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Hughes SD, Ketheesan N, Haleagrahara N. The therapeutic potential of plant flavonoids on rheumatoid arthritis. Crit Rev Food Sci Nutr 2017; 57:3601-3613. [DOI: 10.1080/10408398.2016.1246413] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Samuel D. Hughes
- Biomedicine, College of Public Health, Medical & Veterinary Sciences, James Cook University, Townsville, Australia
| | - Natkunam Ketheesan
- Biomedicine, College of Public Health, Medical & Veterinary Sciences, James Cook University, Townsville, Australia
- Australian Institute of Tropical Health and Medicine (AITHM), James Cook University, Townsville, Australia
| | - Nagaraja Haleagrahara
- Biomedicine, College of Public Health, Medical & Veterinary Sciences, James Cook University, Townsville, Australia
- Australian Institute of Tropical Health and Medicine (AITHM), James Cook University, Townsville, Australia
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Abstract
Bone health in children with rheumatic conditions may be compromised due to several factors related to the inflammatory disease state, delayed puberty, altered life style, including decreased physical activities, sun avoidance, suboptimal calcium and vitamin D intake, and medical treatments, mainly glucocorticoids and possibly some disease-modifying anti-rheumatic drugs. Low bone density or even fragility fractures could be asymptomatic; therefore, children with diseases of high inflammatory load, such as systemic onset juvenile idiopathic arthritis, juvenile dermatomyositis, systemic lupus erythematosus, and those requiring chronic glucocorticoids may benefit from routine screening of bone health. Most commonly used assessment tools are laboratory testing including serum 25-OH-vitamin D measurement and bone mineral density measurement by a variety of methods, dual-energy X-ray absorptiometry as the most widely used. Early disease control, use of steroid-sparing medications such as disease-modifying anti-rheumatic drugs and biologics, supplemental vitamin D and calcium, and promotion of weight-bearing physical activities can help optimize bone health. Additional treatment options for osteoporosis such as bisphosphonates are still controversial in children with chronic rheumatic diseases, especially those with decreased bone density without fragility fractures. This article reviews common risk factors leading to compromised bone health in children with chronic rheumatic diseases and discusses the general approach to prevention and treatment of bone fragility.
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Ma A, Yang Y, Wang Q, Wang Y, Wen J, Zhang Y. Anti‑inflammatory effects of oxymatrine on rheumatoid arthritis in rats via regulating the imbalance between Treg and Th17 cells. Mol Med Rep 2017; 15:3615-3622. [PMID: 28440447 PMCID: PMC5436225 DOI: 10.3892/mmr.2017.6484] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Accepted: 02/24/2017] [Indexed: 12/20/2022] Open
Abstract
Oxymatrine (OMT), a monosomic alkaloid extracted from the Chinese herb, Sophora flavescens Ait, has long been used as a traditional Chinese medicine for the treatment of inflammatory diseases. The aim of the present study was to investigate the potential anti‑inflammatory effect of OMT, and its modulation on imbalance between regulatory T (Treg) cells and T helper (Th) 17 cells in rats with collagen‑induced arthritis (CIA). Sprague‑Dawley rats were immunized with type II collagen and following a second collagen immunization, the rats were treated with OMT or dexamethasone (DXM) intraperitoneally once a day for 43 days. Paw swelling, arthritic score and joint histopathology were evaluated. The Treg/Th17‑mediated autoreactive response was assessed by determining serum levels of inflammatory response cytokines, including tumor necrosis factor (TNF)‑α and interleukin (IL)‑17, using an enzyme‑linked immunosorbent assay. The mRNA levels of forkhead box P3 (FOXP3) and retinoic acid‑related orphan receptor (ROR)γt in spleen cells stimulated with type II collagen were determined using reverse transcription‑quantitative polymerase chain reaction analysis. In addition, the protein expression levels of FOXP3 and RORγt were measured using western blot analysis. The results showed that OMT treatment significantly reduced the severity of CIA, markedly abrogating paw swelling, arthritic scores and synovial hyperplasia, and the increased loss in body weight. OMT significantly reduced the production of TNF‑α and IL‑17A, upregulated FOXP3 and downregulated RORγt in rats with CIA. In conclusion, the present study demonstrated that OMT exhibited a protective effect on rheumatoid arthritis (RA) through the inhibition of inflammation and regulation of Treg/Th17 in the CIA rats, suggesting that OMT may be used as an immune suppressive and cartilage protective medicine in human RA.
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Affiliation(s)
- Ailing Ma
- Department of Pathology, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Yongya Yang
- Department of Pathogen Biology and Immunology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Qiuyang Wang
- Department of Laboratory, the People's Hospital of Yan'an, Yan'an, Shanxi 71600, P.R. China
| | - Yin Wang
- Ningxia Key Laboratory of Cerebrocranial Diseases, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Jing Wen
- Department of Pathogen Biology and Immunology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Yanli Zhang
- Department of Pathogen Biology and Immunology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
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Williams B, Tsangari E, Stansborough R, Marino V, Cantley M, Dharmapatni A, Gibson R, Perilli E, Crotti T. Mixed effects of caffeic acid phenethyl ester (CAPE) on joint inflammation, bone loss and gastrointestinal inflammation in a murine model of collagen antibody-induced arthritis. Inflammopharmacology 2017; 25:55-68. [PMID: 28044215 DOI: 10.1007/s10787-016-0306-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 12/16/2016] [Indexed: 12/29/2022]
Abstract
OBJECTIVE To investigate the effect of caffeic acid phenethyl ester (CAPE) on local and systemic inflammation and bone loss in collagen antibody-induced arthritis (CAIA) mice. METHODS Four groups of mice (n = 8 per group) were allocated; control, CAPE (1 mg/kg), CAIA and CAIA + CAPE (1 mg/kg). Local inflammation and bone loss were evaluated using clinical paw scores, in vivo micro-computed tomography (micro-CT), histological assessment and tartrate-resistant acid phosphatase (TRAP) staining. Serum levels of C-reactive protein (CRP) and C-terminal telopeptide (CTX-1) were measured by ELISA. Jejunum and colon sections were evaluated histopathologically for damage and toxicity. RESULTS Greater paw scores and percentage change in paw volume were observed in CAIA + CAPE compared to the control groups (p < 0.05). Bone volume over time remained unchanged (p = 0.94) and the number of multinucleated TRAP-positive cells was greatest in CAIA + CAPE mice (p < 0.05). CRP and CTX-1 levels did not differ between groups. CAIA + CAPE mice exhibited lower colon toxicity scores and a reduced percentage of cavitated goblet cells in the colon crypts compared with CAIA mice (p = 0.026 and p = 0.003, respectively). Histopathology in the jejunum was not altered. CONCLUSION CAPE did not reduce paw inflammation or bone loss in CAIA mice. CAPE reduced histopathological changes in the colon of CAIA mice.
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Affiliation(s)
- Bonnie Williams
- Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia.
| | - Eleni Tsangari
- Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
| | - Romany Stansborough
- Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
| | - Victor Marino
- School of Dentistry, The University of Adelaide, Adelaide, SA, Australia
| | - Melissa Cantley
- Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
| | - Anak Dharmapatni
- Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
| | - Rachel Gibson
- Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia.,Division of Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Egon Perilli
- School of Computer Science, Engineering and Mathematics, Flinders University, Adelaide, SA, Australia
| | - Tania Crotti
- Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
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Wang JY, Yuan Y, Chen XJ, Fu SG, Zhang L, Hong YL, You SF, Yang YQ. Extract from Eucommia ulmoides Oliv. ameliorates arthritis via regulation of inflammation, synoviocyte proliferation and osteoclastogenesis in vitro and in vivo. JOURNAL OF ETHNOPHARMACOLOGY 2016; 194:609-616. [PMID: 27743778 DOI: 10.1016/j.jep.2016.10.038] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 09/21/2016] [Accepted: 10/09/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Eucommia ulmoides Oliv., a valuable Chinese herb, has shown a variety of health benefits. Despite the widespread clinical use of this herb to treat rheumatoid arthritis (RA) in Traditional Chinese Medicine (TCM), very few studies have described its anti-pathological effects or mechanism in RA. The present study investigated the mechanism of Eucommia ulmoides Oliv. in an experimental collagen-induced arthritis (CIA) rat model. MATERIALS AND METHODS The effects of four different Eucommia ulmoides Oliv. extracts on the proliferation of rheumatoid arthritis fibroblast-like synoviocytes (RA-FLS) were screened in an MTT assay, and apoptotic effects were detected by flow cytometry. Among the extracts, the 70% ethanol extract (EU70) presented the best inhibition and was further investigated for its curative effect in CIA rats. Foot swelling was detected, and the arthritis index (AI) was scored. Pathological improvement was assessed by haematoxylin and eosin (H&E) staining of joint tissues. The mechanistic effects of EU70 were investigated as follows: anti-inflammatory effects in Th17-positive cells by flow cytometry; serum levels of inflammatory cytokines by ELISA; TNFα and IL-1β expression by immunohistochemistry (IHC); and anti-osteoclastogenesis by QPCR detection of RANKL and OPG mRNA. RESULTS Compared with vehicle treatment in CIA model rats, EU70 significantly ameliorated foot swelling, decreased AI in vivo and reduced inflammatory cell infiltration and synoviocyte proliferation. EU70 decreased the number of Th17-positive cells in the spleen and the serum levels of cytokines, including IL-17, IL-1β and TNFα, and upregulated the serum levels of IL-10; these results indicated the anti-inflammatory effect of EU70. Moreover, EU70 effectively suppressed TNFα and IL-1β expression in the joint tissues and resulted in the downregulation of RANKL mRNA and the upregulation of OPG mRNA. These results revealed the possible preventive role of EU70 against bone destruction. CONCLUSION For the first time, these mechanisms and pathological improvements support the clinical use of Eucommia ulmoides Oliv. in treating RA. The findings indicated that the 70% ethanol extract of Eucommia ulmoides Oliv. could relieve RA symptoms by (1) suppressing the proliferation of synoviocytes, (2) reducing the number of Th17-positive cells and downregulating serum IL-17 expression, (3) increasing the anti-inflammatory effects of IL-10, (4) inhibiting the serum and tissue levels of key pro-inflammatory cytokines, TNFα and IL-1β, and (5) reducing the degradation of cartilage and bone.
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Affiliation(s)
- Jian-Ying Wang
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong District, Shanghai, China
| | - Ying Yuan
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong District, Shanghai, China
| | - Xiao-Jun Chen
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong District, Shanghai, China
| | - Sheng-Guang Fu
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong District, Shanghai, China
| | - Lei Zhang
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong District, Shanghai, China
| | - Yan-Long Hong
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong District, Shanghai, China
| | - Sheng-Fu You
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong District, Shanghai, China
| | - Yong-Qing Yang
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong District, Shanghai, China.
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56
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Teng YTA. Protective and Destructive Immunity in the Periodontium: Part 2—T-cell-mediated Immunity in the Periodontium. J Dent Res 2016; 85:209-19. [PMID: 16498066 DOI: 10.1177/154405910608500302] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Based on the results of recent research in the field and Part 1 of this article (in this issue), the present paper will discuss the protective and destructive aspects of the T-cell-mediated adaptive immunity associated with the bacterial virulent factors or antigenic determinants during periodontal pathogenesis. Attention will be focused on: (i) osteoimmunology and periodontal disease; (ii) some molecular techniques developed and applied to identify critical microbial virulence factors or antigens associated with host immunity (with Actinobacillus actinomycetemcomitans and Porphyromonas gingivalis as the model species); and (iii) summarizing the identified virulence factors/antigens associated with periodontal immunity. Thus, further understanding of the molecular mechanisms of the host’s T-cell-mediated immune responses and the critical microbial antigens related to disease pathogenesis will facilitate the development of novel therapeutics or protocols for future periodontal treatments. Abbreviations used in the paper are as follows: A. actinomycetemcomitans ( Aa), Actinobacillus actinomycetemcomitans; Ab, antibody; DC, dendritic cells; mAb, monoclonal antibody; pAb, polyclonal antibody; OC, osteoclast; PAMP, pathogen-associated molecular patterns; P. gingivalis ( Pg), Porphyromonas gingivalis; RANK, receptor activator of NF-κB; RANKL, receptor activator of NF-κB ligand; OPG, osteoprotegerin; TCR, T-cell-receptors; TLR, Toll-like receptors.
