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Jurado S, Parés A, Peris P, Combalia A, Monegal A, Guañabens N. Bilirubin increases viability and decreases osteoclast apoptosis contributing to osteoporosis in advanced liver diseases. Bone 2022; 162:116483. [PMID: 35787483 DOI: 10.1016/j.bone.2022.116483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 12/19/2022]
Abstract
Bilirubin and bile acids have deleterious effects on osteoblasts, which may explain the low bone formation of liver diseases with cholestasis. Although there is some clinical evidence of increased bone resorption in this condition, the effects of these substances on osteoclasts are unknown. The objective was to analyze the effects of bilirubin and bile acids -lithocholic acid (LCA) and ursodeoxycholic acid (UDCA)- on osteoclast viability and apoptosis, and on the expression of osteoclast-related microRNAs (miRNAs). RAW 264.7 cells and human PBMCs were differentiated into osteoclasts. Success in differentiation was assessed by TRAP stain and osteoclast-specific gene expression; osteoclast activity was detected by the resorption pits in Corning® Osteo Assay Surface Plates. Cells were treated with camptothecin (CAM) or with bilirubin, LCA or UDCA, at several concentrations and combinations, including non-treated cells as control. Cell viability was measured using WST-1 assay and apoptosis assessing Caspase-3 by Western blot. Expression of miR-21a, miR-29b, miR-31, miR-148a, miR-155 and miR-223 were analyzed by Real Time. Viability increased gradually in osteoclasts differentiated from RAW 264.7 cells, as the concentration of bilirubin increased, being particularly high with bilirubin 100 μM (61 %) as compared to the untreated control (p < 0.007). Viability decreased significantly with CAM, LCA and UDCA (80 %, 62 % and 27 %, respectively), effects which were abolished by bilirubin. Moreover, bilirubin increased viability in osteoclasts derived from human PBMCs (p < 0.03). Caspase-3 decreased by 46 % with bilirubin 50 μM and increased 10-fold with LCA 100 μM and CAM (p < 0.01). Bilirubin increased miR-21 and miR-148a expression as compared to controls (115 % and 59 %, respectively; p < 0.007). In conclusion, bilirubin increases viability and decreases apoptosis of osteoclasts, and overexpresses the osteoclastogenic miR-21 and miR-148a. The effects of bilirubin counteract the actions of LCA and UDCA. Therefore, bilirubin may contribute to the increased bone resorption and to the development of osteoporosis in advanced liver diseases.
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Affiliation(s)
- Susana Jurado
- IDIBAPS-Hospital Clinic, University of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red en Enfermedades Hepáticas y Digestivas (CIBERehd), Spain.
| | - Albert Parés
- Centro de Investigación Biomédica en Red en Enfermedades Hepáticas y Digestivas (CIBERehd), Spain; Liver Unit, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Pilar Peris
- Metabolic Bone Diseases Unit, Department of Rheumatology, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Andreu Combalia
- Orthopedics Department, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Ana Monegal
- Metabolic Bone Diseases Unit, Department of Rheumatology, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Núria Guañabens
- Metabolic Bone Diseases Unit, Department of Rheumatology, Hospital Clínic, University of Barcelona, Barcelona, Spain
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Osteostatin Inhibits M-CSF+RANKL-Induced Human Osteoclast Differentiation by Modulating NFATc1. Int J Mol Sci 2022; 23:ijms23158551. [PMID: 35955685 PMCID: PMC9369336 DOI: 10.3390/ijms23158551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/24/2022] [Accepted: 07/29/2022] [Indexed: 01/27/2023] Open
Abstract
Parathyroid hormone-related protein (PTHrP) C-terminal peptides regulate the metabolism of bone cells. PHTrP [107–111] (osteostatin) promotes bone repair in animal models of bone defects and prevents bone erosion in inflammatory arthritis. In addition to its positive effects on osteoblasts, osteostatin may inhibit bone resorption. The aim of this study was to determine the effects of osteostatin on human osteoclast differentiation and function. We used macrophage colony-stimulating factor (M-CSF) and receptor activator of nuclear factor κB ligand (RANKL) to induce the osteoclast differentiation of adherent human peripheral blood mononuclear cells. Tartrate-resistant acid phosphatase (TRAP) staining was performed for the detection of the osteoclasts. The function of mature osteoclasts was assessed with a pit resorption assay. Gene expression was evaluated with qRT-PCR, and nuclear factor of activated T cells, cytoplasmic 1 (NFATc1) nuclear translocation was studied by immunofluorescence. We observed that osteostatin (100, 250 and 500 nM) decreased the differentiation of osteoclasts in a concentration-dependent manner, but it did not modify the resorptive ability of mature osteoclasts. In addition, osteostatin decreased the mRNA levels of cathepsin K, osteoclast associated Ig-like receptor (OSCAR) and NFATc1. The nuclear translocation of the master transcription factor in osteoclast differentiation NFATc1 was reduced by osteostatin. Our results suggest that the anti-resorptive effects of osteostatin may be dependent on the inhibition of osteoclastogenesis. This study has shown that osteostatin controls human osteoclast differentiation in vitro through the downregulation of NFATc1.
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Hou YC, Zheng CM, Chiu HW, Liu WC, Lu KC, Lu CL. Role of Calcimimetics in Treating Bone and Mineral Disorders Related to Chronic Kidney Disease. Pharmaceuticals (Basel) 2022; 15:ph15080952. [PMID: 36015101 PMCID: PMC9415417 DOI: 10.3390/ph15080952] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 12/17/2022] Open
Abstract
Renal osteodystrophy is common in patients with chronic kidney disease and end-stage renal disease and leads to the risks of fracture and extraosseous vascular calcification. Secondary hyperparathyroidism (SHPT) is characterized by a compensatory increase in parathyroid hormone (PTH) secretion in response to decreased renal phosphate excretion, resulting in potentiating bone resorption and decreased bone quantity and quality. Calcium-sensing receptors (CaSRs) are group C G-proteins and negatively regulate the parathyroid glands through (1) increasing CaSR insertion within the plasma membrane, (2) increasing 1,25-dihydroxy vitamin D3 within the kidney and parathyroid glands, (3) inhibiting fibroblast growth factor 23 (FGF23) in osteocytes, and (4) attenuating intestinal calcium absorption through Transient Receptor Potential Vanilloid subfamily member 6 (TRPV6). Calcimimetics (CaMs) decrease PTH concentrations without elevating the serum calcium levels or extraosseous calcification through direct interaction with cell membrane CaSRs. CaMs reduce osteoclast activity by reducing stress-induced oxidative autophagy and improving Wnt-10b release, which promotes the growth of osteoblasts and subsequent mineralization. CaMs also directly promote osteoblast proliferation and survival. Consequently, bone quality may improve due to decreased bone resorption and improved bone formation. CaMs modulate cardiovascular fibrosis, calcification, and renal fibrosis through different mechanisms. Therefore, CaMs assist in treating SHPT. This narrative review focuses on the role of CaMs in renal osteodystrophy, including their mechanisms and clinical efficacy.
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Affiliation(s)
- Yi-Chou Hou
- Division of Nephrology, Department of Medicine, Cardinal-Tien Hospital, School of Medicine, Fu-Jen Catholic University, New Taipei City 24205, Taiwan;
| | - Cai-Mei Zheng
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, School of Medicine, College of Medicine, Taipei Medical University, New Taipei City 11031, Taiwan;
- TMU Research Centre of Urology and Kidney, Taipei Medical University, New Taipei City 11031, Taiwan;
| | - Hui-Wen Chiu
- TMU Research Centre of Urology and Kidney, Taipei Medical University, New Taipei City 11031, Taiwan;
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, New Taipei City 11031, Taiwan
- Department of Medical Research, Shuang Ho Hospital, Taipei Medical University, New Taipei City 11031, Taiwan
| | - Wen-Chih Liu
- Department of Biology and Anatomy, National Defense Medical Center, Taipei 11490, Taiwan;
- Section of Nephrology, Department of Medicine, Antai Medical Care Corporation, Anti Tian-Sheng Memorial Hospital, Pingtung 92842, Taiwan
| | - Kuo-Cheng Lu
- Division of Nephrology, Department of Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, School of Medicine, Buddhist Tzu Chi University, Hualien 97004, Taiwan
- Division of Nephrology, Department of Medicine, Fu-Jen Catholic University Hospital, School of Medicine, Fu-Jen Catholic University, New Taipei City 24205, Taiwan;
- Correspondence:
| | - Chien-Lin Lu
- Division of Nephrology, Department of Medicine, Fu-Jen Catholic University Hospital, School of Medicine, Fu-Jen Catholic University, New Taipei City 24205, Taiwan;
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Villa NY, Rahman MM, Mamola J, Sharik ME, de Matos AL, Kilbourne J, Lowe K, Daggett-Vondras J, D'Isabella J, Goras E, Chesi M, Bergsagel PL, McFadden G. Transplantation of autologous bone marrow pre-loaded ex vivo with oncolytic myxoma virus is efficacious against drug-resistant Vk*MYC mouse myeloma. Oncotarget 2022; 13:490-504. [PMID: 35251496 PMCID: PMC8893797 DOI: 10.18632/oncotarget.28205] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 02/14/2022] [Indexed: 11/25/2022] Open
Abstract
Multiple myeloma (MM) is a hematological malignancy of plasma cells that remains incurable despite significant progress with myeloablative regimens and autologous stem cell transplantation for eligible patients and, more recently with T cell redirected immunotherapy. Recently, we reported that ex vivo virotherapy with oncolytic myxoma virus (MYXV) improved MM-free survival in an autologous-transplant Balb/c mouse model. Here, we tested the Vk*MYC transplantable C57BL/6 mouse MM model that more closely recapitulates human disease. In vitro, the murine bortezomib-resistant Vk12598 cell line is fully susceptible to MYXV infection. In vivo results demonstrate: (i) autologous bone marrow (BM) leukocytes armed ex vivo with MYXV exhibit moderate therapeutic effects against MM cells pre-seeded into recipient mice; (ii) Cyclophosphamide in combination with BM/MYXV delays the onset of myeloma in mice seeded with Vk12598 cells; (iii) BM/MYXV synergizes with the Smac-mimetics LCL161 and with immune checkpoint inhibitor α-PD-1 to control the progression of established MM in vivo, resulting in significant improvement of survival rates and decreased of tumor burden; (iv) Survivor mice from (ii) and (iii), when re-challenged with fresh Vk12598 cells, developed acquired anti-MM immunity. These results highlight the utility of autologous BM grafts armed ex vivo with oncolytic MYXV alone or in combination with chemotherapy/immunotherapy to treat drug-resistant MM in vivo.
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Affiliation(s)
- Nancy Y. Villa
- Biodesign Institute, Center for Immunotherapy, Vaccines and Virotherapy (CIVV), Arizona State University, Tempe, AZ 85281, USA
- Division of Hematology/Oncology, School of Medicine, Emory University, Atlanta, GA 32322, USA
| | - Masmudur M. Rahman
- Biodesign Institute, Center for Immunotherapy, Vaccines and Virotherapy (CIVV), Arizona State University, Tempe, AZ 85281, USA
| | - Joseph Mamola
- Biodesign Institute, Center for Immunotherapy, Vaccines and Virotherapy (CIVV), Arizona State University, Tempe, AZ 85281, USA
| | | | - Ana Lemos de Matos
- Biodesign Institute, Center for Immunotherapy, Vaccines and Virotherapy (CIVV), Arizona State University, Tempe, AZ 85281, USA
| | - Jacquelyn Kilbourne
- Biodesign Institute, Center for Immunotherapy, Vaccines and Virotherapy (CIVV), Arizona State University, Tempe, AZ 85281, USA
| | - Kenneth Lowe
- Biodesign Institute, Center for Immunotherapy, Vaccines and Virotherapy (CIVV), Arizona State University, Tempe, AZ 85281, USA
| | - Juliane Daggett-Vondras
- Biodesign Institute, Center for Immunotherapy, Vaccines and Virotherapy (CIVV), Arizona State University, Tempe, AZ 85281, USA
| | - Julia D'Isabella
- Biodesign Institute, Center for Immunotherapy, Vaccines and Virotherapy (CIVV), Arizona State University, Tempe, AZ 85281, USA
| | - Elizabeth Goras
- Biodesign Institute, Center for Immunotherapy, Vaccines and Virotherapy (CIVV), Arizona State University, Tempe, AZ 85281, USA
| | - Marta Chesi
- Department of Medicine, Mayo Clinic, Scottsdale, AZ 85259, USA
| | | | - Grant McFadden
- Biodesign Institute, Center for Immunotherapy, Vaccines and Virotherapy (CIVV), Arizona State University, Tempe, AZ 85281, USA
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Zeng Q, Xu R, Ling H, Zhao S, Wang X, Yuan W, Gu M, Xu T, Wang P, Ruan H, Jin H, Qu H, Ye F, Chen J. N-Butanol Extract of Modified You-Gui-Yin Attenuates Osteoclastogenesis and Ameliorates Osteoporosis by Inhibiting RANKL-Mediated NF-κB Signaling. Front Endocrinol (Lausanne) 2022; 13:925848. [PMID: 35813633 PMCID: PMC9263119 DOI: 10.3389/fendo.2022.925848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 05/23/2022] [Indexed: 12/02/2022] Open
Abstract
Postmenopausal Osteoporosis (PMOP) is the most prevalent primary osteoporosis, attributable to an imbalance in osteoblast and osteoclast activity. Modified You-Gui-Yin (MYGY), a traditional Chinese herbal formula, is able to effectively treat PMOP, while the critical components and pharmacological mechanisms of MYGY are still unclear. In this study, we aimed to investigate the therapeutic effects and underlying mechanisms of N-butanol extract of MYGY (MYGY-Nb) in ovariectomized (OVX)-induced osteoporosis mice. Histological staining and micro-computed tomography (μCT) analysis showed that MYGY-Nb was more effective in the suppression of OVX-induced bone loss than MYGY original formula. Subsequently, liquid chromatography and mass spectrometry analysis identified 16 critical compounds of MYGY-Nb and some of them are reported to affect osteoclast functions. Furthermore, in vivo and in vitro experiments demonstrated that MYGY-Nb significantly attenuated osteoclastogenesis by down-regulating RANKL-mediated NF-κB signaling. In conclusion, our study indicated that MYGY-Nb suppresses NF-κB signaling and osteoclast formation to mitigate bone loss in PMOP, implying that MYGY-Nb and its compounds are potential candidates for development of anti-PMOP drugs.
