivo during osteomyelitis. Indeed, we discovered that osteoclast precursors intracellularly infected with S. aureus undergo significantly increased osteoclast formation, even in the absence of TLR2 and TLR9. These results suggest that TLR2 and TLR9 have context-dependent roles in the alteration of bone homeostasis during osteomyelitis.
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Affiliation(s)
- Jenna R. Petronglo
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
| | - Nicole E. Putnam
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
| | - Caleb A. Ford
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Virginia Cruz-Victorio
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
| | - Jacob M. Curry
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
| | - Casey E. Butrico
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
| | - Laura E. Fulbright
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
| | - Joshua R. Johnson
- Vanderbilt Center for Bone Biology, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
| | - Sun H. Peck
- Vanderbilt Center for Bone Biology, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
| | - Sana R. Fatah
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
| | - James E. Cassat
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
- Vanderbilt Center for Bone Biology, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
- Vanderbilt Institute for Infection, Immunology, and Inflammation (VI4), Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA
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31
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Du J, Garcia JP, Bach FC, Tellegen AR, Grad S, Li Z, Castelein RM, Meij BP, Tryfonidou MA, Creemers LB. Intradiscal injection of human recombinant BMP-4 does not reverse intervertebral disc degeneration induced by nuclectomy in sheep. J Orthop Translat 2022; 37:23-36. [PMID: 36196149 PMCID: PMC9513727 DOI: 10.1016/j.jot.2022.08.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 08/16/2022] [Accepted: 08/17/2022] [Indexed: 11/03/2022] Open
Abstract
Background Methods Results Conclusion The Translational Potential of This Article
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32
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Moriarty TF, Metsemakers WJ, Morgenstern M, Hofstee MI, Vallejo Diaz A, Cassat JE, Wildemann B, Depypere M, Schwarz EM, Richards RG. Fracture-related infection. Nat Rev Dis Primers 2022; 8:67. [PMID: 36266296 DOI: 10.1038/s41572-022-00396-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/13/2022] [Indexed: 11/09/2022]
Abstract
Musculoskeletal trauma leading to broken and damaged bones and soft tissues can be a life-threating event. Modern orthopaedic trauma surgery, combined with innovation in medical devices, allows many severe injuries to be rapidly repaired and to eventually heal. Unfortunately, one of the persisting complications is fracture-related infection (FRI). In these cases, pathogenic bacteria enter the wound and divert the host responses from a bone-healing course to an inflammatory and antibacterial course that can prevent the bone from healing. FRI can lead to permanent disability, or long courses of therapy lasting from months to years. In the past 5 years, international consensus on a definition of these infections has focused greater attention on FRI, and new guidelines are available for prevention, diagnosis and treatment. Further improvements in understanding the role of perioperative antibiotic prophylaxis and the optimal treatment approach would be transformative for the field. Basic science and engineering innovations will be required to reduce infection rates, with interventions such as more efficient delivery of antibiotics, new antimicrobials, and optimizing host defences among the most likely to improve the care of patients with FRI.
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Affiliation(s)
- T Fintan Moriarty
- AO Research Institute Davos, Davos, Switzerland.,Center for Musculoskeletal Infections, Department of Orthopaedic and Trauma Surgery, University Hospital Basel, Basel, Switzerland
| | - Willem-Jan Metsemakers
- Department of Trauma Surgery, University Hospitals Leuven, Leuven, Belgium.,Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Mario Morgenstern
- Center for Musculoskeletal Infections, Department of Orthopaedic and Trauma Surgery, University Hospital Basel, Basel, Switzerland
| | | | - Alejandro Vallejo Diaz
- Department of Orthopedics and Traumatology, Hospital Alma Mater de Antioquia, Medellín, Colombia.,Department of Orthopedics and Traumatology, Universidad Pontificia Bolivariana, Medellín, Colombia
| | - James E Cassat
- Department of Paediatrics, Vanderbilt University Medical Center, Nashville, TN, USA.,Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA.,Department of Biomedical Engineering, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Britt Wildemann
- Experimental Trauma Surgery, Department of Trauma, Hand and Reconstructive Surgery, Jena University Hospital, Friedrich Schiller University Jena, Jena, Germany
| | - Melissa Depypere
- Department of Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium.,Department of Microbiology, Immunology and Transplantation, Laboratory of Clinical Bacteriology and Mycology, KU Leuven, Leuven, Belgium
| | - Edward M Schwarz
- Center for Musculoskeletal Research, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - R Geoff Richards
- AO Research Institute Davos, Davos, Switzerland. .,School of Veterinary Science, Aberystwyth University, Aberystwyth, UK.
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Wang G, Alagboso FI, Walter N, Baertl S, Brochhausen C, Docheva D, Rupp M, Alt V. Bone regeneration after marginal bone resection in two-stage treatment of chronic long bone infection - a combined histopathological and clinical pilot study. Injury 2022; 53:3446-3457. [PMID: 35851476 DOI: 10.1016/j.injury.2022.07.008] [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: 03/17/2022] [Revised: 06/06/2022] [Accepted: 07/03/2022] [Indexed: 02/02/2023]
Abstract
INTRODUCTION In chronic bone infection, marginal bone resection avoids large and difficult to reconstruct bone defects. However, there is still a lack of knowledge on bone regeneration during chronic bone infection and bone healing capability after marginal bone resection. Therefore, the purpose of this study was to investigate the clinical and histopathological outcomes after marginal bone resection in chronic long bone infection. We hypothesized that there is a regenerative bone healing potential after marginal bone resection that results in an acceptable clinical outcome and improved pathohistological bone healing parameters during treatment. MATERIALS AND METHODS Nine patients were treated for chronic bone infections in a two-stage manner with marginal bone resection of the infected area and the placement of an antibiotic-loaded polymethyl methacrylate (PMMA) spacer at stage one followed by bone reconstruction at stage two combined with systemic antibiotic therapy. Comparable bone samples were harvested at the border region between vital and necrotic bone area during stage one and the identical location during stage two. Control bone samples were harvested from five healthy patients without bone infection. Clinical outcome in terms of infection eradication and bone consolidation were assessed. The phenotypic changes of osteocyte and morphological changes of lacunar-canalicular network were investigated by histological and immunohistochemical staining between the two observation periods. Furthermore, expression levels of major bone formation and resorption markers were investigated by immunohistochemical and tartrate-resistant acid phosphatase (TRAP) staining. RESULTS The clinical results with a follow-up of 12.9 months showed that eight of nine patients (88.9%) achieved bone consolidation after a planned two-stage procedure of marginal resection of necrotic bone and consecutive reconstruction. In four of the nine patients (44.4%), additional marginal debridements after stage two had to be performed. After marginal resection at stage one, the improved bone formation ability at stage two was demonstrated by significantly lower percentage of empty lacunae, significantly more mature osteocytes and higher BMP-2 positive cell density, whereas decreased resorption was indicated by significantly lower osteoclast density and RANKL/OPG ratio. In patients requiring additional debridement compared to patients without additional debridements, a significantly higher percentage of empty lacunae was found at stage one. CONCLUSION Marginal bone resection combined with local and systemic antibiotic therapy is a feasible treatment option to avoid large bone defects as bone from the marginal resection area seems to have good regenerative potential. Despite a high revision rate of 44.4%, this technique avoids large bone resection and revisions can be done by further marginal debridements.
