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Biedroń G, Czepiel M, Siedlar M, Korkosz M. Serum concentration of dickkopf-related protein 1 (DKK1) in psoriatic arthritis in the context of bone remodelling. Rheumatol Int 2023; 43:2175-2183. [PMID: 37750896 PMCID: PMC10587027 DOI: 10.1007/s00296-023-05452-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 08/30/2023] [Indexed: 09/27/2023]
Abstract
Psoriatic arthritis (PsA) is a chronic inflammatory disease, characterised by the pathological occurrence of two opposite phenomena-osteoresorption and osteogenesis. Dickkopf-related protein 1 (DKK1) which inhibits the Wingless protein (Wnt) signalling pathway has been shown to be a master regulator of bone remodeling in inflammatory rheumatic diseases. However, the exact relationship between DKK1 serum level and bone remodelling is not clear. The goal of this study is to review state-of-the-art knowledge on the association of serum DKK1 with a bone remodelling in PsA. The MEDLINE-PubMed, EMBASE, Scopus, Web of Science and DOAJ databases were searched for appropriate papers. The English terms: 'DKK1', 'Dickkopf-1' 'Dickkopf related protein 1', 'psoriatic arthritis' and 'PsA' were used for search purposes. Eight original articles and two reviews were identified up to August 2023. In four out of 8 discussed studies DKK1 serum level was higher in PsA patients than in healthy controls [Dalbeth, p < 0.01; Diani, p < 0.001; Chung, p < 0.01; Abd el Hamid, p < 0.001)], it was comparable in another (Daousiss, p = 0.430) and was lower in two (Fassio2017, p < 0.05; Fassio2019, p < 0.05). In one study, the comparative groups included patients with axial spondyloarthritis, where DKK1 serum levels were lower in PsA groups [Jadon, peripheral PsA, p = 0.01]. The true relative serum concentration of DKK1 in PsA, as well as its influence on osteogenesis and osteoresorption, is still equivocal. Further studies on this matter with consistent and stringent methodology are warranted.
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Affiliation(s)
- Grzegorz Biedroń
- Department of Rheumatology and Immunology, Jagiellonian University Medical College, Jakubowskiego 2, Krakow, Poland
| | - Marcin Czepiel
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Maciej Siedlar
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Mariusz Korkosz
- Department of Rheumatology and Immunology, Jagiellonian University Medical College, Jakubowskiego 2, Krakow, Poland
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2
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Azadeh H. Association between disease-modifying antirheumatic drugs and bone turnover biomarkers. Int J Rheum Dis 2023; 26:437-445. [PMID: 36573666 DOI: 10.1111/1756-185x.14550] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/24/2022] [Accepted: 12/15/2022] [Indexed: 12/28/2022]
Abstract
Rheumatoid arthritis (RA) has been linked to an increased risk of osteoporosis as well as fractures. Patients diagnosed with RA had a 25% increased risk of osteoporotic fracture, according to a recent population-based cohort study that compared them to people without RA. Several studies have found a correlation between osteoporosis and the presence of pro-inflammatory cytokines, such as tumor necrosis factor (TNF)-α, interleukin (IL)-1, and 6. These cytokines play a crucial part in the process of bone resorption by boosting osteoclast activation and encouraging osteoclast differentiation. Based on the correlation between RA, osteoporosis, and inflammation, it is possible that systemic immunosuppression with disease-modifying antirheumatic drugs (DMARDs) can help individuals with RA have a lower chance of developing osteoporosis and osteoporotic fractures. There is little information on how different DMARDs, biologic or non-biologic, affect RA patients' bone metabolism. In this study, we present an overview of the influence that targeted therapies, such as biologics, non-biologics, and small molecule inhibitors, have on bone homeostasis in RA patients.
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Affiliation(s)
- Hossein Azadeh
- Department of Internal Medicine, Rheumatology Division, Orthopedic Research Center, Mazandaran University of Medical Sciences, Sari, Iran
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3
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Li X, Ji L, Men X, Chen X, Zhi M, He S, Chen S. Pyroptosis in bone loss. Apoptosis 2023; 28:293-312. [PMID: 36645574 PMCID: PMC9842222 DOI: 10.1007/s10495-022-01807-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/28/2022] [Indexed: 01/17/2023]
Abstract
Pyroptosis could be responsible for the bone loss from bone metabolic diseases, leading to the negative impact on people's health and life. It has been shown that osteoclasts, osteoblasts, macrophages, chondrocytes, periodontal and gingival cells may be involved in bone loss linked with pyroptosis. So far, the involved mechanisms have not been fully elucidated. In this review, we introduced the related cells involved in the pyroptosis associated with bone loss and summarized the role of these cells in the bone metabolism during the process of pyroptosis. We also discuss the clinical potential of targeting mechanisms in the osteoclasts, osteoblasts, macrophages, chondrocytes, periodontal and gingival cells touched upon pyroptosis to treat bone loss from bone metabolic diseases as well as the challenges of avoiding potential side effects and producing efficient treatment methods.
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Affiliation(s)
- Xinyi Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan China
| | - Ling Ji
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan China
| | - Xinrui Men
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan China
| | - Xinyi Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan China
| | - Maohui Zhi
- Functional Laboratory, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan China
| | - Shushu He
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan China
| | - Song Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan China
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4
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Improved Protocol to Study Osteoblast and Adipocyte Differentiation Balance. Biomedicines 2022; 11:biomedicines11010031. [PMID: 36672539 PMCID: PMC9855576 DOI: 10.3390/biomedicines11010031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 10/26/2022] [Accepted: 12/08/2022] [Indexed: 12/25/2022] Open
Abstract
Adipogenesis-osteoblastogenesis balance-rupture is relevant in multiple diseases. Current human mesenchymal stem cells (hMSCs) in vitro differentiation models are expensive, and are hardly reproducible. Their scarcity and variability make an affordable and reliable method to study adipocyte-osteoblast-equilibrium difficult. Moreover, media composition has been inconstant throughout the literature. Our aims were to compare improved differentiation lab-made media with consensus/commercial media, and to identify a cell-line to simultaneously evaluate both MSCs differentiations. Lab-made media were compared with consensus and commercial media in C3H10T1/2 and hMSC, respectively. Lab-made media were tested on aged women primary pre-osteoblast-like cells. To determine the optimum cell line, C3H10T1/2 and hMSC-TERT cells were differentiated to both cell fates. Differentiation processes were evaluated by adipocytic and osteoblastic gene-markers expression and staining. Lab-made media significantly increased consensus medium induction and overcame commercial media in hMSCs differentiation to adipocytes and osteoblasts. Pre-osteoblast-like cells only properly differentiate to adipocyte. Lab-made media promoted adipocyte gene-markers expression in C3H10T1/2 and hMSC-TERT, and osteoblast gene-markers in C3H10T1/2. Oil Red O and Alizarin Red staining supported these findings. Optimized lab-made media were better at differentiating MSCs compared to consensus/commercial media, and evidenced the adipogenic commitment of pre-osteoblast-like cells from aged-women. C3H10T1/2 is an optimum MSC line by which to study adipocyte-osteoblast differentiation balance.
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Kim JH, Kim K, Kim I, Seong S, Koh JT, Kim N. Overexpression of Neurogenin 1 Negatively Regulates Osteoclast and Osteoblast Differentiation. Int J Mol Sci 2022; 23:ijms23126708. [PMID: 35743149 PMCID: PMC9223505 DOI: 10.3390/ijms23126708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/10/2022] [Accepted: 06/13/2022] [Indexed: 02/05/2023] Open
Abstract
Neurogenin 1 (Ngn1) belongs to the basic helix–loop–helix (bHLH) transcription factor family and plays important roles in specifying neuronal differentiation. The present study aimed to determine whether forced Ngn1 expression contributes to bone homeostasis. Ngn1 inhibited the p300/CREB-binding protein-associated factor (PCAF)-induced acetylation of nuclear factor of activated T cells 1 (NFATc1) and runt-related transcription factor 2 (Runx2) through binding to PCAF, which led to the inhibition of osteoclast and osteoblast differentiation, respectively. In addition, Ngn1 overexpression inhibited the TNF-α- and IL-17A-mediated enhancement of osteoclast differentiation and IL-17A-induced osteoblast differentiation. These findings indicate that Ngn1 can serve as a novel therapeutic agent for treating ankylosing spondylitis with abnormally increased bone formation and resorption.
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Affiliation(s)
- Jung Ha Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Korea; (J.H.K.); (K.K.); (I.K.); (S.S.)
- Hard-Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju 61186, Korea;
| | - Kabsun Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Korea; (J.H.K.); (K.K.); (I.K.); (S.S.)
| | - Inyoung Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Korea; (J.H.K.); (K.K.); (I.K.); (S.S.)
| | - Semun Seong
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Korea; (J.H.K.); (K.K.); (I.K.); (S.S.)
- Hard-Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju 61186, Korea;
| | - Jeong-Tae Koh
- Hard-Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju 61186, Korea;
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju 61186, Korea
| | - Nacksung Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Korea; (J.H.K.); (K.K.); (I.K.); (S.S.)
- Hard-Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju 61186, Korea;
- Correspondence: ; Tel.: +82-61-379-2835
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Ji L, Li X, He S, Chen S. Regulation of osteoclast-mediated bone resorption by microRNA. Cell Mol Life Sci 2022; 79:287. [PMID: 35536437 PMCID: PMC11071904 DOI: 10.1007/s00018-022-04298-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/15/2022] [Accepted: 04/08/2022] [Indexed: 02/08/2023]
Abstract
Osteoclast-mediated bone resorption is responsible for bone metabolic diseases, negatively impacting people's health and life. It has been demonstrated that microRNA influences the differentiation of osteoclasts by regulating the signaling pathways during osteoclast-mediated bone resorption. So far, the involved mechanisms have not been fully elucidated. This review introduced the pathways involved in osteoclastogenesis and summarized the related microRNAs binding to their specific targets to mediate the downstream pathways in osteoclast-mediated bone resorption. We also discuss the clinical potential of targeting microRNAs to treat osteoclast-mediated bone resorption as well as the challenges of avoiding potential side effects and producing efficient delivery methods.
