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Peng Y, Langermann S, Kothari P, Liu L, Zhao W, Hu Y, Chen Z, Moraes de Lima Perini M, Li J, Cao J, Guo XE, Chen L, Bauman WA, Qin W. Anti-Siglec-15 Antibody Prevents Marked Bone Loss after Acute Spinal Cord Injury-Induced Immobilization in Rats. JBMR Plus 2023; 7:e10825. [PMID: 38130761 PMCID: PMC10731123 DOI: 10.1002/jbm4.10825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/23/2023] [Accepted: 09/11/2023] [Indexed: 12/23/2023] Open
Abstract
Rapid and extensive sublesional bone loss after spinal cord injury (SCI) is a difficult medical problem that has been refractory to available interventions except the antiresorptive agent denosumab (DMAB). While DMAB has shown some efficacy in inhibiting bone loss, its concurrent inhibition of bone formation limits its use. Sialic acid-binding immunoglobulin-like lectin (Siglec)-15 is expressed on the cell surface of mature osteoclasts. Anti-Siglec-15 antibody (Ab) has been shown to inhibit osteoclast maturation and bone resorption while maintaining osteoblast activity, which is distinct from current antiresorptive agents that inhibit the activity of both osteoclasts and osteoblasts. The goal of the present study is to test a Siglec-15 Ab (NP159) as a new treatment option to prevent bone loss in an acute SCI model. To this end, 4-month-old male Wistar rats underwent complete spinal cord transection and were treated with either vehicle or NP159 at 20 mg/kg once every 2 weeks for 8 weeks. SCI results in significant decreases in bone mineral density (BMD, -18.7%), trabecular bone volume (-43.1%), trabecular connectivity (-59.7%), and bone stiffness (-76.3%) at the distal femur. Treatment with NP159 almost completely prevents the aforementioned deterioration of bone after SCI. Blood and histomorphometric analyses revealed that NP159 is able to greatly inhibit bone resorption while maintaining bone formation after acute SCI. In ex vivo cultures of bone marrow cells, NP159 reduces osteoclastogenesis while increasing osteoblastogenesis. In summary, treatment with NP159 almost fully prevents sublesional loss of BMD and metaphysis trabecular bone volume and preserves bone strength in a rat model of acute SCI. Because of its unique ability to reduce osteoclastogenesis and bone resorption while promoting osteoblastogenesis to maintain bone formation, Siglec-15 Ab may hold greater promise as a therapeutic agent, compared with the exclusively antiresorptive or anabolic agents that are currently used, in mitigating the striking bone loss that occurs after SCI or other conditions associated with severe immobilization. © 2023 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA.
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Affiliation(s)
- Yuanzhen Peng
- Spinal Cord Damage Research Center, James J. Peters Veteran Affairs Medical CenterBronxNew YorkUSA
| | | | | | | | - Wei Zhao
- Spinal Cord Damage Research Center, James J. Peters Veteran Affairs Medical CenterBronxNew YorkUSA
| | - Yizhong Hu
- Department of Biomedical EngineeringColumbia UniversityNew YorkNew YorkUSA
| | - Zihao Chen
- Department of BiotechnologyBrown UniversityProvidenceRhode IslandUSA
| | | | - Jiliang Li
- School of Science, Indiana University Purdue UniversityIndianapolisIndianaUSA
| | - Jay Cao
- USDA‐ARS Grand Forks Human Nutrition Research CenterGrand ForksNorth DakotaUSA
| | - X. Edward Guo
- Department of Biomedical EngineeringColumbia UniversityNew YorkNew YorkUSA
| | - Lieping Chen
- NextCure, IncBeltsvilleMarylandUSA
- Cancer Research, Immunobiology and Medicine, The Yale University School of MedicineNew HavenConnecticutUSA
| | - William A. Bauman
- Spinal Cord Damage Research Center, James J. Peters Veteran Affairs Medical CenterBronxNew YorkUSA
- Departments of MedicineRehabilitation and Human Performance, Icahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
- Rehabilitation and Human Performance, Icahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Weiping Qin
- Spinal Cord Damage Research Center, James J. Peters Veteran Affairs Medical CenterBronxNew YorkUSA
- Departments of MedicineRehabilitation and Human Performance, Icahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
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2
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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3
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Tao J, Srinivasan V, Yi X, Zhao Y, Zhang H, Lin X, Zhou X, Boyce BF, Villalta PW, Ebetino FH, Ho KK, Boeckman RK, Xing L. Bone-Targeted Bortezomib Inhibits Bortezomib-Resistant Multiple Myeloma in Mice by Providing Higher Levels of Bortezomib in Bone. J Bone Miner Res 2022; 37:629-642. [PMID: 34970782 PMCID: PMC9018514 DOI: 10.1002/jbmr.4496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/18/2021] [Accepted: 12/21/2021] [Indexed: 11/10/2022]
Abstract
Limited treatment options exist for cancer within the bone, as demonstrated by the inevitable, pernicious course of metastatic and blood cancers. The difficulty of eliminating bone-residing cancer, especially drug-resistant cancer, necessitates novel, alternative treatments to manipulate tumor cells and their microenvironment, with minimal off-target effects. To this end, bone-targeted conjugate (BP-Btz) was generated by linking bortezomib (Btz, an anticancer, bone-stimulatory drug) to a bisphosphonate (BP, a targeting ligand) through a cleavable linker that enables spatiotemporally controlled delivery of Btz to bone under acidic conditions for treating multiple myeloma (MM). Three conjugates with different linkers were developed and screened for best efficacy in mouse model of MM. Results demonstrated that the lead candidate BP-Btz with optimal linker could overcome Btz resistance, reduced tumor burden, bone destruction, or tumor metastasis more effectively than BP or free Btz without thrombocytopenia and neurotoxicity in mice bearing myeloma. Furthermore, pharmacokinetic and pharmacodynamic studies showed that BP-Btz bound to bone matrix, released Btz in acidic conditions, and had a higher local concentration and longer half-life than Btz in bone. Our findings suggest the potential of bone-targeted Btz conjugate as an efficacious Btz-resistant MM treatment mechanism. © 2021 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Jianguo Tao
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Venkat Srinivasan
- Department of Chemistry, University of Rochester, Rochester, NY, USA
| | - Xiangjiao Yi
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Yingchun Zhao
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Hengwei Zhang
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Xi Lin
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Xichao Zhou
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Brendan F Boyce
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA.,Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Peter W Villalta
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Frank H Ebetino
- Department of Chemistry, University of Rochester, Rochester, NY, USA.,BioVinc, Pasadena, CA, USA
| | - Koc Kan Ho
- Ionova Life Science Co., Ltd, Shenzhen, China
| | - Robert K Boeckman
- Department of Chemistry, University of Rochester, Rochester, NY, USA
| | - Lianping Xing
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA.,Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
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Kim HJ, Ryu KY, Kim YG, Kim MO, Lee JH, Song MK, Youn YJ, Pokhrel NK, Kim SH, Kim JY, Jung HJ, Kim WS, Hong CW, Kim HH, Lee Y. Myeloid-Specific PTP1B Deficiency Attenuates Inflammation-Induced and Ovariectomy-Induced Bone Loss in Mice by Inhibiting Osteoclastogenesis. J Bone Miner Res 2022; 37:505-514. [PMID: 34812548 DOI: 10.1002/jbmr.4478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 11/09/2021] [Accepted: 11/17/2021] [Indexed: 11/11/2022]
Abstract
The differentiation and activity of bone-resorbing osteoclasts are tightly regulated to maintain the homeostasis of healthy bones. In this study, the role of protein tyrosine phosphatase 1B (PTP1B) during osteoclastogenesis was studied in myeloid-specific Ptpn1-deficient (conditional knockout [cKO]) mice. The mRNA and protein expression of PTP1B increased during the formation of mature osteoclasts from mouse bone macrophages on stimulation with macrophage-colony stimulating factor (M-CSF) and receptor activator of nuclear factor κB ligand (RANKL). The Ptpn1 cKO mice exhibited increased femoral trabecular bone volume with a decreased number and activity of osteoclasts compared with control mice. The in vitro culture of osteoclast precursors corroborated the inhibition of osteoclastogenesis in cKO cells compared with control, with concomitantly decreased RANKL-dependent proliferation, lower osteoclast marker gene expression, reduced nuclear expression of nuclear factor of activated T cells cytoplasmic 1 (NFATc1), diminished intracellular Ca2+ oscillations, and increased phosphorylation of proto-oncogene tyrosine-protein kinase Src on inhibitory tyrosine residue. In a ligature-induced periodontitis model, Ptpn1 cKO mice exhibited attenuated osteoclastogenesis and alveolar bone loss following the induction of inflammation. The Ptpn1-deficient mice were similarly protected from ovariectomy-induced bone loss compared with control mice. These results provide a novel regulatory role of PTP1B in osteoclastogenesis and suggest a potential as a therapeutic target for bone-lytic diseases. © 2021 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Hyo Jeong Kim
- Department of Biochemistry and Institute for Hard Tissue and Bone Regeneration, School of Dentistry, Kyungpook National University, Daegu, South Korea
| | - Ka-Young Ryu
- Department of Biochemistry and Institute for Hard Tissue and Bone Regeneration, School of Dentistry, Kyungpook National University, Daegu, South Korea
| | - Yong-Gun Kim
- Department of Periodontology, School of Dentistry, Kyungpook National University, Daegu, South Korea
| | - Myoung Ok Kim
- Department of Animal Biotechnology, College of Ecology and Environmental Science, Kyungpook National University, Sangju, South Korea
| | - Ji Hye Lee
- Department of Oral Pathology, School of Dentistry, Pusan National University, Yangsan, South Korea
| | - Min-Kyoung Song
- Department of Cell and Developmental Biology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, South Korea
| | - Young-Jin Youn
- Department of Physiology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Nitin Kumar Pokhrel
- Department of Biochemistry and Institute for Hard Tissue and Bone Regeneration, School of Dentistry, Kyungpook National University, Daegu, South Korea
| | - Sung-Hyun Kim
- Department of Bio-medical Analysis, Korea Polytechnic College, Chungnam, South Korea
| | - Jae-Young Kim
- Department of Biochemistry and Institute for Hard Tissue and Bone Regeneration, School of Dentistry, Kyungpook National University, Daegu, South Korea
| | - Hye-Jin Jung
- Department of Biochemistry and Institute for Hard Tissue and Bone Regeneration, School of Dentistry, Kyungpook National University, Daegu, South Korea
| | - Woo-Shin Kim
- Department of Cell and Developmental Biology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, South Korea
| | - Chang-Won Hong
- Department of Physiology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Hong-Hee Kim
- Department of Cell and Developmental Biology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, South Korea
| | - Youngkyun Lee
- Department of Biochemistry and Institute for Hard Tissue and Bone Regeneration, School of Dentistry, Kyungpook National University, Daegu, South Korea
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5
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Batoon L, Millard SM, Raggatt LJ, Wu AC, Kaur S, Sun LWH, Williams K, Sandrock C, Ng PY, Irvine KM, Bartnikowski M, Glatt V, Pavlos NJ, Pettit AR. Osteal macrophages support osteoclast-mediated resorption and contribute to bone pathology in a postmenopausal osteoporosis mouse model. J Bone Miner Res 2021; 36:2214-2228. [PMID: 34278602 DOI: 10.1002/jbmr.4413] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 06/29/2021] [Accepted: 07/14/2021] [Indexed: 11/08/2022]
Abstract