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Affiliation(s)
- Y-T A Teng
- Laboratory of Molecular Microbial Immunity, Eastman Department of Dentistry, Eastman Dental Center, Box-683, 625 Elmwood Ave., Rochester, NY 14620, USA.
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57
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Lerner UH. Inflammation-induced Bone Remodeling in Periodontal Disease and the Influence of Post-menopausal Osteoporosis. J Dent Res 2016; 85:596-607. [PMID: 16798858 DOI: 10.1177/154405910608500704] [Citation(s) in RCA: 184] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
During physiological conditions, the skeleton is remodeled in so-called bone multi-cellular units. Such units have been estimated to exist at 1–2 x 106 sites in the adult skeleton. The number and activities of these units are regulated by a variety of hormones and cytokines. In post-menopausal osteoporosis, lack of estrogen leads to increased numbers of bone multi-cellular units and to uncoupling of bone formation and bone resorption, resulting in too little bone laid down by osteoblasts compared with the amount of bone resorbed by osteoclasts. Inflammatory processes in the vicinity of the skeleton, e.g., marginal and apical periodontitis, will affect the remodeling of the nearby bone tissue in such a way that, in most patients, the amount of bone resorbed exceeds that being formed, resulting in net bone loss (inflammation-induced osteolysis). In some patients, however, inflammation-induced bone formation exceeds resorption, and a sclerotic lesion will develop. The cellular and molecular pathogenetic mechanisms in inflammation-induced osteolysis and sclerosis are discussed in the present review. The cytokines believed to be involved in inflammation-induced remodeling are very similar to those suggested to play crucial roles in post-menopausal osteoporosis. In patients with periodontal disease and concomitant post-menopausal osteoporosis, the possibility exists that the lack of estrogen influences the activities of bone cells and immune cells in such a way that the progression of alveolar bone loss will be enhanced. In the present paper, the evidence for and against this hypothesis is presented.
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Affiliation(s)
- U H Lerner
- Department of Oral Cell Biology, Umeå University, Umeå SE-901 87, Sweden.
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58
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Wakita T, Mogi M, Kurita K, Kuzushima M, Togari A. Increase in RANKL: OPG Ratio in Synovia of Patients with Temporomandibular Joint Disorder. J Dent Res 2016; 85:627-32. [PMID: 16798863 DOI: 10.1177/154405910608500709] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Although a recent study suggested the involvement of RANKL and osteoprotegerin (OPG) in the pathogenesis of bone-destructive disease, no study has focused on the RANKL:OPG ratio in the synovial fluid of patients with temporomandibular joint (TMJ) disorder. This communication reports on the concentrations of RANKL and OPG in synovial fluid from TMJ patients and healthy control individuals. In contrast to an unchanged concentration of RANKL, a strong decrease in the concentration of OPG was detected in the synovial fluid from patients with TMJ internal derangement. Treatment with the synovial fluid of osteoarthritis (OA) patients resulted in the high production of osteoclast-like cells from blood mononuclear cells in vitro, as well as in pit formation in dentin slices. The addition of anti-RANKL IgG or OPG attenuated OA-synovial fluid-induced osteoclast formation, suggesting that the increase in the RANKL:OPG ratio in the microenvironment of the joint has the potential to induce osteoclastogenesis in TMJ osteoarthritis.
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Affiliation(s)
- T Wakita
- Department of Pharmacology, School of Dentistry, Aichi-Gakuin University, Nagoya 464-8650, Japan
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Matsuda S, Movila A, Suzuki M, Kajiya M, Wisitrasameewong W, Kayal R, Hirshfeld J, Al-Dharrab A, Savitri IJ, Mira A, Kurihara H, Taubman MA, Kawai T. A novel method of sampling gingival crevicular fluid from a mouse model of periodontitis. J Immunol Methods 2016; 438:21-25. [PMID: 27589925 PMCID: PMC5370161 DOI: 10.1016/j.jim.2016.08.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Revised: 08/23/2016] [Accepted: 08/29/2016] [Indexed: 12/29/2022]
Abstract
Using a mouse model of silk ligature-induced periodontal disease (PD), we report a novel method of sampling mouse gingival crevicular fluid (GCF) to evaluate the time-dependent secretion patterns of bone resorption-related cytokines. GCF is a serum transudate containing host-derived biomarkers which can represent cellular response in the periodontium. As such, human clinical evaluations of PD status rely on sampling this critical secretion. At the same time, a method of sampling GCF from mice is absent, hindering the translational value of mouse models of PD. Therefore, we herein report a novel method of sampling GCF from a mouse model of periodontitis, involving a series of easy steps. First, the original ligature used for induction of PD was removed, and a fresh ligature for sampling GCF was placed in the gingival crevice for 10min. Immediately afterwards, the volume of GCF collected in the sampling ligature was measured using a high precision weighing balance. The sampling ligature containing GCF was then immersed in a solution of PBS-Tween 20 and subjected to ELISA. This enabled us to monitor the volume of GCF and detect time-dependent changes in the expression of such cytokines as IL-1b, TNF-α, IL-6, RANKL, and OPG associated with the levels of alveolar bone loss, as reflected in GCF collected from a mouse model of PD. Therefore, this novel GCF sampling method can be used to measure various cytokines in GCF relative to the dynamic changes in periodontal bone loss induced in a mouse model of PD.
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Affiliation(s)
- Shinji Matsuda
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA; Department of Periodontology, Hiroshima University Faculty of Dentistry, Hiroshima, Japan
| | - Alexandru Movila
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA
| | - Maiko Suzuki
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA; College of Dentistry, The Ohio State University, Columbus, OH, USA
| | - Mikihito Kajiya
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA; Department of Periodontology, Hiroshima University Faculty of Dentistry, Hiroshima, Japan
| | - Wichaya Wisitrasameewong
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA; Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Harvard University, Boston, MA, USA; Department of Periodontology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Rayyan Kayal
- King Abdulaziz University, Faculty of Dentistry, Jeddah, Saudi Arabia
| | - Josefine Hirshfeld
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA; Department of Restorative Dentistry, University of Birmingham, Birmingham, UK
| | - Ayman Al-Dharrab
- King Abdulaziz University, Faculty of Dentistry, Jeddah, Saudi Arabia
| | - Irma J Savitri
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA; Universitas Airlangga, Faculty of Dental Medicine, Department of Periodontology, Jawa Timur, Indonesia
| | - Abdulghani Mira
- King Abdulaziz University, Faculty of Dentistry, Jeddah, Saudi Arabia
| | - Hidemi Kurihara
- Department of Periodontology, Hiroshima University Faculty of Dentistry, Hiroshima, Japan
| | - Martin A Taubman
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA
| | - Toshihisa Kawai
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA; Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Harvard University, Boston, MA, USA.
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Lino AC, Dörner T, Bar-Or A, Fillatreau S. Cytokine-producing B cells: a translational view on their roles in human and mouse autoimmune diseases. Immunol Rev 2016; 269:130-44. [PMID: 26683150 DOI: 10.1111/imr.12374] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
B-cell depletion therapy has beneficial effects in autoimmune diseases. This is only partly explained by an elimination of autoantibodies. How does B-cell depletion improve disease? Here, we review preclinical studies showing that B cells can propagate autoimmune disorders through cytokine production. We also highlight clinical observations indicating the relevance of these B-cell functions in human autoimmunity. Abnormalities in B-cell cytokine production have been observed in rheumatoid arthritis, multiple sclerosis, inflammatory bowel disease, and systemic lupus erythematosus. In the first two diseases, B-cell depletion erases these abnormalities, and improves disease progression, suggesting a causative role for defective B-cell cytokine expression in disease pathogenesis. However, in the last two disorders, the pathogenic role of B cells and the effect of B-cell depletion on cytokine-producing B cells remain to be clarified. A better characterization of cytokine-expressing human B-cell subsets, and their modulation by B cell-targeted therapies might help understanding both the successes and failures of current B cell-targeted approaches. This may even lead to the development of novel strategies to deplete or amplify selectively pathogenic or protective subsets, respectively, which might be more effective than global depletion of the B-cell compartment.
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Affiliation(s)
- Andreia C Lino
- Deutsches Rheuma-Forschungszentrum, A Leibniz Institute, Berlin, Germany
| | - Thomas Dörner
- Deutsches Rheuma-Forschungszentrum, A Leibniz Institute, Berlin, Germany.,CC12, Department of Medicine/Rheumatology and Clinical Immunology, Charité University Medicine Berlin, Berlin, Germany
| | - Amit Bar-Or
- Neuroimmunology Unit, Montreal Neurological Institute, McGill University, 3801 University, Montreal, QC, Canada
| | - Simon Fillatreau
- Deutsches Rheuma-Forschungszentrum, A Leibniz Institute, Berlin, Germany.,Institut Necker-Enfants Malades (INEM), INSERM U1151-CNRS UMR 8253, Paris, France.,Faculté de Médecine, Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,Assistance Publique - Hôpitaux de Paris (AP-HP), Hôpital Necker Enfants Malades, Paris, France
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High-fat diet induced changes in lumbar vertebra of the male rat offsprings. Acta Histochem 2016; 118:711-721. [PMID: 27577321 DOI: 10.1016/j.acthis.2016.08.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/04/2016] [Accepted: 08/10/2016] [Indexed: 12/22/2022]
Abstract
In obesity, bone marrow adiposity increases and proinflammatory cytokines excretion activates RANK/RANKL/OPG system, which leads to increased bone resorption. The aim of this study was to analyze trabecular and cortical bone parameters in animals exposed to the high-fat diet in utero and after lactation. Skeletal organ of interest was the fifth lumbar vertebra, which is not exposed to biomechanical loading in rats. Further aims were to determine TNF-α and IL-6 serum concentrations, and the intensity of the TNF-α immunohistochemical staining in the bone marrow. Ten female Sprague Dawley rats, nine weeks old, were randomly divided in two groups and fed either standard laboratory chow or food rich in saturated fatty acids during five weeks, and then mated with genetically similar male subjects. After birth and lactation male offsprings from both groups were divided in four subgroups depending on the diet they were fed until twenty-two weeks of age. The highest cholesterol and triglyceride concentration were found in both groups of offsprings fed with high-fat diet. The lowest trabecular bone volume, lowest trabecular number and highest trabecular separation were found in offsprings fed with high-fat diet of mothers on standard laboratory chow. The same group of offsprings was also characterized by the highest intensity of TNF-α immunostaining in the bone marrow and the highest TNF-α serum concentration, which suggest that this proinflammatory cytokine has interfered with bone metabolism, possibly by stimulation of bone resorption, which led to inadequate trabecular bone development and bone modeling of the fifth lumbar vertebra.
