101
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Establishment and Maintenance of the Macrophage Niche. Immunity 2020; 52:434-451. [DOI: 10.1016/j.immuni.2020.02.015] [Citation(s) in RCA: 183] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/21/2020] [Accepted: 02/24/2020] [Indexed: 01/22/2023]
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102
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METTL3 Modulates Osteoclast Differentiation and Function by Controlling RNA Stability and Nuclear Export. Int J Mol Sci 2020; 21:ijms21051660. [PMID: 32121289 PMCID: PMC7084668 DOI: 10.3390/ijms21051660] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/25/2020] [Accepted: 02/25/2020] [Indexed: 11/19/2022] Open
Abstract
Osteoclast differentiation and function are crucial for maintaining bone homeostasis and preserving skeletal integrity. N6-methyladenosine (m6A) is an abundant mRNA modification that has recently been shown to be important in regulating cell lineage differentiation. Nevertheless, the effect of m6A on osteoclast differentiation remains unknown. In the present study, we observed that the m6A level and methyltransferase METTL3 expression increased during osteoclast differentiation. Mettl3 knockdown resulted in an increased size but a decreased bone-resorbing ability of osteoclasts. The expression of osteoclast-specific genes (Nfatc1, c-Fos, Ctsk, Acp5 and Dcstamp) was inhibited by Mettl3 depletion, while the expression of the cellular fusion-specific gene Atp6v0d2 was upregulated. Mechanistically, Mettl3 knockdown elevated the mRNA stability of Atp6v0d2 and the same result was obtained when the m6A-binding protein YTHDF2 was silenced. Moreover, the phosphorylation levels of key molecules in the MAPK, NF-κB and PI3K-AKT signaling pathways were reduced upon Mettl3 deficiency. Depletion of Mettl3 maintained the retention of Traf6 mRNA in the nucleus and reduced the protein levels of TRAF6. Taken together, our data suggest that METTL3 regulates osteoclast differentiation and function through different mechanisms involving Atp6v0d2 mRNA degradation mediated by YTHDF2 and Traf6 mRNA nuclear export. These findings elucidate the molecular basis of RNA epigenetic regulation in osteoclast development.
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103
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Hou H, Peng Q, Wang S, Zhang Y, Cao J, Deng Y, Wang Y, Sun WC, Wang HB. Anemonin Attenuates RANKL-Induced Osteoclastogenesis and Ameliorates LPS-Induced Inflammatory Bone Loss in Mice via Modulation of NFATc1. Front Pharmacol 2020; 10:1696. [PMID: 32116686 PMCID: PMC7025528 DOI: 10.3389/fphar.2019.01696] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 12/30/2019] [Indexed: 12/26/2022] Open
Abstract
Osteoporosis is a metabolic bone disease characterized by insufficient osteoblastic function and/or excessive osteoclastic activity. One promising strategy for treating osteoporosis is inhibiting excessive osteoclast resorbing activity. Previous studies have revealed that anemonin (ANE), isolated from various types of Chinese natural herbs, has anti-inflammatory and anti-oxidative properties. However, whether ANE regulates osteoclastogenesis is unknown. This study aimed to investigate the potential effect of ANE on osteoclastogenesis and inflammatory bone loss in mice. In in vitro studies, ANE suppressed RANKL-stimulated osteoclast differentiation and function by downregulating the expression of osteoclast master transcriptor NFATc1, as well as its upstream transcriptor c-Fos, by decreasing NF-κB and ERK1/2 signaling. Interestingly, ANE did not change the phosphorylation and degradation of IκB-α and activation of JNK and p38 MAPKs. However, ANE repressed the phosphorylation of MSK-1 which is the downstream target of ERK1/2 and p38 MAPK and can phosphorylate NF-κB p65 subunit. These results implicated that ANE might suppress NF-κB activity via modulation of ERK1/2 mediated NF-κB phosphorylation. In addition, ANE directly suppressed NFATc1 transcription by inhibiting Blimp-1 expression, and the subsequent enhancement of the expression of NFATc1 negative regulators, Bcl-6 and IRF-8. Moreover, in vivo studies were conducted using an LPS-induced inflammatory bone loss mice model. Micro-CT and histology analysis showed that ANE treatment significantly improved trabecular bone parameters and bone destruction. These data indicate that ANE can attenuate RANKL-induced osteoclastogenesis and ameliorate LPS-induced inflammatory bone loss in mice through modulation of NFATc1 via ERK1/2-mediated NF-κB phosphorylation and Blimp1 signal pathways. ANE may provide new treatment options for osteoclast-related diseases.
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Affiliation(s)
- Huanhuan Hou
- Key Laboratory of Zoonosis, Ministry of Education, Department of Gynaecology and Obstetrics, China-Japan Union Hospital, Jilin University, Changchun, China
| | - Qisheng Peng
- Key Laboratory of Zoonosis, Ministry of Education, Department of Gynaecology and Obstetrics, China-Japan Union Hospital, Jilin University, Changchun, China
| | - Shaoming Wang
- Department of Endocrinology, Changchun People's Hospital, Changchun, China
| | - Yuxin Zhang
- Key Laboratory of Zoonosis, Ministry of Education, Department of Gynaecology and Obstetrics, China-Japan Union Hospital, Jilin University, Changchun, China
| | - Jinjin Cao
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Yuming Deng
- Key Laboratory of Zoonosis, Ministry of Education, Department of Gynaecology and Obstetrics, China-Japan Union Hospital, Jilin University, Changchun, China
| | - Yingjian Wang
- Key Laboratory of Zoonosis, Ministry of Education, Department of Gynaecology and Obstetrics, China-Japan Union Hospital, Jilin University, Changchun, China
| | - Wan-Chun Sun
- Key Laboratory of Zoonosis, Ministry of Education, Department of Gynaecology and Obstetrics, China-Japan Union Hospital, Jilin University, Changchun, China
| | - Hong-Bing Wang
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
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104
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Kim H, Takegahara N, Walsh MC, Middleton SA, Yu J, Shirakawa J, Ueda J, Fujihara Y, Ikawa M, Ishii M, Kim J, Choi Y. IgSF11 regulates osteoclast differentiation through association with the scaffold protein PSD-95. Bone Res 2020; 8:5. [PMID: 32047704 PMCID: PMC7010662 DOI: 10.1038/s41413-019-0080-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 09/16/2019] [Accepted: 09/19/2019] [Indexed: 01/03/2023] Open
Abstract
Osteoclasts are multinucleated, giant cells derived from myeloid progenitors. While receptor activator of NF-κB ligand (RANKL) stimulation is the primary driver of osteoclast differentiation, additional signaling further contributes to osteoclast maturation. Here, we demonstrate that immunoglobulin superfamily member 11 (IgSF11), whose expression increases during osteoclast differentiation, regulates osteoclast differentiation through interaction with postsynaptic density protein 95 (PSD-95), a scaffold protein with multiple protein interaction domains. IgSF11 deficiency in vivo results in impaired osteoclast differentiation and bone resorption but no observed defect in bone formation. Consequently, IgSF11-deficient mice exhibit increased bone mass. Using in vitro osteoclast culture systems, we show that IgSF11 functions through homophilic interactions. Additionally, we demonstrate that impaired osteoclast differentiation in IgSF11-deficient cells is rescued by full-length IgSF11 and that the IgSF11-PSD-95 interaction requires the 75 C-terminal amino acids of IgSF11. Our findings reveal a critical role for IgSF11 during osteoclast differentiation and suggest a role for IgSF11 in a receptor- and signal transduction molecule-containing protein complex.
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Affiliation(s)
- Hyunsoo Kim
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104 USA
| | - Noriko Takegahara
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104 USA
| | - Matthew C. Walsh
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104 USA
| | - Sarah A. Middleton
- Department of Biology, Department of Computer and Information Science, School of Arts and Sciences, Program in Single Cell Biology, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Jiyeon Yu
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104 USA
| | - Jumpei Shirakawa
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104 USA
| | - Jun Ueda
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871 Japan
| | - Yoshitaka Fujihara
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871 Japan
| | - Masahito Ikawa
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871 Japan
| | - Masaru Ishii
- Department of Immunology and Cell Biology, Graduate School of Medicine and Frontier Biosciences, Osaka University, Suita, Osaka 565-0871 Japan
| | - Junhyong Kim
- Department of Biology, Department of Computer and Information Science, School of Arts and Sciences, Program in Single Cell Biology, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Yongwon Choi
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104 USA
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105
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V-ATPase a3 isoform mutations identified in osteopetrosis patients abolish its expression and disrupt osteoclast function. Exp Cell Res 2020; 389:111901. [PMID: 32045577 DOI: 10.1016/j.yexcr.2020.111901] [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: 09/02/2019] [Revised: 02/05/2020] [Accepted: 02/07/2020] [Indexed: 12/19/2022]
Abstract
The a3 isoform of vacuolar-type proton-pumping ATPase (V-ATPase) is essential for bone resorption by osteoclasts. Although more than 90 mutations of the human a3 gene have been identified in patients with infantile malignant osteopetrosis, it is unclear whether they lead to osteoclast dysfunction. We have established an in vitro assay to induce osteoclasts from spleen macrophages derived from a3-knockout mice. Here, we examined the effects of these mutations in a3-knockout osteoclasts. We were interested in four mutations, two short deletions and two missense mutations, previously identified in the a3 cytosolic domain. a3 harboring either of the two short deletions was hardly expressed in osteoclasts and calcium phosphate resorption was impaired. On the other hand, osteoclasts expressing a3 with either of the two missense mutations exhibited no defects. Specifically, expression levels of the mutant proteins, V-ATPase assembly, and calcium phosphate resorption activity were similar to those of the wild type. Moreover, these missense mutants interacted with Rab7, a small GTPase that regulates lysosomal trafficking. These results suggest that the short deletions impair a3 expression and thus disrupt V-ATPase subunit assembly essential for bone resorption, while the missense mutations do not cause osteoclast dysfunction without an additional mutation(s) or impair resorption of bone, but not of calcium phosphate.
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106
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Kim M, Kim HS, Kim JH, Kim EY, Lee B, Lee SY, Jun JY, Kim MB, Sohn Y, Jung HS. Chaenomelis fructus inhibits osteoclast differentiation by suppressing NFATc1 expression and prevents ovariectomy-induced osteoporosis. BMC Complement Med Ther 2020; 20:35. [PMID: 32024503 PMCID: PMC7076887 DOI: 10.1186/s12906-020-2841-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 01/30/2020] [Indexed: 02/04/2023] Open
Abstract
Background Osteoporosis is related to the number and activity of osteoclasts. The goal of the present study was to demonstrate the effect of Chaenomelis Fructus (CF) on osteoclastogenesis and its mechanism of bone loss prevention in an OVX-induced osteoporosis model. Methods Osteoclasts were induced by RANKL in RAW 264.7 cells. TRAP assay was performed to measure the inhibitory effect of CF on osteoclast differentiation. Then, Expression of nuclear factor of activated T-cells (NFATc1), c-Fos which are essential transcription factors in osteoclastogenesis were detected using western blot and RT-PCR. The osteoclast-related markers were measured by RT-PCR. Moreover, the ability of CF to inhibit bone loss was researched by ovariectomized (OVX)-induced osteoporosis. Results Cell experiments showed that CF inhibited osteoclast differentiation and its function. Immunoblot analyses demonstrated that CF suppressed osteoclastogenesis through the NFATc1 and c-Fos signaling pathways. RT-PCR determined that CF inhibited osteoclast-related markers, such as tartrate-resistant acid phosphatase (TRAP), cathepsin K (CTK), osteoclast-associated immunoglobulin-like receptor (OSCAR), ATPase H+ Transporting V0 Subunit D2 (ATP6v0d2) and carbonic anhydrase II (CA2). In animal experiments, CF showed an inhibitory effect on bone density reduction through OVX. Hematoxylin and eosin (H&E) staining analysis data showed that CF inhibited OVX-induced trabecular area loss. TRAP staining and immunohistochemical staining analysis data showed that CF displayed an inhibitory effect on osteoclast differentiation through NFATc1 inhibition in femoral tissue. Conclusion Based on the results of in vivo and in vitro experiments, CF inhibited the RANKL-induced osteoclasts differentiation and its function and effectively ameliorated OVX-induced osteoporosis rats.
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Affiliation(s)
- Minsun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Ho-Seok Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Jae-Hyun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Eun-Young Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Bina Lee
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Sung Yub Lee
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Jae-Yun Jun
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Min Beom Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Youngjoo Sohn
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Hyuk-Sang Jung
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea.
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107
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Rosillo MA, Montserrat-de-la-Paz S, Abia R, Castejon ML, Millan-Linares MC, Alarcon-de-la-Lastra C, Fernandez-Bolaños JG, Muriana FJG. Oleuropein and its peracetylated derivative negatively regulate osteoclastogenesis by controlling the expression of genes involved in osteoclast differentiation and function. Food Funct 2020; 11:4038-4048. [DOI: 10.1039/d0fo00433b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OL and Per-OL impair transcriptional gene circuits able to support osteoclastogenesis from human blood monocytes.