Osteal macrophages (osteomacs) support osteoblast function and promote bone anabolism, but their contribution to osteoporosis has not been explored. Although mouse ovariectomy (OVX) models have been repeatedly used, variation in strain, experimental design and assessment modalities have contributed to no single model being confirmed as comprehensively replicating the full gamut of osteoporosis pathological manifestations. We validated an OVX model in adult C3H/HeJ mice and demonstrated that it presents with human postmenopausal osteoporosis features with reduced bone volume in axial and appendicular bone and bone loss in both trabecular and cortical bone including increased cortical porosity. Bone loss was associated with increased osteoclasts on trabecular and endocortical bone and decreased osteoblasts on trabecular bone. Importantly, this OVX model was characterized by delayed fracture healing. Using this validated model, we demonstrated that osteomacs are increased post-OVX on both trabecular and endocortical bone. Dual F4/80 (pan-macrophage marker) and tartrate-resistant acid phosphatase (TRAP) staining revealed osteomacs frequently located near TRAP+ osteoclasts and contained TRAP+ intracellular vesicles. Using an in vivo inducible macrophage depletion model that does not simultaneously deplete osteoclasts, we observed that osteomac loss was associated with elevated extracellular TRAP in bone marrow interstitium and increased serum TRAP. Using in vitro high-resolution confocal imaging of mixed osteoclast-macrophage cultures on bone substrate, we observed macrophages juxtaposed to osteoclast basolateral functional secretory domains scavenging degraded bone byproducts. These data demonstrate a role for osteomacs in supporting osteoclastic bone resorption through phagocytosis and sequestration of resorption byproducts. Overall, our data expose a novel role for osteomacs in supporting osteoclast function and provide the first evidence of their involvement in osteoporosis pathogenesis. © 2021 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Lena Batoon
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Susan M Millard
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Liza J Raggatt
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Andy C Wu
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Simranpreet Kaur
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Lucas W H Sun
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Kyle Williams
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Cheyenne Sandrock
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Pei Ying Ng
- Bone Biology and Disease Laboratory, School of Biomedical Sciences, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Katharine M Irvine
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Michal Bartnikowski
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Vaida Glatt
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.,Orthopaedic Surgery Department, University of Texas Health Science Center San Antonio, San Antonio, TX, USA
| | - Nathan J Pavlos
- Bone Biology and Disease Laboratory, School of Biomedical Sciences, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Allison R Pettit
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
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6
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Chen J, Lazarenko OP, Carvalho E, Blackburn ML, Shankar K, Wankhade UD, Børsheim E. Short-Term Increased Physical Activity During Early Life Affects High-Fat Diet-Induced Bone Loss in Young Adult Mice. JBMR Plus 2021; 5:e10508. [PMID: 34258504 PMCID: PMC8260814 DOI: 10.1002/jbm4.10508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 03/22/2021] [Accepted: 04/21/2021] [Indexed: 01/01/2023] Open
Abstract
Mechanical stresses associated with physical activity (PA) have beneficial effects on increasing BMD and improving bone quality. However, a high-fat diet (HFD) and obesity tend to have negative effects on bone, by increasing bone marrow adiposity leading to increased excretion of proinflammatory cytokines, which activate RANKL-induced bone resorption. In the current study, whether short-term increased PA via access to voluntary wheel running during early life has persistent and protective effects on HFD-induced bone resorption was investigated. Sixty 4-week-old male C57BL6/J mice were divided into two groups postweaning: without or with PA (access to voluntary running wheel 7-8 km/day) for 4 weeks. After 4 weeks with or without PA, mice were further subdivided into control diet or HFD groups for 8 weeks, and then all animals were switched back to control diet for an additional 4 weeks. Mice from the HFD groups were significantly heavier and obese; however, after 4 weeks of additional control diet their body weights returned to levels of mice on continuous control diet. Using μ-CT and confirmed by pQCT of tibias and spines ex vivo, it was determined that bone volume and trabecular BMD were significantly increased with PA in control diet animals compared with sedentary animals without access to wheels, and such anabolic effects of PA on bone were sustained after ceasing PA in adult mice. Eight weeks of a HFD deteriorated bone development in mice. Unexpectedly, early-life PA did not prevent persistent effects of HFD on deteriorating bone quality; in fact, it exacerbated a HFD-induced inflammation, osteoclastogenesis, and trabecular bone loss in adult mice. In accordance with these data, signal transduction studies revealed that a HFD-induced Ezh2, DNA methyltransferase 3a, and nuclear factor of activated T-cells 1 expression were amplified in nonadherent hematopoietic cells. In conclusion, short-term increased PA in early life is capable of increasing bone mass; however, it alters the HFD-induced bone marrow hematopoietic cell-differentiation program to exacerbate increased bone resorption if PA is halted. © 2021 Arkansas Children's Nutrition Center. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Jin‐Ran Chen
- Arkansas Children's Nutrition CenterLittle RockARUSA
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
| | - Oxana P Lazarenko
- Arkansas Children's Nutrition CenterLittle RockARUSA
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
| | - Eugenia Carvalho
- Arkansas Children's Research InstituteLittle RockARUSA
- Department of GeriatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
| | - Michael L Blackburn
- Arkansas Children's Nutrition CenterLittle RockARUSA
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
| | - Kartik Shankar
- Arkansas Children's Nutrition CenterLittle RockARUSA
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
- Present address:
Department of Pediatrics, Section of NutritionUniversity of Colorado School of MedicineAuroraCOUSA
| | - Umesh D Wankhade
- Arkansas Children's Nutrition CenterLittle RockARUSA
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
| | - Elisabet Børsheim
- Arkansas Children's Nutrition CenterLittle RockARUSA
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
- Arkansas Children's Research InstituteLittle RockARUSA
- Department of GeriatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
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Abtahi J, Klintström B, Klintström E. Ibandronate Reduces the Surface Bone Resorption of Mandibular Bone Grafts: A Randomized Trial With Internal Controls. JBMR Plus 2021; 5:e10468. [PMID: 33778329 PMCID: PMC7990152 DOI: 10.1002/jbm4.10468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/13/2021] [Accepted: 01/18/2021] [Indexed: 11/19/2022] Open
Abstract
Autologous bone grafts are considered the gold standard for reconstruction of the edentulous alveolar ridges. However, this procedure is associated with unpredictable bone loss caused by physiological bone resorption. Bisphosphonates are antiresorptive drugs that act specifically on osteoclasts, thereby maintaining bone density, volume, and strength. It was hypothesized that the resorption of bone grafts treated with an ibandronate solution would be less advanced than bone grafts treated with saline. Ten patients who underwent bilateral sagittal split osteotomy were included in a randomized double‐blind trial with internal controls. Each patient received a bone graft treated with a solution of ibandronate on one side and a graft treated with saline (controls) contralaterally. Radiographs for the measurement of bone volume were obtained at 2 weeks and at 6 months after surgery. The primary endpoint was the difference in the change of bone volume between the control and the ibandronate bone grafts 6 months after surgery. All of the bone grafts healed without complications. One patient was excluded because of reoperation. In eight of the nine patients, the ibandronate bone grafts showed an increase in bone volume compared with baseline, with an average gain of 126 mm3 (40% more than baseline) with a range of +27 to +218 mm3. Only one ibandronate‐treated graft had a decrease in bone volume (8%). In the controls, an average bone volume loss of −146 mm3 (58% of baseline) with a range of −29 to −301 mm3 was seen. In the maxillofacial field, the reconstructions of atrophic alveolar ridges, especially in the esthetical zones, are challenging. These results show that bone grafts locally treated with ibandronate solution increases the remaining bone volume. This might lead to new possibilities for the maxillofacial surgeons in the preservation of bone graft volumes and for dental implant installations. © 2021 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)
- Jahan Abtahi
- Department of Oral & Maxillofacial Surgery and Department of Biomedical and Clinical Sciences Linköping University Linköping Sweden.,Center for Medical Image Science and Visualization (CMIV) Linköping University Linköping Sweden
| | - Benjamin Klintström
- Department of Biomedical Engineering and Health Systems KTH Royal Institute of Technology Stockholm Sweden
| | - Eva Klintström
- Center for Medical Image Science and Visualization (CMIV) Linköping University Linköping Sweden.,Department of Radiology and Department of Health, Medicine and Caring Sciences Linköping University Linköping Sweden
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8
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Brun J, Andreasen CM, Ejersted C, Andersen TL, Caverzasio J, Thouverey C. PDGF Receptor Signaling in Osteoblast Lineage Cells Controls Bone Resorption Through Upregulation of Csf1 Expression. J Bone Miner Res 2020; 35:2458-2469. [PMID: 32777109 DOI: 10.1002/jbmr.4150] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/25/2020] [Accepted: 07/29/2020] [Indexed: 12/15/2022]
Abstract
The physiological functions of platelet-derived growth factor receptors (PDGFRs) α and β in osteoblast biology and bone metabolism remain to be established. Here, we show that PDGFRA and PDGFRB genes are expressed by osteoblast-lineage canopy and reversal cells in close proximity to PDGFB-expressing osteoclasts within human trabecular bone remodeling units. We also report that, although removal of only one of the two PDGFRs in Osterix-positive cells does not affect bone phenotype, suppression of both PDGFRs in those osteoblast lineage cells increases trabecular bone volume in male mice as well as in female gonad-intact and ovariectomized mice. Furthermore, osteoblast lineage-specific suppression of PDGFRs reduces Csf1 expression, bone marrow level of macrophage colony-stimulating factor (M-CSF), number of osteoclasts, and, therefore, bone resorption, but does not change bone formation. Finally, abrogation of PDGFR signaling in osteoblasts blocks PDGF-induced ERK1/2-mediated Csf1 expression and M-CSF secretion in osteoblast cultures and calcitriol-mediated osteoclastogenesis in co-cultures. In conclusion, our results indicate that PDGFR signaling in osteoblast lineage cells controls bone resorption through ERK1/2-mediated Csf1 expression. © 2020 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Julia Brun
- Service of Bone Diseases, Department of Medicine, University Hospital of Geneva, Geneva, Switzerland
| | - Christina Møller Andreasen
- Clinical Cell Biology, Pathology Research Unit, Odense University Hospital, Odense C, Denmark.,Department of Molecular Medicine, University of Southern Denmark, Odense C, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense C, Denmark
| | - Charlotte Ejersted
- Department of Endocrinology, Odense University Hospital, Odense C, Denmark
| | - Thomas Levin Andersen
- Clinical Cell Biology, Pathology Research Unit, Odense University Hospital, Odense C, Denmark.,Department of Molecular Medicine, University of Southern Denmark, Odense C, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense C, Denmark
| | - Joseph Caverzasio
- Service of Bone Diseases, Department of Medicine, University Hospital of Geneva, Geneva, Switzerland
| | - Cyril Thouverey
- Service of Bone Diseases, Department of Medicine, University Hospital of Geneva, Geneva, Switzerland
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9
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Phan QT, Liu R, Tan WH, Imangali N, Cheong B, Schartl M, Winkler C. Macrophages Switch to an Osteo-Modulatory Profile Upon RANKL Induction in a Medaka ( Oryzias latipes) Osteoporosis Model. JBMR Plus 2020; 4:e10409. [PMID: 33210062 PMCID: PMC7657398 DOI: 10.1002/jbm4.10409] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/16/2020] [Accepted: 08/27/2020] [Indexed: 12/16/2022] Open
Abstract
