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Bone-sparing effects of rituximab and body composition analysis in a cohort of postmenopausal women affected by rheumatoid arthritis - retrospective study. Reumatologia 2021; 59:206-210. [PMID: 34538950 PMCID: PMC8436793 DOI: 10.5114/reum.2021.108430] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 08/06/2021] [Indexed: 12/04/2022] Open
Abstract
Objective Osteoporosis is the most common bone tissue disease and it is characterized by a reduced bone mineral density (BMD). The main physiopathological mechanisms converge on the uncoupling between bone formation and resorption, thus leading to an enhanced risk of fractures. Several papers have documented the inverse relationships linking high inflammatory cytokines, anti-citrullinated protein antibodies, rheumatoid factor, and BMD in rheumatoid arthritis (RA). Rituximab (RTX) is a chimeric monoclonal antibody directed against the CD20 receptor of B cells. Since the Food and Drug Administration approved it for RA in 2006, there have been many clinical experiences regarding its use. Nevertheless, few studies evaluate the effect of rituximab on BMD. RA is a disease characterized by immune dysfunction with high levels of inflammatory cytokines, autoantibodies, and it is reasonable that a B cell depleting therapy could restore a physiological cytokine balance, thus exerting an osteoprotective effect on the bone tissue. The purpose of this paper is to highlight any difference in BMD and to assess differences in body composition over a retrospective 18-month follow-up period after RTX treatment with a B cell depleting therapy. Material and methods We analyzed by dual energy X-ray absorptiometry BMD expressed as g/cm2 and body composition modifications over 18 months with RTX treatment of 20 postmenopausal RA patients. Results After eighteen months of therapy with RTX, a statistically significant increase in vertebral (L1–L4) BMD and the stability of femoral BMD were documented. Conclusions Rituximab is associated with an improvement of vertebral and preservation of femoral BMD, suggesting a bone-sparing effect due to B cell depletion. Furthermore, patients displayed a redistribution of fat masses toward the hip region.
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Moreira FRC, de Oliveira TA, Ramos NE, Abreu MAD, Simões E Silva AC. The role of renin angiotensin system in the pathophysiology of rheumatoid arthritis. Mol Biol Rep 2021; 48:6619-6629. [PMID: 34417705 DOI: 10.1007/s11033-021-06672-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 08/18/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND In rheumatoid arthritis (RA) and osteoarthritis (OA), chronic inflammatory processes lead to progresive joint destruction. The renin-angiotensin system (RAS) is involved in the pathogenesis of RA and OA. The aim of this mini-review article is to summarize evidence on the role of RAS in RA and OA. METHODS A non-systematic search in Pubmed included terms as "rheumatoid arthritis", "renin angiotensin system", "osteopenia", "RANKL", "DKK-1", "MMP", "inflammation", "angiogenesis", "local renin-angiotensin system", "angiotensin converting enzyme", "AT2 receptor", "Ang-(1-7)", "VEGF", "angiotensine receptor blocker", "angiotensin converting enzyme inhibitors", "renin inhibitors". RESULTS Both RAS axes, the classical one, formed by angiotensin converting enzyme (ACE), angiotensin (Ang) II and AT1 receptor (AT1R) and the counter-regulatory one, composed by ACE2, Ang-(1-7) and the Mas receptor, modulate inflammation and tissue damage. Ang II activates pro-inflammatory mediators and oxidative stress. Conversely, Ang-(1-7) exerts anti-inflammatory actions, decreasing cytokine release, leukocyte attraction, density of vessels, tissue damage and fibrosis. Angiogenesis facilitates inflammatory cells invasion, while osteopenia causes joint dysfunction. Up-regulated osteoclastogenisis and down-regulated osteoblastogeneses were associaed with the activation of the classical RAS axis. Three different pathways, RANKL, DKK-1 and MMPs are enhanced by classical RAS activation. The treatment of RA included methotrexate and corticosteroids, which can cause side effects. Studies with angiotensin receptor blockers (ARBs), angiotensin converting enzyme inhibitors (ACEi) and renin inhibitors have been conducted in experimental and clinical RA with promising results. CONCLUSION The classical RAS activation is an important mechanism in RA pathogenesis and the benefit of ARB and ACEi administration should be further investigated.
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Affiliation(s)
- Fernanda Rocha Chaves Moreira
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Avenida Alfredo Balena, 190, 2nd floor, room #281, Belo Horizonte, MG, 30130-100, Brazil
| | - Tiago Almeida de Oliveira
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Avenida Alfredo Balena, 190, 2nd floor, room #281, Belo Horizonte, MG, 30130-100, Brazil
| | - Nádia Eliza Ramos
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Avenida Alfredo Balena, 190, 2nd floor, room #281, Belo Horizonte, MG, 30130-100, Brazil
| | - Maria Augusta Duarte Abreu
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Avenida Alfredo Balena, 190, 2nd floor, room #281, Belo Horizonte, MG, 30130-100, Brazil
| | - Ana Cristina Simões E Silva
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Avenida Alfredo Balena, 190, 2nd floor, room #281, Belo Horizonte, MG, 30130-100, Brazil.
- Department of Pediatrics, Faculty of Medicine, UFMG, Belo Horizonte, Brazil.
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Schündeln MM, Höppner J, Meyer FL, Schmuck W, Kauther MD, Hilken G, Levkau B, Rauner M, Grasemann C. Prednisone prevents particle induced bone loss in the calvaria mouse model. Heliyon 2021; 7:e07828. [PMID: 34471710 PMCID: PMC8387912 DOI: 10.1016/j.heliyon.2021.e07828] [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: 04/06/2021] [Revised: 07/03/2021] [Accepted: 08/16/2021] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Glucocorticoids are essential in the treatment of many chronic inflammatory and malignant diseases but are known to have detrimental effects on bone. This study aimed to investigate the effects of prednisone on osteoclast functioning in vivo in the calvaria particle-induced bone loss mouse model. METHODS 12-week-old male C57BL6/J mice received subcutaneously implanted prednisone (2.5 mg/d, 60 day release (n = 14)) or placebo pellets (n = 10). Osteolysis of the calvaria bone was induced two weeks later by application of ultra-high-molecular-weight polyethylene- (UHMWPE) particles to the dome (vs sham operation). The extent of osteolysis was determined histologically and by micro-computer tomography. RESULTS Prednisone significantly inhibited particle-induced osteolysis in the skull. No significant difference in osteoclast numbers was seen in mice with prednisone vs placebo treatment. Prednisone treatment alone without particle application did not reduce bone mineral density or deterioration in bone microarchitecture parameters. CONCLUSIONS The calvaria particle-induced bone loss mouse model can be adapted to investigate osteoclast activity in vivo and the effect of prednisone on osteoclasts. In this preventive experimental design, the application of short-term low-dose prednisone has osteoprotective effects without measurable systemic side effects on bone parameters.
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Affiliation(s)
- Michael M. Schündeln
- Division of Pediatric Hematology and Oncology, Department of Pediatrics III, University Hospital Essen, University of Duisburg-Essen, Germany
| | - Jakob Höppner
- Department of Pediatrics and CeSER, Katholisches Klinikum Bochum, Ruhr-University Bochum, Bochum, Germany
| | - Felix L. Meyer
- Department of Pediatrics II, University Hospital Essen, University of Duisburg-Essen, Germany
| | - Wiebke Schmuck
- Department of Pediatrics II, University Hospital Essen, University of Duisburg-Essen, Germany
| | - Max D. Kauther
- Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital Essen, Germany
- Department for Orthopedics, Agaplesion Diakonieklinikum, Rotenburg Wümme, Germany
| | - Gero Hilken
- Central Animal Laboratory, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Bodo Levkau
- Institute for Molecular Medicine III, University Hospital Düsseldorf and Heinrich-Heine-University Düsseldorf, Germany
| | - Martina Rauner
- Department of Medicine III, Dresden Technical University Medical Center, Dresden, Germany
| | - Corinna Grasemann
- Department of Pediatrics and CeSER, Katholisches Klinikum Bochum, Ruhr-University Bochum, Bochum, Germany
- Department of Pediatrics II, University Hospital Essen, University of Duisburg-Essen, Germany
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Pawar A, Desai RJ, He M, Bessette L, Kim SC. Comparative Risk of Nonvertebral Fractures Among Patients With Rheumatoid Arthritis Treated With Biologic or Targeted Synthetic Disease-Modifying Antirheumatic Drugs. ACR Open Rheumatol 2021; 3:531-539. [PMID: 34196497 PMCID: PMC8363846 DOI: 10.1002/acr2.11292] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 05/17/2021] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE The objective of this study was to compare the incidence rate of nonvertebral osteoporotic fractures (NVFs) in patients with rheumatoid arthritis (RA) initiating one of the nine biologic or targeted synthetic disease-modifying antirheumatic drugs (b/tsDMARDs). METHODS We analyzed claims data from Optum (2008 to March 2019), Medicare, and MarketScan (2008-2017) to identify adults with RA who newly initiated b/tsDMARDs. Adalimumab was the most frequently used and was thus selected as a reference. The primary outcome was a composite of incident NVFs, including hip, humerus, pelvis, and wrist fractures, based on validated algorithms. We adjusted for greater than 70 potential confounders in each database through propensity score-based inverse probability treatment weighting. Follow-up time started the day after cohort entry until the first occurrence of one of the following: outcome, treatment discontinuation, switching, nursing home admission, death, disenrollment, or end of study period. For each drug comparison, weighted Cox proportional hazards models estimated the hazard ratios (HRs) and 95% confidence intervals (CIs). Secondary analyses were conducted in patients switching from a tumor necrosis factor inhibitor to a different b/tsDMARD. RESULTS A total of 134,693 b/tsDMARD initiators were identified across three databases. The adjusted HRs showed similar risk of composite NVFs in all b/tsDMARD exposures compared with adalimumab: abatacept, HR 1.03 (95% CI 0.82-1.30); certolizumab, HR 1.08 (95% CI 0.79-1.49); etanercept, HR 1.12 (95% CI 0.89-1.40); golimumab, HR 0.91 (95% CI 0.59-1.39); infliximab, HR 1.03 (95% CI 0.84-1.28); rituximab, HR 1.07 (95% CI 0.74-1.55); tocilizumab, HR 1.24 (95% CI 0.71-2.17); and tofacitinib, HR 1.07 (95% CI 0.69-1.64). Secondary analyses showed similar results. CONCLUSION This multidatabase cohort study found no differences in the risk of NVFs across individual b/tsDMARDs for RA, which provides reassurance to physicians prescribing b/tsDMARDs, especially to patients at high risk of developing NVFs.
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Affiliation(s)
- Ajinkya Pawar
- Brigham and Women’s Hospital and Harvard Medical SchoolBostonMassachusetts
| | - Rishi J. Desai
- Brigham and Women’s Hospital and Harvard Medical SchoolBostonMassachusetts
| | - Mengdong He
- Brigham and Women’s Hospital and Harvard Medical SchoolBostonMassachusetts
| | - Lily Bessette
- Brigham and Women’s Hospital and Harvard Medical SchoolBostonMassachusetts
| | - Seoyoung C. Kim
- Brigham and Women’s Hospital and Harvard Medical SchoolBostonMassachusetts
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Roudsari PP, Alavi-Moghadam S, Rezaei-Tavirani M, Goodarzi P, Tayanloo-Beik A, Sayahpour FA, Larijani B, Arjmand B. The Outcome of Stem Cell-Based Therapies on the Immune Responses in Rheumatoid Arthritis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1326:159-186. [PMID: 32926346 DOI: 10.1007/5584_2020_581] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Rheumatoid arthritis as a common autoimmune inflammatory disorder with unknown etiology can affect 0.5-1% of adults in developed countries. It involves more than just the patient's joints and can be accompanied by several comorbidities and affect cardiovascular, pulmonary, and some other systems of the human body. Although cytokine-mediated pathways are mentioned to have a central role in RA pathogenesis, adaptive and innate immune systems and intracellular signaling pathways all have important roles in this process. Non-steroidal anti-inflammatory drugs, glucocorticoids, conventional disease-modifying anti-rheumatic drugs, and biological agents are some mentioned medications used for RA. They are accompanied by some adverse effects and treatment failures which elucidates the needing for novel and more powerful therapeutic approaches. Stem cell-based therapies and their beneficial effects on therapeutic processes of different diseases have been founded so far. They can be an alternative and promising therapeutic approach for RA, too; due to their effects on immune responses of the disease. This review, besides some explanations about RA characteristics, addresses the outcome of the stem cell-based therapies including mesenchymal stem cell transplantation and hematopoietic stem cell transplantation for RA and explains their effects on the disease improvement.
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Affiliation(s)
- Peyvand Parhizkar Roudsari
- Metabolomics and Genomics Research Center, Endocrinology and Metabolism Molecular Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Sepideh Alavi-Moghadam
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Parisa Goodarzi
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Akram Tayanloo-Beik
- Metabolomics and Genomics Research Center, Endocrinology and Metabolism Molecular Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Forough Azam Sayahpour
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical sciences, Tehran, Iran
| | - Babak Arjmand
- Metabolomics and Genomics Research Center, Endocrinology and Metabolism Molecular Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran. .,Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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56
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Kawashiri SY, Endo Y, Nishino A, Okamoto M, Tsuji S, Takatani A, Shimizu T, Sumiyoshi R, Koga T, Iwamoto N, Ichinose K, Tamai M, Nakamura H, Origuchi T, Aramaki T, Ueki Y, Yoshitama T, Eiraku N, Matsuoka N, Okada A, Fujikawa K, Hamada H, Nagano S, Tada Y, Kawakami A. Effect of abatacept treatment on serum osteoclast-related biomarkers in patients with rheumatoid arthritis (RA): A multicenter RA ultrasound prospective cohort in Japan. Medicine (Baltimore) 2021; 100:e26592. [PMID: 34260539 PMCID: PMC8284735 DOI: 10.1097/md.0000000000026592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 06/17/2021] [Indexed: 11/25/2022] Open
Abstract
We evaluated the effect of abatacept treatment on osteoclast-related biomarkers and explored whether the biomarkers are associated with the therapeutic response in rheumatoid arthritis (RA) patients treated with abatacept.We enrolled 44 RA patients treated with abatacept from a multicenter prospective ultrasound cohort study of patients who received biologic or targeted synthetic disease-modifying antirheumatic drug therapy. We evaluated the disease activity score (DAS) 28-CRP (C-reactive protein), musculoskeletal ultrasound scores including the total grayscale score (GS)/power Doppler (PD) score and the serum concentrations of isoform 5b of tartrate-resistant acid phosphate (TRACP-5b) and soluble receptor activator of nuclear factor-κB ligand (sRANKL) at baseline and at 3 and 6 months of treatment. "PD responder" was defined as a patient whose Δtotal PD score over 6 months was greater than the median change of that.Abatacept significantly improved DAS28-CRP as well as the total GS/PD score over 6 months. Serum TRACP-5b was significantly elevated and serum sRANKL was significantly decreased at 6 months (P < .0001 and P < .01, respectively). At 6 months, serum sRANKL was significantly decreased in the patients who achieved DAS28-CRP remission and the PD responders but not in those who did not. However, serum TRACP-5b rose regardless of the therapeutic response.Among RA patients treated with abatacept, serum sRANKL decreased in the patients with a good therapeutic response, but serum TRACP-5b elevated paradoxically regardless of the therapeutic response.
