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Zhu S, Sun P, Bennett S, Charlesworth O, Tan R, Peng X, Gu Q, Kujan O, Xu J. The therapeutic effect and mechanism of parthenolide in skeletal disease, cancers, and cytokine storm. Front Pharmacol 2023; 14:1111218. [PMID: 37033622 PMCID: PMC10080395 DOI: 10.3389/fphar.2023.1111218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 02/17/2023] [Indexed: 03/12/2023] Open
Abstract
Parthenolide (PTL or PAR) was first isolated from Magnolia grandiflora and identified as a small molecule cancer inhibitor. PTL has the chemical structure of C15H20O3 with characteristics of sesquiterpene lactones and exhibits the biological property of inhibiting DNA biosynthesis of cancer cells. In this review, we summarise the recent research progress of medicinal PTL, including the therapeutic effects on skeletal diseases, cancers, and inflammation-induced cytokine storm. Mechanistic investigations reveal that PTL predominantly inhibits NF-κB activation and other signalling pathways, such as reactive oxygen species. As an inhibitor of NF-κB, PTL appears to inhibit several cytokines, including RANKL, TNF-α, IL-1β, together with LPS induced activation of NF-κB and NF-κB -mediated specific gene expression such as IL-1β, TNF-α, COX-2, iNOS, IL-8, MCP-1, RANTES, ICAM-1, VCAM-1. It is also proposed that PTL could inhibit cytokine storms or hypercytokinemia triggered by COVID-19 via blocking the activation of NF-κB signalling. Understanding the pharmacologic properties of PTL will assist us in developing its therapeutic application for medical conditions, including arthritis, osteolysis, periodontal disease, cancers, and COVID-19-related disease.
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Affiliation(s)
- Sipin Zhu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia
- *Correspondence: Sipin Zhu, ; Jiake Xu,
| | - Ping Sun
- School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia
- Department of Endocrinology, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Samuel Bennett
- School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia
| | - Oscar Charlesworth
- School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia
| | - Renxiang Tan
- The State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, Nanjing University, Nanjing, China
| | - Xing Peng
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Qiang Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Omar Kujan
- UWA Dental School, The University of Western Australia, Perth, WA, Australia
| | - Jiake Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia
- *Correspondence: Sipin Zhu, ; Jiake Xu,
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Yin Z, Gong G, Wang X, Liu W, Wang B, Yin J. The dual role of autophagy in periprosthetic osteolysis. Front Cell Dev Biol 2023; 11:1123753. [PMID: 37035243 PMCID: PMC10080036 DOI: 10.3389/fcell.2023.1123753] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 03/16/2023] [Indexed: 04/11/2023] Open
Abstract
Periprosthetic osteolysis (PPO) induced by wear particles is an important cause of aseptic loosening after artificial joint replacement, among which the imbalance of osteogenesis and osteoclastic processes occupies a central position. The cells involved in PPO mainly include osteoclasts (macrophages), osteoblasts, osteocytes, and fibroblasts. RANKL/RANK/OGP axis is a typical way for osteolysis. Autophagy, a mode of regulatory cell death and maintenance of cellular homeostasis, has a dual role in PPO. Although autophagy is activated in various periprosthetic cells and regulates the release of inflammatory cytokines, osteoclast activation, and osteoblast differentiation, its beneficial or detrimental role remains controversy. In particular, differences in the temporal control and intensity of autophagy may have different effects. This article focuses on the role of autophagy in PPO, and expects the regulation of autophagy to become a powerful target for clinical treatment of PPO.
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Affiliation(s)
- Zhaoyang Yin
- Department of Orthopedics, The First People’s Hospital of Lianyungang, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, China
| | - Ge Gong
- Department of Geriatrics, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xiang Wang
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
| | - Wei Liu
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
| | - Bin Wang
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
- *Correspondence: Jian Yin, ; Bin Wang,
| | - Jian Yin
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
- *Correspondence: Jian Yin, ; Bin Wang,
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3
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Zhao Y, Pu G, Li Y, Jiang H, Zhang Q, Chen P, Lu Q, Wang M, Yang R. Serum Levels of CXCR4, SDF-1, MCP-1, NF-κB and ERK1/2 in Patients with Skeletal Fluorosis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:16555. [PMID: 36554439 PMCID: PMC9778822 DOI: 10.3390/ijerph192416555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/12/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
C-X-C motif chemokine receptor 4 (CXCR4), stromal cell-derived factor-1 (SDF-1), monocyte chemoattractant protein-1 (MCP-1), extracellular signal-regulated kinase 1/2 (ERK1/2) and nuclear factor-κB (NF-κB) affect bone cells and play an important role in bone and joint diseases, but the data on CXCR4, SDF-1, MCP-1, ERK1/2 and NF-κB in the serum of skeletal fluorosis (SF) patients are inconclusive. Thus, according to the "Diagnostic Criteria for Endemic Skeletal Fluorosis" (WS 192-2008), we enrolled patients with SF (n = 60) as the SF group and those without SF as the controls (n = 60). Serum levels of CXCR4, SDF-1, MCP-1, ERK1/2 and NF-κB were detected by enzyme-linked immunosorbent assays (ELISAs). Serum SDF-1, CXCR4, MCP-1 and NF-κB levels were significantly higher in the SF group than in the control group. Within the serum of SF patients, CXCR4 and SDF-1 levels were positively correlated with NF-κB levels. There was no correlation between MCP-1 levels and those of ERK1/2 or NF-κB. SDF-1 and CXCR4 may activate the NF-κB pathway, and MCP-1 affects the occurrence and development of SF by regulating osteocytes through other pathways. The SDF-1/CXCR4 axis and MCP-1 signalling pathway provide a new theoretical basis for the occurrence and development of SF.
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Affiliation(s)
- Yaqian Zhao
- Department of Public Health, Medical College, Qinghai University, Xi’ning 810016, China
- Department of Endemic Disease Prevention and Control, Qinghai Institute for Endemic Disease Prevention and Control, Xi’ning 811602, China
| | - Guanglan Pu
- Department of Endemic Disease Prevention and Control, Qinghai Institute for Endemic Disease Prevention and Control, Xi’ning 811602, China
| | - Yanan Li
- Department of Endemic Disease Prevention and Control, Qinghai Institute for Endemic Disease Prevention and Control, Xi’ning 811602, China
| | - Hong Jiang
- Department of Endemic Disease Prevention and Control, Qinghai Institute for Endemic Disease Prevention and Control, Xi’ning 811602, China
| | - Qiang Zhang
- Department of Public Health, Medical College, Qinghai University, Xi’ning 810016, China
- Department of Endemic Disease Prevention and Control, Qinghai Institute for Endemic Disease Prevention and Control, Xi’ning 811602, China
| | - Ping Chen
- Department of Endemic Disease Prevention and Control, Qinghai Institute for Endemic Disease Prevention and Control, Xi’ning 811602, China
| | - Qing Lu
- Department of Endemic Disease Prevention and Control, Qinghai Institute for Endemic Disease Prevention and Control, Xi’ning 811602, China
| | - Mingjun Wang
- Department of Endemic Disease Prevention and Control, Qinghai Institute for Endemic Disease Prevention and Control, Xi’ning 811602, China
| | - Rui Yang
- Department of Public Health, Medical College, Qinghai University, Xi’ning 810016, China
- Department of Endemic Disease Prevention and Control, Qinghai Institute for Endemic Disease Prevention and Control, Xi’ning 811602, China
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4
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Wang M, An M, Fan MS, Zhang SS, Sun Z, Zhao Y, Xiang ZM, Sheng J. FAEE exerts a protective effect against osteoporosis by regulating the MAPK signalling pathway. PHARMACEUTICAL BIOLOGY 2022; 60:467-478. [PMID: 35180021 PMCID: PMC8865110 DOI: 10.1080/13880209.2022.2039216] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
CONTEXT Ferulic acid ethyl ester (FAEE) is abundant in Ligusticum chuanxiong Hort. (Apiaceae) and grains, and possesses diverse biological activities; but the effects of FAEE on osteoporosis has not been reported. OBJECTIVE This study investigated whether FAEE can attenuate osteoclastogenesis and relieve ovariectomy-induced osteoporosis via attenuating mitogen-activated protein kinase (MAPK). MATERIALS AND METHODS We stimulated RAW 264.7 cells with receptor activator of NF-κB ligand (RANKL) followed by FAEE. The roles of FAEE in osteoclast production and osteogenic resorption of mature osteoclasts were evaluated by tartrate resistant acid phosphatase (TRAP) staining, expression of osteoclast-specific genes, proteins and MAPK. Ovariectomized (OVX) female Sprague-Dawley rats were administered FAEE (20 mg/kg/day) for 12 weeks to explore its potential in vivo, and then histology was undertaken in combination with cytokines analyses. RESULTS FAEE suppressed RANKL-induced osteoclast formation (96 ± 0.88 vs. 15 ± 1.68) by suppressing the expression of osteoclast-specific genes, proteins and MAPK signalling pathway related proteins (p-ERK/ERK, p-JNK/JNK and p-P38/P38) in vitro. In addition, OVX rats exposed to FAEE maintained their normal calcium (Ca) (2.72 ± 0.02 vs. 2.63 ± 0.03, p < 0.05) balance, increased oestradiol levels (498.3 ± 9.43 vs. 398.7 ± 22.06, p < 0.05), simultaneously reduced levels of bone mineral density (BMD) (0.159 ± 0.0016 vs. 0.153 ± 0.0025, p < 0.05) and bone mineral content (BMC) (0.8 ± 0.0158 vs. 0.68 ± 0.0291, p < 0.01). DISCUSSION AND CONCLUSIONS These findings suggested that FAEE could be used to ameliorate osteoporosis by the MAPK signalling pathway, suggesting that FAEE could be a potential therapeutic candidate for osteoporosis.
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Affiliation(s)
- Ming‑Yue Wang
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P. R. China
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, P. R. China
| | - Meng‑Fei An
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P. R. China
- College of Science, Yunnan Agricultural University, Kunming, P. R. China
| | - Mao-Si Fan
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P. R. China
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, P. R. China
| | - Shao-Shi Zhang
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P. R. China
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, P. R. China
| | - Ze‑Rui Sun
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P. R. China
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, P. R. China
| | - Yun‑Li Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming, P. R. China
- Yun‑Li Zhao
| | - Ze-Min Xiang
- College of Science, Yunnan Agricultural University, Kunming, P. R. China
- Ze-Min Xiang
| | - Jun Sheng
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P. R. China
- College of Science, Yunnan Agricultural University, Kunming, P. R. China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Kunming, P. R. China
- CONTACT Jun Sheng
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Ye X, Jiang J, Yang J, Yan W, Jiang L, Chen Y. Specnuezhenide suppresses diabetes-induced bone loss by inhibiting RANKL-induced osteoclastogenesis. Acta Biochim Biophys Sin (Shanghai) 2022; 54:1080-1089. [PMID: 35929595 PMCID: PMC9827798 DOI: 10.3724/abbs.2022094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 11/29/2021] [Indexed: 11/25/2022] Open
Abstract
Diabetes osteoporosis is a chronic complication of diabetes mellitus (DM) and is associated with osteoclast formation and enhanced bone resorption. Specnuezhenide (SPN) is an active compound with anti-inflammatory and immunomodulatory properties. However, the roles of SPN in diabetic osteoporosis remain unknown. In this study, primary bone marrow macrophages (BMMs) were pretreated with SPN and were stimulated with receptor activator of nuclear factor kappa B ligand (RANKL; 50 ng/mL) to induce osteoclastogenesis. The number of osteoclasts was detected by tartrate-resistant acid phosphatase (TRAP) staining. The protein levels of cellular oncogene fos/nuclear factor of activated T cells c1 (c-Fos/NFATc1), nuclear factor kappa-B (NF-κB), and mitogen-activated protein kinases (MAPKs) were evaluated by western blot analysis. NF-κB luciferase assays were used to examine the role of SPN in NF-κB activation. The DM model group received a high-glucose, high-fat diet and was then intraperitoneally injected with streptozotocin (STZ). Micro-CT scanning, serum biochemical analysis, histological analysis were used to assess bone loss. We found that SPN suppressed RANKL-induced osteoclast formation and that SPN inhibited the expression of osteoclast-related genes and c-Fos/ NFATc1. SPN inhibited RANKL-induced activation of NF-κB and MAPKs. In vivo experiments revealed that SPN suppressed diabetes-induced bone loss and the number of osteoclasts. Furthermore, SPN decreased the levels of bone turnover markers and increased the levels of runt-related transcription factor 2 (RUNX2), osteoprotegerin (OPG), calcium (Ca) and phosphorus (P). SPN also regulated diabetes-related markers. This study suggests that SPN suppresses diabetes-induced bone loss by inhibiting RANKL-induced osteoclastogenesis, and provides an experimental basis for the treatment of diabetic osteoporosis.
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Affiliation(s)
| | | | - Juan Yang
- />Department of Nephrologythe Affiliated Geriatric Hospital of Nanjing Medical UniversityNanjing210024China
| | - Wenyan Yan
- />Department of Nephrologythe Affiliated Geriatric Hospital of Nanjing Medical UniversityNanjing210024China
| | - Luyue Jiang
- />Department of Nephrologythe Affiliated Geriatric Hospital of Nanjing Medical UniversityNanjing210024China
| | - Yan Chen
- />Department of Nephrologythe Affiliated Geriatric Hospital of Nanjing Medical UniversityNanjing210024China
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6
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Yu B, Wang F, Wang Y. Advances in the Structural and Physiological Functions of SHARPIN. Front Immunol 2022; 13:858505. [PMID: 35547743 PMCID: PMC9084887 DOI: 10.3389/fimmu.2022.858505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/28/2022] [Indexed: 11/29/2022] Open
Abstract
SHARPIN was initially found as a SHANK-associated protein. SHARPIN can be used as an important component to form the linear ubiquitin chain assembly complex (LUBAC) with HOIL-1L, HOIP to produce a linear ubiquitin chain connected N-terminal Met1, playing a critical role in various cellular processes including NF-κB signaling, inflammation, embryogenesis and apoptosis. SHARPIN alone can also participate in many critical physiological activities and cause various disorders such as chronic dermatitis, tumor, and Alzheimer’s disease. Mice with spontaneous autosomal recessive mutations in the SHARPIN protein mainly exhibit chronic dermatitis and immunodeficiency with elevated IgM. Additionally, SHARPIN alone also plays a key role in various cellular events, such as B cells activation and platelet aggregation. Structural studies of the SHARPIN or LUBAC have been reported continuously, advancing our understanding of it at the molecular level. However, the full-length structure of the SHARPIN or LUBAC was lagging, and the molecular mechanism underlying these physiological processes is also unclear. Herein, we summarized the currently resolved structure of SHARPIN as well as the emerging physiological role of SHARPIN alone or in LUBAC. Further structural and functional study of SHARPIN will provide insight into the role and underlying mechanism of SHARPIN in disease, as well as its potential application in therapeutic.