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Affiliation(s)
- Ling Ji
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Xinyi Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Shushu He
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
| | - Song Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
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7
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Inoue K, Ng C, Xia Y, Zhao B. Regulation of Osteoclastogenesis and Bone Resorption by miRNAs. Front Cell Dev Biol 2021; 9:651161. [PMID: 34222229 PMCID: PMC8249944 DOI: 10.3389/fcell.2021.651161] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 05/12/2021] [Indexed: 01/12/2023] Open
Abstract
Osteoclasts are specialized bone-resorbing cells that contribute to physiological bone development and remodeling in bone metabolism throughout life. Abnormal production and activation of osteoclasts lead to excessive bone resorption in pathological conditions, such as in osteoporosis and in arthritic diseases with bone destruction. Recent epigenetic studies have shed novel insight into the dogma of the regulation of gene expression. microRNAs belong to a category of epigenetic regulators, which post-transcriptionally regulate and silence target gene expression, and thereby control a variety of biological events. In this review, we discuss miRNA biogenesis, the mechanisms utilized by miRNAs, several miRNAs that play important roles in osteoclast differentiation, function, survival and osteoblast-to-osteoclast communication, and their translational potential and challenges in bone biology and skeletal diseases.
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Affiliation(s)
- Kazuki Inoue
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, United States,Department of Medicine, Weill Cornell Medicine, New York, NY, United States
| | - Courtney Ng
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, United States
| | - Yuhan Xia
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, United States
| | - Baohong Zhao
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, United States,Department of Medicine, Weill Cornell Medicine, New York, NY, United States,Graduate Program in Cell and Developmental Biology, Weill Cornell Medicine Graduate School of Medical Sciences, New York, NY, United States,*Correspondence: Baohong Zhao,
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8
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The Role of Collagen Triple Helix Repeat-Containing 1 Protein (CTHRC1) in Rheumatoid Arthritis. Int J Mol Sci 2021; 22:ijms22052426. [PMID: 33670905 PMCID: PMC7957534 DOI: 10.3390/ijms22052426] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/13/2021] [Accepted: 01/14/2021] [Indexed: 01/15/2023] Open
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease causing inflammation of joints, cartilage destruction and bone erosion. Biomarkers and new drug targets are actively sought and progressed to improve available options for patient treatment. The Collagen Triple Helix Repeat Containing 1 protein (CTHRC1) may have an important role as a biomarker for rheumatoid arthritis, as CTHRC1 protein concentration is significantly elevated in the peripheral blood of rheumatoid arthritis patients compared to osteoarthritis (OA) patients and healthy individuals. CTHRC1 is a secreted glycoprotein that promotes cell migration and has been implicated in arterial tissue-repair processes. Furthermore, high CTHRC1 expression is observed in many types of cancer and is associated with cancer metastasis to the bone and poor patient prognosis. However, the function of CTHRC1 in RA is still largely undefined. The aim of this review is to summarize recent findings on the role of CTHRC1 as a potential biomarker and pathogenic driver of RA progression. We will discuss emerging evidence linking CTHRC1 to the pathogenic behavior of fibroblast-like synoviocytes and to cartilage and bone erosion through modulation of the balance between bone resorption and repair.
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9
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Role of Synovial Exosomes in Osteoclast Differentiation in Inflammatory Arthritis. Cells 2021; 10:cells10010120. [PMID: 33435236 PMCID: PMC7827682 DOI: 10.3390/cells10010120] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/30/2020] [Accepted: 01/08/2021] [Indexed: 01/01/2023] Open
Abstract
This study aimed to investigate the characteristics of exosomes isolated from synovial fluid and their role in osteoclast differentiation in different types of inflammatory arthritis. Exosomes isolated from synovial fluid of rheumatoid arthritis (RA), ankylosing spondylitis (AS), gout, and osteoarthritis (OA) patients were co-incubated with CD14+ mononuclear cells from healthy donors without macrophage colony-stimulating factor (M-CSF) and receptor activator of nuclear factor kappa-B ligand (RANKL). Osteoclast differentiation was evaluated via tartrate-resistant acid phosphatase (TRAP) staining and activity and F-actin ring formation. RANKL expression on synovial exosomes was assessed using flow cytometry and an enzyme-linked immunosorbent assay (ELISA). Synovial exosomes were the lowest in OA patients; these induced osteoclastogenesis in the absence of M-CSF and RANKL. Osteoclastogenesis was significantly higher with more exosomes in RA (p = 0.030) than in OA patients, but not in AS or gout patients. On treating macrophages with a specified number of synovial exosomes from RA/AS patients, exosomes induced greater osteoclastogenesis in RA than in AS patients. Synovial exosomal RANKL levels were significantly higher in RA (p = 0.035) than in AS patients. Synovial exosome numbers vary with the type of inflammatory arthritis. Synovial exosomes from RA patients may bear the disease-specific “synovial signature of osteoclastogenesis.”
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10
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Deng Z, Ng C, Inoue K, Chen Z, Xia Y, Hu X, Greenblatt M, Pernis A, Zhao B. Def6 regulates endogenous type-I interferon responses in osteoblasts and suppresses osteogenesis. eLife 2020; 9:e59659. [PMID: 33373293 PMCID: PMC7771961 DOI: 10.7554/elife.59659] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 12/15/2020] [Indexed: 12/28/2022] Open
Abstract
Bone remodeling involves a balance between bone resorption and formation. The mechanisms underlying bone remodeling are not well understood. DEF6 is recently identified as a novel loci associated with bone mineral density. However, it is unclear how Def6 impacts bone remodeling. We identify Def6 as a novel osteoblastic regulator that suppresses osteoblastogenesis and bone formation. Def6 deficiency enhances both bone resorption and osteogenesis. The enhanced bone resorption in Def6-/- mice dominates, leading to osteoporosis. Mechanistically, Def6 inhibits the differentiation of both osteoclasts and osteoblasts via a common mechanism through endogenous type-I IFN-mediated feedback inhibition. RNAseq analysis shows expression of a group of IFN stimulated genes (ISGs) during osteoblastogenesis. Furthermore, we found that Def6 is a key upstream regulator of IFNβ and ISG expression in osteoblasts. Collectively, our results identify a novel immunoregulatory function of Def6 in bone remodeling, and shed insights into the interaction between immune system and bone.
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Affiliation(s)
- Zhonghao Deng
- Arthritis and Tissue Degeneration Program and David Z. Rosensweig Genomics Research Center, Hospital for Special SurgeryNew YorkUnited States
| | - Courtney Ng
- Arthritis and Tissue Degeneration Program and David Z. Rosensweig Genomics Research Center, Hospital for Special SurgeryNew YorkUnited States
| | - Kazuki Inoue
- Arthritis and Tissue Degeneration Program and David Z. Rosensweig Genomics Research Center, Hospital for Special SurgeryNew YorkUnited States
- Department of Medicine, Weill Cornell Medical CollegeNew YorkUnited States
| | - Ziyu Chen
- Arthritis and Tissue Degeneration Program and David Z. Rosensweig Genomics Research Center, Hospital for Special SurgeryNew YorkUnited States
| | - Yuhan Xia
- Arthritis and Tissue Degeneration Program and David Z. Rosensweig Genomics Research Center, Hospital for Special SurgeryNew YorkUnited States
| | - Xiaoyu Hu
- Institute for Immunology and School of Medicine, Tsinghua UniversityBeijingChina
| | - Matthew Greenblatt
- Pathology and Laboratory Medicine, Weill Cornell Medical CollegeNew YorkUnited States
- Research Division, Hospital for Special SurgeryNew YorkUnited States
| | - Alessandra Pernis
- Autoimmunity and Inflammation Program, Hospital for Special SurgeryNew YorkUnited States
- Graduate Program in Immunology and Microbial Pathogenesis, Weill Cornell Graduate School of Medical SciencesNew YorkUnited States
| | - Baohong Zhao
- Arthritis and Tissue Degeneration Program and David Z. Rosensweig Genomics Research Center, Hospital for Special SurgeryNew YorkUnited States
- Department of Medicine, Weill Cornell Medical CollegeNew YorkUnited States
- Graduate Program in Cell and Development Biology, Weill Cornell Graduate School of Medical SciencesNew YorkUnited States
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Inoue K, Nakano S, Zhao B. Osteoclastic microRNAs and their translational potential in skeletal diseases. Semin Immunopathol 2019; 41:573-582. [PMID: 31591677 DOI: 10.1007/s00281-019-00761-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 09/09/2019] [Indexed: 12/16/2022]
Abstract
Skeleton undergoes constant remodeling process to maintain healthy bone mass. However, in pathological conditions, bone remodeling is deregulated, resulting in unbalanced bone resorption and formation. Abnormal osteoclast formation and activation play a key role in osteolysis, such as in rheumatoid arthritis and osteoporosis. As potential therapeutic targets or biomarkers, miRNAs have gained rapidly growing research and clinical attention. miRNA-based therapeutics is recently entering a new era for disease treatment. Such progress is emerging in treatment of skeletal diseases. In this review, we discuss miRNA biogenesis, advances in the strategies for miRNA target identification, important miRNAs involved in osteoclastogenesis and disease models, their regulated mechanisms, and translational potential and challenges in bone homeostasis and related diseases.
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Affiliation(s)
- Kazuki Inoue
- Arthritis and Tissue Degeneration Program and The David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, USA.,Department of Medicine, Weill Cornell Medical College, New York, USA
| | - Shinichi Nakano
- Arthritis and Tissue Degeneration Program and The David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, USA
| | - Baohong Zhao
- Arthritis and Tissue Degeneration Program and The David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, USA. .,Department of Medicine, Weill Cornell Medical College, New York, USA. .,Graduate Program in Cell & Developmental Biology, Weill Cornell Graduate School of Medical Sciences,, New York, NY, USA.
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12
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Abstract
Chronic inflammation is one of the most evident and common pathological conditions leading to deregulated osteoclastogenesis and bone remodeling. Tumor necrosis factor (TNF) as a pleiotropic cytokine plays a key role, not only in inflammation, but also in bone erosion in diseases associated with bone loss. TNF can stimulate the proliferation of osteoclast precursors and, in most conditions, act together with other cytokines and growth factors such as receptor activator of nuclear factor (NF)-[kappa]B ligand (RANKL), interleukin-6, and transforming growth factor beta to synergistically promote osteoclast formation and bone resorption in vivo. A longstanding enigma in the field is why TNF alone is not able to induce osteoclast differentiation as effectively as the same superfamily member RANKL, a physiological master osteoclastogenic cytokine. Recent studies have highlighted several lines of evidence showing the intrinsic mechanisms through RBP-J, NF-[kappa]B p100/TNF receptor-associated factor 3, or interferon regulatory factor-8 that restrain TNF-induced osteoclast differentiation and bone resorption. These feedback inhibitory mechanisms driven by TNF shed light into the current paradigm of osteoclastogenesis and would provide novel therapeutic implications on controlling inflammatory bone resorption.