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Affiliation(s)
- Shin-Ya Kawashiri
- Departments of Community Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yushiro Endo
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Ayako Nishino
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Momoko Okamoto
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Sosuke Tsuji
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Ayuko Takatani
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Toshimasa Shimizu
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Remi Sumiyoshi
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tomohiro Koga
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Naoki Iwamoto
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kunihiro Ichinose
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Mami Tamai
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Hideki Nakamura
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tomoki Origuchi
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Toshiyuki Aramaki
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yukitaka Ueki
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study (KUDOS) Group, Japan
| | - Tamami Yoshitama
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study (KUDOS) Group, Japan
| | - Nobutaka Eiraku
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study (KUDOS) Group, Japan
| | - Naoki Matsuoka
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study (KUDOS) Group, Japan
| | - Akitomo Okada
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study (KUDOS) Group, Japan
| | - Keita Fujikawa
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study (KUDOS) Group, Japan
| | - Hiroaki Hamada
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study (KUDOS) Group, Japan
| | - Shuji Nagano
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study (KUDOS) Group, Japan
| | - Yoshifumi Tada
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study (KUDOS) Group, Japan
| | - Atsushi Kawakami
- Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Guañabens N, Olmos JM, Hernández JL, Cerdà D, Hidalgo Calleja C, Martinez López JA, Arboleya L, Aguilar Del Rey FJ, Martinez Pardo S, Ros Vilamajó I, Suris Armangué X, Grados D, Beltrán Audera C, Suero-Rosario E, Gómez Gracia I, Salmoral Chamizo A, Martín-Esteve I, Florez H, Naranjo A, Castañeda S, Ojeda Bruno S, García Carazo S, García Vadillo A, López Vives L, Martínez-Ferrer À, Borrell Paños H, Aguado Acín P, Castellanos-Moreira R, Tebé C, Gómez-Vaquero C. Vertebral fractures are increased in rheumatoid arthritis despite recent therapeutic advances: a case-control study. Osteoporos Int 2021; 32:1333-1342. [PMID: 33459805 DOI: 10.1007/s00198-021-05824-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 01/04/2021] [Indexed: 10/22/2022]
Abstract
UNLABELLED Prevalence and risk factors of vertebral fractures in postmenopausal RA women were assessed in 323 patients and compared with 660 age-matched women. Of patients, 24.15% had at least one vertebral fracture vs.16.06% of controls. Age, glucocorticoids and falls were the main fracture risks. Vertebral fractures were associated with disease severity. INTRODUCTION There is little quality data on the updated prevalence of fractures in rheumatoid arthritis (RA) that may have changed due to advances in the therapeutic strategy in recent years. This study was aimed at analysing the prevalence and risk factors of vertebral fractures in postmenopausal women with RA and comparing it with that of the general population. METHODS We included 323 postmenopausal women diagnosed with RA from 19 Spanish Rheumatology Departments, randomly selected and recruited in 2018. Lateral radiographs of the thoracic and lumbar spine were obtained to evaluate morphometric vertebral fractures and the spinal deformity index. We analysed subject characteristics, factors related to RA, and fracture risk factors. The control group consisted of 660 age-matched Spanish postmenopausal women from the population-based Camargo cohort. RESULTS Seventy-eight (24.15%) RA patients had at least one vertebral fracture. RA patients had increased fracture risk compared with controls (106 of 660, 16.06%) (p = 0.02). Logistic regression analysis showed that age (OR 2.17; 95% CI 1.27-4.00), glucocorticoids (OR 3.83; 95% CI 1.32-14.09) and falls (OR 3.57; 95% CI 1.91-6.86) were the independent predictors of vertebral fractures in RA patients. The subgroup with vertebral fractures had higher disease activity (DAS28: 3.15 vs. 2.78, p = 0.038) and disability (HAQ: 0.96 vs. 0.63, p = 0.049), as compared with those without vertebral fractures. CONCLUSION The risk of vertebral fracture in RA is still high in recent years, when compared with the general population. The key determinants of fracture risk are age, glucocorticoids and falls. Patients with vertebral fractures have a more severe RA.
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Affiliation(s)
- N Guañabens
- Department of Rheumatology, Hospital Clínic, CIBERehd, IDIBAPS, University of Barcelona, Barcelona, Spain.
| | - J M Olmos
- Departament of Internal Medicine, University Hospital Marqués de Valdecilla-IDIVAL, Universidad de Cantabria, Santander, Spain
| | - J L Hernández
- Departament of Internal Medicine, University Hospital Marqués de Valdecilla-IDIVAL, Universidad de Cantabria, Santander, Spain
| | - D Cerdà
- Department of Rheumatology, Hospital Moisès Broggi, Sant Joan Despí, University of Barcelona, Barcelona, Spain
| | - C Hidalgo Calleja
- Department of Rheumatology, University Hospital de Salamanca, Salamanca, Spain
| | - J A Martinez López
- Department of Rheumatology, University Hospital Fundación Jiménez Díaz, Madrid, Spain
| | - L Arboleya
- Department of Rheumatology, University Hospital Central de Asturias, Oviedo, Spain
| | - F J Aguilar Del Rey
- Department of Rheumatology, University Hospital Virgen de la Victoria, Malaga, Spain
| | - S Martinez Pardo
- Department of Rheumatology, University Hospital Mutua Terrassa, Barcelona, Spain
| | - I Ros Vilamajó
- Department of Rheumatology, Hospital Son Llàtzer, Palma de Mallorca, Spain
| | - X Suris Armangué
- Department of Rheumatology, Hospital General de Granollers, Granollers, International University of Catalunya, Barcelona, Spain
| | - D Grados
- Department of Rheumatology, Hospital d'Igualada, Igualada, Barcelona, Spain
| | - C Beltrán Audera
- Department of Rheumatology, University Hospital Miguel Servet, Zaragoza, Spain
| | - E Suero-Rosario
- Department of Rheumatology, Hospital General Mateu Orfila, Maó, Spain
| | - I Gómez Gracia
- Department of Rheumatology, University Hospital Reina Sofía, Cordoba, Spain
| | - A Salmoral Chamizo
- Department of Rheumatology, University Hospital Reina Sofía, Cordoba, Spain
| | - I Martín-Esteve
- Department of Rheumatology, Hospital General Mateu Orfila, Maó, Spain
| | - H Florez
- Department of Rheumatology, Hospital Clínic, CIBERehd, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - A Naranjo
- Department of Rheumatology, University Hospital de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, Spain
| | - S Castañeda
- Department of Rheumatology, University Hospital La Princesa IIS-IP, Madrid, Spain
| | - S Ojeda Bruno
- Department of Rheumatology, University Hospital de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, Spain
| | - S García Carazo
- Department of Rheumatology, University Hospital La Paz, Madrid, Spain
| | - A García Vadillo
- Department of Rheumatology, University Hospital La Princesa IIS-IP, Madrid, Spain
| | - L López Vives
- Department of Rheumatology, Hospital Sant Rafael, Barcelona, Spain
| | - À Martínez-Ferrer
- Department of Rheumatology, University Hospital Doctor Peset, Valencia, Spain
| | - H Borrell Paños
- Department of Rheumatology, Hospital Sant Rafael, Barcelona, Spain
| | - P Aguado Acín
- Department of Rheumatology, University Hospital La Paz, Madrid, Spain
| | - R Castellanos-Moreira
- Department of Rheumatology, Hospital Clínic, CIBERehd, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - C Tebé
- Biostatistics Unit, Bellvitge Biomedical Research Institute (IDIBELL) L'Hospitalet de Llobregat, Barcelona, Spain
| | - C Gómez-Vaquero
- Department of Rheumatology, University Hospital de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
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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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Bugatti S, Bogliolo L, Manzo A, De Stefano L, Delvino P, Motta F, Montecucco C. Impact of Anti-Citrullinated Protein Antibodies on Progressive Systemic Bone Mineral Density Loss in Patients With Early Rheumatoid Arthritis After Two Years of Treat-to-Target. Front Immunol 2021; 12:701922. [PMID: 34194443 PMCID: PMC8236980 DOI: 10.3389/fimmu.2021.701922] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 06/01/2021] [Indexed: 01/05/2023] Open
Abstract
Objectives To investigate the association of anti-citrullinated protein antibodies (ACPA) with changes in systemic bone mineral density (BMD) in patients with early rheumatoid arthritis (RA) after two years of treat-to-target. Methods BMD was measured at the lumbar spine (LS) and femoral neck (FN) in 100 patients with recent onset RA at baseline and after 24 months of treatment aimed at low disease activity (LDA) according to the 28-joints disease activity score (DAS28 <3.2). Multivariable regression analyses were performed to determine independent associations between autoantibodies and other disease and treatment-related parameters with BMD loss. Results After 24 months, the majority of the patients were at least in LDA (78%), with slightly more ACPA-positive subjects achieving the target. The BMD had significantly decreased at both the LS (mean [SD] percent loss -1.8 [6.2], p=0.03) and the FN (-2.4 [7.3], p=0.03) in ACPA-positive but not in ACPA-negative patients. Consequently, the proportion of patients with reduced BMD (Z score ≤-1) after 24 months was significantly higher among ACPA-positive patients at both the spine (39.5% vs 19.3%, p=0.05) and the hip (37.2% vs 12.2%, p=0.007). The association between ACPA and BMD loss was independent of other variables including age, gender, disease activity, cumulative dose of glucocorticoids and duration of therapy with bisphosphonates at the LS but not the FN. Conclusions ACPA are associated with ongoing BMD loss at the spine despite suppression of inflammation and adoption of prophylactic measures. ACPA-positive RA patients should be therefore strictly monitored for the development of osteoporosis.
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Affiliation(s)
- Serena Bugatti
- Division of Rheumatology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy.,Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | - Laura Bogliolo
- Division of Rheumatology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy
| | - Antonio Manzo
- Division of Rheumatology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy.,Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | - Ludovico De Stefano
- Division of Rheumatology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy.,Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | - Paolo Delvino
- Division of Rheumatology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy.,Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | - Francesca Motta
- Division of Rheumatology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy.,Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | - Carlomaurizio Montecucco
- Division of Rheumatology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy.,Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
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Differentiating the causes of adynamic bone in advanced chronic kidney disease informs osteoporosis treatment. Kidney Int 2021; 100:546-558. [PMID: 34102219 DOI: 10.1016/j.kint.2021.04.043] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 04/15/2021] [Accepted: 04/20/2021] [Indexed: 12/15/2022]
Abstract
Patients with chronic kidney disease (CKD) have an increased fracture risk because of impaired bone quality and quantity. Low bone mineral density predicts fracture risk in all CKD stages, including advanced CKD (CKD G4-5D). Pharmacological therapy improves bone mineral density and reduces fracture risk in moderate CKD. Its efficacy in advanced CKD remains to be determined, although pilot studies suggest a positive effect on bone mineral density. Currently, antiresorptive agents are the most commonly prescribed drugs for the prevention and therapy of osteoporosis. Their use in advanced CKD has been limited by the lack of large clinical trials and fear of causing kidney dysfunction and adynamic bone disease. In recent decades, adynamic bone disease has evolved as the most predominant form of renal osteodystrophy, commonly associated with poor outcomes, including premature mortality and progression of vascular calcification. Evolving evidence indicates that reduction of bone turnover by parathyroidectomy or pharmacological therapies, such as calcimimetics and antiresorptive agents, are not associated with premature mortality or accelerated vascular calcification in CKD. In contrast, chronic inflammation, oxidative stress, malnutrition, and diabetes can induce low bone turnover and associate with poor prognosis. Thus, the conditions causing suppression of bone turnover rather than the low bone turnover per se may account for the perceived association with outcomes. Anabolic treatment, in contrast, has been suggested to improve turnover and bone mass in patients with advanced CKD and low bone turnover; however, uncertainty about safety even exceeds that of antiresorptive agents. Here, we critically review the pathophysiological concept of adynamic bone disease and discuss the effect of low bone turnover on the safety and efficacy of anti-osteoporosis pharmacotherapy in advanced CKD.