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Affiliation(s)
- Beiming Yu
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Feng Wang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Yanfeng Wang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, China
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7
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Wu J, Li XY, Fang X, Teng FY, Xu Y. Decreased Serum Maresin 1 Concentration Is Associated With Postmenopausal Osteoporosis: A Cross-Sectional Study. Front Med (Lausanne) 2022; 8:759825. [PMID: 35083231 PMCID: PMC8784751 DOI: 10.3389/fmed.2021.759825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 11/25/2021] [Indexed: 11/23/2022] Open
Abstract
Background: Maresin 1 plays a role in the regulation of inflammation and metabolic diseases in vivo. An increasing number of studies have reported that postmenopausal osteoporosis (PMOP) is associated with inflammation. However, the potential relationship between the serum Maresin 1 content and PMOP is unclear. Aims: 1) To evaluate the Maresin 1 content in postmenopausal women with osteopenia, osteoporosis, or without these conditions (normal group) and 2) to analyze the correlations between Maresin 1 concentrations and bone mineral density (BMD) and bone turnover markers. Methods: In this cross-sectional study, we measured serum Maresin 1 concentrations, serum biochemical parameters, markers of bone metabolism, and BMD of the femoral neck, lumbar spine, and hip in 141 postmenopausal women. Results: We found that serum Maresin 1 in the osteopenia (140.09 ± 30.54 pg/ml) and PMOP (124.68 ± 31.35 pg/ml) groups were significantly lower than those in the normal group (167.38 ± 24.85 pg/ml) (P < 0.05 and P < 0.001). Serum Maresin 1 levels were positively correlated with femoral neck, lumbar spine, and hip BMD (P < 0.001). Meanwhile, Maresin 1 concentrations were positively associated with 25-hydroxyvitamin D [25(OH)D] levels (P < 0.001), but negatively correlated with β-CrossLaps of type 1 collagen containing cross-linked C-telopeptide (β-CTX) (P = 0.002), procollagen type I amino-terminal propeptide (PINP) (P = 0.004), tartrate-resistant acid phosphatase 5b (TRAP-5b) (P = 0.005), and osteocalcin (OC) levels (P = 0.001). Multivariate logistic regression analysis showed that a decrease in Maresin 1 concentration was still associated with osteopenia (P = 0.035) or PMOP (P = 0.016). Maresin 1 levels had a maximum area under curve of 0.820 for osteopenia and 0.746 for PMOP (P < 0.001). Our results showed that the serum Maresin 1 levels were reduced in osteopenia and PMOP patients compared with that in normal subjects, and were the lowest in the PMOP subjects. The results suggest that Maresin 1 may serve as a new non-invasive diagnostic biomarker for PMOP.
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Affiliation(s)
- Jing Wu
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Kidney Disease Clinical Medicine Research Center, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Xin-Yue Li
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Kidney Disease Clinical Medicine Research Center, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Xia Fang
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Kidney Disease Clinical Medicine Research Center, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Experimental Medicine Center, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Fang-Yuan Teng
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Kidney Disease Clinical Medicine Research Center, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Experimental Medicine Center, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yong Xu
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Kidney Disease Clinical Medicine Research Center, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China
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8
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Soma T, Iwasaki R, Sato Y, Kobayashi T, Ito E, Matsumoto T, Kimura A, Miyamoto K, Matsumoto M, Nakamura M, Morita M, Asoda S, Kawana H, Nakagawa T, Miyamoto T. Osteonecrosis development by tooth extraction in zoledronate treated mice is inhibited by active vitamin D analogues, anti-inflammatory agents or antibiotics. Sci Rep 2022; 12:19. [PMID: 34997043 PMCID: PMC8742126 DOI: 10.1038/s41598-021-03966-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 12/14/2021] [Indexed: 11/08/2022] Open
Abstract
Invasive dental treatment such as tooth extraction following treatment with strong anti-bone resorptive agents, including bisphosphonates and denosumab, reportedly promotes osteonecrosis of the jaw (ONJ) at the extraction site, but strategies to prevent ONJ remain unclear. Here we show that in mice, administration of either active vitamin D analogues, antibiotics or anti-inflammatory agents can prevent ONJ development induced by tooth extraction during treatment with the bisphosphonate zoledronate. Specifically, tooth extraction during treatment with zoledronate induced osteonecrosis in mice, but administration of either 1,25(OH)2D3 or ED71, both active vitamin D analogues, significantly antagonized osteonecrosis development, even under continuous zoledronate treatment. 1,25(OH)2D3 or ED71 administration also significantly inhibited osteocyte apoptosis induced by tooth extraction and bisphosphonate treatment. Administration of either active vitamin D analogue significantly inhibited elevation of serum inflammatory cytokine levels in mice in response to injection of lipopolysaccharide, an infection mimetic. Furthermore, administration of either anti-inflammatory or antibiotic reagents significantly blocked ONJ development following tooth extraction and zoledronate treatment. These findings suggest that administration of active vitamin D, anti-inflammatory agents or antibiotics could prevent ONJ development induced by tooth extraction in patients treated with zoledronate.
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Affiliation(s)
- Tomoya Soma
- 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
| | - Ryotaro Iwasaki
- 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 II, 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
| | - Eri Ito
- Institute for Integrated Sports Medicine, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tatsuaki Matsumoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Atsushi Kimura
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kana Miyamoto
- Department of Orthopedic Surgery, Kumamoto University, 1-1-Honjo, Chuo-ku, Kumamoto, 860-8556, 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
| | - 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
| | - Seiji Asoda
- 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
| | - Hiromasa Kawana
- 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
- Department of Oral and Maxillofacial Implantology, School of Dentistry, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka, Kanagawa, 238-8580, Japan
| | - Taneaki Nakagawa
- 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
| | - 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 II, 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.
- Department of Orthopedic Surgery, Kumamoto University, 1-1-Honjo, Chuo-ku, Kumamoto, 860-8556, Japan.
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Jung HJ, Lee W, Shin JS, Lee SK, Lee JH. The Effects of NF-kB Inhibition with p65-TMD-Linked PTD on Inflammatory Responses at Peri-implantitis Sites. Inflammation 2021; 44:2291-2301. [PMID: 34169410 PMCID: PMC8616882 DOI: 10.1007/s10753-021-01500-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 05/20/2021] [Accepted: 06/06/2021] [Indexed: 11/14/2022]
Abstract
The objective of this study was to find out if suppression of NF-kB complex function by p65-TMD-linked PTD could reduce host inflammation and bone resorption at peri-implantitis sites in rats. Twenty-one male 5-week-old SD rats were divided into three groups: untreated control group (A), silk-induced peri-implantitis group (B), and nt (nucleus transducible)-p65-TMD-treated, silk-induced peri-implantitis group (C). Implant sulcus of a rat in group C were divided into two groups, namely group Cp and Cb. Palatal implant sulcus where nt-p65-TMD solution was applied with an insulin syringe were assigned to group Cp. Buccal implant sulcus without topical nt-p65-TMD application were assigned to group Cb. H&E staining, TRAP staining, and immunohistological staining were done. The crestal bone levels of group A were significantly higher than those of group B at p<0.01. The crestal bone levels of group Cp were significantly higher than those of group Cb at p<0.05. H-E staining showed increased apical migration of junctional epithelium and inflammatory cells in group Cb. TRAP staining revealed more multinucleated osteoclasts in group Cb. As for immunohistological staining, group Cb showed many IL-6-positive cells while group Cp had none. In this study, p65-TMD-linked PTD inhibited NF-kB functions and reduced inflammation and bone resorption at peri-implantitis sites in rats.
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Affiliation(s)
- Hyun Jung Jung
- Department of Prosthodontics, College of Dentistry, Yonsei University, 50-1 Yonsei-ro, Seodaemoon-gu, Seoul, 120-752, South Korea
- The Catholic University of Korea, Uijeongbu St. Mary's Hospital, Uijeongbu, South Korea
| | - Won Lee
- The Catholic University of Korea, Uijeongbu St. Mary's Hospital, Uijeongbu, South Korea
| | - Jin-Su Shin
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Sang-Kyou Lee
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Jae Hoon Lee
- Department of Prosthodontics, College of Dentistry, Yonsei University, 50-1 Yonsei-ro, Seodaemoon-gu, Seoul, 120-752, South Korea.
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10
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Osteoprotective Effect of Enamel Matrix Derivatives on the Regeneration of Mandibular Defects in Experimentally Glucocorticoid-Induced Osteoporosis. Int J Dent 2021; 2021:8659010. [PMID: 34804167 PMCID: PMC8598373 DOI: 10.1155/2021/8659010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/12/2021] [Accepted: 09/29/2021] [Indexed: 11/17/2022] Open
Abstract
Purpose Osteoporosis is a progressive systematic skeletal illness characterized by low bone mineral density and susceptibility to fracture caused by bone resorption. Aim of the Study. This study intended to evaluate the possible role of emdogain in combination with calcitonin on the healing of surgically induced mandibular defects performed on osteoporotic rats. Materials and Methods Forty healthy female white albino rats were included in this study and divided into four groups. In group I (negative control), 10 rats received a vehicle injection after which a unilateral mandibular defect was created in each rat of all groups. Three groups were subjected to induction of osteoporosis by subcutaneous injection of 0.1 mg/kg/day dexamethasone for 60 days. In group II, rats were kept without treatment. In group III, rats were treated with daily intramuscular injection of 2.5 IU/kg of synthetic salmon calcitonin. In group IV, rats were handled as group III, and the created cavity was filled with emdogain. Rats were euthanized at 2nd and 4th week postsurgically. Hematoxylin and eosin, Masson's trichrome, NF-κB (nuclear factor of activated B cells), and immunohistochemical stains were used, followed by statistical analysis. Results Group I showed normal stages of bone defects healing. Group II revealed the formation of granulation tissue with dilated blood vessels, while groups III and IV showed enhanced bone healing and proper collagen fibers. The percentage area of newly formed collagen fibers was significantly higher in group IV at 2nd week (13.96 ± 0.020%) and 4th week (16.95 ± 0.024%) than in group II (8.75 ± 0.015% and 10.29 ± 0.015%, respectively) and group III (12.93 ± 0.015% and 14.61 ± 0.021%, respectively), but was lower than that in group I (15.75 ± 0.015% and 17.49 ± 0.015%, respectively). Conclusion The local application of emdogain combined with systemically injected calcitonin improves bone healing in surgically induced bone defects in osteoporotic rats.
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11
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El Sabeh R, Bonnet M, Le Corf K, Lang K, Kfoury A, Badran B, Hussein N, Virard F, Treilleux I, Le Romancer M, Lebecque S, Manie S, Coste I, Renno T. A Gender-Dependent Molecular Switch of Inflammation via MyD88/Estrogen Receptor-Alpha Interaction. J Inflamm Res 2021; 14:2149-2156. [PMID: 34045885 PMCID: PMC8149287 DOI: 10.2147/jir.s306805] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 04/29/2021] [Indexed: 01/30/2023] Open
Abstract
Introduction Most Toll-like receptors and IL-1/IL-18 receptors activate a signaling cascade via the adaptor molecule MyD88, resulting in NF-κB activation and inflammatory cytokine and chemokine production. Females are less susceptible than males to inflammatory conditions, presumably due to protection by estrogen. The exact mechanism underlying this protection is unknown. Methods MCF7 cells expressing wild-type or mutated LXXLL motif were used to determine MyD88/estrogen receptor (ER)-a interaction by immunoprecipitation and cell activation by ELISA and luciferase reporter assay. IL-1b and/or E2 were used to activate MCF7 cells expressing normal or knocked down levels of PRMT1. Finally, in situ proximity ligation assay with anti-MyD88 and anti-methylated ER-a (methER-a) antibodies was used to evaluate MyD88/methylated ER-a interaction in THP1 cells and histological sections. Results We show that MyD88 interacts with a methylated, cytoplasmic form of estrogen receptor-alpha (methER-α). This interaction is required for NF-κB transcriptional activity and pro-inflammatory cytokine production, and is dissociated by estrogen. Importantly, we show a strong gender segregation in gametogenic reproductive organs, with MyD88/methER-α interactions found in testicular tissues and in ovarian tissues from menopausal women, but not in ovaries from women age 49 and less - suggesting a role for estrogen in disrupting this complex in situ. Discussion Collectively, our results indicate that the formation of MyD88/methER-α complexes during inflammatory signaling and their disruption by estrogen may represent a mechanism that contributes to gender bias in inflammatory responses.