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Affiliation(s)
- Baohong Zhao
- Arthritis and Tissue Degeneration Program and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, Graduate Program in Biochemistry, Cell and Molecular Biology, Weill Cornell Graduate School of Medical Sciences, and Department of Medicine, Weill Cornell Medical College, 535 E. 70th Street New York, New York 10021
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13
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Zaiss MM, Hall C, McGowan NWA, Babb R, Devlia V, Lucas S, Meghji S, Henderson B, Bozec A, Schett G, David JP, Panayi GS, Grigoriadis AE, Corrigall VM. Binding Immunoglobulin Protein (BIP) Inhibits TNF-α-Induced Osteoclast Differentiation and Systemic Bone Loss in an Erosive Arthritis Model. ACR Open Rheumatol 2019; 1:382-393. [PMID: 31777818 PMCID: PMC6857990 DOI: 10.1002/acr2.11060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 06/11/2019] [Indexed: 12/15/2022] Open
Abstract
Objective The association between inflammation and dysregulated bone remodeling is apparent in rheumatoid arthritis and is recapitulated in the human tumor necrosis factor transgenic (hTNFtg) mouse model. We investigated whether extracellular binding immunoglobulin protein (BiP) would protect the hTNFtg mouse from both inflammatory arthritis as well as extensive systemic bone loss and whether BiP had direct antiosteoclast properties in vitro. Methods hTNFtg mice received a single intraperitoneal administration of BiP at onset of arthritis. Clinical disease parameters were measured weekly. Bone analysis was performed by microcomputed tomography and histomorphometry. Mouse bone marrow macrophage and human peripheral blood monocyte precursors were used to study the direct effect of BiP on osteoclast differentiation and function in vitro. Monocyte and osteoclast signaling was analyzed by Western blotting, flow cytometry, and imaging flow cytometry. Results BiP-treated mice showed reduced inflammation and cartilage destruction, and histomorphometric analysis revealed a decrease in osteoclast number with protection from systemic bone loss. Abrogation of osteoclast function was also observed in an ex vivo murine calvarial model. BiP inhibited differentiation of osteoclast precursors and prevented bone resorption by mature osteoclasts in vitro. BiP also induced downregulation of CD115/c-Fms and Receptor Activator of NF-κB (RANK) messenger RNA and protein, causing reduced phosphorylation of the p38 mitogen-activated protein kinases, extracellular signal-regulated kinases 1/2 and p38, with suppression of essential osteoclast transcription factors, c-Fos and NFATc1. BiP directly inhibited TNF-α- or Receptor Activator of NF-κB Ligand (RANKL)-induced NF-κB nuclear translocation in THP-1 monocytic cells and preosteoclasts by the canonical and noncanonical pathways. Conclusion BiP combines an anti-inflammatory function with antiosteoclast activity, which establishes it as a potential novel therapeutic for inflammatory disorders associated with bone loss.
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Affiliation(s)
- Mario M Zaiss
- Friedrich-Alexander University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen Erlangen Germany
| | | | | | | | | | - Sébastien Lucas
- Friedrich-Alexander University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen Erlangen Germany
| | - Sajeda Meghji
- UCL-Eastman Dental Institute University College London London UK
| | - Brian Henderson
- UCL-Eastman Dental Institute University College London London UK
| | - Aline Bozec
- Friedrich-Alexander University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen Erlangen Germany
| | - Georg Schett
- Friedrich-Alexander University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen Erlangen Germany
| | - Jean-Pierre David
- Friedrich-Alexander University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany, and Institute of Osteology and Biomechanics (IOBM) University Medical Center Hamburg-Eppendorf Hamburg Germany
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Nakano S, Inoue K, Xu C, Deng Z, Syrovatkina V, Vitone G, Zhao L, Huang XY, Zhao B. G-protein Gα 13 functions as a cytoskeletal and mitochondrial regulator to restrain osteoclast function. Sci Rep 2019; 9:4236. [PMID: 30862896 PMCID: PMC6414604 DOI: 10.1038/s41598-019-40974-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 02/19/2019] [Indexed: 12/13/2022] Open
Abstract
Excessive osteoclastic bone erosion disrupts normal bone remodeling and leads to bone loss in many skeletal diseases, including inflammatory arthritis, such as rheumatoid arthritis (RA) and psoriatic arthritis, periodontitis and peri-prosthetic loosening. Functional control of osteoclasts is critical for the maintenance of bone homeostasis. However, the mechanisms that restrain osteoclast resorptive function are not fully understood. In this study, we identify a previously unrecognized role for G-protein Gα13 in inhibition of osteoclast adhesion, fusion and bone resorptive function. Gα13 is highly expressed in mature multinucleated osteoclasts, but not during early differentiation. Deficiency of Gα13 in myeloid osteoclast lineage (Gα13ΔM/ΔM mice) leads to super spread morphology of multinucleated giant osteoclasts with elevated bone resorptive capacity, corroborated with an osteoporotic bone phenotype in the Gα13ΔM/ΔM mice. Mechanistically, Gα13 functions as a brake that restrains the c-Src, Pyk2, RhoA-Rock2 mediated signaling pathways and related gene expressions to control the ability of osteoclasts in fusion, adhesion, actin cytoskeletal remodeling and resorption. Genome wide analysis reveals cytoskeleton related genes that are suppressed by Gα13, identifying Gα13 as a critical cytoskeletal regulator in osteoclasts. We also identify a genome wide regulation of genes responsible for mitochondrial biogenesis and function by Gα13 in osteoclasts. Furthermore, the significant correlation between Gα13 expression levels, TNF activity and RA disease activity in RA patients suggests that the Gα13 mediated mechanisms represent attractive therapeutic targets for diseases associated with excessive bone resorption.
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Affiliation(s)
- Shinichi Nakano
- Arthritis and Tissue Degeneration Program and The David Z, Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA
| | - Kazuki Inoue
- Arthritis and Tissue Degeneration Program and The David Z, Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA
- Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Cheng Xu
- Arthritis and Tissue Degeneration Program and The David Z, Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA
| | - Zhonghao Deng
- Arthritis and Tissue Degeneration Program and The David Z, Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA
- Department of Orthopedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Viktoriya Syrovatkina
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, New York, USA
| | - Gregory Vitone
- Arthritis and Tissue Degeneration Program and The David Z, Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA
| | - Liang Zhao
- Department of Orthopedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xin-Yun Huang
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, New York, USA
| | - Baohong Zhao
- Arthritis and Tissue Degeneration Program and The David Z, Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA.
- Department of Medicine, Weill Cornell Medical College, New York, New York, USA.
- Graduate Program in Cell & Developmental Biology, Weill Cornell Graduate School of Medical Sciences, New York, New York, USA.
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15
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Sahin K, Perez Ojalvo S, Akdemir F, Orhan C, Tuzcu M, Sahin N, Ozercan IH, Sylla S, Koca SS, Yilmaz I, Komorowski JR. Effect of inositol -stabilized arginine silicate on arthritis in a rat model. Food Chem Toxicol 2019; 125:242-251. [PMID: 30634014 DOI: 10.1016/j.fct.2019.01.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 01/03/2019] [Accepted: 01/07/2019] [Indexed: 12/11/2022]
Abstract
The purpose of this study was to test the effects of arginine-silicate-inositol complex (ASI), compared to a combination of the individual ingredients (A+S+I) of the ASI, on inflammatory markers and joint health in a collagen-induced arthritis (CIA) rat model. A total of 28 Wistar rats were divided into four groups: (i) Control; (ii) Arthritic group, rats subjected to CIA induction by injection of bovine collagen type II (A); (iii) Arthritic group treated with equivalent doses of the separate components of the ASI complex (arginine hydrochloride, silicon, and inositol) (A+S+I); (iv) Arthritic group treated with the ASI complex. The ASI complex treatment showed improved inflammation scores and markers over the arthritic control and the A+S+I group. ASI group had also greater levels of serum and joint-tissue arginine and silicon than the A+S+I group. Joint tissue IL-6, NF-κB, COX-2, TNF-α, p38 MAPK, WISP-1, and β-Catenin levels were lower in the ASI group compared to the other groups (P < 0.05 for all). In conclusion, these results demonstrate that the ASI complex may be effective in reducing markers of inflammation associated with joint health and that the ASI complex is more effective than a combination of the individual ingredients.
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Affiliation(s)
- Kazim Sahin
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey.
| | - Sara Perez Ojalvo
- Scientific and Regulatory Affairs, Nutrition 21 LLC, Purchase, NY, USA
| | - Fatih Akdemir
- Department of Nutrition, Faculty of Fisheries, Inonu University, Malatya, Turkey
| | - Cemal Orhan
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - Mehmet Tuzcu
- Division of Biology, Faculty of Science, Firat University, Elazig, Turkey
| | - Nurhan Sahin
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - Ibrahim H Ozercan
- Department of Pathology, School of Medicine, Firat University, Elazig, Turkey
| | - Sarah Sylla
- Scientific and Regulatory Affairs, Nutrition 21 LLC, Purchase, NY, USA
| | - Suleyman S Koca
- Department of Rheumatology, School of Medicine, Firat University, Elazig, Turkey
| | - Ismet Yilmaz
- Department of Pharmacology, Faculty of Pharmacy, Inonu University, Malatya, Turkey
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16
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Wu J, Zhao FT, Fan KJ, Zhang J, Xu BX, Wang QS, Tang TT, Wang TY. Dihydromyricetin Inhibits Inflammation of Fibroblast-Like Synoviocytes through Regulation of Nuclear Factor- κB Signaling in Rats with Collagen-Induced Arthritis. J Pharmacol Exp Ther 2018; 368:218-228. [PMID: 30530730 DOI: 10.1124/jpet.118.253369] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 11/26/2018] [Indexed: 12/15/2022] Open
Abstract
Dihydromyricetin (DMY), the main flavonoid of Ampelopsis grossedentata, has potent anti-inflammatory activity. However, the effect of DMY on chronic autoimmune arthritis remains undefined. In this study, we investigated the therapeutic effects of DMY on collagen-induced arthritis (CIA). Wistar rats were immunized with bovine type II collagen to establish CIA and were then administered DMY intraperitoneally (5, 25, and 50 mg/kg) every other day for 5 weeks. Paw swelling, clinical scoring, and histologic analysis were assessed to determine the therapeutic effects of DMY on the development of arthritis in CIA rats. The results showed that treatment with DMY significantly reduced erythema and swelling in the paws of CIA rats. Pathologic analysis of the knee joints and peripheral blood cytokine assay results confirmed the antiarthritic effects of DMY on synovitis and inflammation. Fibroblast-like synoviocytes (FLSs) were isolated from the synovium of CIA rats and treated with 10 ng/ml interleukin (IL)-1β DMY significantly inhibited the proliferation, migration, and inflammation of IL-1β-induced FLSs, whereas it significantly increased IL-1β-induced FLS apoptosis in a dose-dependent manner (6.25-25 μM). Moreover, DMY suppressed phosphorylation of IκB kinase (IKK) and inhibitor of NF-κB α and subsequently reduced the IL-1β-induced nucleus translocation of NF-κB in FLSs. Through a molecular docking assay, we demonstrated that DMY could directly bind to the Thr9 and Asp88 residues in IKKα and the Asp95, Asn142, and Gln167 residues in IKKβ These findings demonstrate that DMY could alleviate inflammation in CIA rats and attenuate IL-1β-induced activities in FLSs through suppression of NF-κB signaling.
