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Mdingi VS, Gens L, Mys K, Varga P, Zeiter S, Marais LC, Richards RG, Moriarty FT, Chittò M. Short-Term Celecoxib Promotes Bone Formation without Compromising Cefazolin Efficacy in an Early Orthopaedic Device-Related Infection: Evidence from a Rat Model. Antibiotics (Basel) 2024; 13:715. [PMID: 39200015 PMCID: PMC11350844 DOI: 10.3390/antibiotics13080715] [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: 07/01/2024] [Revised: 07/26/2024] [Accepted: 07/26/2024] [Indexed: 09/01/2024] Open
Abstract
Non-steroidal anti-inflammatory drugs (NSAIDs) are crucial components of multimodal analgesia for musculoskeletal injuries, targeting cyclooxygenase (COX) enzymes (COX-1 and/or COX-2 isoenzymes). Concerns exist regarding their potential interference with bone healing and orthopaedic device-related infections (ODRI), where data are limited. This study aimed to investigate whether the COX-selectivity of NSAIDs interfered with antibiotic efficacy and bone changes in the setting of an ODRI. In vitro testing demonstrated that combining celecoxib (a COX-2 inhibitor) with cefazolin significantly enhanced antibacterial efficacy compared to cefazolin alone (p < 0.0001). In vivo experiments were performed using Staphylococcus epidermidis in the rat proximal tibia of an ODRI model. Long and short durations of celecoxib treatment in combination with antibiotics were compared to a control group receiving an antibiotic only. The long celecoxib treatment group showed impaired infection clearance, while the short celecoxib treatment showed increased bone formation (day 6, p < 0.0001), lower bone resorption (day 6, p < 0.0001), and lower osteolysis (day 6, BV/TV: p < 0.0001; BIC: p = 0.0005) compared to the control group, without impairing antibiotic efficacy (p > 0.9999). Given the use of NSAIDs as part of multimodal analgesia, and considering these findings, short-term use of COX-2 selective NSAIDs like celecoxib not only aids pain management but also promotes favorable bone changes during ODRI.
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Affiliation(s)
- Vuyisa Siphelele Mdingi
- AO Research Institute Davos, 7270 Davos, Switzerland; (V.S.M.)
- Department of Orthopaedic Surgery, School of Clinical Medicine, University of KwaZulu Natal, Durban 4041, South Africa
| | - Lena Gens
- AO Research Institute Davos, 7270 Davos, Switzerland; (V.S.M.)
| | - Karen Mys
- AO Research Institute Davos, 7270 Davos, Switzerland; (V.S.M.)
| | - Peter Varga
- AO Research Institute Davos, 7270 Davos, Switzerland; (V.S.M.)
| | - Stephan Zeiter
- AO Research Institute Davos, 7270 Davos, Switzerland; (V.S.M.)
| | - Leonard Charles Marais
- Department of Orthopaedic Surgery, School of Clinical Medicine, University of KwaZulu Natal, Durban 4041, South Africa
| | | | | | - Marco Chittò
- AO Research Institute Davos, 7270 Davos, Switzerland; (V.S.M.)
