51
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Rim YA, Nam Y, Ju JH. The Role of Chondrocyte Hypertrophy and Senescence in Osteoarthritis Initiation and Progression. Int J Mol Sci 2020; 21:ijms21072358. [PMID: 32235300 PMCID: PMC7177949 DOI: 10.3390/ijms21072358] [Citation(s) in RCA: 166] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 03/27/2020] [Accepted: 03/27/2020] [Indexed: 12/31/2022] Open
Abstract
Osteoarthritis (OA) is the most common joint disease that causes pain and disability in the adult population. OA is primarily caused by trauma induced by an external force or by age-related cartilage damage. Chondrocyte hypertrophy or chondrocyte senescence is thought to play a role in the initiation and progression of OA. Although chondrocyte hypertrophy and cell death are both crucial steps during the natural process of endochondral bone formation, the abnormal activation of these two processes after injury or during aging seems to accelerate the progression of OA. However, the exact mechanisms of OA progression and these two processes remain poorly understood. Chondrocyte senescence and hypertrophy during OA share various markers and processes. In this study, we reviewed the changes that occur during chondrocyte hypertrophy or senescence in OA and the attempts that were made to regulate them. Regulation of hypertrophic or senescent chondrocytes might be a potential therapeutic target to slow down or stop OA progression; thus, a better understanding of the processes is required for management.
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Affiliation(s)
- Yeri Alice Rim
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (Y.A.R.); (Y.N.)
| | - Yoojun Nam
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (Y.A.R.); (Y.N.)
| | - Ji Hyeon Ju
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (Y.A.R.); (Y.N.)
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary’s Hospital, Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Correspondence: ; Tel.: +82-2-2258-6895
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Shao Q, Xue S, Jiang Y, Lu H, Sang W, Wang C, Xue B, Liu Y, Zhu L, Ma J. Esculentoside A protects against osteoarthritis by ameliorating inflammation and repressing osteoclastogenesis. Int Immunopharmacol 2020; 82:106376. [PMID: 32163857 DOI: 10.1016/j.intimp.2020.106376] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 03/03/2020] [Accepted: 03/03/2020] [Indexed: 12/12/2022]
Abstract
Osteoarthritis is a relatively common disorder of articular deterioration related to cartilage damage, subchondral bone remodelling, inflammation and metabolism. Agents that can inhibit cartilage degradation and osteoclastogenesis are required for the prevention and treatment of osteoarthritis. Esculentoside A, the highest concentration triterpene saponin isolated from the root of Phytolacca esculenta, has commonly been used for the treatment of chronic bronchitis. However, the role esculentoside A plays in ameliorating osteoarthritis has not been reported. We found that esculentoside A suppresses the expression of IL-1β-induced inflammatory and metabolic factors (IL-6, IL-8, TNF-α, MMP2, MMP3 and MMP13). In addition, esculentoside A restrains osteoclast formation by inhibiting the marker gene expression of NFATc1 and c-Fos. Our results indicate that esculentoside A markedly suppresses IL-1β-induced NF-κB and MAPK signalling pathway activation in chondrocytes, and inhibits RANKL-induced osteoclast precursor generation. Finally, treatment with esculentoside A inhibits the progressive cartilage degeneration and osteoclastogenesis in osteoarthritis mouse models. In summary, these results demonstrate that esculentoside A could be a latent therapeutic reagent for the treatment of osteoarthritis.
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Affiliation(s)
- Qing Shao
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Song Xue
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Yafei Jiang
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Haiming Lu
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Weilin Sang
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Cong Wang
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Bao Xue
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Yu Liu
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Libo Zhu
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Jinzhong Ma
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China.
