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Karnik SJ, Margetts TJ, Wang HS, Movila A, Oblak AL, Fehrenbacher JC, Kacena MA, Plotkin LI. Mind the Gap: Unraveling the Intricate Dance Between Alzheimer's Disease and Related Dementias and Bone Health. Curr Osteoporos Rep 2024; 22:165-176. [PMID: 38285083 PMCID: PMC10912190 DOI: 10.1007/s11914-023-00847-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/19/2023] [Indexed: 01/30/2024]
Abstract
PURPOSE OF REVIEW This review examines the linked pathophysiology of Alzheimer's disease/related dementia (AD/ADRD) and bone disorders like osteoporosis. The emphasis is on "inflammaging"-a low-level inflammation common to both, and its implications in an aging population. RECENT FINDINGS Aging intensifies both ADRD and bone deterioration. Notably, ADRD patients have a heightened fracture risk, impacting morbidity and mortality, though it is uncertain if fractures worsen ADRD. Therapeutically, agents targeting inflammation pathways, especially Nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kB) and TNF-α, appear beneficial for both conditions. Additionally, treatments like Sirtuin 1 (SIRT-1), known for anti-inflammatory and neuroprotective properties, are gaining attention. The interconnectedness of AD/ADRD and bone health necessitates a unified treatment approach. By addressing shared mechanisms, we can potentially transform therapeutic strategies, enriching our understanding and refining care in our aging society. This review article is part of a series of multiple manuscripts designed to determine the utility of using artificial intelligence for writing scientific reviews.
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Affiliation(s)
- Sonali J Karnik
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Tyler J Margetts
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Hannah S Wang
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Alexandru Movila
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, 46202, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Adrian L Oblak
- Department of Radiology & Imaging Sciences, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Jill C Fehrenbacher
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Melissa A Kacena
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA.
- Richard L. Roudebush VA Medical Center, Indianapolis, IN, 46202, USA.
| | - Lilian I Plotkin
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA.
- Richard L. Roudebush VA Medical Center, Indianapolis, IN, 46202, USA.
- Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
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Liu K, Wang Z, Liu J, Zhao W, Qiao F, He Q, Shi J, Meng Q, Wei J, Cheng L. Atsttrin regulates osteoblastogenesis and osteoclastogenesis through the TNFR pathway. Commun Biol 2023; 6:1251. [PMID: 38081906 PMCID: PMC10713527 DOI: 10.1038/s42003-023-05635-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Osteoporosis is a systemic metabolic bone disorder for which inflammatory cytokines play an important role. To develop new osteoporosis treatments, strategies for improving the microenvironment for osteoblast and osteoclast balance are needed. Tumor necrosis factor-α (TNF-α) plays an important role in the initiation and development of osteoporosis. Atsttrin is an engineered protein derived from the growth factor, progranulin (PGRN). The present study investigates whether Atsttrin affects osteoclast formation and osteoblast formation. Here we show Atsttrin inhibits TNF-α-induced osteoclastogenesis and inflammation. Further mechanistic investigation indicates Atsttrin inhibits TNF-α-induced osteoclastogenesis through the TNFR1 signaling pathway. Moreover, Atsttrin rescues TNF-α-mediated inhibition of osteoblastogenesis via the TNFR1 pathway. Importantly, the present study indicates that while Atsttrin cannot directly induce osteoblastogenesis, it can significantly enhance osteoblastogenesis through TNFR2-Akt-Erk1/2 signaling. These results suggest that Atsttrin treatment could potentially be a strategy for maintaining proper bone homeostasis by regulating the osteoclast/osteoblast balance. Additionally, these results provide new insights for other bone metabolism-related diseases.
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Affiliation(s)
- Kaiwen Liu
- Department of Orthopedic, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Zihao Wang
- Department of Orthopedic, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Jinbo Liu
- Department of Orthopedic, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Wei Zhao
- Department of Orthopedic, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Fei Qiao
- Department of Orthopedic, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
- Department of Pediatric Orthopedic, Dalian Women and Children's Medical Center(group), Dalian, Liaoning, 116012, China
| | - Qiting He
- Department of Orthopedics, Honghui Hospital, Xian Jiaotong University, Xian, Shanxi, 710054, China
| | - Jie Shi
- Department of Orthopedic, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Qunbo Meng
- Department of Orthopedic, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Jianlu Wei
- Department of Orthopedic, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China.
| | - Lei Cheng
- Department of Orthopedic, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China.
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Biedroń G, Czepiel M, Siedlar M, Korkosz M. Serum concentration of dickkopf-related protein 1 (DKK1) in psoriatic arthritis in the context of bone remodelling. Rheumatol Int 2023; 43:2175-2183. [PMID: 37750896 PMCID: PMC10587027 DOI: 10.1007/s00296-023-05452-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 08/30/2023] [Indexed: 09/27/2023]
Abstract
Psoriatic arthritis (PsA) is a chronic inflammatory disease, characterised by the pathological occurrence of two opposite phenomena-osteoresorption and osteogenesis. Dickkopf-related protein 1 (DKK1) which inhibits the Wingless protein (Wnt) signalling pathway has been shown to be a master regulator of bone remodeling in inflammatory rheumatic diseases. However, the exact relationship between DKK1 serum level and bone remodelling is not clear. The goal of this study is to review state-of-the-art knowledge on the association of serum DKK1 with a bone remodelling in PsA. The MEDLINE-PubMed, EMBASE, Scopus, Web of Science and DOAJ databases were searched for appropriate papers. The English terms: 'DKK1', 'Dickkopf-1' 'Dickkopf related protein 1', 'psoriatic arthritis' and 'PsA' were used for search purposes. Eight original articles and two reviews were identified up to August 2023. In four out of 8 discussed studies DKK1 serum level was higher in PsA patients than in healthy controls [Dalbeth, p < 0.01; Diani, p < 0.001; Chung, p < 0.01; Abd el Hamid, p < 0.001)], it was comparable in another (Daousiss, p = 0.430) and was lower in two (Fassio2017, p < 0.05; Fassio2019, p < 0.05). In one study, the comparative groups included patients with axial spondyloarthritis, where DKK1 serum levels were lower in PsA groups [Jadon, peripheral PsA, p = 0.01]. The true relative serum concentration of DKK1 in PsA, as well as its influence on osteogenesis and osteoresorption, is still equivocal. Further studies on this matter with consistent and stringent methodology are warranted.
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Affiliation(s)
- Grzegorz Biedroń
- Department of Rheumatology and Immunology, Jagiellonian University Medical College, Jakubowskiego 2, Krakow, Poland
| | - Marcin Czepiel
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Maciej Siedlar
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Mariusz Korkosz
- Department of Rheumatology and Immunology, Jagiellonian University Medical College, Jakubowskiego 2, Krakow, Poland
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Szeremeta A, Jura-Półtorak A, Zoń-Giebel A, Olczyk K, Komosińska-Vassev K. Effects of Etanercept and Adalimumab on Serum Levels of Cartilage Remodeling Markers in Women with Rheumatoid Arthritis. J Clin Med 2023; 12:5185. [PMID: 37629227 PMCID: PMC10455345 DOI: 10.3390/jcm12165185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/31/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Tumor necrosis factor α inhibitor (TNFαI) therapy is associated with a significant inhibition of radiographic progression, resulting in improved physical function and quality of life among patients with rheumatoid arthritis (RA). The mechanism by which TNFαI prevent joint destruction is still unknown. In this study, the effect of 15-month anti-TNF-α therapy in combination with methotrexate on circulating levels of biochemical markers of cartilage turnover in female RA patients was assessed. Serum levels of collagen type II C-terminal cleavage neoepitope (C2C), C-terminal propeptide of type II collagen (PIICP), cartilage oligomeric matrix protein (COMP), and matrix metalloproteinase-3 (MMP-3) were evaluated using immunoassays at baseline and 15 months after the start of TNFαI treatment. Baseline COMP, C2C, and MMP-3 levels and C2C/PIICP ratios were significantly higher in women with RA compared with those observed in the healthy subjects. No differences in PIICP levels between the controls and the women with RA were observed. After 15 months of TNFαI treatment, serum levels of C2C, COMP, and MMP-3 decreased, whereas the levels of PIICP increased but were still not different from those of the controls. These changes were accompanied by significantly reduced C2C/PIICP ratios. Before the start of TNFαI therapy, serum levels of COMP significantly correlated with the patients' ages (p < 0.05) and their 28-joint disease activity score values based on their erythrocyte sedimentation rates (DAS28-ESR; p < 0.05). Moreover, multiple linear regression analysis showed that baseline COMP levels retained a significant association with DAS28-ESR value (β = 287.74, p = 0.022, R2 model = 0.25) after model adjustments. The largest area under the ROC curve was obtained for C2C/PIICP ratios (AUC: 0.830, 95% CI: 0.727-0.932, p < 0.001). Our results suggest that long-term anti-TNF-α therapy combined with MTX has a beneficial effect on cartilage remodeling that is associated with clinical improvement among RA patients. Serum C2C/PIICP ratios may help to monitor the effectiveness of anti-TNF-α treatment among RA patients.
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Affiliation(s)
- Anna Szeremeta
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Katowice, Jedności 8, 41-200 Sosnowiec, Poland; (A.J.-P.); (K.O.); (K.K.-V.)
| | - Agnieszka Jura-Półtorak
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Katowice, Jedności 8, 41-200 Sosnowiec, Poland; (A.J.-P.); (K.O.); (K.K.-V.)
| | - Aleksandra Zoń-Giebel
- Department of Rheumatology and Rehabilitation, Specialty Hospital No. 1, Żeromskiego 7, 41-902 Bytom, Poland;
| | - Krystyna Olczyk
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Katowice, Jedności 8, 41-200 Sosnowiec, Poland; (A.J.-P.); (K.O.); (K.K.-V.)
| | - Katarzyna Komosińska-Vassev
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Katowice, Jedności 8, 41-200 Sosnowiec, Poland; (A.J.-P.); (K.O.); (K.K.-V.)
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Di Martino A, Ursini F, Bordini B, Ancarani C, Ciaffi J, Brunello M, D'Agostino C, Faldini C. Perioperative treatment with TNF inhibitors does not affect survival of total hip arthroplasty in inflammatory arthritis: a registry-based cohort study. Semin Arthritis Rheum 2023; 60:152201. [PMID: 37028127 DOI: 10.1016/j.semarthrit.2023.152201] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 03/04/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023]
Abstract
OBJECTIVES Aim of this study was to investigate the effect of perioperative exposure to TNF inhibitors (TNFi) on the long-term survival of total hip arthroplasty (THA) in inflammatory arthritis patients from a large regional register of arthroplasty procedures (RIPO). METHODS This study is a retrospective analysis of data from RIPO for THAs performed between 2008 and 2019. After extraction of the procedures of interest from the RIPO dataset, cross-matching with administrative databases were used to identify patients with rheumatoid arthritis (RA), psoriatic arthritis (PsA), ankylosing spondylitis (AS), primary osteoarthritis (OA), and treatments of interest. Three different cohorts of patients were identified: perioperative TNFi-treated patients (6 months before or after the surgery), perioperative non-bDMARD/tsDMARD (biologic or targeted-synthetic disease modifying antirheumatic drugs), and OA. RESULTS At an average follow-up of 5 years, survival rates (using any revision surgery as an endpoint) were not significantly different when perioperative TNFi users and non-bDMARD/tsDMARD patients were compared (p = 0.713), and between TNFi-treated and OA controls (p = 0.123). At the latest available follow-up, 2.5% patients in the TNFi cohort, 3% in the non-bDMARD/tsDMARD cohort, and 0.8% in the OA cohort underwent revision surgery. No significant differences were found comparing the risk of postoperative infection or aseptic loosening among groups. CONCLUSION Risk of revision surgery is not increased in patients with inflammatory arthritis perioperatively exposed to TNFi. Our results support the long-term safety of this class of molecules on survival of prosthetic implants.
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Affiliation(s)
- Alberto Di Martino
- 1st Orthopedic and Traumatology Department, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy; Department of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Francesco Ursini
- Department of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater Studiorum University of Bologna, Bologna, Italy; Medicine & Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.
| | - Barbara Bordini
- Medical Technology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Cristina Ancarani
- Medical Technology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Jacopo Ciaffi
- Medicine & Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Matteo Brunello
- 1st Orthopedic and Traumatology Department, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy; Department of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Claudio D'Agostino
- 1st Orthopedic and Traumatology Department, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy; Department of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Cesare Faldini
- 1st Orthopedic and Traumatology Department, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy; Department of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater Studiorum University of Bologna, Bologna, Italy
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Ding P, Tan Q, Wei Z, Chen Q, Wang C, Qi L, Wen L, Zhang C, Yao C. Toll-like receptor 9 deficiency induces osteoclastic bone loss via gut microbiota-associated systemic chronic inflammation. Bone Res 2022; 10:42. [PMID: 35624094 PMCID: PMC9142495 DOI: 10.1038/s41413-022-00210-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 02/06/2022] [Accepted: 03/13/2022] [Indexed: 02/08/2023] Open
Abstract
Toll-like receptors (TLRs) play pivotal roles in inflammation and provide important links between the immune and skeletal systems. Although the activation of TLRs may affect osteoclast differentiation and bone metabolism, whether and how TLRs are required for normal bone remodeling remains to be fully explored. In the current study, we show for the first time that TLR9-/- mice exhibit a low bone mass and low-grade systemic chronic inflammation, which is characterized by the expansion of CD4+ T cells and increased levels of inflammatory cytokines, including TNFα, RANKL, and IL1β. The increased levels of these cytokines significantly promote osteoclastogenesis and induce bone loss. Importantly, TLR9 deletion alters the gut microbiota, and this dysbiosis is the basis of the systemic inflammation and bone loss observed in TLR9-/- mice. Furthermore, through single-cell RNA sequencing, we identified myeloid-biased hematopoiesis in the bone marrow of TLR9-/- mice and determined that the increase in myelopoiesis, likely caused by the adaptation of hematopoietic stem cells to systemic inflammation, also contributes to inflammation-induced osteoclastogenesis and subsequent bone loss in TLR9-/- mice. Thus, our study provides novel evidence that TLR9 signaling connects the gut microbiota, immune system, and bone and is critical in maintaining the homeostasis of inflammation, hematopoiesis, and bone metabolism under normal conditions.