In mammals, osteoclasts differentiate from macrophages in the monocyte lineage. Although many factors driving osteoclast formation are known, the detailed processes underlying precursor recruitment, differentiation, and interaction of macrophages with other cell types involved in bone remodeling are poorly understood. Using live imaging in a transgenic medaka osteoporosis model, where ectopic osteoclasts are induced by RANKL expression, we show that a subset of macrophages is recruited to bone matrix to physically interact with bone-forming osteoblast progenitors. These macrophages subsequently differentiate into cathepsin K- (ctsk-) positive osteoclasts. One day later, other macrophages are recruited to clear dying osteoclasts from resorbed bone by phagocytosis. To better understand the molecular changes underlying these dynamic processes, we performed transcriptome profiling of activated macrophages upon RANKL induction. This revealed an upregulation of several bone-related transcripts. Besides osteoclast markers, we unexpectedly also found expression of osteoblast-promoting signals in activated macrophages, suggesting a possible non-cell autonomous role in osteogenesis. Finally, we show that macrophage differentiation into osteoclasts is dependent on inflammatory signals. Medaka deficient for TNFα or treated with the TNFα-inhibitor pentoxifylline exhibited impaired macrophage recruitment and osteoclast differentiation. These results show the involvement of inflammatory signals and the dynamics of a distinct subset of macrophages during osteoclast formation. © 2020 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)
- Quang Tien Phan
- Department of Biological Sciences and Centre for Bioimaging SciencesNational University of SingaporeSingaporeSingapore
| | - Ranran Liu
- Department of Biological Sciences and Centre for Bioimaging SciencesNational University of SingaporeSingaporeSingapore
| | - Wen Hui Tan
- Department of Biological Sciences and Centre for Bioimaging SciencesNational University of SingaporeSingaporeSingapore
| | - Nurgul Imangali
- Department of Biological Sciences and Centre for Bioimaging SciencesNational University of SingaporeSingaporeSingapore
| | - Benedict Cheong
- Department of Biological Sciences and Centre for Bioimaging SciencesNational University of SingaporeSingaporeSingapore
| | - Manfred Schartl
- Department of Developmental Biochemistry, BiocenterUniversity of WürzburgWürzburgGermany
- The Xiphophorus Genetic Stock CenterTexas State UniversitySan MarcosTexasUSA
| | - Christoph Winkler
- Department of Biological Sciences and Centre for Bioimaging SciencesNational University of SingaporeSingaporeSingapore
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10
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Nissen A, Marstrand S, Skov-Jeppesen K, Bremholm L, Hornum M, Andersen UB, Holst JJ, Rosenkilde MM, Hartmann B. A Pilot Study Showing Acute Inhibitory Effect of GLP-1 on the Bone Resorption Marker CTX in Humans. JBMR Plus 2019; 3:e10209. [PMID: 31687645 PMCID: PMC6820456 DOI: 10.1002/jbm4.10209] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/19/2019] [Accepted: 04/07/2019] [Indexed: 12/12/2022] Open
Abstract
Bones have been suggested to be a target for glucagon-like peptide -1 (GLP-1); however, studies of the effects on human bones so far have given diverging results. We hypothesized that GLP-1, together with glucagon-like peptide-2 and glucose-dependent insulinotropic polypeptide, plays a role in the gut-bone axis. We examined the acute effect of three GLP-1 receptor ligands [GLP-1 (7-36)amide, GLP-1 (9-36)amide, and exenatide] on markers of bone remodeling. Eight healthy, normal-weight participants, with a mean age of 24.3 years, were studied for 4 days in a double-blinded, randomized clinical trial. Blood was collected before and after s.c. injection of GLP-1 (7-36)amide (1.5 nmol/kg), GLP-1 (9-36)amide (1.5 nmol/kg), exenatide (2.4 nmol/subject), or saline. Plasma was analyzed for bone markers and for osteoprotegerin (OPG), PTH, and IGF-1 levels. All ligands were tested in vitro for their cAMP-inducing activity on the human GLP-1 receptor. GLP-1 (7-36)amide decreased CTX-levels, compared with placebo (area under the curve [AUC] ±SD 0 to 120 min = -2143 ± 1294 % × min versus -883 ± 1557 % × min; p < 0.05). No difference was observed between placebo and GLP-1 (9-36)amide, or between placebo and exenatide, although exenatide had a similar potency as GLP-1 (7-36)amide for cAMP formation in vitro (EC50 of 0.093 and 0.054 nmol/L). However, exenatide reached maximum plasma concentration at 90 min versus 15 min for GLP-1 (7-36)amide, and plasma CTX was significantly decreased during the second hour of the study after exenatide injections compared with placebo (AUC ±SD -463.1 ± 218 % × min and -136 ± 91 % × min; p < 0.05). There was no effect of the injections on bone formation markers (P1NP and osteocalcin) or on OPG, PTH and IGF-1 levels. In conclusion, we show that GLP-1 receptor agonists, but not the primary metabolite GLP-1 (9-36)amide, decrease bone resorption, and suggest that GLP-1 may be part of the gut-bone axis. © 2019 The Authors. JBMR Plus is published by Wiley Periodicals, Inc. on behalf of the American Society for Bone and Mineral Research.
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Affiliation(s)
- Anne Nissen
- Department of Biomedical Sciences The Panum Institute, University of Copenhagen Copenhagen Denmark.,NNF Center for Basic Metabolic Research The Panum Institute, University of Copenhagen Copenhagen Denmark
| | - Simone Marstrand
- Department of Biomedical Sciences The Panum Institute, University of Copenhagen Copenhagen Denmark.,NNF Center for Basic Metabolic Research The Panum Institute, University of Copenhagen Copenhagen Denmark
| | - Kirsa Skov-Jeppesen
- Department of Biomedical Sciences The Panum Institute, University of Copenhagen Copenhagen Denmark.,NNF Center for Basic Metabolic Research The Panum Institute, University of Copenhagen Copenhagen Denmark
| | - Lasse Bremholm
- Department of Surgery (Gastroenterology Section) Zealand University Hospital, University of Copenhagen Copenhagen Denmark
| | - Mads Hornum
- Department of Nephrology Rigshospitalet Copenhagen Denmark.,Institute for Clinical Medicine University of Copenhagen Copenhagen Denmark
| | - Ulrik B Andersen
- Department of Clinical Physiology and Nuclear Medicine and PET Rigshospitalet (Glostrup Section), University of Copenhagen Copenhagen Denmark
| | - Jens Juul Holst
- Department of Biomedical Sciences The Panum Institute, University of Copenhagen Copenhagen Denmark.,NNF Center for Basic Metabolic Research The Panum Institute, University of Copenhagen Copenhagen Denmark
| | - Mette Marie Rosenkilde
- Department of Biomedical Sciences The Panum Institute, University of Copenhagen Copenhagen Denmark.,NNF Center for Basic Metabolic Research The Panum Institute, University of Copenhagen Copenhagen Denmark
| | - Bolette Hartmann
- Department of Biomedical Sciences The Panum Institute, University of Copenhagen Copenhagen Denmark.,NNF Center for Basic Metabolic Research The Panum Institute, University of Copenhagen Copenhagen Denmark
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11
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Kwon Y, Park OJ, Kim J, Cho JH, Yun CH, Han SH. Cyclic Dinucleotides Inhibit Osteoclast Differentiation Through STING-Mediated Interferon-β Signaling. J Bone Miner Res 2019; 34:1366-1375. [PMID: 30779854 DOI: 10.1002/jbmr.3701] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 02/07/2019] [Accepted: 02/10/2019] [Indexed: 11/07/2022]
Abstract
Cyclic dinucleotides (CDNs), such as cyclic diadenylate monophosphate and cyclic diguanylate monophosphate, are commensal bacteria-derived second messengers in the gut that modulate bacterial survival, colonization, and biofilm formation. Recently, CDNs have been discovered to have an immunomodulatory activity by inducing the expression of type I interferon (IFN) through STING signaling pathway in macrophages. Because CDNs are possibly absorbed and delivered into the bone marrow, where bone-resorbing osteoclasts are derived from monocyte/macrophage lineages, CDNs could affect bone metabolism by regulating osteoclast differentiation. In this study, we investigated the effect of CDNs on the differentiation and function of osteoclasts and osteoblasts. When bone marrow-derived macrophages (BMMs) were differentiated into osteoclasts with macrophage colony-stimulating factor (M-CSF) and receptor activator of NF-κB ligand (RANKL) in the presence of CDNs, the differentiation was inhibited by CDNs in a dose-dependent manner. In contrast, CDNs did not influence the differentiation of committed osteoclasts or osteoblast precursors. STING signaling pathway appeared to be critical for CDNs-mediated inhibition of osteoclast differentiation since CDNs induced the phosphorylation of TBK1 and IRF3, a representative feature of STING activation, and osteoclast differentiation was restored in STING knockdown BMMs with siRNA. Moreover, CDNs increased the mRNA expression of STING-meditated IFN-β, which is a negative regulator of osteoclastogenesis. In addition, CDNs also induced the phosphorylation of STAT1, which mediates IFN-α/β receptor (IFNAR) signal transduction. The inhibitory effects of CDNs on osteoclast differentiation were not observed in the presence of antibody blocking IFNAR or in macrophages derived from IFNAR1-/- mice. Experiments using a mouse calvarial implantation model showed that RANKL-induced bone resorption was inhibited by CDNs. Taken together, these results suggest that CDNs inhibit osteoclast differentiation and bone resorption through induction of IFN-β via the STING signaling pathway. © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
- Yeongkag Kwon
- Department of Oral Microbiology and Immunology, DRI and BK21 Plus Program, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Ok-Jin Park
- Department of Oral Microbiology and Immunology, DRI and BK21 Plus Program, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Jiseon Kim
- Department of Oral Microbiology and Immunology, DRI and BK21 Plus Program, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Jae-Ho Cho
- Academy of Immunology and Microbiology, Institute for Basic Science, Pohang, Republic of Korea
| | - Cheol-Heui Yun
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Seung Hyun Han
- Department of Oral Microbiology and Immunology, DRI and BK21 Plus Program, School of Dentistry, Seoul National University, Seoul, Republic of Korea
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12
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Kemp JP, Sayers A, Fraser WD, Davey Smith G, Ala-Korpela M, Evans DM, Tobias JH. A Metabolic Screen in Adolescents Reveals an Association Between Circulating Citrate and Cortical Bone Mineral Density. J Bone Miner Res 2019; 34:1306-1313. [PMID: 30882941 DOI: 10.1002/jbmr.3697] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 01/10/2019] [Accepted: 02/03/2019] [Indexed: 12/29/2022]
Abstract
Observations that insulin and adiponectin levels are related to cortical bone size in adolescents, independently of body composition, suggest factors related to fat metabolism directly influence skeletal development. To explore this question, we examined associations between a metabolic screen focusing on fat metabolism, and peripheral quantitative computed tomography (pQCT) measures of the mid-tibia, in 15-year-olds from the Avon Longitudinal Study of Parents and Children. Metabolic profiles were generated by proton nuclear magnetic resonance spectroscopy, from blood samples obtained at the same time as pQCT scans. Ordinary least squares linear regression was used to investigate relationships between metabolic measures and periosteal circumference (PC), cortical thickness (CT), and cortical bone mineral density (BMDC ). Metabolic profiles yielded 22 independent components following principal component analysis (PCA), giving a Bonferroni-adjusted threshold for statistical significance of p = 0.002. Data were available in 1121 subjects (487 males), mean age 15 years. Several metabolites related to lipid and cholesterol metabolism were associated with PC, CT, and BMDC after adjustment for age, sex, and Tanner stage. After additional adjustment for height, fat, and lean mass, only the association between citrate and BMDC remained below the Bonferroni-significant threshold (β = -0.14 [-0.18, -0.09]) (β represents a standardized coefficient). Citrate also showed evidence of association with PC (β = 0.06 [0.03, 0.10]) and strength strain index (SSI; β = 0.04 [0.01, 0.08]). Subsequently, we investigated whether these relationships were explained by increased bone resorption. Citrate was strongly related to serum β-C-telopeptides of type I collagen (β-CTX) (β = 0.20 [0.16, 0.23]). After additional adjustment for β-CTX the above associations between citrate and BMDC (β = -0.04 [-0.08, 0.01]), PC (β = 0.03 [-0.01, 0.07]) and SSI (β = 0.03 [-0.01, 0.07]) were no longer observed. We conclude that in adolescents, circulating levels of citrate are inversely related to BMDC and positively related to PC, reflecting associations with higher bone turnover. Further studies are justified to elucidate possible contributions of citrate, a constituent of bone matrix, to bone resorption and cortical density. © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