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Xu L, Hu YJ, Peng Y, Wang Z, Wang J, Lu WW, Tang B, Guo XE. Early zoledronate treatment inhibits subchondral bone microstructural changes in skeletally-mature, ACL-transected canine knees. Bone 2023; 167:116638. [PMID: 36464243 DOI: 10.1016/j.bone.2022.116638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 11/27/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022]
Abstract
Anterior cruciate ligament (ACL) tear leads to post-traumatic osteoarthritis (PTOA), a significant clinical burden worldwide that currently has no cure. Recent studies suggest a role of subchondral bone adaptations in the development of PTOA. Particularly, microstructural changes in the rod-and-plate microstructure of subchondral bone may precede and contribute to OA progression. In this study, we quantified microstructural changes in subchondral trabecular rods and plates after ACL-transection for the first time in the well-established preclinical canine model of PTOA and investigated the therapeutic potentials of a bisphosphonate (zoledronate) and NSAID treatment (meloxicam). Unilateral hindlimb ACL transection was performed on skeletally-mature (2-year-old, N = 20) and juvenile (10-month-old, N = 20) male beagles. Animals were assigned to 4 groups (N = 5): ACLT, un-operated control, ACLT with zoledronate, and ACLT with meloxicam treatment. Subchondral bone microstructure was evaluated by micro-computed tomography and cartilage integrity was evaluated histologically. We found that ACL-induced subchondral bone changes depended on skeletal maturity of animals. In mature animals, significant loss of trabecular plates that resulted in reduced PR ratio occurred at Month 1 and persisted until Month 8. Zoledronate treatment prevented trabecular plate loss while meloxicam treatment did not. Whether cartilage degeneration is also attenuated warrants further investigation. In juvenile animals that have not reached skeletal maturity, transient changes in trabecular plate and rod microstructure occurred at Month 3 but not Month 9. Neither zoledronate nor meloxicam treatment attenuated bone microstructural changes or cartilage damages. Findings from this study suggest that early inhibition of bone resorption by bisphosphonate after injury may be a promising therapeutic approach to prevent alterations in subchondral bone microstructure associated with PTOA. Our results further demonstrate that pathogenesis of PTOA may differ between adolescent and adult patients and therefore require distinct management strategies.
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Affiliation(s)
- Lei Xu
- Department of Biomedical Engineering, the Southern University of Science and Technology, Shenzhen, PR China; Department of Orthopeadics and Traumatology, LKS Faculty of Medicine, the University of Hong Kong, Hong Kong; Department of Orthopeadics and Traumatology, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, PR China
| | - Yizhong Jenny Hu
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Ying Peng
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Zexi Wang
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Jingyi Wang
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - W William Lu
- Department of Orthopeadics and Traumatology, LKS Faculty of Medicine, the University of Hong Kong, Hong Kong
| | - Bin Tang
- Department of Biomedical Engineering, the Southern University of Science and Technology, Shenzhen, PR China
| | - X Edward Guo
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY, USA.
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WANG X, HU X, YAN D, LIU J, WANG J. Protective effect of aqueous extracts from Taxillus chinensis (DC.) Danser on ovariectomy-induced osteoporosis in rats. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.63822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Xiaoyan WANG
- Huazhong University of Science and Technology, China; Hainan Medical University, China
| | - Xianmin HU
- Wuhan University of Science and Technology, China
| | - Dan YAN
- Wuhan University of Science and Technology, China
| | - Juan LIU
- Wuhan University of Science and Technology, China
| | - Jun WANG
- Wuhan University of Science and Technology, China
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Costela-Ruiz VJ, Melguizo-Rodríguez L, Illescas-Montes R, Ramos-Torrecillas J, Manzano-Moreno FJ, Ruiz C, Bertos EDL. Effects of Therapeutic Doses of Celecoxib on Several Physiological Parameters of Cultured Human Osteoblasts. Int J Med Sci 2019; 16:1466-1472. [PMID: 31673238 PMCID: PMC6818209 DOI: 10.7150/ijms.37857] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 08/13/2019] [Indexed: 12/15/2022] Open
Abstract
Non-steroidal anti-inflammatory drugs (NSAIDs), including cyclooxygenase-2 (COX-2)-selective NSAIDs, are associated with adverse effects on bone tissue. These drugs are frequently the treatment of choice but are the least studied with respect to their repercussion on bone. The objective of this study was to determine the effects of celecoxib on cultured human osteoblasts. Human osteoblasts obtained by primary culture from bone samples were treated with celecoxib at doses of 0.75, 2, or 5μM for 24 h. The MTT technique was used to determine the effect on proliferation; flow cytometry to establish the effect on cell cycle, cell viability, and antigenic profile; and real-time polymerase chain reaction to measure the effect on gene expressions of the differentiation markers RUNX2, alkaline phosphatase (ALP), osteocalcin (OSC), and osterix (OSX). Therapeutic doses of celecoxib had no effect on osteoblast cell growth or antigen expression but had a negative impact on the gene expression of RUNX2 and OSC, although there was no significant change in the expression of ALP and OSX. Celecoxib at therapeutic doses has no apparent adverse effects on cultured human osteoblasts and only inhibits the expression of some differentiation markers. These characteristics may place this drug in a preferential position among NSAIDs used for analgesic and anti-inflammatory therapy during bone tissue repair.