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Affiliation(s)
- Qinghe Zeng
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Rui Xu
- Department of Orthopaedics, Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Houfu Ling
- Department of Orthopaedics, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Shan Zhao
- The College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xu Wang
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Wenhua Yuan
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Mancang Gu
- The College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Taotao Xu
- Department of Orthopaedics, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Pinger Wang
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Hongfeng Ruan
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Hongting Jin
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Hangbo Qu
- Department of Orthopaedic Surgery, Zhejiang Hospital, Hangzhou, China
- *Correspondence: Jiali Chen, ; Fusheng Ye, ; Hangbo Qu,
| | - Fusheng Ye
- Affiliated Xiaoshan Hospital, Hangzhou Normal University, Hangzhou, China
- *Correspondence: Jiali Chen, ; Fusheng Ye, ; Hangbo Qu,
| | - Jiali Chen
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
- *Correspondence: Jiali Chen, ; Fusheng Ye, ; Hangbo Qu,
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Sun Y, Li J, Xie X, Gu F, Sui Z, Zhang K, Yu T. Recent Advances in Osteoclast Biological Behavior. Front Cell Dev Biol 2021; 9:788680. [PMID: 34957116 PMCID: PMC8694526 DOI: 10.3389/fcell.2021.788680] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/15/2021] [Indexed: 12/19/2022] Open
Abstract
With the progress of the aging population, bone-related diseases such as osteoporosis and osteoarthritis have become urgent problems. Recent studies have demonstrated the importance of osteoclasts in bone homeostasis, implying these will be an important mediator in the treatment of bone-related diseases. Up to now, several reviews have been performed on part of osteoclast biological behaviors such as differentiation, function, or apoptosis. However, few reviews have shown the complete osteoclast biology and research advances in recent years. Therefore, in this review, we focus on the origin, differentiation, apoptosis, behavior changes and coupling signals with osteoblasts, providing a simple but comprehensive overview of osteoclasts for subsequent studies.
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Affiliation(s)
- Yang Sun
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
| | - Jiangbi Li
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
| | - Xiaoping Xie
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
| | - Feng Gu
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
| | - Zhenjiang Sui
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
| | - Ke Zhang
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
| | - Tiecheng Yu
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
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Smac-mimetics reduce numbers and viability of human osteoclasts. Cell Death Discov 2021; 7:36. [PMID: 33608503 PMCID: PMC7895921 DOI: 10.1038/s41420-021-00415-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 01/09/2021] [Indexed: 12/15/2022] Open
Abstract
Elevated activity of bone-degrading osteoclasts (OC) contributes to pathological bone degradation in diseases such as multiple myeloma. Several proinflammatory cytokines, including TNF, contribute to osteoclastogenesis. The receptor-interacting protein kinase 1 (RIPK1) regulates inflammation and cell death. It is recruited to the TNF-receptor complex, where it is ubiquitinated, and activates transcription factor NF-κB and mitogen-activated protein kinases (MAPK). Smac-mimetics (SM) is a group of drugs that block RIPK1 ubiquitination and shifts RIPK1 to activation of apoptosis or necroptosis. In this manuscript, we show that the two SM birinapant and LCL-161 reduced the number and viability of primary human OC, and induced TNF-dependent cell death in OC precursors (pre-OC). Birinapant was more cytotoxic than LCL-161 and induced predominantly apoptosis and to some degree necroptosis. Both inhibitors restrained osteoclastogenesis induced by myeloma patient bone-marrow aspirates. SM has gained attention as novel treatment strategies both for cancer and chronic inflammatory pathologies, but limited information has been available on interactions with primary human immune cells. As LCL-161 is in phase 2 clinical studies for multiple myeloma, we propose that SM might possess additional benefits in reducing bone degradation in myeloma patients. Taken together, we show that SM reduces human osteoclastogenesis, and that these compounds may represent promising drug candidates for pathological bone degradation.
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Horita M, Farquharson C, Stephen LA. The role of miR-29 family in disease. J Cell Biochem 2021; 122:696-715. [PMID: 33529442 PMCID: PMC8603934 DOI: 10.1002/jcb.29896] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/05/2021] [Accepted: 01/10/2021] [Indexed: 02/06/2023]
Abstract
MicroRNAs are small noncoding RNAs that can bind to the target sites in the 3’‐untranslated region of messenger RNA to regulate posttranscriptional gene expression. Increasing evidence has identified the miR‐29 family, consisting of miR‐29a, miR‐29b‐1, miR‐29b‐2, and miR‐29c, as key regulators of a number of biological processes. Moreover, their abnormal expression contributes to the etiology of numerous diseases. In the current review, we aimed to summarize the differential expression patterns and functional roles of the miR‐29 family in the etiology of diseases including osteoarthritis, osteoporosis, cardiorenal, and immune disease. Furthermore, we highlight the therapeutic potential of targeting members of miR‐29 family in these diseases. We present miR‐29s as promoters of osteoblast differentiation and apoptosis but suppressors of chondrogenic and osteoclast differentiation, fibrosis, and T cell differentiation, with clear avenues for therapeutic manipulation. Further research will be crucial to identify the precise mechanism of miR‐29 family in these diseases and their full potential in therapeutics.
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Affiliation(s)
- Masahiro Horita
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Midlothian, Scotland, UK
| | - Colin Farquharson
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Midlothian, Scotland, UK
| | - Louise A Stephen
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Midlothian, Scotland, UK
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Cao J, Wang S, Wei C, Lin H, Zhang C, Gao Y, Xu Z, Cheng Z, Sun WC, Wang HB. Agrimophol suppresses RANKL-mediated osteoclastogenesis through Blimp1-Bcl6 axis and prevents inflammatory bone loss in mice. Int Immunopharmacol 2021; 90:107137. [PMID: 33199235 DOI: 10.1016/j.intimp.2020.107137] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 10/17/2020] [Accepted: 10/25/2020] [Indexed: 02/06/2023]
Abstract
Excessive activity of osteoclasts causes many bone-related diseases, such as rheumatoid arthritis and osteoporosis. Agrimophol (AGR), a phenolic compound, originated from Agrimonia pilosa Ledeb. In prior studies, AGR is reported to possess schistosomicidal and mycobactericidal activities. However, no reports covered its anti-osteoclastogenesis characteristic. In this study, we found that AGR inhibited RANKL-induced osteoclastogenesis, bone-resorption, F-actin ring formation, and the mRNA expression of osteoclast-associated genes such as CTSK, TRAP, MMP-9, and ATP6v0d2 in vitro. In addition, AGR suppressed RANKL-induced expression of c-Fos and NFATc1. However, AGR treatment did not affect NF-κB activation and MAPKs phosphorylation in RANKL-stimulated BMMs, which implicated that AGR might not influence the initial expression of NFATc1 mediated by NF-κB and MAPKs signaling. Our results further indicated that AGR did not alter phosphorylation levels of GSK3β and the expression of calcineurin, which implicated that AGR treatment might not interfere with phosphorylation and de-phosphorylation of NFATc1 mediated by GSK3β and calcineurin, respectively. B-lymphocyte-induced maturation protein-1 (Blimp1), which was regarded as a transcriptional repressor of negative regulators of osteoclastogenesis, was markedly attenuated in the presence of AGR, leading to the enhanced expression of B-cell lymphoma 6 (Bcl-6). Meanwhile, Blimp1 knockdown in BMMs by siRNA strongly enhanced the expression of Bcl6 and reduced NFATc1 induction by RANKL. These findings suggested that AGR inhibited RANKL-induced osteoclast differentiation through Blimp1-Bcl-6 signaling mediated modulation of NFATc1 and its target genes. Consistent with these in vitro results, AGR exhibited a protective influence in an in vivo mouse model of LPS-induced bone loss by suppressing excessive osteoclast activity and attenuating LPS-induced bone destruction. Hence, these results identified that AGR could be considered as a potential therapeutic agent against bone lysis disease.
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Affiliation(s)
- Jinjin Cao
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shaoming Wang
- Department of Endocrinology, Changchun People's Hospital, Changchun, China
| | - Congmin Wei
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Hongru Lin
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Chen Zhang
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Yehui Gao
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Zixian Xu
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Zhou Cheng
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China.
| | - Wan-Chun Sun
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun 130062, China.
| | - Hong-Bing Wang
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China.
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Tang D, Liu X, Chen K, Li Z, Dai Y, Xu J, Zhang HT, Gao X, Liu L. Cytoplasmic PCNA is located in the actin belt and involved in osteoclast differentiation. Aging (Albany NY) 2020; 12:13297-13317. [PMID: 32597793 PMCID: PMC7377826 DOI: 10.18632/aging.103434] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 05/25/2020] [Indexed: 12/18/2022]
Abstract
Osteoporosis (OP) is an age-related osteolytic disease and characterized by low bone mass and more prone to fracture due to active osteoclasts. Proliferating cell nuclear antigen (PCNA) has been long identified as a nuclear protein playing critical roles in the regulation of DNA replication and repair. Recently, a few studies have demonstrated the cytoplasmic localization of PCNA and its function associated with apoptosis in neutrophil and neuroblastoma cells. However, the involvement of PCNA, including the cytoplasmic PCNA, in the osteoclast differentiation remains unclear. In the present study, we show that PCNA is translocated from nucleus to cytoplasm during the RANKL-induced osteoclast differentiation, and localized in the actin belt of mature osteoclast. Knockdown of PCNA significantly affected the integrity of actin belt, the formation of multinucleated osteoclasts, the expression of osteoclast-specific genes, and the in vitro bone resorption. Interactomic study has revealed β-actin as the major interacting partner of the cytoplasmic PCNA, suggesting that cytoplasmic PCNA might play a critical role in the differentiation of osteoclast through regulation of actin-cytoskeleton remodeling. Taken together, our results demonstrate the critical role of cytoplasmic PCNA during the process of osteoclast differentiation, and provided a potential therapeutic target for treatment of osteoclast-related bone diseases.