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Affiliation(s)
- Gongteng Wang
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg 93053, Germany
| | - Francisca I Alagboso
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg 93053, Germany
| | - Nike Walter
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg 93053, Germany; Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg 93053, Germany
| | - Susanne Baertl
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg 93053, Germany; Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg 93053, Germany
| | | | - Denitsa Docheva
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg 93053, Germany; Department of Musculoskeletal Tissue Regeneration, Orthopaedic Hospital König-Ludwig-Haus, University of Wuerzburg, Germany
| | - Markus Rupp
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg 93053, Germany; Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg 93053, Germany.
| | - Volker Alt
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg 93053, Germany; Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg 93053, Germany.
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Wang H, Cao X, Guo J, Yang X, Sun X, Fu Z, Qin A, Wu Y, Zhao J. BNTA alleviates inflammatory osteolysis by the SOD mediated anti-oxidation and anti-inflammation effect on inhibiting osteoclastogenesis. Front Pharmacol 2022; 13:939929. [PMID: 36249770 PMCID: PMC9559729 DOI: 10.3389/fphar.2022.939929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 09/09/2022] [Indexed: 11/15/2022] Open
Abstract
Abnormal activation and overproliferation of osteoclast in inflammatory bone diseases lead to osteolysis and bone mass loss. Although current pharmacological treatments have made extensive advances, limitations still exist. N-[2-bromo-4-(phenylsulfonyl)-3-thienyl]-2-chlorobenzamide (BNTA) is an artificially synthesized molecule compound that has antioxidant and anti-inflammatory properties. In this study, we presented that BNTA can suppress intracellular ROS levels through increasing ROS scavenging enzymes SOD1 and SOD2, subsequently attenuating the MARK signaling pathway and the transcription of NFATc1, leading to the inhibition of osteoclast formation and osteolytic resorption. Moreover, the results also showed an obvious restrained effect of BNTA on RANKL-stimulated proinflammatory cytokines, which indirectly mediated osteoclastogenesis. In line with the in vitro results, BNTA protected LPS-induced severe bone loss in vivo by enhancing scavenging enzymes, reducing proinflammatory cytokines, and decreasing osteoclast formation. Taken together, all of the results demonstrate that BNTA effectively represses oxidation, regulates inflammatory activity, and inhibits osteolytic bone resorption, and it may be a potential and exploitable drug to prevent inflammatory osteolytic bone diseases.
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Affiliation(s)
| | | | | | | | | | | | | | - Yujie Wu
- *Correspondence: Yujie Wu, ; Jie Zhao,
| | - Jie Zhao
- *Correspondence: Yujie Wu, ; Jie Zhao,
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35
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Ford CA, Hurford IM, Fulbright LE, Curry JM, Peek CT, Spoonmore TJ, Cruz Victorio V, Johnson JR, Peck SH, Cassat JE. Loss of Vhl alters trabecular bone loss during S. aureus osteomyelitis in a cell-specific manner. Front Cell Infect Microbiol 2022; 12:985467. [PMID: 36204648 PMCID: PMC9530664 DOI: 10.3389/fcimb.2022.985467] [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] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 08/29/2022] [Indexed: 01/07/2023] Open
Abstract
Osteomyelitis, or bone infection, is a major complication of accidental trauma or surgical procedures involving the musculoskeletal system. Staphylococcus aureus is the most frequently isolated pathogen in osteomyelitis and triggers significant bone loss. Hypoxia-inducible factor (HIF) signaling has been implicated in antibacterial immune responses as well as bone development and repair. In this study, the impact of bone cell HIF signaling on antibacterial responses and pathologic changes in bone architecture was explored using genetic models with knockout of either Hif1a or a negative regulator of HIF-1α, Vhl. Deletion of Hif1a in osteoblast-lineage cells via Osx-Cre (Hif1aΔOB ) had no impact on bacterial clearance or pathologic changes in bone architecture in a model of post-traumatic osteomyelitis. Knockout of Vhl in osteoblast-lineage cells via Osx-Cre (VhlΔOB ) caused expected increases in trabecular bone volume per total volume (BV/TV) at baseline and, intriguingly, did not exhibit an infection-mediated decline in trabecular BV/TV, unlike control mice. Despite this phenotype, bacterial burdens were not affected by loss of Vhl. In vitro studies demonstrated that transcriptional regulation of the osteoclastogenic cytokine receptor activator of NF-κB ligand (RANKL) and its inhibitor osteoprotegerin (OPG) is altered in osteoblast-lineage cells with knockout of Vhl. After observing no impact on bacterial clearance with osteoblast-lineage conditional knockouts, a LysM-Cre model was used to generate Hif1aΔMyeloid and VhlΔMyeloid mouse models to explore the impact of myeloid cell HIF signaling. In both Hif1aΔMyeloid and VhlΔMyeloid models, bacterial clearance was not impacted. Moreover, minimal impacts on bone architecture were observed. Thus, skeletal HIF signaling was not found to impact bacterial clearance in our mouse model of post-traumatic osteomyelitis, but Vhl deletion in the osteoblast lineage was found to limit infection-mediated trabecular bone loss, possibly via altered regulation of RANKL-OPG gene transcription.