- John P Kemp
- University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Queensland, Australia
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Adrian Sayers
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | | | - George Davey Smith
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Mika Ala-Korpela
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- Systems Epidemiology, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Computational Medicine, Faculty of Medicine, University of Oulu and Biocenter Oulu, Oulu, Finland
- NMR Metabolomics Laboratory, School of Pharmacy, University of Eastern Finland, Kuopio, Finland
- Population Health Science, Bristol Medical School, University of Bristol, Bristol, UK
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Faculty of Medicine, Nursing and Health Sciences, The Alfred Hospital, Monash University, Melbourne, Victoria, Australia
| | - David M Evans
- University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Queensland, Australia
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Jonathan H Tobias
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
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13
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Abstract
Advances in the last decade have established the osteocyte, the most abundant cell in bone, as a dynamic and multifunctional cell capable of controlling bone homeostasis by regulating the function of both osteoblasts and osteoclasts. In addition, accumulating evidence demonstrates that osteocyte function is altered in several skeletal disorders, and targeting osteocytes and their derived factors improves skeletal health. Despite the remarkable progress in our understanding of osteocyte biology, there has been a paucity of information regarding the role of osteocytes in the progression of cancer in bone. Exciting, recent discoveries suggest that tumor cells communicate with osteocytes to generate a microenvironment that supports the growth and survival of cancer cells and stimulates bone destruction. This review features these novel findings and discussions regarding the impact of chemotherapy on osteocyte function and the potential of targeting osteocytes for the treatment of cancer in bone. © 2019 The Authors. JBMR Plus published by Wiley Periodicals, Inc. on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Emily G Atkinson
- Department of Anatomy and Cell BiologyIndiana University School of MedicineIndianapolisINUSA
| | - Jesús Delgado‐Calle
- Department of Anatomy and Cell BiologyIndiana University School of MedicineIndianapolisINUSA
- Department of MedicineDivision of Hematology/OncologyIndiana University School of MedicineIndianapolisINUSA
- Indiana Center for Musculoskeletal HealthIndiana University School of MedicineIndianapolisINUSA
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14
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Yang S, Zhang W, Cai M, Zhang Y, Jin F, Yan S, Baloch Z, Fang Z, Xue S, Tang R, Xiao J, Huang Q, Sun Y, Wang X. Suppression of Bone Resorption by miR-141 in Aged Rhesus Monkeys. J Bone Miner Res 2018; 33:1799-1812. [PMID: 29852535 DOI: 10.1002/jbmr.3479] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 05/01/2018] [Accepted: 05/04/2018] [Indexed: 12/19/2022]
Abstract
Aging-related osteoporosis (OP) is considered a serious public health concern. Approximately 30% of postmenopausal women suffer from OP; more than 40% of them risk fragility fractures. Multiple drugs have been prescribed to treat OP, but they are not ideal because of low cure rates and adverse side effects. miRNA-based gene therapy is a rapidly developing strategy in disease treatment that presents certain advantages, such as large-scale production capability, genetic safety, and rapid effects. miRNA drugs have been used primarily in cancer treatments; they have not yet been reported as candidates for osteoclast-targeted-OP treatment in primates. Their therapeutic efficacy has been limited by several shortcomings, such as low efficiency of selective delivery, insufficient expression levels in targeting cells, and unexpected side effects. Here, we identify miR-141 as a critical suppressor of osteoclastogenesis and bone resorption. The expression levels of miR-141 are positively correlated with BMD and negatively correlated with the aging of bones in both aged rhesus monkeys (Macaca mulatta) and osteoporotic patients. Selective delivery of miR-141 into the osteoclasts of aged rhesus monkeys via a nucleic acid delivery system allowed for a gradual increase in bone mass without significant effects on the health and function of primary organs. Furthermore, we found that the functional mechanism of miR-141 resides in its targeting of two osteoclast differentiation players, Calcr (calcitonin receptors) and EphA2 (ephrin type-A receptor 2 precursor). Our study suggests that miRNAs, such as miR-141, could play a crucial role in suppressing bone resorption in primates and provide reliable experimental evidence for the clinical application of miRNA in OP treatment. © 2018 American Society for Bone and Mineral Research.
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Affiliation(s)
- Shihua Yang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Key Laboratory of Comprehensive Prevention and Control for Severe Clinical Animal Diseases of Guangdong Province, South China Agricultural University, Guangzhou, China
| | - Wenhui Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Key Laboratory of Comprehensive Prevention and Control for Severe Clinical Animal Diseases of Guangdong Province, South China Agricultural University, Guangzhou, China
| | - Mingxiang Cai
- School & Hospital of Stomatology, Tongji University, Shanghai, China
| | - Yuanxu Zhang
- Department of Cell Biology & Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Fujun Jin
- Department of Cell Biology & Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Sen Yan
- Department of Cell Biology & Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Zulqurain Baloch
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Key Laboratory of Comprehensive Prevention and Control for Severe Clinical Animal Diseases of Guangdong Province, South China Agricultural University, Guangzhou, China
| | - Zhihao Fang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Key Laboratory of Comprehensive Prevention and Control for Severe Clinical Animal Diseases of Guangdong Province, South China Agricultural University, Guangzhou, China
| | - Senren Xue
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Key Laboratory of Comprehensive Prevention and Control for Severe Clinical Animal Diseases of Guangdong Province, South China Agricultural University, Guangzhou, China
| | - Rongping Tang
- WinconTheraCells Biotechnologies Co. Ltd, Nanning, China
| | - Jia Xiao
- Department of Cell Biology & Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Qunshan Huang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Key Laboratory of Comprehensive Prevention and Control for Severe Clinical Animal Diseases of Guangdong Province, South China Agricultural University, Guangzhou, China
| | - Yao Sun
- School & Hospital of Stomatology, Tongji University, Shanghai, China
| | - Xiaogang Wang
- Department of Cell Biology & Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China.,Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing, 100083, China
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15
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Jung YK, Kwon KT, Jang JA, Han MS, Kim GW, Han S. Enhanced Activation of Rac1/Cdc42 and MITF Leads to Augmented Osteoclastogenesis in Autosomal Dominant Osteopetrosis Type II. JBMR Plus 2018; 3:e10070. [PMID: 30828687 PMCID: PMC6383696 DOI: 10.1002/jbm4.10070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 05/28/2018] [Accepted: 06/10/2018] [Indexed: 11/23/2022] Open
Abstract
The autosomal dominant osteopetrosis type II (ADOII) caused by the mutation of chloride channel 7 (ClC‐7) gene is the most common form of adult‐onset osteopetrosis. Despite dysfunctional bone resorption, an augmented osteoclast differentiation was reported recently in ADOII patients. DNA sequencing analysis of the ADOII patient's ClC‐7 gene identified a known heterozygous mutation, c.643G>A in exon 7, encoding p.Gly215Arg. In vitro osteoclast differentiation from the ADOII patient's peripheral blood mononuclear cells (PBMCs) increased compared with control despite their dysfunctional bone resorbing capacity. Osteoclasts from the ADOII patient's PBMCs and ClC‐7 knockdown bone marrow monocytes (BMMs) showed an enhanced Ser‐71 phosphorylation of Rac1/Cdc42 and increase of the microphthalmia‐associated transcription factor (MITF) and receptor activator of NF‐κB (RANK) that can be responsible for the enhanced osteoclast differentiation. © 2018 The Authors. JBMR Plus published by Wiley Periodicals, Inc. on behalf of the American Society for Bone and Mineral Research.
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Affiliation(s)
- Youn-Kwan Jung
- Laboratory for Arthritis and Bone Biology Fatima Research Institute Daegu Fatima Hospital Daegu Republic of Korea
| | - Ki-Tae Kwon
- Department of Internal Medicine Kyungpook National University Hospital Daegu Republic of Korea
| | - Ji-Ae Jang
- Laboratory for Arthritis and Bone Biology Fatima Research Institute Daegu Fatima Hospital Daegu Republic of Korea
| | - Min-Su Han
- Laboratory for Arthritis and Bone Biology Fatima Research Institute Daegu Fatima Hospital Daegu Republic of Korea
| | - Gun-Woo Kim
- Laboratory for Arthritis and Bone Biology Fatima Research Institute Daegu Fatima Hospital Daegu Republic of Korea.,Department of Internal Medicine Daegu Fatima Hospital Daegu Republic of Korea
| | - Seungwoo Han
- Laboratory for Arthritis and Bone Biology Fatima Research Institute Daegu Fatima Hospital Daegu Republic of Korea.,Department of Internal Medicine Kyungpook National University Hospital Daegu Republic of Korea
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16
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Andreasen CM, Delaisse JM, van der Eerden BC, van Leeuwen JP, Ding M, Andersen TL. Understanding Age-Induced Cortical Porosity in Women: The Accumulation and Coalescence of Eroded Cavities Upon Existing Intracortical Canals Is the Main Contributor. J Bone Miner Res 2018; 33:606-620. [PMID: 29193312 DOI: 10.1002/jbmr.3354] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 11/17/2017] [Accepted: 11/27/2017] [Indexed: 01/08/2023]
Abstract
Intracortical bone remodeling normally ensures maintenance of the cortical bone matrix and strength, but during aging, this remodeling generates excessive porosity. The mechanism behind the age-induced cortical porosity is poorly understood and addressed in the present study. This study consists of a histomorphometric analysis of sections of iliac bone specimens from 35 women (age 16-78 years). First, the study shows that the age-induced cortical porosity reflects an increased pore size rather than an increased pore density. Second, it establishes a novel histomorphometric classification of the pores, which is based on the characteristics of the remodeling sites to which each pore is associated. It takes into consideration (i) the stage of the remodeling event at the level where the pore is sectioned, (ii) whether the event corresponds with the generation of a new pore through penetrative tunneling (type 1 pores) or with remodeling of an existing pore (type 2 pores), and (iii) in the latter case, whether or not the new remodeling event leads to the coalescence of pores. Of note, the advantage of this classification is to relate porosity with its generation mechanism. Third, it demonstrates that aging and porosity are correlated with: a shift from type 1 to type 2 pores, reflecting that the remodeling of existing pores is higher; an accumulation of eroded type 2 pores, reflecting an extended resorption-reversal phase; and a coalescence of these eroded type 2 pores into enlarged coalescing type 2 cavities. Collectively, this study supports the notion, that age-related increase in cortical porosity is the result of intracortical remodeling sites upon existing pores, with an extended reversal-resorption phase (eroded type 2 pores) that may likely result in a delayed or absent initiation of the subsequent bone formation. © 2017 The Authors. Journal of Bone and Mineral Research Published by Wiley Periodicals Inc.
