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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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2
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Li C, Ying S, Wu X, Zhu T, Zhou Q, Zhang Y, Liu Y, Zhu R, Hu H. CTRP1 Aggravates Cardiac Fibrosis by Regulating The NOX2/P38 Pathway in Macrophages. Cell J 2022; 24:732-740. [PMID: 36527345 PMCID: PMC9790075 DOI: 10.22074/cellj.2022.557327.1043] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Indexed: 01/05/2023]
Abstract
OBJECTIVE C1q/TNF-related proteins 1 (CTRP1) is a recently identified adiponectin associated with obesity-linked disorders and adverse cardiovascular events. The effect of CTRP1 on cardiac fibrosis has not yet been fully elucidated; thus, we aimed to explore this association. MATERIALS AND METHODS In this experimental study, a mouse model of cardiac fibrosis was established by administering isoproterenol (ISO) (subcutaneously injecting 10 mg/kg/day for 3 days and then 5 mg/kg/day for 11 days). Mice were also injected with recombinant CTRP1 protein (200 μg/kg) 14 days after the final ISO administration. Adult mouse fibroblasts were isolated and stimulated with transforming growth factor (TGF) β1, followed by treatment with recombinant CTRP1. Primary bone marrow-derived macrophages were isolated from C57BL/6J mice and treated with recombinant CTRP1 as well. RESULTS CTRP1 level was increased in mouse plasma and heart tissue 2 weeks after ISO injection. Our findings indicated that recombinant CTRP1 injection aggravated ISO-induced cardiac fibrosis and dysfunction. However, recombinant CTRP1 did not alter TGFβ1-induced fibroblast proliferation and activation or collagen transcription. Recombinant CTRP1 exacerbated ISO-induced macrophage infiltration and inflammatory response. We determined that macrophages treated with recombinant CTRP1 showed increased pro-inflammatory cytokine release. Fibroblasts co-cultured with macrophages treated with recombinant CTRP1 showed increased proliferation and collagen transcription. We also found that CTRP1 upregulated the NADPH oxidase 2 (NOX2)/p38 pathway in macrophages. When we inhibited p38 signaling, the pro-inflammatory effect of CTRP1 on macrophages was counteracted. Fibroblasts co-cultured with macrophages treated with a p38 inhibitor also showed limited proliferation and collagen transcription. CONCLUSION Cardiac fibrosis was aggravated with the activation of the NOX2/p38 pathway in macrophages after CTRP1 treatment.
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Affiliation(s)
- Chenyu Li
- Department of Cardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei,
P.R. China
| | - Shaozhen Ying
- Department of Cardiology, Jiangxi provincial People’s Hospital, Affiliated to Nanchang University, Nanchang, Jiangxi, China
| | - Xiaolin Wu
- Department of Cardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei,
P.R. China
| | - Tongjian Zhu
- Department of Cardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei,
P.R. China
| | - Qing Zhou
- Department of Cardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei,
P.R. China
| | - Yue Zhang
- Department of Cardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei,
P.R. China
| | - Yongsheng Liu
- Department of Cardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei,
P.R. China
| | - Rui Zhu
- Department of Cardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei,
P.R. China
| | - He Hu
- Department of Cardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei,
P.R. China,Department of CardiologyXiangyang Central HospitalAffiliated Hospital of Hubei University of Arts and
ScienceXiangyangHubeiP.R. China
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3
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Tosun B, Wolff LI, Houben A, Nutt S, Hartmann C. Osteoclasts and Macrophages-Their Role in Bone Marrow Cavity Formation During Mouse Embryonic Development. J Bone Miner Res 2022; 37:1761-1774. [PMID: 35689447 DOI: 10.1002/jbmr.4629] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 01/20/2022] [Revised: 05/19/2022] [Accepted: 06/04/2022] [Indexed: 11/09/2022]
Abstract
The formation of the bone marrow cavity is a prerequisite for endochondral ossification. In reviews and textbooks, it is occasionally reported that osteoclasts are essential for bone marrow cavity formation removing hypertrophic chondrocytes. Mice lacking osteoclasts or having functionally defective osteoclasts have osteopetrotic bones, yet they still form a bone marrow cavity. Here, we investigated the role of osteoclasts and macrophages in bone marrow cavity formation during embryogenesis. Macrophages can assist osteoclasts in matrix removal by phagocytosing resorption byproducts. Rank-deficient mice, lacking osteoclasts, and Pu.1-deficient mice, lacking monocytes, macrophages, and osteoclasts, displayed a delay in bone marrow cavity formation and a lengthening of the zone of hypertrophic chondrocytes. F4/80-positive monocyte/macrophage numbers increased by about fourfold in the bone marrow cavity of E18.5 Rank-deficient mice. Based on lineage-tracing experiments, the majority of the excess F4/80 cells were derived from definitive hematopoietic precursors of the fetal liver. In long bones of both Rank-/- and Pu.1-/- specimens, Mmp9-positive cells were still present. In addition to monocytes, macrophages, and osteoclasts, Ctsb-positive septoclasts were lost in Pu.1-/- specimens. The mineralization pattern was altered in Rank-/- and Pu.1-/- specimens, revealing a significant rise in transverse-oriented mineralized structures. Taken together, our findings imply that early on during bone marrow cavity formation, osteoclasts facilitate the entry of blood vessels and later the turnover of hypertrophic chondrocytes, whereas macrophages appear to play no major role. Furthermore, the absence of septoclasts in Pu.1-/- specimens suggests that septoclasts are either derived from Pu.1-dependent precursors or require PU.1 activity for their differentiation. © 2022 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Benjamin Tosun