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Affiliation(s)
- Jing Wu
- Departments of Pharmacy (J.W., K.-J.F., B.-X.X., Q.-S.W., T.-Y.W.) and Rheumatology and Immunology (F.-T.Z.), and Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery (T.-T.T.), Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China; and Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (J.Z.)
| | - Fu-Tao Zhao
- Departments of Pharmacy (J.W., K.-J.F., B.-X.X., Q.-S.W., T.-Y.W.) and Rheumatology and Immunology (F.-T.Z.), and Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery (T.-T.T.), Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China; and Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (J.Z.)
| | - Kai-Jian Fan
- Departments of Pharmacy (J.W., K.-J.F., B.-X.X., Q.-S.W., T.-Y.W.) and Rheumatology and Immunology (F.-T.Z.), and Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery (T.-T.T.), Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China; and Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (J.Z.)
| | - Jun Zhang
- Departments of Pharmacy (J.W., K.-J.F., B.-X.X., Q.-S.W., T.-Y.W.) and Rheumatology and Immunology (F.-T.Z.), and Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery (T.-T.T.), Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China; and Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (J.Z.)
| | - Bing-Xing Xu
- Departments of Pharmacy (J.W., K.-J.F., B.-X.X., Q.-S.W., T.-Y.W.) and Rheumatology and Immunology (F.-T.Z.), and Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery (T.-T.T.), Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China; and Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (J.Z.)
| | - Qi-Shan Wang
- Departments of Pharmacy (J.W., K.-J.F., B.-X.X., Q.-S.W., T.-Y.W.) and Rheumatology and Immunology (F.-T.Z.), and Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery (T.-T.T.), Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China; and Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (J.Z.)
| | - Ting-Ting Tang
- Departments of Pharmacy (J.W., K.-J.F., B.-X.X., Q.-S.W., T.-Y.W.) and Rheumatology and Immunology (F.-T.Z.), and Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery (T.-T.T.), Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China; and Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (J.Z.)
| | - Ting-Yu Wang
- Departments of Pharmacy (J.W., K.-J.F., B.-X.X., Q.-S.W., T.-Y.W.) and Rheumatology and Immunology (F.-T.Z.), and Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery (T.-T.T.), Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China; and Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (J.Z.)
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17
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Oxidative Stress as Cause, Consequence, or Biomarker of Altered Female Reproduction and Development in the Space Environment. Int J Mol Sci 2018; 19:ijms19123729. [PMID: 30477143 PMCID: PMC6320872 DOI: 10.3390/ijms19123729] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 11/12/2018] [Accepted: 11/20/2018] [Indexed: 12/22/2022] Open
Abstract
Oxidative stress has been implicated in the pathophysiology of numerous terrestrial disease processes and associated with morbidity following spaceflight. Furthermore, oxidative stress has long been considered a causative agent in adverse reproductive outcomes. The purpose of this review is to summarize the pathogenesis of oxidative stress caused by cosmic radiation and microgravity, review the relationship between oxidative stress and reproductive outcomes in females, and explore what role spaceflight-induced oxidative damage may have on female reproductive and developmental outcomes.
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18
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Tahimic CGT, Globus RK. Redox Signaling and Its Impact on Skeletal and Vascular Responses to Spaceflight. Int J Mol Sci 2017; 18:ijms18102153. [PMID: 29035346 PMCID: PMC5666834 DOI: 10.3390/ijms18102153] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Revised: 09/30/2017] [Accepted: 10/10/2017] [Indexed: 12/16/2022] Open
Abstract
Spaceflight entails exposure to numerous environmental challenges with the potential to contribute to both musculoskeletal and vascular dysfunction. The purpose of this review is to describe current understanding of microgravity and radiation impacts on the mammalian skeleton and associated vasculature at the level of the whole organism. Recent experiments from spaceflight and ground-based models have provided fresh insights into how these environmental stresses influence mechanisms that are related to redox signaling, oxidative stress, and tissue dysfunction. Emerging mechanistic knowledge on cellular defenses to radiation and other environmental stressors, including microgravity, are useful for both screening and developing interventions against spaceflight-induced deficits in bone and vascular function.
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Affiliation(s)
- Candice G T Tahimic
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA 94035, USA.
- KBRWyle, Moffett Field, CA 94035, USA.
| | - Ruth K Globus
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA 94035, USA.
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19
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Sucur A, Jajic Z, Artukovic M, Matijasevic MI, Anic B, Flegar D, Markotic A, Kelava T, Ivcevic S, Kovacic N, Katavic V, Grcevic D. Chemokine signals are crucial for enhanced homing and differentiation of circulating osteoclast progenitor cells. Arthritis Res Ther 2017; 19:142. [PMID: 28619088 PMCID: PMC5472975 DOI: 10.1186/s13075-017-1337-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 05/16/2017] [Indexed: 02/08/2023] Open
Abstract
Background The peripheral blood (PB) monocyte pool contains osteoclast progenitors (OCPs), which contribute to osteoresorption in inflammatory arthritides and are influenced by the cytokine and chemokine milieu. We aimed to define the importance of chemokine signals for migration and activation of OCPs in rheumatoid arthritis (RA) and psoriatic arthritis (PsA). Methods PB and, when applicable, synovial fluid (SF) samples were collected from 129 patients with RA, 53 patients with PsA, and 110 control patients in parallel to clinical parameters of disease activity, autoantibody levels, and applied therapy. Receptors for osteoclastogenic factors (CD115 and receptor activator of nuclear factor-κB [RANK]) and selected chemokines (CC chemokine receptor 1 [CCR1], CCR2, CCR4, CXC chemokine receptor 3 [CXCR3], CXCR4) were determined in an OCP-rich subpopulation (CD3−CD19−CD56−CD11b+CD14+) by flow cytometry. In parallel, levels of CC chemokine ligand 2 (CCL2), CCL3, CCL4, CCL5, CXC chemokine ligand 9 (CXCL9), CXCL10, and CXCL12 were measured using cytometric bead array or enzyme-linked immunosorbent assay. Sorted OCPs were stimulated in culture by macrophage colony-stimulating factor and receptor activator of nuclear factor-κB ligand, and they were differentiated into mature osteoclasts that resorb bone. Selected chemokines (CCL2, CCL5, CXCL10, and CXCL12) were tested for their osteoclastogenic and chemotactic effects on circulatory OCPs in vitro. Results The OCP population was moderately enlarged among PB cells in RA and correlated with levels of tumor necrosis factor-α (TNF-α), rheumatoid factor, CCL2, and CCL5. Compared with PB, the RANK+ subpopulation was expanded in SF and correlated with the number of tender joints. Patients with PsA could be distinguished by increased RANK expression rather than total OCP population. OCPs from patients with arthritis had higher expression of CCR1, CCR2, CCR4, CXCR3, and CXCR4. In parallel, patients with RA had increased levels of CCL2, CCL3, CCL4, CCL5, CXCL9, and CXCL10, with significant elevation in SF vs PB for CXCL10. The subset expressing CXCR4 positively correlated with TNF-α, bone resorption marker, and rheumatoid factor, and it was reduced in patients treated with disease-modifying antirheumatic drugs. The CCR4+ subset showed a significant negative trend during anti-TNF treatment. CCL2, CCL5, and CXCL10 had similar osteoclastogenic effects, with CCL5 showing the greatest chemotactic action on OCPs. Conclusions In our study, we identified distinct effects of selected chemokines on stimulation of OCP mobilization, tissue homing, and maturation. Novel insights into migratory behaviors and functional properties of circulatory OCPs in response to chemotactic signals could open ways to new therapeutic targets in RA. Electronic supplementary material The online version of this article (doi:10.1186/s13075-017-1337-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Alan Sucur
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Salata 12, Zagreb, HR 10000, Croatia.,Department of Physiology and Immunology, University of Zagreb School of Medicine, Salata 3b, Zagreb, HR 10000, Croatia
| | - Zrinka Jajic
- Department of Rheumatology, Physical Medicine and Rehabilitation, Clinical Hospital Center "Sestre Milosrdnice", University of Zagreb School of Medicine, Vinogradska cesta 29, Zagreb, HR 10000, Croatia
| | - Marinko Artukovic
- Department of Clinical Immunology and Pulmonology, Clinical Hospital "Sveti Duh", Sveti Duh 64, Zagreb, HR 10000, Croatia
| | - Marina Ikic Matijasevic
- Department of Clinical Immunology and Pulmonology, Clinical Hospital "Sveti Duh", Sveti Duh 64, Zagreb, HR 10000, Croatia
| | - Branimir Anic
- Department of Clinical Immunology and Rheumatology, Clinical Hospital Center "Zagreb", Kispaticeva 12, Zagreb, HR 10000, Croatia
| | - Darja Flegar
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Salata 12, Zagreb, HR 10000, Croatia.,Department of Physiology and Immunology, University of Zagreb School of Medicine, Salata 3b, Zagreb, HR 10000, Croatia
| | - Antonio Markotic
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Salata 12, Zagreb, HR 10000, Croatia.,Department of Physiology and Immunology, University of Zagreb School of Medicine, Salata 3b, Zagreb, HR 10000, Croatia
| | - Tomislav Kelava
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Salata 12, Zagreb, HR 10000, Croatia.,Department of Physiology and Immunology, University of Zagreb School of Medicine, Salata 3b, Zagreb, HR 10000, Croatia
| | - Sanja Ivcevic
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Salata 12, Zagreb, HR 10000, Croatia.,Department of Physiology and Immunology, University of Zagreb School of Medicine, Salata 3b, Zagreb, HR 10000, Croatia
| | - Natasa Kovacic
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Salata 12, Zagreb, HR 10000, Croatia.,Department of Anatomy, University of Zagreb School of Medicine, Salata 11, Zagreb, HR 10000, Croatia
| | - Vedran Katavic
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Salata 12, Zagreb, HR 10000, Croatia.,Department of Anatomy, University of Zagreb School of Medicine, Salata 11, Zagreb, HR 10000, Croatia
| | - Danka Grcevic
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Salata 12, Zagreb, HR 10000, Croatia. .,Department of Physiology and Immunology, University of Zagreb School of Medicine, Salata 3b, Zagreb, HR 10000, Croatia.