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Affiliation(s)
- Maria Angeles Rosillo
- Laboratory of Cellular and Molecular Nutrition
- Instituto de la Grasa
- CSIC
- 41013 Seville
- Spain
| | - Sergio Montserrat-de-la-Paz
- Department of Medical Biochemistry
- Molecular Biology and Immunology
- School of Medicine
- University of Seville
- 41009 Seville
| | - Rocio Abia
- Laboratory of Cellular and Molecular Nutrition
- Instituto de la Grasa
- CSIC
- 41013 Seville
- Spain
| | - Maria Luisa Castejon
- Department of Pharmacology
- School of Pharmacy
- University of Seville
- 41012 Seville
- Spain
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108
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Choi Y, Yoo JH, Lee JH, Lee Y, Bae MK, Kim YD, Kim HJ. Connective tissue growth factor (CTGF) regulates the fusion of osteoclast precursors by inhibiting Bcl6 in periodontitis. Int J Med Sci 2020; 17:647-656. [PMID: 32210715 PMCID: PMC7085216 DOI: 10.7150/ijms.41075] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 02/11/2020] [Indexed: 11/28/2022] Open
Abstract
Connective tissue growth factor (CTGF), an extracellular matrix protein with various biological functions, is known to be upregulated in multiple chronic diseases such as liver fibrosis and congestive heart failure, but the mechanism it undertakes to cause alveolar bone loss in periodontitis remains elusive. The present study therefore investigates the pathways involving CTGF in chronic periodontitis. RNA sequencing revealed a notable increase in the expression of CTGF in chronic periodontitis tissues. Also, TRAP staining, TRAP activity and bone resorption assays showed that osteoclast formation and function is significantly facilitated in CTGF-treated bone marrow-derived macrophages (BMMs). Interestingly, western blotting and immunofluorescence staining results displayed that CTGF had little effect on the osteoclastogenic differentiation mediated by the positive regulators of osteoclastogenesis such as nuclear factor of activated T cells 1 (NFATc1). However, following results showed that both the mRNA and protein expressions of B cell lymphoma 6 (Bcl6), a transcriptional repressor of "osteoclastic" genes, were significantly downregulated by CTGF treatment. Moreover, CTGF upregulated the expressions of v-ATPase V0 subunit d2 (ATP6v0d2) and Dendritic cell-specific transmembrane protein (DC-STAMP) which are osteoclastic genes specifically required for osteoclast cell-cell fusion in pre-osteoclasts. Findings from this study suggest that CTGF promotes the fusion of pre-osteoclasts by downregulating Bcl6 and subsequently increasing the expression of DC-STAMP in periodontitis. Understanding this novel mechanism that leads to increased osteoclastogenesis in periodontitis may be employed for the development of new therapeutic targets for preventing periodontitis-associated alveolar bone resorption.
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Affiliation(s)
- YunJeong Choi
- Department of Oral Physiology, BK21 PLUS Project, Periodontal Diseases Signaling Network Research Center, and Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea, 50611
| | - Ji Hyun Yoo
- Department of Oral Physiology, BK21 PLUS Project, Periodontal Diseases Signaling Network Research Center, and Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea, 50611
| | - Jae-Hyung Lee
- Department of Maxillofacial Biomedical Engineering, School of Dentistry, Department of Life and Nanopharmaceutical Sciences, Kyung Hee Medical Science Institute, Kyung Hee University, Seoul, Republic of Korea, 02447
| | - Youngkyun Lee
- Department of Biochemistry, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea, 41940
| | - Moon-Kyoung Bae
- Department of Oral Physiology, BK21 PLUS Project, Periodontal Diseases Signaling Network Research Center, and Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea, 50611
| | - Yong-Deok Kim
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, and Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea, 50611
| | - Hyung Joon Kim
- Department of Oral Physiology, BK21 PLUS Project, Periodontal Diseases Signaling Network Research Center, and Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea, 50611
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109
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Zhou L, Hong G, Li S, Liu Q, Song F, Zhao J, Yuan J, Tickner J, Xu J. Fangchinoline protects against bone loss in OVX mice via inhibiting osteoclast formation, bone resorption and RANKL-induced signaling. Int J Biol Sci 2020; 16:309-319. [PMID: 31929758 PMCID: PMC6949157 DOI: 10.7150/ijbs.37162] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 09/13/2019] [Indexed: 12/19/2022] Open
Abstract
Osteoporosis is a disease characterized by abnormally increased formation and function of osteoclasts. Anti-RANKL treatment using natural medicine is a potential therapy for osteoporosis. Here, we studied the effect of fangchinoline, which is extracted from the root of Stephania tetrandra S. Moore, on osteoclast formation and function. We found that fangchinoline inhibited osteoclastogenesis at doses of 0.5 and 1 µM. In addition, we also examined the mechanism of the inhibitory effect of fangchinoline on osteoclasts. We found that fangchinoline down regulated NFATc1 activity and expression. However, fangchinoline did not affect IκBα degradation and MAPK pathways. In addition, we also found that fangchinoline could protect against bone loss in OVX mice. Taken together, fangchinoline may be a potential compound for osteoporosis.
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Affiliation(s)
- Lin Zhou
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia.,Department of Endocrinology, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510700, China
| | - Guoju Hong
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia.,Orthopedic Department, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Shangfu Li
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia.,Department of Spine Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou Guangdong, 510630, P. R. China
| | - Qian Liu
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia.,Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, 530021, China
| | - Fangming Song
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia.,Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, 530021, China
| | - Jinmin Zhao
- Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, 530021, China
| | - Jinbo Yuan
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia
| | - Jennifer Tickner
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia
| | - Jiake Xu
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia
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110
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Choi MH, Lee K, Kim MY, Shin HI, Jeong D. Pisidium coreanum Inhibits Multinucleated Osteoclast Formation and Prevents Estrogen-Deficient Osteoporosis. Int J Mol Sci 2019; 20:ijms20236076. [PMID: 31810213 PMCID: PMC6929078 DOI: 10.3390/ijms20236076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/28/2019] [Accepted: 11/29/2019] [Indexed: 01/25/2023] Open
Abstract
Mollusks have served as important sources of human food and medicine for a long time. Raw Pisidium coreanum, a freshwater bivalve of the phylum Mollusca, is used in traditional therapies in parts of Asia. However, the therapeutic effects of Pisidium coreanum on bone diseases are not known. We investigated the functional roles of Pisidium coreanum in osteoporotic bone diseases. Pisidium coreanum inhibited the differentiation of bone marrow-derived monocytic cells into mature osteoclasts in vitro. The ovariectomized mice that received oral administration of Pisidium coreanum showed improvements in both trabecular and cortical bones. This preventive activity of Pisidium coreanum against bone loss was due to limited osteoclast maturation with reduced osteoclast surface extent in trabecular bone tissue. The formation of large multinucleated osteoclasts in vitro was significantly decreased in response to Pisidium coreanum, consistent with the reduced expression levels of osteoclast markers and fusion-related genes, such as NFATc1, p65, integrinαvβ3, DC-STAMP, OC-STAMP, Atp6v0d2, FAK, CD44, and MFR. These data suggest that Pisidium coreanum inhibits osteoclast differentiation by negatively regulating the fusion of mononuclear osteoclast precursors. Thus, our data demonstrate the ability of Pisidium coreanum to effectively prevent estrogen-deficient osteoporosis through inhibition of multinucleated osteoclast formation.
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Affiliation(s)
- Mun Hwan Choi
- Department of Microbiology, Laboratory of Bone Metabolism and Control, Yeungnam University College of Medicine, Daegu 42415, Korea; (M.H.C.); (K.L.); (M.Y.K.)
| | - Kyunghee Lee
- Department of Microbiology, Laboratory of Bone Metabolism and Control, Yeungnam University College of Medicine, Daegu 42415, Korea; (M.H.C.); (K.L.); (M.Y.K.)
| | - Mi Yeong Kim
- Department of Microbiology, Laboratory of Bone Metabolism and Control, Yeungnam University College of Medicine, Daegu 42415, Korea; (M.H.C.); (K.L.); (M.Y.K.)
| | - Hong-In Shin
- Department of Oral Pathology, Institute for Hard Tissue and Bio-Tooth Regeneration, School of Dentistry, Kyungpook National University, Daegu 41940, Korea;
| | - Daewon Jeong
- Department of Microbiology, Laboratory of Bone Metabolism and Control, Yeungnam University College of Medicine, Daegu 42415, Korea; (M.H.C.); (K.L.); (M.Y.K.)
- Correspondence: ; Tel.: +82-53-640-6944; Fax: +82-53-657-6869
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111
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Bai HL, Lu ZF, Zhao JJ, Ma X, Li XH, Xu H, Wu SG, Kang CM, Lu JB, Xu YJ, Xiao L, Wu Q, Ye S, Wang Q, Zheng L, Hu YW. Microarray profiling analysis and validation of novel long noncoding RNAs and mRNAs as potential biomarkers and their functions in atherosclerosis. Physiol Genomics 2019; 51:644-656. [PMID: 31682178 PMCID: PMC6962594 DOI: 10.1152/physiolgenomics.00077.2019] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 10/17/2019] [Accepted: 10/29/2019] [Indexed: 02/05/2023] Open
Abstract
Long noncoding (lnc)RNAs have been implicated in the development and progression of atherosclerosis. However, the expression and mechanism of action of lncRNAs in atherosclerosis are still unclear. We implemented microarray analysis in human advanced atherosclerotic plaques and normal arterial intimae to detect the lncRNA and mRNA expression profile. Gene Ontology functional enrichment and pathway analyses were applied to explore the potential functions and pathways involved in the pathogenesis of atherosclerosis. A total of 236 lncRNAs and 488 mRNAs were selected for further Ingenuity Pathway Analysis. Moreover, quantitative RT-PCR tests of most selected lncRNAs and mRNAs with high fold changes were consistent with the microarray data. We also performed ELISA to investigate the corresponding proteins levels of selected genes and showed that serum levels of SPP1, CD36, ATP6V0D2, CHI3L1, MYH11, and BDNF were differentially expressed in patients with coronary heart disease compared with healthy subjects. These proteins correlated with some biochemical parameters used in the diagnosis of cardiovascular diseases. Furthermore, receiver operating characteristic analysis showed a favorable diagnostic performance. The microarray profiling analysis and validation of differentially-expressed lncRNAs and mRNAs in atherosclerosis not only provide new insights into the pathogenesis of this disease but may also reveal new biomarkers for its diagnosis and treatment.
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Affiliation(s)
- Huan-Lan Bai
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhi-Feng Lu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jing-Jing Zhao
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xin Ma
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xue-Heng Li
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Hui Xu
- The Qingyuan Traditional Chinese Medical Hospital of Guangdong Province, Qingyuan, Guangdong, China
| | - Shao-Guo Wu
- Department of Clinical Laboratory, Guangzhou Twelfth People's Hospital, Guangzhou, Guangdong, China
| | - Chun-Min Kang
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jing-Bo Lu
- Department of Vascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yuan-Jun Xu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Lei Xiao
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Qian Wu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Shu Ye
- Department of Cardiovascular Sciences, University of Leicester, Leicester, United Kingdom
- Shantou University Medical College, Shantou, Guangdong, China
| | - Qian Wang
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Lei Zheng
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yan-Wei Hu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Laboratory Medicine Center, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong, China
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112
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Jia Y, Jiang J, Zhao K, Zhang T, Sun P, Peng J, Yang Q, Qian Y. Disulfiram suppressed ethanol promoted RANKL-induced osteoclastogenesis in vitro and ethanol-induced osteoporosis in vivo via ALDH1A1-NFATc1 axis. Aging (Albany NY) 2019; 11:8103-8119. [PMID: 31596733 PMCID: PMC6814600 DOI: 10.18632/aging.102279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 09/05/2019] [Indexed: 12/20/2022]
Abstract
Excessive alcohol consumption is positively related to osteoporosis, and its treatment strategies are poorly developed. Disulfiram inhibits receptor activator of nuclear factor kappa-B ligand (RANKL)-induced osteoclastogenesis; however, whether it can be used for ethanol-induced osteoclastogenesis and its underlying mechanism are still unclear. In this study, we demonstrated that ethanol promoted RANKL-induced osteoclast formation and bone resorption, whereas, disulfiram suppressed ethanol-induced osteoclastogenesis by abrogating the expression of nuclear factor of activated T cell c1 (NFATc1) in vitro. Further analysis revealed that aldehyde dehydrogenase 1A1 (ALDH1A1) is important for the expression of NFATc1, the master regulator of osteoclast differentiation. Furthermore, we showed that disulfiram protected ethanol-induced osteoporosis in vivo. Overall, our study provides promising evidence that disulfiram can be used as a treatment strategy for alcohol-related osteoporosis via the ALDH1A1T–NFATc1 axis.
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Affiliation(s)
- Yewei Jia
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing), Zhejiang 312000, China.,Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 312000, China
| | - Jiawei Jiang
- Department of Urinary Surgery, Jinhua Central Hospital (Jinhua Hospital, Zhejiang University School of Medicine, Jinhua), Zhejiang 321000, China
| | - Kangxian Zhao
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing), Zhejiang 312000, China
| | - Tan Zhang
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing), Zhejiang 312000, China
| | - Peng Sun
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing), Zhejiang 312000, China
| | - Jiaxuan Peng
- Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi 530021, China
| | - Qichang Yang
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing), Zhejiang 312000, China
| | - Yu Qian
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing), Zhejiang 312000, China
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113
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Yu J, Adapala NS, Doherty L, Sanjay A. Cbl-PI3K interaction regulates Cathepsin K secretion in osteoclasts. Bone 2019; 127:376-385. [PMID: 31299383 PMCID: PMC6708784 DOI: 10.1016/j.bone.2019.07.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 07/06/2019] [Accepted: 07/08/2019] [Indexed: 10/26/2022]
Abstract
Effective bone resorption by osteoclasts is critical for balanced bone remodeling. We have previously reported that mice harboring a substitution mutation of tyrosine 737 to phenylalanine in the adapter protein Cbl (CblY737F, YF) have increased bone volume partly due to decreased osteoclast-mediated bone resorption. The CblY737F mutation abrogates interaction between Cbl and the p85 subunit of PI3K. Here, we studied the mechanism for defective resorptive function of YF mutant osteoclasts. The YF osteoclasts had intact actin cytoskeletons and sealing zones. Expression and localization of proteins needed for acidification of the resorptive lacunae were also comparable between the WT and YF osteoclasts. In contrast, secretion of Cathepsin K, a major protease needed to degrade collagen, was diminished in the conditioned media derived from YF osteoclasts. The targeting of Cathepsin K into LAMP2-positive vesicles was also compromised due to decreased number of LAMP2-positive vesicles in YF osteoclasts. Further, we found that in contrast to WT, conditioned media derived from YF osteoclasts promoted increased numbers of alkaline phosphatase positive colonies, and increased expression of osteogenic markers in WT calvarial cultures. Cumulatively, our results suggest that the Cbl-PI3K interaction regulates Cathepsin K secretion required for proper bone resorption, and secretion of factors which promote osteogenesis.
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Affiliation(s)
- Jungeun Yu
- Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030, United States of America
| | - Naga Suresh Adapala
- Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030, United States of America
| | - Laura Doherty
- Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030, United States of America
| | - Archana Sanjay
- Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030, United States of America.