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Affiliation(s)
- Rana El Sabeh
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, France.,Université Libanaise, PRASE, Hadath, Lebanon
| | - Mélanie Bonnet
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Katy Le Corf
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Kevin Lang
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Alain Kfoury
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | | | | | - Francois Virard
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | | | - Muriel Le Romancer
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Serge Lebecque
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Serge Manie
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Isabelle Coste
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Toufic Renno
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, France
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12
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Tan Y, Deng W, Zhang Y, Ke M, Zou B, Luo X, Su J, Wang Y, Xu J, Nandakumar KS, Liu Y, Zhou X, Li X. A marine fungus-derived nitrobenzoyl sesquiterpenoid suppresses receptor activator of NF-κB ligand-induced osteoclastogenesis and inflammatory bone destruction. Br J Pharmacol 2020; 177:4242-4260. [PMID: 32608081 DOI: 10.1111/bph.15179] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 05/15/2020] [Accepted: 06/10/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND AND PURPOSE Osteoclasts are unique cells to absorb bone. Targeting osteoclast differentiation is a therapeutic strategy for osteolytic diseases. Natural marine products have already become important sources of new drugs. The naturally occurring nitrobenzoyl sesquiterpenoids first identified from marine fungi in 1998 are bioactive compounds with a special structure, but their pharmacological functions are largely unknown. Here, we investigated six marine fungus-derived nitrobenzoyl sesquiterpenoids on osteoclastogenesis and elucidated the mechanisms. EXPERIMENTAL APPROACH Compounds were first tested by RANKL-induced NF-κB luciferase activity and osteoclastic TRAP assay, followed by molecular docking to characterize the structure-activity relationship. The effects and mechanisms of the most potent nitrobenzoyl sesquiterpenoid on RANKL-induced osteoclastogenesis and bone resorption were further evaluated in vitro. Micro-CT and histology analysis were used to assess the prevention of bone destruction by nitrobenzoyl sesquiterpenoids in vivo. KEY RESULTS Nitrobenzoyl sesquiterpenoid 4, with a nitrobenzoyl moiety at C-14 and a hydroxyl group at C-9, was the most active compound on NF-κB activity and osteoclastogenesis. Consequently, nitrobenzoyl sesquiterpenoid 4 exhibited suppression of RANKL-induced osteoclastogenesis and bone resorption from 0.5 μM. It blocked RANKL-induced IκBa phosphorylation, NF-κB p65 and RelB nuclear translocation, NFATc1 activation, reduced DC-STAMP but not c-Fos expression during osteoclastogenesis in vitro. Nitrobenzoyl sesquiterpenoid 4 also ameliorated LPS-induced osteolysis in vivo. CONCLUSION AND IMPLICATIONS These results highlighted nitrobenzoyl sesquiterpenoid 4 as a novel inhibitor of osteoclast differentiation. This marine-derived sesquiterpenoid is a promising lead compound for the treatment of osteolytic diseases.
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Affiliation(s)
- Yanhui Tan
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Wende Deng
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Yueyang Zhang
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Minhong Ke
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Binhua Zou
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Xiaowei Luo
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Jianbin Su
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Yiyuan Wang
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Jialan Xu
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Kutty Selva Nandakumar
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Yonghong Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Xuefeng Zhou
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Xiaojuan Li
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
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13
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Jiao Y, Chen C, Hu X, Feng X, Shi Z, Cao J, Li Q, Zhu Y. Niclosamide and its derivative DK-520 inhibit RANKL-induced osteoclastogenesis. FEBS Open Bio 2020; 10:1685-1697. [PMID: 32602250 PMCID: PMC7396435 DOI: 10.1002/2211-5463.12921] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 06/05/2020] [Accepted: 06/09/2020] [Indexed: 01/13/2023] Open
Abstract
Niclosamide is a potent inhibitor of osteoclastogenesis and bone remodeling. DK‐520 is an acyl derivative of Niclosamide and significantly increased both the plasma concentration and the duration of exposure of Niclosamide when dosed orally. However, at present the effect of DK‐520 on osteoclastogenesis has not been reported. Here, we investigated whether DK‐520 can regulate receptor activator of nuclear factor‐κB ligand (RANKL)‐induced osteoclastogenesis of bone marrow macrophages (BMMs) in vitro. Following induction of BMMs with RANKL for three days, we detected differentiated osteoclasts with typical morphology and high levels of tartrate‐resistant acid phosphatase (TRAP), RANKL, and cathepsin K (CTSK) expression. Treatment with either Niclosamide or DK‐520 did not affect the viability of osteoclast precursors (OCPs), but significantly inhibited RANKL‐induced transdifferentiation of macrophages into OCPs, particularly in the early stage of osteoclastogenesis. Both Niclosamide and DK‐520 significantly decreased the relative levels of transcription factor PU.1 mRNA transcripts and dendritic cell‐specific transmembrane protein (DC‐STAMP), but not v‐ATPasev0d2 protein expression in OCPs. In addition, the inhibitory effect of DK‐520 on osteoclastogenesis is realized through impairment of the NF‐kB (nuclear factor‐κB) and MAPK (mitogen‐activated protein kinase) signaling pathways. These results demonstrate that DK‐520, like Niclosamide, effectively inhibits the early stage of osteoclastogenesis. The findings presented here, together with its increased oral plasma concentrations and bioavailability, suggest that DK‐520 may be a promising drug candidate for treatment of osteoclast‐related diseases.
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Affiliation(s)
- Yurui Jiao
- Department of Endocrinology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Chenglong Chen
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China
| | - Xijian Hu
- Department of Orthopedics, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Xu Feng
- Department of Pathology, University of Alabama at Birmingham, AL, USA
| | - Zhenqi Shi
- Department of Pathology, University of Alabama at Birmingham, AL, USA
| | - Jie Cao
- Department of Endocrinology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Qing Li
- Department of Endocrinology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Yikun Zhu
- Department of Endocrinology, The Second Hospital of Shanxi Medical University, Taiyuan, China
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14
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Wu T, Sun J, Tan L, Yan Q, Li L, Chen L, Liu X, Bin S. Enhanced osteogenesis and therapy of osteoporosis using simvastatin loaded hybrid system. Bioact Mater 2020; 5:348-357. [PMID: 32206736 PMCID: PMC7078127 DOI: 10.1016/j.bioactmat.2020.03.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/01/2020] [Accepted: 03/06/2020] [Indexed: 12/02/2022] Open
Abstract
Postmenopausal osteoporosis is a common chronic dynamic bone disorder, caused by estrogen deficiency. To address this issue, we constructed a controlled drug-release system composed of poly (N-isopropylacrylamide) brush modified mesoporous hydroxyapatite (MHA-SIM-P) loaded with simvastatin (SIM) using an ovariectomised (OVX) rat model. Quantitative alkaline phosphatase activity assay, alizarin red staining and RT-PCR were tested to evaluate the osteogenic ability in vitro. The results showed that the MHA-SIM-P nanoparticles significantly improved the osteogenic differentiation of OVX bone marrow stromal cells (BMSCs) in vitro. In osteoporotic animal model, the therapeutic efficiency for bone defect was evaluated by μCT analysis, tartrate-resistant acid phosphatase, haematoxylin and eosin staining, which showed improved bone formation and less osteoclastic response in OVX rats after surgery for 3 and 6 weeks. This polymer brush modified MHA system provided a sustained release system of hydrophobic SIM to inhibit osteoporosis together with MHA nanoparticle promoting the osteogenesis. Thus, this novel strategy exhibited great potential for promoting osteogenic ability and treating local osteoporotic defects.
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Affiliation(s)
- Tao Wu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, Department of Dental Implantology, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, PR China
| | - Jing Sun
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, Department of Dental Implantology, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, PR China
| | - Lei Tan
- Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, China
| | - Qi Yan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, Department of Dental Implantology, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, PR China
| | - Lei Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, Department of Dental Implantology, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, PR China
| | - Liangwen Chen
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, Department of Dental Implantology, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, PR China
| | - Xiangmei Liu
- Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, China
| | - Shi Bin
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, Department of Dental Implantology, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, PR China
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15
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Adapala NS, Swarnkar G, Arra M, Shen J, Mbalaviele G, Ke K, Abu-Amer Y. Inflammatory osteolysis is regulated by site-specific ISGylation of the scaffold protein NEMO. eLife 2020; 9:56095. [PMID: 32202502 PMCID: PMC7145425 DOI: 10.7554/elife.56095] [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: 02/17/2020] [Accepted: 03/22/2020] [Indexed: 01/30/2023] Open
Abstract
Inflammatory osteolysis is governed by exacerbated osteoclastogenesis. Ample evidence points to central role of NF-κB in such pathologic responses, yet the precise mechanisms underpinning specificity of these responses remain unclear. We propose that motifs of the scaffold protein IKKγ/NEMO partly facilitate such functions. As proof-of-principle, we used site-specific mutagenesis to examine the role of NEMO in mediating RANKL-induced signaling in mouse bone marrow macrophages, known as osteoclast precursors. We identified lysine (K)270 as a target regulating RANKL signaling as K270A substitution results in exuberant osteoclastogenesis in vitro and murine inflammatory osteolysis in vivo. Mechanistically, we discovered that K270A mutation disrupts autophagy, stabilizes NEMO, and elevates inflammatory burden. Specifically, K270A directly or indirectly hinders binding of NEMO to ISG15, a ubiquitin-like protein, which we show targets the modified proteins to autophagy-mediated lysosomal degradation. Taken together, our findings suggest that NEMO serves as a toolkit to fine-tune specific signals in physiologic and pathologic conditions. The human skeleton contains over 200 bones that together act as an internal framework for the body. Over our lifetime, the body constantly removes older bone tissue from the skeleton and replaces it with new bone tissue. This “bone remodeling” also controls how bones are repaired after being damaged by injuries, disease or normal wear and tear. Cells known as osteoclasts are responsible for breaking down old bone tissue and participate in repairing damaged bone. A cellular pathway known as NF-kB signaling stimulates other cells called “bone marrow macrophages” to become osteoclasts. A certain level of NF-kB signaling is required to maintain a healthy skeleton. However, under certain inflammatory conditions, the level of NF-kB signaling becomes too high causing hyperactive osteoclasts to accumulate and inflict severe bone breakdown. This abnormal osteoclast activity leads to eroded and fragile bones and joints, as is the case in diseases such as rheumatoid arthritis and osteoporosis. Previous studies have shown that a protein called NEMO is a core component of the NF-kB signal pathway, but the precise role of NEMO in the diseased response remained unclear. Adapala, Swarnkar, Arra et al. have now used site-directed mutagenesis approach to study the role of NEMO in bone marrow macrophages in mice. The experiments showed that one specific site within the NEMO protein, referred to as lysine 270, is crucial for its role in controlling osteoclasts and the breakdown of bone tissue. Mutating NEMO at lysine 270 led to uncontrolled NF-kB signaling in the bone marrow macrophages. Further experiments showed that lysine 270 served as a sensor to allow NEMO to bind another protein called ISG15, which in turn helped to decrease NF-kB signaling and slow down the erosion of the bone. These findings suggest that site-specific targeting of NEMO, rather than inhibiting the whole NF-kB pathway, may help to reduce the symptoms of bone disease while maintaining the beneficial roles of this essential pathway. However, additional research is required to identify NEMO sites responsible for controlling the inflammatory component.
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Affiliation(s)
- Naga Suresh Adapala
- Department of Orthopaedic Surgery and Cell Biology & Physiology, Washington University School of Medicine, St. Louis, United States
| | - Gaurav Swarnkar
- Department of Orthopaedic Surgery and Cell Biology & Physiology, Washington University School of Medicine, St. Louis, United States
| | - Manoj Arra
- Department of Orthopaedic Surgery and Cell Biology & Physiology, Washington University School of Medicine, St. Louis, United States
| | - Jie Shen
- Department of Orthopaedic Surgery and Cell Biology & Physiology, Washington University School of Medicine, St. Louis, United States
| | - Gabriel Mbalaviele
- Bone and Mineral Division, Department of Medicine, Washington University School of Medicine, St. Louis, United States
| | - Ke Ke
- Department of Orthopaedic Surgery and Cell Biology & Physiology, Washington University School of Medicine, St. Louis, United States
| | - Yousef Abu-Amer
- Department of Orthopaedic Surgery and Cell Biology & Physiology, Washington University School of Medicine, St. Louis, United States.,Shriners Hospital for Children, St. Louis, United States
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16
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Ihn HJ, Kim TH, Kim K, Kim GY, Jeon YJ, Choi YH, Bae JS, Kim JE, Park EK. 2-O-digalloyl-1,3,4,6-tetra-O-galloyl-β-D-glucose isolated from Galla Rhois suppresses osteoclast differentiation and function by inhibiting NF-κB signaling. BMB Rep 2020. [PMID: 31068248 PMCID: PMC6605525 DOI: 10.5483/bmbrep.2019.52.6.063] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Natural compounds isolated from medicinal herbs and plants have immense significance in maintaining bone health. Hydrolysable tannins have been shown to possess a variety of medicinal properties including antiviral, anticancer, and anti-osteoclastogenic activities. As a part of a study on the discovery of alternative agent against skeletal diseases, we isolated a hydrolysable tannin, 2-O-digalloyl-1,3,4,6-tetra-O-galloyl- β-D-glucose (DTOGG), from Galla Rhois and examined the effect on osteoclast formation and function. We found that DTOGG significantly inhibited receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclast differentiation by downregulating the expression of the key regulator in osteoclastogenesis as well as osteoclast-related genes. Analysis of RANKL/RANK signaling revealed that DTOGG impaired activation of IκBα and p65 in the nuclear factor kappa-light-chain- enhancer of activated B cells (NF-κB) signaling pathway. Furthermore, DTOGG reduced bone resorbing activity of osteoclasts, compared to the vehicle-treated control. These results suggest that DTOGG could be a useful natural compound to manage osteoclast-mediated skeletal diseases.