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20
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Abstract
PURPOSE OF REVIEW The mechanisms involved in the TNF-mediated deregulated bone remodeling are little appreciated. This review will discuss and summarize the impact of TNF, Notch, and RBP-J signaling on bone remodeling. RECENT FINDINGS The integrity of the adult skeleton undergoes constant and dynamic remodeling throughout life to maintain a proper bone homeostasis, which is achieved by the essential tight control of coupling between osteoclast-mediated bone resorption and osteoblast-mediated bone formation. The studies in this field include not only the differentiation and function of osteoblasts and osteoclasts, but also the mechanisms that simultaneously control both cell types during bone remodeling. Chronic inflammation is one of the most evident and common pathological settings that often leads to deregulated bone remodeling. The resounding success of TNF blockade therapy has demonstrated a key role for TNF in inflammation and the pathogenesis of inflammatory bone resorption associated with diseases such as rheumatoid arthritis and periodontitis. Recent studies have highlighted the function of Notch and RBP-J signaling in both physiological and TNF-mediated inflammatory bone remodeling.
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Affiliation(s)
- Baohong Zhao
- Arthritis and Tissue Degeneration Program and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, USA.
- Graduate Program in Biochemistry, Cell and Molecular Biology, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA.
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA.
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21
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Binder N, Miller C, Yoshida M, Inoue K, Nakano S, Hu X, Ivashkiv LB, Schett G, Pernis A, Goldring SR, Ross FP, Zhao B. Def6 Restrains Osteoclastogenesis and Inflammatory Bone Resorption. THE JOURNAL OF IMMUNOLOGY 2017; 198:3436-3447. [PMID: 28314855 DOI: 10.4049/jimmunol.1601716] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 02/19/2017] [Indexed: 01/08/2023]
Abstract
Inflammatory bone resorption mediated by osteoclasts is a major cause of morbidity and disability in many inflammatory disorders, including rheumatoid arthritis (RA). The mechanisms that regulate osteoclastogenesis and bone resorption in inflammatory settings are complex and have not been well elucidated. In this study, we identify the immunoregulator differentially expressed in FDCP 6 homolog (Def6) as a novel inhibitor of osteoclastogenesis in physiological and inflammatory conditions. Def6 deficiency in Def6-/- mice enhanced the sensitivity of osteoclast precursors to the physiological osteoclastogenic inducer receptor activator for NF-κB ligand, and Def6-/- osteoclasts formed actin rings. Furthermore, Def6 deficiency markedly increased TNF-α-induced osteoclastogenesis in vitro and in vivo and enhanced bone resorption in an inflammatory osteolysis mouse model. TNF-α serum levels correlated negatively with Def6 expression levels in osteoclast precursors obtained from RA patients, and the osteoclastogenic capacity of the osteoclast precursors was significantly inversely correlated with their Def6 expression levels, indicating that Def6 functions as an inhibitor of excessive osteoclast formation and bone destruction in RA. Mechanistically, Def6 suppressed osteoclastogenesis and the expression of key osteoclastogenic factors NFATc1, B lymphocyte-induced maturation protein-1, and c-Fos by regulating an endogenous IFN-β-mediated autocrine feedback loop. The Def6-dependent pathway may represent a novel therapeutic target to prevent pathological bone destruction.
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Affiliation(s)
- Nikolaus Binder
- Arthritis and Tissue Degeneration Program and The David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021
| | - Christine Miller
- Arthritis and Tissue Degeneration Program and The David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021
| | - Masaki Yoshida
- Arthritis and Tissue Degeneration Program and The David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021
| | - Kazuki Inoue
- Arthritis and Tissue Degeneration Program and The David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021
| | - Shinichi Nakano
- Arthritis and Tissue Degeneration Program and The David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021
| | - Xiaoyu Hu
- Institute for Immunology, Tsinghua University, Beijing 100084, China.,School of Medicine, Tsinghua University, Beijing 100084, China
| | - Lionel B Ivashkiv
- Arthritis and Tissue Degeneration Program and The David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021.,Graduate Program in Immunology and Microbial Pathogenesis, Weill Cornell Graduate School of Medical Sciences, New York, NY 10021
| | - Georg Schett
- Department of Internal Medicine 3, University of Erlangen-Nuremberg, Erlangen 91054, Germany
| | - Alessandra Pernis
- Arthritis and Tissue Degeneration Program and The David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021.,Graduate Program in Immunology and Microbial Pathogenesis, Weill Cornell Graduate School of Medical Sciences, New York, NY 10021.,Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY 10021; and
| | - Steven R Goldring
- Arthritis and Tissue Degeneration Program and The David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021
| | - F Patrick Ross
- Arthritis and Tissue Degeneration Program and The David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021
| | - Baohong Zhao
- Arthritis and Tissue Degeneration Program and The David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021; .,Department of Medicine, Weill Cornell Medical College, New York, NY 10021
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22
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Grabowski B, Schmidt MA, Rüter C. Immunomodulatory Yersinia outer proteins (Yops)-useful tools for bacteria and humans alike. Virulence 2017; 8:1124-1147. [PMID: 28296562 DOI: 10.1080/21505594.2017.1303588] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Human-pathogenic Yersinia produce plasmid-encoded Yersinia outer proteins (Yops), which are necessary to down-regulate anti-bacterial responses that constrict bacterial survival in the host. These Yops are effectively translocated directly from the bacterial into the target cell cytosol by the type III secretion system (T3SS). Cell-penetrating peptides (CPPs) in contrast are characterized by their ability to autonomously cross cell membranes and to transport cargo - independent of additional translocation systems. The recent discovery of bacterial cell-penetrating effector proteins (CPEs) - with the prototype being the T3SS effector protein YopM - established a new class of autonomously translocating immunomodulatory proteins. CPEs represent a vast source of potential self-delivering, anti-inflammatory therapeutics. In this review, we give an update on the characteristic features of the plasmid-encoded Yops and, based on recent findings, propose the further development of these proteins for potential therapeutic applications as natural or artificial cell-penetrating forms of Yops might be of value as bacteria-derived biologics.
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Affiliation(s)
- Benjamin Grabowski
- a Institute of Infectiology - Centre for Molecular Biology of Inflammation (ZMBE), University of Münster , Münster , Germany
| | - M Alexander Schmidt
- a Institute of Infectiology - Centre for Molecular Biology of Inflammation (ZMBE), University of Münster , Münster , Germany
| | - Christian Rüter
- a Institute of Infectiology - Centre for Molecular Biology of Inflammation (ZMBE), University of Münster , Münster , Germany
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23
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Luo Y, Sinkeviciute D, He Y, Karsdal M, Henrotin Y, Mobasheri A, Önnerfjord P, Bay-Jensen A. The minor collagens in articular cartilage. Protein Cell 2017; 8:560-572. [PMID: 28213717 PMCID: PMC5546929 DOI: 10.1007/s13238-017-0377-7] [Citation(s) in RCA: 146] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 01/25/2017] [Indexed: 02/06/2023] Open
Abstract
Articular cartilage is a connective tissue consisting of a specialized extracellular matrix (ECM) that dominates the bulk of its wet and dry weight. Type II collagen and aggrecan are the main ECM proteins in cartilage. However, little attention has been paid to less abundant molecular components, especially minor collagens, including type IV, VI, IX, X, XI, XII, XIII, and XIV, etc. Although accounting for only a small fraction of the mature matrix, these minor collagens not only play essential structural roles in the mechanical properties, organization, and shape of articular cartilage, but also fulfil specific biological functions. Genetic studies of these minor collagens have revealed that they are associated with multiple connective tissue diseases, especially degenerative joint disease. The progressive destruction of cartilage involves the degradation of matrix constituents including these minor collagens. The generation and release of fragmented molecules could generate novel biochemical markers with the capacity to monitor disease progression, facilitate drug development and add to the existing toolbox for in vitro studies, preclinical research and clinical trials.
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Affiliation(s)
- Yunyun Luo
- Biomarkers & Research, Nordic Bioscience A/S, Herlev, Denmark. .,Faculty of Healthy and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Dovile Sinkeviciute
- Biomarkers & Research, Nordic Bioscience A/S, Herlev, Denmark.,Department of Clinical Sciences, Medical Faculty, Lund University, Lund, Sweden
| | - Yi He
- Biomarkers & Research, Nordic Bioscience A/S, Herlev, Denmark
| | - Morten Karsdal
- Biomarkers & Research, Nordic Bioscience A/S, Herlev, Denmark
| | - Yves Henrotin
- Bone and Cartilage Research Unit, Institute of Pathology, Level 5, Arthropole Liège, University of Liège, CHU Sart-Tilman, 4000, Liège, Belgium
| | - Ali Mobasheri
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, GU2 7XH, UK.,Arthritis Research UK Centre for Sport, Exercise and Osteoarthritis, Arthritis Research UK Centre for Musculoskeletal Ageing Research, Queen's Medical Centre, Nottingham, NG7 2UH, UK
| | - Patrik Önnerfjord
- Department of Clinical Sciences, Medical Faculty, Lund University, Lund, Sweden
| | - Anne Bay-Jensen
- Biomarkers & Research, Nordic Bioscience A/S, Herlev, Denmark
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24
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Junker S, Frommer KW, Krumbholz G, Tsiklauri L, Gerstberger R, Rehart S, Steinmeyer J, Rickert M, Wenisch S, Schett G, Müller-Ladner U, Neumann E. Expression of adipokines in osteoarthritis osteophytes and their effect on osteoblasts. Matrix Biol 2016; 62:75-91. [PMID: 27884778 DOI: 10.1016/j.matbio.2016.11.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 11/09/2016] [Accepted: 11/09/2016] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Osteophyte formation in osteoarthritis (OA) is mediated by increased osteoblast activity, which is -in turn- regulated by the Wnt signaling pathway. Obesity is regarded a risk factor in OA, yet little is known about the interaction between adipose tissue-derived factors, the adipokines, and bone formation, although adipokines are associated with the pathogenesis of OA. Therefore, the effect of adipokines on bone and cartilage forming cells and osteophyte development was analyzed. METHODS Human OA osteophytes were histologically characterized and adipokine expression was evaluated by immunohistochemistry. Osteoblasts and chondrocytes were isolated from OA tissue and stimulated with adiponectin, resistin, or visfatin. Cytokine and osteoblast/chondrocyte markers were quantified and activation of Wnt and p38 MAPK signaling was analyzed. RESULTS Adiponectin, resistin, and visfatin were expressed in OA osteophytes by various articular cell types. Stimulation of OA osteoblasts with adiponectin and of OA chondrocytes with visfatin led to an increased release of proinflammatory mediators but not to osteoblast differentiation or activation. Additionally, visfatin increased matrix degrading factors in chondrocytes. Wnt signaling was not altered by adipokines, but adiponectin induced p38 MAPK signaling in osteoblasts. CONCLUSION Adipokines are present in OA osteophytes, and adiponectin and visfatin increase the release of proinflammatory mediators by osteoblasts and chondrocytes. The effects of adiponectin were mediated by p38 MAPK but not Wnt signaling in osteoblasts. Therefore, the results support the idea that adipokines do not directly influence osteophyte development but the proinflammatory conditions in OA.