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114
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Sims NA, Martin TJ. Osteoclasts Provide Coupling Signals to Osteoblast Lineage Cells Through Multiple Mechanisms. Annu Rev Physiol 2019; 82:507-529. [PMID: 31553686 DOI: 10.1146/annurev-physiol-021119-034425] [Citation(s) in RCA: 140] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Bone remodeling is essential for the repair and replacement of damaged and old bone. The major principle underlying this process is that osteoclast-mediated resorption of a quantum of bone is followed by osteoblast precursor recruitment; these cells differentiate to matrix-producing osteoblasts, which form new bone to replace what was resorbed. Evidence from osteopetrotic syndromes indicate that osteoclasts not only resorb bone, but also provide signals to promote bone formation. Osteoclasts act upon osteoblast lineage cells throughout their differentiation by facilitating growth factor release from resorbed matrix, producing secreted proteins and microvesicles, and expressing membrane-bound factors. These multiple mechanisms mediate the coupling of bone formation to resorption in remodeling. Additional interactions of osteoclasts with osteoblast lineage cells, including interactions with canopy and reversal cells, are required to achieve coordination between bone formation and resorption during bone remodeling.
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Affiliation(s)
- Natalie A Sims
- Bone Cell Biology and Disease Unit, St. Vincent's Institute of Medical Research, Melbourne, Victoria 3065, Australia; , .,Department of Medicine, The University of Melbourne, St. Vincent's Hospital, Melbourne, Victoria 3065, Australia
| | - T John Martin
- Bone Cell Biology and Disease Unit, St. Vincent's Institute of Medical Research, Melbourne, Victoria 3065, Australia; , .,Department of Medicine, The University of Melbourne, St. Vincent's Hospital, Melbourne, Victoria 3065, Australia
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115
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Lin X, Xiao Y, Chen Z, Ma J, Qiu W, Zhang K, Xu F, Dang K, Qian A. Microtubule actin crosslinking factor 1 (MACF1) knockdown inhibits RANKL-induced osteoclastogenesis via Akt/GSK3β/NFATc1 signalling pathway. Mol Cell Endocrinol 2019; 494:110494. [PMID: 31260729 DOI: 10.1016/j.mce.2019.110494] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/27/2019] [Accepted: 06/27/2019] [Indexed: 01/23/2023]
Abstract
Osteoclasts are responsible for bone resorption and play essential roles in causing bone diseases such as osteoporosis. Microtubule actin crosslinking factor 1 (MACF1) is a large spectraplakin protein that has been implicated in regulating cytoskeletal distribution, cell migration, cell survival and cell differentiation. However, whether MACF1 regulates the differentiation of osteoclasts has not been elucidated. In this study, we found that the expression of MACF1 was increased in primary bone marrow-derived monocytes (BMMs) of osteoporotic mice and was downregulated during receptor activator of nuclear factor kappa-B ligand (RANKL)-induced osteoclastogenesis of pre-osteoclast cell lines RAW264.7 cells. RAW264.7 cells were transfected with shMACF1 using a lentiviral vector to study the role of MACF1 in osteoclastogenic differentiation. Knockdown of MACF1 in RAW264.7 cells inhibited the formation of multinucleated osteoclasts and decreased the expression of osteoclast-marker genes (Ctsk, Acp5, Mmp9 and Oscar) during RANKL-induced osteoclastogenesis. Additionally, knockdown of MACF1 disrupted actin ring formation in osteoclasts and further blocked the bone resorption activity of osteoclasts by reducing the area and depth of pits. Knockdown of MACF1 had no effect on the survival of pre-osteoclasts and mature osteoclasts. We further established that knockdown of MACF1 attenuated the phosphorylation of Akt and GSK3β and inhibited the expression of its downstream target NFATc1. Akt activator rescued the inhibition of osteoclast differentiation by MACF1 knockdown. These data demonstrate that MACF1 positively regulates osteoclast differentiation via the Akt/GSK3β/NFATc1 signalling pathway, suggesting that targeting MACF1 may be a novel therapeutic approach against osteoporosis.
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Affiliation(s)
- Xiao Lin
- Laboratory for Bone Metabolism, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China
| | - Yunyun Xiao
- Laboratory for Bone Metabolism, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China
| | - Zhihao Chen
- Laboratory for Bone Metabolism, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China
| | - Jianhua Ma
- Laboratory for Bone Metabolism, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China
| | - Wuxia Qiu
- Laboratory for Bone Metabolism, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China
| | - Kewen Zhang
- Laboratory for Bone Metabolism, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China
| | - Fang Xu
- Laboratory for Bone Metabolism, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China
| | - Kai Dang
- Laboratory for Bone Metabolism, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China
| | - Airong Qian
- Laboratory for Bone Metabolism, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China.
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116
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Yu J, Canalis E. The Hajdu Cheney mutation sensitizes mice to the osteolytic actions of tumor necrosis factor α. J Biol Chem 2019; 294:14203-14214. [PMID: 31371452 DOI: 10.1074/jbc.ra119.009824] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/29/2019] [Indexed: 11/06/2022] Open
Abstract
Hajdu Cheney syndrome (HCS) is characterized by craniofacial developmental abnormalities, acro-osteolysis, and osteoporosis and is associated with gain-of-NOTCH2 function mutations. A mouse model of HCS termed Notch2tm1.1Ecan harboring a mutation in exon 34 of Notch2 replicating the one found in HCS was used to determine whether the HCS mutation sensitizes the skeleton to the osteolytic effects of tumor necrosis factor α (TNFα). TNFα injected over the calvarial vault caused a greater increase in osteoclast number, osteoclast surface, and eroded surface in Notch2tm1.1Ecan mice compared with littermate WT controls. Accordingly, the effect of TNFα on osteoclastogenesis was greatly enhanced in cultures of bone marrow-derived macrophages (BMMs) from Notch2tm1.1Ecan mice when compared with the activity of TNFα in control cultures. TNFα induced the expression of Notch2 and Notch2 mutant mRNA by ∼2-fold, possibly amplifying the NOTCH2-dependent induction of osteoclastogenesis. The effect of TNFα on osteoclastogenesis in Notch2tm1.1Ecan mutants depended on NOTCH2 activation because it was reversed by anti-NOTCH2 negative regulatory region and anti-jagged 1 antibodies. The inactivation of Hes1 prevented the TNFα effect on osteoclastogenesis in the context of the Notch2tm1.1Ecan mutation. In addition, the induction of Il1b, but not of Tnfa and Il6, mRNA by TNFα was greater in Notch2tm1.1Ecan BMMs than in control cells, possibly contributing to the actions of TNFα and NOTCH2 on osteoclastogenesis. In conclusion, the HCS mutation enhances TNFα-induced osteoclastogenesis and the inflammatory bone-resorptive response possibly explaining the acro-osteolysis observed in affected individuals.
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Affiliation(s)
- Jungeun Yu
- Department of Orthopaedic Surgery, UConn Health, Farmington, Connecticut 06030.,UConn Musculoskeletal Institute, UConn Health, Farmington, Connecticut 06030
| | - Ernesto Canalis
- Department of Orthopaedic Surgery, UConn Health, Farmington, Connecticut 06030 .,UConn Musculoskeletal Institute, UConn Health, Farmington, Connecticut 06030.,Department of Medicine, UConn Health, Farmington, Connecticut 06030
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117
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Kim JH, Kim M, Jung HS, Sohn Y. Leonurus sibiricus L. ethanol extract promotes osteoblast differentiation and inhibits osteoclast formation. Int J Mol Med 2019; 44:913-926. [PMID: 31524244 PMCID: PMC6657961 DOI: 10.3892/ijmm.2019.4269] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 07/05/2019] [Indexed: 12/11/2022] Open
Abstract
Leonurus sibiricus L. (LS) is a medicinal plant used in East Asia, Europe and the USA. LS is primarily used in the treatment of gynecological diseases, and recent studies have demonstrated that it exerts anti-inflammatory and antioxidant effects. To the best of our knowledge, the present study demonstrated for the first time that LS may promote osteoblast differentiation and suppress osteoclast differentiation in vitro, and that it inhibited lipopolysaccharide (LPS)-induced bone loss in a mouse model. LS was observed to promote the osteoblast differentiation of MC3T3-E1 cells and upregulate the expression of runt-related transcription factor 2 (RUNX2), a key gene involved in osteoblast differentiation. This resulted in the induction of the expression of various osteogenic genes, including alkaline phosphatase (ALP), osteonectin (OSN), osteopontin (OPN), type I collagen (COL1) and bone sialoprotein (BSP). LS was also observed to inhibit osteoclast differentiation and bone resorption. The expression levels of nuclear factor of activated T-cells 1 (NFATc1) and c-Fos were inhibited following LS treatment. NFATc1 and c-Fos are key markers of osteoclast differentiation that inhibit receptor activator of nuclear factor-κB ligand (RANKL)-induced mitogen-activated protein kinase (MAPKs) and nuclear factor (NF)-κB. As a result, LS suppressed the expression of osteoclast-associated genes, such as matrix metallopeptidase-9 (MMP-9), cathepsin K (Ctsk), tartrate-resistant acid phosphatase (TRAP), osteoclast-associated immunoglobulin-like receptor (OSCAR), c-src, c-myc, osteoclast stimulatory transmembrane protein (OC-STAMP) and ATPase H+ transporting V0 subunit d2 (ATP6v0d2). Consistent with the in vitro results, LS inhibited the reduction in bone mineral density and the bone volume/total volume ratio in a mouse model of LPS-induced osteoporosis. These results suggest that LS may be a valuable agent for the treatment of osteoporosis and additional bone metabolic diseases.
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Affiliation(s)
- Jae-Hyun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Minsun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hyuk-Sang Jung
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Youngjoo Sohn
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
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118
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Yang J, Guo F, Yuan L, Lv G, Gong J, Chen J. Elevated expression of the V-ATPase D2 subunit triggers increased energy metabolite levels in Kras G12D -driven cancer cells. J Cell Biochem 2019; 120:11690-11701. [PMID: 30746744 DOI: 10.1002/jcb.28448] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/04/2018] [Accepted: 12/06/2018] [Indexed: 01/24/2023]
Abstract
Mutations of the Ras oncogene are frequently detected in human cancers. Among Ras-mediated tumorigenesis, Kras-driven cancers are the most dominant mutation types. Here, we investigated molecular markers related to the Kras mutation, which is involved in energy metabolism in Kras mutant-driven cancer. We first generated a knock-in KrasG12D cell line as a model. The genotype and phenotype of the Kras G12D -driven cells were first confirmed. Dramatically elevated metabolite characterization was observed in Kras G12D -driven cells compared with wild-type cells. Analysis of mitochondrial metabolite-related genes showed that two of the 84 genes in Kras G12D -driven cells differed from control cells by at least twofold. The messenger RNA and protein levels of ATP6V0D2 were significantly upregulated in Kras G12D -driven cells. Knockdown of ATP6V0D2 expression inhibited motility and invasion but did not affect the proliferation of Kras G12D -driven cells. We further investigated ATP6V0D2 expression in tumor tissue microarrays. ATP6V0D2 overexpression was observed in most carcinoma tissues, such as melanoma, pancreas, and kidney. Thus, we suggest that ATP6V0D2, as one of the V-ATPase (vacuolar-type H + -ATPase) subunit isoforms, may be a potential therapeutic target for Kras mutation cancer.
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Affiliation(s)
- Jigang Yang
- Nuclear Medicine Department, Beijing Friendship Hospital, Affiliated to Capital Medical University, Beijing, China
| | - Feihu Guo
- R&D Department, High Tech of Atom Co Ltd, Beijing, China
| | - Leilei Yuan
- Nuclear Medicine Department, Beijing Friendship Hospital, Affiliated to Capital Medical University, Beijing, China
| | - Guangxin Lv
- Department of Biological Sciences, College of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, China
| | - Jianhua Gong
- Oncology Department, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jing Chen
- Department of Biological Sciences, College of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, China
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119
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Zou W, Rohatgi N, Brestoff JR, Zhang Y, Scheller EL, Craft CS, Brodt MD, Migotsky N, Silva MJ, Harris CA, Teitelbaum SL. Congenital lipodystrophy induces severe osteosclerosis. PLoS Genet 2019; 15:e1008244. [PMID: 31233501 PMCID: PMC6611650 DOI: 10.1371/journal.pgen.1008244] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 07/05/2019] [Accepted: 06/12/2019] [Indexed: 12/28/2022] Open
Abstract
Berardinelli-Seip congenital generalized lipodystrophy is associated with increased bone mass suggesting that fat tissue regulates the skeleton. Because there is little mechanistic information regarding this issue, we generated "fat-free" (FF) mice completely lacking visible visceral, subcutaneous and brown fat. Due to robust osteoblastic activity, trabecular and cortical bone volume is markedly enhanced in these animals. FF mice, like Berardinelli-Seip patients, are diabetic but normalization of glucose tolerance and significant reduction in circulating insulin fails to alter their skeletal phenotype. Importantly, the skeletal phenotype of FF mice is completely rescued by transplantation of adipocyte precursors or white or brown fat depots, indicating that adipocyte derived products regulate bone mass. Confirming such is the case, transplantation of fat derived from adiponectin and leptin double knockout mice, unlike that obtained from their WT counterparts, fails to normalize FF bone. These observations suggest a paucity of leptin and adiponectin may contribute to the increased bone mass of Berardinelli-Seip patients.