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Affiliation(s)
- Caleb A. Ford
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, United States
| | - Ian M. Hurford
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Laura E. Fulbright
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Jacob M. Curry
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Christopher T. Peek
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Thomas J. Spoonmore
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, United States
| | - Virginia Cruz Victorio
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Joshua R. Johnson
- Vanderbilt Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN, United States
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Sun H. Peck
- Vanderbilt Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN, United States
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - James E. Cassat
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, United States
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Vanderbilt University Medical Center, Nashville, TN, United States
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, United States
- Vanderbilt Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN, United States
- Vanderbilt Institute for Infection, Immunology, and Inflammation (VI4), Vanderbilt University Medical Center, Nashville, TN, United States
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36
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Wu YL, Zhang CH, Teng Y, Pan Y, Liu NC, Liu PX, Zhu X, Su XL, Lin J. Propionate and butyrate attenuate macrophage pyroptosis and osteoclastogenesis induced by CoCrMo alloy particles. Mil Med Res 2022; 9:46. [PMID: 35996168 PMCID: PMC9396885 DOI: 10.1186/s40779-022-00404-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 07/21/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Wear particles-induced osteolysis is a major long-term complication after total joint arthroplasty. Up to now, there is no effective treatment for wear particles-induced osteolysis except for the revision surgery, which is a heavy psychological and economic burden to patients. A metabolite of gut microbiota, short chain fatty acids (SCFAs), has been reported to be beneficial for many chronic inflammatory diseases. This study aimed to investigate the therapeutic effect of SCFAs on osteolysis. METHODS A model of inflammatory osteolysis was established by applying CoCrMo alloy particles to mouse calvarium. After two weeks of intervention, the anti-inflammatory effects of SCFAs on wear particle-induced osteolysis were evaluated by Micro-CT analysis and immunohistochemistry staining. In vitro study, lipopolysaccharide (LPS) primed bone marrow-derived macrophages (BMDMs) and Tohoku Hospital Pediatrics-1 (THP-1) macrophages were stimulated with CoCrMo particles to activate inflammasome in the presence of acetate (C2), propionate (C3), and butyrate (C4). Western blotting, Enzyme-linked immunosorbent assay, and immunofluorescence were used to detect the activation of NLRP3 inflammasome. The effects of SCFAs on osteoclasts were evaluate by qRT-PCR, Western blotting, immunofluorescence, and tartrate-resistant acid phosphatase (TRAP) staining. Additionally, histone deacetylase (HDAC) inhibitors, agonists of GPR41, GPR43, and GPR109A were applied to confirm the underlying mechanism of SCFAs on the inflammasome activation of macrophages and osteoclastogenesis. RESULTS C3 and C4 but not C2 could alleviate wear particles-induced osteolysis with fewer bone erosion pits (P < 0.001), higher level of bone volume to tissue volume (BV/TV, P < 0.001), bone mineral density (BMD, P < 0.001), and a lower total porosity (P < 0.001). C3 and C4 prevented CoCrMo alloy particles-induced ASC speck formation and nucleation-induced oligomerization, suppressing the cleavage of caspase-1 (P < 0.05) and IL-1β (P < 0.05) stimulated by CoCrMo alloy particles. C3 and C4 also inhibited the generation of Gasdermin D-N-terminal fragment (GSDMD-NT) to regulate pyroptosis. Besides, C3 and C4 have a negative impact on osteoclast differentiation (P < 0.05) and its function (P < 0.05), affecting the podosome arrangement and morphologically normal podosome belts formation. CONCLUSION Our work showed that C3 and C4 are qualified candidates for the treatment of wear particle-induced osteolysis.
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Affiliation(s)
- Yang-Lin Wu
- Department of Orthopaedics, Suzhou Dushu Lake Hospital, Dushu Lake Hospital Affiliated to Soochow University, Medical Centre of Soochow University, Suzhou, 215001, Jiangsu, China.,Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, Jiangsu, China
| | - Chen-Hui Zhang
- Department of Orthopaedics, Suzhou Dushu Lake Hospital, Dushu Lake Hospital Affiliated to Soochow University, Medical Centre of Soochow University, Suzhou, 215001, Jiangsu, China
| | - Yun Teng
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, Jiangsu, China
| | - Ying Pan
- Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Nai-Cheng Liu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, Jiangsu, China
| | - Pei-Xin Liu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, Jiangsu, China
| | - Xu Zhu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, Jiangsu, China
| | - Xin-Lin Su
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, Jiangsu, China
| | - Jun Lin
- Department of Orthopaedics, Suzhou Dushu Lake Hospital, Dushu Lake Hospital Affiliated to Soochow University, Medical Centre of Soochow University, Suzhou, 215001, Jiangsu, China.
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37
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Sponseller BT, Wong DM, Ruby R, Ware WA, Wilson S, Haynes JS. Systemic calcinosis in a Quarter Horse gelding homozygous for a myosin heavy chain 1 mutation. J Vet Intern Med 2022; 36:1543-1549. [PMID: 35801821 PMCID: PMC9308413 DOI: 10.1111/jvim.16481] [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: 01/06/2022] [Accepted: 06/16/2022] [Indexed: 12/02/2022] Open
Abstract
Case Description A 9‐year‐old Quarter Horse gelding was presented for lethargy, decreased appetite, polyuria and polydipsia (PU/PD), and severe muscle wasting suggestive of immune‐mediated myositis. Clinical Findings The horse displayed lethargy, fever, tachyarrhythmia, inappetence, PU/PD, and severe epaxial and gluteal muscle wasting. Clinicopathologic findings were consistent with previously reported cases of systemic calcinosis in horses, including increased muscle enzyme activity, hyperphosphatemia, increased calcium‐phosphorus product, hypoproteinemia, and an inflammatory leukogram. A diagnosis of systemic calcinosis was established by histopathologic evaluation of biopsy specimens from skeletal muscle, lung, and kidney. Treatment and Outcome Symptomatic treatment was complemented by IV treatment with sodium thiosulfate to reverse calcium‐phosphate precipitation in soft tissue and PO aluminum hydroxide to decrease intestinal phosphorus absorption and serum phosphorus concentration. Clinical Relevance This is the first report in the veterinary literature of an antemortem diagnosis of systemic calcinosis in the horse that was successfully treated and had favorable long‐term outcome.
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Affiliation(s)
- Beatrice T Sponseller
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA
| | - David M Wong
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA
| | - Rebecca Ruby
- Veterinary Diagnostic Laboratory, College of Agriculture, Food and Environment, University of Kentucky, Lexington, Kentucky, USA
| | - Wendy A Ware
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA
| | - Scott Wilson
- Mid-Atlantic Equine Dentistry, Myrtle Beach, South Carolina, USA
| | - Joseph S Haynes
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA
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38
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Pei W, Deng J, Wang P, Wang X, Zheng L, Zhang Y, Huang C. Sustainable lignin and lignin-derived compounds as potential therapeutic agents for degenerative orthopaedic diseases: A systemic review. Int J Biol Macromol 2022; 212:547-560. [PMID: 35643155 DOI: 10.1016/j.ijbiomac.2022.05.152] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/13/2022] [Accepted: 05/22/2022] [Indexed: 12/12/2022]
Abstract
Lignin, the most abundant natural and sustainable phenolic compound in biomass, has exhibited medicinal values due to its biological activities decided by physicochemical properties. Recently, the lignin and its derivatives (such as lignosulfonates and lignosulfonate) have been proven efficient in regulating cellular process and the extracellular microenvironment, which has been regarded as the key factor in disease progression. In orthopaedic diseases, especially the degenerative diseases represented by osteoarthritis and osteoporosis, excessive activated inflammation has been proven as a key stage in the pathological process. Due to the excellent biocompatibility, antibacterial and antioxidative activities of lignin and its derivatives, they have been applied to stimulate cells and restore the uncoupling bone remodeling in the degenerative orthopaedic diseases. However, there is a lack of a systemic review to state the current research actuality of lignin and lignin-derived compounds in treating degenerative orthopaedic diseases. Herein, we summarized the current application of lignin and lignin-derived compounds in orthopaedic diseases and proposed their possible therapeutic mechanism in treating degenerative orthopaedic diseases. It is hoped this work could guide the future preparation of lignin/lignin-derived drugs and implants as available therapeutic strategies for clinically degenerative orthopaedic diseases.