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Affiliation(s)
- Hye Jung Ihn
- Institute for Hard Tissue and Bio-tooth Regeneration (IHBR), Kyungpook National University, Daegu 41940, Korea
| | - Tae Hoon Kim
- Department of Food Science and Biotechnology, Daegu University, Gyeongsan 38453, Korea
| | - Kiryeong Kim
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu 41940, Korea
| | - Gi-Young Kim
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju 63243, Korea
| | - You-Jin Jeon
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju 63243, Korea
| | - Yung Hyun Choi
- Department of Biochemistry, College of Korean Medicine, Dong-Eui University, Busan 47227, Korea
| | - Jong-Sup Bae
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Korea
| | - Jung-Eun Kim
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Korea
| | - Eui Kyun Park
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu 41940, Korea
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17
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Li C, Chen Y, Xie L, Zhang R. Transcription factor Pf-Rel regulates expression of matrix protein genes Prismalin-14 and MSI60 in the pearl oyster Pinctada fucata. Acta Biochim Biophys Sin (Shanghai) 2019; 51:484-491. [PMID: 30989236 DOI: 10.1093/abbs/gmz031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/18/2019] [Accepted: 03/06/2019] [Indexed: 11/12/2022] Open
Abstract
Molluscan shell is a biomineral that consists of a highly organized calcium carbonate composite. Organisms mainly use matrix proteins to elaborately control the biomineralization process, but knowledge of their regulatory mechanisms is limited. The transcription factor Pf-Rel, which belongs to the Rel/nuclear factor-κB family, was shown to regulate transcription at the Nacrein promoter in the pearl oyster Pinctada fucata. Here, we further explored the transcriptional regulation mechanisms of Pf-Rel on the matrix proteins Prismalin-14 and MSI60. The relative expression levels of Prismalin-14 and MSI60 were high in the mantle edge and mantle pallial tissues of P. fucata. These three genes were significantly up-regulated after shell notching, suggesting that they might play important roles during shell formation. Importantly, Pf-Rel gene knockdown by RNA interference led to down-regulation of Prismalin-14 and MSI60 expression. In transient co-transfection assays, Pf-Rel significantly up-regulated the promoter activities of the Prismalin-14 and MSI60 genes in a dose-dependent manner. Furthermore, the promoter regions of Prismalin-14 (-1794 to -1599 bp) and MSI60 (-2244 to -1141 bp) were required for the activation by Pf-Rel. Altogether, these results suggest that the transcription factor Pf-Rel can up-regulate the expression of the matrix protein genes Prismalin-14 and MSI60 during shell formation in P. fucata, which improves our understanding of transcription regulation at the molecular level during molluscan shell development.
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Affiliation(s)
- Chunyuan Li
- Protein Science Laboratory of the Ministry of Education, School of Life Science, Tsinghua University, Beijing, China
| | - Yan Chen
- Protein Science Laboratory of the Ministry of Education, School of Life Science, Tsinghua University, Beijing, China
| | - Liping Xie
- Protein Science Laboratory of the Ministry of Education, School of Life Science, Tsinghua University, Beijing, China
| | - Rongqing Zhang
- Protein Science Laboratory of the Ministry of Education, School of Life Science, Tsinghua University, Beijing, China.,Department of Biotechnology and Biomedicine, Yangtze Delta Region Institute of Tsinghua University, Jiaxing, China
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18
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Inhibition of Osteoclastogenesis by Thioredoxin-Interacting Protein-Derived Peptide (TN13). J Clin Med 2019; 8:jcm8040431. [PMID: 30934850 PMCID: PMC6518213 DOI: 10.3390/jcm8040431] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/22/2019] [Accepted: 03/27/2019] [Indexed: 12/25/2022] Open
Abstract
Overactivated osteoclasts lead to many bone diseases, including osteoporosis and rheumatoid arthritis. The p38 MAPK (p38) is an essential regulator of the receptor activator of nuclear factor-κB ligand (RANKL)-mediated osteoclastogenesis and bone loss. We previously reported TAT conjugated thioredoxin-interacting protein-derived peptide (TAT-TN13) as an inhibitor of p38 in hematopoietic stem cells (HSCs). Here, we examined the role of TAT-TN13 in the differentiation and function of osteoclasts. TAT-TN13 significantly suppressed RANKL-mediated differentiation of RAW 264.7 cells and bone marrow macrophages (BMMs) into osteoclasts. TAT-TN13 also inhibited the RANKL-induced activation of NF-κB and nuclear factor of activated T-cells cytoplasmic 1 (NFATc1), leading to the decreased expression of osteoclast-specific genes, including tartrate-resistant acid phosphatase (TRAP) and Cathepsin K. Additionally, TAT-TN13 treatment protected bone loss in ovariectomized (OVX) mice. Taken together, these results suggest that TAT-TN13 inhibits osteoclast differentiation by regulating the p38 and NF-κB signaling pathway; thus, it may be a useful agent for preventing or treating osteoporosis.
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19
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Wang Y, Chen X, Chen X, Zhou Z, Xu W, Xu F, Zhang S. AZD8835 inhibits osteoclastogenesis and periodontitis‐induced alveolar bone loss in rats. J Cell Physiol 2019; 234:10432-10444. [PMID: 30652303 DOI: 10.1002/jcp.27711] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 10/15/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Yexin Wang
- Shanghai Key Laboratory of Stomatology, Department of Oral Surgery Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Xuzhuo Chen
- Shanghai Key Laboratory of Stomatology, Department of Oral Surgery Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Xinwei Chen
- Shanghai Key Laboratory of Stomatology, Department of Oral Surgery Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Zhihang Zhou
- Shanghai Key Laboratory of Stomatology, Department of Oral Surgery Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Weifeng Xu
- Shanghai Key Laboratory of Stomatology, Department of Oral Surgery Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Feng Xu
- Shanghai Key Laboratory of Stomatology, Department of Oral Surgery Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Shanyong Zhang
- Shanghai Key Laboratory of Stomatology, Department of Oral Surgery Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine Shanghai China
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20
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Ma QL, Fang L, Jiang N, Zhang L, Wang Y, Zhang YM, Chen LH. Bone mesenchymal stem cell secretion of sRANKL/OPG/M-CSF in response to macrophage-mediated inflammatory response influences osteogenesis on nanostructured Ti surfaces. Biomaterials 2017; 154:234-247. [PMID: 29144982 DOI: 10.1016/j.biomaterials.2017.11.003] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 10/26/2017] [Accepted: 11/03/2017] [Indexed: 02/07/2023]
Abstract
Although it has been well established that osteogenic differentiation of bone mesenchymal stem cells (bMSCs) as well as osteoclastic differentiation of macrophages can be manipulated by the nanostructure of biomaterial surfaces, the interactions among the effects of the surface on immune cells and bMSCs remained unknown. Therefore, in this study, the osteogenic behaviors and secretion of osteoclastogenesis-related cytokines of human bMSCs on TiO2 nanotubular (NT) surfaces in conditioned medium (CM) generated by macrophages cultured on the respective NT surfaces (NT-CM) were analyzed. Although bMSCs showed consistent osteogenic behaviors on the NT5 and NT20 surfaces in both standard culture medium and both types of NT-CM, collagen synthesis and extracellular matrix mineralization were partially impeded on the NT20 surface in NT20-CM and bMSC cytokine secretions on the NT20 surface in NT20-CM elicited remarkable multinuclear giant cell and osteoclast formation compared with that observed on the NT5 surface in NT5-CM. After implantation in vivo, mineralized bone formation was significantly delayed around the NT20 implant compared with the NT5 implant, but both surfaces contributed to good bone formation after 12 weeks. The results obtained in this study advance our understanding of the confounding influence of the implant surface nanostructure, macrophage inflammatory response, and osteogenic differentiation of bMSCs as well as the retro-regulative effects of bMSCs on the osteoclastic differentiation of macrophages, and the culture system based on different NT surfaces and CM generated on the respective surfaces may provide a systematic research model for evaluating the performance of endosseous implants as well as a prospective approach for improving implant osseointegration via immune-regulation.
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Affiliation(s)
- Qian-Li Ma
- Department of Immunology, School of Basic Medicine, Fourth Military Medical University, Xi'an, China; Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an JiaoTong University, Xi'an, China; Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an JiaoTong University, Xi'an, China; Department of Prosthodontics, College of Stomatology, Xi'an JiaoTong University, Xi'an, China; Department of Stomatology, No.323 Hospital of PLA, Xi'an, 710054, China; Department of Prosthetic Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Liang Fang
- Department of Immunology, School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Nan Jiang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an JiaoTong University, Xi'an, China; Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an JiaoTong University, Xi'an, China; Department of Oral Prevention, College of Stomatology, Xi'an JiaoTong University, Xi'an, 710004, China
| | - Liang Zhang
- Department of Stomatology, No.323 Hospital of PLA, Xi'an, 710054, China
| | - Ying Wang
- Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Yu-Mei Zhang
- Department of Prosthetic Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, China.
| | - Li-Hua Chen
- Department of Immunology, School of Basic Medicine, Fourth Military Medical University, Xi'an, China.
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21
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Dai X, Song R, Xiong Y. The expression of ERK and JNK in patients with an endemic osteochondropathy, Kashin-Beck disease. Exp Cell Res 2017; 359:337-341. [PMID: 28807789 DOI: 10.1016/j.yexcr.2017.08.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 08/06/2017] [Accepted: 08/08/2017] [Indexed: 11/26/2022]
Abstract
Kashin-Beck disease (KBD) is a chronic, endemic osteochondropathy. Its etiopathogenesis is still obscure until now. Epidemiological observation has shown that low selenium play a crucial role in the pathogenesis of KBD. Extracellular signal-regulated kinases (ERKs) and C-Jun N-terminal kinase (JNK), members of the mitogen-activated protein kinase (MAPK) superfamily, play an important role in cell proliferation and differentiation. Nuclear factor-ĸB (NF-ĸB), an important signaling mediator for inflammatory and immune responses, is involved in the regulation of osteoclastogenesis. In the present study, we investigated the expression of ERK and JNK signal molecular, as well as nuclear factor-ĸB in the pathogenesis of Kashin-Beck disease, evaluated the effect of selenium on ERK signal pathway. The expression levels of ERK and JNK signal pathway, as well as nuclear factor-ĸB were investigated for 218 patients and 209 controls by immunoblot analysis in whole blood. Evaluated the effect of selenium on ERK signal pathway by Na2SeO3 treatment. The protein levels of pRaf-1, pMek1/2 and pErk1/2 decreased significantly in KBD patients, p-JNK and NF-ĸB increased in KBD patients. Furthermore, Na2SeO3 treatment improved the reduction of proteins in ERK signal pathway. These findings indicated that ERK and JNK signaling pathways, as well as the expression level of NF-κB signaling molecular are important contributor to the pathogenesis of KBD. Selenium stimulates the phosphorylation of the ERK signaling pathway.
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Affiliation(s)
- XiaoXia Dai
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission of the people's Rupublic of China, Xi'an Jiaotong University Health Science Center, No. 76 Yanta West Road, Xi'an, Shaanxi 710061, China
| | - RuiXia Song
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission of the people's Rupublic of China, Xi'an Jiaotong University Health Science Center, No. 76 Yanta West Road, Xi'an, Shaanxi 710061, China
| | - YongMin Xiong
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission of the people's Rupublic of China, Xi'an Jiaotong University Health Science Center, No. 76 Yanta West Road, Xi'an, Shaanxi 710061, China.
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22
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Kim JM, Lee JH, Lee GS, Noh EM, Song HK, Gu DR, Kim SC, Lee SH, Kwon KB, Lee YR. Sophorae Flos extract inhibits RANKL-induced osteoclast differentiation by suppressing the NF-κB/NFATc1 pathway in mouse bone marrow cells. Altern Ther Health Med 2017; 17:164. [PMID: 28335757 PMCID: PMC5364702 DOI: 10.1186/s12906-016-1550-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 09/28/2016] [Indexed: 11/28/2022]
Abstract
Background Sophorae Flos (SF) is a composite of flowers and buds of Styphnolobium japonicum (L.) Schott and has been used in traditional Korean and Chinese medicine for the treatment of hemostasis and inflammation. Previous studies reported that SF possesses anti-obesity properties, as well as anti-allergic, anti-proliferative, and anti-inflammatory activities. However, the effect of SF in bone resorption has not been studies. In this study, we examined the potential of SF extract (SFE) to inhibit receptor activator of NF-κB ligand (RANKL) -induced osteoclast differentiation in cultured mouse-derived bone marrow macrophages (BMMs). Methods BMMs, that act as osteoclast precursors, were cultured with M-CSF (50 ng/ml) and RANKL (100 ng/ml) for 4 days to generate osteoclasts. Osteoclast differentiation was measured by tartrate-resistant acidic phosphatase (TRAP) staining and the TRAP solution assay. Osteoclast differentiation marker genes were analyzed by the quantitative real-time polymerase chain reaction analysis. RANKLs signaling pathways were confirmed through western blotting. Results SFE significantly decreased osteoclast differentiation in a dose-dependent manner. SFE inhibited RANKL-induced osteoclastogenesis by suppressing NF-κB activation. By contrast, SFE did not affect phospholipase C gamma 2 or subsequent cAMP response element binding activation. SFE inhibited the RANKL-induced expression of nuclear factor of activated T cells c1 (NFATc1). Conclusions SFE attenuated the RANKL-mediated induction of NF-κB through inhibition of IκBα phosphorylation, which contributed to inhibiting of RANKL-induced osteoclast differentiation through downregulation of NFATc1.