- Institute of Musculoskeletal Medicine, Department of Bone and Skeletal Research, Medical Faculty of the Westphalian Wilhelms University, Münster, Germany
| | - Lena Ingeborg Wolff
- Institute of Musculoskeletal Medicine, Department of Bone and Skeletal Research, Medical Faculty of the Westphalian Wilhelms University, Münster, Germany
| | - Astrid Houben
- Institute of Musculoskeletal Medicine, Department of Bone and Skeletal Research, Medical Faculty of the Westphalian Wilhelms University, Münster, Germany
| | - Stephen Nutt
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Australia
| | - Christine Hartmann
- Institute of Musculoskeletal Medicine, Department of Bone and Skeletal Research, Medical Faculty of the Westphalian Wilhelms University, Münster, Germany
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4
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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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5
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Mohamad SF, Gunawan A, Blosser R, Childress P, Aguilar-Perez A, Ghosh J, Hong JM, Liu J, Kanagasabapathy D, Kacena MA, Srour EF, Bruzzaniti A. Neonatal Osteomacs and Bone Marrow Macrophages Differ in Phenotypic Marker Expression and Function. J Bone Miner Res 2021; 36:1580-1593. [PMID: 33900648 DOI: 10.1002/jbmr.4314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 08/18/2020] [Revised: 04/13/2021] [Accepted: 04/17/2021] [Indexed: 01/27/2023]
Abstract
Osteomacs (OM) are specialized bone-resident macrophages that are a component of the hematopoietic niche and support bone formation. Also located in the niche are a second subset of macrophages, namely bone marrow-derived macrophages (BM Mφ). We previously reported that a subpopulation of OM co-express both CD166 and CSF1R, the receptor for macrophage colony-stimulating factor (MCSF), and that OM form more bone-resorbing osteoclasts than BM Mφ. Reported here are single-cell quantitative RT-PCR (qRT-PCR), mass cytometry (CyTOF), and marker-specific functional studies that further identify differences between OM and BM Mφ from neonatal C57Bl/6 mice. Although OM express higher levels of CSF1R and MCSF, they do not respond to MCSF-induced proliferation, in contrast to BM Mφ. Moreover, receptor activator of NF-κB ligand (RANKL), without the addition of MCSF, was sufficient to induce osteoclast formation in OM but not BM Mφ cultures. OM express higher levels of CD166 than BM Mφ, and we found that osteoclast formation by CD166-/- OM was reduced compared with wild-type (WT) OM, whereas CD166-/- BM Mφ showed enhanced osteoclast formation. CD110/c-Mpl, the receptor for thrombopoietin (TPO), was also higher in OM, but TPO did not alter OM-derived osteoclast formation, whereas TPO stimulated BM Mφ osteoclast formation. CyTOF analyses demonstrated OM uniquely co-express CD86 and CD206, markers of M1 and M2 polarized macrophages, respectively. OM performed equivalent phagocytosis in response to LPS or IL-4/IL-10, which induce polarization to M1 and M2 subtypes, respectively, whereas BM Mφ were less competent at phagocytosis when polarized to the M2 subtype. Moreover, in contrast to BM Mφ, LPS treatment of OM led to the upregulation of CD80, an M1 marker, as well as IL-10 and IL-6, known anti-inflammatory cytokines. Overall, these data reveal that OM and BM Mφ are distinct subgroups of macrophages, whose phenotypic and functional differences in proliferation, phagocytosis, and osteoclast formation may contribute physiological specificity during health and disease. © 2021 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Safa F Mohamad
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Andrea Gunawan
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Rachel Blosser
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Paul Childress
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Alexandra Aguilar-Perez
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA
| | - Joydeep Ghosh
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jung Min Hong
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA
| | - Jianyun Liu
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Deepa Kanagasabapathy
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Melissa A Kacena
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Edward F Srour
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Angela Bruzzaniti
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA
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6
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Das A, Wang X, Kang J, Coulter A, Shetty AC, Bachu M, Brooks SR, Dell'Orso S, Foster BL, Fan X, Ozato K, Somerman MJ, Thumbigere-Math V. Monocyte Subsets With High Osteoclastogenic Potential and Their Epigenetic Regulation Orchestrated by IRF8. J Bone Miner Res 2021; 36:199-214. [PMID: 32804442 PMCID: PMC8168257 DOI: 10.1002/jbmr.4165] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 06/26/2020] [Revised: 07/21/2020] [Accepted: 08/05/2020] [Indexed: 12/24/2022]