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Gong Z, Zhang F. Correspondence on 'Concomitant use of oral glucocorticoids and proton pump inhibitors and risk of osteoporotic fractures among patients with rheumatoid arthritis: a population-based cohort study'. Ann Rheum Dis 2021; 82:e142. [PMID: 34039620 DOI: 10.1136/annrheumdis-2021-220494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/07/2021] [Accepted: 04/07/2021] [Indexed: 11/04/2022]
Affiliation(s)
- Zhen Gong
- Department of Rheumatology, Yiyang Central Hospital, Yiyang, China
| | - Fangjie Zhang
- Department of Emergency Medicine, Xiangya Hospital Central South University, Changsha, China
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Bertoldo E, Adami G, Rossini M, Giollo A, Orsolini G, Viapiana O, Gatti D, Fassio A. The Emerging Roles of Endocrine Hormones in Different Arthritic Disorders. Front Endocrinol (Lausanne) 2021; 12:620920. [PMID: 34093428 PMCID: PMC8177688 DOI: 10.3389/fendo.2021.620920] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 04/20/2021] [Indexed: 12/17/2022] Open
Abstract
The relationship between endocrine hormones and the spectrum of rheumatic conditions has long been discussed in the literature, focusing primarily on sexual hormones, such as estrogens, androgens, prolactin (PRL). Estrogens are indeed involved in the pathogenesis of the main inflammatory arthritis thanks to their effects on the immune system, both stimulatory and inhibitory. The PRL system has been discovered in synovial tissue of rheumatoid arthritis (RA) and psoriatic arthritis (PsA), patients and has been propose as a new potential therapeutic target. Besides sexual hormones, in the last years scientific interest about the crosstalk of immune system with other class of hormones has grown. Hormones acting on the bone tissue (i.e. parathyroid hormone, vitamin D) and modulators of the Wnt pathway (i.e. Dickkopf-1) have been demonstrated to play active role in inflammatory arthritis course, defining a new field of research named osteoimmunology. PTH, which is one of the main determinants of Dkkopf-1, plays a crucial role in bone erosions in RA and a correlation between PTH, Trabecular Bone Score (TBS) and disease activity has been found in ankylosing spondylitis (AS). In PSA is under studying the interaction among IL-17 and bone metabolism. The purpose of this review is to discuss and summarize the recent data about the interaction between endocrine hormone and immune system in the main rheumatic disorders, covering in particular the role of bone-related hormones and cytokines. We will describe this relationship from a biochemical, diagnostic and therapeutic perspective, with a particular focus on RA, PsA and AS.
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Affiliation(s)
- Eugenia Bertoldo
- Rheumatology Unit, Department of Medicine, University of Verona, Verona, Italy
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Bindra J, Chopra I, Niewoehner J, Panaccio M, Wan GJ. Cost-Effectiveness of Repository Corticotropin Injection versus Standard of Care for the Treatment of Active Rheumatoid Arthritis. CLINICOECONOMICS AND OUTCOMES RESEARCH 2021; 13:349-358. [PMID: 33986603 PMCID: PMC8110275 DOI: 10.2147/ceor.s304600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 04/14/2021] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Patients with active rheumatoid arthritis (RA) often have inadequately controlled symptoms and are unable to achieve remission or low disease activity despite aggressive treatment. This results in irreversible joint damage, adversely affecting patients' physical and social functioning. The objective was to estimate the cost-effectiveness of repository corticotropin injection (RCI) versus standard of care (SoC) in patients with active RA from the United States (US) payer and societal perspectives over two to three years. METHODS An individual-level microsimulation was developed to generate individual trajectories for patients with RA, using data from a published Phase 4 trial of RCI. These trajectories report a patient's disease pathway and associated cost and quality-of-life outcomes. The incremental cost-effectiveness ratio (ICER) of RCI versus SoC was assessed using the literature-derived direct medical and indirect costs, and quality-adjusted life-years (QALY) derived from a Phase 4 trial of RCI. The uncertainty in base case estimates of the parameters was evaluated in the sensitivity analysis. RESULTS Over two years, RCI has an incremental QALY gain of 1.591 and incremental cost of $183,965 and $117,443 from payer and societal perspective, respectively, resulting in an ICER of $115,629/QALY and $73,817/QALY compared to SoC. Over three years, RCI has an incremental QALY gain of 2.336 and incremental cost of $202,315 and $104,506 from payer and societal perspective, respectively, resulting in an ICER of $86,607/QALY and $44,737/QALY compared to SoC. Results from the probabilistic sensitivity analysis are consistent with those of the base case model. CONCLUSION RCI is a cost-effective strategy for patients with persistently active RA who are previously treated with disease-modifying anti-rheumatic drugs and corticosteroids compared to SoC over two to three years from the payer and societal perspectives at a US willingness-to-pay threshold of $150,000/QALY. Further, the economic benefit of RCI is realized with improvement in a patient's clinical and health outcomes.
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Affiliation(s)
- Jas Bindra
- Falcon Research Group, North Potomac, MD, USA
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Jin S, Li M, Wang Q, Zeng X, Xia W, Yu W, Guan W, Hsieh E. Bone mineral density and microarchitecture among Chinese patients with rheumatoid arthritis: a cross-sectional study with HRpQCT. Arthritis Res Ther 2021; 23:127. [PMID: 33894786 PMCID: PMC8067377 DOI: 10.1186/s13075-021-02503-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 04/03/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Patients with rheumatoid arthritis (RA) are at increased risk of fractures. Although their decline in bone mineral density (BMD) is well-established, data regarding the alterations in bone microarchitecture are limited. In this study, we aimed to evaluate bone microarchitecture, geometry, and volumetric BMD among patients with RA in mainland China using high-resolution peripheral quantitative computed tomography (HRpQCT). METHODS In this cross-sectional study, patients with RA were recruited from the Peking Union Medical College Hospital site of the Chinese Registry of rhEumatoiD arthrITis (CREDIT). Each participant underwent HRpQCT scanning (Scanco XtremeCT II), thoracolumbar X-ray and dual-energy X-ray absorptiometry. The primary outcomes were HRpQCT-related measures at distal radius and tibia. Data regarding demographic features, RA-related characteristics, and history of fragility fractures were collected. Correlation between HRpQCT parameters and potentially related factors were analyzed using linear regression analysis. A group of age- and sex-matched healthy controls was included for comparison. RESULTS A total of 81 patients with RA [69 women, aged 57.9 ± 8.7 years, disease duration 5.7 (IQR 1.4-11.2) years] and 81 matched healthy controls were included. Compared with controls, patients with RA had significantly larger bone area and lower total and trabecular vBMD at both the distal radius and tibia. Lower cortical bone thickness was also shown at the distal tibia. Among patients with RA, advanced age, low BMI, female sex, disease duration, and activity were associated with decreased vBMD and impaired bone microstructure. Female reproductive factors including menopause, late menarche, breast feeding, and early childbirth also showed negative correlation with these parameters. Compared to patients with RA without fractures, patients with fragility fractures (n = 11) showed lower trabecular and cortical vBMD, thinner cortical bone, impaired trabecular microstructure, and a trend of declined bone strength. Current glucocorticoid intake was related to decreased vBMD, trabecular number, increased trabecular separation, and inhomogeneity. CONCLUSIONS In this study, we observed alterations in bone mineral density, geometry, and microarchitecture among patients with RA compared to healthy individuals, which may impair bone strength and lead to increased risk of fractures. Both traditional risk factors for osteoporosis and RA-associated factors need to be considered in the assessment of the bone quality.
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Affiliation(s)
- Shangyi Jin
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences & Peking Union Medical College; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology; State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, 100730, China
| | - Mengtao Li
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences & Peking Union Medical College; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology; State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, 100730, China.
| | - Qian Wang
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences & Peking Union Medical College; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology; State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, 100730, China
| | - Xiaofeng Zeng
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences & Peking Union Medical College; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology; State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, 100730, China
| | - Weibo Xia
- Department of Endocrinology, Key Laboratory of Endocrinology, National Commission of Health, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - Wei Yu
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wenmin Guan
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Evelyn Hsieh
- Section of Rheumatology, Allergy and Immunology, Yale School of Medicine, 300 Cedar Street, TAC S-525, P.O. Box 208031, New Haven, CT, 06520-8031, USA.
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Pierini FS, Brom M, Scolnik M, Scaglioni V, Rosa JE, Soriano ER. Osteoporotic fractures in rheumatoid arthritis patients in Argentina: a matched retrospective cohort study. Adv Rheumatol 2021; 61:21. [PMID: 33827708 DOI: 10.1186/s42358-021-00179-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 03/25/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To compare the incidence of osteoporotic fractures in patients with rheumatoid arthritis (RA) with matched controls from a university hospital. METHODS Consecutive RA patients (n = 100) were matched (age and sex) with controls (1:2). The follow-up period began at the index date, defined as the date of diagnosis for RA patients and the date of the first medical claim at the Health Management Organization (HMO) for non-RA patients. Fracture incidence rates per 1000 persons-years (PY) for distinct types of fractures were calculated. Multivariate cox regression analysis was performed to identify factors associated with fractures. RESULTS One hundred RA patients were followed for a total of 975.1 patients-years and 200 controls for 1485.7 patients-years. No difference was found in the overall fracture incidence rate per 1000 PY between RA and controls (19.5, 95% CI 12.7-28.6 vs 12.1, 95% CI 7.7-18.7, p = 0.07). In the Cox regression analysis, only age (HR 1.06, 95% CI 1.02-1.11, p = 0.006) and history of a prior fracture (HR 9.85, 95% CI 2.97-32.64, p < 0.001) were associated with fractures after the index date. The stratified analysis of the fractures by location showed that only the vertebral fractures were more frequent in RA patients compared with controls (12.9 per 1000 PY, 95% CI 8.9-25.8, vs. 3.4, 95% CI 1.4-8.1, respectively, p = 0.01). CONCLUSION Patients with RA didn't show an overall increased risk of osteoporotic fractures compared with matched controls, but vertebral fractures were more frequently observed in patients with RA.
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Affiliation(s)
- Florencia S Pierini
- Rheumatology Unit, Internal Medicine Department, Hospital Italiano de Buenos Aires, Perón 4190, 1181, Buenos Aires, Argentina.
| | - Martin Brom
- Rheumatology Unit, Internal Medicine Department, Hospital Italiano de Buenos Aires, Perón 4190, 1181, Buenos Aires, Argentina
| | - Marina Scolnik
- Rheumatology Unit, Internal Medicine Department, Hospital Italiano de Buenos Aires, Perón 4190, 1181, Buenos Aires, Argentina
| | - Valeria Scaglioni
- Rheumatology Unit, Internal Medicine Department, Hospital Italiano de Buenos Aires, Perón 4190, 1181, Buenos Aires, Argentina
| | - Javier E Rosa
- Rheumatology Unit, Internal Medicine Department, Hospital Italiano de Buenos Aires, Perón 4190, 1181, Buenos Aires, Argentina
| | - Enrique R Soriano
- Rheumatology Unit, Internal Medicine Department, Hospital Italiano de Buenos Aires, Perón 4190, 1181, Buenos Aires, Argentina
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Brance ML, Pons-Estel BA, Quagliato NJ, Jorfen M, Berbotto G, Cortese N, Raggio JC, Palatnik M, Chavero I, Soldano J, Dieguez C, Sánchez A, Del Rio L, Di Gregorio S, Brun LR. Trabecular and cortical bone involvement in rheumatoid arthritis by DXA and DXA-based 3D modelling. Osteoporos Int 2021; 32:705-714. [PMID: 32974730 DOI: 10.1007/s00198-020-05641-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 09/15/2020] [Indexed: 10/23/2022]
Abstract
UNLABELLED Rheumatoid arthritis (RA) patients had a higher risk of developing low bone mineral density (BMD) or osteoporosis. RA patients on classic disease-modifying antirheumatic drug (c-DMARD) therapy showed significantly lower BMD than controls, while no significant differences in most parameters were found between RA patients receiving biological disease-modifying antirheumatic drugs (b-DMARDs) and controls. The 3D analysis allowed us to find changes in the trabecular and cortical compartments. INTRODUCTION To evaluate cortical and trabecular bone involvement of the hip in RA patients by dual-energy X-ray absorptiometry (DXA) and 3D analysis. The secondary end-point was to evaluate bone involvement in patients treated with classic (c-DMARD) or biological (b-DMARD) disease-modifying antirheumatic drug therapies and the effect of the duration of the disease and corticosteroid therapy on 3D parameters. METHODS A cross-sectional study of 105 RA patients and 100 subjects as a control group (CG) matched by age, sex, and BMI was carried out. BMD was measured by DXA of the bilateral femoral neck (FN) and total hip (TH). The 3D analyses including trabecular and cortical BMD were performed on hip scans with the 3D-Shaper software. RESULTS FN and TH BMD and trabecular and cortical vBMD were significantly lower in RA patients. The c-DMARD (n = 75) group showed significantly lower trabecular and cortical vBMD than the CG. Despite the lower values, the b-DMARD group (n = 30) showed no significant differences in most parameters compared with the CG. The trabecular and cortical 3D parameters were significantly lower in the group with an RA disease duration of 1 to 5 years than in the CG, and the trabecular vBMD was significantly lower in the group with a duration of corticosteroid therapy of 1 to 5 years than in the CG, while no significant differences were found by standard DXA in the same period. CONCLUSIONS RA patients had a higher risk of developing low BMD or osteoporosis than controls. RA patients receiving c-DMARD therapy showed significantly lower BMD than controls, while no significant differences in most parameters were found between RA patients receiving b-DMARDs and controls. 3D-DXA allowed us to find changes in trabecular and cortical bone compartments in RA patients.
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Affiliation(s)
- M L Brance
- Reumatología y Enfermedades Óseas, Rosario, Argentina
- Bone Biology Laboratory, School of Medicine, Rosario National University, Rosario, Argentina
- National Council of Scientific and Technical Research (CONICET), Buenos Aires, Argentina
| | - B A Pons-Estel
- Centro Regional de Enfermedades Autoinmunes y Reumáticas (GO-CREAR), Rosario, Argentina
| | | | - M Jorfen
- Reumatología y Enfermedades Óseas, Rosario, Argentina
| | - G Berbotto
- Reumatología y Enfermedades Óseas, Rosario, Argentina
| | - N Cortese
- School of Medicine, Rosario National University, Rosario, Argentina
| | - J C Raggio
- Reumatología y Enfermedades Óseas, Rosario, Argentina
| | - M Palatnik
- Centro de Reumatología, Rosario, Argentina
| | - I Chavero
- Reumatología y Enfermedades Óseas, Rosario, Argentina
| | - J Soldano
- School of Medicine, Rosario National University, Rosario, Argentina
| | - C Dieguez
- Reumatología y Enfermedades Óseas, Rosario, Argentina
| | - A Sánchez
- Centro de Endocrinología, Rosario, Argentina
| | | | | | - L R Brun
- Bone Biology Laboratory, School of Medicine, Rosario National University, Rosario, Argentina.
- National Council of Scientific and Technical Research (CONICET), Buenos Aires, Argentina.