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Affiliation(s)
- Donge Tang
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular Biology, Institute of Life and Health Engineering, Jinan University, Guangzhou 510632, China.,Department of Clinical Medical Research Center, The Second Clinical Medical College of Jinan University, The First Affiliated Hospital Southern University of Science and Technology, Shenzhen People's Hospital, Shenzhen 518020, Guangdong, China
| | - Xiaohui Liu
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular Biology, Institute of Life and Health Engineering, Jinan University, Guangzhou 510632, China
| | - Kezhi Chen
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular Biology, Institute of Life and Health Engineering, Jinan University, Guangzhou 510632, China
| | - Zhipeng Li
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular Biology, Institute of Life and Health Engineering, Jinan University, Guangzhou 510632, China
| | - Yong Dai
- Department of Clinical Medical Research Center, The Second Clinical Medical College of Jinan University, The First Affiliated Hospital Southern University of Science and Technology, Shenzhen People's Hospital, Shenzhen 518020, Guangdong, China
| | - Jiake Xu
- School of Pathology and Laboratory Medicine, University of Western Australia, Perth 6009, Western Australia, Australia
| | - Huan-Tian Zhang
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular Biology, Institute of Life and Health Engineering, Jinan University, Guangzhou 510632, China.,Institute of Orthopedic Diseases and Department of Bone and Joint Surgery, The First Affiliated Hospital, Jinan University, Guangzhou 510630, Guangdong, China
| | - Xuejuan Gao
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular Biology, Institute of Life and Health Engineering, Jinan University, Guangzhou 510632, China
| | - Langxia Liu
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular Biology, Institute of Life and Health Engineering, Jinan University, Guangzhou 510632, China
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Wang CG, Wang L, Yang T, Su SL, Hu YH, Zhong D. Pseudogene PTENP1 sponges miR-214 to regulate the expression of PTEN to modulate osteoclast differentiation and attenuate osteoporosis. Cytotherapy 2020; 22:412-423. [PMID: 32561161 DOI: 10.1016/j.jcyt.2020.04.090] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 04/08/2020] [Accepted: 04/16/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND AIMS Osteoporosis (OP) is a common bone metabolic disease with a high incidence. Our study aimed to explore the pseudogene PTENP1/miR-214/PTEN axis to modulate the osteoclast differentiation in osteoporosis. METHODS Patients with osteoporosis were recruited in our study, and RANKL-induced osteoclast differentiation and ovariectomy-induced osteoporosis mouse model were established in vitro and in vivo, respectively. RESULTS Pseudogene PTENP1 and PTEN were significantly down-regulated and miR-214 was up-regulated in osteoporosis patients. In addition, overexpression of PTENP1 or silence of miR-214 inhibited the expression levels of osteoclast specific markers and osteoclast differentiation induced by RANKL. Overexpression of PTENP1 or silence of miR-214 also inhibited the levels of phosphorylation of PI3K and AKT, p65 nuclear translocation, IκBα degradation and the expression level of NFATc1. AlsoSilence of PTENP1 or overexpression of miR-214 induced the osteoclast differentiation under normal physiological condition. Pseudogene PTENP1 sponged miR-214 to regulate the expression of PTEN. CONCLUSIONS In an ovariectomy-induced osteoporosis mouse model, obvious pathological changes in bone tissues were found, and bone marrow mononuclear cells in this group were more likely to differentiate into osteoclasts. Therefore, pseudogene PTENP1 sponged miR-214 to regulate the expression of PTEN to inhibit osteoclast differentiation and attenuate osteoporosis by suppressing the PI3K/AKT/NF-κB signaling pathway.
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Affiliation(s)
- Cheng-Gong Wang
- Department of Orthopaedics, Xiangya Hospital of Central South University, Changsha, Hunan Province, P.R. China
| | - Long Wang
- Department of Orthopaedics, Xiangya Hospital of Central South University, Changsha, Hunan Province, P.R. China
| | - Ting Yang
- Department of Orthopaedics, Xiangya Hospital of Central South University, Changsha, Hunan Province, P.R. China
| | - Shi-Long Su
- Department of Orthopaedics, Xiangya Hospital of Central South University, Changsha, Hunan Province, P.R. China
| | - Yi-He Hu
- Department of Orthopaedics, Xiangya Hospital of Central South University, Changsha, Hunan Province, P.R. China
| | - Da Zhong
- Department of Orthopaedics, Xiangya Hospital of Central South University, Changsha, Hunan Province, P.R. China.
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12
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Tanneberger AM, Al-Maawi S, Herrera-Vizcaíno C, Orlowska A, Kubesch A, Sader R, Kirkpatrick CJ, Ghanaati S. Multinucleated giant cells within the in vivo implantation bed of a collagen-based biomaterial determine its degradation pattern. Clin Oral Investig 2020; 25:859-873. [PMID: 32514904 PMCID: PMC7878236 DOI: 10.1007/s00784-020-03373-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 05/25/2020] [Indexed: 12/21/2022]
Abstract
Objectives The aim of the present study was to characterize the cellular reaction to a xenogeneic resorbable collagen membrane of porcine origin using a subcutaneous implantation model in Wistar rats over 30 days. Materials and methods Ex vivo, liquid platelet-rich fibrin (PRF), a leukocyte and platelet-rich cell suspension, was used to evaluate the blood cell membrane interaction. The material was implanted subcutaneously in rats. Sham-operated rats without biomaterial displayed physiological wound healing (control group). Histological, immunohistological, and histomorphometric analyses were focused on the inflammatory pattern, vascularization rate, and degradation pattern. Results The membrane induced a large number of mononuclear cells over the observation period, including lymphocytes, macrophages, and fibroblasts. After 15 days, multinucleated giant cells (MNGCs) were observed on the biomaterial surface. Their number increased significantly, and they proceeded to the center of the biomaterial on day 30. These cells highly expressed CD-68, calcitonin receptor, and MMP-9, but not TRAP or integrin-ß3. Thus, the membrane lost its integrity and underwent disintegration as a consequence of the induction of MNGCs. The significant increase in MNGC number correlated with a high rate of vascularization, which was significantly higher than the control group. Physiological wound healing in the control group did not induce any MNGCs at any time point. Ex vivo blood cells from liquid-PRF did not penetrate the membrane. Conclusion The present study suggests a potential role for MNGCs in biomaterial degradation and questions whether it is beneficial to accept them in clinically approved biomaterials or focus on biomaterials that induce only mononuclear cells. Thus, further studies are necessary to identify the function of biomaterial-induced MNGCs. Clinical relevance Understanding the cellular reaction to biomaterials is essential to assess their suitability for specific clinical indications and outline the potential benefit of specific group of biomaterials in the respective clinical indications.
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Affiliation(s)
- Anna Maria Tanneberger
- Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, FORM (Frankfurt Orofacial Regenerative Medicine) Lab, University Hospital Frankfurt Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Sarah Al-Maawi
- Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, FORM (Frankfurt Orofacial Regenerative Medicine) Lab, University Hospital Frankfurt Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Carlos Herrera-Vizcaíno
- Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, FORM (Frankfurt Orofacial Regenerative Medicine) Lab, University Hospital Frankfurt Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Anna Orlowska
- Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, FORM (Frankfurt Orofacial Regenerative Medicine) Lab, University Hospital Frankfurt Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Alica Kubesch
- Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, FORM (Frankfurt Orofacial Regenerative Medicine) Lab, University Hospital Frankfurt Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Robert Sader
- Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, FORM (Frankfurt Orofacial Regenerative Medicine) Lab, University Hospital Frankfurt Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - C J Kirkpatrick
- Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, FORM (Frankfurt Orofacial Regenerative Medicine) Lab, University Hospital Frankfurt Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Shahram Ghanaati
- Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, FORM (Frankfurt Orofacial Regenerative Medicine) Lab, University Hospital Frankfurt Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany.
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Li K, Chen S, Cai P, Chen K, Li L, Yang X, Yi J, Luo X, Du Y, Zheng H. MiRNA-483-5p is involved in the pathogenesis of osteoporosis by promoting osteoclast differentiation. Mol Cell Probes 2019; 49:101479. [PMID: 31706013 DOI: 10.1016/j.mcp.2019.101479] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 10/28/2019] [Accepted: 11/05/2019] [Indexed: 02/07/2023]
Abstract
AIMS The study aimed to investigate the roles of miR-483-5p and IGF2 in osteoclast formation. METHODS Blood and bone tissues were collected from osteoporosis and non-osteoporosis patients with hip fractures for gene expression analysis. CD14 + peripheral blood mononuclear cells (PBMCs) were isolated for differentiating osteoclasts. MiR-483-5p mimic and inhibitor was transfected into CD14 + PBMCs, respectively. Predicted by TargetScan and verified by Dual-luciferase reporter assay system, insulin-like growth factor-2 (IGF2) could be targeted by miR-483-5p. IGF2 expression vector was co-transfected with miR-483-5p mimic to study the role of IGF2 in miR-483-5p affecting osteoclast differentiation. Flow cytometry was performed for cell apoptosis analysis. RESULTS High-expressed miR-483-5p and low-expressed IGF2 were frequently found in the serums and bone tissues derived from osteoporotic patients. We found that up-regulation of miR-483-5p in CD14 + PBMCs notably increased the number of TRAP-positive cells, at the same time, the expression levels of TRAP, nuclear factor of activated T-cells (NFATc1), cytoplasmic 1 (NFAT2) and Cathepsin K (CTSK) were also up-regulated. However, overexpressed IGF2 effectively reversed such effects produced by up-regulation of miR-483-5p on osteoclastogenesis-related factors in CD14 + PBMCs. Moreover, forced expression of IGF2 could also enhance apoptosis of osteoclasts reduced by miR-483-5p. CONCLUSIONS Our study suggests that miRNA-483-5p is involved in the pathogenesis of osteoporosis by promoting osteoclast differentiation.
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Affiliation(s)
- Keqian Li
- Department of Orthopedics, Suizhou Hospital, Hubei University of Medicine, China
| | - Shenghao Chen
- Department of Orthopedics, Suizhou Hospital, Hubei University of Medicine, China
| | - Pingyuan Cai
- Department of Orthopedics, Suizhou Hospital, Hubei University of Medicine, China
| | - Kang Chen
- Department of Orthopedics, Suizhou Hospital, Hubei University of Medicine, China
| | - Lei Li
- Department of Orthopedics, Suizhou Hospital, Hubei University of Medicine, China
| | - Xu Yang
- Department of Orthopedics, Suizhou Hospital, Hubei University of Medicine, China
| | - Jianhua Yi
- Department of Orthopedics, Suizhou Hospital, Hubei University of Medicine, China
| | - Xingshun Luo
- Department of Orthopedics, Suizhou Hospital, Hubei University of Medicine, China
| | - Yang Du
- Department of Orthopedics, Suizhou Hospital, Hubei University of Medicine, China
| | - Hong Zheng
- Department of Orthopedics, Suizhou Hospital, Hubei University of Medicine, China.
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Yang H, Liu J, Yang K. Comparative Study of 660 and 830 nm Photobiomodulation in Promoting Orthodontic Tooth Movement. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2019; 37:349-355. [PMID: 31188090 DOI: 10.1089/photob.2018.4615] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Huan Yang
- School of Stomatology, Capital Medical University, Beijing, China
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jingwen Liu
- School of Stomatology, Capital Medical University, Beijing, China
- Liaocheng People's Hospital, Liaocheng, China
| | - Kai Yang
- School of Stomatology, Capital Medical University, Beijing, China
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15
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Ke D, Tarafder S, Vahabzadeh S, Bose S. Effects of MgO, ZnO, SrO, and SiO 2 in tricalcium phosphate scaffolds on in vitro gene expression and in vivo osteogenesis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 96:10-19. [PMID: 30606515 PMCID: PMC6484851 DOI: 10.1016/j.msec.2018.10.073] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 09/05/2018] [Accepted: 10/21/2018] [Indexed: 11/28/2022]
Abstract
β‑tricalcium phosphate (β‑TCP) is a versatile bioceramic for its use in many orthopedic and dental applications due to its excellent biocompatibility and biodegradability. Recently, the addition of additives to β‑TCP has been proven to improve bone repair and regeneration, however, the underlying mechanism of enhanced bone regeneration is still unknown. In this study, strontium oxide (SrO), silica (SiO2), magnesia (MgO), and zinc oxide (ZnO) were added to β‑TCP for dense discs fabrication followed by in vitro evaluation using a preosteoblast cell line. Cell viability and gene expression were analyzed at day 3 and day 9 during the cell culture. MgO and SiO2 were found to significantly enhance and expedite osteoblastic differentiation. A potential mechanism was introduced to explain the additive induced osteoblastic differentiation. In addition, in vivo characterizations showed that porous 3D printed MgO-SiO2-TCP scaffolds significantly improved new bone formation after 16 weeks of implantation. This study shows beneficial effects of additives on osteoblastic viability and differentiation in vitro as well as osteogenesis in vivo, which is crucial towards the development of bone tissue engineering scaffolds.
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Affiliation(s)
- Dongxu Ke
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164-2920, USA
| | - Solaiman Tarafder
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164-2920, USA
| | - Sahar Vahabzadeh
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164-2920, USA
| | - Susmita Bose
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164-2920, USA.
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16
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Fu Y, Niu D, Su W, Yang Q, Wang W, Tang B, Li Z, Zhang D, Mao Y, Li C, Li X, Ye S, Su X, Xu F, Sun X, Chen C. Effects of Ca2+/calmodulin‑dependent protein kinase pathway inhibitor KN93 on osteoclastogenesis. Int J Mol Med 2018; 42:2294-2302. [PMID: 30066838 DOI: 10.3892/ijmm.2018.3793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 07/20/2018] [Indexed: 11/05/2022] Open
Abstract
The aim of the present study was to determine the effects of the Ca2+/calmodulin‑dependent protein kinase pathway inhibitor KN93 on osteoclastogenesis. RAW264.7 cells were incubated with macrophage colony‑stimulating factor (M‑CSF) + receptor activator of nuclear factor kappa‑light‑chain‑enhancer of activated B cells ligand (RANKL) to stimulate osteoclastogenesis and then treated with 10 µM KN93. The methods included tartrate‑resistant acid phosphatase (TRAP) staining, bone resorption activity assays, filamentous (F)‑actin staining, determination of intracellular calcium ([Ca2+]i) levels, monitoring of osteoclast‑specific gene expression levels and measurement of key transcription factors protein levels. The results suggested that KN93 inhibited the formation of TRAP‑positive multinucleated cells, shaping of F‑actin rings and resorption activity of the cells. In addition, KN93 decreased the concentration of [Ca2+]i, expression levels of osteoclast specific genes and protein levels of critical transcription factors in the M‑CSF + RANKL‑induced osteoclast model. In summary, KN93 may directly affect the differentiation and activation of osteoclasts, potentially through the Ca2+/calmodulin‑dependent protein kinase signaling pathway.