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23
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Bajijiasu Abrogates Osteoclast Differentiation via the Suppression of RANKL Signaling Pathways through NF-κB and NFAT. Int J Mol Sci 2017; 18:ijms18010203. [PMID: 28106828 PMCID: PMC5297833 DOI: 10.3390/ijms18010203] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/09/2017] [Accepted: 01/11/2017] [Indexed: 01/08/2023] Open
Abstract
Pathological osteolysis is commonly associated with osteoporosis, bone tumors, osteonecrosis, and chronic inflammation. It involves excessive resorption of bone matrix by activated osteoclasts. Suppressing receptor activator of NF-κB ligand (RANKL) signaling pathways has been proposed to be a good target for inhibiting osteoclast differentiation and bone resorption. Bajijiasu—a natural compound derived from Morinda officinalis F. C. How—has previously been shown to have anti-oxidative stress property; however, its effect and molecular mechanism of action on osteoclastogenesis and bone resorption remains unclear. In the present study, we found that Bajijiasu dose-dependently inhibited RANKL-induced osteoclast formation and bone resorption from 0.1 mM, and reached half maximal inhibitory effects (IC50) at 0.4 mM without toxicity. Expression of RANKL-induced osteoclast specific marker genes including cathepsin K (Ctsk), nuclear factor of activated T-cells cytoplasmic 1 (NFATc1), tartrate resistant acid phosphatase (TRAcP), vacuolar-type H+-ATPase V0 subunit D2 (V-ATPase d2), and (matrix metalloproteinase-2 (MMP2) was inhibited by Bajijiasu treatment. Luciferase reporter gene studies showed that Bajijiasu could significantly reduce the expression and transcriptional activity of NFAT as well as RANKL-induced NF-κB activation in a dose-dependent manner. Further, Bajijiasu was found to decrease the RANKL-induced phosphorylation of extracellular signal-regulated kinases (ERK), inhibitor of κB-α (IκB-α), NFAT, and V-ATPase d2. Taken together, this study revealed Bajijiasu could attenuate osteoclast formation and bone resorption by mediating RANKL signaling pathways, indicative of a potential effect of Bajijiasu on osteolytic bone diseases.
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24
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Yamaguchi M. The botanical molecule p-hydroxycinnamic acid as a new osteogenic agent: insight into the treatment of cancer bone metastases. Mol Cell Biochem 2016; 421:193-203. [DOI: 10.1007/s11010-016-2803-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 08/25/2016] [Indexed: 10/21/2022]
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25
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Song F, Zhou L, Zhao J, Liu Q, Yang M, Tan R, Xu J, Zhang G, Quinn JMW, Tickner J, Huang Y, Xu J. Eriodictyol Inhibits RANKL-Induced Osteoclast Formation and Function Via Inhibition of NFATc1 Activity. J Cell Physiol 2016; 231:1983-93. [PMID: 26754483 DOI: 10.1002/jcp.25304] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 01/06/2016] [Indexed: 12/22/2022]
Abstract
Receptor activator of nuclear factor kappa-B ligand (RANKL) induces differentiation and function of osteoclasts through triggering multiple signaling cascades, including NF-κB, MAPK, and Ca(2+) -dependent signals, which induce and activate critical transcription factor NFATc1. Targeting these signaling cascades may serve as an effective therapy against osteoclast-related diseases. Here, by screening a panel of natural plant extracts with known anti-inflammatory, anti-tumor, or anti-oxidant properties for possible anti-osteoclastogenic activities we identified Eriodictyol. This flavanone potently suppressed RANKL-induced osteoclastogenesis and bone resorption in a dose-dependent manner without detectable cytotoxicity, suppressing RANKL-induced NF-κB, MAPK, and Ca(2+) signaling pathways. Eriodictyol also strongly inhibited RANKL-induction of c-Fos levels (a critical component of AP-1 transcription factor required by osteoclasts) and subsequent activation of NFATc1, concomitant with reduced expression of osteoclast specific genes including cathepsin K (Ctsk), V-ATPase-d2 subunit, and tartrate resistant acid phosphatase (TRAcP/Acp5). Taken together, these data provide evidence that Eriodictyol could be useful for the prevention and treatment of osteolytic disorders associated with abnormally increased osteoclast formation and function. J. Cell. Physiol. 231: 1983-1993, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Fangming Song
- Department of Biochemistry and Molecular Biology, Key Laboratory of Biological Molecular Medicine Research of Guangxi Higher Education, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China.,School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia.,Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, China
| | - Lin Zhou
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | - Jinmin Zhao
- Department of Biochemistry and Molecular Biology, Key Laboratory of Biological Molecular Medicine Research of Guangxi Higher Education, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China.,Department of Orthopaedic Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Qian Liu
- Department of Biochemistry and Molecular Biology, Key Laboratory of Biological Molecular Medicine Research of Guangxi Higher Education, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China.,Department of Orthopaedic Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Mingli Yang
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | - Renxiang Tan
- Institute of Functional Biomolecules, Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Jun Xu
- Research Center for Drug Discovery (RCDD), School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Ge Zhang
- Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Julian M W Quinn
- The Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Jennifer Tickner
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | - Yuanjiao Huang
- Department of Biochemistry and Molecular Biology, Key Laboratory of Biological Molecular Medicine Research of Guangxi Higher Education, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China.,Medical Scientific Research Center, Guangxi Medical University, Nanning, Guangxi, China
| | - Jiake Xu
- Department of Biochemistry and Molecular Biology, Key Laboratory of Biological Molecular Medicine Research of Guangxi Higher Education, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China.,School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
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26
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Zeng XZ, He LG, Wang S, Wang K, Zhang YY, Tao L, Li XJ, Liu SW. Aconine inhibits RANKL-induced osteoclast differentiation in RAW264.7 cells by suppressing NF-κB and NFATc1 activation and DC-STAMP expression. Acta Pharmacol Sin 2016; 37:255-63. [PMID: 26592521 DOI: 10.1038/aps.2015.85] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 08/27/2015] [Indexed: 11/10/2022] Open
Abstract
AIM Aconiti Lateralis Radix Preparata is a traditional Chinese medicine used to treat chronic arthritis and is highly effective against rheumatoid arthritis. However, the effects of aconine, a derivative of aconitum alkaloids, on osteoclasts, which can absorb bone, remain unknown. Here, we investigated the effects of aconine on osteoclast differentiation and bone resorption in vitro. METHODS The viability of mouse leukemic monocyte/macrophage cell line RAW264.7 was measured using CCK-8 assays. Osteoclast differentiation was induced by incubation of RAW264.7 cells in the presence of RANKL, and assessed with TRAP staining assay. Bone resorption was examined with bone resorption pits assay. The expression of relevant genes and proteins was analyzed using RT-PCR and Western blots. The activation of NF-κB and nuclear factor of activated T-cells (NFAT) was examined using stable NF-κB and NFATc1 luciferase reporter gene systems, RT-PCR and Western blot analysis. RESULTS Aconine (0.125, 0.25 μmol/L) did not affect the viability of RAW264.7 cells, but dose-dependently inhibited RANKL-induced osteoclast formation and bone resorptive activity. Furthermore, aconine dose-dependently inhibited the RANKL-induced activation of NF-κB and NFATc1 in RAW264.7 cells, and subsequently reduced the expression of osteoclast-specific genes (c-Src, β3-Integrin, cathepsin K and MMP-9) and the expression of dendritic cell-specific transmembrane protein (DC-STAMP), which played an important role in cell-cell fusion. CONCLUSION These findings suggest that aconine inhibits RANKL-induced osteoclast differentiation in RAW264.7 cells by suppressing the activation of NF-κB and NFATc1 and the expression of the cell-cell fusion molecule DC-STAMP.
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27
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Qin S, Ang E, Dai L, Yang X, Ye D, Chen H, Zhou L, Yang M, Teguh D, Tan R, Xu J, Tickner J, Pavlos NJ, Xu J. Natural Germacrane Sesquiterpenes Inhibit Osteoclast Formation, Bone Resorption, RANKL-Induced NF-κB Activation, and IκBα Degradation. Int J Mol Sci 2015; 16:26599-607. [PMID: 26556352 PMCID: PMC4661831 DOI: 10.3390/ijms161125972] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 10/25/2015] [Accepted: 10/28/2015] [Indexed: 12/21/2022] Open
Abstract
Osteolytic bone diseases are commonly presented with enhanced osteoclast formation and bone resorption. Sesquiterpene lactone natural compounds have been found to possess anti-inflammatory and immune-modulation effects. Here, we identified three germacrane sesquiterpenes using computer-based virtual screening for the structural similarity with sesquiterpene lactone, parthenolide. We showed that natural germacrane sesquiterpene compounds A, B, and C inhibit osteoclast formation and bone resorption in a dose-dependent manner, with relative potency compound A > compound C > compound B based on their equimolar concentrations. Mechanistic studies by Luciferase reporter gene assay and Western blot analysis showed that germacrane sesquiterpene compound A inhibits RANKL-induced activation of NF-κB and IκBα degradation. This study reveals that natural germacrane sesquiterpene compounds are inhibitors for osteoclast formation and bone resorption, and provides evidence that naturally-occurring compounds might be beneficial as alternative medicine for the prevention and treatment of osteolysis.
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Affiliation(s)
- Shengnan Qin
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Medical College, Jinan University, Guangzhou 510220, China.
| | - Estabelle Ang
- School of Dentistry, University of Western Australia, Perth, WA 6009, Australia.
| | - Libing Dai
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Medical College, Jinan University, Guangzhou 510220, China.
| | - Xiaohong Yang
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Medical College, Jinan University, Guangzhou 510220, China.
| | - Dongping Ye
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Medical College, Jinan University, Guangzhou 510220, China.
- School of Pathology and Laboratory Medicine, the University of Western Australia, Perth, WA 6009, Australia.
| | - Honghui Chen
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Medical College, Jinan University, Guangzhou 510220, China.
| | - Lin Zhou
- School of Pathology and Laboratory Medicine, the University of Western Australia, Perth, WA 6009, Australia.
| | - Mingli Yang
- School of Pathology and Laboratory Medicine, the University of Western Australia, Perth, WA 6009, Australia.
| | - Dian Teguh
- School of Pathology and Laboratory Medicine, the University of Western Australia, Perth, WA 6009, Australia.
| | - Renxiang Tan
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China.
| | - Jun Xu
- Research Center for Drug Discovery (RCDD), School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou 510006, China.
| | - Jennifer Tickner
- School of Pathology and Laboratory Medicine, the University of Western Australia, Perth, WA 6009, Australia.
| | - Nathan J Pavlos
- Centre for Orthopaedic Research, School of Surgery, the University of Western Australia, Perth, WA 6009, Australia.
| | - Jiake Xu
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Medical College, Jinan University, Guangzhou 510220, China.
- School of Pathology and Laboratory Medicine, the University of Western Australia, Perth, WA 6009, Australia.
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28
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Sun J, Xu G, Wang Z, Li Q, Cui Y, Xie L, Zhang R. The Effect of NF-κB Signalling Pathway on Expression and Regulation of Nacrein in Pearl Oyster, Pinctada fucata. PLoS One 2015; 10:e0131711. [PMID: 26158525 PMCID: PMC4497715 DOI: 10.1371/journal.pone.0131711] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 06/04/2015] [Indexed: 12/15/2022] Open
Abstract
Nacrein is the first identified and widely investigated molluscan matrix protein and is considered to play an important role in the shell formation of the pearl oyster, Pinctada fucata. Here, we investigate the effect of the NF-κB signalling pathway on Nacrein gene expression in P. fucata to elucidate the mechanisms involved in shell formation. Inhibition of NF-κB signalling decreased Nacrein promoter-dependent luciferase activity. However, co-transfection of the Nacrein promoter vector with Pf-IKK or Pf-Rel expression plasmids could enhance luciferase activity, thus proving NF-κB signalling could regulate the transcriptional activity of the Nacrein promoter. Gene silencing by RNA interference and subsequent observation of the inner surface of the nacreous layer of oyster shells by SEM, showed that suppression of the gene Pf-Rel lead to a partial inhibition of Nacrein expression, not only at the mRNA level but also at the protein level. The inner surface of the shells became abnormal. Electrophoretic mobility shift assays (EMSAs) revealed that Pf-Rel could directly bind to the relative sites of the Nacrein promoter. These results confirm that an important component of the NF-κB signalling pathway, Pf-Rel, can directly bind the Nacrein promoter in P. fucata, and regulate its transcription and shell formation.
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Affiliation(s)
- Juan Sun
- Institute of Marine Biotechnology, School of Life Science, Tsinghua University, Beijing, China
| | - Guangrui Xu
- Institute of Marine Biotechnology, School of Life Science, Tsinghua University, Beijing, China
| | - Zeshi Wang
- Institute of Marine Biotechnology, School of Life Science, Tsinghua University, Beijing, China
| | - Qing Li
- Institute of Marine Biotechnology, School of Life Science, Tsinghua University, Beijing, China
| | - Yu Cui
- Institute of Marine Biotechnology, School of Life Science, Tsinghua University, Beijing, China
| | - Liping Xie
- Institute of Marine Biotechnology, School of Life Science, Tsinghua University, Beijing, China
- Protein Science Laboratory of the Ministry of Education, Tsinghua University, Beijing, China
- * E-mail: (LX); (RZ)
| | - Rongqing Zhang
- Institute of Marine Biotechnology, School of Life Science, Tsinghua University, Beijing, China
- Protein Science Laboratory of the Ministry of Education, Tsinghua University, Beijing, China
- * E-mail: (LX); (RZ)
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Yamaguchi M, Vikulina T, Arbiser JL, Weitzmann MN. Suppression of NF-κB activation by gentian violet promotes osteoblastogenesis and suppresses osteoclastogenesis. Curr Mol Med 2015; 14:783-92. [PMID: 25056540 DOI: 10.2174/1566524014666140724104842] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 03/28/2014] [Accepted: 04/12/2014] [Indexed: 01/23/2023]
Abstract
Skeletal mass is regulated by the coordinated action of bone forming osteoblasts and bone resorbing osteoclasts. Accelerated rates of bone resorption relative to bone formation lead to net bone loss and the development of osteoporosis, a devastating disease that predisposes the skeleton to fractures. Bone fractures are associated with significant morbidity and in the case of hip fractures, high mortality. Gentian violet (GV), a cationic triphenylmethane dye, has long been used as an antifungal and antibacterial agent and is presently under investigation as a potential chemotherapeutic and antiangiogenic agent. However, effects on bone cells have not been previously reported and the mechanisms of action of GV, are poorly understood. In this study we show that GV suppresses receptor activator of NF-κB ligand (RANKL)-induced differentiation of RAW264.7 osteoclast precursors into mature osteoclasts, but paradoxically stimulates the differentiation of MC3T3 cells into mineralizing osteoblasts. These actions stem from the capacity of GV to suppress activation of the nuclear factor kappa B (NF-κB) signal transduction pathway that is required for osteoclastogenesis, but inhibitory to osteoblast differentiation and activity. Our data reveal that GV is an inhibitor of NF-κB activation and may hold promise for modulation of bone turnover to promote a balance between bone formation and bone resorption, favorable to gain of bone mass.