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Komatsu N, Win S, Yan M, Huynh NCN, Sawa S, Tsukasaki M, Terashima A, Pluemsakunthai W, Kollias G, Nakashima T, Takayanagi H. Plasma cells promote osteoclastogenesis and periarticular bone loss in autoimmune arthritis. J Clin Invest 2021; 131:143060. [PMID: 33720039 PMCID: PMC7954598 DOI: 10.1172/jci143060] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 01/27/2021] [Indexed: 12/29/2022] Open
Abstract
In rheumatoid arthritis (RA), osteoclastic bone resorption causes structural joint damage as well as periarticular and systemic bone loss. Periarticular bone loss is one of the earliest indices of RA, often preceding the onset of clinical symptoms via largely unknown mechanisms. Excessive osteoclastogenesis induced by receptor activator of NF-κB ligand (RANKL) expressed by synovial fibroblasts causes joint erosion, whereas the role of RANKL expressed by lymphocytes in various types of bone damage has yet to be elucidated. In the bone marrow of arthritic mice, we found an increase in the number of RANKL-expressing plasma cells, which displayed an ability to induce osteoclastogenesis in vitro. Genetic ablation of RANKL in B-lineage cells resulted in amelioration of periarticular bone loss, but not of articular erosion or systemic bone loss, in autoimmune arthritis. We also show conclusive evidence for the critical contribution of synovial fibroblast RANKL to joint erosion in collagen-induced arthritis on the arthritogenic DBA/1J background. This study highlights the importance of plasma-cell RANKL in periarticular bone loss in arthritis and provides mechanistic insight into the early manifestation of bone lesion induced by autoimmunity.
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Affiliation(s)
- Noriko Komatsu
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Stephanie Win
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Minglu Yan
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Nam Cong-Nhat Huynh
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shinichiro Sawa
- Division of Mucosal Immunology, Research Center for Systems Immunology, Kyushu University, Fukuoka, Japan
| | - Masayuki Tsukasaki
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Asuka Terashima
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Warunee Pluemsakunthai
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - George Kollias
- Biomedical Sciences Research Centre “Alexander Fleming,” Vari, Greece
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Tomoki Nakashima
- Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroshi Takayanagi
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
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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: 30] [Impact Index Per Article: 10.0] [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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Li CH, Ma ZZ, Jian LL, Wang XY, Sun L, Liu XY, Yao ZQ, Zhao JX. Iguratimod inhibits osteoclastogenesis by modulating the RANKL and TNF-α signaling pathways. Int Immunopharmacol 2021; 90:107219. [PMID: 33307512 DOI: 10.1016/j.intimp.2020.107219] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/09/2020] [Accepted: 11/16/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND Iguratimod, a small molecular drug, has been proven to have effective bone protection for treatment of patients with bone loss-related diseases, such as rheumatoid arthritis (RA). However, the exact bone protective mechanism of iguratimod remains to be determined. The purpose of this study was to better explore the underlying mechanism of bone protection of iguratimod. METHODS Bone marrow monocytes from C57/BL6 mice were stimulated with either RANKL or TNF-α plus M-CSF. The effects of iguratimod on morphology and function of osteoclasts were confirmed by TRAP staining and bone resorption assay, respectively. The expression of osteoclast related genes was detected by RT-PCR and the activation of signal pathway was detected by Western blotting. We used rodent models of osteoporosis (ovariectomy) and of arthritis (modified TNF-α-induced osteoclastogenesis) to evaluate the osteoprotective effect of iguratimod in vivo. RESULTS Iguratimod potently inhibited osteoclast formation in a dose-dependent manner at the early stage of RANKL-induced osteoclastogenesis, whereas iguratimod had no effect on M-CSF-induced proliferation and RANK expression in bone marrow monocytes. Bone resorption was significantly reduced by both early and late addition of iguratimod. Administration of iguratimod prevented bone loss in ovariectomized mice. The blockage of osteoclastogenesis elicited by iguratimod results from abrogation of the p38、ERK and NF-κB pathways induced by RANKL. Importantly, Iguratimod also dampened TNF-α-induced osteoclastogenesis in vitro and attenuated osteoclasts generation in vivo through disrupting NF-κB late nuclear translocation without interfering with IκBα degradation. CONCLUSIONS Iguratimod not only suppresses osteoclastogenesis by interfering with RANKL and TNF-α signals, but also inhibits the bone resorption of mature osteoclasts. These results provided promising evidence for the therapeutic application of iguratimod as a unique treatment option against RA and especially in prevention of bone loss.
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MESH Headings
- Animals
- Antirheumatic Agents/pharmacology
- Arthritis, Experimental/drug therapy
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/pathology
- Arthritis, Rheumatoid/drug therapy
- Arthritis, Rheumatoid/metabolism
- Arthritis, Rheumatoid/pathology
- Cell Differentiation/drug effects
- Cells, Cultured
- Chromones/pharmacology
- Extracellular Signal-Regulated MAP Kinases/metabolism
- Female
- Humans
- Mice, Inbred C57BL
- NF-kappa B/metabolism
- Osteoclasts/drug effects
- Osteoclasts/metabolism
- Osteoclasts/pathology
- Osteogenesis/drug effects
- Osteoporosis, Postmenopausal/metabolism
- Osteoporosis, Postmenopausal/pathology
- Osteoporosis, Postmenopausal/prevention & control
- Ovariectomy
- RANK Ligand/pharmacology
- Rats, Wistar
- Signal Transduction
- Sulfonamides/pharmacology
- Tumor Necrosis Factor-alpha/pharmacology
- p38 Mitogen-Activated Protein Kinases/metabolism
- Mice
- Rats
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Affiliation(s)
- Chang-Hong Li
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, PR China; Osteoporosis and Bone Metabolic Diseases Center, Peking University Third Hospital, Beijing 100191, PR China
| | - Zhen-Zhen Ma
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, PR China
| | - Lei-Lei Jian
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, PR China
| | - Xin-Yu Wang
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, PR China
| | - Lin Sun
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, PR China
| | - Xiang-Yuan Liu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, PR China
| | - Zhong-Qiang Yao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, PR China.
| | - Jin-Xia Zhao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, PR China; Osteoporosis and Bone Metabolic Diseases Center, Peking University Third Hospital, Beijing 100191, PR China.
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70
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Hsu CY, Chen JF, Su YJ, Chen YC, Lai HM, Yu SF, He HR, Cheng TT. Time-averaged disease activity of rheumatoid arthritis associated with long-term bone mineral density changes. Ther Adv Chronic Dis 2020; 11:2040622320981517. [PMID: 33489063 PMCID: PMC7768880 DOI: 10.1177/2040622320981517] [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: 05/24/2020] [Accepted: 11/26/2020] [Indexed: 12/11/2022] Open
Abstract
Background: Rheumatoid arthritis (RA) is associated with poor bone mineral density (BMD). We designed the current study owing to the lack of long-term prospective studies regarding whether a high disease activity leads to increased bone loss. Methods: We have continually enrolled patients with RA. According to the average disease activity score in 28 joints based on the erythrocyte sedimentation rate (DAS28-ESR) during follow-up, the patients were classified into remission, low disease activity, and moderate or high disease activity groups. Patients were examined with dual-energy X-ray absorptiometry at baseline and after 3 years of follow-up. BMD changes were compared among the groups. Results: We have studied 477 patients. Overall BMD was significantly reduced from baseline to the 3-year follow-up (p < 0.05). After stratifying according to the time-averaged DAS28-ESR levels and use of anti-osteoporosis treatment (AOT), the BMD values of the femur and spine significantly increased in patients in the remission group with AOT. The BMD changes of different DAS28-ESR patients were further compared using the generalized estimation equation model. For the patients on AOT, the negative change in femoral BMD values of the moderate or high activity group was significant when compared with the remission group with positive BMD changes (regression coefficient, –0.038; 95% confidence interval, –0.055 to –0.021). Conclusion: For RA patients, if remission is achieved, AOT can better improve BMD, especially in the femur. In addition, moderate or high disease activity will lead to significant bone loss; therefore, disease activity must be actively controlled.
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Affiliation(s)
- Chung-Yuan Hsu
- Division of Rheumatology, Allergy and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung
| | - Jia-Feng Chen
- Division of Rheumatology, Allergy and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung
| | - Yu-Jih Su
- Division of Rheumatology, Allergy and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung
| | - Ying-Chou Chen
- Division of Rheumatology, Allergy and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung
| | - Han-Ming Lai
- Division of Rheumatology, Allergy and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung
| | - Shan-Fu Yu
- Division of Rheumatology, Allergy and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung
| | - Hsiao-Ru He
- Division of Rheumatology, Allergy and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung
| | - Tien-Tsai Cheng
- Division of Rheumatology, Allergy and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 123 Ta-Pei Road, Kaohsiung 833
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Gómez-Vaquero C, Martín I, Zacarías A, Alía P, Loza E, Carmona L, Narváez J. Relation of the Serum Levels of DKK-1 and Osteoprotegerin with Bone Mass in Tightly Controlled Rheumatoid Arthritis. Curr Rheumatol Rev 2020; 17:101-108. [PMID: 33349216 DOI: 10.2174/1573397116666201221112509] [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: 03/09/2020] [Revised: 05/16/2020] [Accepted: 07/23/2020] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To analyze the association between serum levels of osteoprotegerin (OPG) and Dickkopf-related protein 1 (DKK-1) and the annual percent change (Δ%) in bone mineral density (BMD) in patients with tightly controlled rheumatoid arthritis (RA). METHODS Observational mixed-study. RA patients followed-up with a tight-control strategy were included. Bone densitometries were performed at baseline (T0) and follow-up (T1) and serum levels of OPG and DKK-1 were measured by ELISA also in T0 and T1; additional clinical variables included disease activity measures, and treatment for RA and osteoporosis. Descriptive bivariate and multivariate analyses, stratified by gender, were performed. RESULTS We included 97 RA patients (70% female, with a mean age of 53 years, and 76% with low activity by DAS28); 95% were treated with DMARDs and 37% with anti-osteoporotic drugs. Mean time between T0 and T1 was 2.7 years. Most patients had their BMD improved. The mean Δ%BMD was +0.42% for lumbar spine, +0.15% for femoral neck and +0.91% for total femur. In men, baseline OPG was significantly associated with higher BMD loss (β coefficient -0.64) at the femoral neck. In women, DKK-1 was associated with higher BMD loss at the femoral neck (β coefficient -0.09), and total femur (β coefficient -0.11); however, DKK-1 was associated with lower BMD loss at the lumbar spine (β coefficient 0.06). CONCLUSION In tightly controlled RA patients, we have found no evidence of bone loss. The role of DKK1 and OPG seems small and might be related to sex and location.
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Affiliation(s)
- Carmen Gómez-Vaquero
- Rheumatology and Clinical Laboratory Services, Hospital Universitari de Bellvitge-IDIBELL, L'Hospitalet, Barcelona, Spain
| | - Irene Martín
- Rheumatology and Clinical Laboratory Services, Hospital Universitari de Bellvitge-IDIBELL, L'Hospitalet, Barcelona, Spain
| | - Andrea Zacarías
- Rheumatology and Clinical Laboratory Services, Hospital Universitari de Bellvitge-IDIBELL, L'Hospitalet, Barcelona, Spain
| | - Pedro Alía
- Rheumatology and Clinical Laboratory Services, Hospital Universitari de Bellvitge-IDIBELL, L'Hospitalet, Barcelona, Spain
| | | | | | - Javier Narváez
- Rheumatology and Clinical Laboratory Services, Hospital Universitari de Bellvitge-IDIBELL, L'Hospitalet, Barcelona, Spain
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72
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Nagao N, Wakabayashi H, Miyamura G, Kato S, Naito Y, Sudo A. CTLA-4Ig Improves Hyperalgesia in a Mouse Model of Osteoporosis. Int J Mol Sci 2020; 21:ijms21249479. [PMID: 33322156 PMCID: PMC7763121 DOI: 10.3390/ijms21249479] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 12/29/2022] Open
Abstract
This study aimed to evaluate skeletal pain associated with osteoporosis and to examine the inhibitory effects of cytotoxic T lymphocyte-associated antigen-4Ig (CTLA-4Ig) administration in ovariectomized (OVX) mice. Eight-week-old female ddY mice were assigned to three groups: sham-operated mice (SHAM) treated with vehicle, OVX mice treated with vehicle (OVX), and OVX mice treated with CTLA-4Ig (CTLA-4Ig). Vehicle or CTLA-4Ig was injected intraperitoneally, starting immediately after surgery. After 4 weeks of treatment, mechanical sensitivity was examined, and the bilateral hind limbs were removed and evaluated by micro-computed tomography, immunohistochemical analyses, and messenger RNA expression analysis. Ovariectomy induced bone loss and mechanical hyperalgesia in the hindlimbs. CTLA-4Ig treatment prevented bone loss in the hindlimbs compared to vehicle administration in the OVX group. Moreover, mechanical hyperalgesia was significantly decreased in the CTLA-4Ig treatment group in comparison to the OVX group. The expression levels of tumor necrosis factor-α (TNF-α) and sclerostin (SOST), as well as the number of osteoclasts, were increased, and the expression level of Wnt-10b was decreased in the OVX group compared with the SHAM group, whereas these parameters were improved in the CTLA-4Ig group compared with the OVX group. The novelty of this research is that CTLA-4Ig administration prevented bone loss and mechanical hyperalgesia induced by ovariectomy in the hindlimbs.
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73
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Elshahaly MH, Gad KA. The Utility of Radiographic Focal Erosions of Hands or Feet in Predicting DXA-defined Osteoporosis of the Hip in Patients with Rheumatoid Arthritis. Curr Rheumatol Rev 2020; 16:74-78. [PMID: 31333130 DOI: 10.2174/1573397115666190716120127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/17/2019] [Accepted: 06/25/2019] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Osteoporosis is a common comorbidity in Rheumatoid Arthritis (RA) patients and can result in estimated double risk of pathological fractures. Bone Mineral Density (BMD) is known to decrease with RA because of mechanisms incorporating traditional as well as disease-specific causes. With the advent of newer disease-modifying antirheumatic agents and bone protection medications, it is becoming important to identify those individuals who are at increased risk of developing osteoporosis among RA patients. AIM In the current study, we aim to evaluate a multitude of factors including focal erosions on radiographs of hands or feet that can predict osteoporosis in RA patients. METHODS After obtaining IRB approval, 26 patients (20 females & 6 males) with a median age of 62 years (95% CI: 57.4 - 66.0) were retrospectively identified from a Rheumatology clinic database with an established diagnosis of RA but not taking osteoporosis medications. A detailed assessment was accomplished including evaluating a number of disease-specific variables, hands/feet radiographs and Dual-energy X-ray Absorptiometry (DXA). RESULTS The total hip BMD was lower in RA patients with radiographic erosions (0.862 g/cm2 ± 0.17) compared to those patients without erosions (1.011 g/cm2 ± 0.13). On univariate logistic regression, the presence of radiographic erosions predicted osteoporosis of the hip (p = 0.04). ROC curve demonstrated satisfactory performance of erosions in predicting WHO-defined osteoporosis or osteopenia at the hip (AUC = 0.732). CONCLUSION RA patients who show radiographic erosions are more likely to develop hip osteoporosis that may require further intervention.