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Affiliation(s)
- Víctor J. Costela-Ruiz
- Biomedical Group (BIO277). Department of Nursing, Faculty of Health Sciences. University of Granada, Avda. Ilustración 60, 18016. Granada, Spain
- Instituto Investigación Biosanitaria, ibs.Granada, C/ Doctor Azpitarte 4, 4ª planta, 18012. Granada, Spain
| | - Lucia Melguizo-Rodríguez
- Biomedical Group (BIO277). Department of Nursing, Faculty of Health Sciences. University of Granada, Avda. Ilustración 60, 18016. Granada, Spain
- Instituto Investigación Biosanitaria, ibs.Granada, C/ Doctor Azpitarte 4, 4ª planta, 18012. Granada, Spain
| | - Rebeca Illescas-Montes
- Biomedical Group (BIO277). Department of Nursing, Faculty of Health Sciences. University of Granada, Avda. Ilustración 60, 18016. Granada, Spain
- Instituto Investigación Biosanitaria, ibs.Granada, C/ Doctor Azpitarte 4, 4ª planta, 18012. Granada, Spain
| | - Javier Ramos-Torrecillas
- Biomedical Group (BIO277). Department of Nursing, Faculty of Health Sciences. University of Granada, Avda. Ilustración 60, 18016. Granada, Spain
- Instituto Investigación Biosanitaria, ibs.Granada, C/ Doctor Azpitarte 4, 4ª planta, 18012. Granada, Spain
| | - Francisco J. Manzano-Moreno
- Instituto Investigación Biosanitaria, ibs.Granada, C/ Doctor Azpitarte 4, 4ª planta, 18012. Granada, Spain
- Biomedical Group (BIO277). Department of Stomatology, School of Dentistry, University of Granada, Colegio Máximo, Campus Universitario de Cartuja 18071. Granada, Spain
| | - Concepción Ruiz
- Biomedical Group (BIO277). Department of Nursing, Faculty of Health Sciences. University of Granada, Avda. Ilustración 60, 18016. Granada, Spain
- Instituto Investigación Biosanitaria, ibs.Granada, C/ Doctor Azpitarte 4, 4ª planta, 18012. Granada, Spain
- Institute of Neuroscience, University of Granada, Centro de Investigación Biomédica (CIBM). Parque de Tecnológico de la Salud (PTS) Avda. del Conocimiento S/N, 18016. Armilla, Granada, Spain
| | - Elvira De Luna- Bertos
- Biomedical Group (BIO277). Department of Nursing, Faculty of Health Sciences. University of Granada, Avda. Ilustración 60, 18016. Granada, Spain
- Instituto Investigación Biosanitaria, ibs.Granada, C/ Doctor Azpitarte 4, 4ª planta, 18012. Granada, Spain
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Gurgel BCDV, Almeida KTD, Peixoto RF, Lima KC, Kantovitz KR, Humberto Nociti-Junior F, Toledo SD. Selective COX-2 Inhibitor (Meloxicam) and Tooth-Supporting Bone Quality. A Histomorphometric Study in Rats. Braz Dent J 2017; 28:135-139. [DOI: 10.1590/0103-6440201701081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 01/04/2017] [Indexed: 05/29/2023] Open
Abstract
Abstract The effects of the non-steroidal anti-inflammatory drugs (NSAIDs) on bone quantity and quality were investigated for years. However, there is lack of information on the impact of NSAIDs on the quality of tooth-supporting alveolar bone in absence of periodontal inflammation. Thus, the aim of this study was to evaluate histometrically the influence of a selective COX-2 NSAID (Meloxicam) on the inter-radicular bone mineral density in rats. Forty-nine adult male Wistar rats were randomly divided into four experimental groups: Subcutaneous injection of 0.9% sterile saline for 15 days (G1; n=12) and 45 days (G2; n=11); and subcutaneous injection of Meloxicam for 15 days (G3; n=13) and 45 days (G4; n=13). Mineral density was histometrically determined in the inter-radicular area of the 1st mandibular molars and data analysis performed by two-way ANOVA (a=5%). Results showed no interaction between time and treatment (p>0.05) and that meloxicam did not affect the alveolar bone density. In contrast, it was found that inter-radicular alveolar bone density increased with time (91.88±3.08% and 92.86±2.38% for groups 15 and 45 days, respectively) (p<0.05). Within the limits of this study, daily administration of a selective COX-2 inhibitor (Meloxicam) did not affect the quality of the inter-radicular alveolar bone in absence of periodontal infection.