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Affiliation(s)
- Wenhui Pei
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Junping Deng
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Peng Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Xucai Wang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Liming Zheng
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| | - Yangheng Zhang
- Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, 210008, China.
| | - Caoxing Huang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China.
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39
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Das BK, Wang L, Fujiwara T, Zhou J, Aykin-Burns N, Krager KJ, Lan R, Mackintosh SG, Edmondson R, Jennings ML, Wang X, Feng JQ, Barrientos T, Gogoi J, Kannan A, Gao L, Xing W, Mohan S, Zhao H. Transferrin receptor 1-mediated iron uptake regulates bone mass in mice via osteoclast mitochondria and cytoskeleton. eLife 2022; 11:73539. [PMID: 35758636 PMCID: PMC9352353 DOI: 10.7554/elife.73539] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 06/25/2022] [Indexed: 11/13/2022] Open
Abstract
Increased intracellular iron spurs mitochondrial biogenesis and respiration to satisfy high-energy demand during osteoclast differentiation and bone-resorbing activities. Transferrin receptor 1 (Tfr1) mediates cellular iron uptake through endocytosis of iron-loaded transferrin, and its expression increases during osteoclast differentiation. Nonetheless, the precise functions of Tfr1 and Tfr1-mediated iron uptake in osteoclast biology and skeletal homeostasis remain incompletely understood. To investigate the role of Tfr1 in osteoclast lineage cells in vivo and in vitro, we crossed Tfrc (encoding Tfr1)-floxed mice with Lyz2 (LysM)-Cre and Cathepsin K (Ctsk)-Cre mice to generate Tfrc conditional knockout mice in myeloid osteoclast precursors (Tfr1ΔLysM) or differentiated osteoclasts (Tfr1ΔCtsk), respectively. Skeletal phenotyping by µCT and histology unveiled a significant increase in trabecular bone mass with normal osteoclast number in long bones of 10-week-old young and 6-month-old adult female but not male Tfr1ΔLysM mice. Although high trabecular bone volume in long bones was observed in both male and female Tfr1ΔCtsk mice, this phenotype was more pronounced in female knockout mice. Consistent with this gender-dependent phenomena, estrogen deficiency induced by ovariectomy decreased trabecular bone mass in Tfr1ΔLysM mice. Mechanistically, disruption of Tfr1 expression attenuated mitochondrial metabolism and cytoskeletal organization in mature osteoclasts in vitro by attenuating mitochondrial respiration and activation of the Src-Rac1-WAVE regulatory complex axis, respectively, leading to decreased bone resorption with little impact on osteoclast differentiation. These results indicate that Tfr1-mediated iron uptake is specifically required for osteoclast function and is indispensable for bone remodeling in a gender-dependent manner.
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Affiliation(s)
- Bhaba K Das
- Long Beach VA Healthcare System, Southern California Institute for Research and Education, Long Beach, United States
| | - Lei Wang
- Department of Orthopedics, Anhui Medical University, Hefei, China
| | - Toshifumi Fujiwara
- Department of Orthopedic Surgery, Kyushu University Hospital, Fukuoka, Japan
| | - Jian Zhou
- Department of Orthopedics, Anhui Medical University, HeFei, China
| | - Nukhet Aykin-Burns
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, United States
| | - Kimberly J Krager
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, United States
| | - Renny Lan
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, United States
| | - Samuel G Mackintosh
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, United States
| | - Ricky Edmondson
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, United States
| | - Michael L Jennings
- Department of Physiology and Cell Biology, University of Arkansas for Medical Sciences, Little Rock, United States
| | - Xiaofang Wang
- Department of Biomedical Sciences, Texas A&M University, Dallas, United States
| | - Jian Q Feng
- Department of Biomedical Sciences, Texas A&M University, Dallas, United States
| | | | - Jyoti Gogoi
- Long Beach VA Healthcare System, Southern California Institute for Research and Education, Long Beach, United States
| | - Aarthi Kannan
- Long Beach VA Healthcare System, Southern California Institute for Research and Education, Long Beach, United States
| | - Ling Gao
- Long Beach VA Healthcare System, Southern California Institute for Research and Education, Long Beach, United States
| | - Weirong Xing
- Musculoskeletal Disease Center, VA Loma Linda Healthcare System, Loma Linda, United States
| | - Subburaman Mohan
- Musculoskeletal Disease Center, VA Loma Linda Healthcare System, Loma Linda, United States
| | - Haibo Zhao
- Long Beach VA Healthcare System, Southern California Institute for Research and Education, Long Beach, United States
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40
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Shen H, Jiang W, Yu Y, Feng Y, Zhang T, Liu Y, Guo L, Zhou N, Huang X. microRNA-146a mediates distraction osteogenesis via bone mesenchymal stem cell inflammatory response. Acta Histochem 2022; 124:151913. [PMID: 35759812 DOI: 10.1016/j.acthis.2022.151913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 05/09/2022] [Accepted: 05/24/2022] [Indexed: 11/20/2022]
Abstract
Distraction osteogenesis (DO) is a widely used surgical technique to repair bone defects, partly owing to its high efficiency in inducing osteogenesis; however, the process of osteogenesis is complex, and the precise mechanism is still unclear. Among the factors identified for an effective DO procedure, well-controlled inflammation is essential. We aimed to explore how microRNA(miR)-146a, a negative regulator of inflammation, influences osteogenesis in DO. First, we established canine right mandibular DO and bone fracture models to evaluate the expression level of miR-146a in response to these procedures. Second, bone marrow mesenchymal stem cells (BMSCs) were isolated from healthy puppies and cultured with lipopolysaccharide (LPS) to observe how inflammation affects osteogenesis. Finally, the osteogenesis activity of BMSCs transfected with lentiviral vector either overexpressing (miR-146a-up) or inhibited for miR-146a expression was evaluated. miR-146a-up-transfected BMSCs were injected locally into the distraction gaps of the DO model canines. On days 42 and 56 post-surgery, the bone volume/tissue volume and bone mineral density values were evaluated via using micro-computed tomography, and newly formed tissues were harvested and evaluated via histological staining. The expression of miR-146a in both the DO canine model and LPS-stimulated BMSCs increased. Overexpression of miR-146a enhanced cell proliferation, migration, and osteogenic differentiation. Additionally, the newly formed callus was improved in canine mandibles injected with miR-146a-up-transfected BMSCs. In summary, miR-146a regulates mandibular DO by improving osteogenesis, and can serve as a potential target to shorten the therapy period of DO.