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Affiliation(s)
- Yingxiao Fu
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Dequn Niu
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Wenfang Su
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Qingling Yang
- Department of Medical Laboratory, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Wenrui Wang
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Baoding Tang
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Zhongwen Li
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Ding Zhang
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Yingji Mao
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Chuang Li
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Xue Li
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Shihao Ye
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Xu Su
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Fanyuan Xu
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Xuemin Sun
- Department of Clinical Medicine, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Changjie Chen
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
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Maurizi A, Rucci N. The Osteoclast in Bone Metastasis: Player and Target. Cancers (Basel) 2018; 10:E218. [PMID: 29954079 PMCID: PMC6071064 DOI: 10.3390/cancers10070218] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 06/21/2018] [Accepted: 06/21/2018] [Indexed: 12/20/2022] Open
Abstract
Bone metastases are frequently the final fate of breast and prostate cancer patients. According to the definition of metastasis as an incurable disease, to date there are no effective treatments for tumor-associated bone metastases and this represents a real challenge for the researchers in the field. The bone is a heterogeneous environment that represents a fertile soil for tumor cells, supporting their growth. Among the different cell types present in the bone, in this review we will focus our attention on the osteoclasts, which are crucial players in the so called “vicious cycle”, a phenomenon triggered by tumor cells eventually leading to both tumor proliferation as well as bone deregulation, thus fueling the development of bone metastasis. The complex network, linking tumor cells to the bone by activating osteoclasts, represents a fruitful target for the treatment of bone metastases. In this review we will describe how tumor cells perturb the bone microenvironment by actively influencing osteoclast formation and activity. Moreover, we will describe the current antiresorptive drugs employed in the treatment of bone metastases as well as new, targeted therapies able to affect both cancer cells and osteoclasts.
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Affiliation(s)
- Antonio Maurizi
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
| | - Nadia Rucci
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
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18
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Exosomes: mediators of bone diseases, protection, and therapeutics potential. Oncoscience 2018; 5:181-195. [PMID: 30035185 PMCID: PMC6049320 DOI: 10.18632/oncoscience.421] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 02/06/2018] [Indexed: 12/15/2022] Open
Abstract
Bone remodeling is a continuous lifelong process in the repair of micro-damage to bone architecture and replacement of aging tissue in bone. A failure to such process leads to pathological destructive bone diseases such as osteoporosis, rheumatoid arthritis, and osteoarthritis. However, this active process is regulated by; osteoclasts, which are involved in the bone resorption process; osteoblasts, with involvement in the bone formation process and bone-derived endothelial cells, which promote angiogenesis. In the bone micro-environment, these cellular interactions are mediated by a complex interplay between cell types via direct interaction of cell secreted growth factors, such as cytokines. Recently, the discovery of exosomes (∼ 40–100 nm in size), has attracted more attention in the field of the bone remodeling process. Exosomes and microvesicles are derived from different types of bone cells such as mesenchymal stem cells, osteoblasts, osteoclasts and their precursors. They are also recognized to play pivotal roles in bone remodeling processes including osteogenesis, osteoclastogenesis, and angiogenesis. In this review, we especially emphasize the origin and biogenesis of exosomes and bone cell derived exosomes in the regulatory process of bone remodeling. Moreover, this review article also focuses on exosomal secreted proteins and microRNAs and their involvement in the regulation of bone remodeling.
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Cellular and Molecular Mediators of Bone Metastatic Lesions. Int J Mol Sci 2018; 19:ijms19061709. [PMID: 29890702 PMCID: PMC6032429 DOI: 10.3390/ijms19061709] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 06/01/2018] [Accepted: 06/06/2018] [Indexed: 12/13/2022] Open
Abstract
Bone is the preferential site of metastasis for breast and prostate tumor. Cancer cells establish a tight relationship with the host tissue, secreting factors that stimulate or inhibit bone cells, receiving signals generated from the bone remodeling activity, and displaying some features of bone cells. This interplay between tumor and bone cells alters the physiological bone remodeling, leading to the generation of a vicious cycle that promotes bone metastasis growth. To prevent the skeletal-related events (SRE) associated with bone metastasis, approaches to inhibit osteoclast bone resorption are reported. The bisphosphonates and Denosumab are currently used in the treatment of patients affected by bone lesions. They act to prevent or counteract the SRE, including pathologic fractures, spinal cord compression, and pain associated with bone metastasis. However, their primary effects on tumor cells still remain controversial. In this review, a description of the mechanisms leading to the onset of bone metastasis and clinical approaches to treat them are described.
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Kim EH, Jo CS, Ryu SY, Kim SH, Lee JY. Anti-osteoclastogenic diacetylenic components of Dendropanax morbifera. Arch Pharm Res 2018; 41:506-512. [DOI: 10.1007/s12272-018-1033-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 04/24/2018] [Indexed: 10/17/2022]
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Abstract
Bone homeostasis depends on the resorption of bones by osteoclasts and formation of bones by the osteoblasts. Imbalance of this tightly coupled process can cause diseases such as osteoporosis. Thus, the mechanisms that regulate communication between osteoclasts and osteoblasts are critical to bone cell biology. It has been shown that osteoblasts and osteoclasts can communicate with each other through direct cell-cell contact, cytokines, and extracellular matrix interaction. Osteoblasts can affect osteoclast formation, differentiation, or apoptosis through several pathways, such as OPG/RANKL/RANK, RANKL/LGR4/RANK, Ephrin2/ephB4, and Fas/FasL pathways. Conversely, osteoclasts also influence formation of bones by osteoblasts via the d2 isoform of the vacuolar (H+) ATPase (v-ATPase) V0 domain (Atp6v0d2), complement component 3a, semaphorin 4D or microRNAs. In addition, cytokines released from the resorbed bone matrix, such as TGF-β and IGF-1, also affect the activity of osteoblasts. Drugs could be developed by enhancing or restricting some of these interactions. Several reviews have been performed on the osteoblast-osteoclast communication. However, few reviews have shown the research advances in the recent years. In this review, we summarized the current knowledge on osteoblast-osteoclast communication.
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Affiliation(s)
- Xiao Chen
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210097, Jiangsu Province, China
| | - Zhongqiu Wang
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210097, Jiangsu Province, China
| | - Na Duan
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210097, Jiangsu Province, China
| | - Guoying Zhu
- Department of Bone Metabolism, Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Edward M. Schwarz
- Department of Orthopaedics, Center for Musculoskeletal Research, School of Medicine and Dentistry, University of Rochester, Rochester, NY 14642, USA
| | - Chao Xie
- Department of Orthopaedics, Center for Musculoskeletal Research, School of Medicine and Dentistry, University of Rochester, Rochester, NY 14642, USA
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Adeyemi WJ, Olayaki LA. Calcitonin and Omega-3 Fatty Acids Exhibit Antagonistic and Non-Additive Effects in Experimental Diabetes. ACTA ACUST UNITED AC 2018; 25:117-123. [PMID: 29449103 DOI: 10.1016/j.pathophys.2018.02.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/05/2018] [Accepted: 02/07/2018] [Indexed: 01/26/2023]
Abstract
Because optimising therapy for the management of diabetes mellitus remains challenging, the study investigated the effects of salmon calcitonin (Sct) and/or omega-3 fatty acids (N-3 - eicosapentaenoic acid and docosahexaenoic acid-3:2), compared to metformin, on selected biochemical parameters in male Wistar rats, in an experimental model of diabetes. Forty rats were used for this study. They were divided into eight groups of five rats each, which included: Normal control; Diabetic (D) control; D + N-3; D + low dose Sct (Sct. Lw); D + high dose Sct (Sct. Hi); D + N-3 + Sct.Lw; D + N-3 + Sct.Hi; and D + metformin. Diabetes was induced in overnight fasted rats by the administration of streptozotocin (65 mg/kg b.w., i.p.), 15 min after the administration of nicotinamide (110 mg/kg b.w., i.p.). Nine days later, Sct was administered at 2.5 and 5.0 IU/kg b.w./day (i.m.), while N-3 and metformin were administered at 200 and 180 mg/kg b.w./day (p.o.) respectively, for four weeks. Sct, N-3, and metformin significantly reduced total cholesterol, LDL-C, cortisol, c-telopeptide of type 1 collagen, and collagen type 2 alpha-1. The combined administration of Sct and N-3 had more favorable effects on triglyceride and HDL-C than either monotherapy. Unlike metformin and Sct. Hi, N-3 significantly reduced alkaline phosphatase activity. Moreover, N-3 significantly suppressed the hypocalcaemic, hyperglycaemic, and insulin resistance provoking actions of Sct. Furthermore, N-3 contradicted the hepatic glycogen depletion and inhibition of nitric oxide synthesis brought about by Sct. In conclusion, N-3 demonstrated antagonistic and non-additive actions with Sct. Moreover, the effects of the combined administration of Sct and N-3 were comparable to that of metformin; therefore, they might be considered as therapeutic alternatives in diabetes.
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Affiliation(s)
- Wale Johnson Adeyemi
- Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, Nigeria.
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Yang Y, Fang S. Small non-coding RNAs-based bone regulation and targeting therapeutic strategies. Mol Cell Endocrinol 2017; 456:16-35. [PMID: 27888003 PMCID: PMC7116989 DOI: 10.1016/j.mce.2016.11.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 11/06/2016] [Accepted: 11/21/2016] [Indexed: 01/08/2023]
Abstract
Small non-coding RNAs, which are 20-25 nucleotide ribonucleic acids, have emerged as an important transformation in the biological evolution over almost three decades. microRNAs (miRNAs) and short interfering RNAs (siRNAs) are two significant categories of the small RNAs that exert important effects on bone endocrinology and skeletology. Therefore, clarifying the expression and function of these important molecules in bone endocrine physiology and pathology is of great significance for improving their potential therapeutic value for metabolism-associated bone diseases. In the present review, we highlight the recent advances made in understanding the function and molecular mechanism of these small non-coding RNAs in bone metabolism, especially their potentially therapeutic values in bone-related diseases.
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Affiliation(s)
- Ying Yang
- Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University, School of Medicine, Shanghai, China
| | - Sijie Fang
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University, School of Medicine, Shanghai, China.
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24
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Lin DPL, Dass CR. Weak bones in diabetes mellitus – an update on pharmaceutical treatment options. J Pharm Pharmacol 2017; 70:1-17. [DOI: 10.1111/jphp.12808] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 07/26/2017] [Indexed: 12/14/2022]
Abstract
Abstract
Objectives
Diabetes mellitus is often associated with a number of complications such as nephropathy, neuropathy, retinopathy and foot ulcers. However, weak bone is a diabetic complication that is often overlooked. Although the exact mechanism for weak bones within diabetes mellitus is unclear, studies have shown that the mechanism does differ in both type I (T1DM) and type II diabetes (T2DM). This review, however, investigates the application of mesenchymal stem cells, recombinant human bone morphogenetic protein-2, teriparatide, insulin administration and the effectiveness of a peroxisome proliferator-activated receptor-ϒ modulator, netoglitazone in the context of diabetic weak bones.
Key findings
In T1DM, weak bones may be the result of defective osteoblast activity, the absence of insulin's anabolic effects on bone, the deregulation of the bone–pancreas negative feedback loop and advanced glycation end product (AGE) aggregation within the bone matrix as a result of hyperglycaemia. Interestingly, T2DM patients placed on insulin administration, thiazolidinediones, SGLT2 inhibitors and sulfonylureas have an associated increased fracture risk. T2DM patients are also observed to have high sclerostin levels that impair osteoblast gene transcription, AGE aggregation within bone, which compromises bone strength and a decrease in esRAGE concentration resulting in a negative association with vertebral fractures.
Summary
Effective treatment options for weak bones in the context of diabetes are currently lacking. There is certainly scope for discovery and development of novel agents that could alleviate this complication in diabetes patients.