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Affiliation(s)
- Susann Junker
- Dept Internal Medicine and Rheumatology, Justus-Liebig-University Giessen, Kerckhoff-Klinik Bad Nauheim, Germany
| | - Klaus W Frommer
- Dept Internal Medicine and Rheumatology, Justus-Liebig-University Giessen, Kerckhoff-Klinik Bad Nauheim, Germany
| | - Grit Krumbholz
- Dept Internal Medicine and Rheumatology, Justus-Liebig-University Giessen, Kerckhoff-Klinik Bad Nauheim, Germany
| | - Lali Tsiklauri
- Dept Internal Medicine and Rheumatology, Justus-Liebig-University Giessen, Kerckhoff-Klinik Bad Nauheim, Germany
| | - Rüdiger Gerstberger
- Dept Veterinary Physiology and Biochemistry, Justus-Liebig-University Giessen, Germany
| | - Stefan Rehart
- Dept Orthopaedics and Trauma Surgery, Agaplesion-Markus-Hospital, Frankfurt, Germany
| | - Jürgen Steinmeyer
- Dept Orthopaedics and Orthopaedic Surgery, University Hospital Giessen and Marburg, Giessen, Germany
| | - Markus Rickert
- Dept Orthopaedics and Orthopaedic Surgery, University Hospital Giessen and Marburg, Giessen, Germany
| | - Sabine Wenisch
- Clinic for Small Animals, Institute for Veterinary Anatomy, Histology und Embryology, Justus-Liebig-University Giessen, Germany
| | - Georg Schett
- Medical Clinic 3, Rheumatology and Immunology, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany
| | - Ulf Müller-Ladner
- Dept Internal Medicine and Rheumatology, Justus-Liebig-University Giessen, Kerckhoff-Klinik Bad Nauheim, Germany
| | - Elena Neumann
- Dept Internal Medicine and Rheumatology, Justus-Liebig-University Giessen, Kerckhoff-Klinik Bad Nauheim, Germany.
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25
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Ikić Matijašević M, Flegar D, Kovačić N, Katavić V, Kelava T, Šućur A, Ivčević S, Cvija H, Lazić Mosler E, Kalajzić I, Marušić A, Grčević D. Increased chemotaxis and activity of circulatory myeloid progenitor cells may contribute to enhanced osteoclastogenesis and bone loss in the C57BL/6 mouse model of collagen-induced arthritis. Clin Exp Immunol 2016; 186:321-335. [PMID: 27612450 DOI: 10.1111/cei.12862] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2016] [Indexed: 01/01/2023] Open
Abstract
Our study aimed to determine the functional activity of different osteoclast progenitor (OCP) subpopulations and signals important for their migration to bone lesions, causing local and systemic bone resorption during the course of collagen-induced arthritis in C57BL/6 mice. Arthritis was induced with chicken type II collagen (CII), and assessed by clinical scoring and detection of anti-CII antibodies. We observed decreased trabecular bone volume of axial and appendicular skeleton by histomorphometry and micro-computed tomography as well as decreased bone formation and increased bone resorption rate in arthritic mice in vivo. In the affected joints, bone loss was accompanied with severe osteitis and bone marrow hypercellularity, coinciding with the areas of active osteoclasts and bone erosions. Flow cytometry analysis showed increased frequency of putative OCP cells (CD3- B220- NK1.1- CD11b-/lo CD117+ CD115+ for bone marrow and CD3- B220- NK1.1- CD11b+ CD115+ Gr-1+ for peripheral haematopoietic tissues), which exhibited enhanced differentiation potential in vitro. Moreover, the total CD11b+ population was expanded in arthritic mice as well as CD11b+ F4/80+ macrophage, CD11b+ NK1.1+ natural killer cell and CD11b+ CD11c+ myeloid dendritic cell populations in both bone marrow and peripheral blood. In addition, arthritic mice had increased expression of tumour necrosis factor-α, interleukin-6, CC chemokine ligand-2 (Ccl2) and Ccl5, with increased migration and differentiation of circulatory OCPs in response to CCL2 and, particularly, CCL5 signals. Our study characterized the frequency and functional properties of OCPs under inflammatory conditions associated with arthritis, which may help to clarify crucial molecular signals provided by immune cells to mediate systemically enhanced osteoresorption.
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Affiliation(s)
- M Ikić Matijašević
- Department of Physiology and Immunology, University of Zagreb School of Medicine, Zagreb, Croatia.,Laboratory for Molecular Immunology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - D Flegar
- Department of Physiology and Immunology, University of Zagreb School of Medicine, Zagreb, Croatia.,Laboratory for Molecular Immunology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - N Kovačić
- Laboratory for Molecular Immunology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia.,Department of Anatomy, University of Zagreb School of Medicine, Zagreb, Croatia
| | - V Katavić
- Laboratory for Molecular Immunology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia.,Department of Anatomy, University of Zagreb School of Medicine, Zagreb, Croatia
| | - T Kelava
- Department of Physiology and Immunology, University of Zagreb School of Medicine, Zagreb, Croatia.,Laboratory for Molecular Immunology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - A Šućur
- Department of Physiology and Immunology, University of Zagreb School of Medicine, Zagreb, Croatia.,Laboratory for Molecular Immunology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - S Ivčević
- Department of Physiology and Immunology, University of Zagreb School of Medicine, Zagreb, Croatia.,Laboratory for Molecular Immunology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - H Cvija
- Department of Physiology and Immunology, University of Zagreb School of Medicine, Zagreb, Croatia.,Laboratory for Molecular Immunology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - E Lazić Mosler
- Laboratory for Molecular Immunology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia.,Department of Anatomy, University of Zagreb School of Medicine, Zagreb, Croatia
| | - I Kalajzić
- Department of Reconstructive Sciences, University of Connecticut Health Center, Farmington, CT, USA
| | - A Marušić
- Department of Research in Biomedicine and Health, University of Split School of Medicine, Split, Croatia
| | - D Grčević
- Department of Physiology and Immunology, University of Zagreb School of Medicine, Zagreb, Croatia.,Laboratory for Molecular Immunology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
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26
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Schreurs AS, Shirazi-Fard Y, Shahnazari M, Alwood JS, Truong TA, Tahimic CGT, Limoli CL, Turner ND, Halloran B, Globus RK. Dried plum diet protects from bone loss caused by ionizing radiation. Sci Rep 2016; 6:21343. [PMID: 26867002 PMCID: PMC4750446 DOI: 10.1038/srep21343] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 01/21/2016] [Indexed: 12/21/2022] Open
Abstract
Bone loss caused by ionizing radiation is a potential health concern for radiotherapy patients, radiation workers and astronauts. In animal studies, exposure to ionizing radiation increases oxidative damage in skeletal tissues, and results in an imbalance in bone remodeling initiated by increased bone-resorbing osteoclasts. Therefore, we evaluated various candidate interventions with antioxidant or anti-inflammatory activities (antioxidant cocktail, dihydrolipoic acid, ibuprofen, dried plum) both for their ability to blunt the expression of resorption-related genes in marrow cells after irradiation with either gamma rays (photons, 2 Gy) or simulated space radiation (protons and heavy ions, 1 Gy) and to prevent bone loss. Dried plum was most effective in reducing the expression of genes related to bone resorption (Nfe2l2, Rankl, Mcp1, Opg, TNF-α) and also preventing later cancellous bone decrements caused by irradiation with either photons or heavy ions. Thus, dietary supplementation with DP may prevent the skeletal effects of radiation exposures either in space or on Earth.
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Affiliation(s)
- A-S Schreurs
- Bone and Signaling Laboratory, Space Biosciences Division, NASA Ames Research Center
| | - Y Shirazi-Fard
- Bone and Signaling Laboratory, Space Biosciences Division, NASA Ames Research Center
| | - M Shahnazari
- Bone and Signaling Laboratory, Space Biosciences Division, NASA Ames Research Center
| | - J S Alwood
- Bone and Signaling Laboratory, Space Biosciences Division, NASA Ames Research Center
| | - T A Truong
- Bone and Signaling Laboratory, Space Biosciences Division, NASA Ames Research Center
| | - C G T Tahimic
- Bone and Signaling Laboratory, Space Biosciences Division, NASA Ames Research Center
| | - C L Limoli
- Department of Radiation Oncology, University of California Irvine
| | - N D Turner
- Department of Nutrition and Food Science, Texas A&M University
| | - B Halloran
- Department of Medicine, Division of Endocrinology, University of California San Francisco
| | - R K Globus
- Bone and Signaling Laboratory, Space Biosciences Division, NASA Ames Research Center
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27
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Nakajima A, Aoki Y, Sonobe M, Takahashi H, Saito M, Terayama K, Nakagawa K. Radiographic progression of large joint damage in patients with rheumatoid arthritis treated with biological disease-modifying anti-rheumatic drugs. Mod Rheumatol 2015; 26:517-21. [PMID: 26473376 DOI: 10.3109/14397595.2015.1109785] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVES Radiographic progression of damage to the small joints in patients with rheumatoid arthritis (RA) is well known; however, it has not been studied fully in the large joints. In this study, we looked at the prevalence of radiographic progression of large joint damage in patients with RA treated with biological disease-modifying anti-rheumatic drugs (bDMARDs). METHODS A total of 273 large joints in the upper and lower extremities of 67 patients with RA treated with bDMARDs were investigated. Radiographs for tender and/or swollen large joints were taken at least twice during the study period (mean 18.6 months), and the progression of damage was evaluated. RESULTS Progressive damage was found in 20.9% of patients and 6.2% of joints. A multivariate analysis revealed that the Larsen grade (LG) alone was a risk factor for progressive damage. The LG cutoff value was determined to be 2.5 (sensitivity: 0.529, specificity: 0.805). CONCLUSIONS The only factor to predict progressive damage was the LG of the joints with symptoms, and the damage must be stopped within LG II. Regular radiographic examinations for large joints should be performed in addition to routine examinations for small joints, such as the hand and foot.