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Amri EZ, Pisani DF. Control of bone and fat mass by oxytocin. Horm Mol Biol Clin Investig 2017; 28:95-104. [PMID: 27865092 DOI: 10.1515/hmbci-2016-0045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 10/18/2016] [Indexed: 11/15/2022]
Abstract
Osteoporosis and overweight/obesity constitute major worldwide public health burdens. Aging is associated with a decrease in hormonal secretion, lean mass and bone mass, and an increase in fat accumulation. It is established that both obesity and osteoporosis are affected by genetic and environmental factors, bone remodeling and adiposity are both regulated through the hypothalamus and sympathetic nervous system. Oxytocin (OT), belongs to the pituitary hormone family and regulates the function of peripheral target organs, its circulating levels decreased with age. Nowadays, it is well established that OT plays an important role in the control of bone and fat mass and their metabolism. Of note, OT and oxytocin receptor knock out mice develop bone defects and late-onset obesity. Thus OT emerges as a promising molecule in the treatment of osteoporosis and obesity as well as associated metabolic disorders such as type 2 diabetes and cardiovascular diseases. In this review, we will discuss findings regarding the OT effects on bone and fat mass.
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Tyagi AK, Prasad S, Majeed M, Aggarwal BB. Calebin A downregulates osteoclastogenesis through suppression of RANKL signalling. Arch Biochem Biophys 2016; 593:80-9. [PMID: 26874195 DOI: 10.1016/j.abb.2016.02.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 01/28/2016] [Accepted: 02/07/2016] [Indexed: 10/22/2022]
Abstract
Osteoporosis is a bone disease that is exacerbated by aging and age-associated chronic diseases such as cancer. Cancer-induced bone loss is usually treated with bisphosphonates or denosumab, an antibody against receptor activator of nuclear factor (NF)-κB ligand (RANKL). Because these drugs are expensive and have numerous side effects and high rates of toxicity, safer, more effective, and more affordable therapies for osteoporosis are still needed. We identified a compound, calebin A (CA), derived from turmeric (Curcuma longa) that affects osteoclastogenesis through modulation of the RANKL signalling pathway. The CA's effect on NF-κB activation was examined by electrophoretic mobility shift assay. Using mouse macrophages in vitro model, we found that CA suppressed RANKL-induced osteoclast differentiation of macrophages into osteoclasts, and downregulate RANKL-induced osteoclastogenesis-related marker gene expression, including NFATc-1, TRAP, CTR, and cathepsin K. CA also suppressed the osteoclastogenesis induced by multiple myeloma and breast cancer cells. This effect of CA was correlated with suppression of the phosphorylation and degradation of inhibitor of κB and, thus, inhibition of NF-κB activation. Furthermore, we found that an NF-κB-specific inhibitory peptide blocked RANKL-induced osteoclastogenesis, demonstrating that the NF-κB signalling pathway is mandatory for RANKL-induced osteoclastogenesis. Our results conclusively indicate that CA downmodulates the osteoclastogenesis induced by RANKL and by tumour cells through suppression of NF-κB pathway.