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Affiliation(s)
- Mohsen H Elshahaly
- Department of Rheumatology, Physical Medicine and Rehabilitation, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Khaled A Gad
- Department of Radiology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
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74
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Wagner JM, Schmidt SV, Dadras M, Wallner C, Huber J, Sogorski A, Sacher M, Reinkemeier F, Dittfeld S, Becerikli M, Becker K, Rauch N, Lehnhardt M, Behr B. TNF-α modulation via Etanercept restores bone regeneration of atrophic non-unions. Bone 2020; 141:115569. [PMID: 32745691 DOI: 10.1016/j.bone.2020.115569] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/26/2020] [Accepted: 07/27/2020] [Indexed: 10/23/2022]
Abstract
Treatment of atrophic non-unions, especially in long bones is a challenging problem in orthopedic surgery due to the high revision and failure rate after surgical intervention. Subsequently, there is a certain need for a supportive treatment option besides surgical treatment. In our previous study we gained first insights into the dynamic processes of atrophic non-union formation and observed a prolonged inflammatory reaction with upregulated TNF-α levels and bone resorption. In this study we aimed to improve bone regeneration of atrophic non-unions via TNF-α modulation in a previously established murine femoral segmental defect model. Animals that developed atrophic non-unions of the femur after 5 and 10 weeks were treated systemically for 10 and 5 weeks with Etanercept, a soluble TNF-α antibody. μCT scans and histology revealed bony bridging of the fracture gap in the treatment group, while bone formation in control animals without treatment was not evident. Moreover, osteoclasts were markedly decreased via modulation of the RANKL/OPG axis due to Etanercept treatment. Additionally, immunomodulatory effects via Etanercept could be observed as further inflammatory agents, such as TGF-β, IL6, MMP9 and 13 were decreased in both treatment groups. This study is the first showing beneficial effects of Etanercept treatment on bone regeneration of atrophic non-union formation. Moreover, the results of this study provide a new and promising therapeutic option which might reduce the failure rate of revision surgeries of atrophic non-unions.
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Affiliation(s)
| | | | - Mehran Dadras
- University Hospital BG Bergmannsheil Bochum, Germany
| | | | - Julika Huber
- University Hospital BG Bergmannsheil Bochum, Germany
| | | | - Maxi Sacher
- University Hospital BG Bergmannsheil Bochum, Germany
| | | | | | | | | | | | | | - Björn Behr
- University Hospital BG Bergmannsheil Bochum, Germany.
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Rotta D, Fassio A, Rossini M, Giollo A, Viapiana O, Orsolini G, Bertoldo E, Gatti D, Adami G. Osteoporosis in Inflammatory Arthritides: New Perspective on Pathogenesis and Treatment. Front Med (Lausanne) 2020; 7:613720. [PMID: 33335907 PMCID: PMC7736072 DOI: 10.3389/fmed.2020.613720] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 11/06/2020] [Indexed: 12/17/2022] Open
Abstract
Osteoporosis is a skeletal disorder characterized by impaired bone strength and increased risk of fragility fracture and is among the most relevant comorbidities of rheumatic diseases. The purpose of the present review is to discuss the pathogenesis of local and systemic bone involvement in inflammatory arthritides, especially Rheumatoid Arthritis, Psoriatic Arthritis, and Spondyloarthritides, as well as the effect of anti-rheumatic treatments and anti-osteoporotic medication on bone health and fracture incidence, including recent data on novel therapeutic perspective.
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Affiliation(s)
- Denise Rotta
- Rheumatology Unit, University of Verona, Verona, Italy
| | - Angelo Fassio
- Rheumatology Unit, University of Verona, Verona, Italy
| | | | | | | | | | | | - Davide Gatti
- Rheumatology Unit, University of Verona, Verona, Italy
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Lipoxin A4-Mediated p38 MAPK Signaling Pathway Protects Mice Against Collagen-Induced Arthritis. Biochem Genet 2020; 59:346-365. [PMID: 33221976 DOI: 10.1007/s10528-020-10016-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 11/12/2020] [Indexed: 01/06/2023]
Abstract
The aim of the article was to study the mechanism of Lipoxin A4 (LXA4)-mediated p38 MAPK pathway protecting mice against collagen-induced arthritis (CIA). The impact of LXA4 (0, 5, 10, 15 nM) on synoviocytes proliferation of CIA mice was detected using 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. CIA mice were treated with LXA4, SB203580 (a p38 inhibitor), and/or anisomycin (a p38 agonist), and the arthritis severity score in each mouse was determined. The gene or protein expressions were detected with Western Blotting, ELISA, or qRT-PCR. LXA4 inhibited the synoviocytes proliferation of CIA mice with decreased levels of TNF-α, IL-6, IL-1β, and IFN-γ and reduced p-p38/total p38 expression in synoviocytes in a dose-dependent manner. LXA4 levels were decreased in synovial tissues and plasma of CIA mice, but p-p38/total p38 expression was increased in synovial tissues. LXA4 could downregulate p-p38/total p38 expression in synovial tissues of CIA mice. Both LXA4 and SB203580 reduced arthritis severity score of CIA mice with the reduction of synovial tissue hyperplasia and inflammatory cell infiltration. CIA mice treated with LXA4 and SB203580 had lower levels of TNF-α, IL-6, IL-1β, and IFN-γ, accompanying decreased MDA as well as increased SOD, CAT,and GPx. However, anisomycin could reverse the protect effects of LXA4 on CIA mice regarding the abovementioned inflammatory factors and oxidative stress indexes. LXA4 protected mice against collagen-induced arthritis via inhibiting p38 MAPK signaling pathway, which may be a potential new therapeutic target for rheumatoid arthritis.
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77
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Romano C, Esposito S, Ferrara R, Cuomo G. Tailoring biologic therapy for real-world rheumatoid arthritis patients. Expert Opin Biol Ther 2020; 21:661-674. [PMID: 33147106 DOI: 10.1080/14712598.2021.1847268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Introduction: The cornerstone of rheumatoid arthritis (RA) therapy relies on the treat-to-target strategy, which aims at dampening inflammation as soon as possible in order to achieve persistent low disease activity or, ideally, remission, according to validated disease activity measures. Traditional disease-modifying antirheumatic drugs (DMARDs) may be chosen in monotherapy or in combination as first-line therapy; in case of an unsatisfactory response after a 3-6-month trial, biologic therapy may be commenced.Areas covered: Real-life RA patients may present with concomitant comorbidities/complications or be in peculiar physiological states which raise more than one question as to which biotherapy may be more well suited considering the whole clinical picture. Therefore, a thorough literature search was performed to identify the most appropriate biologic therapy in each setting considered in this review.Expert opinion: Here we provide suggestions for the use of biologic drugs having a predictable better outcome in specific real-world conditions, so as to ideally profile the patient to the best of the current knowledge.
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Affiliation(s)
- Ciro Romano
- Department of Medicine, Clinical Immunology Outpatient Clinic, "Luigi Vanvitelli" University of Campania, Naples, Italy
| | - Sergio Esposito
- Department of Medicine, Clinical Immunology Outpatient Clinic, "Luigi Vanvitelli" University of Campania, Naples, Italy
| | - Roberta Ferrara
- Department of Medicine, Clinical Immunology Outpatient Clinic, "Luigi Vanvitelli" University of Campania, Naples, Italy
| | - Giovanna Cuomo
- Department of Medicine, Clinical Immunology Outpatient Clinic, "Luigi Vanvitelli" University of Campania, Naples, Italy
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78
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Shi Y, Shu H, Wang X, Zhao H, Lu C, Lu A, He X. Potential Advantages of Bioactive Compounds Extracted From Traditional Chinese Medicine to Inhibit Bone Destructions in Rheumatoid Arthritis. Front Pharmacol 2020; 11:561962. [PMID: 33117162 PMCID: PMC7577042 DOI: 10.3389/fphar.2020.561962] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 09/16/2020] [Indexed: 12/14/2022] Open
Abstract
Bone destruction is an important pathological feature of rheumatoid arthritis (RA), which finally leads to the serious decline of life quality in RA patients. Bone metabolism imbalance is the principal factor of bone destruction in RA, which is manifested by excessive osteoclast-mediated bone resorption and inadequate osteoblast-mediated bone formation. Although current drugs alleviate the process of bone destruction to a certain extent, there are still many deficiencies. Recent studies have shown that traditional Chinese medicine (TCM) could effectively suppress bone destruction of RA. Some bioactive compounds from TCM have shown good effect on inhibiting osteoclast differentiation and promoting osteoblast proliferation. This article reviews the research progress of bioactive compounds exacted from TCM in inhibiting bone destruction of RA, so as to provide references for further clinical and scientific research.
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Affiliation(s)
- Yingjie Shi
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Haiyang Shu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China.,The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xinyu Wang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China.,College of Medicine, Southwest Jiaotong University, Chengdu, China
| | - Hanxiao Zhao
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China.,The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Cheng Lu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Aiping Lu
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,School of Chinese Medicine, Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, Hong Kong Baptist University, Hong Kong, Hong Kong
| | - Xiaojuan He
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
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79
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Koo BS, Oh JS, park SY, Shin JH, Ahn GY, Lee S, Joo KB, Kim TH. Response to ‘Correspondence on “Tumour necrosis factor inhibitors slow radiographic progression in patients with ankylosing spondylitis: 18-year real-world evidence” by Zhang et al. Ann Rheum Dis 2020; 81:e253. [DOI: 10.1136/annrheumdis-2020-218944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 09/10/2020] [Indexed: 11/03/2022]
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80
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Validation of Fully Automatic Quantitative Software for Finger Joint Space Narrowing Progression for Rheumatoid Arthritis Patients. J Digit Imaging 2020; 33:1387-1392. [PMID: 32989619 DOI: 10.1007/s10278-020-00390-6] [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: 03/24/2020] [Revised: 08/08/2020] [Accepted: 09/14/2020] [Indexed: 10/23/2022] Open
Abstract
In rheumatoid arthritis (RA), the radiographic progression of joint space narrowing (JSN) is evaluated using visual assessments. However, those methods are complicated and time-consuming. We developed an automatic system that can detect joint locations and compute the joint space difference index (JSDI), which was defined as the chronological change in JSN between two radiographs. The purpose of this study was to establish the validity of the software that automatically evaluates the temporal change of JSN. This study consisted of 39 patients with RA. All patients were treated with tocilizumab and underwent hand radiography (left and right hand separately) at 0, 6, and 12 months. The JSN was evaluated using mTSS (modified Total Sharp Score) by one musculoskeletal radiologist as well as our automatic system. Software measurement showed that JSDI between 0 and 12 months was significantly higher than that between 0 and 6 months (p < 0.01). While, there was no significant difference in mTSS between 0, 6, and 12 months. The group with higher disease activity at 0 months had significantly higher JSDI between 0 and 6 months than that with lower disease activity (p = 0.02). The automatic software can evaluate JSN progression of RA patients in the finger joint on X-ray.
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81
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Zhou Y, Lower EE. Balancing Altered Calcium Metabolism with Bone Health in Sarcoidosis. Semin Respir Crit Care Med 2020; 41:618-625. [PMID: 32777848 DOI: 10.1055/s-0040-1713009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Abnormal calcium metabolism in sarcoidosis patients can lead to hypercalcemia, hypercalciuria, and kidney stones. Hypercalcemia in sarcoidosis is usually due to increased activity of 1α-hydroxylase in macrophages of pulmonary granulomata, resulting in low levels of 25-hydroxyvitamin D and high levels of calcitriol. Vitamin D supplementation may be dangerous for some sarcoidosis patients and is recommended only for those with decreased 25-hydroxyvitamin D and reduced or normal calcitriol level. Diagnosis, treatment of osteoporosis, and maintenance of bone health are complex issues for sarcoidosis patients. An approach to diagnosis and treatment of bone fragility is presented.
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Affiliation(s)
- Ying Zhou
- Department of Respiratory Medicine, Clinical Research Center, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Elyse E Lower
- Department of Internal Medicine, University of Cincinnati Medical Center, Cincinnati, Ohio
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82
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Papadopoulou A, Cantele A, Koletsi D, Eliades T, Kletsas D. Short- and long-term treatment with TNF-α inhibits the induction of osteoblastic differentiation in cyclic tensile-stretched periodontal ligament fibroblasts. Eur J Orthod 2020; 42:396-406. [DOI: 10.1093/ejo/cjaa042] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Summary
Background
Cyclic tensile stretching (CTS) induces osteoblastic differentiation of periodontal ligament fibroblasts (PDLF). On the other hand, increased concentrations of tumour necrosis factor-α (TNF-α) are found in inflammatory conditions, leading to periodontal disease and tooth loss. Accordingly, our aim was to investigate the short- and long-term effect of TNF-α on the response of human PDLF to CTS and its implication on osteoblastic differentiation.
Methods
PDLF were either pre-incubated for 4 hours or were repeatedly exposed to TNF-α for up to 50 days and then subjected to CTS. Gene expression was determined by quantitative real-time polymerase chain reaction. Activation of mitogen-activated protein kinase (MAPK) was monitored by western analysis and cell proliferation by bromodeoxyuridine incorporation. Intracellular reactive oxygen species were determined by the 2´, 7´-dichlorofluorescein-diacetate assay and osteoblastic differentiation by Alizarin Red-S staining after an osteo-inductive period of 21 days.