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Affiliation(s)
- Peng Ding
- Department of Orthopedic Surgery, Shanghai Jiaotong University affiliated Sixth People's Hospital, Shanghai, China
| | - Qiyuan Tan
- Department of Endocrinology and Metabolism, Shanghai Jiaotong University affiliated Sixth People's Hospital, Shanghai, China
| | - Zhanying Wei
- Department of Osteoporosis and Skeletal Disorders, Shanghai Jiaotong University affiliated Sixth People's Hospital, Shanghai, China
| | - Qiyu Chen
- Department of Orthopedic Surgery, Shanghai Jiaotong University affiliated Sixth People's Hospital, Shanghai, China
| | - Chun Wang
- Department of Osteoporosis and Skeletal Disorders, Shanghai Jiaotong University affiliated Sixth People's Hospital, Shanghai, China
| | - Luyue Qi
- Department of Endocrinology and Metabolism, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Li Wen
- Section of Endocrinology, Department of Internal Medicine, Yale University School of Medicine, New Haven, USA
| | - Changqing Zhang
- Department of Orthopedic Surgery, Shanghai Jiaotong University affiliated Sixth People's Hospital, Shanghai, China.
| | - Chen Yao
- Department of Orthopedic Surgery, Shanghai Jiaotong University affiliated Sixth People's Hospital, Shanghai, China.
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Nishal S, Jhawat V, Phaugat P, Dutt R. Rheumatoid Arthritis and JAK-STAT Inhibitors: Prospects of Topical Delivery. CURRENT DRUG THERAPY 2022. [DOI: 10.2174/1574885517666220329185842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
Rheumatoid arthritis (RA) is the most common musculoskeletal disease in the world. The clinical prospects have increased tremendously since the advent of biological agents as therapy options. NSAIDs such as indomethacin, celecoxib, and etoricoxib are used often in the treatment of RA but off-target effects decreased their use. DMARDs such as methotrexate and etanercept were also effective in the treatment of RA, but tolerance to methotrexate developed in many cases. Janus kinase inhibitors (JAKi) have also gained popularity as a treatment option for rheumatoid arthritis. Tofacitinib is the foremost JAK inhibitor that is used to treat RA as an individual agent or in combination with other DMARDs. The most frequently used route of administration for JAKi is oral. Since oral formulations of JAK inhibitors have a number of health hazards, such as systemic toxicity and patient noncompliance, topical formulations of JAK inhibitors have emerged as a preferable alternative for administering JAK inhibitors. Tofacitinib delivered topically, seems to have the potential to eliminate or reduce the occurrences of negative effects when compared to tofacitinib taken orally. Given the scarcity of knowledge on the techniques for topical distribution of JAKi, more effort will be required to develop a stable topical formulation of JAKi to address the limitations of oral route. The current review looks at JAK inhibitors and the ways that have been used to generate topical formulations of them.
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Affiliation(s)
- Suchitra Nishal
- School of Medical and Allied Sciences, GD Goenka University, Gurugram, India
| | - Vikas Jhawat
- School of Medical and Allied Sciences, GD Goenka University, Gurugram, India
| | - Parmita Phaugat
- School of Medical and Allied Sciences, GD Goenka University, Gurugram, India
| | - Rohit Dutt
- School of Medical and Allied Sciences, GD Goenka University, Gurugram, India
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Ismail ZNE. Evaluation of fracture risk in Egyptian rheumatoid arthritis patients by the Fracture Risk Assessment Tool. EGYPTIAN RHEUMATOLOGY AND REHABILITATION 2022. [DOI: 10.1186/s43166-021-00101-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Rheumatoid arthritis (RA) patients have a risk of fractures due to secondary osteoporosis. This study aimed to evaluate the probability of fractures in the next 10 years in Egyptian RA patients by the Fracture Risk Assessment Tool (FRAX).
Results
The study was a case–control study. It included a hundred RA patients as well as 51 apparently healthy volunteers. Bone mineral density (BMD) means of lumbar vertebra, femoral neck, and total femur were significantly lower in the RA patient group. Additionally, FRAX of the major osteoporotic and hip fractures means were significantly higher in the RA group than in the control group. It was also found that age, body mass index (BMI), Health Assessment Questionnaire Disability Index (HAQ-DI), and BMD of the femoral neck were significant predictors of FRAX of major osteoporotic and hip fractures (P ≤ 0.05). The cumulative dose of steroids was a significant predictor for FRAX of major osteoporotic fractures; however, the 28 joints disease activity score calculated with erythrocyte sedimentation rate (ESR) (DAS28-ESR) was a significant predictor for FRAX of hip fractures.
Conclusions
RA patients have a high fracture risk probability. Regular annual screening for BMD and FRAX of major osteoporotic and hip fractures is necessary for those patients.
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Regulation of TNF-Induced Osteoclast Differentiation. Cells 2021; 11:cells11010132. [PMID: 35011694 PMCID: PMC8750957 DOI: 10.3390/cells11010132] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/24/2021] [Accepted: 12/28/2021] [Indexed: 12/27/2022] Open
Abstract
Increased osteoclast (OC) differentiation and activity is the critical event that results in bone loss and joint destruction in common pathological bone conditions, such as osteoporosis and rheumatoid arthritis (RA). RANKL and its decoy receptor, osteoprotegerin (OPG), control OC differentiation and activity. However, there is a specific concern of a rebound effect of denosumab discontinuation in treating osteoporosis. TNFα can induce OC differentiation that is independent of the RANKL/RANK system. In this review, we discuss the factors that negatively and positively regulate TNFα induction of OC formation, and the mechanisms involved to inform the design of new anti-resorptive agents for the treatment of bone conditions with enhanced OC formation. Similar to, and being independent of, RANKL, TNFα recruits TNF receptor-associated factors (TRAFs) to sequentially activate transcriptional factors NF-κB p50 and p52, followed by c-Fos, and then NFATc1 to induce OC differentiation. However, induction of OC formation by TNFα alone is very limited, since it also induces many inhibitory proteins, such as TRAF3, p100, IRF8, and RBP-j. TNFα induction of OC differentiation is, however, versatile, and Interleukin-1 or TGFβ1 can enhance TNFα-induced OC formation through a mechanism which is independent of RANKL, TRAF6, and/or NF-κB. However, TNFα polarized macrophages also produce anabolic factors, including insulin such as 6 peptide and Jagged1, to slow down bone loss in the pathological conditions. Thus, the development of novel approaches targeting TNFα signaling should focus on its downstream molecules that do not affect its anabolic effect.
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Yi X, Liu X, Kenney HM, Duan R, Lin X, Schwarz E, Yao Z. TNF-Polarized Macrophages Produce Insulin-like 6 Peptide to Stimulate Bone Formation in Rheumatoid Arthritis in Mice. J Bone Miner Res 2021; 36:2426-2439. [PMID: 34585777 PMCID: PMC8688308 DOI: 10.1002/jbmr.4447] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 09/01/2021] [Accepted: 09/22/2021] [Indexed: 01/05/2023]
Abstract
The risk of osteoporosis is increased in rheumatoid arthritis (RA). Anti-tumor necrosis factor (TNF) therapy has markedly improved the outcomes of RA patients but does not improve osteoporosis in some reports. This could be a combined result of disease severity and other therapeutic agents, such as glucocorticoids that accelerate osteoporosis progression. We evaluated the effects of anti-TNF therapy on osteoporosis in an animal model of RA and explored the possible mechanisms involved. Six-week-old TNF transgenic (TNF-Tg) mice with early stage erosive arthritis were treated with TNF antibody (Ab) or control immunoglobulin (IgG) weekly for 4 weeks. We found that TNF Ab completely blocked the development of erosive arthritis in TNF-Tg mice, but only slightly increased vertebral bone mass, associated with reduction in parameters of both bone resorption and formation. Similarly, TNF Ab slightly increased trabecular bone mass in tibias of 8-month-old TNF-Tg mice with advanced erosive arthritis. Interestingly, TNFα increased osteoblast differentiation from mouse bone marrow stromal cells (BMSCs) containing large number of macrophages but not from pure mesenchymal progenitor cells (MPCs). TNFα-polarized macrophages (TPMs) did not express iNos and Arginase 1, typical markers of inflammatory and resident macrophages. Interestingly, TPMs stimulated osteoblast differentiation, unlike resident and inflammatory macrophages polarized by IL-4 and interferon-λ, respectively. RNA-seq analysis indicated that TPMs produced several anabolic factors, including Jagged1 and insulin like 6 (INSL6). Importantly, inhibition of either Jagged1 or INSL6 blocked TNFα-induced osteoblast differentiation. Furthermore, INSL6 Ab significantly decreased the expansion of TNF-induced MPCs in BMSCs, and anti-TNF Ab reduced INSL6 expression by macrophages in vitro and in TNF-Tg mice in vivo. We conclude that TPMs produce INSL6 to stimulate bone formation and anti-TNF Ab blocks not only enhanced bone resorption but also the anabolic effect of TPMs on bone, limiting its effect to increase bone mass in this model of RA. © 2021 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Xiangjiao Yi
- Department of Pathology and Laboratory Medicine, Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Xin Liu
- Department of Pathology and Laboratory Medicine, Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - H Mark Kenney
- Department of Pathology and Laboratory Medicine, Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Rong Duan
- Department of Pathology and Laboratory Medicine, Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Xi Lin
- Department of Pathology and Laboratory Medicine, Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Edward Schwarz
- Department of Pathology and Laboratory Medicine, Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.,Department of Orthopedic Surgery, Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Zhenqiang Yao
- Department of Pathology and Laboratory Medicine, Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
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Novelli L, Lubrano E, Venerito V, Perrotta FM, Marando F, Curradi G, Iannone F. Extra-Articular Manifestations and Comorbidities in Psoriatic Disease: A Journey Into the Immunologic Crosstalk. Front Med (Lausanne) 2021; 8:737079. [PMID: 34631754 PMCID: PMC8495009 DOI: 10.3389/fmed.2021.737079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 08/26/2021] [Indexed: 12/18/2022] Open
Abstract
Psoriatic arthritis (PsA) is a chronic inflammatory disease primarily affecting peripheral and axial joints, with the possible presence of extra-articular manifestations (EAMs), such as psoriasis, uveitis, and inflammatory bowel disease. Recently, the concept of psoriatic disease (PsD) has been proposed to define a systemic condition encompassing, in addition to joints and EAMs, some comorbidities (e.g., metabolic syndrome, type II diabetes, hypertension) that can affect the disease outcome and the achievement of remission. EAMs and comorbidities in PsA share common immunopathogenic pathways linked to the systemic inflammation of this disease; these involve a broad variety of immune cells and cytokines. Currently, various therapeutics are available targeting different cytokines and molecules implicated in the inflammatory response of this condition; however, despite an improvement in the management of PsA, comprehensive disease control is often not achievable. There is, therefore, a big gap to fill especially in terms of comorbidities and EAMs management. In this review, we summarize the clinical aspects of the main comorbidities and EAMs in PsA, and we focus on the immunopathologic features they share with the articular manifestations. Moreover, we discuss the effect of a diverse immunomodulation and the current unmet needs in PsD.
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Affiliation(s)
| | - Ennio Lubrano
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, Campobasso, Italy
| | - Vincenzo Venerito
- Rheumatology Unit-Department of Emergency and Organ Transplantations, University of Bari "Aldo Moro", Bari, Italy
| | - Fabio Massimo Perrotta
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, Campobasso, Italy
| | | | | | - Florenzo Iannone
- Rheumatology Unit-Department of Emergency and Organ Transplantations, University of Bari "Aldo Moro", Bari, Italy
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12
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Volumetric Bone Mineral Density Measured by HR-pQCT in Patients with Psoriasis or Psoriatic Arthritis: A Systematic Review and Meta-Analysis with Trial Sequential Analysis. Healthcare (Basel) 2021; 9:healthcare9081056. [PMID: 34442193 PMCID: PMC8393585 DOI: 10.3390/healthcare9081056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/12/2021] [Accepted: 08/13/2021] [Indexed: 12/20/2022] Open
Abstract
Bone health in psoriasis and psoriatic arthritis has been emphasized in recent years. Novel imaging modalities allow investigations into volumetric bone mineral density (vBMD) and bone microstructure in psoriatic patients. However, literature regarding vBMD measured by high-resolution peripheral quantitative computed tomography (HR-pQCT) is inconclusive. We conducted a systematic review and meta-analysis to evaluate vBMD in patients with psoriatic disease. We searched PubMed, EMBASE, Web of Science, and Cochrane Library for relevant observational studies. A random-effects meta-analysis with trial sequential analysis (TSA) was performed. The pooled mean difference (MD) and 95% confidence interval (CI) were calculated. Five studies with 780 patients were included. Patients with psoriatic disease showed a lower average vBMD than controls (MD -14.90; 95% CI -22.90 to -6.89; TSA-adjusted CI -23.77 to -6.03; I2 = 41%). Trabecular vBMD and cortical vBMD results were inconclusive because of the small sample size. Patients recruited in Asia and those whose vBMD were measured at the distal radius exhibited a lower average vBMD than controls. Further research should clarify the association of psoriasis with bone microstructure and the underlying pathophysiology.
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13
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Wu D, Cline-Smith A, Shashkova E, Perla A, Katyal A, Aurora R. T-Cell Mediated Inflammation in Postmenopausal Osteoporosis. Front Immunol 2021; 12:687551. [PMID: 34276675 PMCID: PMC8278518 DOI: 10.3389/fimmu.2021.687551] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/04/2021] [Indexed: 12/11/2022] Open
Abstract
Osteoporosis is the most prevalent metabolic bone disease that affects half the women in the sixth and seventh decade of life. Osteoporosis is characterized by uncoupled bone resorption that leads to low bone mass, compromised microarchitecture and structural deterioration that increases the likelihood of fracture with minimal trauma, known as fragility fractures. Several factors contribute to osteoporosis in men and women. In women, menopause - the cessation of ovarian function, is one of the leading causes of primary osteoporosis. Over the past three decades there has been growing appreciation that the adaptive immune system plays a fundamental role in the development of postmenopausal osteoporosis, both in humans and in mouse models. In this review, we highlight recent data on the interactions between T cells and the skeletal system in the context of postmenopausal osteoporosis. Finally, we review recent studies on the interventions to ameliorate osteoporosis.
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Affiliation(s)
| | | | | | | | | | - Rajeev Aurora
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, United States
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14
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Jura-Półtorak A, Szeremeta A, Olczyk K, Zoń-Giebel A, Komosińska-Vassev K. Bone Metabolism and RANKL/OPG Ratio in Rheumatoid Arthritis Women Treated with TNF-α Inhibitors. J Clin Med 2021; 10:jcm10132905. [PMID: 34209821 PMCID: PMC8267676 DOI: 10.3390/jcm10132905] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/23/2021] [Accepted: 06/28/2021] [Indexed: 02/07/2023] Open
Abstract
The aim of this study was to evaluate the effect of anti-tumor necrosis factor α (anti-TNF-α) therapy in combination with methotrexate on bone remodeling and osteoclastogenesis in female patients with RA. Serum levels of bone turnover markers (i.e., C- and N-terminal propeptides of type I procollagen (PICP and PINP), C- and N-terminal cross-linking telopeptides of type I collagen (CTX-I and NTX-I), and soluble receptor activator of nuclear factor κB ligand (sRANKL) and osteoprotegerin (OPG)) were determined by immunoassay at baseline and 15 months after initiation of treatment. Bone mineral density was measured by dual-energy x-ray absorptiometry. We found a significant decrease in serum PINP levels, a biomarker of bone formation, and higher levels of CTX-I and sRANKL indicative of increased bone resorption in RA patients prior to TNFαI treatment compared to the controls. Anti-TNF-α therapy was effective in improving bone metabolism in RA patients as reflected in a decrease in CTX-I (at least partially due to the RANKL/OPG reduction) and a concomitant increase in PINP levels. The bone metabolism changes were independent of the type of TNFαI used. PINP and CTX-I were found to be useful markers of bone metabolism, which may prove the effectiveness of TNF-α therapy earlier than the bone density assessment.