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Affiliation(s)
- Amit K Tyagi
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Sahdeo Prasad
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
| | | | - Bharat B Aggarwal
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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Liu Y, Cui Y, Chen Y, Gao X, Su Y, Cui L. Effects of dexamethasone, celecoxib, and methotrexate on the histology and metabolism of bone tissue in healthy Sprague Dawley rats. Clin Interv Aging 2015; 10:1245-53. [PMID: 26345380 PMCID: PMC4531040 DOI: 10.2147/cia.s85225] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE To investigate the long-term effects of three antiarthritics, namely dexamethasone, celecoxib, and methotrexate on the histology and metabolism of intact bone tissue in rats. METHODS Thirty-two 12-week-old healthy female Sprague Dawley rats were randomly allocated into four groups: 1) control (saline, daily); 2) dexamethasone (2 mg/kg, twice weekly); 3) celecoxib (50 mg/kg, daily); and 4) methotrexate (0.5 mg/kg, twice weekly). The drugs were administered to the rats for 12 weeks and the animals were weighed on a weekly basis. The femurs and lumbar vertebrae were harvested for bone mineral density and bone mechanical properties analyses. The proximal tibiae were processed for bone histomorphometry and micro-computed tomography analyses. RESULTS The following results were obtained: 1) dexamethasone strongly inhibited bone formation rate accompanied with a decrease in bone mineral density and bone biomechanical properties; 2) celecoxib stimulated bone resorption, leading to a decrease of bone mass and femur biomechanic properties; and 3) methotrexate caused bone loss and bone quality deterioration to a lesser extent due to the increase of the bone turnover rate on the proximal tibial metaphysis of the rats. CONCLUSION This study provides a comparative profile of the long-term effects of clinical doses of celecoxib, methotrexate, and dexamethasone on intact skeletons of the rats. The results indicate that the three antiarthritics have varying degrees of side effects on bone metabolism, and these findings will help physicians to learn more about the potential effects of antiarthritics on bone metabolism.
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Affiliation(s)
- Yanzhi Liu
- Department of Pharmacology, Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, Guangdong, People’s Republic of China
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, People’s Republic of China
| | - Yang Cui
- Department of Rheumatism Medicine, Guangdong General Hospital, Guangzhou, People’s Republic of China
| | - Yan Chen
- Department of Pharmacology, Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, Guangdong, People’s Republic of China
| | - Xiang Gao
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, People’s Republic of China
| | - Yanjie Su
- Department of Pharmacology, Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, Guangdong, People’s Republic of China
| | - Liao Cui
- Department of Pharmacology, Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, Guangdong, People’s Republic of China
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, People’s Republic of China
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Tsuji S, Tomita T, Nakase T, Hamada M, Kawai H, Yoshikawa H. Celecoxib, a selective cyclooxygenase-2 inhibitor, reduces level of a bone resorption marker in postmenopausal women with rheumatoid arthritis. Int J Rheum Dis 2013; 17:44-9. [PMID: 24472266 DOI: 10.1111/1756-185x.12076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM Celecoxib (CEL), a selective cyclooxygenase-2 (COX-2) inhibitor, has been reported to suppress osteoclastogenesis in vitro, reduce levels of bone resorption markers in ovariectomized (OVX) mice, and prevent bone destruction in rheumatoid arthritis (RA) model mice; however, no clinical data has been reported. Here, we prospectively evaluated the changes in bone turnover markers in RA patients who switched from nonsteroidal anti-inflammatory drugs (NSAIDs) to CEL, to examine the effects of selective COX-2 inhibitor on bone metabolism. METHODS RA patients who had been treated with NSAIDs for more than 12 weeks were switched to CEL (400 mg/day) without any other changes in previously prescribed medications. Urinary type I collagen cross-linked N-telopeptide (uNTX), serum bone alkaline phosphatase (BAP), C-reactive protein (CRP), erythrocyte sedimentation rate (ESR) and matrix metalloproteinase-3 (MMP-3) were evaluated before switching to CEL and 16 weeks later. RESULTS Significant reductions in uNTX, a bone resorption marker, were observed in 60 female patients (P = 0.042), especially in 52 postmenopausal women (P = 0.033). However, uNTX level did not significantly change in premenopausal women or in men. There were no significant changes in BAP, a bone formation marker. CRP significantly decreased (P = 0.007), while ESR and MMP-3 were unchanged. CONCLUSION CEL reduced the levels of a bone resorption marker in postmenopausal RA patients, suggesting that this drug may attenuate the accelerated osteoclastic bone resorption associated with menopause.