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Drynda A, Ren Q, Buchhorn GH, Lohmann CH. The induction of CXCR4 expression in human osteoblast-like cells (MG63) by CoCr particles is regulated by the PLC-DAG-PKC pathway. J Biomed Mater Res B Appl Biomater 2016; 105:2326-2332. [PMID: 27504737 DOI: 10.1002/jbm.b.33770] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Revised: 06/13/2016] [Accepted: 07/26/2016] [Indexed: 01/13/2023]
Abstract
BACKGROUND Osteolysis which leads to aseptic loosening of implants is a fundamental problem in joint replacement surgery (arthroplasty) and the leading cause for implant failure and revision surgery. Metal (CoCr) particles separated from implants by wear cause osteolysis and the failure of orthopedic implants, but the molecular mechanism is not clear. The chemokine receptor CXCR4 has been shown to play a pivotal role in periprosthetic osteolysis. The aim of this study was to determine which signal transduction pathway (PLC-DAG-PKC or MAPK/ERK) induces CXCR4 expression in osteoblast-like cells (MG63) cells. METHODS MG63 and Jurkat cells were stimulated with different amounts of particles (107 , 106 , and 105 ) for different time periods (30 min to 24 h), in the presence and absence of specific inhibitors (chelerythrine for the PLC-DAG-PKC pathway and PD98059 for the MAPK/ERK pathway). The expression of CXCR4-specific mRNA was determined by real-time polymerase chain reaction (PCR), and the PKC activity was measured by Western Blot using an antibody specific for PKC-related phosphorylation. RESULTS Real-time PCR data showed that CXCR4 mRNA expression in MG63 cells induced by CoCr particles was significantly diminished by the PKC-specific inhibitor chelerythrine. This effect was not observed with the MAPK/ERK inhibitor PD98059. The involvement of PKC was also confirmed by an intensified phosphorylation pattern after stimulation with CoCr particles. In Jurkat cells, none of the inhibitors exhibited any effect. CONCLUSION The induction of CXCR4-specific mRNA expression in MG63 cells after stimulation with CoCr particles is regulated by the PLC-DAG-PKC pathway and not by the MAPK/ERK pathway. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 2326-2332, 2017.
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Affiliation(s)
- Andreas Drynda
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Qiang Ren
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | | | - Christoph H Lohmann
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
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de Molon RS, Hsu C, Bezouglaia O, Dry SM, Pirih FQ, Soundia A, Cunha FQ, Cirelli JA, Aghaloo TL, Tetradis S. Rheumatoid Arthritis Exacerbates the Severity of Osteonecrosis of the Jaws (ONJ) in Mice. A Randomized, Prospective, Controlled Animal Study. J Bone Miner Res 2016; 31:1596-607. [PMID: 26950411 PMCID: PMC4970902 DOI: 10.1002/jbmr.2827] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 03/01/2016] [Accepted: 03/02/2016] [Indexed: 12/14/2022]
Abstract
Rheumatoid arthritis (RA), an autoimmune inflammatory disorder, results in persistent synovitis with severe bone and cartilage destruction. Bisphosphonates (BPs) are often utilized in RA patients to reduce bone destruction and manage osteoporosis. However, BPs, especially at high doses, are associated with osteonecrosis of the jaw (ONJ). Here, utilizing previously published ONJ animal models, we are exploring interactions between RA and ONJ incidence and severity. DBA1/J mice were divided into four groups: control, zoledronic acid (ZA), collagen-induced arthritis (CIA), and CIA-ZA. Animals were pretreated with vehicle or ZA. Bovine collagen II emulsified in Freund's adjuvant was injected to induce arthritis (CIA) and the mandibular molar crowns were drilled to induce periapical disease. Vehicle or ZA treatment continued for 8 weeks. ONJ indices were measured by micro-CT (µCT) and histological examination of maxillae and mandibles. Arthritis development was assessed by visual scoring of paw swelling, and by µCT and histology of interphalangeal and knee joints. Maxillae and mandibles of control and CIA mice showed bone loss, periodontal ligament (PDL) space widening, lamina dura loss, and cortex thinning. ZA prevented these changes in both ZA and CIA-ZA groups. Epithelial to alveolar crest distance was increased in the control and CIA mice. This distance was preserved in ZA and CIA-ZA animals. Empty osteocytic lacunae and areas of osteonecrosis were present in ZA and CIA-ZA but more extensively in CIA-ZA animals, indicating more severe ONJ. CIA and CIA-ZA groups developed severe arthritis in the paws and knees. Interphalangeal and knee joints of CIA mice showed advanced bone destruction with cortical erosions and trabecular bone loss, and ZA treatment reduced these effects. Importantly, no osteonecrosis was noted adjacent to areas of articular inflammation in CIA-ZA mice. Our data suggest that ONJ burden was more pronounced in ZA treated CIA mice and that RA could be a risk factor for ONJ development. © 2016 American Society for Bone and Mineral Research.
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Affiliation(s)
- Rafael Scaf de Molon
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, Sao Paulo State University, Araraquara 14801–903, Brazil
| | - Chingyun Hsu
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Olga Bezouglaia
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Sarah M. Dry
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Flavia Q. Pirih
- Division of Constitutive & Regenerative Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Akrivoula Soundia
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Fernando Queiroz Cunha
- Department of Pharmacology, School of Medicine of Ribeirao Preto, Sao Paulo 14049, Brazil
| | - Joni Augusto Cirelli
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, Sao Paulo State University, Araraquara 14801–903, Brazil
| | - Tara L. Aghaloo
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Sotirios Tetradis
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA 90095, USA
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Shi L, Mao C, Wang X, Liu R, Li L, Mou X, Xu P, Li H, Xu C, Yuan G, Wang B, Zhang H. Association of chemerin levels and bone mineral density in Chinese obese postmenopausal women. Medicine (Baltimore) 2016; 95:e4583. [PMID: 27583869 PMCID: PMC5008553 DOI: 10.1097/md.0000000000004583] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Increasing evidence suggests the association between obesity and bone metabolism. However, whether excessive fat accumulation has a beneficial or adverse effect on bone health remains controversial. Chemerin is a novel adipocyte-derived hormone and a chemoattractant cytokine that regulates adipogenesis. This study was performed to investigate the associations of serum chemerin with bone mineral density (BMD) and serum pro-inflammatory cytokine levels in 543 Chinese obese postmenopausal women. BMD of the femoral neck and lumbar spine, lean mass, and fat mass were measured using dual energy X-ray absorptiometry. Anthropometric assessment and laboratory measurements were performed. The age, time after menopause, and fat mass were negatively correlated with femoral and lumbar BMD, whereas lean mass was positively correlated with aforementioned variables. Furthermore, BMD at the lumbar spine was inversely associated with serum chemerin and TNF-α levels (r = -0.155, P = 0.001; r = -0.147, P = 0.001). Multiple linear regression analyses showed that serum chemerin levels were negatively correlated with BMD at the lumbar site after controlling for the age, lean, and fat mass (β = -0.125, P = 0.001). Chronic low-grade inflammation state in obese population has an inverse effect on bone mass. Chemerin as an adipocytokine and chemoattractant negatively affects the bone mass of Chinese obese postmenopausal women. Further studies are needed to confirm the potential role of chemerin in the crosstalk between bone and fat accumulation in obese population.
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Affiliation(s)
- Liang Shi
- Department of Nuclear Medicine, Affiliated Hospital of Jiangsu University
| | - Chaoming Mao
- Department of Nuclear Medicine, Affiliated Hospital of Jiangsu University
| | - Xuefeng Wang
- Department of Nuclear Medicine, Affiliated Hospital of Jiangsu University
| | - Rencong Liu
- Department of Nuclear Medicine, Nanjing First Hospital
| | - Lin Li
- Department of Nuclear Medicine, Affiliated Hospital of Jiangsu University
| | - Xiao Mou
- Department of Nuclear Medicine, Affiliated Hospital of Jiangsu University
| | - Ping Xu
- Department of Endocrine and Metabolic Diseases, Affiliated Hospital of Jiangsu University
| | - Hongli Li
- Department of Laboratory Medicine, Nantong Tumor Hospital
| | - Chengcheng Xu
- Department of Nuclear Medicine, Affiliated Hospital of Jiangsu University
| | - Guoyue Yuan
- Department of Endocrine and Metabolic Diseases, Affiliated Hospital of Jiangsu University
| | - Bin Wang
- Department of ICU, Affiliated Hospital of Jiangsu University
- Correspondence: Hao Zhang, Emergency Medicine Center, Affiliated Hospital of Jiangsu University, No. 438, Jiefang Road, Jiangsu 212001, China (e-mails: [HZ], [BW])
| | - Hao Zhang
- Emergency Medicine Center, Affiliated Hospital of Jiangsu University, China
- Correspondence: Hao Zhang, Emergency Medicine Center, Affiliated Hospital of Jiangsu University, No. 438, Jiefang Road, Jiangsu 212001, China (e-mails: [HZ], [BW])
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Pan MH, Maresz K, Lee PS, Wu JC, Ho CT, Popko J, Mehta DS, Stohs SJ, Badmaev V. Inhibition of TNF-α, IL-1α, and IL-1β by Pretreatment of Human Monocyte-Derived Macrophages with Menaquinone-7 and Cell Activation with TLR Agonists In Vitro. J Med Food 2016; 19:663-9. [PMID: 27200471 DOI: 10.1089/jmf.2016.0030] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Circulatory markers of low-grade inflammation such as tumor necrosis factor-alpha (TNF-α), interleukin-1 alpha (IL-1α), and interleukin-1 beta (IL-1β) positively correlate with endothelial damage, atheroma formation, cardiovascular disease, and aging. The natural vitamin K2-menaquinone-7 (MK-7) added to the cell culture of human monocyte-derived macrophages (hMDMs) at the same time as toll-like receptor (TLR) agonists did not influence the production of TNF-α. When the cells were pretreated up to 6 h with MK-7 before treatment with TLR agonists, MK-7 did not inhibit significantly the production of TNF-α after the TLR activation. However, 30 h pretreatment of hMDMs with at least 10 μM of MK-7 effectively and dose dependently inhibited the proinflammatory function of hMDMs. Pretreatment of hMDMs with 10 μM of MK-7 for 30 h resulted in 20% inhibition of TNF-α production after lipopolysaccharide (LPS) activation (P < .05) and 43% inhibition after macrophage-activating lipopeptide (MALP) activation (P < .001). Pathogen-associated molecular pattern (PMPP) activation was inhibited by 20% with MK-7 pretreatment; however, this inhibition was not statistically significant. The 30 h pretreatment of a THP-1-differentiated monocyte cell line with MK-7 resulted in a dose-dependent downregulation of TNFα, IL-1α, and IL-1β gene expression as evaluated by RNA semiquantitative reverse transcription polymerase chain reaction (RT-PCR). MK-7 is able to modulate immune and inflammatory reactions in the dose-response inhibition of TNF-α, IL-1α, and IL-1β gene expression and protein production by the healthy hMDMs in vitro.