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Affiliation(s)
- Agnieszka Jura-Półtorak
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Katowice, 41-200 Sosnowiec, Poland; (A.S.); (K.O.); (K.K.-V.)
- Correspondence: ; Tel.: +48-32-364-11-50
| | - Anna Szeremeta
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Katowice, 41-200 Sosnowiec, Poland; (A.S.); (K.O.); (K.K.-V.)
| | - Krystyna Olczyk
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Katowice, 41-200 Sosnowiec, Poland; (A.S.); (K.O.); (K.K.-V.)
| | - Aleksandra Zoń-Giebel
- Silesian Center of Rheumatology, Rehabilitation and Prevention of Disability of Gen. Jerzy Ziętek in Ustroń, 43-450 Ustroń, Poland;
| | - Katarzyna Komosińska-Vassev
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Katowice, 41-200 Sosnowiec, Poland; (A.S.); (K.O.); (K.K.-V.)
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15
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Chen JF, Hsu CY, Yu SF, Ko CH, Chiu WC, Lai HM, Chen YC, Su YJ, Cheng TT. The impact of long-term biologics/target therapy on bone mineral density in rheumatoid arthritis: a propensity score-matched analysis. Rheumatology (Oxford) 2021; 59:2471-2480. [PMID: 31984422 PMCID: PMC7449814 DOI: 10.1093/rheumatology/kez655] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/29/2019] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVES To investigate changes in BMD in RA patients receiving 3-year biological/targeted synthetic disease-modifying antirheumatic drugs (b/tsDMARD) or conventional synthetic DMARD (csDMARD). METHODS Patients with RA were recruited from September 2014 until March 2019. Clinical characteristics, BMD and evidence of fragility fractures at enrolment were documented. Participants were treated according to the National Institute for Health and Care Excellence (NICE) guidelines over a 3-year observation period. Repeated BMD was measured at the end of the study period. Participants were grouped into those receiving b/tsDMARD or csDMARD and by propensity score matching (1:2). RESULTS A total of 388 participants completed the 3-year follow-up. After propensity score matching, 92 and 184 participants were allocated to the b/tsDMARD (Group I) and csDMARD (Group II), respectively. After 3 years, BMD remained stable at the femoral neck (FN), hip (total) (TH) and lumbar vertebra (L1-4) (P =0.09, 0.15, 0.87) in Group I. However, BMD decreased significantly in Group II (P=0.045, <0.001, 0.004) at corresponding sites. Participants receiving combined b/tsDMARD and anti-osteoporosis therapy experienced a greater BMD preserving effect than other subgroups. CONCLUSION Long-term b/tsDMARDs therapy had protective effects on bone loss for patients with RA. Patients receiving concomitant anti-osteoporosis therapy and b/tsDMARDs therapy experienced the greatest BMD preserving effect.
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Affiliation(s)
- Jia-Feng Chen
- Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital Kaohsiung, Taiwan.,Department of Internal Medicine, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chung-Yuan Hsu
- Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital Kaohsiung, Taiwan.,Department of Internal Medicine, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Shan-Fu Yu
- Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital Kaohsiung, Taiwan.,Department of Internal Medicine, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chi-Hua Ko
- Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital Kaohsiung, Taiwan
| | - Wen-Chan Chiu
- Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital Kaohsiung, Taiwan
| | - Han-Ming Lai
- Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital Kaohsiung, Taiwan
| | - Ying-Chou Chen
- Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital Kaohsiung, Taiwan.,Department of Internal Medicine, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yu-Jih Su
- Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital Kaohsiung, Taiwan.,Department of Internal Medicine, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Tien-Tsai Cheng
- Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital Kaohsiung, Taiwan.,Department of Internal Medicine, Chang Gung University College of Medicine, Kaohsiung, Taiwan
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16
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Liu Z, Li C, Huang P, Hu F, Jiang M, Xu X, Li B, Deng L, Ye T, Guo L. CircHmbox1 Targeting miRNA-1247-5p Is Involved in the Regulation of Bone Metabolism by TNF-α in Postmenopausal Osteoporosis. Front Cell Dev Biol 2020; 8:594785. [PMID: 33425899 PMCID: PMC7786182 DOI: 10.3389/fcell.2020.594785] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 12/07/2020] [Indexed: 01/03/2023] Open
Abstract
Tumor necrosis factor-alpha (TNF-α) promotes osteoclasts differentiation to enhance bone resorption and inhibits osteoblasts differentiation to impair bone formation, which plays a central role in the development of postmenopausal osteoporosis (PMOP). Recent studies implicated an important role of circular RNAs (circRNAs) in osteoporosis. The purpose of this study is to investigate whether circRNAs might be implicated in TNF-α-regulated osteoclasts differentiation and osteoblasts differentiation in PMOP. QRT-PCR was applied to detect expression of circRNA-circHmbox1 and miR-1247-5p in TNF-α-induced osteoclasts differentiation. Western blot, TRAP staining, alkaline phosphatase staining, alizarin red S staining, transwell and cell transfection were conducted to confirm that TNF-α inhibited osteoblasts differentiation by exosomal with low circHmbox1 expression from osteoclasts. Bioinformatics analysis and luciferase reporter revealed the mechanisms of the circHmbox1/miR-1247-5p/B cell lymphoma 6 (Bcl6) interaction. In this study, we found that the level of circRNA-circHmbox1 was obviously reduced in TNF-α-induced osteoclast formation in vivo and in vitro. CircHmbox1 could inhibit RANKL-induced osteoclasts differentiation primarily through binding to microRNA-1247-5p. TNF-α decreased osteoblasts differentiation by exosomal with low circHmbox1 expression from osteoclasts. Mechanistic studies showed that microRNA-1247-5p regulated osteoclasts differentiation and osteoblasts differentiation by targeting Bcl6, which was confirmed to play opposite roles in osteoblasts differentiation and osteoclasts differentiation. Our results provide evidence that circHmbox1-targeting miR-1247-5p is involved in the regulation of bone metabolisms by TNF-α in PMOP.
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Affiliation(s)
- Zhuochao Liu
- Department of Orthopedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Changwei Li
- Department of Orthopedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ping Huang
- Department of Orthopedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fangqiong Hu
- Department of Orthopedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min Jiang
- Department of Orthopedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xing Xu
- Department of Orthopedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bin Li
- Department of Orthopedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lianfu Deng
- Department of Orthopedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tianwen Ye
- Department of Orthopedic Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Lei Guo
- Department of Orthopedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Kaur M, Nagpal M, Singh M. Osteoblast-n-Osteoclast: Making Headway to Osteoporosis Treatment. Curr Drug Targets 2020; 21:1640-1651. [DOI: 10.2174/1389450121666200731173522] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 07/02/2020] [Accepted: 07/15/2020] [Indexed: 12/18/2022]
Abstract
Background:
Bone is a dynamic tissue that continuously undergoes the modeling and remodeling
process to maintain its strength and firmness. Bone remodeling is determined by the functioning
of osteoblast and osteoclast cells. The imbalance between the functioning of osteoclast and osteoblast
cells leads to osteoporosis. Osteoporosis is divided into primary and secondary osteoporosis.
Generally, osteoporosis is diagnosed by measuring bone mineral density (BMD) and various osteoblast
and osteoclast cell markers.
Methods:
Relevant literature reports have been studied and data has been collected using various
search engines like google scholar, scihub, sciencedirect, pubmed, etc. A thorough understanding of
the mechanism of bone targeting strategies has been discussed and related literature has been studied
and compiled.
Results:
Bone remodeling process has been described in detail including various approaches for targeting
bone. Several bone targeting moieties have been stated in detail along with their mechanisms.
Targeting of osteoclasts and osteoblasts using various nanocarriers has been discussed in separate sections.
The toxicity issues or Biosafety related to the use of nanomaterials have been covered.
Conclusion:
The treatment of osteoporosis targets the inhibition of bone resorption and the use of
agents that promote bone mineralization to slow disease progression. Current osteoporosis therapy involves
the use of targeting moieties such as bisphosphonates and tetracyclines for targeting various
drugs. Nanotechnology has been used for targeting various drug molecules such as RANKLinhibitors,
parathyroid hormone analogues, estrogen agonists and antagonists, Wnt signaling enhancer
and calcitonin specifically to bone tissue (osteoclast and osteoblasts). So, a multicomponent treatment
strategy targeting both the bone cells will be more effective rather than targeting only osteoclasts and
it will be a potential area of research in bone targeting used to treat osteoporosis.
The first section of the review article covers various aspects of bone targeting. Another section comprises
details of various targeting moieties such as bisphosphonates, tetracyclines; and various
nanocarriers developed to target osteoclast and osteoblast cells and summarized data on in vivo models
has been used for assessment of bone targeting, drawbacks of current strategies and future perspectives.
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Affiliation(s)
- Malkiet Kaur
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Manju Nagpal
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Manjinder Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
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18
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Bone Mineral Density, Osteoporosis, and Fracture Risk in Adult Patients with Psoriasis or Psoriatic Arthritis: A Systematic Review and Meta-Analysis of Observational Studies. J Clin Med 2020; 9:jcm9113712. [PMID: 33227975 PMCID: PMC7699147 DOI: 10.3390/jcm9113712] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/13/2020] [Accepted: 11/16/2020] [Indexed: 02/08/2023] Open
Abstract
INTRODUCTION Awareness of psoriasis-related comorbidities has been established in the current guidelines; however, evidence regarding the association of bone density or bone fragility with psoriatic disease remains inconclusive. METHODS We conducted a systematic review and meta-analysis to assess bone mineral density and the risk of osteoporosis and fractures in patients with psoriatic disease, including those with cutaneous psoriasis and psoriatic arthritis. We searched electronic databases for published observational studies. A meta-analysis was performed using the random-effect model. Pooled estimates and their confidence intervals (CIs) were calculated. Small-study effects were examined using the Doi plot and Luis Furuya-Kanamori index. RESULTS The analysis of the standardized mean difference in the absolute value of bone mineral density at different measuring sites (lumbar spine, femoral neck, and total hip) revealed no significant difference between patients with psoriatic disease and non-psoriatic controls. The pooled results of the adjusted odds ratios (ORs) demonstrated no increased risk of osteoporosis in patients with psoriatic disease. Notably, patients with psoriatic disease had a higher OR of developing bone fractures (adjusted OR: 1.09; 95% CI: 1.06 to 1.12; I2: 0%). CONCLUSION Patients with psoriatic disease may be more likely to develop fractures compared with non-psoriatic controls. This higher risk for fracture may not necessarily be associated with lower bone mineral density nor a higher risk for osteoporosis.
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Liu W, Zhou J, Niu F, Pu F, Wang Z, Huang M, Zhao X, Yang L, Tao P, Xia P, Feng J. Mycobacterium tuberculosis infection increases the number of osteoclasts and inhibits osteoclast apoptosis by regulating TNF-α-mediated osteoclast autophagy. Exp Ther Med 2020; 20:1889-1898. [PMID: 32782497 PMCID: PMC7401307 DOI: 10.3892/etm.2020.8903] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 12/11/2019] [Indexed: 02/07/2023] Open
Abstract
Osteoarticular tuberculosis, a chronic inflammatory disease characterized by Mycobacterium tuberculosis (M.tb) infection, has become a serious problem in China. The present study was conducted to determine the mechanism of action of tumor necrosis factor (TNF)-α in the pathogenesis of osteoarticular tuberculosis. The number of osteoclasts in osteoarticular tuberculosis tissue samples was detected by tartrate-resistant acid phosphatase staining. Autophagy and apoptosis of osteoclasts were detected by western blotting, reverse transcription-quantitative PCR, transmission electron microscopy and TUNEL staining. The results showed that autophagy and the number of osteoclasts increased in the lesions of patients with osteoarticular tuberculosis compared with osteoarthritis samples. Moreover, activation of osteoclast autophagy inhibited the apoptosis of osteoclasts infected with M.tb, and increased the expression level of TNF-α. The results showed that TNF-α enhanced the autophagic activity of M.tb-infected osteoclasts and inhibited cell apoptosis. These findings indicated that M.tb infection induced osteoclast production and inhibited osteoclast apoptosis by regulating TNF-α-mediated osteoclast autophagy, revealing a new mechanism for TNF-α in the pathogenesis of osteoarticular tuberculosis.
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Affiliation(s)
- Wei Liu
- Department of Orthopaedics, First Hospital of Wuhan, Wuhan, Hubei 430022, P.R. China
| | - Juan Zhou
- Department of Orthopaedics, First Hospital of Wuhan, Wuhan, Hubei 430022, P.R. China
| | - Fei Niu
- Department of Orthopaedics, First Hospital of Wuhan, Wuhan, Hubei 430022, P.R. China
| | - Feifei Pu
- Department of Orthopaedics, First Hospital of Wuhan, Wuhan, Hubei 430022, P.R. China
| | - Zhiwei Wang
- Department of Orthopaedics, First Hospital of Wuhan, Wuhan, Hubei 430022, P.R. China
| | - Mi Huang
- Department of Orthopaedics, First Hospital of Wuhan, Wuhan, Hubei 430022, P.R. China
| | - Xiaolong Zhao
- Department of Orthopaedics, First Hospital of Wuhan, Wuhan, Hubei 430022, P.R. China
| | - Lin Yang
- Department of Orthopaedics, First Hospital of Wuhan, Wuhan, Hubei 430022, P.R. China
| | - Pengfei Tao
- Department of Orthopaedics, First Hospital of Wuhan, Wuhan, Hubei 430022, P.R. China
| | - Ping Xia
- Department of Orthopaedics, First Hospital of Wuhan, Wuhan, Hubei 430022, P.R. China
| | - Jing Feng
- Department of Orthopaedics, First Hospital of Wuhan, Wuhan, Hubei 430022, P.R. China
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Tsuchiya M, Kayamori K, Wada A, Komaki M, Ohata Y, Hamagaki M, Sakamoto K, Ikeda T. A Novel, Tumor-Induced Osteoclastogenesis Pathway Insensitive to Denosumab but Interfered by Cannabidiol. Int J Mol Sci 2019; 20:ijms20246211. [PMID: 31835378 PMCID: PMC6940789 DOI: 10.3390/ijms20246211] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 11/29/2019] [Accepted: 12/06/2019] [Indexed: 12/21/2022] Open
Abstract
Bone metabolism is strictly regulated, and impaired regulation caused by hormonal imbalances induces systemic bone loss. Local bone loss caused by tumor invasion into bone is suggested to be induced by the generation of cytokines, which affect bone metabolism, by tumor cells. The major cause of systemic and local bone losses is excess bone resorption by osteoclasts, which differentiate from macrophages by receptor activator of nuclear factor kappa-B ligand (RANKL) or tumor necrosis factor-alpha (TNF-α). We previously found a novel pathway for tumor-induced osteoclastogenesis targeting osteoclast precursor cells (OPCs). Tumor-induced osteoclastogenesis was resistant to RANKL and TNF-α inhibitors. In the present study, we confirmed that exosomes derived from oral squamous cell carcinoma (OSCC) cells induced osteoclasts from OPCs. We also showed that the depletion of exosomes from culture supernatants of OSCC cells partially interfered with osteoclastogenesis, and cannabidiol, an innoxious cannabinoid without psychotropic effects, almost completely suppressed tumor-induced osteoclastogenesis. Osteoclastogenesis and its interference by cannabidiol were independent of the expression of nuclear factor of T cell c1 (NFATc1). These results show that osteoclastogenesis induced by OSCC cells targeting OPCs is a novel osteoclastogenic pathway independent of NFATc1 expression that is partially caused by tumor-derived exosomes and suppressed by cannabidiol.