Abstract
Osteoclasts (OCs) are bone-resorbing cells formed by the serial fusion of monocytes. In mice and humans, three distinct subsets of monocytes exist; however, it is unclear if all of them exhibit osteoclastogenic potential. Here we show that in wild-type (WT) mice, Ly6Chi and Ly6Cint monocytes are the primary source of OC formation when compared to Ly6C- monocytes. Their osteoclastogenic potential is dictated by increased expression of signaling receptors and activation of preestablished transcripts, as well as de novo gain in enhancer activity and promoter changes. In the absence of interferon regulatory factor 8 (IRF8), a transcription factor important for myelopoiesis and osteoclastogenesis, all three monocyte subsets are programmed to display higher osteoclastogenic potential. Enhanced NFATc1 nuclear translocation and amplified transcriptomic and epigenetic changes initiated at early developmental stages direct the increased osteoclastogenesis in Irf8-deficient mice. Collectively, our study provides novel insights into the transcription factors and active cis-regulatory elements that regulate OC differentiation. © 2020 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Amitabh Das
- Division of Periodontology, University of Maryland School of Dentistry, Baltimore, MD, USA.,Laboratory of Oral and Connective Tissue Biology, National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), Bethesda, MD, USA
| | - Xiaobei Wang
- Division of Periodontology, University of Maryland School of Dentistry, Baltimore, MD, USA.,Laboratory of Oral and Connective Tissue Biology, National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), Bethesda, MD, USA
| | - Jessica Kang
- Division of Periodontology, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - Alyssa Coulter
- Laboratory of Oral and Connective Tissue Biology, National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), Bethesda, MD, USA
| | - Amol C Shetty
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Mahesh Bachu
- Molecular Genetics of Immunity Section, Division of Developmental Biology, National Institute of Child Health and Human Development (NICHD), Bethesda, MD, USA.,Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, USA
| | - Stephen R Brooks
- Biodata Mining and Discovery Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), Bethesda, MD, USA
| | - Stefania Dell'Orso
- Biodata Mining and Discovery Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), Bethesda, MD, USA
| | - Brian L Foster
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, USA
| | - Xiaoxuan Fan
- Flow Cytometry Shared Service, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Keiko Ozato
- Molecular Genetics of Immunity Section, Division of Developmental Biology, National Institute of Child Health and Human Development (NICHD), Bethesda, MD, USA
| | - Martha J Somerman
- Laboratory of Oral and Connective Tissue Biology, National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), Bethesda, MD, USA
| | - Vivek Thumbigere-Math
- Division of Periodontology, University of Maryland School of Dentistry, Baltimore, MD, USA.,Laboratory of Oral and Connective Tissue Biology, National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), Bethesda, MD, USA
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7
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Xiao L, Zhou Y, Zhu L, Yang S, Huang R, Shi W, Peng B, Xiao Y. SPHK1-S1PR1-RANKL Axis Regulates the Interactions Between Macrophages and BMSCs in Inflammatory Bone Loss. J Bone Miner Res 2018; 33:1090-1104. [PMID: 29377379 DOI: 10.1002/jbmr.3396] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [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: 08/20/2017] [Revised: 01/04/2018] [Accepted: 01/13/2018] [Indexed: 01/29/2023]
Abstract
Accumulating evidence indicates that the immune and skeletal systems interact with each other through various regulators during the osteoclastogenic process. Among these regulators, the bioactive lipid sphingosine-1-phosphate (S1P), which is synthesized by sphingosine kinase 1/2 (SPHK1/2), has recently been recognized to play a role in immunity and bone remodeling through its receptor sphingosine-1-phosphate receptor 1 (S1PR1). However, little is known regarding the potential role of S1PR1 signaling in inflammatory bone loss. We observed that SPHK1 and S1PR1 were upregulated in human apical periodontitis, accompanied by macrophage infiltration and enhanced expression of receptor activator of NF-κB ligand (RANKL, an indispensable factor in osteoclastogenesis and bone resorption) and increased numbers of S1PR1-RANKL double-positive cells in lesion tissues. Using an in vitro co-culture model of macrophages and bone marrow stromal cells (BMSCs), it was revealed that in the presence of lipopolysaccharide (LPS) stimulation, macrophages could significantly induce SPHK1 activity, which resulted in activated S1PR1 in BMSCs. The activated S1P-S1PR1 signaling was responsible for the increased RANKL production in BMSCs, as S1PR1-blockage abolished this effect. Applying a potent S1P-S1PR1 signaling modulator, Fingolimod (FTY720), in a Wistar rat apical periodontitis model effectively prevented bone lesions in vivo via downregulation of RANKL production, osteoclastogenesis, and bone resorption. Our data unveiled the regulatory role of SPHK1-S1PR1-RANKL axis in inflammatory bone lesions and proposed a potential therapeutic intervention by targeting this cell-signaling pathway to prevent bone loss. © 2018 American Society for Bone and Mineral Research.