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Affiliation(s)
- Shigeyoshi Tsuji
- Department of Orthopaedic Surgery, Hoshigaoka Koseinenkin Hospital, Osaka, Japan
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Reuter S, Gupta SC, Phromnoi K, Aggarwal BB. Thiocolchicoside suppresses osteoclastogenesis induced by RANKL and cancer cells through inhibition of inflammatory pathways: a new use for an old drug. Br J Pharmacol 2012; 165:2127-39. [PMID: 21955206 DOI: 10.1111/j.1476-5381.2011.01702.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND AND PURPOSE Most patients with cancer die not because of the tumour in the primary site, but because it has spread to other sites. Common tumours, such as breast, multiple myeloma, and prostate tumours, frequently metastasize to the bone. To search for an inhibitor of cancer-induced bone loss, we investigated the effect of thiocolchicoside, a semi-synthetic colchicoside derived from the plant Gloriosa superba and clinically used as a muscle relaxant, on osteoclastogenesis induced by receptor activator of NF-κB ligand (RANKL) and tumour cells. EXPERIMENTAL APPROACH We used RAW 264.7 (murine macrophage) cells, a well-established system for osteoclastogenesis, and evaluated the effect of thiocolchicoside on RANKL-induced NF-κB signalling and osteoclastogenesis as well as on osteoclastogenesis induced by tumour cells. KEY RESULTS Thiocolchicoside suppressed osteoclastogenesis induced by RANKL, and by breast cancer and multiple myeloma cells. Inhibition of the NF-κB pathway was responsible for this effect since the colchicoside inhibited RANKL-induced NF-κB activation, activation of IκB kinase (IKK) and suppressed inhibitor of NF-κBα (IκBα) phosphorylation and degradation, an inhibitor of NF-κB. Furthermore, an inhibitor of the IκBα kinase γ or NF-κB essential modulator, the regulatory component of the IKK complex, demonstrated that the NF-κB signalling pathway is mandatory for osteoclastogenesis induced by RANKL. CONCLUSIONS AND IMPLICATIONS Together, these data suggest that thiocolchicoside significantly suppressed osteoclastogenesis induced by RANKL and tumour cells via the NF-κB signalling pathway. Thus, thiocolchicoside, a drug that has been used for almost half a century to treat muscle pain, may also be considered as a new treatment for bone loss.
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Affiliation(s)
- Simone Reuter
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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11
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Up-regulation of the inflammatory response by ovariectomy in collagen-induced arthritis. effects of tin protoporphyrin IX. Inflammation 2012; 34:585-96. [PMID: 21046213 DOI: 10.1007/s10753-010-9266-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
We have studied the influence of ovariectomy on the inflammatory response and bone metabolism on CIA as a model of postmenopausal arthritis as well as the effects of tin protoporphyrin IX (SnPP), a heme oxygenase inhibitor. Ovariectomy in non-arthritic mice produced increased serum PGD2 levels and up-regulated the expression of COX-2, h-PGDS, l-PGDS, and HO-1 in the joints. In CIA, ovariectomy potentiated the inflammatory response with higher levels of serum IL-6 and MMP-3, local PGD2 and MMP-3 as well as trabecular bone erosion. In OVX-CIA, SnPP decreased the serum levels of IL-6, MMP-3, and PGD2; down-regulated TNFα, COX-2, hPGDS, PGD2, PGE2, and MMP-3 in joint tissues; and also decreased focal bone loss in the inflamed joint. Ovariectomy up-regulates inflammatory mediators in non-arthritic and in arthritic animals. In the OVX-CIA model, SnPP exerts anti-inflammatory effects which are not associated with the prevention of systemic bone loss.