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Affiliation(s)
- Maiko Tsuchiya
- Department of Oral Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan; (M.T.); (K.K.); (M.H.); (K.S.)
| | - Kou Kayamori
- Department of Oral Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan; (M.T.); (K.K.); (M.H.); (K.S.)
| | - Akane Wada
- Department of Oral Diagnostic Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan; (A.W.); (Y.O.)
| | - Motohiro Komaki
- Department of Highly Advanced Stomatology (Periodontology), Graduate School of Dentistry, Kanagawa Dental University, 3-31-6 Tsuruya-cho, Kanagawa-ku, Yokosuka-city, Kanagawa 221-0835, Japan;
| | - Yae Ohata
- Department of Oral Diagnostic Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan; (A.W.); (Y.O.)
| | - Miwako Hamagaki
- Department of Oral Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan; (M.T.); (K.K.); (M.H.); (K.S.)
| | - Kei Sakamoto
- Department of Oral Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan; (M.T.); (K.K.); (M.H.); (K.S.)
| | - Tohru Ikeda
- Department of Oral Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan; (M.T.); (K.K.); (M.H.); (K.S.)
- Correspondence: ; Tel.: +81-3-5803-5451
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Chen TH, Weber FE, Malina-Altzinger J, Ghayor C. Epigenetic drugs as new therapy for tumor necrosis factor-α-compromised bone healing. Bone 2019; 127:49-58. [PMID: 31152802 DOI: 10.1016/j.bone.2019.05.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/20/2019] [Accepted: 05/27/2019] [Indexed: 02/07/2023]
Abstract
Impaired bone regeneration by excess inflammation leads to failure of bone healing. Current therapies display limited benefits making new treatments imperative. Our recent discoveries of the anti-inflammatory characteristics of bromodomain and extra terminal domain (BET) inhibitors, N-methylpyrrolidone (NMP) and N,N-Dimethylacetamide (DMA), implicate possible therapeutic use of epigenetic drugs in inflammation-impaired bone healing. Here, we investigated the effects of NMP and DMA on osteogenesis in vitro and ex vivo under the influence of TNFα, a key cytokine responsible for impaired fracture healing. NMP and DMA pre-treatment recovered TNFα-inhibited expression of essential osteoblastic genes, Alp, Runx2, and Osterix as well as mineralization in multipotent stem cells, but not in pre-osteoblasts and calvarial osteoblasts. The mechanism of action involves the recovery of TNFα-suppressed BMP-induced Smad signaling and the reduction of TNFα-triggered ERK pathway. In addition, ERK inhibitor treatment diminished the effect of TNFα on osteogenesis, which reinforces the role of ERK pathway in the adverse effect of TNFα. Furthermore, endochondral ossification was analyzed in an ex vivo bone culture model. TNFα largely abrogated BMP-promoted growth of mineralized bone while pre-treatment of NMP and DMA prevented the deleterious effect of TNFα. Taken together, these data shed light on developing low- affinity epigenetic drugs as new therapies for inflammation-compromised bone healing.
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Affiliation(s)
- Tse-Hsiang Chen
- University of Zurich, Center of Dental Medicine, Oral Biotechnology & Bioengineering, Plattenstrasse11, 8032 Zürich, Switzerland; Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Switzerland
| | - Franz E Weber
- University of Zurich, Center of Dental Medicine, Oral Biotechnology & Bioengineering, Plattenstrasse11, 8032 Zürich, Switzerland; Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Switzerland; CABMM, Center for Applied Biotechnology and Molecular Medicine, University of Zurich, Zürich, Switzerland
| | - Johann Malina-Altzinger
- Limmat Cleft and Craniofacial Centre, Zürich MKG, Hardturmstrasse 133, 8005 Zürich, Switzerland
| | - Chafik Ghayor
- University of Zurich, Center of Dental Medicine, Oral Biotechnology & Bioengineering, Plattenstrasse11, 8032 Zürich, Switzerland.
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22
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Fauny M, Albuisson E, Bauer E, Perrier-Cornet J, Chary-Valckenaere I, Loeuille D. Study of vertebral fracture and Scanographic Bone Attenuation Coefficient in rheumatoid arthritis and ankylosing spondylitis vs. controls. Sci Rep 2019; 9:13323. [PMID: 31527613 PMCID: PMC6746735 DOI: 10.1038/s41598-019-49712-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 08/16/2019] [Indexed: 01/14/2023] Open
Abstract
The objective of this study is to identify the prevalence of vertebral fractures (VFs) and to measure the scanographic bone attenuation coefficient of the first lumbar vertebra (SBAC-L1) based CT-scan, a biomarker of bone fragility in patients with rheumatoid arthritis (RA) and ankylosing spondylitis (AS) and in a control group. This monocentric and retrospective study included patients with RA and AS, based on ACR/EULAR or New-York criteria, respectively. A control group was constituted. All of the patients received a CT-scan. VFs were determined via CT-scans according to the Genant classification, and the SBAC-L1 was measured in Hounsfield units (HU). SBAC-L1 ≤145 HU (fracture threshold) defined patients at risk of VFs. 244 patients were included (105 RA, 83 AS, 56 controls). Of the 4.365 vertebrae studied, 66 osteoporotic VFs were found in 36 patients: 18 (17.1%) RA, 13 (15.7%) AS and 5 (8.9%) controls. The mean SBAC-L1 was 142.2 (±48.4) HU for RA, 142.8 (±48.2) for AS, both of which were significantly lower than that of the control group (161.8 (±42.7) HU). Of the 36 patients with VFs and rheumatism, 28% had a T-score ≤-2.5 SD and 71.4% a SBAC-L1 ≤145 HU. A T-score ≤-2.5 SD and a SBAC-L1 ≤145 HU were associated with VF (OR = 3.07 (CI 95%: 1.07; 8.81), and 2.31 (CI 95%: 1.06; 5.06)), respectively. The SBAC-L1 was significantly lower in the RA and AS groups than in the control group. Furthermore, SBAC-L1 ≤145 HU was associated with a higher risk of VFs, with an odds ratio similar to that of a DXA.
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Affiliation(s)
- Marine Fauny
- Department of Rheumatology, University Hospital, Nancy, France.
| | - Eliane Albuisson
- Pôle S2R, PARC, University Hospital, Vandoeuvre lès Nancy, France.,University of Lorraine, Faculty of Medicine, InSciDens, Vandoeuvre lès Nancy, France.,CNRS, Institute Elie Cartan de Lorraine, UMR 7502, Vandoeuvre-lès-Nancy, F-54506, France
| | - Elodie Bauer
- Department of Rheumatology, University Hospital, Nancy, France
| | | | | | - Damien Loeuille
- Department of Rheumatology, University Hospital, Nancy, France
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23
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Orsolini G, Fassio A, Rossini M, Adami G, Giollo A, Caimmi C, Idolazzi L, Viapiana O, Gatti D. Effects of biological and targeted synthetic DMARDs on bone loss in rheumatoid arthritis. Pharmacol Res 2019; 147:104354. [DOI: 10.1016/j.phrs.2019.104354] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 07/09/2019] [Accepted: 07/11/2019] [Indexed: 12/12/2022]
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24
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Zaiss MM, Hall C, McGowan NWA, Babb R, Devlia V, Lucas S, Meghji S, Henderson B, Bozec A, Schett G, David JP, Panayi GS, Grigoriadis AE, Corrigall VM. Binding Immunoglobulin Protein (BIP) Inhibits TNF-α-Induced Osteoclast Differentiation and Systemic Bone Loss in an Erosive Arthritis Model. ACR Open Rheumatol 2019; 1:382-393. [PMID: 31777818 PMCID: PMC6857990 DOI: 10.1002/acr2.11060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 06/11/2019] [Indexed: 12/15/2022] Open
Abstract
Objective The association between inflammation and dysregulated bone remodeling is apparent in rheumatoid arthritis and is recapitulated in the human tumor necrosis factor transgenic (hTNFtg) mouse model. We investigated whether extracellular binding immunoglobulin protein (BiP) would protect the hTNFtg mouse from both inflammatory arthritis as well as extensive systemic bone loss and whether BiP had direct antiosteoclast properties in vitro. Methods hTNFtg mice received a single intraperitoneal administration of BiP at onset of arthritis. Clinical disease parameters were measured weekly. Bone analysis was performed by microcomputed tomography and histomorphometry. Mouse bone marrow macrophage and human peripheral blood monocyte precursors were used to study the direct effect of BiP on osteoclast differentiation and function in vitro. Monocyte and osteoclast signaling was analyzed by Western blotting, flow cytometry, and imaging flow cytometry. Results BiP-treated mice showed reduced inflammation and cartilage destruction, and histomorphometric analysis revealed a decrease in osteoclast number with protection from systemic bone loss. Abrogation of osteoclast function was also observed in an ex vivo murine calvarial model. BiP inhibited differentiation of osteoclast precursors and prevented bone resorption by mature osteoclasts in vitro. BiP also induced downregulation of CD115/c-Fms and Receptor Activator of NF-κB (RANK) messenger RNA and protein, causing reduced phosphorylation of the p38 mitogen-activated protein kinases, extracellular signal-regulated kinases 1/2 and p38, with suppression of essential osteoclast transcription factors, c-Fos and NFATc1. BiP directly inhibited TNF-α- or Receptor Activator of NF-κB Ligand (RANKL)-induced NF-κB nuclear translocation in THP-1 monocytic cells and preosteoclasts by the canonical and noncanonical pathways. Conclusion BiP combines an anti-inflammatory function with antiosteoclast activity, which establishes it as a potential novel therapeutic for inflammatory disorders associated with bone loss.
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Affiliation(s)
- Mario M Zaiss
- Friedrich-Alexander University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen Erlangen Germany
| | | | | | | | | | - Sébastien Lucas
- Friedrich-Alexander University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen Erlangen Germany
| | - Sajeda Meghji
- UCL-Eastman Dental Institute University College London London UK
| | - Brian Henderson
- UCL-Eastman Dental Institute University College London London UK
| | - Aline Bozec
- Friedrich-Alexander University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen Erlangen Germany
| | - Georg Schett
- Friedrich-Alexander University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen Erlangen Germany
| | - Jean-Pierre David
- Friedrich-Alexander University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany, and Institute of Osteology and Biomechanics (IOBM) University Medical Center Hamburg-Eppendorf Hamburg Germany
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25
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Vashghani Farahani MM, Masteri Farahani R, Abdollahifar MA, Ghatresaman M, Ghoreishi SK, Hajihossainlou B, Chien S, Mostafavinia A, Rezaei F, Bayat M. Effects of pentoxifylline and alendronate on fracture healing in ovariectomy-induced osteoporosis in rats. VETERINARY RESEARCH FORUM : AN INTERNATIONAL QUARTERLY JOURNAL 2019; 10:93-100. [PMID: 31338141 PMCID: PMC6626642 DOI: 10.30466/vrf.2018.82732.2089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 08/01/2018] [Indexed: 06/10/2023]
Abstract
Osteoporosis is determined by decreased bone strength that increases the threat of fractures. The aim of this study was to evaluate the effects of pentoxifylline (PTX) and alendronate (ALN), on the stereological parameters, and gene expression in callus of fracture in an experimental rat model of ovariectomy-induced osteoporosis (OVX). The OVX was induced in 90 female rats. Fourteen weeks later, a complete fracture on the right femur was made. Rats were divided into five groups: 1) control: no treatment; 2) sham: received daily distilled water; 3) daily 3.00 mg kg-1 ALN subcutaneously (SC); 4) daily 200 mg kg-1 PTX (SC) and 5) daily PTX (SC) + ALN (same doses). The osteoclast count was significantly lower in all treatment groups, at 21 and 56 days post-surgery, compared to the control and sham groups. The PTX significantly increased total callus volume at 21 and 56 days post-surgery, compared to the other groups. The PTX+ALN treatment significantly increased both cortical bone volume on day 21, and osteocyte and osteoblast numbers on day 56, compared to the control and sham groups. It can be concluded that PTX and ALN have antiresorptive effects, in OVX rats. Also, PTX has increased the extracellular matrix on both 21 and 56 days after surgery, compared to the other groups. PTX+ALN elevated cortical bone volume on day 21, and osteocyte and osteoblast numbers compared to the control and sham groups on day 56.
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Affiliation(s)
| | - Reza Masteri Farahani
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran;
| | - Mohammad-Amin Abdollahifar
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran;
| | - Mahdi Ghatresaman
- Cellular and Molecular Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran;
| | | | - Behnam Hajihossainlou
- Department of Internal Medicine, Aurora Medical Center- Bay Area, Marinette, Wisconsin, USA;
| | - Sufan Chien
- Price Institute of Surgical Research, University of Louisville, Noveratech LLC of Louisville, Louisville, USA;
| | - Atarodsadat Mostafavinia
- Department of Anatomy, School of Medicine, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran;
| | - Fatemehsadat Rezaei
- Cellular and Molecular Biology Research Center, Department of Biology and Anatomical Sciences, Shahid Beheshti University of Medical Science, Tehran, Iran.
| | - Mohammad Bayat
- Cellular and Molecular Biology Research Center, Department of Biology and Anatomical Sciences, Shahid Beheshti University of Medical Science, Tehran, Iran.