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Affiliation(s)
- Arata Nakajima
- a Department of Orthopedics and.,b Department of Rheumatology , Toho University Sakura Medical Center , Sakura-shi, Chiba , Japan
| | - Yasuchika Aoki
- c Department of General Medical Sciences , Graduate School of Medicine, Chiba University , Chuo-ku, Chiba-shi, Chiba , Japan .,d Department of Orthopedic Surgery , Eastern Chiba Medical Center , Togane-shi, Chiba , Japan , and
| | | | | | | | - Keiichiro Terayama
- e Department of Rehabilitation , Toho University Sakura Medical Center , Sakura-shi, Chiba , Japan
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28
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Espirito Santo AI, Ersek A, Freidin A, Feldmann M, Stoop AA, Horwood NJ. Selective inhibition of TNFR1 reduces osteoclast numbers and is differentiated from anti-TNF in a LPS-driven model of inflammatory bone loss. Biochem Biophys Res Commun 2015; 464:1145-1150. [PMID: 26208457 DOI: 10.1016/j.bbrc.2015.07.094] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 07/20/2015] [Indexed: 12/28/2022]
Abstract
The treatment of autoimmune disorders has been revolutionised by the introduction of biologics such as anti-tumour necrosis factor (anti-TNF). Although in rheumatoid arthritis patients a bone sparing effect of anti-TNF has been shown, the mechanism is not fully understood. Anti-TNF molecules block tumour necrosis factor (TNF) and prevent signalling via both TNF receptor 1 (TNFR1; p55) and TNF receptor 2 (TNFR2; p75). However, signalling via TNFR2 is reported to have protective effects in a number of cell and organ systems. Hence we set out to investigate if pharmacological inhibition of TNFR1 had differential effects compared to pan-TNF inhibition in both an in vitro cell-based model of human osteoclast activity and an in vivo mouse model of lipopolysaccharide (LPS)-induced osteolysis. For the in vitro experiments the anti-human TNFR1 domain antibody (dAb) DMS5541 was used, whereas for the in vivo mouse experiments the anti-mouse TNFR1 dAb DMS5540 was used. We show that selective blocking of TNFR1 signalling reduced osteoclast formation in the presence of TNF. Subcutaneous LPS injection over the calvaria leads to the development of osteolytic lesions within days due to inflammation driven osteoclast formation. In this model, murine TNFR2 genetically fused with mouse IgG1 Fc domain (mTNFR2.Fc), an anti-TNF, did not protect from bone loss in contrast to anti-TNFR1, which significantly reduced lesion development, inflammatory infiltrate, and osteoclast number and size. These results support further exploring the use of TNFR1-selective inhibition in inflammatory bone loss disorders such as osteomyelitis and peri-prosthetic aseptic loosening.
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Affiliation(s)
- A I Espirito Santo
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Headington, Oxford, OX3 7FY, United Kingdom
| | - A Ersek
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Headington, Oxford, OX3 7FY, United Kingdom
| | - A Freidin
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Headington, Oxford, OX3 7FY, United Kingdom
| | - M Feldmann
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Headington, Oxford, OX3 7FY, United Kingdom
| | - A A Stoop
- GlaxoSmithKline, Biopharm R&D, Stevenage, UK
| | - N J Horwood
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Headington, Oxford, OX3 7FY, United Kingdom.
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29
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Favero M, Giusti A, Geusens P, Goldring SR, Lems W, Schett G, Bianchi G. OsteoRheumatology: a new discipline? RMD Open 2015; 1:e000083. [PMID: 26557384 PMCID: PMC4632147 DOI: 10.1136/rmdopen-2015-000083] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 04/28/2015] [Accepted: 05/01/2015] [Indexed: 12/20/2022] Open
Abstract
This review summarises recent evidence about the interaction between bone, the immune system and cartilage in disabling conditions such as osteoarthritis, rheumatoid arthritis and spondyloarthritis. These topics have been recently discussed at the ‘OsteoRheumatology’ conference held in Genoa in October 2014. The meeting, at its 10th edition, has been conceived to bring together distinguished international experts in the fields of rheumatic and metabolic bone diseases with the aim of discussing emerging knowledge regarding the role of the bone tissue in rheumatic diseases. Moreover, this review focuses on new treatments based on underlying the pathophysiological processes in rheumatic diseases. Although, a number of issues still remain to be clarified, it seems quite clear that in clinical practice, as well as in basic and translational research, there is a need for more knowledge of the interactions between the cartilage, the immune system and the bone. In this context, ‘OsteoRheumatology’ represents a potential new discipline providing a greater insight into this interplay, in order to face the multifactorial and complex issues underlying common and disabling rheumatic diseases.
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Affiliation(s)
- Marta Favero
- Rheumatology Unit, Department of Medicine-DIMED , University Hospital of Padova , Padova , Italy ; Laboratory of Immunorheumatology and Tissue Regeneration/RAMSES , Rizzoli Orthopedic Research Institute , Bologna , Italy
| | - Andrea Giusti
- Bone Clinic, Department of Gerontology and Musculoskeletal Sciences , Galliera Hospital , Genoa , Italy
| | - Piet Geusens
- Department of Internal Medicine, Subdivision of Rheumatology , CAPHRI/NUTRIM, Maastricht University Medical Centre , Maastricht , The Netherlands & UHasselt, Belgium
| | - Steven R Goldring
- Hospital for Special Surgery and Weill Cornell Medical College , New York, New York , USA
| | - Willem Lems
- Department of Rheumatology , VU Medical Centre , Amsterdam , The Netherlands
| | - Georg Schett
- Department of Internal Medicine 3 , University of Erlangen-Nuremberg , Erlangen , Germany
| | - Gerolamo Bianchi
- Department of Locomotor System, Division of Rheumatology , ASL3 Genovese , Genoa , Italy
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30
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Osteoimmunology: Major and Costimulatory Pathway Expression Associated with Chronic Inflammatory Induced Bone Loss. J Immunol Res 2015; 2015:281287. [PMID: 26064999 PMCID: PMC4433696 DOI: 10.1155/2015/281287] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 12/10/2014] [Indexed: 12/28/2022] Open
Abstract
The field of osteoimmunology has emerged in response to the range of evidences demonstrating the close interrelationship between the immune system and bone metabolism. This is pertinent to immune-mediated diseases, such as rheumatoid arthritis and periodontal disease, where there are chronic inflammation and local bone erosion. Periprosthetic osteolysis is another example of chronic inflammation with associated osteolysis. This may also involve immune mediation when occurring in a patient with rheumatoid arthritis (RA). Similarities in the regulation and mechanisms of bone loss are likely to be related to the inflammatory cytokines expressed in these diseases. This review highlights the role of immune-related factors influencing bone loss particularly in diseases of chronic inflammation where there is associated localized bone loss. The importance of the balance of the RANKL-RANK-OPG axis is discussed as well as the more recently appreciated role that receptors and adaptor proteins involved in the immunoreceptor tyrosine-based activation motif (ITAM) signaling pathway play. Although animal models are briefly discussed, the focus of this review is on the expression of ITAM associated molecules in relation to inflammation induced localized bone loss in RA, chronic periodontitis, and periprosthetic osteolysis, with an emphasis on the soluble and membrane bound factor osteoclast-associated receptor (OSCAR).
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31
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Świerkot J, Gruszecka K, Matuszewska A, Wiland P. Assessment of the Effect of Methotrexate Therapy on Bone Metabolism in Patients with Rheumatoid Arthritis. Arch Immunol Ther Exp (Warsz) 2015; 63:397-404. [PMID: 25837853 PMCID: PMC4572055 DOI: 10.1007/s00005-015-0338-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 02/02/2015] [Indexed: 12/30/2022]
Abstract
Proinflammatory cytokines and growth factors, which regulate mutual interactions between immune system cells and bone tissue cells, play a major role in the formation of bone changes in rheumatoid arthritis (RA). The aim of the work was to assess serum concentration of osteoprotegerin (OPG), RANKL, Dkk-1 and sclerostin in RA patients compared to a control group and to analyze changes of these concentrations during methotrexate (MTX) therapy. Patients enrolled in the study were 30 women of Caucasian origin aged 30-74 years with RA. Patients with active form of the disease were administered recommended doses of MTX for at least 6 months. The study group was divided into subgroup I-patients with improvement; and subgroup II-patients with no improvement. The control group consisted of 12 healthy women in the age of 41-73. Before MTX therapy, RA patients had higher levels of RANKL (644.97 ± 477.13 vs. 255.19 ± 130.26 pmol/l), lower values of OPG/RANKL (0.01 ± 0.0101 vs. 0.02 ± 0.0078) and higher levels of Dkk-1 protein (1821.32 ± 1060.28 vs. 548.52 ± 36.35 pg/ml) compared to the control group. In the analyzed group of patients (all patients receiving MTX regardless of responder non responder status) after 6 months of therapy, a statistically significant increase in the ratio of OPG/RANKL was found (0.0118 ± 0.0102 vs. 0.0141 ± 0.0118; p = 0.02). The index value of OPG/RANKL differed significantly depending on the resultant effect of treatment (0.01702 ± 0.01274 in the subgroup of improvement vs. 0.00675 ± 0.00289 in the subgroup without improvement). The difference in the mean concentrations of Dkk-1 before and after treatment with MTX between subgroups I and II was statistically significant (p = 0.002). In subgroup I, mean concentration of Dkk-1 decreased after 6 months of treatment with MTX (2054.72 ± 1004.74 vs. 1831.70 ± 851.70 pg/ml); while in subgroup II, the mean concentration of Dkk-1 increased (1214.48 ± 738.32 vs. 2275.01 ± 1385.23 pg/ml). There were no statistically significant changes in the mean concentrations of sclerostin before and after treatment with MTX (in whole group treatment with MTX, in subgroup I, and in subgroup II). The results confirm the presence of disorders of bone metabolism in patients with RA. Treatment with MTX affects the value of the ratio of OPG/RANKL and concentration of Dkk-1.