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Affiliation(s)
- Lan Xiao
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove Campus, Brisbane, Australia.,The Australia-China Centre for Tissue Engineering and Regenerative Medicine (ACCTERM), Queensland University of Technology, Kelvin Grove Campus, Brisbane, Australia.,The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yinghong Zhou
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove Campus, Brisbane, Australia.,The Australia-China Centre for Tissue Engineering and Regenerative Medicine (ACCTERM), Queensland University of Technology, Kelvin Grove Campus, Brisbane, Australia
| | - Lingxin Zhu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Shasha Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Rong Huang
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove Campus, Brisbane, Australia
| | - Wei Shi
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove Campus, Brisbane, Australia
| | - Bin Peng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yin Xiao
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove Campus, Brisbane, Australia.,The Australia-China Centre for Tissue Engineering and Regenerative Medicine (ACCTERM), Queensland University of Technology, Kelvin Grove Campus, Brisbane, Australia.,The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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8
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Lou J, Wang Y, Zhang Z, Qiu W. Activation of MMPs in Macrophages by Mycobacterium tuberculosis via the miR-223-BMAL1 Signaling Pathway. J Cell Biochem 2017; 118:4804-4812. [PMID: 28543681 DOI: 10.1002/jcb.26150] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 05/18/2017] [Indexed: 12/12/2022]
Abstract
An interaction between Mycobacterium tuberculosis and macrophages constitutes an essential step in tuberculosis development, as macrophages exert both positive and negative effects on M. tuberculosis-triggered organ lesions. In this study, we focused on the regulation of the expression of matrix metalloproteinases (MMPs), which is responsible for lung matrix degradation and bacteria dissection, in macrophages following M. tuberculosis infection. Female BALB/c mice were intravenously injected with the M. tuberculosis strain H37Rv at 0 h zeitgeber time (ZT0) or 12 h zeitgeber time (ZT12). The expression and activity of MMP-1, -2, -3, and -9 in lungs and spleens were then evaluated. In vitro, peritoneal macrophages were harvested at ZT0 or at ZT12 and infected with 10 MOI M. tuberculosis. The expression of MMPs, microRNA-223 and BMAL1 was analyzed by qRT-PCR and/or Western blot. The binding of BMAL1 3'-UTR by miR-223 was confirmed by luciferase activity assay. Additionally, wild-type BMAL1 or NLSmut BMAL1 plasmids were transfected to evaluate the effect of BMAL1 on MMPs. The results showed a differential expression of MMPs in mice tissues infected at different times. M. tuberculosis infection caused enhanced MMP-1, -9, and miR-223 expression, with inhibited BMAL1 expression. MiR-223 modulated BMAL1 expression via the direct binding of BMAL1 3'-UTR. Furthermore, wild-type BMAL1 other than NLSmut BMAL1 attenuated MMPs expression in M. tuberculosis-infected macrophages. Overall, this study demonstrated a potential involvement of circadian rhythm in MMP activation by M. tuberculosis in macrophages. J. Cell. Biochem. 118: 4804-4812, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Jun Lou
- Department of Clinical Laboratory, Zhumadian Central Hospital, Zhumadian, 463000, P.R. China
| | - Yongli Wang
- Neonatal Intensive Care Unit, Zhumadian Central Hospital, Zhumadian, 463000, P.R. China
| | - Zhimin Zhang
- Department of Clinical Laboratory, Zhumadian Central Hospital, Zhumadian, 463000, P.R. China
| | - Weiqiang Qiu
- Department of Clinical Laboratory, Zhumadian Central Hospital, Zhumadian, 463000, P.R. China
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9
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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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10
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Tang H, Liang YB, Chen ZB, Du LL, Zeng LJ, Wu JG, Yang W, Liang HP, Ma ZF. Soluble Egg Antigen Activates M2 Macrophages via the STAT6 and PI3K Pathways, and Schistosoma Japonicum Alternatively Activates Macrophage Polarization to Improve the Survival Rate of Septic Mice. J Cell Biochem 2017; 118:4230-4239. [PMID: 28419526 DOI: 10.1002/jcb.26073] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Accepted: 04/14/2017] [Indexed: 12/22/2022]
Abstract
Sepsis is one of the most challenging health problems worldwide. Our previous study showed that chronic schistosoma japonica (SJ) infection might increase serum anti-inflammatory factors to play a protective role, thus improving the survival rate of septic mice. Further research revealed that SJ infection promoted J774A.1 macrophage differentiation into M2 macrophages; suppressed LPS-induced activation of M1 macrophages; up-regulated CD163, IL-10, and TGF-β1 expression; inhibited TNF-α and iNOS expression; and blocked the effect of LPS-promoted TNF-α and iNOS expression. Furthermore, adoptive transfer of ex vivo programed M2 macrophages significantly increased the survival rate of septic mice. In vitro studies suggested that soluble egg antigen (SEA) from SJ played the same role as worm infection but had no impact on M1 macrophages. SEA reduced LPS-induced TNF-α and iNOS expression, decreased the inhibitory effect of LPS on IL-10 and TGF-β1 expression, increased STAT6 phosphorylation, and up-regulated PI3K and Akt expression but inhibited SOCS1 expression. When PI3K inhibitors were added, SEA-induced expression of CD163, IL-10, and arg1 might be reduced. Therefore, worm infection has a protective effect in septic mice in which SEA may play a key role via the STAT6 and PI3K pathways. This finding may provide a favorable solution for the treatment of sepsis, especially early cases. J. Cell. Biochem. 118: 4230-4239, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Hao Tang