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26
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Maldonado-Pérez MB, Castro-Laria L, Caunedo-Álvarez A, Montoya-García MJ, Giner-García M, Argüelles-Arias F, Romero-Gómez M, Vázquez-Gámez MÁ. Does the Antitumor Necrosis Factor-α Therapy Decrease the Vertebral Fractures Occurrence in Inflammatory Bowel Disease? J Clin Densitom 2019; 22:195-202. [PMID: 30205986 DOI: 10.1016/j.jocd.2018.07.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 07/20/2018] [Accepted: 07/24/2018] [Indexed: 01/01/2023]
Abstract
BACKGROUND/OBJECTIVE Osteoporosis and osteoporotic fracture risk are extraintestinal manifestations of the inflammatory bowel disease, whose etiopathogenic mechanisms have not been determined yet. Anti-tumor necrosis factor (TNF)-α are used in treatment of inflammatory bowel disease (IBD), but it is unknown if they play a role in osteoporotic fracture prevention. The objective of this study was to know if anti-TNF decreases fracture risk or modifies bone mineral density. To determine the possible risk factors associated with fractures, and assess the incidence of vertebral fractures in IBD patients. METHODS Longitudinal prospective cohort study (7 yr of follow-up); which included 71 IBD patients, 23 received anti-TNF-α; the remaining 48 received conventional treatment, constituted the control group. Patients participated in a questionnaire which gathered risk factors associated with the development of osteoporosis and fractures. Radiographs of the dorsolumbar-spine were performed and also a bone density measurement. Their biochemical and bone remodeling parameters were determined. RESULTS Although patients who did not receive anti-TNF-α, suffered more fractures but biologic therapy did not reduce the risk of new vertebral fractures. The increase of bone mass was significantly higher the group treated with anti-TNF-α. The increase in the lumbar spine was of 8% and in the femoral neck was of 6.7%. The only determinant factor for the incidence of vertebral fractures was a history of previous fractures (odds ratio of 12.8; confidence interval 95% 2.37-69.9; p = 0.003). The incidence of vertebral fractures in IBD patients was considerably high: 26.7/700 patient-yr. CONCLUSIONS Anti-TNF-α, although increased bone mass in these patients, did not reduce the risk of new vertebral fractures. In this study, patients with IBD have a considerably high incidence of fractures. Only the existence of previous vertebral fractures was a predictive factor for consistent fractures.
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Affiliation(s)
- M B Maldonado-Pérez
- Department of Gastroenterology, University Hospital Virgen Macarena, Seville, Spain.
| | - L Castro-Laria
- Department of Gastroenterology, University Hospital Virgen Macarena, Seville, Spain
| | - A Caunedo-Álvarez
- Department of Gastroenterology, University Hospital Virgen Macarena, Seville, Spain; Medicine Department, University of Seville, Seville, Spain
| | - M J Montoya-García
- Medicine Department, University of Seville, Seville, Spain; Bone Metabolism Unit, University Hospital Virgen Macarena, Seville, Spain
| | - M Giner-García
- Medicine Department, University of Seville, Seville, Spain; Bone Metabolism Unit, University Hospital Virgen Macarena, Seville, Spain
| | - F Argüelles-Arias
- Department of Gastroenterology, University Hospital Virgen Macarena, Seville, Spain; Medicine Department, University of Seville, Seville, Spain
| | - M Romero-Gómez
- Department of Gastroenterology, University Hospital Virgen Macarena, Seville, Spain; Medicine Department, University of Seville, Seville, Spain
| | - M Á Vázquez-Gámez
- Medicine Department, University of Seville, Seville, Spain; Bone Metabolism Unit, University Hospital Virgen Macarena, Seville, Spain
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27
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Niccoli L, Nannini C, Blandizzi C, Mantarro S, Mosca M, Di Munno O, Goletti D, Benucci M, Gobbi FL, Cassarà E, Kaloudi O, Cantini F. Personalization of biologic therapy in patients with rheumatoid arthritis: less frequently accounted choice-driving variables. Ther Clin Risk Manag 2018; 14:2097-2111. [PMID: 30498353 PMCID: PMC6207089 DOI: 10.2147/tcrm.s175772] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Objective To propose appropriate statements that drive the choice of biologic therapies in patients with rheumatoid arthritis (RA), factoring in their impact on the following issues: anti-drug antibody (ADAb) formation, suspicion and management of infections, lupus-like syndrome (LLS), effects on bone mass and sexual sphere, and relationship between RA and periodontal disease (PD). Methods An overview of existing evidence was undertaken by an expert panel on behalf of the Italian board for the TAilored BIOlogic therapy (ITABIO). Data were extracted from controlled trials, national registries, national health care databases, post-marketing surveys, and, when required by the paucity of controlled studies, from open-label clinical series. Anti-tumor necrosis factor (anti-TNF) and non-anti-TNF-targeted biologics approved for RA were investigated. Results ADAb formation is chiefly associated with anti-TNFs, and it is reduced by combination therapy with methotrexate. To date, ADAb titration is not advisable for clinical practice, and, in case of anti-TNF secondary failure, a non-anti-TNF biologic is indicated. LLS is observed in anti-TNF receivers and, in most cases, resolves without anti-TNF withdrawal. A non-anti-TNF biologic is advisable in patients experiencing LLS. Non-anti-TNFs demonstrated a low or absent infection risk and are preferable in patients with comorbidities. Due to their positive effects on bone mass, anti-TNFs are indicated in women at osteoporosis risk, whereas non-anti-TNF have been poorly investigated. The emerging evidence of the relationship between RA and PD and the effects on anti-TNF efficacy should lead clinicians to consider the periodontal status in RA patients. Anti-TNFs may exert a positive effect on fertility and sexuality, and clinicians should explore these aspects in RA patients. Conclusion The optimization of biologic therapies by taking into proper account the above issues would improve patient outcomes.
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Affiliation(s)
- Laura Niccoli
- Department of Rheumatology, Hospital of Prato, Prato, Italy,
| | | | - Corrado Blandizzi
- Section of Pharmacology and Pharmacovigilance, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Stefania Mantarro
- Section of Pharmacology and Pharmacovigilance, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Marta Mosca
- Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Ombretta Di Munno
- Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Delia Goletti
- Translational Research Unit, Department of Epidemiology and Preclinical Research, National Institute for Infectious Diseases, Rome, Italy
| | | | | | | | - Olga Kaloudi
- Department of Rheumatology, Hospital of Prato, Prato, Italy,
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28
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Shi Q, Rondon-Cavanzo EP, Dalla Picola IP, Tiera MJ, Zhang X, Dai K, Benabdoune HA, Benderdour M, Fernandes JC. In vivo therapeutic efficacy of TNFα silencing by folate-PEG-chitosan-DEAE/siRNA nanoparticles in arthritic mice. Int J Nanomedicine 2018; 13:387-402. [PMID: 29391796 PMCID: PMC5769564 DOI: 10.2147/ijn.s146942] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Tumor necrosis factor-alpha (TNFα), a pro-inflammatory cytokine, has been shown to play a role in the pathophysiology of rheumatoid arthritis. Silencing TNFα expression with small interfering RNA (siRNA) is a promising approach to treatment of the condition. METHODS Towards this end, our team has developed a modified chitosan (CH) nanocarrier, deploying folic acid, diethylethylamine (DEAE) and polyethylene glycol (PEG) (folate-PEG-CH-DEAE15). The gene carrier protects siRNA against nuclease destruction, its ligands facilitate siRNA uptake via cell surface receptors, and it provides improved solubility at neutral pH with transport of its load into target cells. In the present study, nanoparticles were prepared with siRNA-TNFα, DEAE, and folic acid-CH derivative. Nanoparticle size and zeta potential were verified by dynamic light scattering. Their TNFα-knockdown effects were tested in a murine collagen antibody-induced arthritis model. TNFα expression was examined along with measurements of various cartilage and bone turnover markers by performing histology and microcomputed tomography analysis. RESULTS We demonstrated that folate-PEG-CH-DEAE15/siRNA nanoparticles did not alter cell viability, and significantly decreased inflammation, as demonstrated by improved clinical scores and lower TNFα protein concentrations in target tissues. This siRNA nanocarrier also decreased articular cartilage destruction and bone loss. CONCLUSION The results indicate that folate-PEG-CH-DEAE15 nanoparticles are a safe and effective platform for nonviral gene delivery of siRNA, and their potential clinical applications warrant further investigation.
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Affiliation(s)
- Qin Shi
- Orthopedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal, Université de Montréal, Montréal, QC, Canada
| | - Elsa-Patricia Rondon-Cavanzo
- Orthopedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal, Université de Montréal, Montréal, QC, Canada
| | - Isadora Pfeifer Dalla Picola
- Orthopedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal, Université de Montréal, Montréal, QC, Canada
- Department of Chemistry and Environmental Sciences, UNESP-São Paulo State University, São José do Rio Preto, Brazil
| | - Marcio José Tiera
- Department of Chemistry and Environmental Sciences, UNESP-São Paulo State University, São José do Rio Preto, Brazil
| | - Xiaoling Zhang
- Orthopedic Cellular and Molecular Biology Laboratories, Institute of Health Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai
| | - Kerong Dai
- Department of Orthopedics, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Houda Abir Benabdoune
- Orthopedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal, Université de Montréal, Montréal, QC, Canada
| | - Mohamed Benderdour
- Orthopedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal, Université de Montréal, Montréal, QC, Canada
| | - Julio Cesar Fernandes
- Orthopedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal, Université de Montréal, Montréal, QC, Canada
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Tada M, Inui K, Sugioka Y, Mamoto K, Okano T, Koike T. Abatacept might increase bone mineral density at femoral neck for patients with rheumatoid arthritis in clinical practice: AIRTIGHT study. Rheumatol Int 2018; 38:777-784. [DOI: 10.1007/s00296-017-3922-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 12/22/2017] [Indexed: 10/18/2022]
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30
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Matthews BG, Roeder E, Wang X, Aguila HL, Lee SK, Grcevic D, Kalajzic I. Splenomegaly, myeloid lineage expansion and increased osteoclastogenesis in osteogenesis imperfecta murine. Bone 2017; 103:1-11. [PMID: 28600151 PMCID: PMC5764163 DOI: 10.1016/j.bone.2017.06.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 05/14/2017] [Accepted: 06/04/2017] [Indexed: 01/14/2023]
Abstract
Osteogenesis imperfecta (OI) is a disease caused by defects in type I collagen production that results in brittle bones. While the pathology is mainly caused by defects in the osteoblast lineage, there is also elevated bone resorption by osteoclasts resulting in high bone turnover in severe forms of the disease. Osteoclasts originate from hematopoietic myeloid cells, however changes in hematopoiesis have not been previously documented in OI. In this study, we evaluated hematopoietic lineage distribution and osteoclast progenitor cell frequency in bone marrow, spleen and peripheral blood of osteogenesis imperfecta murine (OIM) mice, a model of severe OI. We found splenomegaly in all ages examined, and expansion of myeloid lineage cells (CD11b+) in bone marrow and spleen of 7-9week old male OIM animals. OIM spleens also showed an increased frequency of purified osteoclast progenitors. This phenotype is suggestive of chronic inflammation. Isolated osteoclast precursors from both spleen and bone marrow formed osteoclasts more rapidly than wild-type controls. We found that serum TNFα levels were increased in OIM, as was IL1α in OIM females. We targeted inflammation therapeutically by treating growing animals with murine TNFR2:Fc, a compound that blocks TNFα activity. Anti-TNFα treatment marginally decreased spleen mass in OIM females, but failed to reduce bone resorption, or improve bone parameters or fracture rate in OIM animals. We have demonstrated that OIM mice have changes in their hematopoietic system, and form osteoclasts more rapidly even in the absence of OI osteoblast signals, however therapy targeting TNFα did not improve disease parameters.
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Affiliation(s)
- Brya G Matthews
- Department of Reconstructive Sciences, University of Connecticut, Farmington, CT 06030, USA.
| | - Emilie Roeder
- Department of Reconstructive Sciences, University of Connecticut, Farmington, CT 06030, USA
| | - Xi Wang
- Department of Reconstructive Sciences, University of Connecticut, Farmington, CT 06030, USA
| | | | - Sun-Kyeong Lee
- Center on Aging, University of Connecticut, Farmington, CT 06030, USA
| | - Danka Grcevic
- Department of Physiology and Immunology, School of Medicine, University of Zagreb, Zagreb 10000, Croatia
| | - Ivo Kalajzic
- Department of Reconstructive Sciences, University of Connecticut, Farmington, CT 06030, USA.
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31
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Toussirot É, Mourot L, Dehecq B, Michel F, Wendling D, Grandclément É, Dumoulin G. Paradoxical elevation of serum TRACP5b levels despite increase in lumbar spine bone mineral density during anti-TNFα therapy in patients with inflammatory rheumatic disease: a 2-year prospective assessment of bone mass, bone metabolism, and the trabecular bone score. Eur J Rheumatol 2017; 4:189-193. [PMID: 29164001 DOI: 10.5152/eurjrheum.2017.17006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/10/2017] [Indexed: 11/22/2022] Open
Abstract
Objective To examine the impact of long-term anti-TNFα therapy on bone mass, bone metabolism, and the trabecular bone score (TBS) in patients with rheumatoid arthritis (RA) or ankylosing spondylitis (AS). Material and Methods In eight patients with RA and 12 with AS, bone mineral densities (BMDs) of the lumbar spine (LS), left and right femoral neck, and total skeleton were measured using dual X-ray absorptiometry at baseline and then at 6, 12, and 24 months after anti TNFα therapy. The TBS was also calculated. At baseline and at 1, 3, 6, 12, 18, and 24 months, bone metabolism was assessed by measurements of pro-collagen-I carboxyterminal propeptide (PICP), osteocalcin, and bone alkaline phosphatase levels in the serum, which are indicative of bone formation and β-isomerized carboxy-terminal telopeptide of type-I collagen (β-CTX-I) and serum isoform 5b of tartrate-resistant acid phosphatase (TRACP5b) levels in the serum, which are indicative of bone resorption. Results In patients with RA, the LS T-score increased (3.2%, p<0.001) and the TBS progressively decreased (-3.9%, p=0.03). In patients with AS, the LS BMD and T-score increased (4.3% and 6.2%, respectively; p<0.001) with no significant change in the TBS. Serum TRACP5b levels dramatically increased in both groups (227% in patients with RA and 150% in those with AS, p<0.001), while β-CTX-I levels did not change. Serum osteocalcin and PICP levels showed a transitory increase in patients with AS. Conclusion Long-term anti-TNFα therapy increased LS bone mass and affected bone quality (TBS) with little impact on bone remodeling. Conversely, TRACP5b levels dramatically increased during anti-TNFα therapy but without any detrimental effect on bone mass.