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Affiliation(s)
- Daphne P L Lin
- School of Pharmacy, Curtin University, Bentley, WA 6102, Australia
- Curtin Health and Innovation Research Institute, Bentley, WA 6102, Australia
| | - Crispin R Dass
- School of Pharmacy, Curtin University, Bentley, WA 6102, Australia
- Curtin Health and Innovation Research Institute, Bentley, WA 6102, Australia
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25
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Chen X, Zhi X, Pan P, Cui J, Cao L, Weng W, Zhou Q, Wang L, Zhai X, Zhao Q, Hu H, Huang B, Su J. Matrine prevents bone loss in ovariectomized mice by inhibiting RANKL-induced osteoclastogenesis. FASEB J 2017; 31:4855-4865. [PMID: 28739641 PMCID: PMC5636701 DOI: 10.1096/fj.201700316r] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 07/05/2017] [Indexed: 01/30/2023]
Abstract
Osteoporosis is a metabolic bone disease characterized by decreased bone density and strength due to excessive loss of bone protein and mineral content. The imbalance between osteogenesis by osteoblasts and osteoclastogenesis by osteoclasts contributes to the pathogenesis of postmenopausal osteoporosis. Estrogen withdrawal leads to increased levels of proinflammatory cytokines. Overactivated osteoclasts by inflammation play a vital role in the imbalance. Matrine is an alkaloid found in plants from the Sophora genus with various pharmacological effects, including anti-inflammatory activity. Here we demonstrate that matrine significantly prevented ovariectomy-induced bone loss and inhibited osteoclastogenesis in vivo with decreased serum levels of TRAcp5b, TNF-α, and IL-6. In vitro matrine significantly inhibited osteoclast differentiation induced by receptor activator for NF-κB ligand (RANKL) and M-CSF in bone marrow monocytes and RAW264.7 cells as demonstrated by tartrate-resistant acid phosphatase (TRAP) staining and actin-ring formation as well as bone resorption through pit formation assays. For molecular mechanisms, matrine abrogated RANKL-induced activation of NF-κB, AKT, and MAPK pathways and suppressed osteoclastogenesis-related marker expression, including matrix metalloproteinase 9, NFATc1, TRAP, C-Src, and cathepsin K. Our study demonstrates that matrine inhibits osteoclastogenesis through modulation of multiple pathways and that matrine is a promising agent in the treatment of osteoclast-related diseases such as osteoporosis.-Chen, X., Zhi, X., Pan, P., Cui, J., Cao, L., Weng, W., Zhou, Q., Wang, L., Zhai, X. Zhao, Q., Hu, H., Huang, B., Su, J. Matrine prevents bone loss in ovariectomized mice by inhibiting RANKL-induced osteoclastogenesis.
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Affiliation(s)
- Xiao Chen
- Department of Orthopedics Trauma and Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.,China-South Korea Bioengineering Center, Shanghai, China
| | - Xin Zhi
- Graduate Management Unit, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China; and
| | - Panpan Pan
- Department of Orthopedics Trauma and Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.,China-South Korea Bioengineering Center, Shanghai, China
| | - Jin Cui
- Graduate Management Unit, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China; and
| | - Liehu Cao
- Department of Orthopedics Trauma and Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.,China-South Korea Bioengineering Center, Shanghai, China
| | - Weizong Weng
- Department of Orthopedics Trauma and Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.,China-South Korea Bioengineering Center, Shanghai, China
| | - Qirong Zhou
- Department of Orthopedics Trauma and Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.,China-South Korea Bioengineering Center, Shanghai, China
| | - Lin Wang
- Department of Orthopedics Trauma and Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.,China-South Korea Bioengineering Center, Shanghai, China
| | - Xiao Zhai
- Department of Orthopedics Trauma and Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Qingiie Zhao
- China-South Korea Bioengineering Center, Shanghai, China.,School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Honggang Hu
- China-South Korea Bioengineering Center, Shanghai, China.,School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Biaotong Huang
- China-South Korea Bioengineering Center, Shanghai, China
| | - Jiacan Su
- Department of Orthopedics Trauma and Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China; .,China-South Korea Bioengineering Center, Shanghai, China
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26
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Cong W, Zhou C, Yin J. Alpinumisoflavone inhibits osteoclast differentiation and exerts anti-osteoporotic effect in ovariectomized mice. Biomed Pharmacother 2017. [PMID: 28651235 DOI: 10.1016/j.biopha.2017.06.059] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Alpinumisoflavone (AIF), a naturally occurring flavonoid compound exacted from Derris eriocarpa, has been found to have a number of pharmacological activities. However, its role in bone disorder has not been investigated. The aim of this study is to evaluate the osteoprotective effect of AIF on ovariectomy-induced bone loss in mice model and related underlying mechanisms. Our study provides experimental evidence that AIF could regulate the remodeling process of bone and exert osteoprotective effect against ovariectomy-induced bone loss. Moreover, our results show that AIF suppresses osteoclast differentiation by attenuating RANKL-induced activation of p38, ERK and JNK pathways and consequently represses the expression of c-Fos and NFATc1.
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Affiliation(s)
- Wei Cong
- Qilu Hospital of Shandong University, Qingdao, Shandong, China
| | - Chao Zhou
- Qilu Hospital of Shandong University, Qingdao, Shandong, China
| | - Jun Yin
- Qilu Hospital of Shandong University, Qingdao, Shandong, China.
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27
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Ciapetti G, Di Pompo G, Avnet S, Martini D, Diez-Escudero A, Montufar EB, Ginebra MP, Baldini N. Osteoclast differentiation from human blood precursors on biomimetic calcium-phosphate substrates. Acta Biomater 2017; 50:102-113. [PMID: 27940198 DOI: 10.1016/j.actbio.2016.12.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 11/08/2016] [Accepted: 12/06/2016] [Indexed: 12/25/2022]
Abstract
The design of synthetic bone grafts to foster bone formation is a challenge in regenerative medicine. Understanding the interaction of bone substitutes with osteoclasts is essential, since osteoclasts not only drive a timely resorption of the biomaterial, but also trigger osteoblast activity. In this study, the adhesion and differentiation of human blood-derived osteoclast precursors (OCP) on two different micro-nanostructured biomimetic hydroxyapatite materials consisting in coarse (HA-C) and fine HA (HA-F) crystals, in comparison with sintered stoichiometric HA (sin-HA, reference material), were investigated. Osteoclasts were induced to differentiate by RANKL-containing supernatant using cell/substrate direct and indirect contact systems, and calcium (Ca++) and phosphorus (P5+) in culture medium were measured. We observed that OCP adhered to the experimental surfaces, and that osteoclast-like cells formed at a rate influenced by the micro- and nano-structure of HA, which also modulate extracellular Ca++. Qualitative differences were found between OCP on biomimetic HA-C and HA-F and their counterparts on plastic and sin-HA. On HA-C and HA-F cells shared typical features of mature osteoclasts, i.e. podosomes, multinuclearity, tartrate acid phosphatase (TRAP)-positive staining, and TRAP5b-enzyme release. However, cells were less in number compared to those on plastic or on sin-HA, and they did not express some specific osteoclast markers. In conclusion, blood-derived OCP are able to attach to biomimetic and sintered HA substrates, but their subsequent fusion and resorptive activity are hampered by surface micro-nano-structure. Indirect cultures suggest that fusion of OCP is sensitive to topography and to extracellular calcium. STATEMENT OF SIGNIFICANCE The novelty of the paper is the differentiation of human blood-derived osteoclast precursors, instead of mouse-derived macrophages as used in most studies, directly on biomimetic micro-nano structured HA-based surfaces, as triggered by osteoblast-produced factors (RANKL/OPG), and influenced by chemistry and topography of the substrate(s). Biomimetic HA-surfaces, like those obtained in calcium phosphate cements, are very different from the conventional calcium phosphate ceramics, both in terms of topography and ion exchange. The role of these factors in modulating precursors' differentiation and activity is analysed. The system is closely reproducing the physiological process of attachment of host cells and further maturation to osteoclasts toward resorption of the substrate, which occurs in vivo after filling bone defects with the calcium phosphate grafts.
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Affiliation(s)
- Gabriela Ciapetti
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, Istituto Ortopedico Rizzoli, Bologna, Italy.
| | - Gemma Di Pompo
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, Istituto Ortopedico Rizzoli, Bologna, Italy; Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy.
| | - Sofia Avnet
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, Istituto Ortopedico Rizzoli, Bologna, Italy.
| | - Desirée Martini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy.
| | - Anna Diez-Escudero
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgy, Technical University of Catalonia, BarcelonaTech (UPC), Barcelona, Spain.
| | - Edgar B Montufar
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgy, Technical University of Catalonia, BarcelonaTech (UPC), Barcelona, Spain.
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgy, Technical University of Catalonia, BarcelonaTech (UPC), Barcelona, Spain; Institute for Bioengineering of Catalonia, Barcelona, Spain.
| | - Nicola Baldini
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, Istituto Ortopedico Rizzoli, Bologna, Italy; Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy.
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28
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Sun W, Zhao C, Li Y, Wang L, Nie G, Peng J, Wang A, Zhang P, Tian W, Li Q, Song J, Wang C, Xu X, Tian Y, Zhao D, Xu Z, Zhong G, Han B, Ling S, Chang YZ, Li Y. Osteoclast-derived microRNA-containing exosomes selectively inhibit osteoblast activity. Cell Discov 2016; 2:16015. [PMID: 27462462 PMCID: PMC4886818 DOI: 10.1038/celldisc.2016.15] [Citation(s) in RCA: 222] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 03/21/2016] [Indexed: 02/07/2023] Open
Abstract
MicroRNAs have an important role in bone homeostasis. However, the detailed mechanism of microRNA-mediated intercellular communication between bone cells remains elusive. Here, we report that osteoclasts secrete microRNA-enriched exosomes, by which miR-214 is transferred into osteoblasts to inhibit their function. In a coculture system, inhibition of exosome formation and secretion prevented miR-214 transportation. Exosomes specifically recognized osteoblasts through the interaction between ephrinA2 and EphA2. In osteoclast-specific miR-214 transgenic mice, exosomes were secreted into the serum, and miR-214 and ephrinA2 levels were elevated. Therefore, these exosomes have an inhibitory role in osteoblast activity. miR-214 and ephrinA2 levels in serum exosomes from osteoporotic patients and mice were upregulated substantially. These exosomes may significantly inhibit osteoblast activity. Inhibition of exosome secretion via Rab27a small interfering RNA prevented ovariectomized-induced osteoblast dysfunction in vivo. Taken together, these findings suggest that exosome-mediated transfer of microRNA plays an important role in the regulation of osteoblast activity. Circulating miR-214 in exosomes not only represents a biomarker for bone loss but could selectively regulate osteoblast function.
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Affiliation(s)
- Weijia Sun
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China; Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, Key Laboratory of Molecular and Cellular Biology of Ministry of Education, College of Life Science, Hebei Normal University, Shijiazhuang, China
| | - Chenyang Zhao
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China; Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, Key Laboratory of Molecular and Cellular Biology of Ministry of Education, College of Life Science, Hebei Normal University, Shijiazhuang, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yuheng Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center , Beijing, China
| | - Liang Wang
- Institute of Orthopedics, 309 Hospital of Chinese People's Liberation Army , Beijing, China
| | - Guangjun Nie
- Key Laboratory of Chinese Academy of Sciences for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China , Beijing, China
| | - Jiang Peng
- Institute of Orthopedics, General Hospital of Chinese People's Liberation Army , Beijing, China
| | - Aiyuan Wang
- Institute of Orthopedics, General Hospital of Chinese People's Liberation Army , Beijing, China
| | - Pengfei Zhang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China; Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, Key Laboratory of Molecular and Cellular Biology of Ministry of Education, College of Life Science, Hebei Normal University, Shijiazhuang, China
| | - Weiming Tian
- Bio-X Center, School of Life Science and Technology, Harbin Institute of Technology , Harbin, China
| | - Qi Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center , Beijing, China
| | - Jinping Song
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center , Beijing, China
| | - Cheng Wang
- Institute of Orthopedics, General Hospital of Chinese People's Liberation Army , Beijing, China
| | - Xiaolong Xu
- Institute of Orthopedics, General Hospital of Chinese People's Liberation Army , Beijing, China
| | - Yanhua Tian
- Key Laboratory of Chinese Academy of Sciences for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China , Beijing, China
| | - Dingsheng Zhao
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center , Beijing, China
| | - Zi Xu
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China; Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, Key Laboratory of Molecular and Cellular Biology of Ministry of Education, College of Life Science, Hebei Normal University, Shijiazhuang, China
| | - Guohui Zhong
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center , Beijing, China
| | - Bingxing Han
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center , Beijing, China
| | - Shukuan Ling
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center , Beijing, China
| | - Yan-Zhong Chang
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, Key Laboratory of Molecular and Cellular Biology of Ministry of Education, College of Life Science, Hebei Normal University , Shijiazhuang, China
| | - Yingxian Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center , Beijing, China
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29
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Tsukamoto M, Menuki K, Murai T, Hatakeyama A, Takada S, Furukawa K, Sakai A. Elcatonin prevents bone loss caused by skeletal unloading by inhibiting preosteoclast fusion through the unloading-induced high expression of calcitonin receptors in bone marrow cells. Bone 2016; 85:70-80. [PMID: 26851124 DOI: 10.1016/j.bone.2016.01.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 01/08/2016] [Accepted: 01/12/2016] [Indexed: 11/20/2022]
Abstract
This study aimed to clarify whether elcatonin (EL) has a preventive action on bone dynamics in skeletal unloading. Seven-week-old male C57BL/6J mice with either ground control (GC) or tail suspension (TS) were administered EL 20U/kg or a vehicle (veh) three times per week and assigned to one of the following four groups: GCEL, GCveh, TSEL, and TSveh. Blood samples and bilateral femurs and tibias of the mice were obtained for analysis. After 7days of unloading, the trabecular bone mineral density in the distal femur obtained via peripheral quantitative computed tomography and the trabecular bone volume were significantly higher in the TSEL group than in the TSveh group. The bone resorption histomorphometric parameters, such as the osteoclast surface and osteoclast number, were significantly suppressed in the TSEL mice, whereas the number of preosteoclasts was significantly increased. The plasma level of tartrate-resistant acid phosphatase-5b (TRACP-5b) was significantly lower in the TSEL group than in all other groups. In the bone marrow cell culture, the number of TRACP-positive (TRACP(+)) multinucleated cells was significantly lower in the TSEL mice than in the TSveh mice, whereas the number of TRACP(+) mononucleated cells was higher in the TSEL mice. On day 4, the expression of nuclear factor of activated T-cells, cytoplasmic, calcineurin-dependent 1 (NFATc1), cathepsin K and d2 isoform of vacuolar ATPase V0 domain (ATP6V0D2) mRNA in the bone marrow cells in the TSEL mice was suppressed, and the expression of calcitonin receptor (Calcr) mRNA on day 1 and Calcr antigen on day 4 were significantly higher in the TSveh mice than in the GCveh mice. EL prevented the unloading-induced bone loss associated with the high expression of Calcr in the bone marrow cells of mouse hindlimbs after tail suspension, and it suppressed osteoclast development from preosteoclasts to mature osteoclasts through bone-resorbing activity. This study of EL-treated unloaded mice provides the first in vivo evidence of a physiological role of EL in the inhibition of the differentiation process from preosteoclasts to osteoclasts.