- Department of General Internal Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Yan-Bing Liang
- Department of General Internal Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Zhi-Bin Chen
- Department of General Internal Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Lin-Lin Du
- Department of General Internal Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Li-Jin Zeng
- Department of General Internal Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Jing-Guo Wu
- Department of General Internal Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Wen Yang
- Department of General Internal Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Hua-Ping Liang
- The Third Military Medical University, Chongqing, 400038, China
| | - Zhong-Fu Ma
- Department of General Internal Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
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11
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Otsuka M, Okinaga T, Ariyoshi W, Kitamura C, Nishihara T. Ameloblastin Upregulates Inflammatory Response Through Induction of IL-1β in Human Macrophages. J Cell Biochem 2017; 118:3308-3317. [PMID: 28295583 DOI: 10.1002/jcb.25983] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 01/18/2017] [Accepted: 03/08/2017] [Indexed: 11/10/2022]
Abstract
Ameloblastin (AMBN) is an enamel matrix protein that has various biological functions such as healing dental pulp and repairing bone fractures. In the present study, we clarified the effect of AMBN on the expression of an inflammatory cytokine, interleukin-1β (IL-1β) in lipopolysaccharide (LPS)-treated human macrophages. Real-time RT-PCR analysis showed that LPS treatment upregulated expression of the IL-1β gene in U937 cells. Interestingly, AMBN significantly enhanced IL-1β gene expression in LPS-treated U937 cells as well as the secretion of mature IL-1β into culture supernatants by these cells. AMBN also activated caspase-1 p10 expression in LPS-treated U937 cells. Pretreatment with a caspase-1 inhibitor, Z-YVAD-FMK, downregulated the mature IL-1β expression enhanced by AMBN treatment in LPS-treated U937 cells. A co-immunoprecipitation assay showed that treatment with LPS and AMBN upregulated toll-like receptor 4 (TLR4) and myeloid differentiation primary response gene 88 (MyD88) interactions, but there was no significant difference compared with LPS treatment alone in U937 cells. In contrast, western blot analysis revealed that AMBN remarkably prolonged the phosphorylation of extracellular signal-regulated kinase 1/2 (ERK1/2), a member of the mitogen-activated protein kinase (MAPK) family. An ERK1/2-selective inhibitor, U0126, suppressed expression of the IL-1β gene as well as its protein expression in U937 cells treated with LPS and AMBN. Taken together, these results indicate that AMBN enhances IL-1β production in LPS-treated U937 cells through ERK1/2 phosphorylation and caspase-1 activation, suggesting that AMBN upregulates the inflammatory response in human macrophages and plays an important role in innate immunity. J. Cell. Biochem. 118: 3308-3317, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Mai Otsuka
- Division of Infections and Molecular Biology, Department of Health Promotion, Kyushu Dental University, Kitakyushu 803-8580, Japan.,Division of Endodontics and Restorative Dentistry, Department of Oral Functions, Kyushu Dental University, Kitakyushu 803-8580, Japan
| | - Toshinori Okinaga
- Division of Infections and Molecular Biology, Department of Health Promotion, Kyushu Dental University, Kitakyushu 803-8580, Japan
| | - Wataru Ariyoshi
- Division of Infections and Molecular Biology, Department of Health Promotion, Kyushu Dental University, Kitakyushu 803-8580, Japan
| | - Chiaki Kitamura
- Division of Endodontics and Restorative Dentistry, Department of Oral Functions, Kyushu Dental University, Kitakyushu 803-8580, Japan
| | - Tatsuji Nishihara
- Division of Infections and Molecular Biology, Department of Health Promotion, Kyushu Dental University, Kitakyushu 803-8580, Japan
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12
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Khan UA, Hashimi SM, Bakr MM, Forwood MR, Morrison NA. CCL2 and CCR2 are Essential for the Formation of Osteoclasts and Foreign Body Giant Cells. J Cell Biochem 2016. [PMID: 26205994 DOI: 10.1002/jcb.25282] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Osteoclasts are multinucleated cells responsible for bone resorption. They are derived from the fusion of cells in the monocyte/macrophage lineage. Monocytes and macrophages can also fuse to form foreign body giant cells (FBGC). Foreign body giant cells are observed at the interface between a host and a foreign body such as implants during a foreign body reaction. Macrophages are attracted to the site of bone resorption and foreign body reactions by different cytokines. Chemokine (C-C) ligand-2 (CCL2) is an important chemotactic factor and binds to a receptor CCR2. In this study we investigated the importance of CCL2 and the receptor CCR2 in the formation of osteoclasts and FBGC. CCL2 mRNA was more highly expressed in giant cell culture than macrophages, being 9-fold and 16-fold more abundant in osteoclasts and FBGC respectively. Significantly fewer osteoclasts and FBGC were cultured from the bone marrow of CCL2 and CCR2 knockout mice, when compared to wild type. Not only were the number of giant cells reduced but there was a significant reduction in the number of nuclei and the size of these cells in the cultures of CCL2 and CCR2 knockout mice. Formation of osteoclasts and FBGC were recovered in cultures by addition of exogenous CCL2 to the media containing marrow cells from CCL2-/- mice. We conclude that CCL2 and its receptor CCR2 are important for the formation of osteoclasts and FBGC and absence of these genes causes inhibition of osteoclast and FBGC formation.