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Affiliation(s)
- Wei Zou
- Division of Anatomic and Molecular Pathology, Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Nidhi Rohatgi
- Division of Anatomic and Molecular Pathology, Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Jonathan R. Brestoff
- Division of Laboratory and Genomic Medicine, Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Yan Zhang
- Division of Anatomic and Molecular Pathology, Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, United States of America
- Center for Translational Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shanxi, People’s Republic of China
| | - Erica L. Scheller
- Division of Bone and Mineral Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Clarissa S. Craft
- Division of Bone and Mineral Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Michael D. Brodt
- Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Nicole Migotsky
- Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Matthew J. Silva
- Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Charles A. Harris
- Division of Endocrinology, Metabolism, and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Steven L. Teitelbaum
- Division of Anatomic and Molecular Pathology, Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, United States of America
- Division of Bone and Mineral Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
- * E-mail:
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120
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Pessoa CC, Reis LC, Ramos-Sanchez EM, Orikaza CM, Cortez C, de Castro Levatti EV, Badaró ACB, Yamamoto JUDS, D’Almeida V, Goto H, Mortara RA, Real F. ATP6V0d2 controls Leishmania parasitophorous vacuole biogenesis via cholesterol homeostasis. PLoS Pathog 2019; 15:e1007834. [PMID: 31199856 PMCID: PMC6594656 DOI: 10.1371/journal.ppat.1007834] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 06/26/2019] [Accepted: 05/13/2019] [Indexed: 02/07/2023] Open
Abstract
V-ATPases are part of the membrane components of pathogen-containing vacuoles, although their function in intracellular infection remains elusive. In addition to organelle acidification, V-ATPases are alternatively implicated in membrane fusion and anti-inflammatory functions controlled by ATP6V0d2, the d subunit variant of the V-ATPase complex. Therefore, we evaluated the role of ATP6V0d2 in the biogenesis of pathogen-containing vacuoles using ATP6V0d2 knock-down macrophages infected with the protozoan parasite Leishmania amazonensis. These parasites survive within IFNγ/LPS-activated inflammatory macrophages, multiplying in large/fusogenic parasitophorous vacuoles (PVs) and inducing ATP6V0d2 upregulation. ATP6V0d2 knock-down decreased macrophage cholesterol levels and inhibited PV enlargement without interfering with parasite multiplication. However, parasites required ATP6V0d2 to resist the influx of oxidized low-density lipoprotein (ox-LDL)-derived cholesterol, which restored PV enlargement in ATP6V0d2 knock-down macrophages by replenishing macrophage cholesterol pools. Thus, we reveal parasite-mediated subversion of host V-ATPase function toward cholesterol retention, which is required for establishing an inflammation-resistant intracellular parasite niche.
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Affiliation(s)
- Carina Carraro Pessoa
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brasil
| | - Luiza Campos Reis
- Laboratório de Soroepidemiologia e Imunobiologia, Instituto de Medicina Tropical, Universidade de São Paulo, São Paulo, Brasil
| | - Eduardo Milton Ramos-Sanchez
- Laboratório de Soroepidemiologia e Imunobiologia, Instituto de Medicina Tropical, Universidade de São Paulo, São Paulo, Brasil
| | - Cristina Mary Orikaza
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brasil
| | - Cristian Cortez
- Centro de Genómica y Bioinformática, Facultad de Ciencias, Universidad Mayor, Santiago de Chile, Chile
| | | | - Ana Carolina Benites Badaró
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brasil
| | | | - Vânia D’Almeida
- Departamento de Psicobiologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brasil
| | - Hiro Goto
- Laboratório de Soroepidemiologia e Imunobiologia, Instituto de Medicina Tropical, Universidade de São Paulo, São Paulo, Brasil
- Departamento de Medicina Preventiva, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brasil
| | - Renato Arruda Mortara
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brasil
| | - Fernando Real
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brasil
- * E-mail:
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121
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Yu J, Siebel CW, Schilling L, Canalis E. An antibody to Notch3 reverses the skeletal phenotype of lateral meningocele syndrome in male mice. J Cell Physiol 2019; 235:210-220. [PMID: 31188489 DOI: 10.1002/jcp.28960] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/22/2019] [Accepted: 05/24/2019] [Indexed: 12/29/2022]
Abstract
Lateral meningocele syndrome (LMS), a genetic disorder characterized by meningoceles and skeletal abnormalities, is associated with NOTCH3 mutations. We created a mouse model of LMS (Notch3tm1.1Ecan ) by introducing a tandem termination codon in the Notch3 locus upstream of the proline (P), glutamic acid (E), serine (S) and threonine (T) domain. Microcomputed tomography demonstrated that Notch3tm1.1Ecan mice exhibit osteopenia. The cancellous bone osteopenia was no longer observed after the intraperitoneal administration of antibodies directed to the negative regulatory region (NRR) of Notch3. The anti-Notch3 NRR antibody suppressed the expression of Hes1, Hey1, and Hey2 (Notch target genes), and decreased Tnfsf11 (receptor activator of NF Kappa B ligand) messenger RNA in Notch3tm1.1Ecan osteoblast (OB) cultures. Bone marrow-derived macrophages (BMMs) from Notch3tm1.1Ecan mutants exhibited enhanced osteoclastogenesis in culture, and this was increased in cocultures with Notch3tm1.1Ecan OB. Osteoclastogenesis was suppressed by anti-Notch3 NRR antibodies in Notch3tm1.1Ecan OB/BMM cocultures. In conclusion, the cancellous bone osteopenia of Notch3tm1.1Ecan mutants is reversed by anti-Notch3 NRR antibodies.
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Affiliation(s)
- Jungeun Yu
- Department of Orthopaedic Surgery, UConn Health, Farmington, Connecticut.,The UConn Musculoskeletal Institute, UConn Health, Farmington, Connecticut
| | - Christian W Siebel
- Department of Discovery Oncology, Genentech, Inc, South San Francisco, California
| | - Lauren Schilling
- The UConn Musculoskeletal Institute, UConn Health, Farmington, Connecticut
| | - Ernesto Canalis
- Department of Orthopaedic Surgery, UConn Health, Farmington, Connecticut.,The UConn Musculoskeletal Institute, UConn Health, Farmington, Connecticut.,Department of Medicine, UConn Health, Farmington, Connecticut
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122
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Jastrzebski S, Kalinowski J, Mun S, Shin B, Adapala NS, Jacome-Galarza CE, Mirza F, Aguila HL, Drissi H, Sanjay A, Canalis E, Lee SK, Lorenzo JA. Protease-Activated Receptor 1 Deletion Causes Enhanced Osteoclastogenesis in Response to Inflammatory Signals through a Notch2-Dependent Mechanism. THE JOURNAL OF IMMUNOLOGY 2019; 203:105-116. [PMID: 31109956 DOI: 10.4049/jimmunol.1801032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 04/25/2019] [Indexed: 12/29/2022]
Abstract
We found that protease-activated receptor 1 (PAR1) was transiently induced in cultured osteoclast precursor cells. Therefore, we examined the bone phenotype and response to resorptive stimuli of PAR1-deficient (knockout [KO]) mice. Bones and bone marrow-derived cells from PAR1 KO and wild-type (WT) mice were assessed using microcomputed tomography, histomorphometry, in vitro cultures, and RT-PCR. Osteoclastic responses to TNF-α (TNF) challenge in calvaria were analyzed with and without a specific neutralizing Ab to the Notch2-negative regulatory region (N2-NRR Ab). In vivo under homeostatic conditions, there were minimal differences in bone mass or bone cells between PAR1 KO and WT mice. However, PAR1 KO myeloid cells demonstrated enhanced osteoclastogenesis in response to receptor activator of NF-κB ligand (RANKL) or the combination of RANKL and TNF. Strikingly, in vivo osteoclastogenic responses of PAR1 KO mice to TNF were markedly enhanced. We found that N2-NRR Ab reduced TNF-induced osteoclastogenesis in PAR1 KO mice to WT levels without affecting WT responses. Similarly, in vitro N2-NRR Ab reduced RANKL-induced osteoclastogenesis in PAR1 KO cells to WT levels without altering WT responses. We conclude that PAR1 functions to limit Notch2 signaling in responses to RANKL and TNF and moderates osteoclastogenic response to these cytokines. This effect appears, at least in part, to be cell autonomous because enhanced osteoclastogenesis was seen in highly purified PAR1 KO osteoclast precursor cells. It is likely that this pathway is involved in regulating the response of bone to diseases associated with inflammatory signals.
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Affiliation(s)
| | | | - Sehwan Mun
- Center on Aging, UConn Health, Farmington, CT 06030
| | - Bongjin Shin
- Center on Aging, UConn Health, Farmington, CT 06030
| | | | | | - Faryal Mirza
- Department of Medicine, UConn Health, Farmington, CT 06030
| | | | - Hicham Drissi
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA 30329
| | - Archana Sanjay
- Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030
| | - Ernesto Canalis
- Department of Medicine, UConn Health, Farmington, CT 06030.,Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030
| | | | - Joseph A Lorenzo
- Department of Medicine, UConn Health, Farmington, CT 06030; .,Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030
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123
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Bone morphogenetic proteins: Their role in regulating osteoclast differentiation. Bone Rep 2019; 10:100207. [PMID: 31193008 PMCID: PMC6513777 DOI: 10.1016/j.bonr.2019.100207] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 04/09/2019] [Accepted: 05/02/2019] [Indexed: 02/07/2023] Open
Abstract
The ability to create recombinant bone morphogenetic proteins (BMPs) in recent years has led to their rise as a common clinical adjuvant. Their application varies, from spinal fixation to repairing palatal clefts, to coating implants for osseointegration. In recent years questions have been raised as to the efficacy of BMPs in several of these procedures. These questions are due to the unwanted side effect of BMPs on other cell types, such as osteoclasts which can resorb bone at the graft/implant site. However, most BMP research focuses on the anabolic osteoinductive effects of BMPs on osteoblasts rather than its counterpart- stimulation of the osteoclasts, which are cells responsible for resorbing bone. In this review, we discuss the data available from multiple in-vitro and in-vivo BMP-related knockout models to elucidate the different functions BMPs have on osteoclast differentiation and activity. BMPs can act directly on osteoclasts to regulate differentiation and activity. Osteoclasts express multiple BMP signaling components. BMPs signal through both SMAD independent and dependent mechanisms in osteoclasts. SMAD dependent BMP signaling regulates osteoclast-osteoblast coupling factors.
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124
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Zhao K, Jia Y, Peng J, Pang C, Zhang T, Han W, Jiang J, Lu X, Zhu J, Qian Y. Anacardic acid inhibits RANKL-induced osteoclastogenesis in vitro and prevents ovariectomy-induced bone loss in vivo. FASEB J 2019; 33:9100-9115. [PMID: 31050917 DOI: 10.1096/fj.201802575rr] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Postmenopausal osteoporosis is the most common form of primary osteoporosis, and the incidence of the condition is rapidly increasing. In consideration of the limitations of current therapeutic options for the treatment of postmenopausal osteoporosis, there is an urgent need to develop safer alternatives. Anacardic acid, a natural phenolic acid compound extracted from cashew nut shell, possesses potent antitumor and anti-inflammatory effects and inhibits NF-κB signaling. However, its effect on osteoclasts remains unknown. This study reports the first evidence for the antiosteoclastogenic and antiresorptive effects of anacardic acid on bone marrow-derived macrophage-derived osteoclasts. Mechanistically, anacardic acid disrupts the phosphorylation of TGF-β activated kinase 1 and subsequently suppresses multiple receptor activator of NF-κB ligand-induced signaling cascades, ultimately inhibiting the induction and activation of the crucial osteoclast transcriptional factor nuclear factor of activated T-cell cytoplasmic 1. Consistent with cellular results in vitro, anacardic acid treatment improves bone density in the murine model of ovariectomy-induced bone loss. Taken together, our study provides promising evidence for the therapeutic application of anacardic acid as a new potential pharmacological treatment for osteoporosis.-Zhao, K., Jia, Y., Peng, J., Pang, C., Zhang, T., Han, W., Jiang, J., Lu, X., Zhu, J., Qian, Y. Anacardic acid inhibits RANKL-induced osteoclastogenesis in vitro and prevents ovariectomy-induced bone loss in vivo.
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Affiliation(s)
- Kangxian Zhao
- Department of Orthopedics, Shaoxing People's Hospital, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, China.,The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yewei Jia
- Department of Orthopedics, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, China
| | - Jiaxuan Peng
- Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China; and
| | - Cong Pang
- Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China; and
| | - Tan Zhang
- Department of Orthopedics, Shaoxing People's Hospital, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, China
| | - Weiqi Han
- Department of Orthopedics, Shaoxing People's Hospital, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, China
| | - Jiawei Jiang
- Department of Orthopedics, Shaoxing People's Hospital, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, China.,Department of Orthopedics, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, China
| | - Xuanyuan Lu
- Department of Orthopedics, Shaoxing People's Hospital, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, China
| | - Jiling Zhu
- Department of Clinical Medicine, Medical College of Shaoxing University, Shaoxing, China
| | - Yu Qian
- Department of Orthopedics, Shaoxing People's Hospital, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, China.,The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopedics, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, China.,Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China; and
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125
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Hirose T, Cabrera-Socorro A, Chitayat D, Lemonnier T, Féraud O, Cifuentes-Diaz C, Gervasi N, Mombereau C, Ghosh T, Stoica L, Bacha JDA, Yamada H, Lauterbach MA, Guillon M, Kaneko K, Norris JW, Siriwardena K, Blasér S, Teillon J, Mendoza-Londono R, Russeau M, Hadoux J, Ito S, Corvol P, Matheus MG, Holden KR, Takei K, Emiliani V, Bennaceur-Griscelli A, Schwartz CE, Nguyen G, Groszer M. ATP6AP2 variant impairs CNS development and neuronal survival to cause fulminant neurodegeneration. J Clin Invest 2019; 129:2145-2162. [PMID: 30985297 DOI: 10.1172/jci79990] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 03/05/2019] [Indexed: 12/31/2022] Open
Abstract
Vacuolar H+-ATPase-dependent (V-ATPase-dependent) functions are critical for neural proteostasis and are involved in neurodegeneration and brain tumorigenesis. We identified a patient with fulminant neurodegeneration of the developing brain carrying a de novo splice site variant in ATP6AP2 encoding an accessory protein of the V-ATPase. Functional studies of induced pluripotent stem cell-derived (iPSC-derived) neurons from this patient revealed reduced spontaneous activity and severe deficiency in lysosomal acidification and protein degradation leading to neuronal cell death. These deficiencies could be rescued by expression of full-length ATP6AP2. Conditional deletion of Atp6ap2 in developing mouse brain impaired V-ATPase-dependent functions, causing impaired neural stem cell self-renewal, premature neuronal differentiation, and apoptosis resulting in degeneration of nearly the entire cortex. In vitro studies revealed that ATP6AP2 deficiency decreases V-ATPase membrane assembly and increases endosomal-lysosomal fusion. We conclude that ATP6AP2 is a key mediator of V-ATPase-dependent signaling and protein degradation in the developing human central nervous system.