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Affiliation(s)
- Éric Toussirot
- INSERM CIC-1431, University Hospital of Besançon, Clinical Investigation Center in Biotherapy, Besançon, France.,Fédération Hospital-Universitaire INCREASE, University Hospital of Besançon, Besançon, France.,Department of Rheumatology, University Hospital of Besançon, Besançon, France.,Department of Therapeutics and UPRES EA 4266: "Pathogenic agents and Inflammation", University of Bourgogne Franche-Comté, Besancon, France.,University of Franche Comté, UPRES EA 4266 " Pathogens and Inflammation », Besançon, France.,LabEX LipSTIC, ANR-11-LABX-0021, Besançon cedex, France
| | - Laurent Mourot
- University Hospital of Besançon and University of Franche Comté, EA 4660 Culture Sport Health Society and Exercise Performance, Health, Innovation platform, Besançon, France.,University Hospital of Besançon, Clinical Investigation Center for Innovative Technologies INSERM CIC-1431, Place St Jacques, Besançon, France
| | - Barbara Dehecq
- Department of Endocrine and Metabolic Biochemistry, University Hospital of Besançon, Besançon, France
| | - Fabrice Michel
- Department of Neuromuscular Examinations and Diseases, University Hospital of Besançon, Besançon, France
| | - Daniel Wendling
- Department of Rheumatology, University Hospital of Besançon, Besançon, France.,University of Franche Comté, UPRES EA 4266 " Pathogens and Inflammation », Besançon, France
| | - Émilie Grandclément
- Department of Endocrine and Metabolic Biochemistry, University Hospital of Besançon, Besançon, France
| | - Gilles Dumoulin
- Department of Endocrine and Metabolic Biochemistry, University Hospital of Besançon, Besançon, France.,University of Franche Comté, UPRES EA 3920, "Cardiovascular Pathophysiology and Prevention", Besançon France
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Zhang L, Gan X, He Y, Zhu Z, Zhu J, Yu H. Drp1-dependent mitochondrial fission mediates osteogenic dysfunction in inflammation through elevated production of reactive oxygen species. PLoS One 2017; 12:e0175262. [PMID: 28388678 PMCID: PMC5384744 DOI: 10.1371/journal.pone.0175262] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 03/23/2017] [Indexed: 02/05/2023] Open
Abstract
Although previous studies have implicated pro-inflammatory cytokines, such as tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6), to be detrimental for osteogenic activity, the related regulatory mechanisms are not yet fully validated. Since mitochondria host several essential metabolic processes and play a pivotal role in cellular functions, whether and how mitochondrial function contributes to inflammation-induced bone destruction needs further exploration. Our findings revealed that TNF-α impaired osteoblast function, including decreased mRNA levels of osteogenic markers, suppressed ALP expression and activity, and compromised cellular viability. Moreover, increased reactive oxygen species (ROS)-mediated oxidative stress in the TNF-α-treated group enhanced excessive mitochondrial fragmentation and disrupted mitochondrial function. However, treatment with antioxidant N-acetyl cysteine (NAC) or mitochondrial division inhibitor Mdivi-1 protected the cells from these adverse phenomena. These findings provide new insights into the role of the Drp1-dependent mitochondrial pathway in the osteogenic dysfunction during inflammation, indicating that this pathway may be a target for the development of new therapeutic approaches for the prevention and treatment of inflammation-induced bone destruction.
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Affiliation(s)
- Ling Zhang
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xueqi Gan
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuting He
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Zhuoli Zhu
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Junfei Zhu
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Haiyang Yu
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- * E-mail:
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Xing R, Zhang Y, Li C, Sun L, Yang L, Zhao J, Liu X. Interleukin-21 promotes osteoclastogenesis in RAW264.7 cells through the PI3K/AKT signaling pathway independently of RANKL. Int J Mol Med 2016; 38:1125-34. [PMID: 27599586 PMCID: PMC5029957 DOI: 10.3892/ijmm.2016.2722] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 08/26/2016] [Indexed: 12/14/2022] Open
Abstract
Cytokines play a key role in the bone destruction of rheumatoid arthritis (RA). Interleukin-21 (IL-21) promotes osteoclastogenesis in RA in a receptor activator of nuclear factor-κB ligand (RANKL)-dependent way. Whether IL-21 is capable of promoting osteoclastogenesis directly in the absence of RANKL remains unknown. In the present study, we examined the osteoclastogenic activity of IL-21 in RAW264.7 cells in the absence of RANKL. We found that IL-21 enhanced osteoclastogenesis and this was demonstrated by increased numbers of tartrate-resistant acid phosphatase (TRAP)-positive stained, multinucleated cells compared with the negative control. Western blot analysis and immunocytochemistry showed the positive expression of calcitonin receptor (CTR) in the IL-21 group. RT-PCR and RT-qPCR also verified the increased mRNA expression of CTR and cathepsin K in the IL-21 group compared with the negative control. The scanning electronic microscope images showed a few resorption pits on the bone slices cultured with IL-21. The phosphoinositide 3-kinase (PI3K)/AKT pathway inhibitor LY294002 significantly suppressed IL-21-induced osteoclastogenesis. Taken together, these findings suggest that IL-21 has direct osteoclastogenic potential independently of RANKL. IL-21 may promote osteoclastogenesis through the PI3K/AKT signaling pathway. Therapy targeting IL-21 may be of value in preventing bone erosions in patients with RA.
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Affiliation(s)
- Rui Xing
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Yingjian Zhang
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Changhong Li
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Lin Sun
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Lin Yang
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Jinxia Zhao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Xiangyuan Liu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, P.R. China
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de Barros Silva PG, de Oliveira CC, Brizeno L, Wong D, Lima Júnior R, Gonçalves RP, Sousa FB, Mota M, de Albuquerque Ribeiro R, Alves A. Immune cellular profile of bisphosphonate-related osteonecrosis of the jaw. Oral Dis 2016; 22:649-57. [PMID: 27232600 DOI: 10.1111/odi.12513] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 04/09/2016] [Accepted: 05/02/2016] [Indexed: 01/19/2023]
Abstract
OBJECTIVES Characterize the cell profile and immunostaining of proinflammatory markers in an experimental model of bisphosphonate-related osteonecrosis of the jaw (BRONJ). MATERIALS AND METHODS Male Wistar rats (n = 6-7) were treated chronically with saline solution or zoledronic acid (ZA) at 0.04, 0.20, and 1.00 mg kg(-1) (1.4 × 10(-7) , 6.9 × 10(-6) , and 3.4 × 10(-5) mol kg(-1) ), and subsequently, the first left inferior molar was extracted. Were performed counting of viable and empty osteocyte lacunae, viable and apoptotic osteoclasts, polymorphonuclear neutrophil, mast cells (toluidine blue), and the positive presence cells for CD68, tumor necrosis factor-alpha (TNF-α), IL (interleukin)-1β, inducible nitric oxide synthase (iNOS), nuclear factor-kappa B (NF-kB) and IL-18 binding protein (IL-18 bp). RESULTS BRONJ was showed in ZA treated with 0.20 and 1.00 mg kg(-1) . There is a dose dependent increase in percentage of empty osteocyte lacunae (P < 0.001) and apoptotic osteoclasts (P < 0.001), counting of total osteoclasts (P = 0.003), polymorphonuclear neutrophil cells (P = 0.009), cytoplasmic-positive cells of CD68 (P < 0.001), TNF-α (P = 0.001), IL-1β (P = 0.001), iNOS (P < 0.001), NF-kB (P = 0.006), and nuclear-positive cells of NF-kB (P = 0.011). Consequently, there is no difference in mast cells (P = 0.957), and IL-18 bp immunostaining decreases dose dependently (P = 0.005). CONCLUSIONS BRONJ is characterized by increases in immunostaining for proinflammatory markers and NF-kB and inversely associated with cells exhibiting IL-18 bp.
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Affiliation(s)
- P G de Barros Silva
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil.
| | - C C de Oliveira
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - Lac Brizeno
- Department of Biotechnology, Faculty of Biotechnology, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - Dvt Wong
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - Rcp Lima Júnior
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - R P Gonçalves
- Department of Clinical Analysis, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - F B Sousa
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - Mrl Mota
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - R de Albuquerque Ribeiro
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - Apnn Alves
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
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35
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The Impact of Conventional and Biological Disease Modifying Antirheumatic Drugs on Bone Biology. Rheumatoid Arthritis as a Case Study. Clin Rev Allergy Immunol 2016; 51:100-9. [DOI: 10.1007/s12016-016-8547-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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36
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van der Weijden MAC, van Denderen JC, Lems WF, Nurmohamed MT, Dijkmans BAC, van der Horst-Bruinsma IE. Etanercept Increases Bone Mineral Density in Ankylosing Spondylitis, but Does Not Prevent Vertebral Fractures: Results of a Prospective Observational Cohort Study. J Rheumatol 2016; 43:758-64. [PMID: 26879348 DOI: 10.3899/jrheum.150857] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2015] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Ankylosing spondylitis (AS) is characterized by chronic inflammation leading to ankylosis, but also to low bone mineral density (BMD) and vertebral fractures (VFx). Treatment with tumor necrosis factor-α blockers decreases inflammation and has shown to be effective in increasing BMD. We studied the effects of etanercept (ETN) on BMD and VFx in patients with AS after 2 years of treatment. Further, we studied changes in bone turnover markers and radiological damage. METHODS Patients with active AS, treated with ETN for 2 years, were included. BMD lumbar spine and hip were measured at baseline and after 2 years, as well as radiological damage (modified Stoke Ankylosing Spondylitis Spinal Score with the addition of the thoracic spine), VFx (Genant method), and change in bone turnover markers. RESULTS Forty-nine patients with AS were included. After 2 years of ETN, hip BMD increased by 2.2% (p = 0.014) and lumbar spine BMD by 7.0% (p < 0.001). The Bath Ankylosing Spondylitis Disease Activity Index decreased significantly (p < 0.001), as well as C-reactive protein and erythrocyte sedimentation rate (p < 0.001). Despite ETN therapy, the number of patients with VFx more than doubled (from 6 to 15 patients, p = 0.003). Also, the radiological damage increased significantly over time (from 12.1 to 18.5, p < 0.001); however, no significant change in bone turnover markers was found. CONCLUSION This prospective longitudinal observational cohort study showed that after 2 years of ETN, BMD of the hip and spine increased significantly, but the number of patients with VFx and the severity of VFx increased as well. Besides that, radiological progression, including the thoracic spine, increased significantly. Thus, the favorable bone-preserving effect is accompanied by unfavorable outcomes on VFx and radiological damage.
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Affiliation(s)
- Maria A C van der Weijden
- From the Department of Rheumatology, VU University Medical Center; Department of Rheumatology, Jan van Breemen Research Institute/Reade, Amsterdam, the Netherlands.M.A. van der Weijden, MD, MSc, PhD, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; J.C. van Denderen, MD, PhD, Department of Rheumatology, Jan van Breemen Research Institute/Reade; W.F. Lems, MD, Professor, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; M.T. Nurmohamed, MD, Professor, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; B.A. Dijkmans, MD, Professor, Department of Rheumatology, VU University Medical Center; I.E. van der Horst-Bruinsma, MD, PhD, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade.
| | - J Christiaan van Denderen
- From the Department of Rheumatology, VU University Medical Center; Department of Rheumatology, Jan van Breemen Research Institute/Reade, Amsterdam, the Netherlands.M.A. van der Weijden, MD, MSc, PhD, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; J.C. van Denderen, MD, PhD, Department of Rheumatology, Jan van Breemen Research Institute/Reade; W.F. Lems, MD, Professor, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; M.T. Nurmohamed, MD, Professor, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; B.A. Dijkmans, MD, Professor, Department of Rheumatology, VU University Medical Center; I.E. van der Horst-Bruinsma, MD, PhD, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade
| | - Willem F Lems
- From the Department of Rheumatology, VU University Medical Center; Department of Rheumatology, Jan van Breemen Research Institute/Reade, Amsterdam, the Netherlands.M.A. van der Weijden, MD, MSc, PhD, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; J.C. van Denderen, MD, PhD, Department of Rheumatology, Jan van Breemen Research Institute/Reade; W.F. Lems, MD, Professor, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; M.T. Nurmohamed, MD, Professor, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; B.A. Dijkmans, MD, Professor, Department of Rheumatology, VU University Medical Center; I.E. van der Horst-Bruinsma, MD, PhD, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade
| | - Michael T Nurmohamed
- From the Department of Rheumatology, VU University Medical Center; Department of Rheumatology, Jan van Breemen Research Institute/Reade, Amsterdam, the Netherlands.M.A. van der Weijden, MD, MSc, PhD, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; J.C. van Denderen, MD, PhD, Department of Rheumatology, Jan van Breemen Research Institute/Reade; W.F. Lems, MD, Professor, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; M.T. Nurmohamed, MD, Professor, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; B.A. Dijkmans, MD, Professor, Department of Rheumatology, VU University Medical Center; I.E. van der Horst-Bruinsma, MD, PhD, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade
| | - Ben A C Dijkmans
- From the Department of Rheumatology, VU University Medical Center; Department of Rheumatology, Jan van Breemen Research Institute/Reade, Amsterdam, the Netherlands.M.A. van der Weijden, MD, MSc, PhD, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; J.C. van Denderen, MD, PhD, Department of Rheumatology, Jan van Breemen Research Institute/Reade; W.F. Lems, MD, Professor, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; M.T. Nurmohamed, MD, Professor, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; B.A. Dijkmans, MD, Professor, Department of Rheumatology, VU University Medical Center; I.E. van der Horst-Bruinsma, MD, PhD, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade
| | - Irene E van der Horst-Bruinsma
- From the Department of Rheumatology, VU University Medical Center; Department of Rheumatology, Jan van Breemen Research Institute/Reade, Amsterdam, the Netherlands.M.A. van der Weijden, MD, MSc, PhD, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; J.C. van Denderen, MD, PhD, Department of Rheumatology, Jan van Breemen Research Institute/Reade; W.F. Lems, MD, Professor, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; M.T. Nurmohamed, MD, Professor, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade; B.A. Dijkmans, MD, Professor, Department of Rheumatology, VU University Medical Center; I.E. van der Horst-Bruinsma, MD, PhD, Department of Rheumatology, VU University Medical Center, and Department of Rheumatology, Jan van Breemen Research Institute/Reade
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Seong S, Kim JH, Kim N. Pro-inflammatory Cytokines Modulating Osteoclast Differentiation and Function. JOURNAL OF RHEUMATIC DISEASES 2016. [DOI: 10.4078/jrd.2016.23.3.148] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Semun Seong
- Department of Pharmacology, Chonnam National University Medical School, Gwangju, Korea
- Department of Biomedical Sciences, Chonnam National University Medical School, Gwangju, Korea
| | - Jung Ha Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju, Korea
| | - Nacksung Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju, Korea
- Department of Biomedical Sciences, Chonnam National University Medical School, Gwangju, Korea
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38
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Lima CA, Lyra AC, Rocha R, Santana GO. Risk factors for osteoporosis in inflammatory bowel disease patients. World J Gastrointest Pathophysiol 2015; 6:210-218. [PMID: 26600979 PMCID: PMC4644885 DOI: 10.4291/wjgp.v6.i4.210] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2015] [Revised: 08/22/2015] [Accepted: 09/18/2015] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel disease (IBD) patients exhibit higher risk for bone loss than the general population. The chronic inflammation causes a reduction in bone mineral density (BMD), which leads to osteopenia and osteoporosis. This article reviewed each risk factor for osteoporosis in IBD patients. Inflammation is one of the factors that contribute to osteoporosis in IBD patients, and the main system that is involved in bone loss is likely RANK/RANKL/osteoprotegerin. Smoking is a risk factor for bone loss and fractures, and many mechanisms have been proposed to explain this loss. Body composition also interferes in bone metabolism and increasing muscle mass may positively affect BMD. IBD patients frequently use corticosteroids, which stimulates osteoclastogenesis. IBD patients are also associated with vitamin D deficiency, which contributes to bone loss. However, infliximab therapy is associated with improvements in bone metabolism, but it is not clear whether the effects are because of inflammation improvement or infliximab use. Ulcerative colitis patients with proctocolectomy and ileal pouches and Crohn’s disease patients with ostomy are also at risk for bone loss, and these patients should be closely monitored.