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Affiliation(s)
- Manabu Tsukamoto
- Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.
| | - Kunitaka Menuki
- Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.
| | - Teppei Murai
- Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.
| | - Akihisa Hatakeyama
- Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.
| | - Shinichiro Takada
- Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.
| | - Kayoko Furukawa
- Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.
| | - Akinori Sakai
- Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.
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30
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Rucci N, Teti A. The "love-hate" relationship between osteoclasts and bone matrix. Matrix Biol 2016; 52-54:176-190. [PMID: 26921625 DOI: 10.1016/j.matbio.2016.02.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 02/22/2016] [Accepted: 02/22/2016] [Indexed: 01/06/2023]
Abstract
Osteoclasts are unique cells that destroy the mineralized matrix of the skeleton. There is a "love-hate" relationship between the osteoclasts and the bone matrix, whereby the osteoclast is stimulated by the contact with the matrix but, at the same time, it disrupts the matrix, which, in turn, counteracts this disruption by some of its components. The balance between these concerted events brings about bone resorption to be controlled and to contribute to bone tissue integrity and skeletal health. The matrix components released by osteoclasts are also involved in the local regulation of other bone cells and in the systemic control of organismal homeostasis. Disruption of this regulatory loop causes bone diseases, which may end up with either reduced or increased bone mass, often associated with poor bone quality. Expanding the knowledge on osteoclast-to-matrix interaction could help to counteract these diseases and improve the human bone health. In this article, we will present evidence of the physical, molecular and regulatory relationships between the osteoclasts and the mineralized matrix, discussing the underlying mechanisms as well as their pathologic alterations and potential targeting.
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Affiliation(s)
- Nadia Rucci
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Italy
| | - Anna Teti
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Italy.
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31
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Zhao C, Sun W, Zhang P, Ling S, Li Y, Zhao D, Peng J, Wang A, Li Q, Song J, Wang C, Xu X, Xu Z, Zhong G, Han B, Chang YZ, Li Y. miR-214 promotes osteoclastogenesis by targeting Pten/PI3k/Akt pathway. RNA Biol 2015; 12:343-53. [PMID: 25826666 DOI: 10.1080/15476286.2015.1017205] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
microRNA is necessary for osteoclast differentiation, function and survival. It has been reported that miR-199/214 cluster plays important roles in vertebrate skeletal development and miR-214 inhibits osteoblast function by targeting ATF4. Here, we show that miR-214 is up-regulated during osteoclastogenesis from bone marrow monocytes (BMMs) with macrophage colony stimulating factor (M-CSF) and receptor activator of nuclear factor-κB ligand (RANKL) induction, which indicates that miR-214 plays a critical role in osteoclast differentiation. Overexpression of miR-214 in BMMs promotes osteoclastogenesis, whereas inhibition of miR-214 attenuates it. We further find that miR-214 functions through PI3K/Akt pathway by targeting phosphatase and tensin homolog (Pten). In vivo, osteoclast specific miR-214 transgenic mice (OC-TG214) exhibit down-regulated Pten levels, increased osteoclast activity, and reduced bone mineral density. These results reveal a crucial role of miR-214 in the differentiation of osteoclasts, which will provide a potential therapeutic target for osteoporosis.
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Key Words
- BMD, bone mineral density
- BMMs, bone marrow monocytes
- BV/TV, ratio of bone volume to tissue volume
- Dnm3os, Dnm3 opposite strand
- M-CSF, macrophage colony stimulating factor
- NFATc1, nuclear factor of activated T-cells cytoplasmic
- OC-TG214, osteoclast specific miR-214 transgenic mice
- PI 3-kinase
- PTEN
- Pten, phosphatase and tensin homolog
- RANKL, receptor activator of nuclear factor-κB ligand
- TRAP, tartrate-resistant acid phosphatase
- Tb.Sp, trabecular spacing
- WT, wild-type
- miRNA
- micro CT, Micro computed tomography
- osteoclast
- osteoporosis
- qRT-PCR, quantitative real-time PCR
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Affiliation(s)
- Chenyang Zhao
- a From Key Laboratory of Molecular and Cellular Biology of Ministry of Education; College of Life Science; Hebei Normal University ; Shijiazhuang , China
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32
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Liu S, Zhu W, Li S, Ma J, Zhang H, Li Z, Zhang L, Zhang B, Li Z, Liang X, Shi W. Bovine parathyroid hormone enhances osteoclast bone resorption by modulating V-ATPase through PTH1R. Int J Mol Med 2015; 37:284-92. [PMID: 26647715 PMCID: PMC4716795 DOI: 10.3892/ijmm.2015.2423] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 12/01/2015] [Indexed: 11/17/2022] Open
Abstract
The vacuolar-type H+ adenosine triphosphatase (V-ATPase) plays an important role in cellular acidification and bone resorption by osteoclasts. However, the direct effect of bovine parathyroid hormone (bPTH) on V-ATPase has not yet been elucidated. The aim of the present study was to assess the effects of bPTH on V-ATPase and osteoclasts. Osteoclasts from bone marrow (BM)-derived monocytes of C57BL/6 mice were cultured with or without bPTH. The mRNA and protein expression levels of the V-ATPase a3-subunit and d2-subunit (by RT-qPCR and western blot analysis), V-ATPase activity (using the V type ATPase Activity Assay kit) and the bone resorption function of osteoclasts (by bone resorption assay) were examined following treatment with various concentrations of bPTH (0.1, 1.0, 10 and 100 ng/ml) alone or with bPTH and its inhibitor, bafilomycin A1. Furthermore, the expression of parathyroid hormone (PTH) receptors in osteoclasts was also detected. The results revealed that the mRNA and protein expression levels of V-ATPase a3-subunit and d2-subunit increased in a dose-dependent manner, paralleling the level of bPTH present. In addition, an increase in the concentration of bPTH was accompanied by the increased resorption capability of osteoclasts, whereas bone resorption was inhibited in the presence of bafilomycin A1. In addition, we confirmed the existence of parathyroid hormone 1 receptor (PTH1R) in osteoclasts using three different methods (RT-qPCR, western blot analysis and immunofluorescence staining). We found that bPTH enhanced the bone resorption capability of osteoclasts by modulating the expression of V-ATPase subunits, intracellular acidification and V-ATPase activity. Thus, we propose that PTH has a direct effect on osteoblasts and osteoclasts, and that this effect is mediated through PTH1R, thus contributing to bone remodeling.
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Affiliation(s)
- Shuangxin Liu
- Department of Nephrology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Weiping Zhu
- Department of Nephrology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong 519000, P.R. China
| | - Sijia Li
- Department of Nephrology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Jianchao Ma
- Department of Nephrology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Huitao Zhang
- Department of Nephrology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong 519000, P.R. China
| | - Zhonghe Li
- Department of Nephrology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong 519000, P.R. China
| | - Li Zhang
- Department of Nephrology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Bin Zhang
- Department of Nephrology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Zhuo Li
- Department of Nephrology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Xinling Liang
- Department of Nephrology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Wei Shi
- Department of Nephrology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
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Cytoplasmic hnRNPK interacts with GSK3β and is essential for the osteoclast differentiation. Sci Rep 2015; 5:17732. [PMID: 26638989 PMCID: PMC4671015 DOI: 10.1038/srep17732] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 11/04/2015] [Indexed: 01/30/2023] Open
Abstract
Osteoclast differentiation is a complex and finely regulated physiological process that involves a variety of signaling pathways and factors. Recent studies suggested that the Ser9 phosphorylation of Glycogen synthase kinase-3β (GSK3β) is required for the osteoclast differentiation. However, the precise underlying mechanism remains unclear. We have previously identified the heterogeneous nuclear ribonucleoprotein K (hnRNPK) as a putative GSK3β interactor. In the present study, we demonstrate that, during the RANKL-induced osteoclast differentiation, the PI3K/Akt-mediated Ser9 phosphorylation of GSK3β provokes the nuclear-cytoplasmic translocation of hnRNPK in an ERK-dependent manner, enhancing the cytoplasmic co-localization and interaction of GSK3β and hnRNPK. We show that hnRNPK is essential for the osteoclast differentiation, and is involved in several reported functions of GSK3β, including the activation of NF-κB, the expression of NFATc1, and the acetylation of tubulin, all known to be critical for osteoclast differentiation and functions. We find that hnRNPK is localized in the actin belt, and is important for the mature osteoclast formation. Taken together, we demonstrate here the critical role of hnRNPK in osteoclast differentiation, and depict a model in which the cytoplasmic hnRNPK interacts with GSK3β and regulates its function.
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The Multiple Roles of Microrna-223 in Regulating Bone Metabolism. Molecules 2015; 20:19433-48. [PMID: 26512640 PMCID: PMC6332311 DOI: 10.3390/molecules201019433] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 10/13/2015] [Accepted: 10/20/2015] [Indexed: 12/23/2022] Open
Abstract
Bone metabolism is a lifelong process for maintaining skeletal system homeostasis, which is regulated by bone-resorbing osteoclasts and bone-forming osteoblasts. Aberrant differentiation of osteoclasts and osteoblasts leads to imbalanced bone metabolism, resulting in ossification and osteolysis diseases. MicroRNAs (miRNAs) are pivotal factors in regulating bone metabolism via post-transcriptional inhibition of target genes. Recent studies have revealed that miR-223 exerts multiple effects on bone metabolism, especially in the processes of osteoclast and osteoblasts differentiation. In this review, we highlight the roles of miR-223 during the processes of osteoclast and osteoblast differentiation, as well as the potential clinical applications of miR-223 in bone metabolism disorders.
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Jing D, Hao J, Shen Y, Tang G, Li ML, Huang SH, Zhao ZH. The role of microRNAs in bone remodeling. Int J Oral Sci 2015. [PMID: 26208037 PMCID: PMC4582559 DOI: 10.1038/ijos.2015.22] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Bone remodeling is balanced by bone formation and bone resorption as well as by alterations in the quantities and functions of seed cells, leading to either the maintenance or deterioration of bone status. The existing evidence indicates that microRNAs (miRNAs), known as a family of short non-coding RNAs, are the key post-transcriptional repressors of gene expression, and growing numbers of novel miRNAs have been verified to play vital roles in the regulation of osteogenesis, osteoclastogenesis, and adipogenesis, revealing how they interact with signaling molecules to control these processes. This review summarizes the current knowledge of the roles of miRNAs in regulating bone remodeling as well as novel applications for miRNAs in biomaterials for therapeutic purposes.