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Affiliation(s)
- Usman A Khan
- School of Medical Science, Griffith University Gold Coast Campus, Queensland, 4215, Australia.,Senior Dentist Dalby Dental Clinic, Western Down, Queensland, 4405, Australia
| | - Saeed M Hashimi
- School of Medical Science, Griffith University Gold Coast Campus, Queensland, 4215, Australia.,Regenerative Medicine Centre, Molecular Basis for Disease, School of Dentistry and Oral Health, Menzies Health Institute Queensland, Griffith University Gold Coast Campus, Queensland, 4215, Australia
| | - Mahmoud M Bakr
- Regenerative Medicine Centre, Molecular Basis for Disease, School of Dentistry and Oral Health, Menzies Health Institute Queensland, Griffith University Gold Coast Campus, Queensland, 4215, Australia
| | - Mark R Forwood
- School of Medical Science, Griffith University Gold Coast Campus, Queensland, 4215, Australia
| | - Nigel A Morrison
- School of Medical Science, Griffith University Gold Coast Campus, Queensland, 4215, Australia
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13
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Carrillo SA, Anguita-Salinas C, Peña OA, Morales RA, Muñoz-Sánchez S, Muñoz-Montecinos C, Paredes-Zúñiga S, Tapia K, Allende ML. Macrophage Recruitment Contributes to Regeneration of Mechanosensory Hair Cells in the Zebrafish Lateral Line. J Cell Biochem 2016; 117:1880-9. [PMID: 26755079 DOI: 10.1002/jcb.25487] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [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: 12/24/2015] [Accepted: 01/06/2016] [Indexed: 01/07/2023]
Abstract
In vertebrates, damage to mechanosensory hair cells elicits an inflammatory response, including rapid recruitment of macrophages and neutrophils. While hair cells in amniotes usually become permanently lost, they readily regenerate in lower vertebrates such as fish. Damage to hair cells of the fish lateral line is followed by inflammation and rapid regeneration; however the role of immune cells in this process remains unknown. Here, we show that recruited macrophages are required for normal regeneration of lateral line hair cells after copper damage. We found that genetic ablation or local ablation using clodronate liposomes of macrophages recruited to the site of injury, significantly delays hair cell regeneration. Neutrophils, on the other hand, are not needed for this process. We anticipate our results to be a starting point for a more detailed description of extrinsic signals important for regeneration of mechanosensory cells in vertebrates. J. Cell. Biochem. 117: 1880-1889, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Simón A Carrillo
- FONDAP Center for Genome Regulation. Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Consuelo Anguita-Salinas
- FONDAP Center for Genome Regulation. Facultad de Ciencias, Universidad de Chile, Santiago, Chile.,Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile
| | - Oscar A Peña
- FONDAP Center for Genome Regulation. Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Rodrigo A Morales
- FONDAP Center for Genome Regulation. Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Salomé Muñoz-Sánchez
- FONDAP Center for Genome Regulation. Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Carlos Muñoz-Montecinos
- FONDAP Center for Genome Regulation. Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Susana Paredes-Zúñiga
- FONDAP Center for Genome Regulation. Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Karina Tapia
- FONDAP Center for Genome Regulation. Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Miguel L Allende
- FONDAP Center for Genome Regulation. Facultad de Ciencias, Universidad de Chile, Santiago, Chile
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14
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Tulk SE, Liao KC, Muruve DA, Li Y, Beck PL, MacDonald JA. Vitamin D₃ metabolites enhance the NLRP3-dependent secretion of IL-1β from human THP-1 monocytic cells. J Cell Biochem 2015; 116:711-20. [PMID: 25639477 DOI: 10.1002/jcb.24985] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [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: 05/20/2014] [Accepted: 09/22/2014] [Indexed: 01/18/2023]
Abstract
Vitamin D3 has emerged as an important regulator of the immune system. With metabolic enzymes for vitamin D3 activation and vitamin D receptors (VDR) now identified in a variety of immune cells, the active vitamin D3 metabolite 1,25(OH)2D3, is thought to possess immunomodulatory properties. We examined whether 1,25(OH)2D3 might also enhance the NLRP3-dependent release of mature IL-1β from macrophages. PMA-differentiated THP-1 cells were stimulated with vitamin D3 metabolites and assessed for CYP27, CYP24, NLRP3, ASC, pro-caspase-1 expression by western blot and real-time qPCR as well as inflammasome activation with pro-inflammatory cytokine IL-1β release measured by ELISA. Exposure to 1,25(OH)2D3 had no effect on the basal expression levels of VDR; however, CYP27A1 transcript was suppressed and CYP24A1 transcript was substantively elevated. Both 1,25(OH)2D3 - and 25(OH)D3 induced IL-1β release from THP-1 cells, and these effects were blocked with application of the caspase-1 inhibitor YVAD and the NLRP3 inhibitors glyburide and Bay 11-7082. Interestingly, 1,25 (OH)2D3 exposure reduced NLRP3 protein expression but had no effect on ASC or pro-caspase-1 protein levels. The increase in mature IL-1β elicited by 1,25(OH)2D3 was modest compared to that found for ATP or C. difficile toxins. However, co-treatment of THP-1 cells with ATP and 1,25(OH)2D3 resulted in more IL-1β secretion than ATP or 1,25(OH)2D3 alone.