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Williams LJ, Pasco JA, Henry MJ, Sanders KM, Nicholson GC, Kotowicz MA, Berk M. Paracetamol (acetaminophen) use, fracture and bone mineral density. Bone 2011; 48:1277-81. [PMID: 21396491 DOI: 10.1016/j.bone.2011.03.435] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Revised: 02/15/2011] [Accepted: 03/02/2011] [Indexed: 01/02/2023]
Abstract
Paracetamol is the most widely prescribed simple analgesic and antipyretic. It exerts its effects via cyclooxygenase and endocannabinoid pathways, which may affect signalling in bone cells and hence influence bone metabolism. Given the high rates of paracetamol use in the community and the evidence linking its mechanism of action to bone metabolism, we aimed to investigate the association between paracetamol use, fracture, and bone mineral density (BMD) in women participating in the Geelong Osteoporosis Study (GOS). Cases (n = 569) were women aged ≥ 50 years identified from radiological reports as having sustained a fracture between 1994 and 1996. Controls (n = 775) were women without fracture recruited from the same region during this period. BMD was measured at the spine, hip, total body and forearm using dual energy absorptiometry. Medication use, medical history and lifestyle factors were self-reported. There were 69 (12.1%) paracetamol users among the cases and 63 (8.1%) among the controls. Paracetamol use increased the odds for fracture (OR = 1.56, 95%CI 1.09-2.24, p = 0.02). Adjustment for BMD at the spine, total hip and forearm did not confound the association. However, incorporating total body BMD into the model attenuated the association (adjusted OR = 1.46, 95%CI 1.00-2.14, p = 0.051). Further adjustment for age, weight, physical activity, smoking, alcohol, calcium intake, medication use, medical conditions, falls and previous fracture did not explain the association. These data suggest that paracetamol use is a risk factor for fracture, although the mechanism of action remains unclear.
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Affiliation(s)
- Lana J Williams
- School of Medicine, Deakin University, Australia; Department of Psychiatry, University of Melbourne, Australia.
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Rahman MM, Bhattacharya A, Banu J, Kang JX, Fernandes G. Endogenous n-3 fatty acids protect ovariectomy induced bone loss by attenuating osteoclastogenesis. J Cell Mol Med 2010; 13:1833-44. [PMID: 20141608 DOI: 10.1111/j.1582-4934.2009.00649.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Beneficial effects of n-3 fatty acids (FA) on bone mineral density (BMD) have been reported in mice, rats and human beings, but the precise mechanisms involved have not been described. This study used the Fat-1 mouse, a transgenic model that synthesizes n-3 FA from n-6 FA to directly determine if outcome of bone health were correlated with n-3 FA. Ovariectomized (Ovx) and sham operated wild-type (WT) and Fat-1 mice were fed an AIN-93M diet containing 10% corn oil for 24 weeks. BMD was analysed by dual energy x-ray absorptiometry. Fat-1 Ovx mice exhibited significantly lower level of osteotropic factors like receptor activator of NF-kappaB ligand and tartrate-resistant acid phosphatase (TRAP)5b in serum and higher BMD in distal femoral metaphysis, proximal tibial metaphysis, femoral diaphysis and lumbar vertebra as compared to WT Ovx mice. LPS-stimulated bone marrow (BM) cells from Fat-1 Ovx mice produced significantly lower level of pro-inflammatory cytokines like tumour necrosis factor-alpha, interleukin (IL)-1-beta, IL-6 and higher level of anti-inflammatory cytokines like IL-10, IFN-gamma and higher level of nitric oxide as compared to BM cells from WT Ovx mice. LPS-stimulated COX-II activity as well as NF-kappaB activation in BM cells from Fat-1 Ovx mice was significantly less as compared to BM cells from WT Ovx mice. Furthermore, Fat-1 BM cells generated significantly less number of TRAP osteoclast-like cells as compared to WT BM cells. In conclusion, we offer further insight into the mechanisms involved in preventing the BMD loss in Ovx mice by n-3 FA using a Fat-1 transgenic mouse model.