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Affiliation(s)
- Dian Jing
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jin Hao
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yu Shen
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ge Tang
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Mei-Le Li
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shi-Hu Huang
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong, China
| | - Zhi-He Zhao
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Huh JE, Lee WI, Kang JW, Nam D, Choi DY, Park DS, Lee SH, Lee JD. Formononetin attenuates osteoclastogenesis via suppressing the RANKL-induced activation of NF-κB, c-Fos, and nuclear factor of activated T-cells cytoplasmic 1 signaling pathway. JOURNAL OF NATURAL PRODUCTS 2014; 77:2423-31. [PMID: 25397676 DOI: 10.1021/np500417d] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Formononetin (1), a plant-derived phytoestrogen, possesses bone protective properties. To address the potential therapeutic efficacy and mechanism of action of 1, we investigated its antiosteoclastogenic activity and its effect on nuclear factor-kappaB ligand (RANKL)-induced bone-marrow-derived macrophages (BMMs). Compound 1 markedly inhibited RANKL-induced osteoclast differentiation in the absence of cytotoxicity, by regulating the expression of osteoprotegerin (OPG) and RANKL in BMMs and in cocultured osteoblasts. Compound 1 significantly inhibited RANKL-induced tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6, monocyte chemoattractant protein-1 (MCP-1), regulated on activation normal T cell expressed and secreted (RANTES), and macrophage inflammatory protein-1α (MIP-1α) in a concentration-dependent manner. These effects were accompanied by a decrease in RANKL-induced activation of the NF-κB p65 subunit, degradation of inhibitor κBα (IκBα), induction of NF-κB, and phosphorylation of AKT, extracellular-signal regulated kinase (ERK), c-Jun N-terminal kinase (JNK), and p38 mitogen-activated protein kinase (p38 MAPK). NF-κB siRNA suppressed AKT, ERK, JNK, and p38 MAPK phosphorylation. Furthermore, 1 significantly suppressed c-Fos and nuclear factor of activated T-cells cytoplasmic 1 (NFATc1), key transcription factors during osteoclastogenesis. SP600125, a specific inhibitor of JNK, reduced RANKL-induced expression of phospho-c-Jun, c-Fos, and NFATc1 and inhibited osteoclast formation. These results suggested that 1 acted as an antiresorption agent by blocking osteoclast activation.
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Affiliation(s)
- Jeong-Eun Huh
- Oriental Medicine Research Center for Bone and Joint Disease, East-West Bone & Joint Research Institute, Kyung Hee University , 149, Sangil-dong, Gangdong-gu, Seoul, Korea
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Cappariello A, Maurizi A, Veeriah V, Teti A. Reprint of: The Great Beauty of the osteoclast. Arch Biochem Biophys 2014; 561:13-21. [DOI: 10.1016/j.abb.2014.08.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 06/02/2014] [Accepted: 06/05/2014] [Indexed: 12/17/2022]
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Cappariello A, Maurizi A, Veeriah V, Teti A. The Great Beauty of the osteoclast. Arch Biochem Biophys 2014; 558:70-8. [DOI: 10.1016/j.abb.2014.06.017] [Citation(s) in RCA: 148] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 06/02/2014] [Accepted: 06/05/2014] [Indexed: 12/12/2022]
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Zhao X, Xu D, Li Y, Zhang J, Liu T, Ji Y, Wang J, Zhou G, Xie X. MicroRNAs regulate bone metabolism. J Bone Miner Metab 2014; 32:221-31. [PMID: 24311309 DOI: 10.1007/s00774-013-0537-7] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Accepted: 10/26/2013] [Indexed: 12/21/2022]
Abstract
Osteoporosis is caused by an unbalance between bone formation and bone resorption. Bone homeostasis is regulated by intricate mechanisms. Recently, a novel class of regulatory factors termed microRNAs (miRNAs) has been found to play a crucial role in cell cycle control, apoptosis and other cellular processes including metabolism and differentiation. Published data have shown that some miRNAs regulate bone homeostasis, including bone formation, resorption, remodeling, repair and bone-related disease, by regulating the expression of certain cytokines and transcription factors. This review highlights the current knowledge of miRNAs and their involvement in the regulation of bone formation, bone resorption and the pathways regulating the progression of osteoporosis.
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Affiliation(s)
- Xin Zhao
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
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Andreassen KV, Hjuler ST, Furness SG, Sexton PM, Christopoulos A, Nosjean O, Karsdal MA, Henriksen K. Prolonged calcitonin receptor signaling by salmon, but not human calcitonin, reveals ligand bias. PLoS One 2014; 9:e92042. [PMID: 24643196 PMCID: PMC3958426 DOI: 10.1371/journal.pone.0092042] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Accepted: 02/19/2014] [Indexed: 11/23/2022] Open
Abstract
Salmon calcitonin (sCT) and human calcitonin (hCT) are pharmacologically distinct. However, the reason for the differences is unclear. Here we analyze the differences between sCT and hCT on the human calcitonin receptor (CT(a)R) with respect to activation of cAMP signaling, β-arrestin recruitment, ligand binding kinetics and internalization. The study was conducted using mammalian cell lines heterologously expressing the human CT(a) receptor. CT(a)R downstream signaling was investigated with dose response profiles for cAMP production and β-arrestin recruitment for sCT and hCT during short term (<2 hours) and prolonged (up to 72 hours) stimulation. CT(a)R kinetics and internalization was investigated with radio-labeled sCT and hCT ligands on cultured cells and isolated membrane preparations from the same cell line. We found that sCT and hCT are equipotent during short-term stimulations with differences manifesting themselves only during long-term stimulation with sCT inducing a prolonged activation up to 72 hours, while hCT loses activity markedly earlier. The prolonged sCT stimulation of both cAMP accumulation and β-arrestin recruitment was attenuated, but not abrogated by acid wash, suggesting a role for sCT activated internalized receptors. We have demonstrated a novel phenomenon, namely that two distinct CT(a)R downstream signaling activation patterns are activated by two related ligands, thereby highlighting qualitatively different signaling responses in vitro that could have implications for sCT use in vivo.
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Affiliation(s)
| | | | - Sebastian G. Furness
- Drug Discovery Biology and Department of Pharmacology, Monash Institute of Pharmaceutical Sciences, Monash University, Victoria, Australia
| | - Patrick M. Sexton
- Drug Discovery Biology and Department of Pharmacology, Monash Institute of Pharmaceutical Sciences, Monash University, Victoria, Australia
| | - Arthur Christopoulos
- Drug Discovery Biology and Department of Pharmacology, Monash Institute of Pharmaceutical Sciences, Monash University, Victoria, Australia
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Yeon JT, Kim KJ, Choi SW, Moon SH, Park YS, Ryu BJ, Oh J, Kim MS, Erkhembaatar M, Son YJ, Kim SH. Anti-osteoclastogenic activity of praeruptorin A via inhibition of p38/Akt-c-Fos-NFATc1 signaling and PLCγ-independent Ca2+ oscillation. PLoS One 2014; 9:e88974. [PMID: 24586466 PMCID: PMC3931687 DOI: 10.1371/journal.pone.0088974] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Accepted: 01/13/2014] [Indexed: 11/19/2022] Open
Abstract
Background A decrease of bone mass is a major risk factor for fracture. Several natural products have traditionally been used as herbal medicines to prevent and/or treat bone disorders including osteoporosis. Praeruptorin A is isolated from the dry root extract of Peucedanum praeruptorum Dunn and has several biological activities, but its anti-osteoporotic activity has not been studied yet. Materials and Methods The effect of praeruptorin A on the differentiation of bone marrow–derived macrophages into osteoclasts was examined by phenotype assay and confirmed by real-time PCR and immunoblotting. The involvement of NFATc1 in the anti-osteoclastogenic action of praeruptorin A was evaluated by its lentiviral ectopic expression. Intracellular Ca2+ levels were also measured. Results Praeruptorin A inhibited the RANKL-stimulated osteoclast differentiation accompanied by inhibition of p38 and Akt signaling, which could be the reason for praeruptorin A-downregulated expression levels of c-Fos and NFATc1, transcription factors that regulate osteoclast-specific genes, as well as osteoclast fusion-related molecules. The anti-osteoclastogenic effect of praeruptorin A was rescued by overexpression of NFATc1. Praeruptorin A strongly prevented the RANKL-induced Ca2+ oscillation without any changes in the phosphorylation of PLCγ. Conclusion Praeruptorin A could exhibit its anti-osteoclastogenic activity by inhibiting p38/Akt-c-Fos-NFATc1 signaling and PLCγ-independent Ca2+ oscillation.
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Affiliation(s)
- Jeong-Tae Yeon
- Research Institute of Basic Science, Sunchon National University, Suncheon, Republic of Korea
| | - Kwang-Jin Kim
- Research Institute of Basic Science, Sunchon National University, Suncheon, Republic of Korea
| | - Sik-Won Choi
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Division of Drug Discovery Research, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Seong-Hee Moon
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Division of Drug Discovery Research, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
- Department of Biology, Chungnam National University, Daejeon, Republic of Korea
| | - Young Sik Park
- Herbal Medicine Research Division, National Institute of Food & Drug Safety Evaluation, Cheongwon, Republic of Korea
- Graduate School of New Drug Discovery and Development, Chungnam National University, Daejeon, Republic of Korea
| | - Byung Jun Ryu
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Division of Drug Discovery Research, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Jaemin Oh
- Department of Anatomy & Institute for Skeletal Diseases, School of Medicine, Wongkwang University, Iksan, Republic of Korea
| | - Min Seuk Kim
- Department of Oral Physiology, School of Dentistry, Wongkwang University, Iksan, Republic of Korea
| | - Munkhsoyol Erkhembaatar
- Department of Oral Physiology, School of Dentistry, Wongkwang University, Iksan, Republic of Korea
| | - Young-Jin Son
- Research Institute of Basic Science, Sunchon National University, Suncheon, Republic of Korea
- * E-mail: (YJS); (SHK)
| | - Seong Hwan Kim
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Division of Drug Discovery Research, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
- Graduate School of New Drug Discovery and Development, Chungnam National University, Daejeon, Republic of Korea
- * E-mail: (YJS); (SHK)
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Erlandsson MC, Svensson MD, Jonsson IM, Bian L, Ambartsumian N, Andersson S, Peng Z, Vääräniemi J, Ohlsson C, Andersson KME, Bokarewa MI. Expression of metastasin S100A4 is essential for bone resorption and regulates osteoclast function. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2013; 1833:2653-2663. [PMID: 23830916 DOI: 10.1016/j.bbamcr.2013.06.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 05/31/2013] [Accepted: 06/21/2013] [Indexed: 12/20/2022]
Abstract
OBJECTIVE S100A4 is a Ca-binding protein that regulates cell growth, survival, and motility. The abundant expression of S100A4 in rheumatiod arthritis contributes to the invasive growth of joint tissue and to bone damage. In the present study, we analysed the role of S100A4 in bone homeostasis. METHODS Peripheral quantitative computed tomography and histomorphometric analysis were performed in mice lacking the entire S100A4 protein (S100A4KO) and in wild-type (WT) counterparts treated with shRNA-lentiviral constructs targeting S100A4 (S100A4-shRNA). Control groups consisted of sex-matched WT counterparts and WT mice treated with a non-targeting RNA construct. RESULTS S100A4 deficiency was associated with higher trabecular and cortical bone mass, increased number and thickness of trabeculi combined with larger periosteal circumference and higher predicted bone strength. S100A4 inhibition by shRNA led to an increase in cortical bone in WT mice. S100A4-deficieny was associated with a reduced number of functional osteoclasts. S100A4KO and S100A4-shRNA-treated bone marrow progenitors gave rise to a large number of small TRAP+ cells with few nuclei and few pseudopodial processes. Poor osteoclastogenesis and the low resorptive capacity in S100A4Ko mice may be linked to low levels of surface integrins, impaired adhesion capacity, and poor multinucleation in S100A4-deficient osteoclasts, as well as a low content of proteolytic enzymes cathepsin K and MMP3 and MMP9 to break down the organic matrix. CONCLUSION S100A4 emerges as a negative regulator of bone metabolism potentially responsible for the excessive bone turnover in conditions marked by high levels of S100A4 protein, such as inflammation and rheumatoid arthritis.
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Affiliation(s)
- Malin C Erlandsson
- Department of Rheumatology and Inflammation Research at Sahlgrenska Academy, University of Göteborg, Göteborg, Sweden
| | - Mattias D Svensson
- Department of Rheumatology and Inflammation Research at Sahlgrenska Academy, University of Göteborg, Göteborg, Sweden
| | - Ing-Marie Jonsson
- Department of Rheumatology and Inflammation Research at Sahlgrenska Academy, University of Göteborg, Göteborg, Sweden
| | - Li Bian
- Department of Rheumatology and Inflammation Research at Sahlgrenska Academy, University of Göteborg, Göteborg, Sweden
| | | | - Sofia Andersson
- Department of Rheumatology and Inflammation Research at Sahlgrenska Academy, University of Göteborg, Göteborg, Sweden
| | | | | | - Claes Ohlsson
- Center for Bone and Arthritis Research at Sahlgrenska Academy, University of Göteborg, Göteborg, Sweden
| | - Karin M E Andersson
- Department of Rheumatology and Inflammation Research at Sahlgrenska Academy, University of Göteborg, Göteborg, Sweden
| | - Maria I Bokarewa
- Department of Rheumatology and Inflammation Research at Sahlgrenska Academy, University of Göteborg, Göteborg, Sweden.