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Affiliation(s)
- Takuo Hirose
- Collège de France, Center for Interdisciplinary Research in Biology, Paris, France
| | - Alfredo Cabrera-Socorro
- INSERM, UMR-S 1270, Paris, France.,Sorbonne Université, Paris, France.,Institut du Fer à Moulin, Paris, France
| | - David Chitayat
- Prenatal Diagnosis and Medical Genetics Program, Department of Obstetrics and Gynecology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada.,Division of Clinical and Metabolic Genetics and.,Department of Diagnostic Imaging, Division of Pediatric Neuroradiology, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Thomas Lemonnier
- INSERM, UMR-S 1270, Paris, France.,Sorbonne Université, Paris, France.,Institut du Fer à Moulin, Paris, France
| | - Olivier Féraud
- INSERM, UMR 935, ESTeam Paris Sud, SFR André Lwoff, Université Paris Sud, Villejuif, France.,Infrastructure Nationale INGESTEM, Université Paris Sud, INSERM, Paris, France
| | - Carmen Cifuentes-Diaz
- INSERM, UMR-S 1270, Paris, France.,Sorbonne Université, Paris, France.,Institut du Fer à Moulin, Paris, France
| | - Nicolas Gervasi
- INSERM, UMR-S 1270, Paris, France.,Sorbonne Université, Paris, France.,Institut du Fer à Moulin, Paris, France
| | - Cedric Mombereau
- INSERM, UMR-S 1270, Paris, France.,Sorbonne Université, Paris, France.,Institut du Fer à Moulin, Paris, France
| | - Tanay Ghosh
- INSERM, UMR-S 1270, Paris, France.,Sorbonne Université, Paris, France.,Institut du Fer à Moulin, Paris, France
| | - Loredana Stoica
- INSERM, UMR-S 1270, Paris, France.,Sorbonne Université, Paris, France.,Institut du Fer à Moulin, Paris, France
| | - Jeanne d'Arc Al Bacha
- Collège de France, Center for Interdisciplinary Research in Biology, Paris, France.,Sorbonne Université, Paris, France.,Institut du Fer à Moulin, Paris, France.,Laboratory of Applied Biotechnology, Azm Center for the Research in Biotechnology and Its Applications, Doctoral School for Sciences and Technology, Lebanese University, Tripoli, Lebanon.,Reviva Regenerative Medicine Center, Human Genetic Center, Middle East Institute of Health Hospital, Bsalim, Lebanon
| | - Hiroshi Yamada
- Department of Neuroscience, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Marcel A Lauterbach
- Wavefront-Engineering Microscopy Group, Neurophotonics Laboratory, CNRS, UMR 8250, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Marc Guillon
- Wavefront-Engineering Microscopy Group, Neurophotonics Laboratory, CNRS, UMR 8250, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Kiriko Kaneko
- Department of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Joy W Norris
- Greenwood Genetic Center, Greenwood, South Carolina, USA
| | | | | | - Jérémie Teillon
- Collège de France, Center for Interdisciplinary Research in Biology, Paris, France.,INSERM, U1050, Paris, France.,CNRS, UMR 7241, Paris, France
| | | | - Marion Russeau
- INSERM, UMR-S 1270, Paris, France.,Sorbonne Université, Paris, France.,Institut du Fer à Moulin, Paris, France
| | - Julien Hadoux
- INSERM, UMR 935, ESTeam Paris Sud, SFR André Lwoff, Université Paris Sud, Villejuif, France.,Infrastructure Nationale INGESTEM, Université Paris Sud, INSERM, Paris, France
| | - Sadayoshi Ito
- Division of Nephrology, Endocrinology and Vascular Medicine, Department of Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Pierre Corvol
- Collège de France, Center for Interdisciplinary Research in Biology, Paris, France.,INSERM, U1050, Paris, France.,CNRS, UMR 7241, Paris, France
| | | | - Kenton R Holden
- Department of Radiology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Kohji Takei
- Department of Neuroscience, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Valentina Emiliani
- Wavefront-Engineering Microscopy Group, Neurophotonics Laboratory, CNRS, UMR 8250, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Annelise Bennaceur-Griscelli
- INSERM, UMR 935, ESTeam Paris Sud, SFR André Lwoff, Université Paris Sud, Villejuif, France.,Infrastructure Nationale INGESTEM, Université Paris Sud, INSERM, Paris, France.,Faculté de Médecine, Kremlin-Bicêtre, Université Paris Sud, Paris Saclay, France.,AP-HP, Service d'Hématologie, Hôpitaux Universitaires Paris Sud, Hôpital Paul Brousse, Villejuif, France
| | | | - Genevieve Nguyen
- Collège de France, Center for Interdisciplinary Research in Biology, Paris, France.,INSERM, U1050, Paris, France.,CNRS, UMR 7241, Paris, France
| | - Matthias Groszer
- INSERM, UMR-S 1270, Paris, France.,Sorbonne Université, Paris, France.,Institut du Fer à Moulin, Paris, France
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126
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Nakano S, Inoue K, Xu C, Deng Z, Syrovatkina V, Vitone G, Zhao L, Huang XY, Zhao B. G-protein Gα 13 functions as a cytoskeletal and mitochondrial regulator to restrain osteoclast function. Sci Rep 2019; 9:4236. [PMID: 30862896 PMCID: PMC6414604 DOI: 10.1038/s41598-019-40974-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 02/19/2019] [Indexed: 12/13/2022] Open
Abstract
Excessive osteoclastic bone erosion disrupts normal bone remodeling and leads to bone loss in many skeletal diseases, including inflammatory arthritis, such as rheumatoid arthritis (RA) and psoriatic arthritis, periodontitis and peri-prosthetic loosening. Functional control of osteoclasts is critical for the maintenance of bone homeostasis. However, the mechanisms that restrain osteoclast resorptive function are not fully understood. In this study, we identify a previously unrecognized role for G-protein Gα13 in inhibition of osteoclast adhesion, fusion and bone resorptive function. Gα13 is highly expressed in mature multinucleated osteoclasts, but not during early differentiation. Deficiency of Gα13 in myeloid osteoclast lineage (Gα13ΔM/ΔM mice) leads to super spread morphology of multinucleated giant osteoclasts with elevated bone resorptive capacity, corroborated with an osteoporotic bone phenotype in the Gα13ΔM/ΔM mice. Mechanistically, Gα13 functions as a brake that restrains the c-Src, Pyk2, RhoA-Rock2 mediated signaling pathways and related gene expressions to control the ability of osteoclasts in fusion, adhesion, actin cytoskeletal remodeling and resorption. Genome wide analysis reveals cytoskeleton related genes that are suppressed by Gα13, identifying Gα13 as a critical cytoskeletal regulator in osteoclasts. We also identify a genome wide regulation of genes responsible for mitochondrial biogenesis and function by Gα13 in osteoclasts. Furthermore, the significant correlation between Gα13 expression levels, TNF activity and RA disease activity in RA patients suggests that the Gα13 mediated mechanisms represent attractive therapeutic targets for diseases associated with excessive bone resorption.
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Affiliation(s)
- Shinichi Nakano
- Arthritis and Tissue Degeneration Program and The David Z, Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA
| | - Kazuki Inoue
- Arthritis and Tissue Degeneration Program and The David Z, Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA
- Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Cheng Xu
- Arthritis and Tissue Degeneration Program and The David Z, Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA
| | - Zhonghao Deng
- Arthritis and Tissue Degeneration Program and The David Z, Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA
- Department of Orthopedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Viktoriya Syrovatkina
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, New York, USA
| | - Gregory Vitone
- Arthritis and Tissue Degeneration Program and The David Z, Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA
| | - Liang Zhao
- Department of Orthopedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xin-Yun Huang
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, New York, USA
| | - Baohong Zhao
- Arthritis and Tissue Degeneration Program and The David Z, Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA.
- Department of Medicine, Weill Cornell Medical College, New York, New York, USA.
- Graduate Program in Cell & Developmental Biology, Weill Cornell Graduate School of Medical Sciences, New York, New York, USA.
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127
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Zhou L, Liu Q, Hong G, Song F, Zhao J, Yuan J, Xu J, Tan RX, Tickner J, Gu Q, Xu J. Cumambrin A prevents OVX-induced osteoporosis via the inhibition of osteoclastogenesis, bone resorption, and RANKL signaling pathways. FASEB J 2019; 33:6726-6735. [PMID: 30807230 DOI: 10.1096/fj.201800883rrr] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Being the principal cells responsible for bone resorption and pathologic bone loss, osteoclasts have become the main target for antiresorptive treatment. Cumambrin A is a natural compound isolated from Chrysanthemum indicum L. and belongs to a member of the sesquiterpene lactone family. To date, the therapeutic effect of cumambrin A on osteoporosis and its mechanisms of action are not known. In this study, we found that cumambrin A can significantly inhibit osteoclast formation and bone resorption through the suppression of receptor activator of NF-κB ligand (RANKL)-induced NF-κB and nuclear factor of activated T-cell activity and ERK phosphorylation. Furthermore, cumambrin A inhibits the expression of osteoclast marker genes including cathepsin K, calcitonin receptor, and V-ATPase d2. Using an in vivo ovariectomized mouse model, we showed that cumambrin A protects against estrogen withdrawal-induced bone loss. Collectively, our results reveal that cumambrin A can suppress osteoclast formation, bone resorption, and RANKL-induced signaling pathways, suggesting that cumambrin A is a potential therapeutic agent for the treatment of osteoporosis.-Zhou, L., Liu, Q., Hong, G., Song, F., Zhao, J., Yuan, J., Xu, J., Tan, R. X., Tickner, J., Gu, Q., Xu, J. Cumambrin A prevents OVX-induced osteoporosis via the inhibition of osteoclastogenesis, bone resorption, and RANKL signaling pathways.
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Affiliation(s)
- Lin Zhou
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia.,Department of Endocrinology, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Qian Liu
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia.,Research Centre for Regenerative Medicine, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
| | - Guoju Hong
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia.,Orthopedic Department, The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Fangming Song
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia.,Research Centre for Regenerative Medicine, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
| | - Jinmin Zhao
- Research Centre for Regenerative Medicine, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
| | - Jinbo Yuan
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Ren Xiang Tan
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, Nanjing University, Nanjing, China
| | - Jennifer Tickner
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Jiake Xu
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia
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128
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Lycopus lucidus Turcz Inhibits the Osteoclastogenesis in RAW 264.7 Cells and Bone Loss in Ovariectomized Rat Model. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:3231784. [PMID: 30915145 PMCID: PMC6409043 DOI: 10.1155/2019/3231784] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/24/2018] [Accepted: 11/04/2018] [Indexed: 12/18/2022]
Abstract
Lycopus lucidus (LL) is a perennial herb that is traditionally used in Asia to treat edema, wound healing, and gynecological diseases such as irregular menstruation and menstrual pain. We hypothesized that LL would decrease the risk of developing osteoporosis, which is a condition related to gynecological diseases. In this study, we aimed to investigate the effect of a water extract of LL on osteoclastogenesis in vitro and osteoporosis in vivo. In vitro study, we used RAW 264.7 cells as osteoclast precursor cell. Osteoclast differentiation was induced by receptor activator nuclear factor-kappa B ligand (RANKL). We investigated the effect of LL on RANKL-induced osteoclastogenesis, tartrate-resistant acid phosphatase (TRAP) activity, and osteoclast-related genes. In vivo study, we used ovariectomized- (OVX-) induced osteoporosis rat model. OVX-induced Sprague-Dawley rats were randomly separated into sham, OVX, 17β-estradiol (100 μg/kg), wLL-L (15.2 mg/kg), and wLL-H (152 mg/kg) groups. Drugs were administered orally once daily for 9 weeks. wLL inhibited the formation of TRAP-positive osteoclasts; TRAP activity; pit formation; transcription factors (the nuclear factor of activated T-cell cytoplasmic 1 and c-fos); and osteoclast-related genes such as TRAP, carbonic anhydrase II, cathepsin K, osteoclast-associated receptor, and the d2 isoform of the vacuolar ATPase Vo domain. Also, wLL prevented loss of the trabecular area in the OVX femur without change of estrogen level. These results indicate that wLL is able to inhibit osteoclastogenesis and protect bone loss in the OVX-induced osteoporosis model without the influence of hormones like estrogen.
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129
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Jiang J, Jia Y, Lu X, Zhang T, Zhao K, Fu Z, Pang C, Qian Y. Vitexin suppresses RANKL-induced osteoclastogenesis and prevents lipopolysaccharide (LPS)-induced osteolysis. J Cell Physiol 2019; 234:17549-17560. [PMID: 30793311 DOI: 10.1002/jcp.28378] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/24/2019] [Accepted: 01/28/2019] [Indexed: 01/10/2023]
Abstract
Osteolytic diseases are characterized by an increase in the number and/or activity of bone-resorbing osteoclasts. Identification of natural compounds that can suppress osteoclast formation and function is crucial for the prevention and treatment of osteolytic diseases. Vitexin, a naturally-derived flavonoid extracted from various medicinal plant species, demonstrates a broad range of pharmacological properties including anticancer and anti-inflammatory effects. Here in this study, we showed that vitexin exerts antiosteoclastogenic effects by directly inhibiting receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclast formation and bone resorption in vitro and protected against lipopolysaccharide (LPS)-induced inflammatory osteolysis in vivo. Vitexin suppressed the early activation of ERK and p38 MAPK pathways in response to RANKL thereby attenuating the downstream induction of c-Fos and NFATc1, and abrogating the expression of osteoclast marker genes. Collectively, these results provide evidence for the therapeutic application of vitexin in the treatment of osteoclast-mediated bone lytic diseases.