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Kang J, Boonanantanasarn K, Baek K, Woo KM, Ryoo HM, Baek JH, Kim GS. Hyperglycemia increases the expression levels of sclerostin in a reactive oxygen species- and tumor necrosis factor-alpha-dependent manner. J Periodontal Implant Sci 2015; 45:101-10. [PMID: 26131370 PMCID: PMC4485060 DOI: 10.5051/jpis.2015.45.3.101] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 05/19/2015] [Indexed: 12/17/2022] Open
Affiliation(s)
- Jiho Kang
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Kanitsak Boonanantanasarn
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea. ; Department of Anatomy, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Kyunghwa Baek
- Department of Pharmacology, College of Dentistry, Gangneung-Wonju National University, Gangneung, Korea
| | - Kyung Mi Woo
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Hyun-Mo Ryoo
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Jeong-Hwa Baek
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Gwan-Shik Kim
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
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40
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Siu S, Haraoui B, Bissonnette R, Bessette L, Roubille C, Richer V, Starnino T, McCourt C, McFarlane A, Fleming P, Kraft J, Lynde C, Gulliver W, Keeling S, Dutz J, Pope JE. Meta-Analysis of Tumor Necrosis Factor Inhibitors and Glucocorticoids on Bone Density in Rheumatoid Arthritis and Ankylosing Spondylitis Trials. Arthritis Care Res (Hoboken) 2015; 67:754-64. [DOI: 10.1002/acr.22519] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 10/25/2014] [Accepted: 11/11/2014] [Indexed: 12/25/2022]
Affiliation(s)
| | - Boulos Haraoui
- Centre Hospitalier de l'Universite de Montreal and Institut de Rhumatologie de Montreal; Montreal Quebec Canada
| | | | - Louis Bessette
- Centre Hospitalier Universitaire de Quebec; Quebec City Quebec Canada
| | - Camille Roubille
- University of Montreal Hospital Research Center and Notre-Dame Hospital; Montreal Quebec Canada
| | | | - Tara Starnino
- Sacre-Coeur Hospital of Montreal and The University of Montreal; Montreal Quebec Canada
| | - Collette McCourt
- University of British Columbia; Vancouver British Columbia Canada
| | | | | | - John Kraft
- Lynde Dermatology; Markham Ontario Canada
| | | | | | | | - Jan Dutz
- University of British Columbia; Vancouver British Columbia Canada
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Napimoga MH, Demasi APD, Jarry CR, Ortega MC, de Araújo VC, Martinez EF. In vitro evaluation of the biological effect of SOFAT on osteoblasts. Int Immunopharmacol 2015; 26:378-83. [PMID: 25916677 DOI: 10.1016/j.intimp.2015.04.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 03/30/2015] [Accepted: 04/14/2015] [Indexed: 01/12/2023]
Abstract
Osteoclastogenesis is regulated by osteoblasts especially through the production of receptor activator of nuclear factor kappa-B ligand (RANKL). Immune cells present in inflamed tissues markedly increase this process by upregulating RANKL directly or by secreting proinflammatory cytokines, which stimulate RANKL expression by osteoblasts. A novel T-cell-secreted cytokine, termed secreted osteoclastogenic factor of activated T cells (SOFAT) was recently described. To better understand how SOFAT affects bone metabolism, we investigated its effect on osteoblastic cells. We demonstrate here that SOFAT did not influence MC3T3 cells viability and proliferation, evaluated by trypan blue exclusion and MTT tests, respectively. SOFAT stimulated the secretion of IL-6, IL-10 and GM-CSF in MC3T3 cells, as shown by the analysis of an inflammatory cytokines ELISA array. The upregulation of the corresponding genes was checked by qPCR. Both RANKL mRNA and protein levels did not significantly change in the presence of SOFAT, evaluated by qPCR and western blotting, respectively. In addition, analysis of a PCR array for IL6/STAT3 pathway demonstrated that SOFAT induced the expression of BCL2, IL1B, IL10, IL22, IL2RA, IL4, IL6, TNFSF10 and PIAS3, while IL2, IL21, CD4, CSF3R and TNF were repressed. Our results confirm that the SOFAT mechanism of action is RANKL-independent and indicate that, by co-opting osteoblasts to increase the production of osteoclastogenic cytokines, SOFAT may exacerbate inflammation and support osteoclast formation and bone destruction.
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Affiliation(s)
- Marcelo Henrique Napimoga
- Laboratory of Immunology and Molecular Biology, São Leopoldo Mandic Institute and Research Center, Campinas/SP, Brazil.
| | - Ana Paula Dias Demasi
- Laboratory of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas/SP, Brazil
| | - Christian Rado Jarry
- Periodontal Medicine Research Group, Department of Periodontology, São Leopoldo Mandic Institute and Research Center, Campinas/SP, Brazil
| | - Mauricio Cardoso Ortega
- Periodontal Medicine Research Group, Department of Periodontology, São Leopoldo Mandic Institute and Research Center, Campinas/SP, Brazil
| | - Vera Cavalcanti de Araújo
- Laboratory of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas/SP, Brazil
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Markula-Patjas KP, Ivaska KK, Pekkinen M, Andersson S, Moilanen E, Viljakainen HT, Mäkitie O. High adiposity and serum leptin accompanied by altered bone turnover markers in severe juvenile idiopathic arthritis. J Rheumatol 2014; 41:2474-81. [PMID: 25320222 DOI: 10.3899/jrheum.131107] [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: 10/24/2022]
Abstract
OBJECTIVE To evaluate interactions between skeleton and adipose tissue, and association of adipokines and bone turnover markers with disease-related factors in patients with severe juvenile idiopathic arthritis (JIA). METHODS Forty-nine patients (median age 14.8 yrs, median disease duration 10.2 yrs) with refractory polyarticular JIA and 89 sex-matched and age-matched healthy controls participated in the study. Study subjects underwent clinical examination, body composition assessment with dual-energy X-ray absorptiometry, and analyses for leptin, adiponectin, and bone turnover markers. RESULTS Patients with JIA were shorter and more often overweight (p = 0.001) or obese (p < 0.001) than controls. They had significantly higher serum leptin, even when adjusted for fat mass (p < 0.001), than did controls. Adiponectin did not differ between the groups. Concentration of carboxyterminal telopeptide of type I collagen was higher (p = 0.006) in patients. The inverse association between leptin and bone turnover markers disappeared in controls but was strengthened in patients when adjusted for fat mass. Leptin, adiponectin, or bone markers did not associate with variables of disease activity. CONCLUSION Patients with severe JIA had high adiposity accompanied by increased bone resorption. Their serum leptin was higher, even independently of fat mass. Leptin tended to associate inversely with bone turnover markers but did not associate with variables of disease activity.
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Affiliation(s)
- Kati P Markula-Patjas
- From the Pediatric Research Center, University of Tampere and Tampere University Hospital, Tampere; Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku, Turku;Folkhälsan Research Center; Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki; The Immunopharmacology Research Group, University of Tampere School of Medicine, Tampere, Finland.K.P. Markula-Patjas, MD, Pediatric Research Center, University of Tampere and Tampere University Hospital; K.K. Ivaska, PhD, Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku; M. Pekkinen, PhD, Folkhälsan Research Center; S. Andersson, MD, PhD, Children's Hospital, Helsinki University Central Hospital and University of Helsinki; E. Moilanen, MD, PhD, The Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital; H.T. Viljakainen, PhD, Children's Hospital, Helsinki University Central Hospital and University of Helsinki; O. Mäkitie, MD, PhD, Folkhälsan Research Center, and Children's Hospital, Helsinki University Central Hospital and University of Helsinki.
| | - Kaisa K Ivaska
- From the Pediatric Research Center, University of Tampere and Tampere University Hospital, Tampere; Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku, Turku;Folkhälsan Research Center; Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki; The Immunopharmacology Research Group, University of Tampere School of Medicine, Tampere, Finland.K.P. Markula-Patjas, MD, Pediatric Research Center, University of Tampere and Tampere University Hospital; K.K. Ivaska, PhD, Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku; M. Pekkinen, PhD, Folkhälsan Research Center; S. Andersson, MD, PhD, Children's Hospital, Helsinki University Central Hospital and University of Helsinki; E. Moilanen, MD, PhD, The Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital; H.T. Viljakainen, PhD, Children's Hospital, Helsinki University Central Hospital and University of Helsinki; O. Mäkitie, MD, PhD, Folkhälsan Research Center, and Children's Hospital, Helsinki University Central Hospital and University of Helsinki
| | - Minna Pekkinen
- From the Pediatric Research Center, University of Tampere and Tampere University Hospital, Tampere; Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku, Turku;Folkhälsan Research Center; Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki; The Immunopharmacology Research Group, University of Tampere School of Medicine, Tampere, Finland.K.P. Markula-Patjas, MD, Pediatric Research Center, University of Tampere and Tampere University Hospital; K.K. Ivaska, PhD, Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku; M. Pekkinen, PhD, Folkhälsan Research Center; S. Andersson, MD, PhD, Children's Hospital, Helsinki University Central Hospital and University of Helsinki; E. Moilanen, MD, PhD, The Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital; H.T. Viljakainen, PhD, Children's Hospital, Helsinki University Central Hospital and University of Helsinki; O. Mäkitie, MD, PhD, Folkhälsan Research Center, and Children's Hospital, Helsinki University Central Hospital and University of Helsinki
| | - Sture Andersson
- From the Pediatric Research Center, University of Tampere and Tampere University Hospital, Tampere; Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku, Turku;Folkhälsan Research Center; Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki; The Immunopharmacology Research Group, University of Tampere School of Medicine, Tampere, Finland.K.P. Markula-Patjas, MD, Pediatric Research Center, University of Tampere and Tampere University Hospital; K.K. Ivaska, PhD, Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku; M. Pekkinen, PhD, Folkhälsan Research Center; S. Andersson, MD, PhD, Children's Hospital, Helsinki University Central Hospital and University of Helsinki; E. Moilanen, MD, PhD, The Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital; H.T. Viljakainen, PhD, Children's Hospital, Helsinki University Central Hospital and University of Helsinki; O. Mäkitie, MD, PhD, Folkhälsan Research Center, and Children's Hospital, Helsinki University Central Hospital and University of Helsinki
| | - Eeva Moilanen
- From the Pediatric Research Center, University of Tampere and Tampere University Hospital, Tampere; Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku, Turku;Folkhälsan Research Center; Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki; The Immunopharmacology Research Group, University of Tampere School of Medicine, Tampere, Finland.K.P. Markula-Patjas, MD, Pediatric Research Center, University of Tampere and Tampere University Hospital; K.K. Ivaska, PhD, Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku; M. Pekkinen, PhD, Folkhälsan Research Center; S. Andersson, MD, PhD, Children's Hospital, Helsinki University Central Hospital and University of Helsinki; E. Moilanen, MD, PhD, The Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital; H.T. Viljakainen, PhD, Children's Hospital, Helsinki University Central Hospital and University of Helsinki; O. Mäkitie, MD, PhD, Folkhälsan Research Center, and Children's Hospital, Helsinki University Central Hospital and University of Helsinki
| | - Heli T Viljakainen
- From the Pediatric Research Center, University of Tampere and Tampere University Hospital, Tampere; Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku, Turku;Folkhälsan Research Center; Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki; The Immunopharmacology Research Group, University of Tampere School of Medicine, Tampere, Finland.K.P. Markula-Patjas, MD, Pediatric Research Center, University of Tampere and Tampere University Hospital; K.K. Ivaska, PhD, Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku; M. Pekkinen, PhD, Folkhälsan Research Center; S. Andersson, MD, PhD, Children's Hospital, Helsinki University Central Hospital and University of Helsinki; E. Moilanen, MD, PhD, The Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital; H.T. Viljakainen, PhD, Children's Hospital, Helsinki University Central Hospital and University of Helsinki; O. Mäkitie, MD, PhD, Folkhälsan Research Center, and Children's Hospital, Helsinki University Central Hospital and University of Helsinki
| | - Outi Mäkitie
- From the Pediatric Research Center, University of Tampere and Tampere University Hospital, Tampere; Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku, Turku;Folkhälsan Research Center; Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki; The Immunopharmacology Research Group, University of Tampere School of Medicine, Tampere, Finland.K.P. Markula-Patjas, MD, Pediatric Research Center, University of Tampere and Tampere University Hospital; K.K. Ivaska, PhD, Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku; M. Pekkinen, PhD, Folkhälsan Research Center; S. Andersson, MD, PhD, Children's Hospital, Helsinki University Central Hospital and University of Helsinki; E. Moilanen, MD, PhD, The Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital; H.T. Viljakainen, PhD, Children's Hospital, Helsinki University Central Hospital and University of Helsinki; O. Mäkitie, MD, PhD, Folkhälsan Research Center, and Children's Hospital, Helsinki University Central Hospital and University of Helsinki
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43
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Linnewiel-Hermoni K, Motro Y, Miller Y, Levy J, Sharoni Y. Carotenoid derivatives inhibit nuclear factor kappa B activity in bone and cancer cells by targeting key thiol groups. Free Radic Biol Med 2014; 75:105-20. [PMID: 25078119 DOI: 10.1016/j.freeradbiomed.2014.07.024] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 07/05/2014] [Accepted: 07/19/2014] [Indexed: 11/25/2022]
Abstract
Aberrant activation of the nuclear factor kappa B (NFkB) transcription system contributes to cancer progression, and has a harmful effect on bone health. Several major components of the NFkB pathway such as IkB Kinase (IKK) and the NFkB subunits contain cysteine residues that are critical for their activity. The interaction of electrophiles with these cysteine residues results in NFkB inhibition. Carotenoids, hydrophobic plant pigments, are devoid of electrophilic groups, and we have previously demonstrated that carotenoid derivatives, but not the native compounds activate the Nrf2 transcription system. The aim of the current study was to examine whether carotenoid derivatives inhibit NFkB, and, if so, to determine the molecular mechanism underpinning the inhibitory action. We report in the present study that a mixture of oxidized derivatives, prepared by ethanol extraction from partially oxidized lycopene preparation, inhibited NFkB reporter gene activity. In contrast, the intact carotenoid was inactive. A series of synthetic dialdehyde carotenoid derivatives inhibited reporter activity as well as several stages of the NFkB pathway in both cancer and bone cells. The activity of the carotenoid derivatives depended on the reactivity of the electrophilic groups in reactions such as Michael addition to sulfhydryl groups of proteins. Specifically, carotenoid derivatives directly interacted with two key proteins of the NFkB pathway: the IKKβ and the p65 subunit. Direct interaction with IKKβ was found in an in vitro kinase assay with a recombinant enzyme. The inhibition by carotenoid derivatives of p65 transcriptional activity was observed in a reporter gene assay performed in the presence of excess p65. This inhibition action resulted, at least in part, from direct interaction of the carotenoid derivative with p65 leading to reduced binding of the protein to DNA as evidenced by electrophoretic mobility shift assay (EMSA) experiments. Importantly, we found by using mutation in key cysteine residues of both p65 and IKK that specific thiol groups are essential for NFkB inhibition by carotenoid derivatives. In conclusion, we propose that electrophilic carotenoid derivatives contribute to cancer prevention as well as bone health maintenance via the inhibition of the NFkB transcription system. Pivotal thiol groups of both IKK and p65 play a key role in this process.