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Affiliation(s)
- Min-Hsiung Pan
- 1 Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, College of Life Science, Huanggang Normal University , Hubei, China .,2 Department of Medical Research, China Medical University Hospital, China Medical University , Taichung, Taiwan .,3 Department of Health and Nutrition Biotechnology, Asia University , Taichung, Taiwan .,4 Institute of Food Sciences and Technology, National Taiwan University , Taipei, Taiwan
| | - Katarzyna Maresz
- 5 The International Science and Health Foundation , Krakow, Poland
| | - Pei-Sheng Lee
- 4 Institute of Food Sciences and Technology, National Taiwan University , Taipei, Taiwan
| | - Jia-Ching Wu
- 4 Institute of Food Sciences and Technology, National Taiwan University , Taipei, Taiwan
| | - Chi-Tang Ho
- 6 Department of Food Science, Rutgers University , New Brunswick, New Jersey, USA
| | - Janusz Popko
- 7 Medical Institute of the State College of Computer Science and Business Administration , Łomża, Poland .,8 Department of Pediatric Orthopedics, Medical University of Białystok , Białystok, Poland
| | | | - Sidney J Stohs
- 10 Creighton University Medical Center , Omaha, Nebraska, USA
| | - Vladimir Badmaev
- 11 American Medical Holdings Incorporated , New York, New York, USA.,12 NattoPharma ASA , Oslo, Norway
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Hegazy SK, El-Ghany El-Sayed SEMA, El-Hefnawy MES. A Clinical Study Evaluating the Effects of Fluvastatin on Serum Osteoprotegerin Levels in Rheumatoid Arthritis Patients. J Clin Pharmacol 2016; 56:1272-6. [PMID: 26899523 DOI: 10.1002/jcph.725] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 02/15/2016] [Indexed: 12/22/2022]
Abstract
Osteoprotegerin (OPG), a member of the tumor necrosis factor receptor family, has been identified as a critical regulator of bone resorption. Considering the possible role of OPG in rheumatoid arthritis (RA) and in the osteoclastogenesis suppression effects of statins, the present study aims to investigate the effects of fluvastatin on serum levels OPG and disease activity score (DAS) in patients with RA. Forty patients with RA were randomized in a placebo-controlled trial to receive 40 mg fluvastatin or placebo as an adjunct to existing disease-modifying antirheumatic drug (DMARD) therapy (methotrexate, leflunomide, hydroxychloroquine). Patients were followed up over 12 weeks. OPG and disease activity variables were measured at baseline and after 12 weeks of treatment. After 12 weeks, the OPG level was significantly increased in the fluvastatin group compared to the placebo group. DAS-28 was significantly decreased in the fluvastatin group compared to the placebo group. C-reactive protein (CRP), morning stiffness, swollen joint count (SJC), and tender joint count (TJC) were significantly decreased in the fluvastatin group compared to the placebo group; however, erythrocyte sedimentation rate (ESR), modified health assessment questionnaire (MHAQ), and visual analogue screen (VAS) were not changed significantly. In conclusion, fluvastatin administration could increase the OPG levels and improve disease activity variables in patients with RA. Therefore, fluvastatin may serve a potential benefit in the treatment of RA patients.
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Affiliation(s)
- Sahar Kamal Hegazy
- Department of Clinical Pharmacy, Faculty of Pharmacy, Tanta University, Tanta, Egypt
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Sun M, Yang J, Wang J, Hao T, Jiang D, Bao G, Liu G. TNF-α is upregulated in T2DM patients with fracture and promotes the apoptosis of osteoblast cells in vitro in the presence of high glucose. Cytokine 2016; 80:35-42. [PMID: 26945994 DOI: 10.1016/j.cyto.2016.01.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 01/17/2016] [Accepted: 01/21/2016] [Indexed: 01/21/2023]
Abstract
Fracture healing is regulated by proinflammatory mediators such as tumor necrosis factor-α (TNF-α), which poses influence on the balance between bone formation and remodeling. And the diabetes is thought to contribute to the delayed diabetic fracture healing. In the present study, we examined the promotion to proinflammatory cytokines and chemokines in type 2 diabetes mellitus (T2DM) patients with bone fractures, and then evaluated the promotion to TNF-α by the high glucose treatment in human osteoblast-like MG-63 cells and the regulatory role of the promoted TNF-α on the MG-63 cell apoptosis. It was demonstrated that there were significantly-upregulated high-sensitivity C-reactive protein (hsCRP) TNF-α, IL-1β, IL-6, IFN-γ-inducible protein 10 (IP-10) and RANTES in T2DM patients with bone fracture. And the promotion to TNF-α and IL-1β was confirmed in vitro in both mRNA and protein levels in high glucose-treated MG-63 cells. And either TNF-α or high glucose reduced the viability of MG-63 cells, promoted apoptosis and upregulated apoptosis-associated markers, such as released cytochrome c, cleaved caspase 3 and lyzed PARP. Moreover, there was a synergistic effect between TNF-α and high glucose. The viability reduction and the apoptosis induction of MG-63 cells were significantly higher in the group with both TNF-α and high glucose treatments, than in the group with singular TNF-α treatment. In conclusion, our study demonstrated that proinflammatory cytokines and chemokines were promoted in T2DM patients with bone fracture or in osteoblasts by the high glucose stimulation. TNF-α and high glucose synergistically reduced the viability and induced the apoptosis in the osteoblast-like MG-63 cells in vitro. It implies the significant regulatory role of TNF-α in the delayed fracture healing in T2DM.
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Affiliation(s)
- Mingqi Sun
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Junli Yang
- Medical Examination Center, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010010, China
| | - Jianzhong Wang
- Department of Orthopedics and Trauma, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010030, China
| | - Ting Hao
- Department of Orthopedics and Trauma, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010030, China
| | - Dianming Jiang
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Guoyu Bao
- Department of Orthopedics and Trauma, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010030, China.
| | - Guanghui Liu
- Department of Orthopedics and Trauma, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010030, China
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68
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Kaneko K, Williams RO, Dransfield DT, Nixon AE, Sandison A, Itoh Y. Selective Inhibition of Membrane Type 1 Matrix Metalloproteinase Abrogates Progression of Experimental Inflammatory Arthritis: Synergy With Tumor Necrosis Factor Blockade. Arthritis Rheumatol 2016; 68:521-31. [PMID: 26315469 PMCID: PMC4738413 DOI: 10.1002/art.39414] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 08/20/2015] [Indexed: 01/10/2023]
Abstract
OBJECTIVE In rheumatoid arthritis (RA), destruction of articular cartilage by the inflamed synovium is considered to be driven by increased activities of proteolytic enzymes, including matrix metalloproteinases (MMPs). The purpose of this study was to investigate the therapeutic potential of selective inhibition of membrane type 1 MMP (MT1-MMP) and its combination with tumor necrosis factor (TNF) blockage in mice with collagen-induced arthritis (CIA). METHODS CIA was induced in DBA/1 mice by immunization with bovine type II collagen. From the onset of clinical arthritis, mice were treated with MT1-MMP selective inhibitory antibody DX-2400 and/or TNFR-Fc fusion protein. Disease progression was monitored daily, and serum, lymph nodes, and affected paws were collected at the end of the study for cytokine and histologic analyses. For in vitro analysis, bone marrow-derived macrophages were stimulated with lipopolysaccharide for 24 hours in the presence of DX-2400 and/or TNFR-Fc to analyze cytokine production and phenotype. RESULTS DX-2400 treatment significantly reduced cartilage degradation and disease progression in mice with CIA. Importantly, when combined with TNF blockade, DX-2400 acted synergistically, inducing long-term benefit. DX-2400 also inhibited the up-regulation of interleukin-12 (IL-12)/IL-23 p40 via polarization toward an M2 phenotype in bone marrow-derived macrophages. Increased production of IL-17 induced by anti-TNF, which correlated with an incomplete response to anti-TNF, was abrogated by combined treatment with DX-2400 in CIA. CONCLUSION Targeting MT1-MMP provides a potential strategy for joint protection, and its combination with TNF blockade may be particularly beneficial in RA patients with an inadequate response to anti-TNF therapy.
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Affiliation(s)
- Kazuyo Kaneko
- Kennedy Institute of Rheumatology and University of OxfordOxfordUK
| | | | | | | | - Ann Sandison
- Charing Cross Hospital and Imperial College LondonLondonUK
| | - Yoshifumi Itoh
- Kennedy Institute of Rheumatology and University of OxfordOxfordUK
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69
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Shuto T, Wachi T, Shinohara Y, Nikawa H, Makihira S. Increase in receptor activator of nuclear factor κB ligand/osteoprotegerin ratio in peri-implant gingiva exposed to Porphyromonas gingivalis lipopolysaccharide. J Dent Sci 2016; 11:8-16. [PMID: 30894939 PMCID: PMC6395150 DOI: 10.1016/j.jds.2015.10.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 08/29/2015] [Indexed: 11/30/2022] Open
Abstract
Background/purpose The prevalence of peri-implant diseases, including peri-implant mucositis and peri-implantitis, is increasing. The aim of this study was to elucidate the pathological mechanisms of inflammation and alveolar bone resorption in peri-implant tissues. To do this, we fabricated inflamed gingiva around mini-implants in the palatine processes of rats using lipopolysaccharide derived from Porphyromonas gingivalis (P.g-LPS). Materials and methods Pure titanium mini-implants were implanted into the palatine processes of rats, and then intermittent injections of P.g-LPS were made into the gingival tissues surrounding the mini-implants. The expression patterns of tumor necrosis factor-α, interleukin-1β, chemokine (C-C motif) ligand 2, receptor activator of nuclear factor κB ligand (RANKL), and osteoprotegerin (OPG) in the tissues were examined using real-time reverse transcriptase polymerase chain reaction or enzyme-linked immunosorbent assays. Immunohistochemical analysis was also performed to compare the T and B cells expressing RANKL. Results P.g-LPS increased the expressions of tumor necrosis factor-α, interleukin-1β, chemokine (C-C motif) ligand 2, and RANKL in the gingival tissues surrounding the mini-implants. In contrast, the expression of OPG in the P.g-LPS samples was decreased. Consequently, the RANKL/OPG ratio was significantly increased. Moreover, cells stained positively for both anti-CD3 and anti-RANKL antibodies were only found in the samples treated with P.g-LPS. Conclusion These data revealed that P.g-LPS injections increased the RANKL/OPG ratio in the gingival tissues surrounding mini-implants in the rat model. In addition, the CD3-positive cells in the gingival tissues injected with P.g-LPS expressed RANKL. This suggests that the activated T cells capable of infiltrating gingival tissues affected by P.g-LPS may be one of the sources of RANKL and may also be involved in the disease progression from peri-implant mucositis to peri-implantitis.
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Affiliation(s)
- Takahiro Shuto
- Section of Fixed Prosthodontics, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Takanori Wachi
- Section of Fixed Prosthodontics, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Yoshinori Shinohara
- Section of Fixed Prosthodontics, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Hiroki Nikawa
- Department of Oral Biology and Engineering, Integrated Health Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Seicho Makihira
- Section of Fixed Prosthodontics, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
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Abstract
Bone involvement represented by osteolytic bone disease (OBD) or osteopenia is one of the pathognomonic and defining characteristics of multiple myeloma (MM). Nearly 90 % of patients with MM develop osteolytic bone lesions, frequently complicated by skeletal-related events (SRE) such as severe bone pain, pathological fractures, vertebral collapse, hypercalcemia, and spinal cord compression. All of these not only result in a negative impact on quality of life but also adversely impact overall survival. OBD is a consequence of increased osteoclast (OC) activation along with osteoblast (OB) inhibition, resulting in altered bone remodeling. OC number and activity are increased in MM via cytokine deregulation within the bone marrow (BM) milieu, whereas negative regulators of OB differentiation suppress bone formation. Inhibition of osteolysis and stimulation of OB differentiation leads to reduced tumor growth in vivo. Therefore, novel agents targeting OBD are promising therapeutic strategies not only for the treatment of MM OBD but also for the treatment of MM. Several novel agents in addition to bisphosphonates are currently under investigation for their positive effect on bone remodeling via OC inhibition or OB stimulation. Future studies will look to combine or sequence all of these agents with the goal of not only alleviating morbidity from MM OBD but also capitalizing on the resultant antitumor activity.
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Affiliation(s)
- Homare Eda
- Multiple Myeloma Program, Medical Oncology, Massachusetts General Hospital, Boston, MA, USA
| | - Loredana Santo
- Multiple Myeloma Program, Medical Oncology, Massachusetts General Hospital, Boston, MA, USA
| | - G David Roodman
- Multiple Myeloma Program, Medical Oncology, Massachusetts General Hospital, Boston, MA, USA
| | - Noopur Raje
- Multiple Myeloma Program, Medical Oncology, Massachusetts General Hospital, Boston, MA, USA.