Results
CTS of PDLF induced an immediate upregulation of the c-fos transcription factor and, further downstream the overexpression of alkaline phosphatase and osteopontin, two major osteoblast marker genes. A 4-hour pre-incubation with TNF-α repressed these effects. Similarly, long-term propagation of PDLF along with TNF-α diminished their osteoblastic differentiation capacity and suppressed cells’ CTS-elicited responses. The observed phenomena were not linked with TNF-α-induced premature senescence or oxidative stress. While CTS induced the activation of MAPKs, involved in mechanotransduction, TNF-α treatment provoked a small delay in the phosphorylation of extracellular signal-regulated kinase and c-Jun N-terminal kinase.
Conclusion
Increased concentrations of TNF-α, such as those recorded in many inflammatory diseases, suppress PDLF’s immediate responses to mechanical forces compromising their osteoblastic differentiation potential, possibly leading to tissue’s impaired homeostasis.
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Affiliation(s)
- Adamantia Papadopoulou
- Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, National Centre for Scientific Research ‘Demokritos’, Ag. Paraskevi, Athens, Greece
| | - Aurelie Cantele
- Clinic of Orthodontics and Paediatric Dentistry, University of Zurich, Switzerland
| | - Despina Koletsi
- Clinic of Orthodontics and Paediatric Dentistry, University of Zurich, Switzerland
| | - Theodore Eliades
- Clinic of Orthodontics and Paediatric Dentistry, University of Zurich, Switzerland
| | - Dimitris Kletsas
- Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, National Centre for Scientific Research ‘Demokritos’, Ag. Paraskevi, Athens, Greece
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83
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Vitamin C Deficiency and the Risk of Osteoporosis in Patients with an Inflammatory Bowel Disease. Nutrients 2020; 12:nu12082263. [PMID: 32751086 PMCID: PMC7468713 DOI: 10.3390/nu12082263] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/22/2020] [Accepted: 07/25/2020] [Indexed: 12/13/2022] Open
Abstract
Recent research studies have shown that vitamin C (ascorbic acid) may affect bone mineral density and that a deficiency of ascorbic acid leads to the development of osteoporosis. Patients suffering from an inflammatory bowel disease are at a risk of low bone mineral density. It is vital to notice that patients with Crohn’s disease and ulcerative colitis also are at risk of vitamin C deficiency which is due to factors such as reduced consumption of fresh vegetables and fruits, i.e., the main sources of ascorbic acid. Additionally, some patients follow diets which may provide an insufficient amount of vitamin C. Moreover, serum vitamin C level also is dependent on genetic factors, such as SLC23A1 and SLC23A2 genes, encoding sodium-dependent vitamin C transporters and GSTM1, GSTP1 and GSTT1 genes which encode glutathione S-transferases. Furthermore, ascorbic acid may modify the composition of gut microbiota which plays a role in the pathogenesis of an inflammatory bowel disease.
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84
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Raterman HG, Bultink IE, Lems WF. Osteoporosis in patients with rheumatoid arthritis: an update in epidemiology, pathogenesis, and fracture prevention. Expert Opin Pharmacother 2020; 21:1725-1737. [PMID: 32605401 DOI: 10.1080/14656566.2020.1787381] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Rheumatoid arthritis (RA) is a chronic disabling disease characterized by a symmetrical articular involvement due to ongoing joint inflammation, if left insufficiently treated. Local and generalized bone loss is one of the main extra-articular complications of RA and leads to an increased risk for fragility fractures, which further impair functional ability, quality of life, and life expectancy. Therefore, there is an urgent need for good fracture risk management in the vulnerable RA patient. AREAS COVERED The authors review: the epidemiology and pathophysiology (i.e. risk factors) of osteoporosis (OP), fracture, and vertebral fracture risk assessment, the effects of anti-rheumatic drugs on bone loss, pharmacological treatment of OP in RA including both bisphosphonates (BP) and newer drugs including anti-resorptives and osteoanabolic treatment options. EXPERT OPINION Patients with active RA have elevated bone resorption and local bone loss. Moreover, these patients are at increased risk for generalized bone loss, vertebral and non-vertebral fractures. Since general risk factors (such as low BMI, fall risk) and RA-related factors play a role, optimal fracture prevention in RA patients is based on optimal diagnostics based on both of these factors, and on the use of adequate non-medical and medical treatment options.
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Affiliation(s)
- Hennie G Raterman
- Department of Rheumatology, North West Clinics , Alkmaar, The Netherlands
| | - Irene Em Bultink
- Department of Rheumatology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Rheumatology and Immunology Center , Amsterdam, The Netherlands
| | - Willem F Lems
- Department of Rheumatology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Rheumatology and Immunology Center , Amsterdam, The Netherlands.,Department of Rheumatology, Amsterdam Rheumatology and Immunology Center , Amsterdam, The Netherlands
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85
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Fitzgerald GE, O'Dwyer T, Mockler D, O'Shea FD, Wilson F. Pharmacological treatment for managing bone health in axial spondyloarthropathy: systematic review and meta-analysis. Rheumatol Int 2020; 40:1369-1384. [PMID: 32556472 DOI: 10.1007/s00296-020-04623-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 06/02/2020] [Indexed: 12/16/2022]
Abstract
Axial spondyloarthropathy (axSpA) is associated with an increased prevalence of osteoporosis, but no recommendations exist to guide management. This systematic review and meta-analysis aim to assess the efficacy of pharmacological and non-pharmacological interventions on bone mineral density (BMD) in axSpA. Electronic databases were searched from inception to June 2019 for randomised controlled trials (RCTs) and quasi (q)-RCTs with pharmacological and non-pharmacological interventions. Independent reviewers undertook screening, and risk of bias and quality assessments. Primary outcomes of interest were BMD at spine and hip. Eight studies (two RCTs and six qRCTs) were included (602 participants). Moderate level evidence favoured alendronate over placebo at femoral neck [mean difference (MD) 2.01, 95% CI 0.67 to 3.35], but there was low-level evidence showing no effect at the spine. There was moderate level evidence showing no effect of tumour necrosis factor inhibitors (TNFi) on BMD at total hip (MD - 0.01, 95% CI - 0.06 to 0.04). Very low-level evidence demonstrated no effect of TNFi on spine or femoral neck. Moderate level evidence favoured neridronate over infliximab at the spine (MD 3.26, 95% CI 1.14 to 5.38), but low-level evidence showed no effect at the total hip (MD 2.75, 95% CI - 0.21 to 5.71). There were no eligible studies investigating the efficacy of non-pharmacological interventions. We conditionally recommend alendronate for management of low BMD in axSpA. The balance of evidence does not recommend the use of TNF-inhibitors for treating low BMD. There is a lack of high-quality evidence guiding clinicians treating osteoporosis in axSpA.
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Affiliation(s)
- Gillian E Fitzgerald
- School of Medicine, Trinity College Dublin, Dublin, Ireland.
- Department of Rheumatology, St. James's Hospital, Dublin, Ireland.
| | | | - David Mockler
- John Stearne Library, Trinity Centre for Health Sciences, St. James's Hospital, Dublin, Ireland
| | - Finbar D O'Shea
- School of Medicine, Trinity College Dublin, Dublin, Ireland
- Department of Rheumatology, St. James's Hospital, Dublin, Ireland
| | - Fiona Wilson
- Discipline of Physiotherapy, Trinity College Dublin, Dublin, Ireland
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86
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Inhibiting role of long non-coding RNA LINC01197 in inflammation in rheumatoid arthritis through the microRNA-150/THBS2 axis. Exp Cell Res 2020; 394:112136. [PMID: 32540401 DOI: 10.1016/j.yexcr.2020.112136] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 06/05/2020] [Accepted: 06/06/2020] [Indexed: 01/02/2023]
Abstract
PURPOSE Rheumatoid arthritis (RA) is a commonly diagnosed systemic autoimmune disease. Aberrant expression of long non-coding RNAs (lncRNAs) is closely linked to the development of RA. This study was conducted to explore the functions of the lncRNA LINC01197 in RA progression. METHODS Differentially expressed lncRNAs/microRNAs/mRNAs in patients with RA were analyzed using RNA microarrays. A mouse model with RA was established and RA-fibroblast-like synoviocytes (RA-FLS) were acquired for in vitro experiments. The function of LINC01197 in inflammation and RA progression in mice and its role in the viability of RA-FLS were determined by experiments involving its overexpression or suppression. The sub-cellular localization of LINC01197 was determined and the downstream molecules involved in LINC01197-mediated events were identified. RESULTS LINC01197 was poorly expressed in the synovial tissues in the RA model mice. Overexpression of LINC01197 reduced RA severity in mice and inhibited proliferation and inflammatory responses as well as promoted apoptosis in RA-FLS. Online predictions and dual luciferase reporter gene assays suggested that LINC01197 could bind to miR-150 and further regulate THBS2 expression. LINC01197 promoted THBS2 expression through miR-150 sponging and inactivated the TLR4/NF-κB signaling pathway, thus alleviating RA inflammation. CONCLUSION The current study suggested that LINC01197 sponged miR-150 to promote THBS2 expression, leading to TLR4/NF-κB inactivation, and ameliorated RA inflammation. These findings may offer new insights into RA treatment.
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87
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Fleischmann R, Furst DE, Connolly-Strong E, Liu J, Zhu J, Brasington R. Repository Corticotropin Injection for Active Rheumatoid Arthritis Despite Aggressive Treatment: A Randomized Controlled Withdrawal Trial. Rheumatol Ther 2020; 7:327-344. [PMID: 32185745 PMCID: PMC7211215 DOI: 10.1007/s40744-020-00199-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION The objective of this study was to assess efficacy and safety of repository corticotropin injection (RCI) in subjects with active rheumatoid arthritis (RA) despite treatment with a corticosteroid and one or two disease-modifying antirheumatic drugs (DMARDs). METHODS All subjects received open-label RCI (80 U) twice weekly for 12 weeks (part 1); only those with low disease activity [LDA; i.e., Disease Activity Score 28 joint count and erythrocyte sedimentation rate (DAS28-ESR) < 3.2] were randomly assigned to receive either RCI (80 U) or placebo twice weekly during the 12-week double-blind period (part 2). The primary efficacy endpoint was the proportion of subjects who achieved LDA at week 12. Secondary efficacy endpoints included proportions of subjects who maintained LDA during weeks 12 through 24 and achieved Clinical Disease Activity Index (CDAI) ≤ 10 at weeks 12 and 24. Safety was assessed via adverse event reports. RESULTS Of the 259 enrolled subjects, 235 completed part 1; 154 subjects (n = 77 each for RCI and placebo) entered part 2, and 127 (RCI, n = 71; placebo, n = 56) completed. At week 12, 163 subjects (62.9%) achieved LDA and 169 (65.3%) achieved CDAI ≤ 10 (both p < 0.0001). At week 24, 47 (61.0%) RCI-treated and 32 (42.1%) placebo-treated subjects maintained LDA (p = 0.019); 66 (85.7%) RCI-treated and 50 (65.8%) placebo-treated subjects maintained CDAI ≤ 10 (p = 0.004). No unexpected safety signals were observed. CONCLUSIONS RCI was effective and generally safe in patients with active RA despite corticosteroid/DMARD therapy. By week 12, > 60% of patients achieved LDA, which was maintained with 12 additional weeks of treatment. Most patients who achieved LDA maintained it for 3 months after RCI discontinuation. TRIAL REGISTRATION Clinicaltrials.gov identifier NCT02919761.
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Affiliation(s)
- Roy Fleischmann
- University of Texas Southwestern Medical Center, Metroplex Clinical Research Center, 8144 Walnut Hill Lane, Suite 810, Dallas, TX, 75231, USA.
| | - Daniel E Furst
- Division of Rheumatology, David Geffen School of Medicine, University of California Los Angeles, Peter Morton Medical Building, 200, UCLA Medical Plaza, Suite 365-B, Los Angeles, CA, 90095, USA
| | | | - Jingyu Liu
- Mallinckrodt Pharmaceuticals, 1425 US-206, Bedminster, NJ, 07921, USA
| | - Julie Zhu
- Mallinckrodt Pharmaceuticals, 1425 US-206, Bedminster, NJ, 07921, USA
| | - Richard Brasington
- Division of Rheumatology, Washington University School of Medicine, 4921 Parkview Place, Suite C, 5th Floor, St. Louis, MO, 63110, USA
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88
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Fragility fractures in psoriatic arthritis patients: a matched retrospective cohort study. Clin Rheumatol 2020; 39:3685-3691. [PMID: 32462424 DOI: 10.1007/s10067-020-05074-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 03/20/2020] [Accepted: 04/01/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVE To compare incidental fragility fractures in psoriatic arthritis (PsA) patients with matched controls from a university hospital. METHODS Consecutive PsA patients were matched (age and sex) with controls (1:2). Follow-up began at index date, defined as the date of PsA diagnosis for cases and their respective controls, until the last hospital visit, death or the end of the study (31 December 2017). Electronic medical records were reviewed for osteoporotic fractures. Incidence rates per 100,000 persons-years (PY) of distinct types of fractures after index dates were calculated and compared between groups. A multivariate Cox regression analysis was performed to investigate determinants of fractures. RESULTS Ninety-two PsA patients and 184 controls were included. No difference was found in the overall fracture incidence rate per 100,000 PY between PsA and controls (1020 95% CI 510-1930, vs 870 95% CI 520-1390, p = 0.36). Vertebral fractures were numerically more frequent in PsA patients with an incidence rate of 1020 (95% CI 510-1930) per 100,000 PY versus 460 (95% CI 240-920), per 100,000 PY in the control group but it did not reach statistical significance (p = 0.06). In the Cox regression analysis, after adjusting for bisphosphonate use, only age (HR 1.10, 1.05-1.16, p < 0.001) and female sex (HR 3.94, 1.11-13.91, p = 0.03) were associated with fractures while PsA diagnosis and use of glucocorticoids were not. CONCLUSION In this cohort of PsA patients, no overall increased risk of fractures was found in comparison with matched controls. Key Points • PsA could have different effects on bone, leading to confusing results in bone densitometry readings contributing to the difficulty in establishing the real prevalence of OP in PsA. • Vertebral fractures were more frequent in PsA patients compared to controls, but it did not reach statistical significance. No difference was found in the overall fracture incidence rate.