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Affiliation(s)
- Christina Møller Andreasen
- Orthopeadic Research Laboratory, Department of Orthopaedic Surgery & Traumatology, Odense University Hospital, Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Department of Clinical Cell Biology, Vejle Hospital/Lillebaelt Hospital, Institute of Regional Health Research, University of Southern Denmark, Vejle, Denmark
| | - Jean-Marie Delaisse
- Department of Clinical Cell Biology, Vejle Hospital/Lillebaelt Hospital, Institute of Regional Health Research, University of Southern Denmark, Vejle, Denmark
| | - Bram Cj van der Eerden
- Laboratory for Calcium and Bone Metabolism, Department of Internal Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Johannes Ptm van Leeuwen
- Laboratory for Calcium and Bone Metabolism, Department of Internal Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Ming Ding
- Orthopeadic Research Laboratory, Department of Orthopaedic Surgery & Traumatology, Odense University Hospital, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Thomas Levin Andersen
- Department of Clinical Cell Biology, Vejle Hospital/Lillebaelt Hospital, Institute of Regional Health Research, University of Southern Denmark, Vejle, Denmark
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17
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Cummings SR, Ferrari S, Eastell R, Gilchrist N, Jensen JEB, McClung M, Roux C, Törring O, Valter I, Wang AT, Brown JP. Vertebral Fractures After Discontinuation of Denosumab: A Post Hoc Analysis of the Randomized Placebo-Controlled FREEDOM Trial and Its Extension. J Bone Miner Res 2018; 33:190-198. [PMID: 29105841 DOI: 10.1002/jbmr.3337] [Citation(s) in RCA: 381] [Impact Index Per Article: 63.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 10/31/2017] [Accepted: 11/02/2017] [Indexed: 11/10/2022]
Abstract
Denosumab reduces bone resorption and vertebral and nonvertebral fracture risk. Denosumab discontinuation increases bone turnover markers 3 months after a scheduled dose is omitted, reaching above-baseline levels by 6 months, and decreases bone mineral density (BMD) to baseline levels by 12 months. We analyzed the risk of new or worsening vertebral fractures, especially multiple vertebral fractures, in participants who discontinued denosumab during the FREEDOM study or its Extension. Participants received ≥2 doses of denosumab or placebo Q6M, discontinued treatment, and stayed in the study ≥7 months after the last dose. Of 1001 participants who discontinued denosumab during FREEDOM or Extension, the vertebral fracture rate increased from 1.2 per 100 participant-years during the on-treatment period to 7.1, similar to participants who received and then discontinued placebo (n = 470; 8.5 per 100 participant-years). Among participants with ≥1 off-treatment vertebral fracture, the proportion with multiple (>1) was larger among those who discontinued denosumab (60.7%) than placebo (38.7%; p = 0.049), corresponding to a 3.4% and 2.2% risk of multiple vertebral fractures, respectively. The odds (95% confidence interval) of developing multiple vertebral fractures after stopping denosumab were 3.9 (2.1-7. 2) times higher in those with prior vertebral fractures, sustained before or during treatment, than those without, and 1.6 (1.3-1.9) times higher with each additional year of off-treatment follow-up; among participants with available off-treatment total hip (TH) BMD measurements, the odds were 1.2 (1.1-1.3) times higher per 1% annualized TH BMD loss. The rates (per 100 participant-years) of nonvertebral fractures during the off-treatment period were similar (2.8, denosumab; 3.8, placebo). The vertebral fracture rate increased upon denosumab discontinuation to the level observed in untreated participants. A majority of participants who sustained a vertebral fracture after discontinuing denosumab had multiple vertebral fractures, with greatest risk in participants with a prior vertebral fracture. Therefore, patients who discontinue denosumab should rapidly transition to an alternative antiresorptive treatment. Clinicaltrails.gov: NCT00089791 (FREEDOM) and NCT00523341 (Extension). © 2017 American Society for Bone and Mineral Research.
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Affiliation(s)
- Steven R Cummings
- San Francisco Coordinating Center, CPMC Research Institute, San Francisco, CA, USA
| | | | | | | | | | | | | | - Ove Törring
- Karolinska Institutet, Södersjukhuset, Stockholm, Sweden
| | - Ivo Valter
- Center for Clinical and Basic Research, Tallinn, Estonia
| | | | - Jacques P Brown
- Laval University and CHU de Québec-Université Laval (CHUL), Quebec City, Canada
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18
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Sun W, Zhang H, Wang H, Chiu YG, Wang M, Ritchlin CT, Kiernan A, Boyce BF, Xing L. Targeting Notch-Activated M1 Macrophages Attenuates Joint Tissue Damage in a Mouse Model of Inflammatory Arthritis. J Bone Miner Res 2017; 32:1469-1480. [PMID: 28256007 PMCID: PMC5489377 DOI: 10.1002/jbmr.3117] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/14/2017] [Accepted: 02/27/2017] [Indexed: 12/20/2022]
Abstract
Expression levels of Notch signaling molecules are increased in synovium from patients with rheumatoid arthritis (RA). However, it is not known which cell type(s) in RA synovium have Notch activation or if they play a pathogenetic role in RA. Here, we used Hes1-GFP/TNF-transgenic (TNF-Tg) mice to investigate the role of cells with active Notch signaling (GFP+) in RA. The number of GFP+ cells was significantly increased in synovium in Hes1-GFP/TNF-Tg mice and about 60% of them were F4/80+ macrophages expressing the inflammatory macrophage (M1) marker. TNF-Tg mice transplanted with Hes1-GFP/TNF-Tg bone marrow (BM) had significantly more GFP+ cells in their synovium than in BM. Intraarticular injection of Hes1-GFP/TNF-Tg or Hes1-GFP+ BM macrophages into WT and TNF-Tg mice showed the highest synovial GFP+ cells in the TNF-Tg mice that received Hes1-GFP/TNF-Tg cells. Thapsigargin (THAP), a Notch inhibitor, decreased TNF-induced M1 and increased M2 numbers and reduced joint lesion, synovial M1s, and GFP+ cells in Hes1-GFP/TNF-Tg mice. THAP did not affect M1s from mice carrying a constitutively active Notch1. Thus, the main cells with activated Notch signaling in the inflamed synovium of TNF-Tg mice are M1s derived from BM and targeting them may represent a new therapeutic approach for patients with inflammatory arthritis. © 2017 American Society for Bone and Mineral Research.
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Affiliation(s)
- Wen Sun
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Hengwei Zhang
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Hua Wang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Yahui Grace Chiu
- Allergy/Immunology and Rheumatology Division, University of Rochester Medical Center, Rochester, NY, USA
| | - Mengmeng Wang
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Christopher T Ritchlin
- Allergy/Immunology and Rheumatology Division, University of Rochester Medical Center, Rochester, NY, USA.,Center for Musculoskeletal Research (CMSR), University of Rochester Medical Center, Rochester, NY, USA
| | - Amy Kiernan
- Department of Ophthalmology, University of Rochester Medical Center, Rochester, NY, USA
| | - Brendan F Boyce
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA.,Center for Musculoskeletal Research (CMSR), University of Rochester Medical Center, Rochester, NY, USA
| | - Lianping Xing
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA.,Center for Musculoskeletal Research (CMSR), University of Rochester Medical Center, Rochester, NY, USA
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19
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Zhou C, Wang Y, Peng J, Li C, Liu P, Shen X. SNX10 Plays a Critical Role in MMP9 Secretion via JNK-p38-ERK Signaling Pathway. J Cell Biochem 2017; 118:4664-4671. [PMID: 28498635 DOI: 10.1002/jcb.26132] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 05/11/2017] [Indexed: 12/19/2022]
Abstract
Matrix metalloproteinases (MMPs) plays a critical role in the degradation of extracellular matrix (ECM). Sorting nexin (SNX) 10 is a member of the SNX family, which functions in regulation of endosomal sorting and osteoclast activation, has been implicated to play an important role in the bone erosion of rheumatoid arthritis. In this study, we aimed to investigate the possible role of SNX10 on MMP9 secretion and the potential mechanism. By immunostaining and co-immunoprecipitation, we found that SNX10 was extensively co-localized with MMP9, indicating that SNX10 might participate in MMP9 trafficking. After knocking down SNX10 via siRNA, the secretion and activity of MMP9 was significantly reduced, but the amount of protein was increased. By contraries, over-expression of SNX10 could increase the secretion and activity levels. Deficiency of SNX10 impaired the differentiation and bone resorption function of osteoclast, with a low activity of MMP9 compared to WT one. In SNX10 knockout osteoclast, the phosphorylation levels of JNK, p38, and ERK were obviously down-regulated. Our results first identified the role of SNX10 in MMP9 trafficking and secretion, and provided an evidence for SNX10 as a possible therapeutic target for bone destructing disease. J. Cell. Biochem. 118: 4664-4671, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Chun Zhou
- Laboratory of Immunopharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Laboratory of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Ying Wang
- Laboratory of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jin Peng
- Laboratory of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Cuixian Li
- Laboratory of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Peiqing Liu
- Laboratory of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xiaoyan Shen
- Laboratory of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China.,Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
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20
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Wang W, Wang H, Zhou X, Li X, Sun W, Dellinger M, Boyce BF, Xing L. Lymphatic Endothelial Cells Produce M-CSF, Causing Massive Bone Loss in Mice. J Bone Miner Res 2017; 32:939-950. [PMID: 28052488 PMCID: PMC5413433 DOI: 10.1002/jbmr.3077] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 12/22/2016] [Accepted: 12/30/2016] [Indexed: 11/08/2022]
Abstract
Gorham-Stout disease (GSD) is a rare bone disorder characterized by aggressive osteolysis associated with lymphatic vessel invasion within bone marrow cavities. The etiology of GSD is not known, and there is no effective therapy or animal model for the disease. Here, we investigated if lymphatic endothelial cells (LECs) affect osteoclasts (OCs) to cause a GSD osteolytic phenotype in mice. We examined the effect of a mouse LEC line on osteoclastogenesis in co-cultures. LECs significantly increased receptor activator of NF-κB ligand (RANKL)-mediated OC formation and bone resorption. LECs expressed high levels of macrophage colony-stimulating factor (M-CSF), but not RANKL, interleukin-6 (IL-6), and tumor necrosis factor (TNF). LEC-mediated OC formation and bone resorption were blocked by an M-CSF neutralizing antibody or Ki20227, an inhibitor of the M-CSF receptor, c-Fms. We injected LECs into the tibias of wild-type (WT) mice and observed massive osteolysis on X-ray and micro-CT scans. Histology showed that LEC-injected tibias had significant trabecular and cortical bone loss and increased OC numbers. M-CSF protein levels were significantly higher in serum and bone marrow plasma of mice given intra-tibial LEC injections. Immunofluorescence staining showed extensive replacement of bone and marrow by podoplanin+ LECs. Treatment of LEC-injected mice with Ki20227 significantly decreased tibial bone destruction. In addition, lymphatic vessels in a GSD bone sample were stained positively for M-CSF. Thus, LECs cause bone destruction in vivo in mice by secreting M-CSF, which promotes OC formation and activation. Blocking M-CSF signaling may represent a new therapeutic approach for treatment of patients with GSD. Furthermore, tibial injection of LECs is a useful mouse model to study GSD. © 2017 American Society for Bone and Mineral Research.
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Affiliation(s)
- Wensheng Wang
- The 1st Affiliated Hospital, Xinxiang Medical University, Xinxiang, China.,Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Hua Wang
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA.,Institute of Stomatology, Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Xichao Zhou
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Xing Li
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Wen Sun
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Michael Dellinger
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Brendan F Boyce
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA.,Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Lianping Xing
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA.,Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
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21
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Takarada T, Xu C, Ochi H, Nakazato R, Yamada D, Nakamura S, Kodama A, Shimba S, Mieda M, Fukasawa K, Ozaki K, Iezaki T, Fujikawa K, Yoneda Y, Numano R, Hida A, Tei H, Takeda S, Hinoi E. Bone Resorption Is Regulated by Circadian Clock in Osteoblasts. J Bone Miner Res 2017; 32:872-881. [PMID: 27925286 DOI: 10.1002/jbmr.3053] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 11/13/2016] [Accepted: 11/30/2016] [Indexed: 12/21/2022]
Abstract
We have previously shown that endochondral ossification is finely regulated by the Clock system expressed in chondrocytes during postnatal skeletogenesis. Here we show a sophisticated modulation of bone resorption and bone mass by the Clock system through its expression in bone-forming osteoblasts. Brain and muscle aryl hydrocarbon receptor nuclear translocator-like protein 1 (Bmal1) and Period1 (Per1) were expressed with oscillatory rhythmicity in the bone in vivo, and circadian rhythm was also observed in cultured osteoblasts of Per1::luciferase transgenic mice. Global deletion of murine Bmal1, a core component of the Clock system, led to a low bone mass, associated with increased bone resorption. This phenotype was recapitulated by the deletion of Bmal1 in osteoblasts alone. Co-culture experiments revealed that Bmal1-deficient osteoblasts have a higher ability to support osteoclastogenesis. Moreover, 1α,25-dihydroxyvitamin D3 [1,25(OH)2 D3 ]-induced receptor activator of nuclear factor κB ligand (Rankl) expression was more strongly enhanced in both Bmal1-deficient bone and cultured osteoblasts, whereas overexpression of Bmal1/Clock conversely inhibited it in osteoblasts. These results suggest that bone resorption and bone mass are regulated at a sophisticated level by osteoblastic Clock system through a mechanism relevant to the modulation of 1,25(OH)2 D3 -induced Rankl expression in osteoblasts. © 2017 American Society for Bone and Mineral Research.