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Affiliation(s)
- Sarah E Tulk
- Department of Biochemistry & Molecular Biology, University of Calgary, 3280, Hospital Drive, NW, Calgary, AB, T2N 4Z6, Canada
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15
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Abstract
Macrophages are present in nearly all tissues and are critical for development, homeostasis, and regeneration. Resident tissue macrophages of bone, termed osteal macrophages, are recently classified myeloid cells that are distinct from osteoclasts. Osteal macrophages are located immediately adjacent to osteoblasts, regulate bone formation, and play diverse roles in skeletal homeostasis. Genetic or pharmacological modulation of macrophages in vivo results in significant bone phenotypes, and these phenotypes depend on which macrophage subsets are altered. Macrophages are also key mediators of osseous wound healing and fracture repair, with distinct roles at various stages of the repair process. A central function of macrophages is their phagocytic ability. Each day, billions of cells die in the body and efferocytosis (phagocytosis of apoptotic cells) is a critical process in both clearing dead cells and recruitment of replacement progenitor cells to maintain homeostasis. Recent data suggest a role for efferocytosis in bone biology and these new mechanisms are outlined. Finally, although macrophages have an established role in primary tumors, emerging evidence suggests that macrophages in bone support cancers which preferentially metastasize to the skeleton. Collectively, this developing area of osteoimmunology raises new questions and promises to provide novel insights into pathophysiologic conditions as well as therapeutic and regenerative approaches vital for skeletal health.
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Affiliation(s)
- Benjamin P Sinder
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Allison R Pettit
- Blood and Bone Diseases Program, Mater Research Institute–The University of Queensland, Translational Research Institute, Woolloongabba, Australia
| | - Laurie K McCauley
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, USA
- Department of Pathology, University of Michigan, Medical School, Ann Arbor, MI, USA
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16
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Vi L, Baht GS, Whetstone H, Ng A, Wei Q, Poon R, Mylvaganam S, Grynpas M, Alman BA. Macrophages promote osteoblastic differentiation in-vivo: implications in fracture repair and bone homeostasis. J Bone Miner Res 2015; 30:1090-102. [PMID: 25487241 DOI: 10.1002/jbmr.2422] [Citation(s) in RCA: 205] [Impact Index Per Article: 22.8] [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: 05/12/2014] [Revised: 11/21/2014] [Accepted: 12/02/2014] [Indexed: 01/18/2023]
Abstract
Macrophages are activated in inflammation and during early phases of repair processes. Interestingly, they are also present in bone during development, but their function during this process is unclear. Here, we explore the function of macrophages in bone development, growth, and repair using transgenic mice to constitutively or conditionally deplete macrophages. Depletion of macrophages led to early skeletal growth retardation and progressive osteoporosis. By 3 months of age, macrophage-deficient mice displayed a 25% reduction in bone mineral density and a 70% reduction in the number of trabecular bone compared to control littermates. Despite depletion of macrophages, functional osteoclasts were still present in bones, lining trabecular bone and the endosteal surface of the cortical bone. Furthermore, ablation of macrophages led to a 60% reduction in the number of bone marrow mesenchymal progenitor cells and a decrease in the ability of these cells to differentiate to osteoblasts. When macrophages were depleted during fracture repair, bone union was impaired. Calluses from macrophage-deficient animals were smaller, and contained less bone and more fibrotic tissue deposition. Taken together, this shows that macrophages are crucial for maintaining bone homeostasis and promoting fracture repair by enhancing the differentiation of mesenchymal progenitors.
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Affiliation(s)
- Linda Vi
- Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, Ontario, Canada.,Institute of Medical Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Department of Orthopaedic Surgery, Duke University, Durham, North Carolina, USA
| | - Gurpreet S Baht
- Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Heather Whetstone
- Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Adeline Ng
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.,Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Qingxia Wei
- Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Raymond Poon
- Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Sivakami Mylvaganam
- Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Marc Grynpas
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.,Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Benjamin A Alman
- Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, Ontario, Canada.,Institute of Medical Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Department of Orthopaedic Surgery, Duke University, Durham, North Carolina, USA.,Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
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17
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Hull M, Lee E, Lee T, Anand N, LaLone V, Parameswaran N. Lithium chloride induces TNFα in mouse macrophages via MEK-ERK-dependent pathway. J Cell Biochem 2014; 115:71-80. [PMID: 23904208 DOI: 10.1002/jcb.24634] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [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: 04/09/2013] [Accepted: 07/19/2013] [Indexed: 12/12/2022]
Abstract
Lithium (Li) is one of the currently prescribed drugs for bipolar disorders (BPDs) and has many neuro-regulatory and immune-modulating properties. Because many neuro-pathological diseases including BPDs have been associated with some level of inflammation, Li's effect on inflammation may have some crucial consequences. Even though Li has been shown to have pro- and anti-inflammatory activities in different cell models, mechanisms involved in these effects are not well understood. Moreover, Li's effect on inflammation in the presence of activators of Toll-like receptors (TLRs), especially TLR-2 (that activates MyD88-dependent pathway) and TLR-3 (that activates TRIF-dependent pathway) is not known. Here we tested the role of Li in the presence and absence of TLR2, and TLR3 on MAPK and NFκB pathways and the consequent production of tumor necrosis factor-α (TNFα) in Raw264.7 macrophages. Our results indicate that Li enhances TNFα production both in the absence and presence of TLR stimulation. Interestingly, Li differentially modulates MAPK and NFκB pathways in the absence and presence of TLR2/3 ligands. Our results further indicate that the effect of Li on TNFα occurs at the post-transcriptional level. Together, these studies demonstrate that Li induces TNFα production in macrophages and that it modulates signaling at different levels depending on the presence or absence of TLR2/3 stimulation.