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89
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Fassio A, Adami G, Giollo A, Viapiana O, Malavolta N, Saviola G, Bortolotti R, Idolazzi L, Bertoldo F, Rossini M, Gatti D. Acute Effects of Glucocorticoid Treatment, TNFα or IL-6R Blockade on Bone Turnover Markers and Wnt Inhibitors in Early Rheumatoid Arthritis: A Pilot Study. Calcif Tissue Int 2020; 106:371-377. [PMID: 31897527 DOI: 10.1007/s00223-019-00649-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 12/13/2019] [Indexed: 12/17/2022]
Abstract
Tumor Necrosis Factor (TNF)-α and Interleukin (IL)-6 play a fundamental role in bone loss in rheumatoid arthritis (RA), partly due to the inhibition of the Wnt canonical pathway. The aim of our study was to investigate the short-term effects of three different treatments on Wnt inhibitors (Dkk-1 and sclerostin) and on bone turnover markers (BTMs): N-propeptide of type I collagen (PINP) and C-terminal telopeptide of type I collagen (β-CTX-I). We performed a retrospective analysis of prospectively collected data. We enrolled women affected by early RA (< 12 months) with active disease (DAS28 ≥ 2.6) despite a 6-month treatment with methotrexate (10-15 mg/week), who then started certolizumab pegol, tocilizumab, or methyl-prednisolone (8 mg/daily). Patients were divided into three groups according to the treatment. Blood samples were collected at baseline, week 1, and week 4. We selected 14 patients treated with certolizumab pegol, 14 patients with tocilizumab, and 20 patients with methyl-prednisolone. No difference between any of the tested parameters was found at baseline. β-CTX-I, Dkk-1, and sclerostin decreased after 1 week of treatment with certolizumab pegol (- 27% ± 21.5, - 50% ± 13.2, and - 30% ± 30.4, respectively, p < 0.05). Methyl-prednisolone induced similar changes, albeit less marked, on β-CTX-I and Wnt inhibitors, with a decrease in PINP (- 16.1% ± 16.5, p < 0.05). Tocilizumab did not significantly affect BTMs or Wnt inhibitors. No significant changes were found for PTH and 25OHD. In the first four weeks of treatment, TNFα inhibition showed strong effects on BTMs and Wnt inhibitors, differently from IL-6 blockade. Glucocorticoids induced similar changes; nonetheless, they showed undesired effects on bone formation.
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Affiliation(s)
- Angelo Fassio
- Rheumatology Unit, University of Verona, Verona, Italy.
| | | | | | | | - Nazzarena Malavolta
- Rheumatology Unit, AOU of Bologna, Policlinico S. Orsola Malpighi, Department Cardio-Toraco-Vascolare Alma Mater Studiorum, Bologna, Italy
| | - Gianantonio Saviola
- Rheumatology and Rehabilitation Unit, Salvatore Maugeri Foundation IRCCS, Castel Goffredo, Mantua, Italy
| | | | - Luca Idolazzi
- Rheumatology Unit, University of Verona, Verona, Italy
| | - Francesco Bertoldo
- Unit of Internal Medicine, Department of Medicine, University of Verona, Verona, Italy
| | | | - Davide Gatti
- Rheumatology Unit, University of Verona, Verona, Italy
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90
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Pharmacological Management of Osteoporosis in Rheumatoid Arthritis Patients: A Review of the Literature and Practical Guide. Drugs Aging 2020; 36:1061-1072. [PMID: 31541358 PMCID: PMC6884430 DOI: 10.1007/s40266-019-00714-4] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic disabling disease that is associated with increased localized and generalized osteoporosis (OP). Previous studies estimated that approximately one-third of the RA population experience bone loss. Moreover, RA patients suffer from a doubled fracture incidence depending on several clinical factors, such as disease severity, age, glucocorticoid (GC) use, and immobility. As OP fractures are related to impaired quality of life and increased mortality rates, OP has an enormous impact on global health status. Therefore, there is an urgent need for a holistic approach in daily clinical practice. In other words, both OP- and RA-related factors should be taken into account in treatment guidelines for OP in RA. First, to determine the actual fracture risk, dual-energy X-ray absorptiometry (DXA), including vertebral fracture assessment (VFA) and calculation of the 10-year fracture risk with FRAX®, should be performed. In case of high fracture risk, calcium and vitamin D should be supplemented alongside anti-osteoporotic treatment. Importantly, RA treatment should be optimal, aiming at low disease activity or remission. Moreover, GC treatment should be at the lowest possible dose. In this way, good fracture risk management will lead to fracture risk reduction in RA patients. This review provides a practical guide for clinicians regarding pharmacological treatment options in RA patients with OP, taking into account both osteoporotic-related factors and factors related to RA.
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91
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Buehring B, Thomas J, Wittkämper T, Baraliakos X, Braun J. [Evaluation of the trabecular bone score (TBS) in routine clinical care of patients with inflammatory rheumatic and non-inflammatory diseases : Correlation with conventional bone mineral density measurement and prevalence of vertebral fractures]. Z Rheumatol 2020; 79:1067-1074. [PMID: 32162022 PMCID: PMC7708337 DOI: 10.1007/s00393-020-00764-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Hintergrund Osteoporosebedingte Frakturen sind bei Patienten mit rheumatoider Arthritis (RA) häufig. Die Messung der Knochenmineraldichte (KDM) mit der Dual-Energie-Röntgenabsorptionsmessung (DXA) allein sagt das Frakturrisiko nur begrenzt voraus. Der Trabecular Bone Score (TBS) ist ein Surrogatmarker für die trabekuläre Mikroarchitektur des Knochens, der das Frakturrisiko unabhängig von der KDM vorhersagen kann. Ziel Ermittlung der Prävalenz von KDM, TBS und osteoporotisch bedingten Wirbelkörperbrüchen („vertebral fractures“ [VF]) bei Patienten mit RA im Vergleich zu Kontrollen mit nichtentzündlichen Muskel-Skelett-Erkrankungen (MSK). Methoden Die Daten von Patienten mit von Rheumatologen diagnostizierter RA und verfügbaren TBS- und DXA-Messungen, die in unserem Krankenhaus von 2006 bis 2014 erhoben wurden, wurden retrospektiv analysiert. Den RA-Patienten wurden Kontrollen mit nichtentzündlichen MSK zugeordnet. Eine „reduzierte Knochengesundheit“ wurde definiert als ein T‑Score <−1,0 und/oder ein TBS-Wert <−1,31. Statistische Vergleiche wurden mit dem Mann-Whitney- und dem Wilcoxon-Test durchgeführt. Ergebnisse Es wurden 143 Patienten mit RA (Alter 72,1 ± 11,1 Jahre, 72 % weiblich) und 106 Kontrollen (Alter 69,6 ± 12,6 Jahre, 75 % weiblich) eingeschlossen. RA-Patienten hatten häufiger eine erniedrigte KDM (n = 102; 71,3 %) und einen erniedrigen TBS-Wert (n = 125; 87,4 %) als die Kontrollen (n = 63; 59,4 % und n = 79; 74,5 %, p = 0,049 und p = 0,009). RA-Patienten hatten mehr VF (n = 52, 36,4 %) als Kontrollen (n = 24, 22,6 %, p = 0,02). Insgesamt hatten 20 Patienten mit VF (26,3 %) eine normale Wirbelsäulen-KDM und 9 (11,8 %) auch eine normale Hüft-KDM. Bei Patienten mit VF war die Kombination eines niedrigen TBS bei normaler WS-KDM häufiger als ein normaler TBS bei niedriger WS-KDM (p = 0,008 für RA, p = 0,025 für Kontrollen). Diskussion VF treten bei Patienten mit normaler KDM auf. Bei Patienten mit VF wurde eine niedrige TBS bei normaler Wirbelsäulen-KDM häufiger gefunden als eine normale TBS bei niedriger Wirbelsäulen-KDM. Die Messung des TBS scheint für die Erkennung eines erhöhten Frakturrisikos bei RA-Patienten mit normaler WS-KDM nützlich zu sein.
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Affiliation(s)
- B Buehring
- Rheumazentrum Ruhrgebiet, Ruhr Universität Bochum, Claudiusstr. 45, 44649, Herne, Deutschland.
| | - J Thomas
- Rheumazentrum Ruhrgebiet, Ruhr Universität Bochum, Claudiusstr. 45, 44649, Herne, Deutschland
| | | | - X Baraliakos
- Rheumazentrum Ruhrgebiet, Ruhr Universität Bochum, Claudiusstr. 45, 44649, Herne, Deutschland
| | - J Braun
- Rheumazentrum Ruhrgebiet, Ruhr Universität Bochum, Claudiusstr. 45, 44649, Herne, Deutschland
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Clynes MA, Jameson K, Prieto-Alhambra D, Harvey NC, Cooper C, Dennison EM. Impact of Rheumatoid Arthritis and Its Management on Falls, Fracture and Bone Mineral Density in UK Biobank. Front Endocrinol (Lausanne) 2019; 10:817. [PMID: 31849841 PMCID: PMC6888088 DOI: 10.3389/fendo.2019.00817] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 11/08/2019] [Indexed: 01/10/2023] Open
Abstract
Objectives: Rheumatoid arthritis (RA) is a systemic chronic inflammatory disease which presents with polyarthritis in addition to extra-articular manifestations. Historically, studies have shown a link between RA and adverse musculoskeletal outcomes but these studies were reported before the widespread use of biologic therapies. The aim of this study was therefore to investigate associations between RA, RA medications and bone mineral density, falls and fractures, using UK Biobank data. Methods: Diagnosis of RA was made using Hospital Episode Statistics (HES) ICD-10 coding. We assessed RA relationships with estimated bone mineral density (eBMD) from heel quantitative ultrasound measurements, self-reported falls (in last year) and HES recorded fracture, adjusted for age, ethnicity, BMI, smoking status, and physical activity. Results: Of 502,543 participants, 3849 (1.4%) of women and 1643 (0.7%) of men had a diagnosis of RA. Median age of the participants was 57 years (IQR 50-63) in women and 58 (IQR 50-64) in men. RA was associated with lower eBMD (men: β -0.244, 95% CI -0.378, -0.110 p < 0.001; women: β -0.217, 95% CI -0.297, -0.138 p < 0.001) a reported fall in the last year (men: OR 1.54, 95% CI 1.26, 1.87 p < 0.001; women: OR 1.36, 95% CI 1.19, 1.56 p < 0.001) and fracture in women (OR 1.76, 95% CI 1.43, 2.16 p < 0.001). Corticosteroid therapy in men (β -0.934, 95% CI -1.565, -0.304 p = 0.004) and disease modifying anti-rheumatic drug (DMARD) use in both sexes (men: β -0.437, 95% CI -0.761, -0.112 p = 0.008; women: β -0.243, 95% CI -0.421, -0.065 p = 0.007), but not biologic therapy, were associated with a lower eBMD with RA. Conclusions: RA was associated with lower eBMD, increased falls and fracture. Corticosteroid and DMARD therapy, but not biologic therapy, were associated with lower eBMD.
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Affiliation(s)
- Michael A. Clynes
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, United Kingdom
| | - Karen Jameson
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, United Kingdom
| | | | - Nicholas C. Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, United Kingdom
| | - Cyrus Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, United Kingdom
- NIHR Musculoskeletal Biomedical Research Unit, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Elaine M. Dennison
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, United Kingdom
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93
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Osteoporosis in Rheumatic Diseases. Int J Mol Sci 2019; 20:ijms20235867. [PMID: 31766755 PMCID: PMC6928928 DOI: 10.3390/ijms20235867] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/16/2019] [Accepted: 11/21/2019] [Indexed: 12/17/2022] Open
Abstract
Osteoporosis is a chronic disease characterized by an increased risk of fragility fracture. Patients affected by rheumatic diseases are at greater risk of developing osteoporosis. The purpose of the present review is to discuss the pathogenesis, epidemiology, and treatment of osteoporosis in patients affected by rheumatic diseases with special focus for rheumatoid arthritis, psoriatic arthritis, spondyloarthritis, systemic lupus erythematosus, systemic sclerosis, vasculitides, Sjogren syndrome, and crystal-induced arthritis.
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94
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Tong JJ, Xu SQ, Zong HX, Pan MJ, Teng YZ, Xu JH. Prevalence and risk factors associated with vertebral osteoporotic fractures in patients with rheumatoid arthritis. Clin Rheumatol 2019; 39:357-364. [PMID: 31691041 DOI: 10.1007/s10067-019-04787-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 08/16/2019] [Accepted: 09/21/2019] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To explore the prevalence and risk factors of osteoporosis (OP) and vertebral osteoporotic fracture (VOPF) in patients with rheumatoid arthritis (RA). METHODS Anteroposterior and lateral X-ray examination of the vertebral column (T4-L4) was used for the semi-quantitative assessment of VOPF. Bone mineral density was measured by dual-energy X-ray absorptiometry. RESULTS Of 865 RA patients, the prevalence of OP and VOPF was 33.6% and 20.2%, respectively. Patients with OP or VOPF were older, and had longer term use and a larger daily amount and cumulative dose of glucocorticoids (GCs), longer disease duration, and higher Health Assessment Questionnaire (HAQ) scores and Sharp scores than patients without OP or VOPF (P < 0.05). OP was also correlated with higher disease activity. The patients treated with GCs had higher incidences of OP and VOPF than the patients without GCs (P < 0.05). The cutoff values in the area under curve (AUC) of the daily dose or treatment course of GCs-VOPF were 9 mg and 37.5 days. Older age, female sex, and a higher Sharp score were risk factors for OP in RA patients, while higher BMI was a protective factor. Older age and a high GC daily dose were risk factors for VOPF in RA patients. CONCLUSIONS RA patients have a high prevalence of OP and VOPF. Older age, female sex, lower BMI, and higher activity and severity of RA are closely related with OP. Older age and a higher GC daily dose are risk factors for VOPF in RA patients. Key Points • Older age, female sex, lower BMI, and a higher Sharp score were risk factors for OP in RA patients. • Older age and a high GC daily dose were risk factors for VOPF in RA patients. • OP and VOPF in RA patients were correlated with longer disease duration and higher severity of RA.