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Affiliation(s)
| | | | | | - M N Weitzmann
- (M.N. Weitzmann) 101 Woodruff Circle, 1305 WMRB, Atlanta, Georgia 30322, USA.
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30
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Kim J, Lee H, Kang KS, Chun KH, Hwang GS. Cordyceps militaris Mushroom and Cordycepin Inhibit RANKL-Induced Osteoclast Differentiation. J Med Food 2015; 18:446-52. [DOI: 10.1089/jmf.2014.3215] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Jinhee Kim
- Laboratory of Cell Differentiation Research, College of Korean Medicine, Gachon University, Seongnam, Korea
| | - Hyejin Lee
- Laboratory of Cell Differentiation Research, College of Korean Medicine, Gachon University, Seongnam, Korea
| | - Ki Sung Kang
- Laboratory of Cell Differentiation Research, College of Korean Medicine, Gachon University, Seongnam, Korea
| | - Kwang-Hoon Chun
- Gachon Institute of Pharmaceutical Sciences, College of Pharmacy, Gachon University, Incheon, Korea
| | - Gwi Seo Hwang
- Laboratory of Cell Differentiation Research, College of Korean Medicine, Gachon University, Seongnam, Korea
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31
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Swarnkar G, Abu-Amer Y. Regulation of NF-κB signaling in osteoclasts and myeloid progenitors. Methods Mol Biol 2015; 1280:527-42. [PMID: 25736770 DOI: 10.1007/978-1-4939-2422-6_31] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The transcription factor nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) is crucial for immune responses and skeletal development. Work in recent years has shown that various members of the NF-κB family are viable targets to regulate activity and survival of bone cells and hence bone metabolism. In this regard, deletion of upstream kinases or distal NF-κB subunits resulted with bone deformities. Thus, it has become increasingly apparent that detailed investigation of NF-κB in bone cells may provide opportunities to design new therapeutic modalities. In this chapter we present modified methodology describing efficient approaches to regulate the NF-κB pathway in vitro and in vivo to assess its function in bone cells and tissues.
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Affiliation(s)
- Gaurav Swarnkar
- Department of Orthopedic Surgery-Research, Washington University School of Medicine, 660 S. Euclid Ave, Campus Box 8233, Saint Louis, MO, 63110, USA
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Brue T, Quentien MH, Khetchoumian K, Bensa M, Capo-Chichi JM, Delemer B, Balsalobre A, Nassif C, Papadimitriou DT, Pagnier A, Hasselmann C, Patry L, Schwartzentruber J, Souchon PF, Takayasu S, Enjalbert A, Van Vliet G, Majewski J, Drouin J, Samuels ME. Mutations in NFKB2 and potential genetic heterogeneity in patients with DAVID syndrome, having variable endocrine and immune deficiencies. BMC MEDICAL GENETICS 2014; 15:139. [PMID: 25524009 PMCID: PMC4411703 DOI: 10.1186/s12881-014-0139-9] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 12/11/2014] [Indexed: 01/09/2023]
Abstract
Background DAVID syndrome is a rare condition combining anterior pituitary hormone deficiency with common variable immunodeficiency. NFKB2 mutations have recently been identified in patients with ACTH and variable immunodeficiency. A similar mutation was previously found in Nfkb2 in the immunodeficient Lym1 mouse strain, but the effect of the mutation on endocrine function was not evaluated. Methods We ascertained six unrelated DAVID syndrome families. We performed whole exome and traditional Sanger sequencing to search for causal genes. Lym1 mice were examined for endocrine developmental anomalies. Results Mutations in the NFKB2 gene were identified in three of our families through whole exome sequencing, and in a fourth by direct Sanger sequencing. De novo origin of the mutations could be demonstrated in three of the families. All mutations lie near the C-terminus of the protein-coding region, near signals required for processing of NFΚB2 protein by the alternative pathway. Two of the probands had anatomical pituitary anomalies, and one had growth and thyroid hormone as well as ACTH deficiency; these findings have not been previously reported. Two children of one of the probands carried the mutation and have to date exhibited only an immune phenotype. No mutations were found near the C-terminus of NFKB2 in the remaining two probands; whole exome sequencing has been performed for one of these. Lym1 mice, carrying a similar Nfkb2 C-terminal mutation, showed normal pituitary anatomy and expression of proopiomelanocortin (POMC). Conclusions We confirm previous findings that mutations near the C-terminus of NFKB2 cause combined endocrine and immunodeficiencies. De novo status of the mutations was confirmed in all cases for which both parents were available. The mutations are consistent with a dominant gain-of-function effect, generating an unprocessed NFKB2 super-repressor protein. We expand the potential phenotype of such NFKB2 mutations to include additional pituitary hormone deficiencies as well as anatomical pituitary anomalies. The lack of an observable endocrine phenotype in Lym1 mice suggests that the endocrine component of DAVID syndrome is either not due to a direct role of NFKB pathways on pituitary development, or else that human and mouse pituitary development differ in its requirements for NFKB pathway function. Electronic supplementary material The online version of this article (doi:10.1186/s12881-014-0139-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Thierry Brue
- Aix-Marseille University, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille (CRN2M), Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7286, Faculté de Médecine de Marseille, 13344, Marseille, France. .,Assistance Publique-Hôpitaux de Marseille (APHM), Department of Endocrinology, Centre de Référence des Maladies Rares d'Origine Hypophysaire, Hôpital de la Timone, 13005, Marseille, France.
| | - Marie-Hélène Quentien
- Aix-Marseille University, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille (CRN2M), Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7286, Faculté de Médecine de Marseille, 13344, Marseille, France. .,Assistance Publique-Hôpitaux de Marseille (APHM), Department of Endocrinology, Centre de Référence des Maladies Rares d'Origine Hypophysaire, Hôpital de la Timone, 13005, Marseille, France.
| | - Konstantin Khetchoumian
- Laboratoire de Génétique moléculaire, Institut de recherches cliniques de Montréal, 110 Avenue des Pins Ouest, Montréal, QC, H2W 1R7, Canada.
| | - Marco Bensa
- Ospedale Bufalini, Department of Paediatrics, Cesena, FC, Italy.
| | | | - Brigitte Delemer
- Departments of Endocrinology and of Pediatrics, Centre Hospitalier Robert Debré, 51092, Reims, France.
| | - Aurelio Balsalobre
- Laboratoire de Génétique moléculaire, Institut de recherches cliniques de Montréal, 110 Avenue des Pins Ouest, Montréal, QC, H2W 1R7, Canada.
| | - Christina Nassif
- Centre de Recherche du CHU Ste-Justine, 3175 Cote Ste-Catherine, Montreal, QC, Canada.
| | - Dimitris T Papadimitriou
- Department of Pediatric-Adolescent Endocrinology and Diabetes, Athens Medical Center, Athens, Greece.
| | - Anne Pagnier
- Clinique universitaire de pédiatrie, CHU de Grenoble, Grenoble, France.
| | - Caroline Hasselmann
- Centre de Recherche du CHU Ste-Justine, 3175 Cote Ste-Catherine, Montreal, QC, Canada.
| | - Lysanne Patry
- Centre de Recherche du CHU Ste-Justine, 3175 Cote Ste-Catherine, Montreal, QC, Canada.
| | | | - Pierre-François Souchon
- Departments of Endocrinology and of Pediatrics, Centre Hospitalier Robert Debré, 51092, Reims, France.
| | - Shinobu Takayasu
- Laboratoire de Génétique moléculaire, Institut de recherches cliniques de Montréal, 110 Avenue des Pins Ouest, Montréal, QC, H2W 1R7, Canada.
| | - Alain Enjalbert
- Aix-Marseille University, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille (CRN2M), Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7286, Faculté de Médecine de Marseille, 13344, Marseille, France. .,Assistance Publique-Hôpitaux de Marseille (APHM), Department of Endocrinology, Centre de Référence des Maladies Rares d'Origine Hypophysaire, Hôpital de la Timone, 13005, Marseille, France.
| | - Guy Van Vliet
- Endocrinology Service and Research Center, Department of Pediatrics, CHU Ste-Justine, University of Montreal, Montreal, QC, Canada.
| | - Jacek Majewski
- Department of Human Genetics, McGill University, Montreal, QC, Canada.
| | - Jacques Drouin
- Laboratoire de Génétique moléculaire, Institut de recherches cliniques de Montréal, 110 Avenue des Pins Ouest, Montréal, QC, H2W 1R7, Canada.
| | - Mark E Samuels
- Centre de Recherche du CHU Ste-Justine, 3175 Cote Ste-Catherine, Montreal, QC, Canada. .,Department of Medicine, University of Montreal, Montreal, QC, Canada.
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Kim JY, Park SH, Oh HM, Kwak SC, Baek JM, Lee MS, Rho MC, Oh J. Ampelopsis brevipedunculata extract prevents bone loss by inhibiting osteoclastogenesis in vitro and in vivo. Molecules 2014; 19:18465-78. [PMID: 25397737 PMCID: PMC6270923 DOI: 10.3390/molecules191118465] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 10/28/2014] [Accepted: 11/10/2014] [Indexed: 12/25/2022] Open
Abstract
Osteoclasts play a critical role in bone resorbing disorders such as osteoporosis, periodontitis, and rheumatoid arthritis. Therefore, discovery of agents capable of suppressing osteoclast differentiation may aid the development of a therapeutic access for the treatment of pathological bone loss. Ampelopsis brevipedunculata has been used as herbal folk medicine to treat liver diseases and inflammation in Asia. However, its effects on osteoclast differentiation are unknown. We were aimed to investigate the anti-osteoclastogenic activity in vitro and in vivo and to elucidate the underlying mechanism of Ampelopsis brevipedunculata extract (ABE). In this study, ABE inhibited receptor activator of NF-κB ligand (RANKL)-induced osteoclast differentiation, the formation of filamentous actin rings and the bone resorbing activity of mature osteoclasts. ABE inhibited RANKL-induced p38 and IκB phosphorylation and IκB degradation. Also, ABE suppressed the mRNA and protein expression of nuclear factor of activated T cells c1 (NFATc1) and c-Fos, and the mRNA expression of genes required for cell fusion and bone resorption, such as osteoclast-associatedreceptor (OSCAR), tartrate resistant acid phosphatase (TRAP), cathepsinK, dendritic cell-specific transmembrane protein(DC-STAMP), β3-integrin and osteoclast stimulatory transmembrane protein(OC-STAMP). Furthermore, results of micro-CT and histologic analysis indicated that ABE remarkably prevented lipopolysaccharide (LPS)-induced bone erosion. These results demonstrate that ABE prevents LPS-induced bone erosion through inhibition of osteoclast differentiation and function, suggesting the promise of ABE as a potential cure for various osteoclast-associated bone diseases.
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Affiliation(s)
- Ju-Young Kim
- Imaging Science-based Lung and Bone Diseases Research Center, Wonkwang University, Iksan, Jeonbuk 570-749, Korea.
| | - Sun-Hyang Park
- Department of Anatomy, School of Medicine, Wonkwang University, Iksan, Jeonbuk 570-749, Korea.
| | - Hyun Mee Oh
- Bioindustrial Process Research Center, Bio-Materials Research Institute, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Jeonbuk 580-185, Korea.
| | - Sung Chul Kwak
- Korea Institute of Science and Technology for Eastern Medicine (KISTEM), NeuMed Inc., Seoul 130-831, Korea.
| | - Jong Min Baek
- Department of Anatomy, School of Medicine, Wonkwang University, Iksan, Jeonbuk 570-749, Korea.
| | - Myeung Su Lee
- Imaging Science-based Lung and Bone Diseases Research Center, Wonkwang University, Iksan, Jeonbuk 570-749, Korea.
| | - Mun Chual Rho
- Bioindustrial Process Research Center, Bio-Materials Research Institute, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Jeonbuk 580-185, Korea.
| | - Jaemin Oh
- Imaging Science-based Lung and Bone Diseases Research Center, Wonkwang University, Iksan, Jeonbuk 570-749, Korea.
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Park B. Triptolide, a diterpene, inhibits osteoclastogenesis, induced by RANKL signaling and human cancer cells. Biochimie 2014; 105:129-36. [DOI: 10.1016/j.biochi.2014.07.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 07/06/2014] [Indexed: 10/25/2022]
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Sun SX, Guo HH, Zhang J, Yu B, Sun KN, Jin QH. BMP-2 and titanium particles synergistically activate osteoclast formation. ACTA ACUST UNITED AC 2014; 47:461-9. [PMID: 24820069 PMCID: PMC4086172 DOI: 10.1590/1414-431x20132966] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Accepted: 11/25/2013] [Indexed: 02/06/2023]
Abstract
A previous study showed that BMP-2 (bone morphogenetic protein-2) and wear debris can
separately support osteoclast formation induced by the receptor activator of NF-κB
ligand (RANKL). However, the effect of BMP-2 on wear debris-induced osteoclast
formation is unclear. In this study, we show that neither titanium particles nor
BMP-2 can induce osteoclast formation in RAW 264.7 mouse leukemic monocyte macrophage
cells but that BMP-2 synergizes with titanium particles to enhance osteoclast
formation in the presence of RANKL, and that at a low concentration, BMP-2 has an
optimal effect to stimulate the size and number of multinuclear osteoclasts,
expression of osteoclast genes, and resorption area. Our data also clarify that the
effects caused by the increase in BMP-2 on phosphorylated SMAD levels such as c-Fos
expression increased throughout the early stages of osteoclastogenesis. BMP-2 and
titanium particles stimulate the expression of p-JNK, p-P38, p-IkB, and P50 compared
with the titanium group. These data suggested that BMP-2 may be a crucial factor in
titanium particle-mediated osteoclast formation.