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Xu X, Wang MM, Sun ZL, Zhou DP, Wang L, Wang FQ, Xu ZY, Ma Q. Discovery of serum proteomic biomarkers for prediction of response to moxibustion treatment in rats with collagen-induced arthritis: an exploratory analysis. Acupunct Med 2015; 34:184-93. [PMID: 26541191 DOI: 10.1136/acupmed-2015-010909] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/01/2015] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To examine the possible impact of moxibustion on the serum proteome of the collagen-induced arthritis (CIA) rat model. MATERIALS AND METHODS Thirty-six male Sprague-Dawley rats were included in this experiment. The CIA animal model was prepared by injection of type II bovine collagen in Freund's adjuvant on the first and seventh day. The 36 rats were randomly divided into two groups: the untreated CIA group (control), and the CIA plus treatment with moxibustion (CIA+moxi) group. Moxibustion was administered daily at ST36 and BL23 for 7, 14 or 21 days (n=12 rats each). Arthritis score was used to assess the severity of arthritis. At the end of each 7 day treatment, blood samples from the control group and the CIA+moxi group were collected. After removal of high abundance proteins from serum samples, two-dimensional gel combined with matrix-assisted laser desorption ionisation time-of-flight MS/MS (MALDI-TOF-MS/MS) techniques were performed to examine serum protein expression patterns of the CIA rat model with and without moxibustion treatment. In addition, the relevant proteins were further analysed with the use of bioinformatics analysis. RESULTS Moxibustion significantly decreased arthritis severity in the rats in the CIA+moxi group, when compared with the rats in the CIA group 35 days after the first immunisation (p=0.001). Seventeen protein spots which changed >1.33 or <0.77 at p<0.05 using Bonferonni correction for multiple testing were found to be common to all three comparisons, and these proteins were used for classification of functions using the Gene Ontology method. Consequently, with the use of the Ingenuity Pathway Analysis, the top canonical pathways and a predicted proteomic network related to the moxibustion effect of CIA were established. CONCLUSIONS Using the proteomics technique, we have identified novel candidate proteins that may be involved in the mechanisms of action underlying the beneficial effects of moxibustion in rats with CIA. Our findings suggest that immune responses and metabolic processes may be involved in mediating the effects of moxibustion. Moreover, periodxiredoxin I (PRDX1) and inositol 1,4,5-triphosphate receptor (IP3R) may be potential targets.
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Affiliation(s)
- Xiao Xu
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Miao-Miao Wang
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhi-Ling Sun
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Dan-Ping Zhou
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Ling Wang
- Analytical and Testing Center, Nanjing Medical University, Nanjing, China
| | - Fu-Qiang Wang
- Analytical and Testing Center, Nanjing Medical University, Nanjing, China
| | - Zhi-Yang Xu
- Analytical and Testing Center, Nanjing Medical University, Nanjing, China
| | - Qian Ma
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, China
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72
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Focal bone involvement in inflammatory arthritis: the role of IL17. Rheumatol Int 2015; 36:469-82. [DOI: 10.1007/s00296-015-3387-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 10/27/2015] [Indexed: 12/17/2022]
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Tian Z, Wang DS, Wang XS, Tian J, Han J, Guo YY, Feng B, Zhang N, Zhao MG, Liu SB. Analgesic effects of NB001 on mouse models of arthralgia. Mol Brain 2015; 8:60. [PMID: 26452469 PMCID: PMC4599030 DOI: 10.1186/s13041-015-0151-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 10/02/2015] [Indexed: 11/25/2022] Open
Abstract
Our previous studies have demonstrated the critical roles of calcium-stimulated adenylyl cyclase 1 (AC1) in the central nervous system in chronic pain. In the present study, we examined the analgesic effects of NB001, a selective inhibitor of AC1, on animal models of ankle joint arthritis and knee joint arthritis induced by complete Freund’s adjuvant injection. NB001 treatment had no effect on joint edema, stiffness, and joint destruction. Furthermore, the treatment failed to attenuate the disease progression of arthritis. However, NB001 treatment (3 mg/kg) significantly weakened joint pain-related behavior in the mouse models of ankle joint arthritis and knee joint arthritis. Results indicated that NB001 exhibited an analgesic effect on the animal models of arthritis but was not caused by anti-inflammatory activities.
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Affiliation(s)
- Zhen Tian
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China
| | - Dong-sheng Wang
- Department of Orthopedics, Jinling Hospital, Clinical School of Nanjing, Second Military Medical University, Nanjing, 210002, China
| | - Xin-shang Wang
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China
| | - Jiao Tian
- Department of Pediatrics, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Jing Han
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China
| | - Yan-yan Guo
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China
| | - Bin Feng
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China.,Department of Pharmacy, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, China
| | - Nan Zhang
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China
| | - Ming-gao Zhao
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China.
| | - Shui-bing Liu
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China.
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74
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Abdelaziz DM, Stone LS, Komarova SV. Localized experimental bone metastasis drives osteolysis and sensory hypersensitivity at distant non-tumor-bearing sites. Breast Cancer Res Treat 2015. [PMID: 26208488 DOI: 10.1007/s10549-015-3517-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Patients with breast cancer metastasis to bone suffer from inadequate pain relief. Animal models provide increased understanding of cancer-induced bone and sensory alterations. The objective of this study was to investigate the measures of pain at distant non-tumor-bearing sites in animals with localized bone metastasis. Immunocompetent BALB/c mice are injected intra-tibially with murine mammary carcinoma cells (4T1) or saline, and the sensitivity to mechanical and thermal stimuli in the contralateral paw was examined. In addition to previously demonstrated development of osteolysis and hypersensitivity to mechanical and thermal stimuli in the cancer-injected tibia, these animals exhibited an increase in sensory hypersensitivity in the contralateral limb. No bone lesions were evident on radiographs of the contralateral limbs. Histomorphometry detected decreased bone volume per tissue volume and increased osteoclast number in the contralateral tibia and vertebral bones of cancer-bearing animals. Neuroplasticity was examined by immunofluorescence for calcitonin gene-related peptide (CGRP) in sensory neurons and glial fibrillary acidic protein (GFAP) in lumbar spinal cords. CGRP-immunoreactivity and GFAP-immunoreactivity were significantly elevated both ipsilateral and contralateral in tumor-bearing animals. The anti-inflammatory and osteolysis-targeting drug rapamycin reduced hypersensitivity to mechanical and cold stimuli, attenuated GFAP over-expression, and lowered osteoclast number. The osteoclast-targeting drug pamidronate reduced sensitivity to cold and protected against bone loss. Localized bone cancer drives hypersensitivity, bone remodeling, and sensory neuron plasticity at sites distant from the primary tumor area. Drugs targeting these mechanisms may be useful in the treatment of pain distant from the primary tumor site.
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75
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Pollock NK. Childhood obesity, bone development, and cardiometabolic risk factors. Mol Cell Endocrinol 2015; 410:52-63. [PMID: 25817542 PMCID: PMC4444415 DOI: 10.1016/j.mce.2015.03.016] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 03/21/2015] [Accepted: 03/21/2015] [Indexed: 12/29/2022]
Abstract
Osteoporosis and obesity are both major public health concerns. It has long been considered that these are distinct disorders rarely found in the same individual; however, emerging evidence supports an important interaction between adipose tissue and the skeleton. Whereas overweight per se may augment bone strength, animal studies suggest that the metabolic impairment that accompanies obesity is detrimental to bone. Obesity during childhood, a critical time for bone development, likely has profound and lasting effects on bone strength and fracture risk. This notion has received little attention in children and results are mixed, with studies reporting that bone strength development is enhanced or impaired by obesity. Whether obesity is a risk factor for osteoporosis or childhood bone health, in general, remains an important clinical question. Here, we will focus on clarifying the controversial relationships between childhood obesity and bone strength development, and provide insights into potential mechanisms that may regulate the effect of excess adiposity on bone.
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Affiliation(s)
- Norman K Pollock
- Department of Pediatrics, Medical College of Georgia, Georgia Regents University, Augusta, GA, USA.
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76
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Fukui T, Mifune Y, Matsumoto T, Shoji T, Kawakami Y, Kawamoto A, Ii M, Akimaru H, Kuroda T, Horii M, Yokoyama A, Alev C, Kuroda R, Kurosaka M, Asahara T. Superior Potential of CD34-Positive Cells Compared to Total Mononuclear Cells for Healing of Nonunion following Bone Fracture. Cell Transplant 2015; 24:1379-93. [DOI: 10.3727/096368914x681586] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
We recently demonstrated that the local transplantation of human peripheral blood (PB) CD34+ cells, an endothelial/hematopoietic progenitor cell-rich population, contributes to fracture repair via vasculogenesis/angiogenesis and osteogenesis. Human PB mononuclear cells (MNCs) are also considered a potential cell fraction for neovascularization. We have previously shown the feasibility of human PB MNCs to enhance fracture healing. However, there is no report directly comparing the efficacy for fracture repair between CD34+ cells and MNCs. In addition, an unhealing fracture model, which does not accurately resemble a clinical setting, was used in our previous studies. To overcome these issues, we compared the capacity of human granulocyte colony-stimulating factor-mobilized PB (GM-PB) CD34+ cells and human GM-PB MNCs in a nonunion model, which more closely resembles a clinical setting. First, the effect of local transplantation of 1 × 105 GM-PB CD34+ cells (CD34+ group), 1 × 107 GM-PB MNCs (containing approximately 1 × 105 GM-PB CD34+ cells) (MNC group), and phosphate-buffered saline (PBS) (PBS group) on nonunion healing was compared. Similar augmentation of blood flow recovery at perinonunion sites was observed in the CD34+ and MNC groups. Meanwhile, a superior effect on nonunion repair was revealed by radiological, histological, and functional assessment in the CD34+ group compared with the other groups. Moreover, through in vivo and in vitro experiments, excessive inflammation induced by GM-PB MNCs was confirmed and believed to be one of the mechanisms underlying this potency difference. These results strongly suggest that local transplantation of GM-PB CD34+ cells is a practical and effective strategy for treatment of nonunion after fracture.
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Affiliation(s)
- Tomoaki Fukui
- Group of Vascular Regeneration Research, Institute of Biomedical Research and Innovation, Kobe, Hyogo, Japan
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Yutaka Mifune
- Group of Vascular Regeneration Research, Institute of Biomedical Research and Innovation, Kobe, Hyogo, Japan
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Tomoyuki Matsumoto
- Group of Vascular Regeneration Research, Institute of Biomedical Research and Innovation, Kobe, Hyogo, Japan
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Taro Shoji
- Group of Vascular Regeneration Research, Institute of Biomedical Research and Innovation, Kobe, Hyogo, Japan
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Yohei Kawakami
- Group of Vascular Regeneration Research, Institute of Biomedical Research and Innovation, Kobe, Hyogo, Japan
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Atsuhiko Kawamoto
- Group of Vascular Regeneration Research, Institute of Biomedical Research and Innovation, Kobe, Hyogo, Japan
| | - Masaaki Ii
- Group of Translational Stem Cell Research, Department of Pharmacology, Osaka Medical College, Takatsuki, Osaka, Japan
| | - Hiroshi Akimaru
- Group of Vascular Regeneration Research, Institute of Biomedical Research and Innovation, Kobe, Hyogo, Japan
| | - Tomoya Kuroda
- Group of Vascular Regeneration Research, Institute of Biomedical Research and Innovation, Kobe, Hyogo, Japan
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Miki Horii
- Group of Vascular Regeneration Research, Institute of Biomedical Research and Innovation, Kobe, Hyogo, Japan
| | - Ayumi Yokoyama
- Group of Vascular Regeneration Research, Institute of Biomedical Research and Innovation, Kobe, Hyogo, Japan
| | - Cantas Alev
- Group of Vascular Regeneration Research, Institute of Biomedical Research and Innovation, Kobe, Hyogo, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Masahiro Kurosaka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Takayuki Asahara
- Group of Vascular Regeneration Research, Institute of Biomedical Research and Innovation, Kobe, Hyogo, Japan
- Department of Regenerative Medicine Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
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Aberrant Activation of the RANK Signaling Receptor Induces Murine Salivary Gland Tumors. PLoS One 2015; 10:e0128467. [PMID: 26061636 PMCID: PMC4464738 DOI: 10.1371/journal.pone.0128467] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 04/27/2015] [Indexed: 12/21/2022] Open
Abstract
Unlike cancers of related exocrine tissues such as the mammary and prostate gland, diagnosis and treatment of aggressive salivary gland malignancies have not markedly advanced in decades. Effective clinical management of malignant salivary gland cancers is undercut by our limited knowledge concerning the key molecular signals that underpin the etiopathogenesis of this rare and heterogeneous head and neck cancer. Without knowledge of the critical signals that drive salivary gland tumorigenesis, tumor vulnerabilities cannot be exploited that allow for targeted molecular therapies. This knowledge insufficiency is further exacerbated by a paucity of preclinical mouse models (as compared to other cancer fields) with which to both study salivary gland pathobiology and test novel intervention strategies. Using a mouse transgenic approach, we demonstrate that deregulation of the Receptor Activator of NFkB Ligand (RANKL)/RANK signaling axis results in rapid tumor development in all three major salivary glands. In line with its established role in other exocrine gland cancers (i.e., breast cancer), the RANKL/RANK signaling axis elicits an aggressive salivary gland tumor phenotype both at the histologic and molecular level. Despite the ability of this cytokine signaling axis to drive advanced stage disease within a short latency period, early blockade of RANKL/RANK signaling markedly attenuates the development of malignant salivary gland neoplasms. Together, our findings have uncovered a tumorigenic role for RANKL/RANK in the salivary gland and suggest that targeting this pathway may represent a novel therapeutic intervention approach in the prevention and/or treatment of this understudied head and neck cancer.