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Affiliation(s)
- Jiawei Jiang
- Department of Orthopaedics, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, Zhejiang, China.,Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing, Zhejiang, China.,Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yewei Jia
- Department of Orthopaedics, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, Zhejiang, China.,Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing, Zhejiang, China.,Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Xuanyuan Lu
- Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing, Zhejiang, China
| | - Tan Zhang
- Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing, Zhejiang, China
| | - Kangxian Zhao
- Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing, Zhejiang, China
| | - Ziyuan Fu
- Department of Orthopaedics, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, Zhejiang, China.,Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing, Zhejiang, China.,Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Cong Pang
- Department of Orthopaedics, The Ninth Affiliated Hospital of Guangxi Medical University, Beihai, Guangxi, China
| | - Yu Qian
- Department of Orthopaedics, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, Zhejiang, China.,Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing, Zhejiang, China
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130
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Li R, Andersen CL, Hu L, Wang Z, Li Y, Nagy T, Ye X. Dietary exposure to mycotoxin zearalenone (ZEA) during post-implantation adversely affects placental development in mice. Reprod Toxicol 2019; 85:42-50. [PMID: 30772436 DOI: 10.1016/j.reprotox.2019.01.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 01/02/2019] [Accepted: 01/23/2019] [Indexed: 02/06/2023]
Abstract
Zearalenone (ZEA) is a common food contaminant (ppb-ppm) derived from Fusarium fungi. With its estrogenicity and potential chronic exposure, ZEA poses a risk to pregnancy. Our previous studies implied post-implantational lethality by ZEA. Since a functional placenta is essential for fetal development and survival, it was hypothesized that ZEA may have adverse effects on placental development leading to post-implantational lethality. Exposure of young mice to 0, 0.8, 4, 10, and 40 ppm ZEA diets from gestation day 5.5 (D5.5) to D13.5 led to increased resorption of implantation sites, increased placental hemorrhage, decreased placental and fetal weights, proportionally reduced placental layers, and disorganized placental labyrinth vascular spaces in the 40 ppm ZEA group, as well as lipid accumulation in the labyrinth layer of all four ZEA treatment groups examined on D13.5. These data demonstrate adverse effects of ZEA on placental development.
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Affiliation(s)
- Rong Li
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA; Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, USA; Reproductive Developmental Biology Group, National Institute of Environmental Health Sciences (NIEHS/NIH), 111 TW Alexander Drive, Research Triangle Park, NC 27709, USA.
| | - Christian Lee Andersen
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA; Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, USA.
| | - Lianmei Hu
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA; College of Veterinary Medicine, South China Agriculture University, Guangzhou, 510642, China.
| | - Zidao Wang
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA; Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, USA.
| | - Yuehuan Li
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA; Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, USA.
| | - Tamas Nagy
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA.
| | - Xiaoqin Ye
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA; Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, USA.
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131
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Combined Extracts of Herba Epimedii and Fructus Ligustri Lucidi Rebalance Bone Remodeling in Ovariectomized Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:1596951. [PMID: 30894875 PMCID: PMC6393883 DOI: 10.1155/2019/1596951] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 01/12/2019] [Accepted: 02/05/2019] [Indexed: 01/09/2023]
Abstract
This study aimed to investigate the osteoprotective effect and the possible molecular mechanisms of the combined extracts of Herba Epimedii and Fructus Ligustri Lucidi on postmenopausal osteoporosis (PMOP). Forty-eight female SD rats were sham-operated (Sham, n = 8) or ovariectomized (OVX, n = 40). Then after a week, OVX rats were divided randomly into five groups (n = 8 in each group): OVX, extracts of Herba Epimedii (HE, 0.35 g/kg), extracts of Fructus Ligustri Lucidi (FLL, 0.35 g/kg), combined extracts of HE and FLL (HE & FLL, 0.20 g/kg HE plus 0.15 g/kg FLL), and Raloxifene hydrochloride (RH, 6.25 mg/kg) groups. All groups were administered once daily for 12 weeks. Indicators related to bone remodeling were detected, including estradiol (E2), bone mineral density (BMD), maximal load, ultimate deflection, micro-CT properties, tartrate-resistant acid phosphatase (TRACP) and alkaline phosphatase (ALP) levels in serum and bone, and the protein and mRNA expression of bone turnover markers (RANKL, M-CSF, Wnt5a, Atp6v0d2, OPG, IGF-1, TGF-β1, and Bmp-2). Results showed that the combined extracts could increase serum E2 levels and BMD, enhance bone strength, reserve bone microstructure degeneration, promote bone formation, and inhibit bone resorption through upregulating the mRNA and protein expression of OPG, IGF-1, TGF-β1, and Bmp-2, while downregulating RANKL, M-CSF, Wnt5a, and Atp6v0d2. These findings demonstrated that the combined extracts of Herba Epimedii and Fructus Ligustri Lucidi with bone protective effects on OVX rats might be an alternative medicine for the treatment of PMOP.
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132
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Plotkin LI, Bruzzaniti A. Molecular signaling in bone cells: Regulation of cell differentiation and survival. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2019; 116:237-281. [PMID: 31036293 PMCID: PMC7416488 DOI: 10.1016/bs.apcsb.2019.01.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The achievement of proper bone mass and architecture, and their maintenance throughout life requires the concerted actions of osteoblasts, the bone forming cells, and osteoclasts, the bone resorbing cells. The differentiation and activity of osteoblasts and osteoclasts are regulated by molecules produced by matrix-embedded osteocytes, as well as by cross talk between osteoblasts and osteoclasts through secreted factors. In addition, it is likely that direct contact between osteoblast and osteoclast precursors, and the contact of these cells with osteocytes and cells in the bone marrow, also modulates bone cell differentiation and function. With the advancement of molecular and genetic tools, our comprehension of the intracellular signals activated in bone cells has evolved significantly, from early suggestions that osteoblasts and osteoclasts have common precursors and that osteocytes are inert cells in the bone matrix, to the very sophisticated understanding of a network of receptors, ligands, intracellular kinases/phosphatases, transcription factors, and cell-specific genes that are known today. These advances have allowed the design and FDA-approval of new therapies to preserve and increase bone mass and strength in a wide variety of pathological conditions, improving bone health from early childhood to the elderly. We have summarized here the current knowledge on selected intracellular signal pathways activated in osteoblasts, osteocytes, and osteoclasts.
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Affiliation(s)
- Lilian I Plotkin
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States; Roudebush Veterans Administration Medical Center, Indianapolis, IN, United States.
| | - Angela Bruzzaniti
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States; Department of Biomedical and Applied Sciences, Indiana University School of Dentistry, Indianapolis, IN, United States
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133
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Xia Y, Liu N, Xie X, Bi G, Ba H, Li L, Zhang J, Deng X, Yao Y, Tang Z, Yin B, Wang J, Jiang K, Li Z, Choi Y, Gong F, Cheng X, O'Shea JJ, Chae JJ, Laurence A, Yang XP. The macrophage-specific V-ATPase subunit ATP6V0D2 restricts inflammasome activation and bacterial infection by facilitating autophagosome-lysosome fusion. Autophagy 2019; 15:960-975. [PMID: 30681394 DOI: 10.1080/15548627.2019.1569916] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Macroautophagy/autophagy is a conserved ubiquitous pathway that performs diverse roles in health and disease. Although many key, widely expressed proteins that regulate autophagosome formation followed by lysosomal fusion have been identified, the possibilities of cell-specific elements that contribute to the autophagy fusion machinery have not been explored. Here we show that a macrophage-specific isoform of the vacuolar ATPase protein ATP6V0D2/subunit d2 is dispensable for lysosome acidification, but promotes the completion of autophagy via promotion of autophagosome-lysosome fusion through its interaction with STX17 and VAMP8. Atp6v0d2-deficient macrophages have augmented mitochondrial damage, enhanced inflammasome activation and reduced clearance of Salmonella typhimurium. The susceptibility of atp6v0d2 knockout mice to DSS-induced colitis and Salmonella typhimurium-induced death, highlights the in vivo significance of ATP6V0D2-mediated autophagosome-lysosome fusion. Together, our data identify ATP6V0D2 as a key component of macrophage-specific autophagosome-lysosome fusion machinery maintaining macrophage organelle homeostasis and, in turn, limiting both inflammation and bacterial infection. Abbreviations: ACTB/β-actin: actin, beta; ATG14: autophagy related 14; ATG16L1: autophagy related 16-like 1 (S. cerevisiae); ATP6V0D1/2: ATPase, H+ transporting, lysosomal V0 subunit D1/2; AIM2: absent in melanoma 2; BMDM: bone marrow-derived macrophage; CASP1: caspase 1; CGD: chronic granulomatous disease; CSF1/M-CSF: colony stimulating factor 1 (macrophage); CTSB: cathepsin B; DSS: dextran sodium sulfate; IL1B: interleukin 1 beta; IL6: interleukin 6; IRGM: immunity-related GTPase family M member; KO: knockout; LAMP1: lysosomal-associated membrane protein 1; LC3: microtubule-associated protein 1 light chain 3; LPS: lipo-polysaccaride; NLRP3: NLR family, pyrin domain containing 3; PYCARD/ASC: PYD and CARD domain containing; SNARE: soluble N-ethylmaleimide-sensitive factor attachment protein receptor; SNAP29: synaptosomal-associated protein 29; SQSTM1/p62: sequestosome 1; STX17: syntaxin 17; TLR: toll-like receptor; TNF: tumor necrosis factor ; TOMM20: translocase of outer mitochondrial membrane 20; ULK1: unc-51 like kinase 1; VAMP8: vesicle-associated membrane protein 8; WT: wild type; 3-MA: 3-methyladenine.
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Affiliation(s)
- Yu Xia
- a Department of Immunology , School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - Na Liu
- a Department of Immunology , School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - Xiuxiu Xie
- a Department of Immunology , School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - Guoyu Bi
- a Department of Immunology , School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - Hongping Ba
- a Department of Immunology , School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - Lin Li
- a Department of Immunology , School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - Jinxia Zhang
- a Department of Immunology , School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - Xiaofei Deng
- a Department of Immunology , School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - Yao Yao
- b Department of Surgery, Tongji Hospital , Huazhong University of Science and Technology , Wuhan , China
| | - Zhaohui Tang
- b Department of Surgery, Tongji Hospital , Huazhong University of Science and Technology , Wuhan , China
| | - Binjiao Yin
- a Department of Immunology , School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - Jing Wang
- a Department of Immunology , School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - Kan Jiang
- c Lymphocyte Cell Biology Section , NIAMS, NIH , Bethesda , MD , USA
| | - Zhuoya Li
- a Department of Immunology , School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - Yongwon Choi
- d Perelman School of Medicine , University of Pennsylvania , Philadelphia , PA , USA
| | - Feili Gong
- a Department of Immunology , School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - Xiang Cheng
- e Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital , Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - John J O'Shea
- c Lymphocyte Cell Biology Section , NIAMS, NIH , Bethesda , MD , USA
| | - Jae Jin Chae
- f Inflammatory Disease Section , NHGRI, NIH , Bethesda , MD , USA
| | - Arian Laurence
- g Translational Gastroentology Unit, Nuffield department of medicine, John Radcliffe Hospital , University of Oxford , Oxford , UK
| | - Xiang-Ping Yang
- a Department of Immunology , School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
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134
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Tao SC, Guo SC. Extracellular vesicles in bone: "dogrobbers" in the "eternal battle field". Cell Commun Signal 2019; 17:6. [PMID: 30658653 PMCID: PMC6339294 DOI: 10.1186/s12964-019-0319-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 01/06/2019] [Indexed: 02/07/2023] Open
Abstract
Throughout human life, bone is constantly in a delicate dynamic equilibrium of synthesis and resorption, hosting finely-tuned bone mineral metabolic processes for bone homeostasis by collaboration or symphony among several cell types including osteoclasts (OCs), osteoblasts (OBs), osteocytes (OYs), vascular endothelial cells (ECs) and their precursors. Beyond these connections, a substantial level of communication seems to occur between bone and other tissues, and together, they form an organic unit linked to human health and disease. However, the current hypothesis, which includes growth factors, hormones and specific protein secretion, incompletely explains the close connections among bone cells or between bone and other tissues. Extracellular vesicles (EVs) are widely-distributed membrane structures consisting of lipid bilayers, membrane proteins and intravesicular cargo (including proteins and nucleic acids), ranging from 30 nm to 1000 nm in diameter, and their characters have been highly conserved throughout evolution. EVs have targeting abilities and the potential to transmit multidimensional, abundant and complicated information, as powerful and substantial "dogrobbers" mediating intercellular communications. As research has progressed, EVs have gradually become thought of as "dogrobbers" in bone tissue-the "eternal battle field" -in a delicate dynamic balance of destruction and reconstruction. In the current review, we give a brief description of the major constituent cells in bone tissues and explore the progress of current research on bone-derived EVs. In addition, this review also discusses in depth not only potential directions for future research to breakthrough in this area but also problems existing in current research that need to be solved for a better understanding of bone tissues.
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Affiliation(s)
- Shi-Cong Tao
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China.
| | - Shang-Chun Guo
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China.
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135
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Bae SJ, Shin MW, Son T, Lee HS, Chae JS, Jeon S, Oh GT, Kim KW. Ninjurin1 positively regulates osteoclast development by enhancing the survival of prefusion osteoclasts. Exp Mol Med 2019; 51:1-16. [PMID: 30700695 PMCID: PMC6353902 DOI: 10.1038/s12276-018-0201-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 08/27/2018] [Accepted: 08/29/2018] [Indexed: 01/20/2023] Open
Abstract
Osteoclasts (OCs) are bone-resorbing cells that originate from hematopoietic stem cells and develop through the fusion of mononuclear myeloid precursors. Dysregulation of OC development causes bone disorders such as osteopetrosis, osteoporosis, and rheumatoid arthritis. Although the molecular mechanisms underlying osteoclastogenesis have been well established, the means by which OCs maintain their survival during OC development remain unknown. We found that Ninjurin1 (Ninj1) expression is dynamically regulated during osteoclastogenesis and that Ninj1-/- mice exhibit increased trabecular bone volume owing to impaired OC development. Ninj1 deficiency did not alter OC differentiation, transmigration, fusion, or actin ring formation but increased Caspase-9-dependent intrinsic apoptosis in prefusion OCs (preOCs). Overexpression of Ninj1 enhanced the survival of mouse macrophage/preOC RAW264.7 cells in osteoclastogenic culture, suggesting that Ninj1 is important for the survival of preOCs. Finally, analysis of publicly available microarray data sets revealed a potent correlation between high NINJ1 expression and destructive bone disorders in humans. Our data indicate that Ninj1 plays an important role in bone homeostasis by enhancing the survival of preOCs.