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Affiliation(s)
- S X Sun
- Department of Orthopedics, Affiliated Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China
| | - H H Guo
- Ningxia Medical University, Ningxia Hui Autonomous Region, China
| | - J Zhang
- Institute of Pathology, Xi'an Jiaotong University, Xi'an Shaanxi, China
| | - B Yu
- Ningxia Medical University, Ningxia Hui Autonomous Region, China
| | - K N Sun
- Department of Orthopedics, Affiliated Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China
| | - Q H Jin
- Department of Orthopedics, Affiliated Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China
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Jiang T, Qin A, Shao Z, Tian B, Zhai Z, Li H, Zhu Z, Dai K, Ming HZ, Yu Y, Jiang Q. OA10 Is a Novel p38alpha Mitogen-Activated Protein Kinase Inhibitor That Suppresses Osteoclast Differentiation and Bone Resorption. J Cell Biochem 2014; 115:959-66. [PMID: 24357524 DOI: 10.1002/jcb.24744] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 12/05/2013] [Indexed: 11/10/2022]
Affiliation(s)
- T. Jiang
- The Center of Diagnosis and Treatment for Joint Disease; Drum Tower Clinical Medical College of Nanjing Medical University; Jiangsu P.R. China
| | - A. Qin
- Centre for Orthopaedic Research, School of Surgery; The University of Western Australia; Perth Australia
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics; Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; Shanghai P.R. China
| | - Z.Y. Shao
- College of Pharmaceutical Sciences; Zhejiang University; Hangzhou P.R. China
| | - B. Tian
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics; Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; Shanghai P.R. China
| | - Z.J. Zhai
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics; Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; Shanghai P.R. China
| | - H.W. Li
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics; Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; Shanghai P.R. China
| | - Z.A. Zhu
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics; Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; Shanghai P.R. China
| | - K.R. Dai
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics; Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; Shanghai P.R. China
| | - H. Zheng Ming
- Centre for Orthopaedic Research, School of Surgery; The University of Western Australia; Perth Australia
| | - Y.P. Yu
- College of Pharmaceutical Sciences; Zhejiang University; Hangzhou P.R. China
| | - Q. Jiang
- The Center of Diagnosis and Treatment for Joint Disease; Drum Tower Clinical Medical College of Nanjing Medical University; Jiangsu P.R. China
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Abstract
The transcription factor NF-κB is a family of proteins involved in signaling pathways essential for normal cellular functions and development. Deletion of various components of this pathway resulted with abnormal skeletal development. Research in the last decade has established that NF-κB signaling mediates RANK ligand-induced osteoclastogenesis. Consistently, it was shown that inhibition of NF-κB was an effective approach to inhibit osteoclast formation and bone resorptive activity. Identification of the molecular machinery underlying NF-κB activation permitted osteoclast-specific deletion of the major components of this pathway. As a result, it was clear that deletion of members of the proximal IKK kinase complex and the distal NF-κB subunits and downstream regulators affected skeletal development. These studies provided several targets of therapeutic intervention in osteolytic diseases. NF-κB activity has been also described as the centerpiece of inflammatory responses and is considered a potent mediator of inflammatory osteolysis. Indeed, inflammatory insults exacerbate physiologic RANKL-induced NF-κB signals leading to exaggerated responses and to inflammatory osteolysis. These superimposed NF-κB activities appear to underlie several bone pathologies. This review will describe the individual roles of NF-κB molecules in bone resorption and inflammatory osteolysis.
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Affiliation(s)
- Y Abu-Amer
- Department of Orthopedic Surgery, Department of Cell Biology & Physiology, Washington University School of Medicine, 660S. Euclid Avenue, Saint Louis, MO 63110, USA.
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38
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Zhang Y, Otero JE, Abu-Amer Y. Ubiquitin-like domain of IKKβ regulates osteoclastogenesis and osteolysis. Calcif Tissue Int 2013; 93:78-85. [PMID: 23686246 PMCID: PMC3706195 DOI: 10.1007/s00223-013-9735-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 04/19/2013] [Indexed: 01/01/2023]
Abstract
The transcription factor NF-κB family is central for osteoclastogenesis and inflammatory osteolysis. Activation of NF-κB dimers is regulated by a kinase complex predominantly containing IKKα (IKK1), IKKβ (IKK2), and a regulatory subunit, IKKγ/NEMO. IKKα and IKKβ catalyze the cytoplasmic liberation and nuclear translocation of various NF-κB subunits. The requirement of IKKα and IKKβ for normal bone homeostasis has been established. Congruently, mice devoid of IKKα or IKKβ exhibit in vitro and in vivo defects in osteoclastogenesis, and IKKβ-null mice are refractory to inflammatory arthritis and osteolysis. To better understand the molecular mechanism underlying IKKβ function in bone homeostasis and bone pathologies, we conducted structure-function analysis to determine IKKβ functional domains in osteoclasts. IKKβ encompasses several domains, of which the ubiquitination-like domain (ULD) has been shown essential for IKKβ activation. In this study, we examined the role of ULD in IKKβ-mediated NF-κB activation in osteoclast precursors and its contribution to osteoclastogenesis and osteolysis. We generated and virally introduced IKKβ in which the ULD domain has been deleted (IKKβ∆ULD) into osteoclast progenitors. The results show that deletion of ULD diminishes IKKβ activity and that IKKβ∆ULD strongly inhibits osteoclastogenesis. In addition, unlike wild type (WT)-IKKβ, IKKβ∆ULD fail to restore RANKL-induced osteoclastogenesis by IKKβ-null precursors. Finally, we provide evidence that IKKβ∆ULD blocks inflammatory osteolysis in a model of murine calvarial osteolysis. Thus, we identified the ULD as crucial for IKKβ activity and osteoclastogenesis and found that ULD-deficient IKKβ is a potent inhibitor of osteoclastogenesis and osteolysis.
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Affiliation(s)
- Yanhong Zhang
- Department of Orthopaedic Surgery and Cell Biology & Physiology, Washington University School of Medicine, St. Louis, MO 63110
- Department of Medicine, Raritan Bay Medical Center, 530 New Brunswick Ave, Perth Amboy, NJ 08861
| | - Jesse E. Otero
- University of Iowa Hospitals and Clinics, Department of Orthopaedic Surgery, Iowa City, Iowa 52242
| | - Yousef Abu-Amer
- Department of Orthopaedic Surgery and Cell Biology & Physiology, Washington University School of Medicine, St. Louis, MO 63110
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Weitzmann MN. The Role of Inflammatory Cytokines, the RANKL/OPG Axis, and the Immunoskeletal Interface in Physiological Bone Turnover and Osteoporosis. SCIENTIFICA 2013; 2013:125705. [PMID: 24278766 PMCID: PMC3820310 DOI: 10.1155/2013/125705] [Citation(s) in RCA: 123] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Accepted: 12/24/2012] [Indexed: 05/30/2023]
Abstract
Although it has long been recognized that inflammation, a consequence of immune-driven processes, significantly impacts bone turnover, the degree of centralization of skeletal and immune functions has begun to be dissected only recently. It is now recognized that formation of osteoclasts, the bone resorbing cells of the body, is centered on the key osteoclastogenic cytokine, receptor activator of NF- κ B ligand (RANKL). Although numerous inflammatory cytokines are now recognized to promote osteoclast formation and skeletal degradation, with just a few exceptions, RANKL is now considered to be the final downstream effector cytokine that drives osteoclastogenesis and regulates osteoclastic bone resorption. The biological activity of RANKL is moderated by its physiological decoy receptor, osteoprotegerin (OPG). New discoveries concerning the sources and regulation of RANKL and OPG in physiological bone turnover as well as under pathological (osteoporotic) conditions continue to be made, opening a window to the complex regulatory processes that control skeletal integrity and the depth of integration of the skeleton within the immune response. This paper will examine the interconnection between bone turnover and the immune system and the implications thereof for physiological and pathological bone turnover.
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Affiliation(s)
- M. Neale Weitzmann
- Atlanta Department of Veterans Affairs Medical Center, Decatur, GA 30033, USA
- Division of Endocrinology and Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, 101 Woodruff Circle, 1305 WMRB, Atlanta, GA 30322, USA
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Sanguinarine inhibits osteoclast formation and bone resorption via suppressing RANKL-induced activation of NF-κB and ERK signaling pathways. Biochem Biophys Res Commun 2012; 430:951-6. [PMID: 23261473 DOI: 10.1016/j.bbrc.2012.12.051] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Accepted: 12/07/2012] [Indexed: 11/21/2022]
Abstract
Sanguinarine is a natural plant extract that has been supplemented in a number of gingival health products to suppress the growth of dental plaque. However, whether sanguinarine has any effect on teeth and alveolar bone health is still unclear. In this study, we demonstrated for the first time that sanguinarine could suppress osteoclastic bone resorption and osteoclast formation in a dose-dependent manner. Sanguinarine diminished the expression of osteoclast marker genes, including TRAP, cathepsin K, calcitonin receptor, DC-STAMP, V-ATPase d2, NFATc1 and c-fos. Further investigation revealed that sanguinarine attenuated RANKL-mediated IκBα phosphorylation and degradation, leading to the impairment of NF-κB signaling pathway during osteoclast differentiation. In addition, sanguinarine also affected the ERK signaling pathway by inhibiting RANKL-induced ERK phosphorylation. Collectively, this study suggested that sanguinarine has protective effects on teeth and alveolar bone health.
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Abstract
OBJECTIVES Urinary tract infections (UTIs), commonly caused by uropathogenic Escherichia coli (UPEC), confer significant morbidity among postmenopausal women. Glycosaminoglycans (GAGs) comprise the first line of defense at the bladder's luminal surface. Our objective was to use a murine model of menopause to determine whether estrogen status affects the GAG layer in response to UPEC infection. METHODS Adult female mice underwent sham surgery (SHAM, n = 18) or oophorectomy (OVX, n = 66) to establish a murine model of menopause. A subset of oophorectomized mice underwent hormone therapy (HT, n = 33) with 17β-estradiol. Mice were inoculated with UPEC and killed at various time points; bladders were collected and GAG layer thickness was assessed in multiple bladder sections. Sixteen measurements were made per bladder. A repeated-measures 2-way analysis of variance was performed to determine the effect of time after infection and hormonal condition on GAG thickness. We also investigated the molecular underpinnings of GAG biosynthesis in response to alterations in estrogen status and infection. RESULTS We did not observe significant difference of GAG thickness among the 3 hormonal conditions; however, the time course of GAG thickness was significantly different (P < 0.05). The OVX mice demonstrated significantly greater thickness at 72 hours after infection (P = 0.0001), and this effect was shifted earlier (24 hours after infection) on the addition of HT (P = 0.001). At 2 to 4 weeks after infection, GAG thickness among all cohorts was not significantly different from baseline. In addition, quantitative reverse transcription-polymerase chain reaction analysis revealed that GAG biosynthesis is altered by estrogen status at basal level and on infection. CONCLUSIONS The GAG layer is dynamically altered during the course of UTI. Our data show that HT positively regulates GAG layer thickness over time, as well as the composition of the GAGs. In addition, the GAG sulfation status can be influenced by estrogen levels in response to UPEC infection. The protective effects of the GAG layer in UTI may represent pharmacologic targets for the treatment and prevention of postmenopausal UTI.
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Yamaguchi M, Weitzmann MN. The bone anabolic carotenoid p-hydroxycinnamic acid promotes osteoblast mineralization and suppresses osteoclast differentiation by antagonizing NF-κB activation. Int J Mol Med 2012; 30:708-12. [PMID: 22751682 DOI: 10.3892/ijmm.2012.1043] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 05/25/2012] [Indexed: 11/06/2022] Open
Abstract
Numerous plant derived nutritional factors including p-hydroxycinnamic acid (HCA), a member of the carotenoid family, have long been held to possess bone protective properties. Studies in animals have provided a mechanistic basis for these observations by demonstrating the capacity of HCA to promote bone formation and suppress bone resorption in vivo. However, the molecular mechanism by which HCA achieves these effects remains unclear. We have demonstrated that a centralized mechanism by which several other nutritional factors achieve similar effects is through modulation of the nuclear factor-κB (NF-κB) signal transduction pathway. NF-κB activation is essential for osteoclast formation and resorption but potently antagonizes osteoblast differentiation and mineralization. In this study we demonstrate that HCA does indeed antagonize the activation of NF-κB by the key osteoclastogenic cytokine receptor activator of NF-κB (RANKL) in RAW264.7 osteoclast precursors, suppressing their differentiation into osteoclasts. Furthermore, HCA augmented the in vitro differentiation of MC3T3 preosteoblastic cells into mineralizing osteoblasts and relieved the inhibitory action of tumor necrosis factor-α (TNF-α)-induced NF-κB signaling on transforming growth factor-β (TGF-β)- or bone morphogenetic protein-2 (BMP-2)-induced Smad activation, an important pathway in osteoblast commitment and differentiation. Our data provide a mechanism to explain the dual pro-anabolic and anti-catabolic activities of HCA.
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Affiliation(s)
- Masayoshi Yamaguchi
- Division of Endocrinology and Metabolism and Lipids, Emory University School of Medicine, Atlanta, GA 30322, USA.