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Affiliation(s)
- Karin Linnewiel-Hermoni
- Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev and Soroka Medical Center, Beer Sheva, Israel.
| | - Yair Motro
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Yifat Miller
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Joseph Levy
- Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev and Soroka Medical Center, Beer Sheva, Israel
| | - Yoav Sharoni
- Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev and Soroka Medical Center, Beer Sheva, Israel
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44
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Cytokine-mediated bone destruction in rheumatoid arthritis. J Immunol Res 2014; 2014:263625. [PMID: 25295284 PMCID: PMC4176903 DOI: 10.1155/2014/263625] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Accepted: 05/27/2014] [Indexed: 12/29/2022] Open
Abstract
Bone homeostasis, which involves formation and resorption, is an important process for maintaining adequate bone mass in humans. Rheumatoid arthritis (RA) is an autoimmune disease characterized by inflammation and bone loss, leading to joint destruction and deformity, and is a representative disease of disrupted bone homeostasis. The bone loss and joint destruction are mediated by immunological insults by proinflammatory cytokines and various immune cells. The connection between bone and immunity has been intensely studied and comprises the emerging field of osteoimmunology. Osteoimmunology is an interdisciplinary science investigating the interplay between the skeletal and the immune systems. The main contributors in osteoimmunology are the bone effector cells, such as osteoclasts or osteoblasts, and the immune cells, particularly lymphocytes and monocytes. Physiologically, osteoclasts originate from immune cells, and immune cells regulate osteoblasts and vice versa. Pathological conditions such as RA might affect these interactions, thereby altering bone homeostasis, resulting in the unfavorable outcome of bone destruction. In this review, we describe the osteoclastogenic roles of the proinflammatory cytokines and immune cells that are important in the pathophysiology of RA.
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45
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Tyagi AM, Mansoori MN, Srivastava K, Khan MP, Kureel J, Dixit M, Shukla P, Trivedi R, Chattopadhyay N, Singh D. Enhanced immunoprotective effects by anti-IL-17 antibody translates to improved skeletal parameters under estrogen deficiency compared with anti-RANKL and anti-TNF-α antibodies. J Bone Miner Res 2014; 29:1981-92. [PMID: 24677326 DOI: 10.1002/jbmr.2228] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 03/07/2014] [Accepted: 03/13/2014] [Indexed: 12/19/2022]
Abstract
Activated T cell has a key role in the interaction between bone and immune system. T cells produce proinflammatory cytokines, including receptor activator of NF-κB ligand (RANKL), tumor necrosis factor α (TNF-α), and interleukin 17 (IL-17), all of which augment osteoclastogenesis. RANKL and TNF-α are targeted by inhibitors such as denosumab, a human monoclonal RANKL antibody, and infliximab, which neutralizes TNF-α. IL-17 is also an important mediator of bone loss, and an antibody against IL-17 is undergoing phase II clinical trial for rheumatoid arthritis. Although there are a few studies showing suppression of Th17 cell differentiation and induction of regulatory T cells (Tregs) by infliximab, the effect of denosumab remains poorly understood. In this study, we investigated the effects of anti-TNF-α, anti-RANKL, or anti-IL-17 antibody administration to estrogen-deficient mice on CD4(+) T-cell proliferation, CD28 loss, Th17/Treg balance and B lymphopoesis, and finally, the translation of these immunomodulatory effects on skeletal parameters. Adult Balb/c mice were treated with anti-RANKL/-TNF-α/-IL-17 subcutaneously, twice a week, postovariectomy (Ovx) for 4 weeks. Animals were then autopsied; bone marrow cells were collected for FACS and RNA analysis and serum collected for ELISA. Bones were dissected for static and dynamic histomorphometry studies. We observed that although anti-RANKL and anti-TNF-α therapies had no effect on Ovx-induced CD4(+) T-cell proliferation and B lymphopoesis, anti-IL-17 effectively suppressed both events with concomitant reversal of CD28 loss. Anti-IL-17 antibody reduced proinflammatory cytokine production and induced Tregs. All three antibodies restored trabecular microarchitecture with comparable efficacy; however, cortical bone parameters, bone biomechanical properties, and histomorphometry were best preserved by anti-IL-17 antibody, likely attributable to its inhibitory effect on osteoblast apoptosis and increased number of bone lining cells and Wnt10b expression. Based on the superior immunoprotective effects of anti-IL-17, which appears to translate to a better skeletal preservation, we propose beginning clinical trials using a humanized antibody against IL-17 for treatment of postmenopausal osteoporosis.
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Affiliation(s)
- Abdul M Tyagi
- Division of Endocrinology and Centre for Research in Anabolic Skeletal Targets in Health and Illness (ASTHI), CSIR-Central Drug Research Institute, Lucknow, India
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46
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Haroon NN, Sriganthan J, Al Ghanim N, Inman RD, Cheung AM. Effect of TNF-alpha inhibitor treatment on bone mineral density in patients with ankylosing spondylitis: a systematic review and meta-analysis. Semin Arthritis Rheum 2014; 44:155-61. [PMID: 24909809 DOI: 10.1016/j.semarthrit.2014.05.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 04/10/2014] [Accepted: 05/05/2014] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Ankylosing spondylitis (AS) is a chronic inflammatory disease associated with an increased risk of osteoporosis and fractures. TNF inhibitors have been used to treat AS, but their effect on bone is unclear. Thus, we conducted a meta-analysis to study the effect of TNF inhibitors on spine and hip BMD in patients with AS. METHODS Two authors independently searched MEDLINE and PubMed for longitudinal studies that had assessed the effect of TNF inhibitors on BMD in patients with AS. Studies with a minimum follow-up period of 1 year were included. RESULTS Seven longitudinal studies and one randomized control trial were included, with a total of 568 AS patients (mean age range of 36-48 years and disease duration of 9-17 years). Lumbar spine BMD increased by 5.1% (95% CI: 4.0-6.1%, p = 0.00000) after 1 year of treatment with TNF inhibitors and by 8.6% (95% CI: 6.8-10.3%, p < 0.00001) after 2 years. Significant improvements in total hip BMD were also noted after 1 [1.8% (1.0-2.5%)] and 2 years [2.5% (1.9-3.0%)]. Compared to baseline, femoral neck BMD remained stable after 1 year [0.7% (-0.8% to 2.2%), p = 0.34]. No significant heterogeneity was noted amongst the included studies. CONCLUSIONS TNF inhibitors can increase lumbar spine and total hip BMD and maintain femoral neck BMD for up to 2 years in patients with AS. More research is needed to assess the effect of TNF inhibitors on bone quality and fracture risk.
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Affiliation(s)
| | | | - Nayef Al Ghanim
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Robert D Inman
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Angela M Cheung
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
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Kocijan R, Finzel S, Englbrecht M, Engelke K, Rech J, Schett G. Decreased quantity and quality of the periarticular and nonperiarticular bone in patients with rheumatoid arthritis: a cross-sectional HR-pQCT study. J Bone Miner Res 2014; 29:1005-14. [PMID: 24123099 DOI: 10.1002/jbmr.2109] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 09/08/2013] [Accepted: 09/19/2013] [Indexed: 01/01/2023]
Abstract
Rheumatoid arthritis (RA) is a highly bone destructive disease. Although it is well established that RA leads to bone loss and increased fracture risk, current knowledge on the microstructural changes of bone in RA is still limited. The purpose of this study was to assess the microstructure of periarticular and nonperiarticular bone in female and male RA patients and compare it with respective healthy controls. We performed two high-resolution peripheral quantitative computed tomography (HR-pQCT; Xtreme-CT) scans, one of the distal radius and one of the ultradistal radius in 90 patients with RA (60 females, 30 males) and 70 healthy controls (40 females, 30 males) matched for sex, age, and body mass index. Volumetric bone mineral density (vBMD), bone geometry, and bone microstructure including trabecular bone volume fraction (BV/TV), trabecular number (Tb.N), trabecular thickness (Tb.Th), cortical thickness (Ct.Th) and cortical porosity (Ct.Po) were assessed. At the distal and ultradistal radius, trabecular (p=0.005 and p<0.001) and cortical BMD (p<0.001 and p<0.001) were significantly decreased in male and female patients with RA, respectively. BV/TV was also decreased at both sites, based on lower Tb.N in female RA (p<0.001 for both sites) and lower Tb.Th (p=0.034 and p=0.005) in male RA patients compared with respective healthy controls. Cortical thinning (p=0.018 and p=0.002) but not Ct.Po (p=0.070 and p=0.275) was pronounced in male and female RA patients at the distal radius. Cortical perimeter was increased in male and female RA patients at both sites. Multiple regression models showed that bone geometry (cortical perimeter) is predominantly influenced by age of the RA patient, cortical thickness by both age and disease duration, and trabecular microstructure predominantly by the disease duration. In summary, these data show profound deterioration of bone microstructure in the appendicular skeleton of RA patients at both periarticular and nonperiarticular sites.
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Affiliation(s)
- Roland Kocijan
- Department of Internal Medicine 3 and Institute of Clinical Immunology, University of Erlangen-Nuremberg, Erlangen, Germany; St. Vincent Hospital-Medical Department II, The VINFORCE Study Group, Academic Teaching Hospital of Medical University of Vienna, Vienna, Austria
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48
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Napoli N, Strollo R, Paladini A, Briganti SI, Pozzilli P, Epstein S. The alliance of mesenchymal stem cells, bone, and diabetes. Int J Endocrinol 2014; 2014:690783. [PMID: 25140176 PMCID: PMC4124651 DOI: 10.1155/2014/690783] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Accepted: 06/11/2014] [Indexed: 12/15/2022] Open
Abstract
Bone fragility has emerged as a new complication of diabetes. Several mechanisms in diabetes may influence bone homeostasis by impairing the action between osteoblasts, osteoclasts, and osteocytes and/or changing the structural properties of the bone tissue. Some of these mechanisms can potentially alter the fate of mesenchymal stem cells, the initial precursor of the osteoblast. In this review, we describe the main factors that impair bone health in diabetic patients and their clinical impact.
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Affiliation(s)
- Nicola Napoli
- Division of Endocrinology and Diabetes, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy
- Division of Bone and Mineral Diseases, Washington University in St Louis, St Louis, MO, USA
- *Nicola Napoli:
| | - Rocky Strollo
- Division of Endocrinology and Diabetes, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy
| | - Angela Paladini
- Division of Endocrinology and Diabetes, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy
| | - Silvia I. Briganti
- Division of Endocrinology and Diabetes, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy
| | - Paolo Pozzilli
- Division of Endocrinology and Diabetes, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy
- Centre for Diabetes, The Blizard Building, Barts and The London School of Medicine, Queen Mary, University of London, London, UK
| | - Sol Epstein
- Division of Endocrinology, Mount Sinai School of Medicine, New York, USA
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Coste E, Greig IR, Mollat P, Rose L, Gray M, Ralston SH, van ‘t Hof RJ. Identification of small molecule inhibitors of RANKL and TNF signalling as anti-inflammatory and antiresorptive agents in mice. Ann Rheum Dis 2013; 74:220-6. [DOI: 10.1136/annrheumdis-2013-203700] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
IntroductionInflammatory joint diseases such as rheumatoid arthritis are associated with local bone erosions and systemic bone loss, mediated by increased osteoclastic activity. The receptor activator of nuclear factor (NF) κB ligand (RANKL) plays a key role in mediating inflammation-induced bone loss, whereas tumour necrosis factor (TNF) plays a central role in the inflammatory process. Here we tested whether a recently identified class of small molecule inhibitors of RANKL signalling (ABD compounds) also affect TNF signalling and whether these compounds inhibit inflammation in an animal model of rheumatoid arthritis.MethodsThe inhibitory effects of the ABD compounds on TNF-induced signalling were tested in mouse macrophage cultures by western blotting and in an NFκB luciferase-reporter cell line. The anti-inflammatory effects of the compounds were tested in the mouse collagen-induced arthritis model of rheumatoid arthritis.ResultsThe ABD compounds ABD328 and ABD345 both inhibited TNF-induced activation of the NFκB pathway and the extracellular signal-regulated kinase (ERK) and Jun kinase (JNK) mitogen activated protein kinases (MAPKs). When tested in the mouse collagen-induced arthritis model of rheumatoid arthritis, the compounds suppressed inflammatory arthritis, inhibited joint destruction and prevented systemic bone loss. Furthermore, one of the compounds (ABD328) showed oral activity.ConclusionsHere we describe a novel class of small molecule compounds that inhibit both RANKL- and TNF-induced NFκB and MAPK signalling in osteoclasts and macrophages, and inflammation and bone destruction in a mouse model of rheumatoid arthritis. These novel compounds therefore represent a promising new class of treatments for inflammatory diseases, such as rheumatoid arthritis.
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Musso G, Paschetta E, Gambino R, Cassader M, Molinaro F. Interactions among bone, liver, and adipose tissue predisposing to diabesity and fatty liver. Trends Mol Med 2013; 19:522-35. [PMID: 23816817 DOI: 10.1016/j.molmed.2013.05.006] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Revised: 05/21/2013] [Accepted: 05/23/2013] [Indexed: 02/06/2023]
Abstract
Growing epidemiological evidence connects obesity and its complications, including metabolic syndrome, diabetes, and nonalcoholic fatty liver disease (NAFLD) to reduced bone health and osteoporosis. Parallel to human studies, experimental data disclosed a complex network of interaction among adipose tissue, the liver, and the bone, which reciprocally modulate the function of each other. The main mediators of such crosstalk include hormonal/cytokine signals from the bone (osteopontin, osteocalcin, and osteoprotegerin), the liver (fetuin-A), and adipose tissue [leptin, tumor necrosis factor-α (TNF-α), and adiponectin]. Dysregulation of this network promotes the development of diabesity, NAFLD, and osteoporosis. We will review recent advances in understanding the mechanisms of bone-liver-adipose tissue interaction predisposing to obesity, diabetes, NAFLD, and osteoporosis and their potential clinical implications.
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