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Affiliation(s)
- Takeshi Takarada
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School, Kanazawa, Ishikawa, Japan
- Department of Regenerative Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Cheng Xu
- Department of Physiology and Cell Biology, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Hiroki Ochi
- Department of Physiology and Cell Biology, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Ryota Nakazato
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School, Kanazawa, Ishikawa, Japan
| | - Daisuke Yamada
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School, Kanazawa, Ishikawa, Japan
| | - Saki Nakamura
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School, Kanazawa, Ishikawa, Japan
| | - Ayumi Kodama
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School, Kanazawa, Ishikawa, Japan
| | - Shigeki Shimba
- Department of Health Science, College of Pharmacy, Nihon University, Chiba, Japan
| | - Michihiro Mieda
- Department of Molecular Neuroscience and Integrative Physiology, Faculty of Medicine, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Kazuya Fukasawa
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School, Kanazawa, Ishikawa, Japan
| | - Kakeru Ozaki
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School, Kanazawa, Ishikawa, Japan
| | - Takashi Iezaki
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School, Kanazawa, Ishikawa, Japan
| | - Koichi Fujikawa
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School, Kanazawa, Ishikawa, Japan
| | - Yukio Yoneda
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School, Kanazawa, Ishikawa, Japan
| | - Rika Numano
- Department of Environmental and Life Sciences, and Electronics-Inspired Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology, Toyohashi, Aichi, Japan
| | - Akiko Hida
- Department of Psychophysiology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Hajime Tei
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Shu Takeda
- Department of Physiology and Cell Biology, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Eiichi Hinoi
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School, Kanazawa, Ishikawa, Japan
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22
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Kovacs CS. The Skeleton Is a Storehouse of Mineral That Is Plundered During Lactation and (Fully?) Replenished Afterwards. J Bone Miner Res 2017; 32:676-680. [PMID: 28177150 DOI: 10.1002/jbmr.3090] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 01/23/2017] [Accepted: 01/29/2017] [Indexed: 01/08/2023]
Abstract
During lactation, mammals resorb mineral from the maternal skeleton to provide calcium to milk. Rodents lose 25% to 35% of skeletal ash weight, ash calcium content, and bone mineral content as measured by dual-energy X-ray absorptiometry (DXA), and have compromised material properties of bone as assessed by crushing vertebrae and 3-point bend tests of femora or tibias. The strength, stiffness, and toughness of vertebrae, femora, and tibias are reduced by as much as 60%. The effects of lactation are not uniform throughout the skeleton, but instead resorption is much more marked in the trabecular-rich spine than in the appendicular skeleton or whole body. Women who breastfeed exclusively lose an average of 210 mg calcium in milk each day, whereas nursing of twins or triplets can double and triple the output of calcium. Clinical data are also consistent with skeletal calcium being released during lactation to provide much of the calcium needed for milk production. Lumbar spine bone mineral density (BMD), as assessed by DXA, declines by a mean of 5% to 10% among numerous studies during 3 to 6 months of exclusive lactation, whereas largely cortical sites (hip, forearm, whole body) show half that loss or no significant changes. Micro-CT of rodents and high-resolution peripheral quantitative computed tomography (HR-pQCT) imaging of women confirm that lactation causes microarchitectural deterioration of bone. These skeletal losses occur through two pathways: upregulated osteoclast-mediated bone resorption and osteocytic osteolysis, in which osteocytes remove mineral from their lacunae and pericanalicular spaces. After weaning, the skeleton is fully restored to its prior mineral content and strength in both animal models and humans, despite persistent microarchitectural changes observed in high-resolution imaging. Osteoblasts upregulate to lay down new osteoid, while osteocytes remineralize their surroundings. The factors that stimulate this post-weaning skeletal recovery remain unclear. In most studies, a history of lactation does not increase the risk, but may protect against, low BMD and fragility fractures. © 2017 American Society for Bone and Mineral Research.
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Affiliation(s)
- Christopher S Kovacs
- Faculty of Medicine-Endocrinology, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
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23
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Su N, Li X, Tang Y, Yang J, Wen X, Guo J, Tang J, Du X, Chen L. Deletion of FGFR3 in Osteoclast Lineage Cells Results in Increased Bone Mass in Mice by Inhibiting Osteoclastic Bone Resorption. J Bone Miner Res 2016; 31:1676-87. [PMID: 26990430 DOI: 10.1002/jbmr.2839] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 03/11/2016] [Accepted: 03/16/2016] [Indexed: 02/06/2023]
Abstract
Fibroblast growth factor receptor 3 (FGFR3) participates in bone remodeling. Both Fgfr3 global knockout and activated mice showed decreased bone mass with increased osteoclast formation or bone resorption activity. To clarify the direct effect of FGFR3 on osteoclasts, we specifically deleted Fgfr3 in osteoclast lineage cells. Adult mice with Fgfr3 deficiency in osteoclast lineage cells (mutant [MUT]) showed increased bone mass. In a drilled-hole defect model, the bone remodeling of the holed area in cortical bone was also impaired with delayed resorption of residual woven bone in MUT mice. In vitro assay demonstrated that there was no significant difference between the number of tartrate-resistant acid phosphatase (TRAP)-positive osteoclasts derived from wild-type and Fgfr3-deficient bone marrow monocytes, suggesting that FGFR3 had no remarkable effect on osteoclast formation. The bone resorption activity of Fgfr3-deficient osteoclasts was markedly decreased accompanying with downregulated expressions of Trap, Ctsk, and Mmp 9. The upregulated activity of osteoclastic bone resorption by FGF2 in vitro was also impaired in Fgfr3-deficient osteoclasts, indicating that FGFR3 may participate in the regulation of bone resorption activity of osteoclasts by FGF2. Reduced adhesion but not migration in osteoclasts with Fgfr3 deficiency may be responsible for the impaired bone resorption activity. Our study for the first time genetically shows the direct positive regulation of FGFR3 on osteoclastic bone resorption. © 2016 American Society for Bone and Mineral Research.
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Affiliation(s)
- Nan Su
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Xiaogang Li
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, China.,The 305 Hospital of Chinese People's Liberation Army, Beijing, China
| | - Yubin Tang
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, China.,Department of Emergency Treatment, Lanzhou General Hospital, Lanzhou Command, People's Liberation Army, Lanzhou, China
| | - Jing Yang
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Xuan Wen
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Jingyuan Guo
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Junzhou Tang
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Xiaolan Du
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Lin Chen
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, China
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24
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Huntley R, Davydova J, Petryk A, Billington CJ, Jensen ED, Mansky KC, Gopalakrishnan R. The Function of Twisted Gastrulation in Regulating Osteoclast Differentiation is Dependent on BMP Binding. J Cell Biochem 2016; 116:2239-46. [PMID: 25808976 DOI: 10.1002/jcb.25174] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 03/20/2015] [Indexed: 11/11/2022]
Abstract
Proper regulation of osteoclast (OCL) function is critical for normal bone homeostasis. Bone morphogenetic protein (BMP) signaling and its regulation have been shown to have direct effects on OCL differentiation and activity. One of the major modulators of BMP signaling in the extracellular space is the secreted protein twisted gastrulation (TWSG1), which can inhibit BMP signaling and OCL differentiation. In this study we examine specific N-terminal regions of TWSG1 protein that have been previously proposed as BMP binding sites to determine whether TWSG1 binding to BMPs is required for its inhibitory effects on OCLs. We demonstrate that overexpression of wild type TWSG1 suppresses osteoclastogenesis, while overexpression of mutant TWSG1 proteins (W66A and N80Q/N146Q mutants), which cannot bind BMPs, leads to increased BMP signaling, enhanced osteoclastogenesis, increased resorptive activity, and expression of OCL-specific genes. Our results show that BMP binding is required for TWSG1-mediated inhibition of OCL formation and function, and validate the critical functional regions within the TWSG1 protein for these interactions.
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Affiliation(s)
- Raphael Huntley
- Department of Diagnostic and Biological Sciences, University of Minnesota, Minneapolis, 55455, Minnesota
| | - Julia Davydova
- Department of Surgery, University of Minnesota, Minneapolis, 55455, Minnesota
| | - Anna Petryk
- Department of Pediatrics, University of Minnesota, Minneapolis, 55455, Minnesota.,Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, 55455, Minnesota
| | - Charles J Billington
- Department of Pediatrics, Children's National Medical Center, Washington DC, 20010
| | - Eric D Jensen
- Department of Diagnostic and Biological Sciences, University of Minnesota, Minneapolis, 55455, Minnesota
| | - Kim C Mansky
- Department of Developmental and Surgical Science, University of Minnesota, Minneapolis, 55455, Minnesota
| | - Rajaram Gopalakrishnan
- Department of Diagnostic and Biological Sciences, University of Minnesota, Minneapolis, 55455, Minnesota
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25
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Zhou L, Liu Q, Yang M, Wang T, Yao J, Cheng J, Yuan J, Lin X, Zhao J, Tickner J, Xu J. Dihydroartemisinin, an Anti-Malaria Drug, Suppresses Estrogen Deficiency-Induced Osteoporosis, Osteoclast Formation, and RANKL-Induced Signaling Pathways. J Bone Miner Res 2016; 31:964-74. [PMID: 26684711 DOI: 10.1002/jbmr.2771] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 12/01/2015] [Accepted: 12/16/2015] [Indexed: 12/19/2022]
Abstract
Osteoporosis is an osteolytic disease that features enhanced osteoclast formation and bone resorption. Identification of agents that can inhibit osteoclast formation and function is important for the treatment of osteoporosis. Dihydroartemisinin is a natural compound used to treat malaria but its role in osteoporosis is not known. Here, we found that dihydroartemisinin can suppress RANKL-induced osteoclastogenesis and bone resorption in a dose-dependent manner. Dihydroartemisinin inhibited the expression of osteoclast marker genes such as cathepsin K, calcitonin receptor, and tartrate-resistant acid phosphatase (TRAcP). Furthermore, dihydroartemisinin inhibited RANKL-induced NF-κB and NFAT activity. In addition, using an in vivo ovariectomized mouse model, we show that dihydroartemisinin is able to reverse the bone loss caused by ovariectomy. Together, this study shows that dihydroartemisinin attenuates bone loss in ovariectomized mice through inhibiting RANKL-induced osteoclast formation and function. This indicates that dihydroartemisinin, the first physiology or medicine nobel prize discovery of China, is a potential treatment option against osteolytic bone disease. © 2015 American Society for Bone and Mineral Research.
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Affiliation(s)
- Lin Zhou
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | - Qian Liu
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia.,Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Mingli Yang
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | - Tao Wang
- Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Jun Yao
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia.,Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Jianwen Cheng
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia.,Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Jinbo Yuan
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | - Xixi Lin
- Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Jinmin Zhao
- Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Jennifer Tickner
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | - Jiake Xu
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia.,Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, China
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26
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Zhu X, Gao J, Ng PY, Qin A, Steer JH, Pavlos NJ, Zheng MH, Dong Y, Cheng TS. Alexidine Dihydrochloride Attenuates Osteoclast Formation and Bone Resorption and Protects Against LPS-Induced Osteolysis. J Bone Miner Res 2016; 31:560-72. [PMID: 26363136 DOI: 10.1002/jbmr.2710] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 09/02/2015] [Accepted: 09/10/2015] [Indexed: 12/30/2022]
Abstract
Aseptic loosening and periprosthetic infection leading to inflammatory osteolysis is a major complication associated with total joint arthroplasty (TJA). The liberation of bacterial products and/or implant-derived wear particles activates immune cells that produce pro-osteoclastogenic cytokines that enhance osteoclast recruitment and activity, leading to bone destruction and osteolysis. Therefore, agents that prevent the inflammatory response and/or attenuate excessive osteoclast (OC) formation and bone resorption offer therapeutic potential by prolonging the life of TJA implants. Alexidine dihydrochloride (AD) is a bisbiguanide compound commonly used as an oral disinfectant and in contact lens solutions. It possesses antimicrobial, anti-inflammatory and anticancer properties; however, its effects on OC biology are poorly described. Here, we demonstrate that AD inhibits OC formation and bone resorption in vitro and exert prophylatic protection against LPS-induced osteolysis in vivo. Biochemical analysis demonstrated that AD suppressed receptor activator of NF-κB ligand (RANKL)-induced activation of mitogen-activated protein kinases (ERK, p38, and JNK), leading to the downregulation of NFATc1. Furthermore, AD disrupted F-actin ring formation and attenuated the ability of mature OC to resorb bone. Collectively, our findings suggest that AD may be a promising prophylactic anti-osteoclastic/resorptive agent for the treatment of osteolytic diseases caused by excessive OC formation and function.