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Affiliation(s)
- Sung-Jin Bae
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Korea.,Korean Medicine Research Center for Healthy Aging, Pusan National University, Yangsan, 50612, Korea
| | - Min Wook Shin
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Korea.,RNA Therapeutics Institute, University of Massachusetts Medical School, Worcester, MA, USA
| | - Taekwon Son
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Korea
| | - Hye Shin Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Korea
| | - Ji Soo Chae
- Department of Life Sciences and Technology, PerkinElmer, Seoul, 06702, Korea
| | - Sejin Jeon
- Department of Life Sciences, Ewha Womans University, Seoul, 03760, Korea
| | - Goo Taeg Oh
- Department of Life Sciences, Ewha Womans University, Seoul, 03760, Korea
| | - Kyu-Won Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Korea. .,Crop Biotechnology Institute, GreenBio Science and Technology, Seoul National University, Pyeongchang, 25354, Korea.
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136
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Abstract
Bone is a crucial element of the skeletal-locomotor system, but also functions as an immunological organ that harbors hematopoietic stem cells (HSCs) and immune progenitor cells. Additionally, the skeletal and immune systems share a number of regulatory molecules, including cytokines and signaling molecules. Osteoimmunology was created as an interdisciplinary field to explore the shared molecules and interactions between the skeletal and immune systems. In particular, the importance of an inseparable link between the two systems has been highlighted by studies on the pathogenesis of rheumatoid arthritis (RA), in which pathogenic helper T cells induce the progressive destruction of multiple joints through aberrant expression of receptor activator of nuclear factor (NF)-κB ligand (RANKL). The conceptual bridge of osteoimmunology provides not only a novel framework for understanding these biological systems but also a molecular basis for the development of therapeutic approaches for diseases of bone and/or the immune system.
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Affiliation(s)
- Kazuo Okamoto
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroshi Takayanagi
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
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137
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Tang X, Gao Y, Chen Y, Li X, Yu P, Ma Z, Liu R. Evaluation of the effect of CaD on the bone structure and bone metabolic changes in senile osteoporosis rats based on MLP–ANN methods. Food Funct 2019; 10:8026-8041. [DOI: 10.1039/c9fo01322a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Senile osteoporosis (SOP) is a related disease of systematic degenerative changes in bones during natural aging.
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Affiliation(s)
- Xiufeng Tang
- School of Traditional Chinese Medicine
- Capital Medical University and Beijing Key Lab of TCM Collateral Disease Theory Research
- Beijing 100069
- China
| | - Yingying Gao
- School of Traditional Chinese Medicine
- Capital Medical University and Beijing Key Lab of TCM Collateral Disease Theory Research
- Beijing 100069
- China
| | - Yuheng Chen
- School of Traditional Chinese Medicine
- Capital Medical University and Beijing Key Lab of TCM Collateral Disease Theory Research
- Beijing 100069
- China
| | - Xiaoxi Li
- School of Traditional Chinese Medicine
- Capital Medical University and Beijing Key Lab of TCM Collateral Disease Theory Research
- Beijing 100069
- China
| | - Ping Yu
- School of Traditional Chinese Medicine
- Capital Medical University and Beijing Key Lab of TCM Collateral Disease Theory Research
- Beijing 100069
- China
| | - Zitong Ma
- School of Traditional Chinese Medicine
- Capital Medical University and Beijing Key Lab of TCM Collateral Disease Theory Research
- Beijing 100069
- China
| | - Renhui Liu
- School of Traditional Chinese Medicine
- Capital Medical University and Beijing Key Lab of TCM Collateral Disease Theory Research
- Beijing 100069
- China
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138
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Kim H, Yoon H, Park J, Che X, Jin X, Choi J. G protein‐coupled receptor 119 is involved in RANKL‐induced osteoclast differentiation and fusion. J Cell Physiol 2018; 234:11490-11499. [DOI: 10.1002/jcp.27805] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 11/01/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Hyun‐Ju Kim
- Department of Biochemistry and Cell Biology Cell and Matrix Research Institute, BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University Daegu Korea
| | - Hye‐Jin Yoon
- Department of Biochemistry and Cell Biology Cell and Matrix Research Institute, BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University Daegu Korea
| | - Ji‐Wan Park
- Department of Biomedical Science School of Medicine, Kyungpook National University Daegu Korea
| | - Xiangguo Che
- Department of Biochemistry and Cell Biology Cell and Matrix Research Institute, BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University Daegu Korea
| | - Xian Jin
- Department of Biochemistry and Cell Biology Cell and Matrix Research Institute, BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University Daegu Korea
| | - Je‐Yong Choi
- Department of Biochemistry and Cell Biology Cell and Matrix Research Institute, BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University Daegu Korea
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139
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Neotuberostemonine inhibits osteoclastogenesis via blockade of NF-κB pathway. Biochimie 2018; 157:81-91. [PMID: 30439408 DOI: 10.1016/j.biochi.2018.11.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 11/08/2018] [Indexed: 01/27/2023]
Abstract
Osteoporosis has been attributed to low bone mass arising from cellular communications between bone formation and bone resorption. Osteoclastogenesis is induced by M-CSF and RANKL in hematopoietic lineage cells. Once RANK/RANKL complex is formed, TRAF6 is recruited and triggers the activation of NF-κB pathway and the expression of osteoclast-related genes including NFATc1. Neotuberostemonine (NTS) is an active compound isolated from Stemona tuberosa Lour. Pharmacologically, NTS has been known to possess antitussive, anti-fibrotic and anti-inflammatory activities through regulation of macrophage. However, the influence of NTS to osteoclastogenesis has not been reported. The purpose of this study is to investigate whether NTS can modulate the osteoclastogenesis induced by RANKL or cancer cells. We found that NTS inhibits RANKL- or cancer cell-mediated osteoclastogenesis via blockade of TRAF6 and NF-κB activation. NTS also impairs the formation of F-actin ring structure, an important feature of osteoclast differentiation and function. These results indicate that NTS can be a preventive and therapeutic candidate for bone-related disease and that NTS provides insights underlying molecular mechanisms that influence osteoclastogenesis.
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140
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Pouresmaeili F, Kamalidehghan B, Kamarehei M, Goh YM. A comprehensive overview on osteoporosis and its risk factors. Ther Clin Risk Manag 2018; 14:2029-2049. [PMID: 30464484 PMCID: PMC6225907 DOI: 10.2147/tcrm.s138000] [Citation(s) in RCA: 215] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Osteoporosis is a bone disorder with remarkable changes in bone biologic material and consequent bone structural distraction, affecting millions of people around the world from different ethnic groups. Bone fragility is the worse outcome of the disease, which needs long term therapy and medical management, especially in the elderly. Many involved genes including environmental factors have been introduced as the disease risk factors so far, of which genes should be considered as effective early diagnosis biomarkers, especially for the individuals from high-risk families. In this review, a number of important criteria involved in osteoporosis are addressed and discussed.
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Affiliation(s)
- Farkhondeh Pouresmaeili
- Infertility and Reproductive Health Research Center (IRHRC), Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Medical Genetics Department, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran,
| | - Behnam Kamalidehghan
- Medical Genetics Department, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran,
- Medical Genetics Center, National Institute of Genetics Engineering and Biotechnology (NIGEB), Tehran, Iran,
| | - Maryam Kamarehei
- Department of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran,
| | - Yong Meng Goh
- Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), Serdang, Malaysia
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141
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Oya A, Katsuyama E, Morita M, Sato Y, Kobayashi T, Miyamoto K, Nishiwaki T, Funayama A, Fujita Y, Kobayashi T, Matsumoto M, Nakamura M, Kanaji A, Miyamoto T. Tumor necrosis factor receptor-associated factor 6 is required to inhibit foreign body giant cell formation and activate osteoclasts under inflammatory and infectious conditions. J Bone Miner Metab 2018; 36:679-690. [PMID: 29273889 DOI: 10.1007/s00774-017-0890-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 11/15/2017] [Indexed: 12/14/2022]
Abstract
Osteoclasts and foreign body giant cells (FBGCs) are derived from common progenitors and share properties such as multi-nucleation capacity induced by cell-cell fusion; however, mechanisms underlying lineage determination between these cells remain unclear. Here we show that, under inflammatory conditions, osteoclasts are stimulated in a manner similar to M1 macrophages, while formation of FBGCs, which exhibit M2-like phenotypes, is inhibited in a manner similar to that seen in M1/M2 macrophage polarization. FBGC/osteoclast polarization was inhibited by conditional knockout of tumor necrosis factor receptor associated factor 6 (Traf6) in adults in vivo and in vitro. Traf6-null mice were previously reported to die soon after birth, but we found that Traf6 deletion in adults did not cause lethality but rather inhibited osteoclast activation and prevented FBGC inhibition under inflammatory conditions. Accordingly, basal osteoclastogenesis was significantly inhibited by Traf6 deletion in vivo and in vitro and accompanied by increased bone mass. Lipopolysaccharide-induced osteoclast formation and osteolysis were significantly inhibited in Traf6 conditional knockout mice. Our results suggest that Traf6 plays a crucial role in regulating M1 osteoclast and M2 FBGC polarization and is a potential therapeutic target in blocking FBGC inhibition, antagonizing osteolysis in inflammatory conditions, and increasing bone mass without adverse effects in adults.
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Affiliation(s)
- Akihito Oya
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Eri Katsuyama
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Mayu Morita
- Division of Oral and Maxillofacial Surgery, Department of Dentistry and Oral Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yuiko Sato
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
- Department of Advanced Therapy for Musculoskeletal Disorders, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tami Kobayashi
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
- Department of Musculoskeletal Reconstruction and Regeneration Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kana Miyamoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Toru Nishiwaki
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Atsushi Funayama
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yoshinari Fujita
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takashi Kobayashi
- Department of Infectious Diseases Control, Faculty of Medicine, Oita University, 1-1 Hasamamachi, Idaigaoka, Yufu, Oita, 879-5593, Japan
| | - Morio Matsumoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masaya Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Arihiko Kanaji
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Takeshi Miyamoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
- Department of Advanced Therapy for Musculoskeletal Disorders, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
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142
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Zhang Y, Chen SE, Shao J, van den Beucken JJJP. Combinatorial Surface Roughness Effects on Osteoclastogenesis and Osteogenesis. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36652-36663. [PMID: 30270615 PMCID: PMC6213029 DOI: 10.1021/acsami.8b10992] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Implant surface properties are a key factor in bone responses to metallic bone implants. In view of the emerging evidence on the important role of osteoclasts in bone regeneration, we here studied how surface roughness affects osteoclastic differentiation and to what extent these osteoclasts have stimulatory effects on osteogenic differentiation of osteoprogenitor cells. For this, we induced osteoclasts derived from RAW264.7 cell line and primary mouse macrophages on titanium surfaces with different roughness ( Ra 0.02-3.63 μm) and analyzed osteoclast behavior in terms of cell number, morphology, differentiation, and further anabolic effect on osteoblastic cells. Surfaces with different roughness induced the formation of osteoclasts with distinct phenotypes, based on total osteoclast numbers, morphology, size, cytoskeletal organization, nuclearity, and osteoclastic features. Furthermore, these different osteoclast phenotypes displayed differential anabolic effects toward the osteogenic differentiation of osteoblastic cells, for which the clastokine CTHRC1 was identified as a causative factor. Morphologically, osteoclast potency to stimulate osteogenic differentiation of osteoblastic cells was found to logarithmically correlate with the nuclei number per osteoclast. Our results demonstrate the existence of a combinatorial effect of surface roughness, osteoclastogenesis, and osteogenic differentiation. These insights open up a new dimension for designing and producing metallic implants by considering the implant roughness to locally regulate osseointegration through coupling osteoclastogenesis with osteogenesis.
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Affiliation(s)
- Yang Zhang
- Department
of Biomaterials, Radboudumc, Nijmegen 6525 GA, The Netherlands
| | - S. Elisa Chen
- Department
of Biomaterials, Radboudumc, Nijmegen 6525 GA, The Netherlands
- Department
of Veterinary Medical Science, University
of Bologna, Bologna 40126, Italy
| | - Jinlong Shao
- Department
of Biomaterials, Radboudumc, Nijmegen 6525 GA, The Netherlands
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143
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Duan X, Yang S, Zhang L, Yang T. V-ATPases and osteoclasts: ambiguous future of V-ATPases inhibitors in osteoporosis. Theranostics 2018; 8:5379-5399. [PMID: 30555553 PMCID: PMC6276090 DOI: 10.7150/thno.28391] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 10/10/2018] [Indexed: 12/11/2022] Open
Abstract
Vacuolar ATPases (V-ATPases) play a critical role in regulating extracellular acidification of osteoclasts and bone resorption. The deficiencies of subunit a3 and d2 of V-ATPases result in increased bone density in humans and mice. One of the traditional drug design strategies in treating osteoporosis is the use of subunit a3 inhibitor. Recent findings connect subunits H and G1 with decreased bone density. Given the controversial effects of ATPase subunits on bone density, there is a critical need to review the subunits of V-ATPase in osteoclasts and their functions in regulating osteoclasts and bone remodeling. In this review, we comprehensively address the following areas: information about all V-ATPase subunits and their isoforms; summary of V-ATPase subunits associated with human genetic diseases; V-ATPase subunits and osteopetrosis/osteoporosis; screening of all V-ATPase subunits variants in GEFOS data and in-house data; spectrum of V-ATPase subunits during osteoclastogenesis; direct and indirect roles of subunits of V-ATPases in osteoclasts; V-ATPase-associated signaling pathways in osteoclasts; interactions among V-ATPase subunits in osteoclasts; osteoclast-specific V-ATPase inhibitors; perspective of future inhibitors or activators targeting V-ATPase subunits in the treatment of osteoporosis.