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Affiliation(s)
- Huijuan Shen
- Departement of Oral and Maxillofacial Surgery, College of Stomatology, Guangxi Medical University, Nanning 530021, People's Republic of China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Guangxi Clinical Research Center for Craniofacial Deformity, Nanning 530021, People's Republic of China
| | - Weidong Jiang
- Departement of Oral and Maxillofacial Surgery, College of Stomatology, Guangxi Medical University, Nanning 530021, People's Republic of China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Guangxi Clinical Research Center for Craniofacial Deformity, Nanning 530021, People's Republic of China
| | - Yangyang Yu
- Departement of Oral and Maxillofacial Surgery, College of Stomatology, Guangxi Medical University, Nanning 530021, People's Republic of China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Guangxi Clinical Research Center for Craniofacial Deformity, Nanning 530021, People's Republic of China
| | - Yuan Feng
- Departement of Oral and Maxillofacial Surgery, College of Stomatology, Guangxi Medical University, Nanning 530021, People's Republic of China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Guangxi Clinical Research Center for Craniofacial Deformity, Nanning 530021, People's Republic of China
| | - Tao Zhang
- Departement of Oral and Maxillofacial Surgery, College of Stomatology, Guangxi Medical University, Nanning 530021, People's Republic of China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Guangxi Clinical Research Center for Craniofacial Deformity, Nanning 530021, People's Republic of China
| | - Yan Liu
- Departement of Oral and Maxillofacial Surgery, College of Stomatology, Guangxi Medical University, Nanning 530021, People's Republic of China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Guangxi Clinical Research Center for Craniofacial Deformity, Nanning 530021, People's Republic of China
| | - Lina Guo
- Departement of Oral and Maxillofacial Surgery, College of Stomatology, Guangxi Medical University, Nanning 530021, People's Republic of China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Guangxi Clinical Research Center for Craniofacial Deformity, Nanning 530021, People's Republic of China
| | - Nuo Zhou
- Departement of Oral and Maxillofacial Surgery, College of Stomatology, Guangxi Medical University, Nanning 530021, People's Republic of China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Guangxi Clinical Research Center for Craniofacial Deformity, Nanning 530021, People's Republic of China.
| | - Xuanping Huang
- Departement of Oral and Maxillofacial Surgery, College of Stomatology, Guangxi Medical University, Nanning 530021, People's Republic of China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Guangxi Clinical Research Center for Craniofacial Deformity, Nanning 530021, People's Republic of China.
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Doi K, Murata K, Ito S, Suzuki A, Terao C, Ishie S, Umemoto A, Murotani Y, Nishitani K, Yoshitomi H, Fujii T, Watanabe R, Hashimoto M, Murakami K, Tanaka M, Ito H, Park-Min KH, Ivashkiv LB, Morinobu A, Matsuda S. Role of Lysine-Specific Demethylase 1 in Metabolically Integrating Osteoclast Differentiation and Inflammatory Bone Resorption Through Hypoxia-Inducible Factor 1α and E2F1. Arthritis Rheumatol 2022; 74:948-960. [PMID: 35077015 PMCID: PMC9156537 DOI: 10.1002/art.42074] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 01/07/2022] [Accepted: 01/21/2022] [Indexed: 10/09/2023]
Abstract
OBJECTIVE Hypoxia occurs in tumors, infections, and sites of inflammation, such as in the affected joints of patients with rheumatoid arthritis (RA). It alleviates inflammatory responses and increases bone resorption in inflammatory arthritis by enhancing osteoclastogenesis. The mechanism by which the hypoxia response is linked to osteoclastogenesis and inflammatory bone resorption is unclear. This study was undertaken to evaluate whether the protein lysine-specific demethylase 1 (LSD1) metabolically integrates inflammatory osteoclastogenesis and bone resorption in a state of inflammatory arthritis. METHODS LSD1-specific inhibitors and gene silencing with small interfering RNAs were used to inhibit the expression of LSD1 in human osteoclast precursor cells derived from CD14-positive monocytes, with subsequent assessment by RNA-sequencing analysis. In experimental mouse models of arthritis, inflammatory osteolysis, or osteoporosis, features of accelerated bone loss and inflammatory osteolysis were analyzed. Furthermore, in blood samples from patients with RA, cis-acting expression quantitative trait loci (cis-eQTL) were analyzed for association with the expression of hypoxia-inducible factor 1α (HIF-1α), and associations between HIF-1α allelic variants and extent of bone erosion were evaluated. RESULTS In human osteoclast precursor cells, RANKL induced the expression of LSD1 in a mechanistic target of rapamycin-dependent manner. Expression of LSD1 was higher in synovium from RA patients than in synovium from osteoarthritis patients. Inhibition of LSD1 in human osteoclast precursors suppressed osteoclast differentiation. Results of transcriptome analysis identified several LSD1-mediated hypoxia and cell-cycle pathways as key genetic pathways involved in human osteoclastogenesis. Furthermore, HIF-1α protein, which is rapidly degraded by the proteasome in a normoxic environment, was found to be expressed in RANKL-stimulated osteoclast precursor cells. Induction of LSD1 by RANKL stabilized the expression of HIF-1α protein, thereby promoting glycolysis, in conjunction with up-regulation of the transcription factor E2F1. Analyses of cis-eQTL revealed that higher HIF-1α expression was associated with increased bone erosion in patients with RA. Inhibition of LSD1 decreased pathologic bone resorption in mice, both in models of accelerated osteoporosis and models of arthritis and inflammatory osteolysis. CONCLUSION LSD1 metabolically regulates osteoclastogenesis in an energy-demanding inflammatory environment. These findings provide potential new therapeutic strategies targeting osteoclasts in the management of inflammatory arthritis, including in patients with RA.