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78
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Yeh CC, Su YH, Lin YJ, Chen PJ, Shi CS, Chen CN, Chang HI. Evaluation of the protective effects of curcuminoid (curcumin and bisdemethoxycurcumin)-loaded liposomes against bone turnover in a cell-based model of osteoarthritis. Drug Des Devel Ther 2015; 9:2285-300. [PMID: 25945040 PMCID: PMC4408943 DOI: 10.2147/dddt.s78277] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Curcumin (Cur) and bisdemethoxycurcumin (BDMC), extracted from Curcuma longa, are poorly water-soluble polyphenol compounds that have shown anti-inflammatory potential for the treatment of osteoarthritis. To increase cellular uptake of Cur and BDMC in bone tissue, soybean phosphatidylcholines were used for liposome formulation. In this study, curcuminoid (Cur and BDMC)-loaded liposomes were characterized in terms of particle size, encapsulation efficiency, liposome stability, and cellular uptake. The results show that there is about 70% entrapment efficiency of Cur and BDMC in liposomes and that particle sizes are stable after liposome formation. Both types of liposome can inhibit macrophage inflammation and osteoclast differential activities. In comparison with free drugs (Cur and BDMC), curcuminoid-loaded liposomes were less cytotoxic and expressed high cellular uptake of the drugs. Of note is that Cur-loaded liposomes can prevent liposome-dependent inhibition of osteoblast differentiation and mineralization, but BDMC-loaded liposomes could not. With interleukin (IL)-1β stimulation, curcuminoid-loaded liposomes can successfully downregulate the expression of inflammatory markers on osteoblasts, and show a high osteoprotegerin (OPG)/receptor activator of nuclear factor κB ligand (RANKL) ratio to prevent osteoclastogenesis. In the present study, we demonstrated that Cur and BDMC can be successfully encapsulated in liposomes and can reduce osteoclast activity and maintain osteoblast functions. Therefore, curcuminoid-loaded liposomes may slow osteoarthritis progression.
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Affiliation(s)
- Chih-Chang Yeh
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan, Republic of China
- Orthopaedic Department, Chiayi Branch, Taichung Veterans General Hospital, Chiayi, Taiwan, Republic of China
| | - Yu-Han Su
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi, Taiwan, Republic of China
| | - Yu-Jhe Lin
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi, Taiwan, Republic of China
| | - Pin-Jyun Chen
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi, Taiwan, Republic of China
| | - Chung-Sheng Shi
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan, Republic of China
| | - Cheng-Nan Chen
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi, Taiwan, Republic of China
| | - Hsin-I Chang
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi, Taiwan, Republic of China
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79
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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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80
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The role of IL-1β in the bone loss during rheumatic diseases. Mediators Inflamm 2015; 2015:782382. [PMID: 25954061 PMCID: PMC4410538 DOI: 10.1155/2015/782382] [Citation(s) in RCA: 136] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 02/15/2015] [Accepted: 03/04/2015] [Indexed: 11/18/2022] Open
Abstract
Several inflammatory diseases have been associated with increased bone resorption and fracture rates and different studies supported the relation between inflammatory cytokines and osteoclast activity. The main factor required for osteoclast activation is the stimulation by receptor activator of nuclear factor kappa-B ligand (RANKL) expressed on osteoblasts. In this context, interleukin- (IL-) 1β, one of the most powerful proinflammatory cytokines, is a strong stimulator of in vitro and in vivo bone resorption via upregulation of RANKL that stimulates the osteoclastogenesis. The resulting effects lead to an imbalance in bone metabolism favouring bone resorption and osteoporosis. In this paper, we review the available literature on the role of IL-1β in the pathogenesis of bone loss. Furthermore, we analysed the role of IL-1β in bone resorption during rheumatic diseases and, when available, we reported the efficacy of anti-IL-1β therapy in this field.
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81
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Molina PE, Gardner JD, Souza-Smith FM, Whitaker AM. Alcohol abuse: critical pathophysiological processes and contribution to disease burden. Physiology (Bethesda) 2015; 29:203-15. [PMID: 24789985 DOI: 10.1152/physiol.00055.2013] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Alcohol abuse; the most common and costly form of drug abuse, is a major contributing factor to many disease categories. The alcohol-attributable disease burden is closely related to the average volume of alcohol consumption, with dose-dependent relationships between amount and duration of alcohol consumption and the incidence of diabetes mellitus, hypertension, cardiovascular disease, stroke, and pneumonia. The frequent occurrence of alcohol use disorders in the adult population and the significant and widespread detrimental organ system effects highlight the importance of recognizing and further investigating the pathophysiological mechanisms underlying alcohol-induced tissue and organ injury.
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Affiliation(s)
- Patricia E Molina
- Department of Physiology and Alcohol and Drug Abuse Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
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82
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Mirtaheri E, Pourghassem Gargari B, Kolahi S, Dehghan P, Asghari-Jafarabadi M, Hajalilou M, Shakiba Novin Z, Mesgari Abbasi M. Effects of Alpha-Lipoic Acid Supplementation on Inflammatory Biomarkers and Matrix Metalloproteinase-3 in Rheumatoid Arthritis Patients. J Am Coll Nutr 2015; 34:310-7. [DOI: 10.1080/07315724.2014.910740] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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83
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Pappalardo A, Thompson K. Novel immunostimulatory effects of osteoclasts and macrophages on human γδ T cells. Bone 2015; 71:180-8. [PMID: 25445456 PMCID: PMC4289917 DOI: 10.1016/j.bone.2014.10.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 10/23/2014] [Accepted: 10/25/2014] [Indexed: 11/29/2022]
Abstract
It has been widely reported that T cells are capable of influencing osteoclast formation and bone remodelling, yet relatively little is known of the reciprocal effects of osteoclasts for affecting T cell function and/or activity. In this study we investigated the effects of human osteoclasts on the function of γδ T cells, a subset of non-CD4(+) T cells implicated in a variety of inflammatory disease states. γδ T cells and CD4(+) T cells were isolated from peripheral blood of healthy volunteers and were co-cultured with autologous mature osteoclasts (generated by treatment with M-CSF and RANKL) before phenotypical and functional changes in the T cell populations were assessed. Macrophages, osteoclasts, and conditioned medium derived from macrophages or osteoclasts induced activation of γδ T cells, as determined by the expression of the early activation marker CD69. TNFα was a major mediator of this stimulatory effect on γδ T cells. Consistent with this stimulatory effect, osteoclasts augmented proliferation of IL-2-stimulated γδ T cells and also supported the survival of unstimulated γδ and CD4(+) T cells, although these effects required co-culture with osteoclasts. Co-culture with osteoclasts also increased the proportion of γδ T cells producing IFNγ, but did not modulate IFNγ or IL-17 production by CD4(+) T cells. We provide new insights into the in vitro interactions between human γδ T cells and osteoclasts/macrophages, and demonstrate that osteoclasts or their precursors are capable of influencing γδ T function both via the release of soluble factors and also through direct cell-cell interactions.
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Affiliation(s)
- Angela Pappalardo
- Musculoskeletal Research Programme, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Keith Thompson
- Musculoskeletal Research Programme, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK.
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84
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Abstract
Osteolytic bone destruction is a hallmark of bone-metastatic cancers. Current therapy is unable to completely cure or prevent this disease in patients. The p38 mitogen-activated protein kinase (MAPK) affects a diverse range of intracellular responses with well-known roles in development, cell-cycle and differentiation, inflammation, apoptosis, senescence, and tumorigenesis. This article is an overview of the contribution of tumor cell-expressed p38 MAPK to the regulation of osteoclastogenesis, osteoblastogenesis, and osteolyticbone lesions.
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Affiliation(s)
- Huan Liu
- Department of Lymphoma and Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Jin He
- Department of Lymphoma and Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Jing Yang
- Department of Lymphoma and Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA ; Cancer Research Institution, Guangzhou Medical University, Guangzhou, China
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85
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The effect of tocilizumab on bone mineral density, serum levels of Dickkopf-1 and bone remodeling markers in patients with rheumatoid arthritis. Joint Bone Spine 2014; 82:109-15. [PMID: 25557658 DOI: 10.1016/j.jbspin.2014.10.015] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 10/22/2014] [Indexed: 11/20/2022]
Abstract
UNLABELLED Previous studies showed that the control of inflammation by biological therapies has a positive effect on bone in inflammatory diseases. The objective of this study was to assess the effects on bone mineral density (BMD) and bone remodeling of an anti-IL-6 monoclonal antibody (tocilizumab (TCZ)) in patients with rheumatoid arthritis (RA). METHODS One hundred and three patients (75% women, 52±12years) with active RA were treated with TCZ 8mg/kg + methotrexate (MTX) every 4 weeks during 48 weeks. Hip and lumbar spine BMDs were measured at baseline and after 48 weeks by dual energy X-ray absorptiometry (DXA). Pro-collagen serum type I N-terminal propeptide (PINP), serum C-terminal cross-linked telopeptide of type I collagen (CTX-I), and serum levels of total Dickkopf-1 (Dkk-1) and sclerostin were assessed at baseline, 12 and 48 weeks. RESULTS BMD was available for 76 patients at baseline and at the end of the study. There was no change in lumbar spine and hip BMD over 48 weeks. Serum PINP increased from baseline by 22% (P≤0.001) and 19% (P≤0.001) at week 12 and week 48, whereas serum CTX-I remained stable. Serum DKK-1 significantly decreased from baseline by -31% (P≤0.001) and -25% (P=0.025) at week 12 and 48. Similar results were observed in the patients receiving low doses of oral corticosteroids. CONCLUSION In this 1-year prospective open study, patients with active RA receiving TCZ and MTX had no change in BMD, a decrease in serum DKK-1 and an increase in bone formation marker.