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Gao B, Zheng L. microRNA Expression in Rat Apical Periodontitis Bone Lesion. Bone Res 2013; 1:170-85. [PMID: 26273501 DOI: 10.4248/br201302006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Accepted: 04/18/2013] [Indexed: 01/08/2023] Open
Abstract
Apical periodontitis, dominated by dense inflammatory infiltrates and increased osteoclast activities, can lead to alveolar bone destruction and tooth loss. It is believed that miRNA participates in regulating various biological processes, osteoclastogenesis included. This study aims to investigate the differential expression of miRNAs in rat apical periodontitis and explore their functional target genes. Microarray analysis was used to identify differentially expressed miRNAs in apical periodontitis. Bioinformatics technique was applied for predicting the target genes of differentially expressed miRNAs and their biological functions. The result provided us with an insight into the potential biological effects of the differentially expressed miRNAs and showed particular enrichment of target genes involved in the MAPK signaling pathways. These findings may highlight the intricate and specific roles of miRNA in inflammation and osteoclastogenesis, both of which are key aspects of apical periodontitis, thus contributing to the future investigation into the etiology, underlying mechanism and treatment of apical periodontitis.
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Affiliation(s)
- Bo Gao
- Department of Pathology, University of Alabama at Birmingham , Birmingham, USA
| | - Liwei Zheng
- Department of Orofacial Sciences, University of California , San Francisco, USA
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Davey RA, Findlay DM. Calcitonin: physiology or fantasy? J Bone Miner Res 2013; 28:973-9. [PMID: 23519892 DOI: 10.1002/jbmr.1869] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 12/13/2012] [Accepted: 01/03/2013] [Indexed: 01/04/2023]
Abstract
Calcitonin, a potent hypocalcemic hormone produced by the C-cells of the thyroid, was first discovered by Harold Copp in 1962. The physiological significance of calcitonin has been questioned, but recent studies using genetically modified mouse models have uncovered additional actions of calcitonin acting through its receptor (CTR) that are of particular significance to the regulation of bone and calcium homeostasis. Mice in which the CTR is deleted in osteoclasts are more susceptible to induced hypercalcemia and exogenous calcitonin is able to lower serum calcium in younger animals. These data are consistent with the hypothesis that calcitonin can regulate serum calcium by inhibiting the efflux of calcium from bone, and that this action is most important when bone turnover is high. Calcitonin has also been implicated in protecting the skeleton from excessive loss of bone mineral during times of high calcium demand, such as lactation. This action may be linked to an intriguing and as yet unexplained observation that calcitonin inhibits bone formation, because deletion of the CTR leads to increased bone formation. We propose several mechanisms by which calcitonin could protect the skeleton by regulating bone turnover, acting within the bone and/or centrally. A new more holistic notion of the physiological role of calcitonin in bone and calcium homeostasis is required and we have highlighted some important knowledge gaps so that future calcitonin research will help to achieve such an understanding.
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Affiliation(s)
- Rachel A Davey
- Department of Medicine, Austin Health, University of Melbourne, Heidelberg, Victoria, Australia.
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Abstract
The ageing skeleton experiences a progressive decline in the rate of bone formation, which can eventually result in osteoporosis--a common disease characterized by reduced bone mass and altered bone microarchitecture which can result in fractures. One emerging therapy involves the identification of molecules that target bone-marrow mesenchymal stromal cells (MSCs) and promote their differentiation into osteoblasts, thereby counteracting bone loss. This Review highlights the discovery that some integrins, a family of heterodimeric transmembrane proteins that can interact with matrix proteins and generate intracellular signals, can be targeted to promote homing of MSCs to bone, osteogenic differentiation and bone formation. Specifically, priming of the α(5)β(1) integrin, which is required for osteoblastic differentiation of MSCs, leads to increased bone formation and improved bone repair in mice. Additionally, treatment with a peptidomimetic ligand of the α(4)β(1) integrin coupled to an agent with a high affinity for bone improves the homing of MSCs to bone and promotes osteoblast differentiation and bone formation, leading to increased bone mass in osteopenic mice. Strategies that target key integrins expressed by MSCs might, therefore, translate into improved therapies for age-related bone loss and possibly other disorders.
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Affiliation(s)
- Pierre J Marie
- Unité Mixte de Recherche 606, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Paris, France.
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Catalfamo DL, Britten TM, Storch DI, Calderon NL, Sorenson HL, Wallet SM. Hyperglycemia induced and intrinsic alterations in type 2 diabetes-derived osteoclast function. Oral Dis 2013; 19:303-12. [PMID: 24079914 PMCID: PMC3800028 DOI: 10.1111/odi.12002] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Revised: 07/09/2012] [Accepted: 07/15/2012] [Indexed: 12/21/2022]
Abstract
UNLABELLED Periodontal disease-associated alveolar bone loss is a comorbidity of type-2-diabetes, where the roles of osteoclasts are poorly understood. OBJECTIVE To evaluate osteoclast differentiation and function in the context of type-2-diabetes. MATERIALS AND METHODS Bone marrow-derived osteoclasts from db/db mice, a model of type-2-diabetes, as well as human osteoclasts derived from peripheral blood of individuals with type-2-diabetes were evaluated for differentiation, resorption, and soluble mediator expression. RESULTS While db/db mice were hyperglycemic at time of cell harvest, human participants were glycemically controlled. Although db/db cultures resulted in a higher number of larger osteoclasts, individual cell receptor activator of nuclear factor kappaB ligand (RANKL)-mediated bone resorption was similar to that observed in diabetes-free osteoclasts. Osteoclasts derived from individuals with type-2-diabetes differentiated similarly to controls with again no difference in bone resorbing capacity. Murine and human type-2-diabetes cultures both displayed inhibition of lipopolysaccharide (LPS)-induced deactivation and increased pro-osteoclastogenic mediator expression. CONCLUSIONS Hyperglycemia plays a role in aberrant osteoclast differentiation leading to an increased capacity for bone resorption. Osteoclasts derived from murine models of and individuals with type-2-diabetes are unable to be inhibited by LPS, again leading to increased capacity for bone resorption. Here, environmental and intrinsic mechanisms associated with the increased alveolar bone loss observed in periodontal patients with type-2-diabetes are described.
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Affiliation(s)
- Dana L. Catalfamo
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL
| | - Todd M. Britten
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL
| | - Douglas I. Storch
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL
| | - Nadia L. Calderon
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL
| | - Heather L. Sorenson
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL
| | - Shannon M. Wallet
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL
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Catalfamo DL, Calderon NL, Harden SW, Sorenson HL, Neiva KG, Wallet SM. Augmented LPS responsiveness in type 1 diabetes-derived osteoclasts. J Cell Physiol 2013; 228:349-61. [PMID: 22718269 DOI: 10.1002/jcp.24138] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Bone abnormalities are frequent co-morbidities of type 1 diabetes (T1D) and are principally mediated by osteoblasts and osteoclasts which in turn are regulated by immunologic mediators. While decreased skeletal health in T1D involves alterations in osteoblast maturation and function, the effect of altered immune function on osteoclasts in T1D-associated bone and joint pathologies is less understood. Here T1D-associated osteoclast-specific differentiation and function in the presence and absence of inflammatory mediators was characterized utilizing bone marrow-derived osteoclasts (BM-OCs) isolated from non-obese diabetic (NOD) mice, a model for spontaneous autoimmune diabetes with pathology similar to individuals with T1D. Differentiation and osteoclast-mediated bone resorption were evaluated along with cathepsin K, MMP-9, and immune soluble mediator expression. The effect of lipopolysaccharide (LPS), a pro-inflammatory cytokine cocktail, and NOD-derived conditioned supernatants on BM-OC function was also determined. Although NOD BM-OCs cultures contained smaller osteoclasts, they resorbed more bone concomitant with increased cathepsin K, MMP-9, and pro-osteoclastogenic mediator expression. NOD BM-OCs also displayed an inhibition of LPS-induced deactivation that was not a result of soluble mediators produced by NOD BM-OCs, although a pro-inflammatory milieu did enhance NOD BM-OCs bone resorption. Together these data indicate that osteoclasts from a T1D mouse model hyper-respond to RANK-L resulting in excessive bone degradation via enhanced cathepsin K and MMP-9 secretion concomitant with an increased expression of pro-osteoclastic soluble mediators. Our data also suggest that inhibition of LPS-induced deactivation in NOD-derived BM-OC cultures is most likely due to NOD osteoclast responsiveness rather than LPS-induced expression of soluble mediators.
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Affiliation(s)
- Dana L Catalfamo
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, Florida 32610, USA
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Baek JM, Park JH, Song JH, Park SN, Jeong WJ, Moon SY, Lee CH, Choi MK, Kim JJ, Oh J, Jang SJ. The Effects of Phlomis umbrosa Turcz on Osteoclast Differentiation. ACTA ACUST UNITED AC 2013. [DOI: 10.11637/kjpa.2013.26.3.115] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jong Min Baek
- Department of Anatomy and Institute for Skeletal Disease, School of Medicine, Wonkwang University, Korea
| | - Ju Ha Park
- Department of Anatomy and Institute for Skeletal Disease, School of Medicine, Wonkwang University, Korea
| | - Jeong Hoon Song
- Plastic & Rconstructive Surgery, School of Medicine, Wonkwang University, Korea
| | - Seong-Nam Park
- Department of Obstetrics and Gynecology, School of Medicine, Wonkwang University, Korea
| | - Woo Jin Jeong
- Department of Anatomy and Institute for Skeletal Disease, School of Medicine, Wonkwang University, Korea
| | - Seo Young Moon
- Division of Anesthesiology and Pain Medicine, Sanbon Medical Center, School of Medicine, Wonkwang University, Korea
| | - Chang Hoon Lee
- Department of Internal Medicine, Division of Rheumatology and Institute of Wonkwang Medical Science, School of Medicine, Wonkwang University, Korea
| | - Min-Kyu Choi
- Department of Anatomy and Institute for Skeletal Disease, School of Medicine, Wonkwang University, Korea
- Institute for Environmental Science, School of Medicine, Wonkwang University, Korea
| | - Jeong Joong Kim
- Department of Anatomy and Institute for Skeletal Disease, School of Medicine, Wonkwang University, Korea
| | - Jaemin Oh
- Department of Anatomy and Institute for Skeletal Disease, School of Medicine, Wonkwang University, Korea
| | - Sung Jo Jang
- Department of Neurosurgery, Gunsan Medical Center, Wonkwang University, Korea
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Sims SM, Panupinthu N, Lapierre DM, Pereverzev A, Dixon SJ. Lysophosphatidic acid: a potential mediator of osteoblast-osteoclast signaling in bone. Biochim Biophys Acta Mol Cell Biol Lipids 2012; 1831:109-16. [PMID: 22892679 DOI: 10.1016/j.bbalip.2012.08.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Accepted: 08/01/2012] [Indexed: 02/05/2023]
Abstract
Osteoclasts (bone resorbing cells) and osteoblasts (bone forming cells) play essential roles in skeletal development, mineral homeostasis and bone remodeling. The actions of these two cell types are tightly coordinated, and imbalances in bone formation and resorption can result in disease states, such as osteoporosis. Lysophosphatidic acid (LPA) is a potent bioactive phospholipid that influences a number of cellular processes, including proliferation, survival and migration. LPA is also involved in wound healing and pathological conditions, such as tumor metastasis and autoimmune disorders. During trauma, activated platelets are likely a source of LPA in bone. Physiologically, osteoblasts themselves can also produce LPA, which in turn promotes osteogenesis. The capacity for local production of LPA, coupled with the proximity of osteoblasts and osteoclasts, leads to the intriguing possibility that LPA acts as a paracrine mediator of osteoblast-osteoclast signaling. Here we summarize emerging evidence that LPA enhances the differentiation of osteoclast precursors, and regulates the morphology, resorptive activity and survival of mature osteoclasts. These actions arise through stimulation of multiple LPA receptors and intracellular signaling pathways. Moreover, LPA is a potent mitogen implicated in promoting the metastasis of breast and ovarian tumors to bone. Thus, LPA released from osteoblasts is potentially an important autocrine and paracrine mediator - physiologically regulating skeletal development and remodeling, while contributing pathologically to metastatic bone disease. This article is part of a Special Issue entitled Advances in Lysophospholipid Research.
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Affiliation(s)
- Stephen M Sims
- Department of Physiology and Pharmacology, The University of Western Ontario, London, Ontario, Canada.
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Kim AR, Kim HS, Lee JM, Choi JH, Kim SN, Kim DK, Kim JH, Mun SH, Kim JW, Jeon HS, Kim YM, Choi WS. Arctigenin suppresses receptor activator of nuclear factor κB ligand (RANKL)-mediated osteoclast differentiation in bone marrow-derived macrophages. Eur J Pharmacol 2012; 682:29-36. [DOI: 10.1016/j.ejphar.2012.02.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Revised: 02/14/2012] [Accepted: 02/15/2012] [Indexed: 01/18/2023]
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