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Affiliation(s)
- Kohei Doi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
| | - Koichi Murata
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
- Department of Advanced Medicine for Rheumatic Diseases, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
- Arthritis and Tissue Degeneration Program and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, 10021, USA
| | - Shuji Ito
- Laboratory for Statistical and Translational Genetics, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
- Department of Orthopedic Surgery, Shimane University Faculty of Medicine, Izumo, Shimane 693-8501, Japan
| | - Akari Suzuki
- Laboratory for Autoimmune Diseases, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Chikashi Terao
- Laboratory for Statistical and Translational Genetics, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
- Clinical Research Center, Shizuoka General Hospital, Shizuoka, 420-8527, Japan
- The Department of Applied Genetics, The School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan
| | - Shinichiro Ishie
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
| | - Akio Umemoto
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
| | - Yoshiki Murotani
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
| | - Kohei Nishitani
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
| | - Hiroyuki Yoshitomi
- Department of Immunology, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8501, Japan
| | - Takayuki Fujii
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
- Department of Advanced Medicine for Rheumatic Diseases, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
| | - Ryu Watanabe
- Department of Advanced Medicine for Rheumatic Diseases, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
| | - Motomu Hashimoto
- Department of Advanced Medicine for Rheumatic Diseases, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
| | - Kosaku Murakami
- Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
| | - Masao Tanaka
- Department of Advanced Medicine for Rheumatic Diseases, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
| | - Hiromu Ito
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
- Department of Advanced Medicine for Rheumatic Diseases, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
| | - Kyung-Hyun Park-Min
- Arthritis and Tissue Degeneration Program and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, 10021, USA
| | - Lionel B. Ivashkiv
- Arthritis and Tissue Degeneration Program and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, 10021, USA
| | - Akio Morinobu
- Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, 606-8507, Japan
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Neto E, Monteiro AC, Leite Pereira C, Simões M, Conde JP, Chu V, Sarmento B, Lamghari M. Micropathological Chip Modeling the Neurovascular Unit Response to Inflammatory Bone Condition. Adv Healthc Mater 2022; 11:e2102305. [PMID: 35158409 DOI: 10.1002/adhm.202102305] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 01/12/2022] [Indexed: 12/17/2022]
Abstract
Organ-on-a-chip in vitro platforms accurately mimic complex microenvironments offering the ability to recapitulate and dissect mechanisms of physiological and pathological settings, revealing their major importance to develop new therapeutic targets. Bone diseases, such as osteoarthritis, are extremely complex, comprising of the action of inflammatory mediators leading to unbalanced bone homeostasis and de-regulation of sensory innervation and angiogenesis. Although there are models to mimic bone vascularization or innervation, in vitro platforms merging the complexity of bone, vasculature, innervation, and inflammation are missing. Therefore, in this study a microfluidic-based neuro-vascularized bone chip (NVB chip) is proposed to 1) model the mechanistic interactions between innervation and angiogenesis in the inflammatory bone niche, and 2) explore, as a screening tool, novel strategies targeting inflammatory diseases, using a nano-based drug delivery system. It is possible to set the design of the platform and achieve the optimized conditions to address the neurovascular network under inflammation. Moreover, this system is validated by delivering anti-inflammatory drug-loaded nanoparticles to counteract the neuronal growth associated with pain perception. This reliable in vitro tool will allow understanding the bone neurovascular system, enlightening novel mechanisms behind the inflammatory bone diseases, bone destruction, and pain opening new avenues for new therapies discovery.
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Affiliation(s)
- Estrela Neto
- i3S – Instituto de Investigação e Inovação em Saúde Universidade do Porto Rua Alfredo Allen, 208 Porto 4200‐135 Portugal
- INEB – Instituto Nacional de Engenharia Biomédica Universidade do Porto Rua Alfredo Allen, 208 Porto 4200‐135 Portugal
| | - Ana Carolina Monteiro
- i3S – Instituto de Investigação e Inovação em Saúde Universidade do Porto Rua Alfredo Allen, 208 Porto 4200‐135 Portugal
- INEB – Instituto Nacional de Engenharia Biomédica Universidade do Porto Rua Alfredo Allen, 208 Porto 4200‐135 Portugal
| | - Catarina Leite Pereira
- i3S – Instituto de Investigação e Inovação em Saúde Universidade do Porto Rua Alfredo Allen, 208 Porto 4200‐135 Portugal
- INEB – Instituto Nacional de Engenharia Biomédica Universidade do Porto Rua Alfredo Allen, 208 Porto 4200‐135 Portugal
| | - Miguel Simões
- i3S – Instituto de Investigação e Inovação em Saúde Universidade do Porto Rua Alfredo Allen, 208 Porto 4200‐135 Portugal
- INEB – Instituto Nacional de Engenharia Biomédica Universidade do Porto Rua Alfredo Allen, 208 Porto 4200‐135 Portugal
| | - João Pedro Conde
- Instituto de Engenharia de Sistemas e Computadores (INESC) Microsystems and Nanotechnologies Rua Alves Redol, 9 1000‐029 Lisboa Portugal
| | - Virginia Chu
- Instituto de Engenharia de Sistemas e Computadores (INESC) Microsystems and Nanotechnologies Rua Alves Redol, 9 1000‐029 Lisboa Portugal
| | - Bruno Sarmento
- i3S – Instituto de Investigação e Inovação em Saúde Universidade do Porto Rua Alfredo Allen, 208 Porto 4200‐135 Portugal
- INEB – Instituto Nacional de Engenharia Biomédica Universidade do Porto Rua Alfredo Allen, 208 Porto 4200‐135 Portugal
- CESPU Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde Rua Central da Gandra, 137 Gandra 4585‐116 Portugal
| | - Meriem Lamghari
- i3S – Instituto de Investigação e Inovação em Saúde Universidade do Porto Rua Alfredo Allen, 208 Porto 4200‐135 Portugal
- INEB – Instituto Nacional de Engenharia Biomédica Universidade do Porto Rua Alfredo Allen, 208 Porto 4200‐135 Portugal
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Tseng HW, Samuel SG, Schroder K, Lévesque JP, Alexander KA. Inflammasomes and the IL-1 Family in Bone Homeostasis and Disease. Curr Osteoporos Rep 2022; 20:170-185. [PMID: 35567665 PMCID: PMC9209354 DOI: 10.1007/s11914-022-00729-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/21/2022] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW Inflammasomes are multimeric protein structures with crucial roles in host responses against infections and injuries. The importance of inflammasome activation goes beyond host defense as a dysregulated inflammasome and subsequent secretion of IL-1 family members is believed to be involved in the pathogenesis of various diseases, some of which also produce skeletal manifestations. The purpose of this review is to summarize recent developments in the understanding of inflammasome regulation and IL-1 family members in bone physiology and pathology and current therapeutics will be discussed. RECENT FINDINGS Small animal models have been vital to help understand how the inflammasome regulates bone dynamics. Animal models with gain or loss of function in various inflammasome components or IL-1 family signaling have illustrated how these systems can impact numerous bone pathologies and have been utilized to test new inflammasome therapeutics. It is increasingly clear that a tightly regulated inflammasome is required not only for host defense but for skeletal homeostasis, as a dysregulated inflammasome is linked to diseases of pathological bone accrual and loss. Given the complexities of inflammasome activation and redundancies in IL-1 activation and secretion, targeting these pathways is at times challenging. Ongoing research into inflammasome-mediated mechanisms will allow the development of new therapeutics for inflammasome/IL-1 diseases.
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Affiliation(s)
- Hsu-Wen Tseng
- Mater Research Institute, Translational Research Institute, The University of Queensland, 37 Kent Street, Woolloongabba, QLD, Australia
| | - Selwin Gabriel Samuel
- Mater Research Institute, Translational Research Institute, The University of Queensland, 37 Kent Street, Woolloongabba, QLD, Australia
| | - Kate Schroder
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia
| | - Jean-Pierre Lévesque
- Mater Research Institute, Translational Research Institute, The University of Queensland, 37 Kent Street, Woolloongabba, QLD, Australia
| | - Kylie A Alexander
- Mater Research Institute, Translational Research Institute, The University of Queensland, 37 Kent Street, Woolloongabba, QLD, Australia.