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86
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Liu Q, Zhao J, Tan R, Zhou H, Lin Z, Zheng M, Romas E, Xu J, Sims NA. Parthenolide inhibits pro-inflammatory cytokine production and exhibits protective effects on progression of collagen-induced arthritis in a rat model. Scand J Rheumatol 2014; 44:182-91. [DOI: 10.3109/03009742.2014.938113] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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87
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Mukai T, Ishida S, Ishikawa R, Yoshitaka T, Kittaka M, Gallant R, Lin YL, Rottapel R, Brotto M, Reichenberger EJ, Ueki Y. SH3BP2 cherubism mutation potentiates TNF-α-induced osteoclastogenesis via NFATc1 and TNF-α-mediated inflammatory bone loss. J Bone Miner Res 2014; 29:2618-35. [PMID: 24916406 PMCID: PMC4262741 DOI: 10.1002/jbmr.2295] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 05/19/2014] [Accepted: 06/02/2014] [Indexed: 01/03/2023]
Abstract
Cherubism (OMIM# 118400) is a genetic disorder with excessive jawbone resorption caused by mutations in SH3 domain binding protein 2 (SH3BP2), a signaling adaptor protein. Studies on the mouse model for cherubism carrying a P416R knock-in (KI) mutation have revealed that mutant SH3BP2 enhances tumor necrosis factor (TNF)-α production and receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclast differentiation in myeloid cells. TNF-α is expressed in human cherubism lesions, which contain a large number of tartrate-resistant acid phosphatase (TRAP)-positive multinucleated cells, and TNF-α plays a critical role in inflammatory bone destruction in homozygous cherubism mice (Sh3bp2(KI/KI) ). The data suggest a pathophysiological relationship between mutant SH3BP2 and TNF-α-mediated bone loss by osteoclasts. Therefore, we investigated whether P416R mutant SH3BP2 is involved in TNF-α-mediated osteoclast formation and bone loss. Here, we show that bone marrow-derived M-CSF-dependent macrophages (BMMs) from the heterozygous cherubism mutant (Sh3bp2(KI/+) ) mice are highly responsive to TNF-α and can differentiate into osteoclasts independently of RANKL in vitro by a mechanism that involves spleen tyrosine kinase (SYK) and phospholipase Cγ2 (PLCγ2) phosphorylation, leading to increased nuclear translocation of NFATc1. The heterozygous cherubism mutation exacerbates bone loss with increased osteoclast formation in a mouse calvarial TNF-α injection model as well as in a human TNF-α transgenic mouse model (hTNFtg). SH3BP2 knockdown in RAW264.7 cells results in decreased TRAP-positive multinucleated cell formation. These findings suggest that the SH3BP2 cherubism mutation can cause jawbone destruction by promoting osteoclast formation in response to TNF-α expressed in cherubism lesions and that SH3BP2 is a key regulator for TNF-α-induced osteoclastogenesis. Inhibition of SH3BP2 expression in osteoclast progenitors could be a potential strategy for the treatment of bone loss in cherubism as well as in other inflammatory bone disorders.
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Affiliation(s)
- Tomoyuki Mukai
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, MO, USA
| | - Shu Ishida
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, MO, USA
- Department of Periodontal Medicine, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, JAPAN
| | - Remi Ishikawa
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, MO, USA
- Department of Molecular Biology and Biochemistry, Okayama University Medical School, Okayama, JAPAN
| | - Teruhito Yoshitaka
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, MO, USA
| | - Mizuho Kittaka
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, MO, USA
- Department of Periodontal Medicine, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, JAPAN
| | - Richard Gallant
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, MO, USA
| | - Yi-Ling Lin
- UCLA School of Dentistry, Los Angeles, CA, USA
| | - Robert Rottapel
- Ontario Cancer Institute and the Campbell Family Cancer Research Institute, University of Toronto, Toronto, Canada
- Division of Rheumatology, Department of Medicine, Saint Michael's Hospital, Toronto, Canada
| | - Marco Brotto
- School of Nursing & Health Studies and School of Medicine, University of Missouri-Kansas City, MO, USA
| | - Ernst J. Reichenberger
- Department of Reconstructive Sciences, School of Dental Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Yasuyoshi Ueki
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, MO, USA
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88
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Lohmann CH, Singh G, Willert HG, Buchhorn GH. Metallic debris from metal-on-metal total hip arthroplasty regulates periprosthetic tissues. World J Orthop 2014; 5:660-666. [PMID: 25405095 PMCID: PMC4133474 DOI: 10.5312/wjo.v5.i5.660] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2013] [Revised: 06/20/2014] [Accepted: 07/14/2014] [Indexed: 02/06/2023] Open
Abstract
The era of metal-on-metal (MoM) total hip arthroplasty has left the orthopaedic community with valuable insights and lessons on periprosthetic tissue reactions to metallic debris. Various terms have been used to describe the tissue reactions. Sometimes the nomenclature can be confusing. We present a review of the concepts introduced by Willert and Semlitsch in 1977, along with further developments made in the understanding of periprosthetic tissue reactions to metallic debris. We propose that periprosthetic tissue reactions be thought of as (1) gross (metallosis, necrosis, cyst formation and pseudotumour); (2) histological (macrophage-dominated, lymphocyte-dominated or mixed); and (3) molecular (expression of inflammatory mediators and cytokines such as interleukin-6 and tumor necrosis factor-alpha). Taper corrosion and modularity are discussed, along with future research directions to elucidate the antigen-presenting pathways and material-specific biomarkers which may allow early detection and intervention in a patient with adverse periprosthetic tissue reactions to metal wear debris.
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89
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Transglutaminase factor XIII promotes arthritis through mechanisms linked to inflammation and bone erosion. Blood 2014; 125:427-37. [PMID: 25336631 DOI: 10.1182/blood-2014-08-594754] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Rheumatoid arthritis is a chronic inflammatory disease characterized by synovial hyperplasia, inflammatory cell infiltration, irreversible cartilage and bone destruction, and exuberant coagulation system activity within joint tissue. Here, we demonstrate that the coagulation transglutaminase, factor XIII (fXIII), drives arthritis pathogenesis by promoting local inflammatory and tissue degradative and remodeling events. All pathological features of collagen-induced arthritis (CIA) were significantly reduced in fXIII-deficient mice. However, the most striking difference in outcome was the preservation of cartilage and bone in fXIIIA(-/-) mice concurrent with reduced osteoclast numbers and activity. The local expression of osteoclast effectors receptor activator of nuclear factor-κB ligand (RANKL) and tartrate resistant acid phosphatase were significantly diminished in CIA-challenged and even unchallenged fXIIIA(-/-) mice relative to wild-type animals, but were similar in wild-type and fibrinogen-deficient mice. Impaired osteoclast formation in fXIIIA(-/-) mice was not due to an inherent deficiency of monocyte precursors, but it was linked to reduced RANKL-driven osteoclast formation. Furthermore, treatment of mice with the pan-transglutaminase inhibitor cystamine resulted in significantly diminished CIA pathology and local markers of osteoclastogenesis. Thus, eliminating fXIIIA limits inflammatory arthritis and protects from cartilage and bone destruction in part through mechanisms linked to reduced RANKL-mediated osteoclastogenesis. In summary, therapeutic strategies targeting fXIII activity may prove beneficial in limiting arthropathies and other degenerative bone diseases.
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90
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Chen CL, Liu FL, Lee CC, Chen TC, Ahmed Ali AA, Sytwu HK, Chang DM, Huang HS. Modified salicylanilide and 3-phenyl-2H-benzo[e][1,3]oxazine-2,4(3H)-dione derivatives as novel inhibitors of osteoclast differentiation and bone resorption. J Med Chem 2014; 57:8072-85. [PMID: 25200306 DOI: 10.1021/jm5007897] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Inhibition of osteoclast formation is a potential strategy to prevent inflammatory bone resorption and to treat bone diseases. In the present work, the purpose was to discover modified salicylanilides and 3-phenyl-2H-benzo[e][1,3]oxazine-2,4(3H)-dione derivatives as potential antiosteoclastogenic agents. Their inhibitory effects on RANKL-induced osteoclastogenesis from RAW264.7 cells were evaluated by TRAP stain assay. The most potent compounds, 1d and 5d, suppressed RANKL-induced osteoclast formation and TRAP activity dose-dependently. The cytotoxicity assay on RAW264.7 cells suggested that the inhibition of osteoclastic bone resorption by these compounds did not result from their cytotoxicity. Moreover, both compounds downregulated RANKL-induced NF-κB and NFATc1 in the nucleus, suppressed the expression of osteoclastogenesis-related marker genes during osteoclastogenesis, and prevented osteoclastic bone resorption but did not impair osteoblast differentiation in MC3T3-E1. Therefore, these modified salicylanilides and 3-phenyl-2H-benzo[e][1,3]oxazine-2,4(3H)-diones could be potential lead compounds for the development of a new class of antiresorptive agents.
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Affiliation(s)
- Chun-Liang Chen
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University , Taipei 110, Taiwan ROC
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91
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Drynda A, Singh G, Buchhorn GH, Awiszus F, Ruetschi M, Feuerstein B, Kliche S, Lohmann CH. Metallic wear debris may regulate CXCR4 expression in vitro and in vivo. J Biomed Mater Res A 2014; 103:1940-8. [PMID: 25205627 DOI: 10.1002/jbm.a.35330] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 08/25/2014] [Accepted: 09/05/2014] [Indexed: 11/05/2022]
Abstract
CXCR4, the chemokine receptor for CXCL12, also known as SDF-1 (stromal cell derived factor-1), has been shown to play a pivotal role in bone metastasis, inflammatory, and autoimmune conditions but has not been investigated in periprosthetic osteolysis. We co-cultured osteoblast-like cells with increasing concentrations of metallic (Co-35Ni-20Cr-10Mo and Co-28Cr-6Mo) and Co-ions simulating wear debris. Real-time polymerase chain reaction (RT-PCR) and Western blotting were used to quantify gene and protein expression of CXCR4. The expression of tumor necrosis factor-alpha (TNF-α) and the effects of AMD3100 (bicyclam) on both CXCR4 and TNF-α expression among these cells was investigated. RT-PCR showed an increase in CXCR4 mRNA (7.5-fold for MG63 and 4.0-fold for SaOs-2 cells) among cells co-cultured with metal alloy particles. Western blotting showed a time-dependent increase in protein expression of CXCR4. The attempted blockade of CXCR4 by its known competitive receptor agonist AMD3100 led to a significant inhibition TNF-α mRNA expression. Immunohistochemistry showed CXCR4 positivity among patients with failed metal-on-metal hip replacements and radiographic evidence of osteolysis. Our data collectively suggest that the CXCR4 chemokine is upregulated in a dose- and time-dependent manner in the presence of metallic wear debris.
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Affiliation(s)
- Andreas Drynda
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
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92
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Engelmann R, Wang N, Kneitz C, Müller-Hilke B. Bone resorption correlates with the frequency of CD5⁺ B cells in the blood of patients with rheumatoid arthritis. Rheumatology (Oxford) 2014; 54:545-53. [PMID: 25193807 DOI: 10.1093/rheumatology/keu351] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE The prevention of bone resorption and subsequent joint destruction is one of the main challenges in the treatment of patients suffering from RA. Various mechanisms have previously been described that contribute to bone resorption in tightly defined cohorts. Here we analysed a cross-sectional cohort of RA patients and searched for humoral and cellular markers in the peripheral blood associated with bone resorption. METHODS We enrolled 61 consecutive RA patients positive for ACPA. Blood was analysed by flow cytometry to determine the percentages of regulatory T cells and B cell subpopulations. Cytokine (TNF-α, IL-6, IL-10) and ACPA levels as well as the bone resorption marker CTX-1 were determined from the patients' sera. Standard clinical disease parameters were included. RESULTS Multivariate analyses showed that the percentages of CD5(+) B cells were positively correlated with CTX-1 serum levels. However, neither low-avidity ACPA nor serum IL-6 levels, both known to be produced by CD5(+) cells, were associated with CTX-1 in patients' sera. There was no correlation between CTX-1 levels and clinical parameters or ACPA levels. CONCLUSION In summary, we found that the CD5(+) B cell population is associated with bone resorption as measured via serum CTX-1 levels in a cross-sectional cohort of RA patients. However, a possible functional link between CD5(+) B cells and bone resorption still needs to be defined.