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Affiliation(s)
- Megan Hull
- Department of Physiology and Division of Pathology, Michigan State University, East Lansing, Michigan, USA
| | - Eunhee Lee
- Department of Physiology and Division of Pathology, Michigan State University, East Lansing, Michigan, USA
| | - Taehyung Lee
- Department of Physiology and Division of Pathology, Michigan State University, East Lansing, Michigan, USA
| | - Nandita Anand
- Department of Physiology and Division of Pathology, Michigan State University, East Lansing, Michigan, USA
| | - Vernon LaLone
- Department of Physiology and Division of Pathology, Michigan State University, East Lansing, Michigan, USA
| | - Narayanan Parameswaran
- Department of Physiology and Division of Pathology, Michigan State University, East Lansing, Michigan, USA
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18
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Zacherl JR, Mihalik SJ, Chace DH, Christensen TC, Robinson LJ, Blair HC. Elaidate, an 18-carbon trans-monoenoic fatty acid, inhibits β-oxidation in human peripheral blood macrophages. J Cell Biochem 2014; 115:62-70. [PMID: 23904193 DOI: 10.1002/jcb.24633] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [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: 05/14/2013] [Accepted: 07/22/2013] [Indexed: 12/11/2022]
Abstract
Consumption of trans-unsaturated fatty acids promotes atherosclerosis, but whether degradation of fats in macrophages is altered by trans-unsaturated fatty acids is unknown. We compared the metabolism of oleate (C18:1Δ9-10 cis; (Z)-octadec-9-enoate), elaidate (C18:Δ9-10 trans; (E)-octadec-9-enoate), and stearate (C18:0, octadecanoate) in adherent peripheral human macrophages. Metabolism was followed by measurement of acylcarnitines in cell supernatants by MS/MS, determination of cellular fatty acid content by GC/MS, and assessment of β-oxidation rates using radiolabeled fatty acids. Cells incubated for 44 h in 100 µM elaidate accumulated more unsaturated fatty acids, including both longer- and shorter-chain, and had reduced C18:0 relative to those incubated with oleate or stearate. Both C12:1 and C18:1 acylcarnitines accumulated in supernatants of macrophages exposed to trans fats. These results suggested β-oxidation inhibition one reaction proximal to the trans bond. Comparison of [1-(14)C]oleate to [1-(14)C]elaidate catabolism showed that elaidate completed the first round of fatty acid β-oxidation at rates comparable to oleate. Yet, in competitive β-oxidation assays with [9,10-(3)H]oleate, tritium release rate decreased when unlabeled oleate was replaced by the same quantity of elaidate. These data show specific inhibition of monoenoic fat catabolism by elaidate that is not shared by other atherogenic fats.
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Affiliation(s)
- Janelle R Zacherl
- Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania, 15261
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19
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Abou-Khalil R, Yang F, Mortreux M, Lieu S, Yu YY, Wurmser M, Pereira C, Relaix F, Miclau T, Marcucio RS, Colnot C. Delayed bone regeneration is linked to chronic inflammation in murine muscular dystrophy. J Bone Miner Res 2014; 29:304-15. [PMID: 23857747 PMCID: PMC3893315 DOI: 10.1002/jbmr.2038] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [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: 02/15/2013] [Revised: 06/19/2013] [Accepted: 07/01/2013] [Indexed: 12/11/2022]
Abstract
Duchenne muscular dystrophy (DMD) patients exhibit skeletal muscle weakness with continuous cycles of muscle fiber degeneration/regeneration, chronic inflammation, low bone mineral density, and increased risks of fracture. Fragility fractures and associated complications are considered as a consequence of the osteoporotic condition in these patients. Here, we aimed to establish the relationship between muscular dystrophy and fracture healing by assessing bone regeneration in mdx mice, a model of DMD with absence of osteoporosis. Our results illustrate that muscle defects in mdx mice impact the process of bone regeneration at various levels. In mdx fracture calluses, both cartilage and bone deposition were delayed followed by a delay in cartilage and bone remodeling. Vascularization of mdx fracture calluses was also decreased during the early stages of repair. Dystrophic muscles are known to contain elevated numbers of macrophages contributing to muscle degeneration. Accordingly, we observed increased macrophage recruitment in the mdx fracture calluses and abnormal macrophage accumulation throughout the process of bone regeneration. These changes in the inflammatory environment subsequently had an impact on the recruitment of osteoclasts and the remodeling phase of repair. Further damage to the mdx muscles, using a novel model of muscle trauma, amplified both the chronic inflammatory response and the delay in bone regeneration. In addition, PLX3397 treatment of mdx mice, a cFMS (colony stimulating factor receptor 1) inhibitor in monocytes, partially rescued the bone repair defect through increasing cartilage deposition and decreasing the number of macrophages. In conclusion, chronic inflammation in mdx mice contributes to the fracture healing delay and is associated with a decrease in angiogenesis and a transient delay in osteoclast recruitment. By revealing the role of dystrophic muscle in regulating the inflammatory response during bone repair, our results emphasize the implication of muscle in the normal bone repair process and may lead to improved treatment of fragility fractures in DMD patients.
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Affiliation(s)
- Rana Abou-Khalil
- INSERM U781, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Hôpital Necker Enfants Malades, Paris, France
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