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Massaccesi L, Galliera E, Pellegrini A, Banfi G, Corsi Romanelli MM. Osteomyelitis, Oxidative Stress and Related Biomarkers. Antioxidants (Basel) 2022; 11:antiox11061061. [PMID: 35739958 PMCID: PMC9220672 DOI: 10.3390/antiox11061061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 12/30/2022] Open
Abstract
Bone is a very dynamic tissue, subject to continuous renewal to maintain homeostasis through bone remodeling, a process promoted by two cell types: osteoblasts, of mesenchymal derivation, are responsible for the deposition of new material, and osteoclasts, which are hematopoietic cells, responsible for bone resorption. Osteomyelitis (OM) is an invasive infectious process, with several etiological agents, the most common being Staphylococcus aureus, affecting bone or bone marrow, and severely impairing bone homeostasis, resulting in osteolysis. One of the characteristic features of OM is a strong state of oxidative stress (OS) with severe consequences on the delicate balance between osteoblastogenesis and osteoclastogenesis. Here we describe this, analyzing the effects of OS in bone remodeling and discussing the need for new, easy-to-measure and widely available OS biomarkers that will provide valid support in the management of the disease.
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Affiliation(s)
- Luca Massaccesi
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy; (E.G.); (M.M.C.R.)
- Correspondence: ; Tel.: +39-0250316027
| | - Emanuela Galliera
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy; (E.G.); (M.M.C.R.)
- IRCCS Galeazzi Orthopaedic Institute, 20161 Milan, Italy;
| | - Antonio Pellegrini
- Centre for Reconstructive Surgery and Osteoarticular Infections, IRCCS Galeazzi Orthopaedic Institute, 20161 Milan, Italy;
| | - Giuseppe Banfi
- IRCCS Galeazzi Orthopaedic Institute, 20161 Milan, Italy;
| | - Massimiliano Marco Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy; (E.G.); (M.M.C.R.)
- Service of Laboratory Medicine1-Clinical Pathology, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy
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Inflammasome Activation in the Hip Synovium of Rapidly Destructive Coxopathy Patients and Its Relationship with the Development of Synovitis and Bone Loss. THE AMERICAN JOURNAL OF PATHOLOGY 2022; 192:794-804. [PMID: 35292262 DOI: 10.1016/j.ajpath.2022.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 01/20/2022] [Accepted: 02/11/2022] [Indexed: 10/18/2022]
Abstract
Rapidly destructive coxopathy (RDC), a rare disease of unknown etiology, is characterized by the rapid destruction of the hip joint. In the current study, the potential involvement of inflammasome signaling in the progression of RDC was investigated. Histopathologic changes and the gene expression of inflammasome activation markers in hip synovial tissues collected from patients with RDC were evaluated and compared with those of osteoarthritis and osteonecrosis of the femoral head patients. The synovial tissues of patients with RDC exhibited remarkable increases in the number of infiltrated macrophages and osteoclasts, and the expression of inflammasome activation markers was also increased compared with those of osteoarthritis and osteonecrosis of the femoral head patients. To further understand the histopathologic changes in the joint, a co-culture model of macrophages and synoviocytes that mimicked the joint environment was developed. Remarkably, the gene expression levels of NLRP3, GSDMD, IL1B, TNFA, ADMTS4, ADMTS5, MMP3, MMP9, and RANKL were significantly elevated in the synoviocytes that were co-cultured with activated THP-1 macrophages, suggesting the association between synovitis and inflammasome activation. Consistent with these findings, osteoclast precursor cells that were co-cultured with stimulated synoviocytes exhibited an increased number of tartrate-resistant acid phosphatase-positive cells, compared with cells that were co-cultured with non-stimulated synoviocytes. These findings suggest that the activation of inflammasome signaling in the synovium results in an increase in local inflammation and osteoclastogenesis, thus leading to the rapid bone destruction in RDC.
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Meng X, Zhang W, Lyu Z, Long T, Wang Y. ZnO nanoparticles attenuate polymer-wear-particle induced inflammatory osteolysis by regulating the MEK-ERK-COX-2 axis. J Orthop Translat 2022; 34:1-10. [PMID: 35531425 PMCID: PMC9046564 DOI: 10.1016/j.jot.2022.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 03/30/2022] [Accepted: 04/03/2022] [Indexed: 11/25/2022] Open
Abstract
Background/Objectives Advanced thermoplastic materials, such as polyether-ether-ketone (PEEK) and highly cross-linked polyethylene (HXLPE), have been increasingly used as orthopaedic implant materials. Similar to other implants, PEEK-on-HXLPE prostheses produce debris from polymer wear that may activate the immune response, which can cause osteolysis, and ultimately implant failure. In this study, we examined whether the anti-inflammatory properties of zinc oxide nanoparticles (ZnO NPs) could attenuate polymer wear particle-induced inflammation. Methods RAW264.7 cells were cultured with PEEK or PE particles and gradient concentrations of ZnO NPs. Intracellular mRNA expression and protein levels of pro-inflammatory factors TNF-α, IL-1β, and IL-6 were detected. An air pouch mouse model was constructed to examine the inflammatory response and expression of pro-inflammatory factors in vivo. Furthermore, an osteolysis rat model was used to evaluate the activation of osteoclasts and destruction of bone tissue induced by polymer particles with or without ZnO NPs. Protein expression of the MEK-ERK-COX-2 pathway was also examined by western blotting to elucidate the mechanism underlying particle-induced anti-inflammatory effects. Results ZnO NPs (≤50 nm, 5 μg/mL) showed no obvious cytotoxicity and attenuated PEEK or PE particle-induced inflammation and inflammatory osteolysis by reducing MEK and ERK phosphorylation and decreasing COX-2 expression. Conclusion ZnO NPs (≤50 nm, 5 μg/mL) attenuated polymer wear particle-induced inflammation via regulation of the MEK-ERK-COX-2 axis. Further, ZnO NPs reduced bone tissue damage caused by particle-induced inflammatory osteolysis. The translational potential of this article Polymer wear particles can induce inflammation and osteolysis in the body after arthroplasty. ZnO NPs attenuated polymer particle-induced inflammation and inflammatory osteolysis. Topical use of ZnO NPs and blended ZnO NP/polymer composites may provide promising approaches for inhibiting polymer wear particle-induced inflammatory osteolysis, thus expanding the range of polymers used in joint prostheses.