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Affiliation(s)
- Md Mizanur Rahman
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Texas Health Science Center at San Antonio, San Antonio, TX -78229-3900, USA
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Rahman MM, Bhattacharya A, Banu J, Kang JX, Fernandes G. Endogenous n-3 fatty acids protect ovariectomy induced bone loss by attenuating osteoclastogenesis. J Cell Mol Med 2010. [PMID: 20141608 DOI: 10.1111/j.1582-4934.2008.00649.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Beneficial effects of n-3 fatty acids (FA) on bone mineral density (BMD) have been reported in mice, rats and human beings, but the precise mechanisms involved have not been described. This study used the Fat-1 mouse, a transgenic model that synthesizes n-3 FA from n-6 FA to directly determine if outcome of bone health were correlated with n-3 FA. Ovariectomized (Ovx) and sham operated wild-type (WT) and Fat-1 mice were fed an AIN-93M diet containing 10% corn oil for 24 weeks. BMD was analysed by dual energy x-ray absorptiometry. Fat-1 Ovx mice exhibited significantly lower level of osteotropic factors like receptor activator of NF-kappaB ligand and tartrate-resistant acid phosphatase (TRAP)5b in serum and higher BMD in distal femoral metaphysis, proximal tibial metaphysis, femoral diaphysis and lumbar vertebra as compared to WT Ovx mice. LPS-stimulated bone marrow (BM) cells from Fat-1 Ovx mice produced significantly lower level of pro-inflammatory cytokines like tumour necrosis factor-alpha, interleukin (IL)-1-beta, IL-6 and higher level of anti-inflammatory cytokines like IL-10, IFN-gamma and higher level of nitric oxide as compared to BM cells from WT Ovx mice. LPS-stimulated COX-II activity as well as NF-kappaB activation in BM cells from Fat-1 Ovx mice was significantly less as compared to BM cells from WT Ovx mice. Furthermore, Fat-1 BM cells generated significantly less number of TRAP osteoclast-like cells as compared to WT BM cells. In conclusion, we offer further insight into the mechanisms involved in preventing the BMD loss in Ovx mice by n-3 FA using a Fat-1 transgenic mouse model.
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Affiliation(s)
- Md Mizanur Rahman
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Texas Health Science Center at San Antonio, San Antonio, TX -78229-3900, USA
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Kohrt WM, Barry DW, Van Pelt RE, Jankowski CM, Wolfe P, Schwartz RS. Timing of ibuprofen use and bone mineral density adaptations to exercise training. J Bone Miner Res 2010; 25:1415-22. [PMID: 20200939 PMCID: PMC3152206 DOI: 10.1002/jbmr.24] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Prostaglandins (PGs) are essential signaling factors in bone mechanotransduction. In animals, inhibition of the enzyme responsible for PG synthesis (cyclooxygenase) by nonsteroidal anti-inflammatory drugs (NSAIDs) blocks the bone-formation response to loading when administered before, but not immediately after, loading. The aim of this proof-of-concept study was to determine whether the timing of NSAID use influences bone mineral density (BMD) adaptations to exercise in humans. Healthy premenopausal women (n = 73) aged 21 to 40 years completed a supervised 9-month weight-bearing exercise training program. They were randomized to take (1) ibuprofen (400 mg) before exercise, placebo after (IBUP/PLAC), (2) placebo before, ibuprofen after (PLAC/IBUP), or (3) placebo before and after (PLAC/PLAC) exercise. Relative changes in hip and lumbar spine BMD from before to after exercise training were assessed using a Hologic Delphi-W dual-energy X-ray absorptiometry (DXA) instrument. Because this was the first study to evaluate whether ibuprofen use affects skeletal adaptations to exercise, only women who were compliant with exercise were included in the primary analyses (IBUP/PLAC, n = 17; PLAC/PLAC, n = 23; and PLAC/IBUP, n = 14). There was a significant effect of drug treatment, adjusted for baseline BMD, on the BMD response to exercise for regions of the hip (total, p < .001; neck, p = .026; trochanter, p = .040; shaft, p = .019) but not the spine (p = .242). The largest increases in BMD occurred in the group that took ibuprofen after exercise. Total-hip BMD changes averaged -0.2% +/- 1.3%, 0.4% +/- 1.8%, and 2.1% +/- 1.7% in the IBUP/PLAC, PLAC/PLAC, and PLAC/IBUP groups, respectively. This preliminary study suggests that taking NSAIDs after exercise enhances the adaptive response of BMD to exercise, whereas taking NSAIDs before may impair the adaptive response.
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Affiliation(s)
- Wendy M Kohrt
- Department of Medicine, Division of Geriatric Medicine, University of Colorado Denver, Denver, CO 80045, USA.
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Oxytocin Controls Differentiation of Human Mesenchymal Stem Cells and Reverses Osteoporosis. Stem Cells 2008; 26:2399-407. [DOI: 10.1634/stemcells.2008-0127] [Citation(s) in RCA: 146] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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