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Affiliation(s)
- Xiang Zhu
- Centre for Orthopaedic Research, School of Surgery, University of Western Australia, Crawley, Australia.,Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Junjie Gao
- Centre for Orthopaedic Research, School of Surgery, University of Western Australia, Crawley, Australia
| | - Pei Y Ng
- Centre for Orthopaedic Research, School of Surgery, University of Western Australia, Crawley, Australia
| | - An Qin
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedics, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - James H Steer
- Pharmacology Unit, School of Medicine and Pharmacology, University of Western Australia, Crawley, Australia
| | - Nathan J Pavlos
- Centre for Orthopaedic Research, School of Surgery, University of Western Australia, Crawley, Australia
| | - Ming H Zheng
- Centre for Orthopaedic Research, School of Surgery, University of Western Australia, Crawley, Australia
| | - Yang Dong
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Tak S Cheng
- Centre for Orthopaedic Research, School of Surgery, University of Western Australia, Crawley, Australia
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27
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Stern PH, Alvares K. Antitumor agent cabozantinib decreases RANKL expression in osteoblastic cells and inhibits osteoclastogenesis and PTHrP-stimulated bone resorption. J Cell Biochem 2015; 115:2033-8. [PMID: 25042887 DOI: 10.1002/jcb.24879] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 07/09/2014] [Indexed: 11/08/2022]
Abstract
Cabozantinib, an inhibitor of vascular endothelial growth factor and hepatocyte growth factor signaling, decreases bone lesions in patients with prostate cancer. To determine direct effects of cabozantinib on bone, resorption in neonatal mouse bone organ culture and on gene expression, proliferation, and phenotypic markers in osteoblast and osteoclast cell lines were examined. Cabozantinib, 0.3 and 3 µM, prevented PTHrP-stimulated calcium release from neonatal mouse calvaria. Since the effect on resorption could reflect effects on osteoblasts to prevent osteoclast activation, or direct inhibition of osteoclasts, responses in osteoblastic and osteoclast precursor cell lines were examined. Twenty-four-hour treatment of osteoblastic MC3T3-E1 cells with 3 µM cabozantinib decreased expression of receptor activator of NFkB ligand (RANKL) and alkaline phosphatase. Forty-eight-hour treatment of MC3T3-E1 cells with 3 µM cabozantinib inhibited cell proliferation and decreased MTT activity. Effects on alkaline phosphatase activity were biphasic, with small stimulatory effects at concentrations below 3 µM. When RAW 264.7 osteoclast precursor cells differentiated with 20 ng/ml RANKL were co-treated for 24 h with 3 µM cabozantinib, expression of RANK, TRAP, cathepsin K, alpha v or beta 3 integrin, or NFATc1 were unaffected. Five-day treatment of RANKL-treated RAW 264.7 cells with 3 µM cabozantinib decreased TRAP and MTT activity. The results suggest that the osteoblast could be the initial target, with subsequent direct and indirect effects on osteoclastogenesis leading to decreased resorption. The multiple effects of cabozantinib on the cell microenvironment of bone are consistent with its effectiveness in reducing lesions from prostate cancer metastases.
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Affiliation(s)
- Paula H Stern
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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28
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Razi H, Birkhold AI, Weinkamer R, Duda GN, Willie BM, Checa S. Aging Leads to a Dysregulation in Mechanically Driven Bone Formation and Resorption. J Bone Miner Res 2015; 30:1864-73. [PMID: 25857303 DOI: 10.1002/jbmr.2528] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 03/23/2015] [Accepted: 04/05/2015] [Indexed: 11/11/2022]
Abstract
Physical activity is essential to maintain skeletal mass and structure, but its effect seems to diminish with age. To test the hypothesis that bone becomes less sensitive to mechanical strain with age, we used a combined in vivo/in silico approach. We investigated how maturation and aging influence the mechanical regulation of bone formation and resorption to 2 weeks of noninvasive in vivo controlled loading in mice. Using 3D in vivo morphometrical assessment of longitudinal microcomputed tomography images, we quantified sites in the mouse tibia where bone was deposited or resorbed in response to controlled in vivo loading. We compared the (re)modeling events (formation/resorption/quiescent) to the mechanical strains induced at these sites (predicted using finite element analysis). Mice of all age groups (young, adult, and elderly) responded to loading with increased formation and decreased resorption, preferentially at high strains. Low strains were associated with no anabolic response in adult and elderly mice, whereas young animals showed a strong response. Adult animals showed a clear separation between strain ranges where formation and resorption occurred but without an intermediate quiescent "lazy zone". This strain threshold disappeared in elderly mice, as mechanically induced (re)modeling became dysregulated, apparent in an inability to inhibit resorption or initiate formation. Contrary to what is generally believed until now, aging does not shift the mechanical threshold required to initiate formation or resorption, but rather blurs its specificity. These data suggest that pharmaceutical strategies augmenting physical exercise should consider this dysfunction in the mechanical regulation of bone (re)modeling to more effectively combat age-related bone loss.
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Affiliation(s)
- Hajar Razi
- Julius Wolff Institute, Charité-Universitätsmedizin, Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Berlin, Germany
| | - Annette I Birkhold
- Julius Wolff Institute, Charité-Universitätsmedizin, Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Berlin, Germany
| | - Richard Weinkamer
- Max Planck Institute of Colloids and Interfaces, Department of Biomaterials, Potsdam, Germany
| | - Georg N Duda
- Julius Wolff Institute, Charité-Universitätsmedizin, Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Berlin, Germany
| | - Bettina M Willie
- Julius Wolff Institute, Charité-Universitätsmedizin, Berlin, Germany
| | - Sara Checa
- Julius Wolff Institute, Charité-Universitätsmedizin, Berlin, Germany
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29
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Araujo-Pires AC, Vieira AE, Francisconi CF, Biguetti CC, Glowacki A, Yoshizawa S, Campanelli AP, Trombone APF, Sfeir CS, Little SR, Garlet GP. IL-4/CCL22/CCR4 axis controls regulatory T-cell migration that suppresses inflammatory bone loss in murine experimental periodontitis. J Bone Miner Res 2015; 30:412-22. [PMID: 25264308 PMCID: PMC4542048 DOI: 10.1002/jbmr.2376] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 08/27/2014] [Accepted: 08/29/2014] [Indexed: 12/15/2022]
Abstract
Inflammatory bone resorption is a hallmark of periodontitis, and Tregs and Th2 cells are independently associated with disease progression attenuation. In this study, we employed an infection-triggered inflammatory osteolysis model to investigate the mechanisms underlying Treg and Th2 cell migration and the impact on disease outcome. Aggregatibacter actinomycetemcomitans-infected C57Bl/6 (wild-type [WT]) mice develop an intense inflammatory reaction and alveolar bone resorption, and Treg and Th2 cell migration is temporally associated with disease progression attenuation. Tregs extracted from the lesions preferentially express CCR4 and CCR8, whereas Th2 cells express CCR3, CCR4, and CCR8. The absence of CCR5 and CCR8 did not significantly impact the migration of Tregs and Th2 cells or affect the disease outcome. CCR4KO mice presented a minor reduction in Th2 cells in parallel with major impairment of Treg migration, which was associated with increased inflammatory bone loss and higher proinflammatory and osteoclastogenic cytokine levels. The blockade of the CCR4 ligand CCL22 in WT mice resulted in an increased inflammatory bone loss phenotype similar to that in the CCR4KO strain. Adoptive transfer of CCR4(+) Tregs to the CCR4KO strain revert the increased disease phenotype to WT mice-like levels; also, the in situ production of CCL22 in the lesions is mandatory for Tregs migration and the consequent bone loss arrest. The local release of exogenous CCL22 provided by poly(lactic-co-glycolic acid) (PLGA) microparticles promotes migration of Tregs and disease arrest in the absence of endogenous CCL22 in the IL-4KO strain, characterized by the lack of endogenous CCL22 production, defective migration of Tregs, and exacerbated bone loss. In summary, our results show that the IL-4/CCL22/CCR4 axis is involved in the migration of Tregs to osteolytic lesion sites, and attenuates development of lesions by inhibiting inflammatory migration and the production of proinflammatory and osteoclastogenic mediators.
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Affiliation(s)
- Ana Claudia Araujo-Pires
- Department of Biological Sciences, School of Dentistry of Bauru, Sao Paulo University (FOB/USP), Bauru, SP, Brazil
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30
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Téletchéa S, Stresing V, Hervouet S, Baud'huin M, Heymann MF, Bertho G, Charrier C, Ando K, Heymann D. Novel RANK antagonists for the treatment of bone-resorptive disease: theoretical predictions and experimental validation. J Bone Miner Res 2014; 29:1466-77. [PMID: 24390798 DOI: 10.1002/jbmr.2170] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 12/17/2013] [Accepted: 01/01/2013] [Indexed: 12/15/2022]
Abstract
Receptor activator of nuclear factor-κB (RANK) and RANK ligand (RANKL) play a pivotal role in bone metabolism, and selective targeting of RANK signaling has become a promising therapeutic strategy in the management of resorptive bone diseases. Existing antibody-based therapies and novel inhibitors currently in development were designed to target the ligand, rather than the membrane receptor expressed on osteoclast precursors. We describe here an alternative approach to designing small peptides able to specifically bind to the hinge region of membrane RANK responsible for the conformational change upon RANKL association. A nonapeptide generated by this method was validated for its biological activity in vitro and in vivo and served as a lead compound for the generation of a series of peptide RANK antagonists derived from the original sequence. Our study presents a structure- and knowledge-based strategy for the design of novel effective and affordable small peptide inhibitors specifically targeting the receptor RANK and opens a new therapeutic opportunity for the treatment of resorptive bone disease.