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Affiliation(s)
- Jing-Jing Tong
- Department of Rheumatology & Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China
| | - Sheng-Qian Xu
- Department of Rheumatology & Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China.
| | - He-Xiang Zong
- Department of Rheumatology & Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China
| | - Mei-Juan Pan
- Department of Rheumatology & Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China
| | - Yu-Zhu Teng
- Department of Rheumatology & Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China
| | - Jian-Hua Xu
- Department of Rheumatology & Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China
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95
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Chen JF, Lin PW, Tsai YR, Yang YC, Kang HY. Androgens and Androgen Receptor Actions on Bone Health and Disease: From Androgen Deficiency to Androgen Therapy. Cells 2019; 8:cells8111318. [PMID: 31731497 PMCID: PMC6912771 DOI: 10.3390/cells8111318] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 10/21/2019] [Accepted: 10/22/2019] [Indexed: 12/12/2022] Open
Abstract
Androgens are not only essential for bone development but for the maintenance of bone mass. Therefore, conditions with androgen deficiency, such as male hypogonadism, androgen-insensitive syndromes, and prostate cancer with androgen deprivation therapy are strongly associated with bone loss and increased fracture risk. Here we summarize the skeletal effects of androgens—androgen receptors (AR) actions based on in vitro and in vivo studies from animals and humans, and discuss bone loss due to androgens/AR deficiency to clarify the molecular basis for the anabolic action of androgens and AR in bone homeostasis and unravel the functions of androgen/AR signaling in healthy and disease states. Moreover, we provide evidence for the skeletal benefits of androgen therapy and elucidate why androgens are more beneficial than male sexual hormones, highlighting their therapeutic potential as osteoanabolic steroids in improving bone fracture repair. Finally, the application of selective androgen receptor modulators may provide new approaches for the treatment of osteoporosis and fractures as well as building stronger bones in diseases dependent on androgens/AR status.
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Affiliation(s)
- Jia-Feng Chen
- Division of Rheumatology, Allergy and Immunology, Department of Internal Medicine, Kaohsiung Chang-Gung Memorial Hospital and Chang Gung University, College of Medicine, Kaohsiung 833, Taiwan;
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan; (P.-W.L.); (Y.-R.T.); (Y.-C.Y.)
| | - Pei-Wen Lin
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan; (P.-W.L.); (Y.-R.T.); (Y.-C.Y.)
- Center for Menopause and Reproductive Medicine Research, Department of Obstetrics and Gynecology, Kaohsiung Chang-Gung Memorial Hospital and Chang Gung University, College of Medicine, Kaohsiung 833, Taiwan
| | - Yi-Ru Tsai
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan; (P.-W.L.); (Y.-R.T.); (Y.-C.Y.)
- Center for Menopause and Reproductive Medicine Research, Department of Obstetrics and Gynecology, Kaohsiung Chang-Gung Memorial Hospital and Chang Gung University, College of Medicine, Kaohsiung 833, Taiwan
- An-Ten Obstetrics and Gynecology Clinic, Kaohsiung 802, Taiwan
| | - Yi-Chien Yang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan; (P.-W.L.); (Y.-R.T.); (Y.-C.Y.)
- Department of Dermatology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan
| | - Hong-Yo Kang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan; (P.-W.L.); (Y.-R.T.); (Y.-C.Y.)
- Center for Menopause and Reproductive Medicine Research, Department of Obstetrics and Gynecology, Kaohsiung Chang-Gung Memorial Hospital and Chang Gung University, College of Medicine, Kaohsiung 833, Taiwan
- Correspondence: ; Tel.: +886-7-731-7123 (ext. 8898)
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96
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Determination of serum bone-related minerals during denosumab treatment in osteoporosis patients with rheumatoid arthritis: Mineral change by denosumab in osteoporosis with rheumatoid arthritis. Clin Nutr ESPEN 2019; 26:53-56. [PMID: 29908683 DOI: 10.1016/j.clnesp.2018.04.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 04/24/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVES This study included 51 osteoporosis patients with rheumatoid arthritis (RA) who were treated with anti-resorption drug, denosumab. To date, there has been no report on the changes of bone-related minerals after anti-resorption drug therapy. METHODS Fifty one osteoporotic patients with RA were retrospectively enrolled. Serum Zinc (Zn), Magnesium (Mg), Iron (Fe), and Copper (Cu) were examined at 1 week, 1, 2, 4, 6, 8, 10, 12 months. Lumbar spine (L1-4) bone mineral density (L-BMD), and bilateral total hip BMD (H-BMD) were examined before and at 6 and 12 months after treatment commencement. RESULTS Serum Fe gradually increased except at 4 and 10 months, and significantly increased at 12 months. Serum Mg slightly decreased at 1 week and 1 month, then increased up to 4 months, then gradually decreased to 8 months, then increased thereafter. Serum Zn significantly increased at every time point except at 1 week during the period. Serum Cu increased during the period but slightly decreased at 2, 8, and 12 months. L-BMD as well as H-BMD significantly increased at 12 months (5.1% and 5.1%, respectively). CONCLUSIONS Denosumab might be a good option to improve bone-related minerals in OP patients with RA even without dietary supplement. Serum Fe and Mg values became approximately within normal range after the therapy. On the other hand, serum Zn significantly increased for 12 months, however, the Zn values showed still low status after the treatment. Thus, Zn supplementation and/or nutrition education are basically required for OP patients with RA, even though denosumab increases serum Zn level.
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97
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Hong WJ, Chen W, Yeo KJ, Huang PH, Chen DY, Lan JL. Increased risk of osteoporotic vertebral fracture in rheumatoid arthritis patients with new-onset cardiovascular diseases: a retrospective nationwide cohort study in Taiwan. Osteoporos Int 2019; 30:1617-1625. [PMID: 31127317 DOI: 10.1007/s00198-019-04966-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 04/07/2019] [Indexed: 12/27/2022]
Abstract
INTRODUCTION Both cardiovascular diseases (CVD) and osteoporosis are common comorbidities in rheumatoid arthritis (RA) patients. Although accumulating evidence indicates a link between CVD and osteoporotic fracture, whether CVD contributes to osteoporotic fracture risk in RA has yet to be explored. We examined the incidence rate and risk factors of osteoporotic vertebral fracture in RA patients with new-onset CVD (RA-CVD) and evaluated the effects of medications on such fracture risk. METHODS A retrospective study was conducted using a nationwide database from 2000 to 2010: 1267 RA-CVD and 1267 non-CVD patients were enrolled from 30,507 patients with newly diagnosed RA. The main outcome was the development of osteoporotic vertebral fracture. After being adjusted for age, gender, and comorbidities, the Cox proportional hazard model was used to identify independent factors contributing to osteoporotic vertebral fracture. RESULTS The adjusted hazard ratio (aHR) of developing osteoporotic vertebral fracture was 1.47-fold greater in RA-CVD group than in non-CVD group (95% confidence interval 1.19-1.81, p < 0.001). Both the age above 40 years and female gender were significant risk factors for developing osteoporotic vertebral fracture in RA-CVD patients. Using patients not taking medication as a reference group, the aHR of osteoporotic vertebral fracture was significantly lower in those receiving statins (0.50), low-dose corticosteroids (0.57), or hydroxychloroquine (0.12). CONCLUSIONS The risk of osteoporotic vertebral fracture was significantly increased in RA-CVD patients, particularly women above 40 years of age, and could be reduced by statin therapy. However, the protective effect of low-dose corticosteroids or hydroxychloroquine on osteoporotic vertebral fracture risk needs further validation.
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Affiliation(s)
- W-J Hong
- Division of Rheumatology and Immunology, China Medical University Hospital, Taichung, Taiwan
| | - W Chen
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
- College of Medicine, China Medical University, Taichung, Taiwan
| | - K-J Yeo
- Division of Rheumatology and Immunology, China Medical University Hospital, Taichung, Taiwan
| | - P-H Huang
- Division of Rheumatology and Immunology, China Medical University Hospital, Taichung, Taiwan
- College of Medicine, China Medical University, Taichung, Taiwan
| | - D-Y Chen
- College of Medicine, China Medical University, Taichung, Taiwan.
- Translational Medicine Laboratory, Rheumatology and Immunology Center, China Medical University Hospital, Taichung, Taiwan.
- Rheumatology and Immunology Center, China Medical University Hospital, No. 2, Yude Road, Taichung, 40447, Taiwan.
| | - J-L Lan
- College of Medicine, China Medical University, Taichung, Taiwan.
- Translational Medicine Laboratory, Rheumatology and Immunology Center, China Medical University Hospital, Taichung, Taiwan.
- Rheumatology and Immunology Center, China Medical University Hospital, No. 2, Yude Road, Taichung, 40447, Taiwan.
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98
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Steffen U, Schett G, Bozec A. How Autoantibodies Regulate Osteoclast Induced Bone Loss in Rheumatoid Arthritis. Front Immunol 2019; 10:1483. [PMID: 31333647 PMCID: PMC6619397 DOI: 10.3389/fimmu.2019.01483] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 06/13/2019] [Indexed: 12/29/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease, characterized by autoimmunity that triggers joint inflammation and tissue destruction. Traditional concepts of RA pathogenesis have strongly been focused on inflammation. However, more recent evidence suggests that autoimmunity per se modulates the disease and in particular bone destruction during the course of RA. RA-associated bone loss is caused by increased osteoclast differentiation and activity leading to rapid bone resorption. Autoimmunity in RA is based on autoantibodies such as rheumatoid factor (RF) and autoantibodies against citrullinated proteins (ACPA). These autoantibodies exert effector functions on immune cells and on bone resorbing osteoclasts, thereby facilitating bone loss. This review summarizes potential pathways involved in increased destruction of bone tissue in RA, particularly focusing on the direct and indirect actions of autoantibodies on osteoclast generation and function.
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Affiliation(s)
- Ulrike Steffen
- Department of Internal Medicine 3, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Georg Schett
- Department of Internal Medicine 3, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Aline Bozec
- Department of Internal Medicine 3, University of Erlangen-Nuremberg, Erlangen, Germany
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Takeuchi T, Tanaka Y, Soen S, Yamanaka H, Yoneda T, Tanaka S, Nitta T, Okubo N, Genant HK, van der Heijde D. Effects of the anti-RANKL antibody denosumab on joint structural damage in patients with rheumatoid arthritis treated with conventional synthetic disease-modifying antirheumatic drugs (DESIRABLE study): a randomised, double-blind, placebo-controlled phase 3 trial. Ann Rheum Dis 2019; 78:899-907. [PMID: 31036625 PMCID: PMC6585575 DOI: 10.1136/annrheumdis-2018-214827] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 03/19/2019] [Accepted: 03/20/2019] [Indexed: 01/30/2023]
Abstract
Objective To evaluate the efficacy of denosumab in suppressing joint destruction when added to conventional synthetic disease-modifying antirheumatic drug (csDMARD) therapy in patients with rheumatoid arthritis (RA). Methods This was a multi-centre, randomised, double-blind, parallel-group, placebo-controlled phase 3 study in Japan. Patients with RA aged ≥20 years receiving csDMARDs were randomly assigned (1:1:1) to denosumab 60 mg every 3 months (Q3M), denosumab 60 mg every 6 months (Q6M) or placebo. The change in the modified total Sharp score (mTSS) and effect on bone mineral density (BMD) at 12 months was evaluated. Results In total, 654 patients received the trial drugs. Denosumab groups showed significantly less progression of joint destruction. The mean changes in the mTSS at 12 months were 1.49 (95% CI 0.99 to 1.99) in the placebo group, 0.99 (95% CI 0.49 to 1.49) in the Q6M group (p=0.0235) and 0.72 (95% CI 0.41 to 1.03) in the Q3M group (p=0.0055). The mean changes in bone erosion score were 0.98 (95% CI 0.65 to 1.31) in the placebo group, 0.51 (95% CI 0.22 to 0.80) in the Q6M group (p=0.0104) and 0.22 (95% CI 0.09 to 0.34) in the Q3M group (p=0.0001). No significant between-group difference was observed in the joint space narrowing score. The per cent change in lumbar spine (L1–L4) BMD in the placebo, Q6M and Q3M groups were −1.03%, 3.99% (p<0.0001) and 4.88% (p<0.0001). No major differences were observed among safety profiles. Conclusions Denosumab inhibits the progression of joint destruction, increases BMD and is well tolerated in patients with RA taking csDMARD.
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Affiliation(s)
- Tsutomu Takeuchi
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Yoshiya Tanaka
- First Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Satoshi Soen
- Department of Orthopedics and Rheumatology, Kindai University Nara Hospital, Ikoma, Japan
| | - Hisashi Yamanaka
- Institute of Rheumatology, Tokyo Women's Medical University, Tokyo, Japan
| | - Toshiyuki Yoneda
- Department of Biochemistry, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Sakae Tanaka
- Department of Orthopedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takaya Nitta
- Clinical Development Department, Daiichi Sankyo Co., Ltd, Shinagawa-ku, Tokyo, Japan
| | - Naoki Okubo
- Biostatistics & Data Management Department, Daiichi Sankyo Co., Ltd, Shinagawa-ku, Tokyo, Japan
| | - Harry K Genant
- Department of Radiology, Medicine and Orthopedic Surgery, University of California, San Francisco, California, USA
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The Role of Macrophage in the Pathogenesis of Osteoporosis. Int J Mol Sci 2019; 20:ijms20092093. [PMID: 31035384 PMCID: PMC6539137 DOI: 10.3390/ijms20092093] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 04/20/2019] [Accepted: 04/26/2019] [Indexed: 12/13/2022] Open
Abstract
Osteoporosis is a systemic disease with progressive bone loss. The bone loss is associated with an imbalance between bone resorption via osteoclasts and bone formation via osteoblasts. Other cells including T cells, B cells, macrophages, and osteocytes are also involved in the pathogenesis of osteoporosis. Different cytokines from activated macrophages can regulate or stimulate the development of osteoclastogenesis-associated bone loss. The fusion of macrophages can form multinucleated osteoclasts and, thus, cause bone resorption via the expression of IL-4 and IL-13. Different cytokines, endocrines, and chemokines are also expressed that may affect the presentation of macrophages in osteoporosis. Macrophages have an effect on bone formation during fracture-associated bone repair. However, activated macrophages may secrete proinflammatory cytokines that induce bone loss by osteoclastogenesis, and are associated with the activation of bone resorption. Targeting activated macrophages at an appropriate stage may help inhibit or slow the progression of bone loss in patients with osteoporosis.
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