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Affiliation(s)
- Jerzy Świerkot
- Department of Rheumatology and Internal Medicine, Wroclaw Medical University, Wrocław, Poland.
| | - Katarzyna Gruszecka
- Department of Rheumatology and Internal Medicine, Wroclaw Medical University, Wrocław, Poland
| | | | - Piotr Wiland
- Department of Rheumatology and Internal Medicine, Wroclaw Medical University, Wrocław, Poland
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32
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Queiroz-Junior CM, Silveira KD, de Oliveira CR, Moura AP, Madeira MFM, Soriani FM, Ferreira AJ, Fukada SY, Teixeira MM, Souza DG, da Silva TA. Protective effects of the angiotensin type 1 receptor antagonist losartan in infection-induced and arthritis-associated alveolar bone loss. J Periodontal Res 2015; 50:814-23. [PMID: 25753377 DOI: 10.1111/jre.12269] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/29/2015] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND OBJECTIVE The angiotensin type 1 (AT1) receptor has been implicated in the pathogenesis of inflammatory bone disorders. This study aimed to investigate the effect of an AT1 receptor antagonist in infection-induced and arthritis-associated alveolar bone loss in mice. MATERIAL AND METHODS Mice were subjected to Aggregatibacter actinomycetemcomitans oral infection or antigen-induced arthritis and treated daily with 10 mg/kg of the prototype AT1 antagonist, losartan. Treatment was conducted for 30 d in the infectious condition and for 17 d and 11 d in the preventive or therapeutic regimens in the arthritic model, respectively. The mice were then killed, and the maxillae, serum and knee joints were collected for histomorphometric and immunoenzymatic assays. In vitro osteoclast assays were performed using RAW 264.7 cells stimulated with A. actinomycetemcomitans lipopolysacharide (LPS). RESULTS Arthritis and A. actinomycetemcomitans infection triggered significant alveolar bone loss in mice and increased the levels of myeloperoxidase and of TRAP(+) osteoclasts in periodontal tissues. Losartan abolished such a phenotype, as well as the arthritis joint inflammation. Both arthritis and A. actinomycetemcomitans conditions were associated with the release of tumor necrosis factor alpha (TNF-α), interferon-gamma, interleukin-17 and chemokine (C-X-C motif) ligand 1 and an increased RANKL/osteoprotegerin ratio in periodontal tissues, but such expression decreased after losartan treatment, except for TNF-α. The therapeutic approach was as beneficial as the preventive one. In vitro, losartan prevented LPS-induced osteoclast differentiation and activity. CONCLUSION The blockade of AT1 receptor exerts anti-inflammatory and anti-osteoclastic effects, thus protecting periodontal tissues in distinct pathophysiological conditions of alveolar bone loss.
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Affiliation(s)
- C M Queiroz-Junior
- Department of Oral Surgery and Pathology, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Minas Gerais, Brazil.,Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - K D Silveira
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - C R de Oliveira
- Department of Oral Surgery and Pathology, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Minas Gerais, Brazil.,Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - A P Moura
- Department of Oral Surgery and Pathology, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - M F M Madeira
- Department of Oral Surgery and Pathology, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Minas Gerais, Brazil.,Department of Microbiology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - F M Soriani
- Department of General Biology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - A J Ferreira
- Department of Morphology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - S Y Fukada
- Department of Physics and Chemistry*, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - M M Teixeira
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - D G Souza
- Department of Microbiology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - T A da Silva
- Department of Oral Surgery and Pathology, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
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Derer A, Böhm C, Grötsch B, Grün JR, Grützkau A, Stock M, Böhm S, Sehnert B, Gaipl U, Schett G, Hueber AJ, David JP. Rsk2 controls synovial fibroblast hyperplasia and the course of arthritis. Ann Rheum Dis 2014; 75:413-21. [DOI: 10.1136/annrheumdis-2014-205618] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Accepted: 11/01/2014] [Indexed: 11/03/2022]
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Šućur A, Katavić V, Kelava T, Jajić Z, Kovačić N, Grčević D. Induction of osteoclast progenitors in inflammatory conditions: key to bone destruction in arthritis. INTERNATIONAL ORTHOPAEDICS 2014; 38:1893-903. [DOI: 10.1007/s00264-014-2386-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 05/13/2014] [Indexed: 12/14/2022]
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Kuchuk NO, Hoes JN, Bijlsma JWJ, Jacobs JWG. Glucocorticoid-induced osteoporosis: an overview. ACTA ACUST UNITED AC 2014. [DOI: 10.2217/ijr.14.24] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Rose S, Waters EA, Haney CR, Meade CTJ, Perlman H. High-resolution magnetic resonance imaging of ankle joints in murine arthritis discriminates inflammation and bone destruction in a quantifiable manner. ACTA ACUST UNITED AC 2013; 65:2279-89. [PMID: 23740612 DOI: 10.1002/art.38030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Accepted: 05/16/2013] [Indexed: 01/03/2023]
Abstract
OBJECTIVE The ability to noninvasively monitor the development of inflammatory arthritis longitudinally has become increasingly important in experimental rheumatology. Magnetic resonance imaging (MRI) allows for detailed examination of anatomic structures, as well as the assessment of joint and soft tissue inflammation. The aim of this study was to extend the use of MRI to include quantitative measurements of bone destruction in murine ankle joints. METHODS Joint disease was measured serially using clinical, histologic, in vivo imaging system (IVIS), micro-computed tomography (micro-CT), and MRI techniques in mouse ankle joints, using the K/BxN serum transfer-induced acute arthritis and K/BxA(g7) chronic arthritis models. Ankle joint MRI was performed using a gradient-echo pulse sequence to evaluate bone destruction and a spin-echo sequence to evaluate inflammation (long T2 signal). RESULTS Arthritic mice, as compared to control mice, demonstrated increased disease severity according to clinical, histologic, IVIS, and MRI measures. Following induction of arthritis, the majority of volume expansion of the long T2 signal occurred in a juxtaarticular, rather than intrarticular, manner within the ankle joints. Bone destruction in K/BxA(g7) mouse ankle joints was readily detectible by MRI. Linear regression analyses demonstrated significant correlations between the clinical score and joint radiance intensity assessed by IVIS, between the ankle joint width and increased long T2 signal on MRI, and between the bone volume obtained by micro-CT and bone volume obtained by MRI. CONCLUSION MRI is an optimal technology for anatomic localization of articular and soft tissue changes during the development and progression of inflammatory arthritis. Future studies may combine MRI with in vivo labeling agents to investigate joint disease in a cell type-specific manner.
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Affiliation(s)
- Shawn Rose
- Northwestern University Feinberg School of Medicine, Chicago, Illinois
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Yang S, Hollister AM, Orchard EA, Chaudhery SI, Ostanin DV, Lokitz SJ, Mathis JM. Quantification of bone changes in a collagen-induced arthritis mouse model by reconstructed three dimensional micro-CT. Biol Proced Online 2013; 15:8. [PMID: 23855709 PMCID: PMC3723793 DOI: 10.1186/1480-9222-15-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Accepted: 06/29/2013] [Indexed: 11/17/2022] Open
Abstract
Background Inflammatory arthritis is a chronic disease, resulting in synovitis and subchondral and bone area destruction, which can severely affect a patient’s quality of life. The most common form of inflammatory arthritis is rheumatoid arthritis (RA) in which many of the disease mechanisms are not well understood. The collagen-induced arthritis (CIA) mouse model is similar to RA as it exhibits joint space narrowing and bone erosion as well as involves inflammatory factors and cellular players that have been implicated in RA pathogenesis. Quantitative data for disease progression in RA models is difficult to obtain as serum blood markers may not always reflect disease state and physical disease indexes are subjective. Thus, it is important to develop tools to objectively assess disease progression in CIA. Results Micro-CT (Computed Tomography) is a relatively mature technology that has been used to track a variety of anatomical changes in small animals. In this study, micro-CT scans of several joints of control and CIA mice were acquired at 0, 4, 7, and 9 weeks after the immunization with collagen type II. Each micro-CT scan was analyzed by applying a segmentation algorithm to individual slices in each image set to provide 3-dimensional representations of specific bones including the humerus, femur, and tibia. From these representations, the volume and mean density of these bones were measured and compared. This analysis showed that both the volume and the density of each measured bone of the CIA mice were significantly smaller than those of the controls at week 7. Conclusions This study demonstrates that micro-CT can be used to quantify bone changes in the CIA mouse model as an alternative to disease index assessments. In conclusion, micro-CT could be useful as a non-invasive method to monitor the efficacy of new treatments for RA tested in small animals.
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Affiliation(s)
- Shu Yang
- Department of Cellular Biology and Anatomy, Louisiana State University Health Sciences Center, 1501 Kings Hwy, Shreveport, LA 71130, USA
| | - Anne M Hollister
- Department of Orthopedics, Louisiana State University Health Sciences Center, 1501 Kings Hwy, Shreveport, LA 71130, USA
| | - Elysse A Orchard
- Department of Animal Resources, Louisiana State University Health Sciences Center, Shreveport, LA 71130, USA ; Department of Pharmacology, Toxicology, and Neurosciences, Louisiana State University Health Sciences Center, Shreveport, LA 71130, USA
| | - Shubnum I Chaudhery
- Department of Pathology, Louisiana State University Health Sciences Center, Shreveport, LA 71130, USA
| | - Dmitry V Ostanin
- Department of Medicine, Louisiana State University Health Sciences Center, Shreveport, LA 71130, USA
| | - Stephen J Lokitz
- Department of Radiology, Louisiana State University Health Sciences Center, Shreveport, LA 71130, USA ; PET Imaging Center, Biomedical Research Foundation of Northwest Louisiana, Shreveport, LA 71130, USA
| | - J Michael Mathis
- Department of Cellular Biology and Anatomy, Louisiana State University Health Sciences Center, 1501 Kings Hwy, Shreveport, LA 71130, USA
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