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Affiliation(s)
- Stéphane Téletchéa
- INSERM, UMR 957, Equipe labellisée LIGUE 2012, Université de Nantes, Laboratory of the Physiopathology of Bone Resorption and Therapy of Primary Bone Tumors (LPRO), Nantes, France
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31
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Kemp JP, Sayers A, Paternoster L, Evans DM, Deere K, St Pourcain B, Timpson NJ, Ring SM, Lorentzon M, Lehtimäki T, Eriksson J, Kähönen M, Raitakari O, Laaksonen M, Sievänen H, Viikari J, Lyytikäinen LP, Smith GD, Fraser WD, Vandenput L, Ohlsson C, Tobias JH. Does bone resorption stimulate periosteal expansion? A cross-sectional analysis of β-C-telopeptides of type I collagen (CTX), genetic markers of the RANKL pathway, and periosteal circumference as measured by pQCT. J Bone Miner Res 2014; 29:1015-24. [PMID: 24014423 PMCID: PMC4138988 DOI: 10.1002/jbmr.2093] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2013] [Revised: 08/30/2013] [Accepted: 09/03/2013] [Indexed: 01/18/2023]
Abstract
We hypothesized that bone resorption acts to increase bone strength through stimulation of periosteal expansion. Hence, we examined whether bone resorption, as reflected by serum β-C-telopeptides of type I collagen (CTX), is positively associated with periosteal circumference (PC), in contrast to inverse associations with parameters related to bone remodeling such as cortical bone mineral density (BMDC ). CTX and mid-tibial peripheral quantitative computed tomography (pQCT) scans were available in 1130 adolescents (mean age 15.5 years) from the Avon Longitudinal Study of Parents and Children (ALSPAC). Analyses were adjusted for age, gender, time of sampling, tanner stage, lean mass, fat mass, and height. CTX was positively related to PC (β=0.19 [0.13, 0.24]) (coefficient=SD change per SD increase in CTX, 95% confidence interval)] but inversely associated with BMDC (β=-0.46 [-0.52,-0.40]) and cortical thickness [β=-0.11 (-0.18, -0.03)]. CTX was positively related to bone strength as reflected by the strength-strain index (SSI) (β=0.09 [0.03, 0.14]). To examine the causal nature of this relationship, we then analyzed whether single-nucleotide polymorphisms (SNPs) within key osteoclast regulatory genes, known to reduce areal/cortical BMD, conversely increase PC. Fifteen such genetic variants within or proximal to genes encoding receptor activator of NF-κB (RANK), RANK ligand (RANKL), and osteoprotegerin (OPG) were identified by literature search. Six of the 15 alleles that were inversely related to BMD were positively related to CTX (p<0.05 cut-off) (n=2379). Subsequently, we performed a meta-analysis of associations between these SNPs and PC in ALSPAC (n=3382), Gothenburg Osteoporosis and Obesity Determinants (GOOD) (n=938), and the Young Finns Study (YFS) (n=1558). Five of the 15 alleles that were inversely related to BMD were positively related to PC (p<0.05 cut-off). We conclude that despite having lower BMD, individuals with a genetic predisposition to higher bone resorption have greater bone size, suggesting that higher bone resorption is permissive for greater periosteal expansion.
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Affiliation(s)
- John P Kemp
- MRC Centre for Causal Analyses in Translational Epidemiology, University of Bristol, Bristol, UK; School of Social and Community Medicine, University of Bristol, Bristol, UK
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32
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Nagai Y, Osawa K, Fukushima H, Tamura Y, Aoki K, Ohya K, Yasuda H, Hikiji H, Takahashi M, Seta Y, Seo S, Kurokawa M, Kato S, Honda H, Nakamura I, Maki K, Jimi E. p130Cas, Crk-associated substrate, plays important roles in osteoclastic bone resorption. J Bone Miner Res 2013; 28:2449-62. [PMID: 23526406 DOI: 10.1002/jbmr.1936] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 02/18/2013] [Accepted: 03/04/2013] [Indexed: 11/08/2022]
Abstract
p130Cas, Crk-associated substrate (Cas), is an adaptor/scaffold protein that plays a central role in actin cytoskeletal reorganization. We previously reported that p130Cas is not tyrosine-phosphorylated in osteoclasts derived from Src-deficient mice, which are congenitally osteopetrotic, suggesting that p130Cas serves as a downstream molecule of c-Src and is involved in osteoclastic bone resorption. However, the physiological role of p130Cas in osteoclasts has not yet been confirmed because the p130Cas-deficient mice displayed embryonic lethality. Osteoclast-specific p130Cas conditional knockout (p130Cas(ΔOCL-) ) mice exhibit a high bone mass phenotype caused by defect in multinucleation and cytoskeleton organization causing bone resorption deficiency. Bone marrow cells from p130Cas(ΔOCL-) mice were able to differentiate into osteoclasts and wild-type cells in vitro. However, osteoclasts from p130Cas(ΔOCL-) mice failed to form actin rings and resorb pits on dentine slices. Although the initial events of osteoclast attachment, such as β3-integrin or Src phosphorylation, were intact, the Rac1 activity that organizes the actin cytoskeleton was reduced, and its distribution was disrupted in p130Cas(ΔOCL-) osteoclasts. Dedicator of cytokinesis 5 (Dock5), a Rho family guanine nucleotide exchanger, failed to associate with Src or Pyk2 in osteoclasts in the absence of p130Cas. These results strongly indicate that p130Cas plays pivotal roles in osteoclastic bone resorption.
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Affiliation(s)
- Yoshie Nagai
- Division of Molecular Signaling and Biochemistry, Department of Health Improvement, Kyushu Dental University, Fukuoka, Japan; Division of Developmental Stomatognathic Function Science, Department of Health Improvement, Kyushu Dental University, Fukuoka, Japan
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33
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Kim J, Yang J, Park OJ, Kang SS, Kim WS, Kurokawa K, Yun CH, Kim HH, Lee BL, Han SH. Lipoproteins are an important bacterial component responsible for bone destruction through the induction of osteoclast differentiation and activation. J Bone Miner Res 2013; 28:2381-91. [PMID: 23633269 DOI: 10.1002/jbmr.1973] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 03/16/2013] [Accepted: 04/15/2013] [Indexed: 01/20/2023]
Abstract
Bacterial infection can cause inflammatory bone diseases accompanied by the bone destruction resulting from excess generation of osteoclasts. Although lipoproteins are one of the major immunostimulating components of bacteria, little is known about their effects on bone metabolism. In this study, we investigated the role of lipoproteins in bacteria-induced bone destruction using Staphylococcus aureus wild type, its lipoprotein-deficient mutant, and synthetic lipopeptides Pam2CSK4 and Pam3CSK4 known to mimic bacterial lipoproteins. Formaldehyde-inactivated S. aureus or the synthetic lipopeptides induced severe bone loss in the femurs of mice after intraperitoneal administration and in a calvarial bone implantation model, whereas the lipoprotein-deficient S. aureus did not show such effects. Mechanism studies further identified three action mechanisms for the lipopeptide-induced osteoclast differentiation and bone resorption via (i) enhancement of osteoclast differentiation through Toll-like receptor 2 and MyD88-dependent signaling pathways; (ii) induction of pro-inflammatory cytokines, TNF-α and IL-6; and (iii) upregulation of RANKL expression with downregulation of osteoprotegerin expression in osteoblasts. Taken together, these results suggest that lipoprotein might be an important bacterial component responsible for bone destruction during bacterial infections through augmentation of osteoclast differentiation and activation.
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Affiliation(s)
- Jiseon Kim
- Department of Oral Microbiology and Immunology, DRI, and BK21 Program, School of Dentistry, Seoul National University, Seoul, Republic of Korea
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Xing W, Liu J, Cheng S, Vogel P, Mohan S, Brommage R. Targeted disruption of leucine-rich repeat kinase 1 but not leucine-rich repeat kinase 2 in mice causes severe osteopetrosis. J Bone Miner Res 2013; 28:1962-74. [PMID: 23526378 PMCID: PMC9528686 DOI: 10.1002/jbmr.1935] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 02/22/2013] [Accepted: 03/11/2013] [Indexed: 01/01/2023]
Abstract
To assess the roles of Lrrk1 and Lrrk2, we examined skeletal phenotypes in Lrrk1 and Lrrk2 knockout (KO) mice. Lrrk1 KO mice exhibit severe osteopetrosis caused by dysfunction of multinucleated osteoclasts, reduced bone resorption in endocortical and trabecular regions, and increased bone mineralization. Lrrk1 KO mice have lifelong accumulation of bone and respond normally to the anabolic actions of teriparatide treatment, but are resistant to ovariectomy-induced bone boss. Precursors derived from Lrrk1 KO mice differentiate into multinucleated cells in response to macrophage colony-stimulating factor (M-CSF)/receptor activator of NF-κB ligand (RANKL) treatment, but these cells fail to form peripheral sealing zones and ruffled borders, and fail to resorb bone. The phosphorylation of cellular Rous sarcoma oncogene (c-Src) at Tyr-527 is significantly elevated whereas at Tyr-416 is decreased in Lrrk1-deficient osteoclasts. The defective osteoclast function is partially rescued by overexpression of the constitutively active form of Y527F c-Src. Immunoprecipitation assays in osteoclasts detected a physical interaction of Lrrk1 with C-terminal Src kinase (Csk). Lrrk2 KO mice do not show obvious bone phenotypes. Precursors derived from Lrrk2 KO mice differentiate into functional multinucleated osteoclasts. Our finding of osteopetrosis in Lrrk1 KO mice provides convincing evidence that Lrrk1 plays a critical role in negative regulation of bone mass in part through modulating the c-Src signaling pathway in mice.
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Affiliation(s)
- Weirong Xing
- Musculoskeletal Disease Center, Jerry L. Pettis Memorial VA Medical Center, Loma Linda, CA, USA
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35
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BENTZEL CJ, CARBONE PP, ROSENBERG L. THE EFFECT OF PREDNISONE ON CALCIUM METABOLISM AND CA47 KINETICS IN PATIENTS WITH MULTIPLE MYELOMA AND HYPERCALCEMIA. J Clin Invest 1996; 43:2132-45. [PMID: 14223925 PMCID: PMC442001 DOI: 10.1172/jci105087] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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36
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37
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KLEIN M, VILLANUEVA AR, FROST HM. A QUANTITATIVE HISTOLOGICAL STUDY OF RIB FROM 18 PATIENTS TREATED WITH ADRENAL CORTICAL STEROIDS. ACTA ACUST UNITED AC 1996; 35:171-84. [PMID: 14274671 DOI: 10.3109/17453676508989351] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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38
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39
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40
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41
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THEILADE J. AN EVALUATION OF THE RELIABILITY OF RADIOGRAPHS IN THE MEASUREMENT OF BONE LOSS IN PERIODONTAL DISEASE. Univ Toronto Undergrad Dent J 1965; 2:19-27. [PMID: 14316042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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42
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EPKER BN, FROST HM. THE DIRECTION OF TRANSVERSE DRIFT OF ACTIVELY FORMING OSTEONS IN HUMAN RIB CORTEX. J Bone Joint Surg Am 1965; 47:1211-5. [PMID: 14337779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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43
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POLIMANTI E, FABIANI S. [CLINICAL CONTRIBUTION TO THE STUDY OF ULCERO-MUTILATING JOINT DISEASE]. Minerva Med 1965; 56:2572-4. [PMID: 14348649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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44
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CHENEY WD. ACRO-OSTEOLYSIS. Am J Roentgenol Radium Ther Nucl Med 1965; 94:595-607. [PMID: 14303950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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45
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TWEEDLE JA. THE EFFECT OF LOCAL HEAT ON TOOTH MOVEMENT. Angle Orthod 1965; 35:218-25. [PMID: 14331021 DOI: 10.1043/0003-3219(1965)035<0218:teolho>2.0.co;2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023] Open
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46
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HALABY FA, DISALVO EI. OSTEOLYSIS: A COMPLICATION OF TRAUMA. REPORT OF 2 CASES. Am J Roentgenol Radium Ther Nucl Med 1965; 94:591-4. [PMID: 14303949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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47
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OWEN J, COLE Y. BONE METASTASES IN ADVANCED BREAST CANCER: RADIOLOGICAL APPEARANCES FOLLOWING HYPOPHYSECTOMY. Clin Radiol 1965; 16:295-301. [PMID: 14324894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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48
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49
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RIGGS BL, KELLY PJ, JOWSEY J, KEATING FR. SKELETAL ALTERATIONS IN HYPERPARATHYROIDISM: DETERMINATION OF BONE FORMATION, RESORPTION AND MORPHOLOGIC CHANGES BY MICRORADIOGRAPHY. J Clin Endocrinol Metab 1965; 25:777-83. [PMID: 14296262 DOI: 10.1210/jcem-25-6-777] [Citation(s) in RCA: 41] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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JOWSEY J, PHIL D, KELLY PJ, RIGGS BL, BIANCO AJ, SCHOLZ DA, GERSHON-COHEN J. QUANTITATIVE MICRORADIOGRAPHIC STUDIES OF NORMAL AND OSTEOPOROTIC BONE. J Bone Joint Surg Am 1965; 47:785-806. [PMID: 14302381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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