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Li T, Hadigan C, Whitlock JM, Qin J, Kumar J, Kumar P, Catalfamo M. IL-27 Modulates the Cytokine Secretion in the T Cell-Osteoclast Crosstalk During HIV Infection. Front Immunol 2022; 13:818677. [PMID: 35479090 PMCID: PMC9037094 DOI: 10.3389/fimmu.2022.818677] [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] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
In People with HIV (PWH), chronic immune activation and systemic inflammation are associated with increased risk to develop comorbidities including bone loss. Numerous cells of the immune system, namely, T cells are involved in the regulation of the bone homeostasis and osteoclasts (OCs) activity. IL-27, a cytokine that belongs to the IL-12 family can regulate the secretion of pro- and anti-inflammatory cytokines by T cells, however its role in the setting of HIV is largely unknown. In the present study, we determined the impact of OCs in T cell secretion of cytokines and whether IL-27 can regulate this function. We found that the presence of OCs in the T cell cultures significantly enhanced secretion of IFNγ, TNFα, IL-17, RANKL, and IL-10 in both PWH and healthy controls. In PWH, IL-27 inhibited IL-17 secretion and downregulated surface expression of RANKL in CD4 T cells. All together these results suggest that in the context of HIV infection IL-27 may favor IFNγ and TNFα secretion at the sites of bone remodeling.
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Affiliation(s)
- Tong Li
- Department of Microbiology and Immunology, Georgetown University School of Medicine, Washington, DC, United States
| | - Colleen Hadigan
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Jarred M. Whitlock
- Section on Membrane Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, United States
| | - Jing Qin
- Biostatistics Research Branch, Division of Clinical Research (DCR), National Institutes of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, United States
| | - Jai Kumar
- Division of Infectious Diseases and Travel Medicine, Georgetown University School of Medicine, Washington, DC, United States
| | - Princy Kumar
- Division of Infectious Diseases and Travel Medicine, Georgetown University School of Medicine, Washington, DC, United States
| | - Marta Catalfamo
- Department of Microbiology and Immunology, Georgetown University School of Medicine, Washington, DC, United States
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Commensal gut bacterium critically regulates alveolar bone homeostasis. J Transl Med 2022; 102:363-375. [PMID: 34934182 PMCID: PMC8967765 DOI: 10.1038/s41374-021-00697-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 12/28/2022] Open
Abstract
The alveolar bone is a unique osseous tissue due to the presence of the teeth and the proximity of commensal oral microbes. Commensal microbe effects on alveolar bone homeostasis have been attributed to the oral microbiota, yet the impact of commensal gut microbes is unknown. Study purpose was to elucidate whether commensal gut microbes regulate osteoimmune mechanisms and skeletal homeostasis in alveolar bone. Male C57BL/6T germfree (GF) littermate mice were maintained as GF or monoassociated with segmented filamentous bacteria (SFB), a commensal gut bacterium. SFB has been shown to elicit broad immune response effects, including the induction of TH17/IL17A immunity, which impacts the development and homeostasis of host tissues. SFB colonized the gut, but not oral cavity, and increased IL17A levels in the ileum and serum. SFB had catabolic effects on alveolar bone and non-oral skeletal sites, which was attributed to enhanced osteoclastogenesis. The alveolar bone marrow of SFB vs. GF mice had increased dendritic cells, activated helper T-cells, TH1 cells, TH17 cells, and upregulated Tnf. Primary osteoblast cultures from SFB and GF mice were stimulated with vehicle-control, IL17A, or TNF to elucidate osteoblast-derived signaling factors contributing to the pro-osteoclastic phenotype in SFB mice. Treatment of RAW264.7 osteoclastic cells with supernatants from vehicle-stimulated SFB vs. GF osteoblasts recapitulated the osteoclast phenotype found in vivo. Supernatants from TNF-stimulated osteoblasts normalized RAW264.7 osteoclast endpoints across SFB and GF cultures, which was dependent on the induction of CXCL1 and CCL2. This report reveals that commensal gut microbes have the capacity to regulate osteoimmune processes in alveolar bone. Outcomes from this investigation challenge the current paradigm that alveolar bone health and homeostasis is strictly regulated by oral microbes.
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Cheng Y, Yu Y, Zhuang Q, Wang L, Zhan B, Du S, Liu Y, Huang J, Hao J, Zhu X. Bone erosion in inflammatory arthritis is attenuated by Trichinella spiralis through inhibiting M1 monocyte/macrophage polarization. iScience 2022; 25:103979. [PMID: 35281745 PMCID: PMC8914552 DOI: 10.1016/j.isci.2022.103979] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 01/19/2022] [Accepted: 02/18/2022] [Indexed: 12/23/2022] Open
Abstract
Helminths and helminth-derived products hold promise for treating joint bone erosion in rheumatoid arthritis (RA). However, the mechanisms of helminths ameliorating the osteoclastic bone destruction are incompletely understood. Here, we report that Trichinella spiralis infection or treatment with the excreted/secreted products of T. spiralis muscle larvae (MES) attenuated bone erosion and osteoclastogenesis in mice with collage-induced arthritis (CIA) through inhibiting M1 monocyte/macrophage polarization and the production of M1-related proinflammatory cytokines. In vitro, MES inhibited LPS-induced M1 macrophage activation while promoting IL-4-induced M2 macrophage polarization. Same effects of MES were also observed in monocytes derived from RA patients, wherein MES treatment suppressed LPS-induced M1 cytokine production. Moreover, MES treatment attenuated LPS and RANKL co-stimulated osteoclast differentiation from the RAW264.7 macrophages through inhibiting activation of the NF-κB rather than MAPK pathway. This study provides insight into the M1 subset as a potential target for helminths to alleviate osteoclastic bone destruction in RA.
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Affiliation(s)
- Yuli Cheng
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Yan Yu
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Qinghui Zhuang
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Lei Wang
- Beijing Institute of Tropical Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, PR China
| | - Bin Zhan
- Departments of Pediatrics and Molecular Virology and Microbiology, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Suqin Du
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Yiqi Liu
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Jingjing Huang
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Junfeng Hao
- Core Facility for Protein Research, Institute of Biophysics, Chinese Academy of Science, Beijing 100101, PR China
| | - Xinping Zhu
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, PR China
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Stress-Induced, Aseptic Osteolysis of the Mid-Tibia in a Revision Hinged Total Knee Arthroplasty Mimicking Infection. Arthroplast Today 2022; 14:116-120. [PMID: 35281549 PMCID: PMC8914092 DOI: 10.1016/j.artd.2022.01.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 01/20/2022] [Accepted: 01/22/2022] [Indexed: 11/22/2022] Open
Abstract
In this report, we present the case of an 80-year-old female with pain located over the tip of her cemented tibial stem in a revision hinge total knee arthroplasty with localized osteolysis that looked suspicious for infection. A thorough workup was negative for infection. We postulate that the osteolysis at the end of her tibial stem was initiated by a modulus of elasticity mismatch at the stem tip, which generated a focal area of increased sagittal bone bending and microparticle generation. She was treated with lesional exploration, debridement, synthetic bone grafting, and tibial plating to distribute stress loads away from the tibial stem tip. Histologic analysis identified no organisms or neoplasm. Her pain ultimately resolved, and the patient returned to her customary activities.
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