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43
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Xing D, Oparil S, Yu H, Gong K, Feng W, Black J, Chen YF, Nozell S. Estrogen modulates NFκB signaling by enhancing IκBα levels and blocking p65 binding at the promoters of inflammatory genes via estrogen receptor-β. PLoS One 2012; 7:e36890. [PMID: 22723832 PMCID: PMC3378567 DOI: 10.1371/journal.pone.0036890] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Accepted: 04/11/2012] [Indexed: 01/01/2023] Open
Abstract
Background NFκB signaling is critical for expression of genes involved in the vascular injury response. We have shown that estrogen (17β-estradiol, E2) inhibits expression of these genes in an estrogen receptor (ER)-dependent manner in injured rat carotid arteries and in tumor necrosis factor (TNF)-α treated rat aortic smooth muscle cells (RASMCs). This study tested whether E2 inhibits NFκB signaling in RASMCs and defined the mechanisms. Methodology/Principal Findings TNF-α treated RASMCs demonstrated rapid degradation of IκBα (10–30 min), followed by dramatic increases in IκBα mRNA and protein synthesis (40–60 min). E2 enhanced TNF-α induced IκBα synthesis without affecting IκBα degradation. Chromatin immunoprecipitation (ChIP) assays revealed that E2 pretreatment both enhanced TNF-α induced binding of NFκB p65 to the IκBα promoter and suppressed TNF-α induced binding of NFκB p65 to and reduced the levels of acetylated histone 3 at promoters of monocyte chemotactic protein (MCP)-1 and cytokine-induced neutrophil chemoattractant (CINC)-2β genes. ChIP analyses also demonstrated that ERβ can be recruited to the promoters of MCP-1 and CINC-2β during co-treatment with TNF-α and E2. Conclusions These data demonstrate that E2 inhibits inflammation in RASMCs by two distinct mechanisms: promoting new synthesis of IκBα, thus accelerating a negative feedback loop in NFκB signaling, and directly inhibiting binding of NFκB to the promoters of inflammatory genes. This first demonstration of multifaceted modulation of NFκB signaling by E2 may represent a novel mechanism by which E2 protects the vasculature against inflammatory injury.
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Affiliation(s)
- Dongqi Xing
- Vascular Biology and Hypertension Program, Division of Cardiovascular Disease, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA.
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Otero JE, Chen T, Zhang K, Abu-Amer Y. Constitutively active canonical NF-κB pathway induces severe bone loss in mice. PLoS One 2012; 7:e38694. [PMID: 22685599 PMCID: PMC3369901 DOI: 10.1371/journal.pone.0038694] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Accepted: 05/14/2012] [Indexed: 12/23/2022] Open
Abstract
Physiologic osteoclastogenesis entails activation of multiple signal transduction pathways distal to the cell membrane receptor RANK. However, atypical osteoclastogenesis driven by pro-inflammatory stimuli has been described. We have reported recently a novel mechanism whereby endogenous mutational activation of the classical NF-κB pathway is sufficient to induce RANKL/RANK-independent osteoclastogenesis. Here we investigate the physiologic relevance of this phenomenon in vivo. Using a knock-in approach, the active form of IKK2, namely IKK2SSEE, was introduced into the myeloid lineage with the aid of CD11b-cre mice. Phenotypic assessment revealed that expression of IKK2SSEE in the myeloid compartment induced significant bone loss in vivo. This observation was supported by a dramatic increase in the number and size of osteoclasts in trabecular regions, elevated levels of circulating TRACP-5b, and reduced bone volume. Mechanistically, we observed that IKK2SSEE induced high expression of not only p65 but also p52 and RelB; the latter two molecules are considered exclusive members of the alternative NF-κB pathway. Intriguingly, RelB and P52 were both required to mediate the osteoclastogenic effect of IKK2SSEE and co-expression of these two proteins was sufficient to recapitulate osteoclastogenesis in the absence of RANKL or IKK2SSEE. Furthermore, we found that NF-κB2/p100 is a potent inhibitor of IKK2SSEE-induced osteoclastogenesis. Deletion of p52 enabled more robust osteoclast formation by the active kinase. In summary, molecular activation of IKK2 may play a role in conditions of pathologic bone destruction, which may be refractory to therapeutic interventions targeting the proximal RANKL/RANK signal.
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Affiliation(s)
- Jesse E. Otero
- Department of Orthopedic Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa, United States of America
| | - Tim Chen
- Department of Orthopedic Surgery and Cell Biology and Physiology, Washington University School of Medicine, Saint Louis, Missouri, United States of America
| | - Kaihua Zhang
- Department of Orthopedic Surgery and Cell Biology and Physiology, Washington University School of Medicine, Saint Louis, Missouri, United States of America
| | - Yousef Abu-Amer
- Department of Orthopedic Surgery and Cell Biology and Physiology, Washington University School of Medicine, Saint Louis, Missouri, United States of America
- * E-mail:
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45
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Sung B, Oyajobi B, Aggarwal BB. Plumbagin inhibits osteoclastogenesis and reduces human breast cancer-induced osteolytic bone metastasis in mice through suppression of RANKL signaling. Mol Cancer Ther 2011; 11:350-9. [PMID: 22090419 DOI: 10.1158/1535-7163.mct-11-0731] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Bone loss is one of the major complications of advanced cancers such as breast cancer, prostate cancer, and multiple myeloma; agents that can suppress this bone loss have therapeutic potential. Extensive research within the last decade has revealed that RANKL, a member of the tumor necrosis factor superfamily, plays a major role in cancer-associated bone resorption and thus is a therapeutic target. We investigated the potential of vitamin K3 analogue plumbagin (derived from Chitrak, an Ayurvedic medicinal plant) to modulate RANKL signaling, osteoclastogenesis, and breast cancer-induced osteolysis. Plumbagin suppressed RANKL-induced NF-κB activation in mouse monocytes, an osteoclast precursor cell, through sequential inhibition of activation of IκBα kinase, IκBα phosphorylation, and IκBα degradation. Plumbagin also suppressed differentiation of these cells into osteoclasts induced either by RANKL or by human breast cancer or human multiple myeloma cells. When examined for its ability to prevent human breast cancer-induced bone loss in animals, plumbagin (2 mg/kg body weight) administered via the intraperitoneal route significantly decreased osteolytic lesions, resulting in preservation of bone volume in nude mice bearing human breast tumors. Overall, our results indicate that plumbagin, a vitamin K analogue, is a potent inhibitor of osteoclastogenesis induced by tumor cells and of breast cancer-induced osteolytic metastasis through suppression of RANKL signaling.
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Affiliation(s)
- Bokyung Sung
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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46
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Beck GR, Ha SW, Camalier CE, Yamaguchi M, Li Y, Lee JK, Weitzmann MN. Bioactive silica-based nanoparticles stimulate bone-forming osteoblasts, suppress bone-resorbing osteoclasts, and enhance bone mineral density in vivo. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2011; 8:793-803. [PMID: 22100753 DOI: 10.1016/j.nano.2011.11.003] [Citation(s) in RCA: 165] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Revised: 08/29/2011] [Accepted: 11/03/2011] [Indexed: 12/25/2022]
Abstract
Bone is a dynamic tissue that undergoes renewal throughout life in a process whereby osteoclasts resorb worn bone and osteoblasts synthesize new bone. Imbalances in bone turnover lead to bone loss and development of osteoporosis and ultimately fracture, a debilitating condition with high morbidity and mortality. Silica is a ubiquitous biocontaminant that is considered to have high biocompatibility. The authors report that silica nanoparticles (NPs) mediate potent inhibitory effects on osteoclasts and stimulatory effects on osteoblasts in vitro. The mechanism of bioactivity is a consequence of an intrinsic capacity to antagonize activation of NF-κB, a signal transduction pathway required for osteoclastic bone resorption but inhibitory to osteoblastic bone formation. We further demonstrate that silica NPs promote a significant enhancement of bone mineral density (BMD) in mice in vivo, providing a proof of principle for the potential application of silica NPs as a pharmacological agent to enhance BMD and protect against bone fracture.
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Affiliation(s)
- George R Beck
- The Division of Endocrinology, Metabolism and Lipids, Emory University School of Medicine, Atlanta, Georgia 30322-0001, USA
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Thomas MV, Puleo DA. Infection, inflammation, and bone regeneration: a paradoxical relationship. J Dent Res 2011; 90:1052-61. [PMID: 21248364 PMCID: PMC3169879 DOI: 10.1177/0022034510393967] [Citation(s) in RCA: 217] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2010] [Revised: 11/17/2010] [Accepted: 11/18/2010] [Indexed: 02/06/2023] Open
Abstract
Various strategies have been developed to promote bone regeneration in the craniofacial region. Most of these interventions utilize implantable materials or devices. Infections resulting from colonization of these implants may result in local tissue destruction in a manner analogous to periodontitis. This destruction is mediated via the expression of various inflammatory mediators and tissue-destructive enzymes. Given the well-documented association among microbial biofilms, inflammatory mediators, and tissue destruction, it seems reasonable to assume that inflammation may interfere with bone healing and regeneration. Paradoxically, recent evidence also suggests that the presence of certain pro-inflammatory mediators is actually required for bone healing. Bone injury (e.g., subsequent to a fracture or surgical intervention) is followed by a choreographed cascade of events, some of which are dependent upon the presence of pro-inflammatory mediators. If inflammation resolves promptly, then proper bone healing may occur. However, if inflammation persists (which might occur in the presence of an infected implant or graft material), then the continued inflammatory response may result in suboptimal bone formation. Thus, the effect of a given mediator is dependent upon the temporal context in which it is expressed. Better understanding of this temporal sequence may be used to optimize regenerative outcomes.
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Affiliation(s)
- M V Thomas
- Department of Oral Health Practice, University of Kentucky College of Dentistry, 800 Rose Street, Room D-124, Lexington, KY 40536-0297, USA.
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48
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Yamaguchi M, Neale Weitzmann M. The intact strontium ranelate complex stimulates osteoblastogenesis and suppresses osteoclastogenesis by antagonizing NF-κB activation. Mol Cell Biochem 2011; 359:399-407. [DOI: 10.1007/s11010-011-1034-8] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2011] [Accepted: 08/05/2011] [Indexed: 10/17/2022]
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Yamaguchi M, Weitzmann MN, Murata T. Exogenous regucalcin stimulates osteoclastogenesis and suppresses osteoblastogenesis through NF-κB activation. Mol Cell Biochem 2011; 359:193-203. [PMID: 21842421 DOI: 10.1007/s11010-011-1014-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Accepted: 07/27/2011] [Indexed: 10/17/2022]
Abstract
Regucalcin plays a pivotal role in regulating intracellular calcium homeostasis and consequently has a profound effect on multiple intracellular signal transduction pathways. The regucalcin transgenic rat displays pronounced bone loss, and bone marrow from these animals exhibits significantly elevated osteoclast formation. Consistent with these effects exogenous regucalcin promotes osteoclastogenesis in mouse bone marrow cultures, but interestingly regucalcin suppresses the differentiation and mineralization of MC3T3 osteoblast precursors. However, the molecular mechanisms involved are presently unclear. As the nuclear factor-kappa B (NF-κB) signal transduction pathway is critical to osteoclastogenesis but inhibitory of osteoblastogenesis, we hypothesized that regucalcin may promote osteoclastogenesis and suppress osteoblastogenesis upregulating NF-κB signal transduction. In this study, we examined the effect of regucalcin on receptor activator of NF-κB (RANK) ligand (RANKL) -induced osteoclast formation using the RAW264.7 monocytic cell line and osteoblast formation using the pre-osteoblastic cell line MC3T3. As expected, culture with exogenous regucalcin was found to enhance RANKL-induced osteoclastogenesis. Consistent with this effect regucalcin increased basal and RANKL-induced NF-κB activation as assessed by NF-κB luciferase assay. The capacity of regucalcin to augment RANKL-induced NF-κB activity was inhibited by menaquinone-7, a potent NF-κB antagonist, while the Erk inhibitor PD98059 and staurosporine had no effect, demonstrating a specific effect on NF-κB signaling. By contrast, regucalcin inhibited mineralization of MC3T3 cells and enhanced tumor necrosis factor-α (TNFα)-induced NF-κB activation. As with NF-κB induction in osteoclasts, NF-κB activation was abolished by addition of the NF-κB antagonist menaquinone-7, but not by PD98059 and staurosporine. Transforming growth factor-β (TGFβ) and bone morphogenic protein-2 (BMP2) are potent early commitment and late osteoblast differentiation factors, respectively, and both mediate their actions through the Smad-signal transduction pathway, a system that is extremely sensitive to and inhibited by TNFα-induced NF-κB. We consequently examined the effect of regucalcin on TGFβ and BMP2-induced Smad activation in the presence and absence of TNFα. While regucalcin had no effect on basal Smad activation by TGFβ and BMP2, it enhanced the suppressive effect of TNFα on both TGFβ- and BMP2-induced Smad activations. Taken together, present data suggest that regucalcin may induce bone loss in vivo by promoting osteoclasts and simultaneously suppressing osteoblasts through amplification of basal and/or cytokine-induced NF-κB activation. Regucalcin may have a role as a modulator in NF-κB activation.
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Affiliation(s)
- Masayoshi Yamaguchi
- Department of Medicine, Division of Endocrinology and Metabolism and Lipids, Emory University School of Medicine, 101 Woodruff Circle, 1329 WMRB, Atlanta, GA 30322, USA.
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50
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Ang ESM, Yang X, Chen H, Liu Q, Zheng MH, Xu J. Naringin abrogates osteoclastogenesis and bone resorption via the inhibition of RANKL-induced NF-κB and ERK activation. FEBS Lett 2011; 585:2755-62. [PMID: 21835177 DOI: 10.1016/j.febslet.2011.07.046] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Revised: 07/28/2011] [Accepted: 07/28/2011] [Indexed: 11/30/2022]
Abstract
Osteolytic bone diseases including osteoporosis are commonly accompanied with enhanced osteoclast formation and bone resorption. Naringin, a natural occurring flavonoid has been found to protect against retinoic acid-induced osteoporosis and improve bone quality in rats. Here, we showed that naringin perturbs osteoclast formation and bone resorption by inhibiting RANK-mediated NF-κB and ERK signaling. Naringin suppressed gene expression of key osteoclast marker genes. Naringin was found to inhibit RANKL-induced activation of NF-κB by suppressing RANKL-mediated IκB-α degradation. In addition, naringin inhibited RANKL-induced phosphorylation of ERK. This study identifies naringin as an inhibitor for osteoclast formation and bone resorption, and provides evidence that natural compounds such as naringin might be beneficial as an alternative medicine for the prevention and treatment of osteolysis.
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Affiliation(s)
- Estabelle S M Ang
- School of Dentistry, Oral Biology Research Laboratory, The University of Western Australia, Nedlands, WA 6009, Australia
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