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Affiliation(s)
- Xiaohong Duan
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral Biology, Clinic of Oral Rare and Genetic Diseases, School of Stomatology, the Fourth Military Medical University, 145 West Changle Road, Xi'an 710032, P. R. China
| | - Shaoqing Yang
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral Biology, Clinic of Oral Rare and Genetic Diseases, School of Stomatology, the Fourth Military Medical University, 145 West Changle Road, Xi'an 710032, P. R. China
| | - Lei Zhang
- Center for Genetic Epidemiology and Genomics, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou, Jiangsu, P. R. China
| | - Tielin Yang
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, 28 West Xianning Road, Xi'an 710049, People's Republic of China
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144
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Canalis E, Yu J, Schilling L, Yee SP, Zanotti S. The lateral meningocele syndrome mutation causes marked osteopenia in mice. J Biol Chem 2018; 293:14165-14177. [PMID: 30042232 DOI: 10.1074/jbc.ra118.004242] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/11/2018] [Indexed: 12/26/2022] Open
Abstract
Lateral meningocele syndrome (LMS) is a rare genetic disorder characterized by neurological complications and osteoporosis. LMS is associated with mutations in exon 33 of NOTCH3 leading to a truncated protein lacking sequences for NOTCH3 degradation and presumably causing NOTCH3 gain of function. To create a mouse model reproducing human LMS-associated mutations, we utilized CRISPR/Cas9 to introduce a tandem termination codon at bases 6691-6696 (ACCAAG→TAATGA) and verified this mutation (Notch3tm1.1Ecan ) by DNA sequencing of F1 mice. One-month-old male and female heterozygous Notch3tm1.1Ecan mice had cancellous and cortical bone osteopenia but exhibited no obvious neurological alterations, and histopathology of multiple organs revealed no abnormalities. Microcomputed tomography of these mutants revealed a 35-60% decrease in cancellous bone volume associated with a reduction in trabecular number and decreased connectivity. During maturation, cancellous and cortical bones were restored in female but not in male mice, which exhibited cancellous bone osteopenia at 4 months. Cancellous bone histomorphometry revealed increased osteoblast and osteocyte numbers and a modest increase in osteoclast surface and bone formation rate. Notch3tm1.1Ecan calvarial osteoblasts had increased proliferation and increased bone γ-carboxyglutamate protein (Bglap) and TNF superfamily member 11 (Tnfsf11) mRNA levels and lower Tnfrsf11b levels. Tnfsf11 mRNA was increased in osteocyte-rich femora from Notch3tm1.1Ecan mice. Cultures of bone marrow-derived macrophages from Notch3tm1.1Ecan mice revealed increased osteoclast formation, particularly in cocultures with osteoblasts from Notch3tm1.1Ecan mice. In conclusion, the Notch3tm1.1Ecan mutation causes osteopenia despite an increase in osteoblast proliferation and function and is associated with enhanced Tnfsf11 expression in osteoblasts and osteocytes.
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Affiliation(s)
- Ernesto Canalis
- From the Departments of Orthopaedic Surgery, .,Medicine, and.,UConn Musculoskeletal Institute, and
| | - Jungeun Yu
- From the Departments of Orthopaedic Surgery.,UConn Musculoskeletal Institute, and
| | - Lauren Schilling
- From the Departments of Orthopaedic Surgery.,UConn Musculoskeletal Institute, and
| | - Siu-Pok Yee
- Cell Biology.,Center for Mouse Genome Modification, UConn Health, Farmington, Connecticut 06030
| | - Stefano Zanotti
- From the Departments of Orthopaedic Surgery.,Medicine, and.,UConn Musculoskeletal Institute, and
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145
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Zhao XL, Chen JJ, Si SY, Chen LF, Wang Z. T63 inhibits osteoclast differentiation through regulating MAPKs and Akt signaling pathways. Eur J Pharmacol 2018; 834:30-35. [PMID: 30012501 DOI: 10.1016/j.ejphar.2018.07.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 06/29/2018] [Accepted: 07/12/2018] [Indexed: 02/06/2023]
Abstract
Inhibition of excessive osteoclast differentiation and activity is a valid approach for the treatment of osteoporosis. T63 is a small-molecule compound identified from a high throughput screening based on RUNX2 transcriptional activity, and has been reported to stimulate osteoblast formation. However, whether the compound has any effect on osteoclast differentiation remains unknown. Here, we examined the in vitro effect of T63 on osteoclastogenesis. T63 was found to inhibit the number of TRAP-positive cells in an osteoblast-osteoclast co-culture system, and inhibited Rankl expression in the preosteoblast MC3T3-E1 cells. The compound also directly suppressed RANKL-induced osteoclast differentiation in both dose- and time-dependent manner, as evidenced by the decrease of TRAP activity, F-actin formation and osteoclastogenesis-related genes expression in RAW264.7 cells. Moreover, pretreatment with T63 markedly decreased the activation of mitogen-activated protein kinases and Akt, both of which are positively involved in the regulation of osteoclastogenesis. Collectively, our findings suggest T63 has a protective effect against bone loss by inhibiting bone resorption. Its regulatory effect on bone metabolism makes the compound a more promising candidate for the potential application in the treatment of osteoporosis.
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Affiliation(s)
- Xiao-Li Zhao
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Jin-Jing Chen
- Department of Biochemistry, College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Shu-Yi Si
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Lin-Feng Chen
- Department of Biochemistry, College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Zhen Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
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146
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Yu J, Zanotti S, Schilling L, Canalis E. Nuclear factor of activated T cells 2 is required for osteoclast differentiation and function in vitro but not in vivo. J Cell Biochem 2018; 119:9334-9345. [PMID: 30010214 DOI: 10.1002/jcb.27212] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 05/30/2018] [Indexed: 01/09/2023]
Abstract
Nuclear factor of activated T cells (NFAT) c2 is important for the immune response and it compensates for NFATc1 for its effects on osteoclastogenesis, but its role in this process is not established. To study the function of NFATc2 in the skeleton, Nfatc2loxP/loxP mice, where the Nfact2 exon 2 is flanked by loxP sequences, were created and mated with mice expressing the Cre recombinase under the control of the Lyz2 promoter. Bone marrow-derived macrophage (BMM) from Lyz2Cre/WT ;Nfatc2Δ/Δ mice cultured in the presence of macrophage-colony stimulating factor and receptor activator of NF-κB ligand exhibited a decrease in the number and size of osteoclasts and a smaller sealing zone when compared to BMMs from Nfatc2loxP/loxP littermate controls. Bone resorption was decreased in osteoclasts from Lyz2Cre/WT ;Nfatc2Δ/Δ mice. This demonstrates that NFATc2 is necessary for optimal osteoclast maturation and function in vitro. Male and female Lyz2Cre/WT ;Nfatc2Δ/Δ mice did not exhibit an obvious skeletal phenotype by microcomputed tomography (μCT) at either 1 or 4 months of age when compared to Nfatc2loxP/loxP sex-matched littermates. Bone histomorphometry confirmed the μCT results, and conditional 4-month-old Lyz2Cre/WT ;Nfatc2Δ/Δ mice did not exhibit changes in parameters of bone histomorphometry. In conclusion, NFATc2 is necessary for optimal osteoclastogenesis in vitro, but its downregulation in the myeloid lineage has no consequences in skeletal remodeling in vivo.
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Affiliation(s)
- Jungeun Yu
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, UConn Health, Farmington, Connecticut
| | - Stefano Zanotti
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, UConn Health, Farmington, Connecticut
- Department of Medicine, UConn Musculoskeletal Institute, UConn Health, Farmington, Connecticut
| | - Lauren Schilling
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, UConn Health, Farmington, Connecticut
| | - Ernesto Canalis
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, UConn Health, Farmington, Connecticut
- Department of Medicine, UConn Musculoskeletal Institute, UConn Health, Farmington, Connecticut
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147
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Fuji H, Ohmae S, Noma N, Takeiri M, Yasutomi H, Izumi K, Ito M, Toyomoto M, Iwaki S, Takemoto K, Seo S, Taura K, Hida S, Aoyama M, Ishihama Y, Hagiwara M, Takeda N, Hatano E, Iwaisako K, Uemoto S, Asagiri M. Necrostatin-7 suppresses RANK-NFATc1 signaling and attenuates macrophage to osteoclast differentiation. Biochem Biophys Res Commun 2018; 503:544-549. [PMID: 29800570 DOI: 10.1016/j.bbrc.2018.05.153] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 05/22/2018] [Indexed: 11/28/2022]
Abstract
Osteoclasts play a crucial role in osteolytic bone diseases, such as osteoporosis, rheumatoid arthritis, periodontitis, Paget's disease of bone and bone metastatic tumors. Therefore, controlling osteoclast differentiation and function has been considered a promising therapeutic strategy. Here, we show that necrostatin (Nec)-7, an inhibitor of programmed necrosis, strongly suppressed receptor activator of nuclear factor (NF)-κB ligand (RANKL)-induced osteoclastogenesis and bone resorption, without compromising macrophage colony-stimulating factor (M-CSF)-supported survival and growth of osteoclast precursor cells. Accordingly, Nec-7 significantly decreased the levels of RANKL-induced osteoclastogenic marker genes, such as cathepsin K. Mechanistically, Nec-7 neither affected MAPK nor NF-κB activation; however, it strongly inhibited the RANKL receptor (RANK) to nuclear factor of activated T cells c1 (NFATc1) signaling. Lentiviral expression of RANK in bone marrow-derived macrophages significantly restored osteoclastogenesis and NFATc1 amplification in Nec-7-treated cells. In this study, we revealed that Nec-7-sensitive pathways are crucially involved in osteoclast formation and function. Investigation of the molecular mechanism(s) through which Nec-7 inhibits RANK-NFATc1 signaling axis may lead to the development of new therapeutic strategies for bone disease.
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Affiliation(s)
- Hiroaki Fuji
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Saori Ohmae
- Department of Bioimaging and Cell Signaling, Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Naruto Noma
- Innovation Center for Immunoregulation and Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masatoshi Takeiri
- Innovation Center for Immunoregulation and Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hideto Yasutomi
- Department of Pathobiology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Kazuya Izumi
- Department of Pathobiology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Moe Ito
- Department of Pathobiology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Masayasu Toyomoto
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Soichiro Iwaki
- Department of Pathobiology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Kenji Takemoto
- Center for Cell Death, Injury and Regeneration, Department of Drug Discovery & Biomedical Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Satoru Seo
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kojiro Taura
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shigeaki Hida
- Department of Molecular and Cellular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Mineyoshi Aoyama
- Department of Pathobiology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Yasushi Ishihama
- Department of Molecular and Cellular BioAnalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - Masatoshi Hagiwara
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Norihiko Takeda
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Etsuro Hatano
- Department of Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - Keiko Iwaisako
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Japan.
| | - Shinji Uemoto
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masataka Asagiri
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Department of Pathobiology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan.
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148
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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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149
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Pereira M, Petretto E, Gordon S, Bassett JHD, Williams GR, Behmoaras J. Common signalling pathways in macrophage and osteoclast multinucleation. J Cell Sci 2018; 131:131/11/jcs216267. [PMID: 29871956 DOI: 10.1242/jcs.216267] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Macrophage cell fusion and multinucleation are fundamental processes in the formation of multinucleated giant cells (MGCs) in chronic inflammatory disease and osteoclasts in the regulation of bone mass. However, this basic cell phenomenon is poorly understood despite its pathophysiological relevance. Granulomas containing multinucleated giant cells are seen in a wide variety of complex inflammatory disorders, as well as in infectious diseases. Dysregulation of osteoclastic bone resorption underlies the pathogenesis of osteoporosis and malignant osteolytic bone disease. Recent reports have shown that the formation of multinucleated giant cells and osteoclast fusion display a common molecular signature, suggesting shared genetic determinants. In this Review, we describe the background of cell-cell fusion and the similar origin of macrophages and osteoclasts. We specifically focus on the common pathways involved in osteoclast and MGC fusion. We also highlight potential approaches that could help to unravel the core mechanisms underlying bone and granulomatous disorders in humans.
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Affiliation(s)
- Marie Pereira
- Centre for Inflammatory Disease, Imperial College London, London W12 0NN, UK
| | - Enrico Petretto
- Duke-NUS Medical School, Singapore 169857, Republic of Singapore
| | - Siamon Gordon
- Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan City 33302, Taiwan.,Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK
| | - J H Duncan Bassett
- Molecular Endocrinology Laboratory, Department of Medicine, Imperial College London, London W12 0NN, UK
| | - Graham R Williams
- Molecular Endocrinology Laboratory, Department of Medicine, Imperial College London, London W12 0NN, UK
| | - Jacques Behmoaras
- Centre for Inflammatory Disease, Imperial College London, London W12 0NN, UK
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150
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Pata M, Vacher J. Ostm1 Bifunctional Roles in Osteoclast Maturation: Insights From a Mouse Model Mimicking a Human OSTM1 Mutation. J Bone Miner Res 2018; 33:888-898. [PMID: 29297601 DOI: 10.1002/jbmr.3378] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/21/2017] [Accepted: 12/27/2017] [Indexed: 11/12/2022]
Abstract
Ostm1 mutations are responsible for the most severe form of osteopetrosis in human and mice. To gain insight into Ostm1 cellular functions, we engineered a conditional in-frame deletion of the Ostm1 transmembrane domain and generated the first Ostm1 mouse model with a human mutation. Systemic targeting of Ostm1 loss of transmembrane domain produced osteopetrosis, as in the null Ostm1 gl/gl mouse. Significantly, conditional osteoclast targeting of Ostm1 resulted in similar osteopetrosis, thereby demonstrating that the intrinsic Ostm1 osteoclast deficiency is solely responsible for the mouse phenotype. Our analysis showed oversized osteoclasts with enhanced multinucleation associated with stimulation of intracellular calcium levels, of Nfatc1 nuclear re-localization, and of specific downstream Nfatc1 target genes, providing compelling evidence that Ostm1 is a negative regulator of preosteoclast fusion. Moreover, mature OCs with Ostm1 loss of transmembrane domain show appropriate levels of intracellular acidification but an altered distribution pattern, highlighting misregulation of endolysosome localization and dispersion. Consistently, the hydrolases tartrate-resistant acid phosphatase (TRAP) and cathepsin K (Ctsk) normally produced are sequestered within the osteoclasts and are not extracellularly secreted. These studies defined bifunctional roles for Ostm1 as a major regulator of preosteoclast cytoskeletal rearrangements toward cell multinucleation and of mature osteoclast intracellular lysosomal trafficking and exocytosis mechanism, both of which are essential for bone resorption. Importantly, these Ostm1 molecular and regulatory functions could serve as preclinical targets in this mouse model toward osteoclastogenic pathologies as osteoporosis and inflammation-induced bone loss. © 2018 American Society for Bone and Mineral Research.
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Affiliation(s)
- Monica Pata
- Institut de Recherches Cliniques de Montréal (IRCM), Montréal, Québec, Canada
| | - Jean Vacher
- Institut de Recherches Cliniques de Montréal (IRCM), Montréal, Québec, Canada.,Département de Médecine, Université de Montréal, Montréal, Québec, Canada.,Department of Medicine, Division of Experimental Medicine, McGill University, Montréal, Québec, Canada
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