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Affiliation(s)
- Robby Engelmann
- Institute of Immunology, Rostock University Medical Center, Rostock, Germany, Institute of Blood Research, Dalian Blood Center, Liaoning Province, China and Klinik für Innere Medizin II, Klinikum Südstadt Rostock, Rostock, Germany.
| | - Ni Wang
- Institute of Immunology, Rostock University Medical Center, Rostock, Germany, Institute of Blood Research, Dalian Blood Center, Liaoning Province, China and Klinik für Innere Medizin II, Klinikum Südstadt Rostock, Rostock, Germany. Institute of Immunology, Rostock University Medical Center, Rostock, Germany, Institute of Blood Research, Dalian Blood Center, Liaoning Province, China and Klinik für Innere Medizin II, Klinikum Südstadt Rostock, Rostock, Germany
| | - Christian Kneitz
- Institute of Immunology, Rostock University Medical Center, Rostock, Germany, Institute of Blood Research, Dalian Blood Center, Liaoning Province, China and Klinik für Innere Medizin II, Klinikum Südstadt Rostock, Rostock, Germany
| | - Brigitte Müller-Hilke
- Institute of Immunology, Rostock University Medical Center, Rostock, Germany, Institute of Blood Research, Dalian Blood Center, Liaoning Province, China and Klinik für Innere Medizin II, Klinikum Südstadt Rostock, Rostock, Germany
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93
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Infantino V, Iacobazzi V, Menga A, Avantaggiati ML, Palmieri F. A key role of the mitochondrial citrate carrier (SLC25A1) in TNFα- and IFNγ-triggered inflammation. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2014; 1839:1217-1225. [PMID: 25072865 DOI: 10.1016/j.bbagrm.2014.07.013] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 07/02/2014] [Accepted: 07/18/2014] [Indexed: 12/20/2022]
Abstract
The chronic induction of inflammation underlies multiple pathological conditions, including metabolic, autoimmune disorders and cancer. The mitochondrial citrate carrier (CIC), encoded by the SLC25A1 gene, promotes the export of citrate from the mitochondria to the cytoplasm, a process that profoundly influences energy balance in the cells. We have previously shown that SLC25A1 is a target gene for lipopolysaccharide signaling and promotes the production of inflammatory mediators. We now demonstrate that SLC25A1 is induced at the transcriptional level by two key pro-inflammatory cytokines, tumor necrosis factor-α (TNFα) and interferon-γ (IFNγ), and such induction involves the activity of the nuclear factor kappa B and STAT1 transcription factors. By studying the down-stream events following SLC25A1 activation during signals that mimic inflammation, we demonstrate that CIC is required for regulating the levels of nitric oxide and of prostaglandins by TNFα or IFNγ. Importantly, we show that the citrate exported from mitochondria via CIC and its downstream metabolic intermediate, acetyl-coenzyme A, are necessary for TNFα or IFNγ to induce nitric oxide and prostaglandin production. These findings provide the first line of evidence that the citrate export pathway, via CIC, is central for cytokine-induced inflammatory signals and shed new light on the relationship between energy metabolism and inflammation.
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Affiliation(s)
- Vittoria Infantino
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, via Orabona 4, 70125 Bari, Italy.,Department of Science, University of Basilicata, via N. Sauro 85, 85100 Potenza, Italy
| | - Vito Iacobazzi
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, via Orabona 4, 70125 Bari, Italy
| | - Alessio Menga
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, via Orabona 4, 70125 Bari, Italy
| | - Maria Laura Avantaggiati
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Ferdinando Palmieri
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, via Orabona 4, 70125 Bari, Italy
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Salamon A, Adam S, Rychly J, Peters K. Long-term tumor necrosis factor treatment induces NFκB activation and proliferation, but not osteoblastic differentiation of adipose tissue-derived mesenchymal stem cells in vitro. Int J Biochem Cell Biol 2014; 54:149-62. [PMID: 25066315 DOI: 10.1016/j.biocel.2014.07.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 07/16/2014] [Accepted: 07/17/2014] [Indexed: 01/08/2023]
Abstract
The pro-inflammatory cytokine tumor necrosis factor (TNF) is well known to induce differentiation of bone matrix-resorbing osteoclasts from hematopoietic stem cells. However, the impact of TNF on differentiation of bone matrix-forming osteoblasts from mesenchymal stem cells (MSC) was only fragmentarily studied so far. Therefore, we investigated what impact long-term TNF treatment has on osteoblastic differentiation of MSC isolated from the adipose tissue (ASC) in vitro. In summary, we found continuous TNF exposure to induce the nuclear factor of kappa B pathway in ASC as well as secretion of the pro-inflammatory chemokine interleukin 8, but not the mitogen-activated protein kinase and the apoptosis pathway in ASC. Moreover, TNF neither induced nor inhibited osteoblastic differentiation of ASC, but strongly increased their proliferation rate. In that manner, pro-inflammatory conditions in vivo may generate significantly increased numbers of progenitor cells, and ASC especially, in conjunction with external stimuli, may contribute to the events of ectopic ossification observed in chronic inflammatory diseases. The substantiation of the translation of our in vitro findings to the disease context encourages further in vivo studies.
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Affiliation(s)
- Achim Salamon
- Department of Cell Biology, Rostock University Medical Center, Schillingallee 69, D-18057 Rostock, Germany.
| | - Stefanie Adam
- Department of Cell Biology, Rostock University Medical Center, Schillingallee 69, D-18057 Rostock, Germany
| | - Joachim Rychly
- Department of Cell Biology, Rostock University Medical Center, Schillingallee 69, D-18057 Rostock, Germany
| | - Kirsten Peters
- Department of Cell Biology, Rostock University Medical Center, Schillingallee 69, D-18057 Rostock, Germany
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Therapeutic efficacy of vitamin E δ-tocotrienol in collagen-induced rat model of arthritis. BIOMED RESEARCH INTERNATIONAL 2014; 2014:539540. [PMID: 25114906 PMCID: PMC4119727 DOI: 10.1155/2014/539540] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 06/17/2014] [Accepted: 06/25/2014] [Indexed: 01/09/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic, systemic, inflammatory disease primarily involving inflammation of the joints. Although the management of the disease has advanced significantly in the past three decades, there is still no cure for RA. The aim of this study was to determine the therapeutic efficacy of δ-tocotrienol, in the rat model of collagen-induced arthritis (CIA). Arthritis was induced by intradermal injection of collagen type II emulsified in complete Freund's adjuvant. CIA rats were orally treated with δ-tocotrienol (10 mg/kg) or glucosamine hydrochloride (300 mg/kg) from day 25 to 50. Efficacy was assessed based on the ability to reduce paw edema, histopathological changes, suppression of collagen-specific T-cells, and a reduction in C-reactive protein (CRP) levels. It was established that δ-tocotrienol had the most significant impact in lowering paw edema when compared to glucosamine treatment. Paw edema changes correlated well with histopathological analysis where there was a significant reversal of changes in groups treated with δ-tocotrienol. The results suggest that δ-tocotrienol is efficient in amelioration of collagen-induced arthritis. Vitamin E delta-tocotrienol may be of therapeutic value against rheumatoid arthritis.
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96
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Osteoprotegerin (OPG) and Matrix Gla protein (MGP) in rheumatoid arthritis patients: Relation to disease activity. THE EGYPTIAN RHEUMATOLOGIST 2014. [DOI: 10.1016/j.ejr.2014.01.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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97
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A monoclonal antibody ameliorates local inflammation and osteoporosis by targeting TNF-α and RANKL. Int Immunopharmacol 2014; 20:370-6. [DOI: 10.1016/j.intimp.2014.03.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 03/14/2014] [Accepted: 03/26/2014] [Indexed: 12/12/2022]
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98
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Perez RS. Osteoprotegerin: Another piece in a complex (regional pain syndrome) puzzle. Pain 2014; 155:845-846. [DOI: 10.1016/j.pain.2014.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 02/06/2014] [Indexed: 11/27/2022]
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99
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Mogi M, Kondo A. The presence of RANKL-OPG complex in human osteosarcoma U2OS. J Immunoassay Immunochem 2014; 34:356-64. [PMID: 23859786 DOI: 10.1080/15321819.2012.741640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A sensitive sandwich enzyme-linked immunosorbent assay (ELISA) for the human receptor activator of nuclear factor κB (RANKL)-osteoprotegerin (OPG) complex was developed by utilizing a monoclonal antibody that recognizes human soluble RANKL as an immobilized capture component and biotinylated human OPG polyclonal antibody. We could quantify the RANKL-OPG complex level (detection limit: 100 pg/mL). Employing this assay system, we demonstrated that the RANKL-OPG complex was constitutively present in the conditioned medium of human osteoblastic sarcoma U2OS, although the complex was not detectable in other human osteoblastic sarcoma cell line, MG-63, HOS, and SaOS-2.
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Affiliation(s)
- Makio Mogi
- Department of Medicinal Biochemistry, School of Pharmacy, Aichi-Gakuin University, Nagoya, Japan.
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100
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Tsai CL, Chen WC, Hsieh HL, Chi PL, Hsiao LD, Yang CM. TNF-α induces matrix metalloproteinase-9-dependent soluble intercellular adhesion molecule-1 release via TRAF2-mediated MAPKs and NF-κB activation in osteoblast-like MC3T3-E1 cells. J Biomed Sci 2014; 21:12. [PMID: 24502696 PMCID: PMC3926355 DOI: 10.1186/1423-0127-21-12] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Accepted: 01/28/2014] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Matrix metalloproteinase-9 (MMP-9) has been shown to be induced by cytokines including TNF-α and may contribute to bone inflammatory diseases. However, the mechanisms underlying MMP-9 expression induced by TNF-α in MC3T3-E1 cells remain unclear. RESULTS We applied gelatin zymography, Western blot, RT-PCR, real-time PCR, selective pharmacological inhibitors of transcription (actinomycin D, Act.D), translation (cycloheximide, CHI), c-Src (PP1), MEK1/2 (U0126), p38 MAPK (SB202190), JNK1/2 (SP600125), and NF-κB (Bay11-7082), respective siRNAs transfection, promoter assay, immunofluorescence staining, and ELISA to investigate the MMP-9 expression and soluble ICAM-1 (sICAM-1) release induced by TNF-α in MC3T3-E1 cells. Here we demonstrated that TNF-α-induced MMP-9 expression was attenuated by Act.D, CHI, PP1, U0126, SB202190, SP600125, and Bay11-7082, and by the transfection with siRNAs for ERK2, p38 MAPK, and JNK2. TNF-α-stimulated TNFR1, TRAF2, and c-Src complex formation was revealed by immunoprecipitation and Western blot. Furthermore, TNF-α-stimulated NF-κB phosphorylation and translocation were blocked by Bay11-7082, but not by PP1, U0126, SB202190, or SP600125. TNF-α time-dependently induced MMP-9 promoter activity which was also inhibited by PP1, U0126, SB202190, SP600125, or Bay11-7082. Up-regulation of MMP-9 was associated with the release of sICAM-1 into the cultured medium, which was attenuated by the pretreatment with MMP-2/9i, an MMP-9 inhibitor. CONCLUSIONS In this study, we demonstrated that TNF-α up-regulates MMP-9 expression via c-Src, MAPKs, and NF-κB pathways. In addition, TNF-α-induced MMP-9 expression may contribute to the production of sICAM-1 by MC3T3-E1 cells. The interplay between MMP-9 expression and sICAM-1 release may exert an important role in the regulation of bone inflammatory diseases.
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Affiliation(s)
| | | | | | | | | | - Chuen-Mao Yang
- Department of Physiology and Pharmacology and Health Ageing Research Center, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan.
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