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53
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Zhu J, Zhu Y, Xiao W, Hu Y, Li Y. Instability and excessive mechanical loading mediate subchondral bone changes to induce osteoarthritis. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:350. [PMID: 32355794 PMCID: PMC7186756 DOI: 10.21037/atm.2020.02.103] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Background To assess the diversified effects of mechanical instability, excessive mechanical loading on subchondral bone remodeling. And to investigate the underlying cartilage degeneration and osteoarthritis (OA) progression in ipsilateral and contralateral knees, given that OA progression always affects joints bilaterally. Methods Anterior cruciate ligament transection (ACLT) of the left knee was used to induce OA in C57/B6 mice for 1, 3 and 6 months. Both left (ipsilateral) and right (contralateral) knees underwent micro-computerized tomography (micro-CT) scan and morphological analysis. The subchondral bone metabolism analysis by immunostaining of tartrate-resistant acid phosphatase (TRAP) and Osterix. Behavioral analyses including von Frey test and CatWalk gait analysis were also performed. Western blot analysis was performed to assess the signaling pathways involved in OA progression. Results Analyses showed that various changes in ipsilateral and contralateral knees lead to OA progression. Articular cartilage was rapidly destroyed on the ipsilateral side but was only gradually destroyed on the contralateral side. Micro-CT data showed a rapid decrease with a subsequent partial recovery of bone volume in the late stage on the ipsilateral side, while a gradual condensation of bone density was seen on the contralateral side. Immunostaining showed increased osteoclastic and osteoblastic activity in the early stage on the ipsilateral side, but only slight osteoblastic changes on the contralateral side. Behavioral analyses including von Frey and gait analysis showed that contralateral knees compensate ipsilateral mechanical loading, but also that this mechanism failed to work in the late stage. Conclusions Diversified mechanical loading properties lead to OA progression through different mechanisms of subchondral bone remodeling. Acute ACLT led to OA through bone density reduction, while the contralateral side developed OA gradually due to subchondral bone sclerosis.
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Affiliation(s)
- Jianxi Zhu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yong Zhu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Wenfeng Xiao
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yihe Hu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yusheng Li
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
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Abbasifard M, Kamiab Z, Bagheri-Hosseinabadi Z, Sadeghi I. The role and function of long non-coding RNAs in osteoarthritis. Exp Mol Pathol 2020; 114:104407. [PMID: 32088191 DOI: 10.1016/j.yexmp.2020.104407] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 01/03/2020] [Accepted: 02/19/2020] [Indexed: 12/20/2022]
Abstract
Osteoarthiritis (OA) is the most prevalent disease of articulating joints in human that frequently results in joint pain, movement limitations, inflammation, and progressive degradation of articular cartilage. The etiology of OA is not completely clear and there is no full treatment for this disease. Molecular investigations have revealed the involvement of non-coding RNAs such as Long non-coding RNAs (lncRNAs) in OA pathogenesis. LncRNAs play roles in multiple cellular and biological processes. Moreover, numerous lncRNAs are differentially expressed in human OA cartilage. In this review, we underlie the increasing evidence for the critical role of lncRNAs in OA pathogenesis reviewing the latest researches.
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Affiliation(s)
- Mitra Abbasifard
- Department of Internal Medicine, Ali-Ibn Abi-Talib Hospital, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Zahra Kamiab
- Department of Family Medicine, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran; Clinical Research Development Unit, Ali Ibn Abi Talib Hospital, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Zahra Bagheri-Hosseinabadi
- Department of Clinical Biochemistry, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
| | - Iman Sadeghi
- Centre for Genomic Regulation (CRG), The Barcelona Institute for Science and Technology, Dr. Aiguader 88, Barcelona, E-08003 Catalonia, Spain; CEINGE-biotecnologie avanzate, Naples, Italy.
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55
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Fadda SM, Abdelaleem EA, Mohamed RA, Mansour HM, Doudar NA. Is leptin receptor gene (Gln223Arg) polymorphism associated with disease susceptibility and severity in patients of primary knee osteoarthritis? THE EGYPTIAN RHEUMATOLOGIST 2020. [DOI: 10.1016/j.ejr.2019.04.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Deng Q, Yu X, Deng S, Ye H, Zhang Y, Han W, Li J, Yu Y. Midkine promotes articular chondrocyte proliferation through the MK-LRP1-nucleolin signaling pathway. Cell Signal 2020; 65:109423. [PMID: 31639491 DOI: 10.1016/j.cellsig.2019.109423] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 09/16/2019] [Accepted: 09/18/2019] [Indexed: 01/20/2023]
Abstract
Osteoarthritis (OA) is the most common disease of joint tissues; unfortunately, there are currently no curative therapies available for OA. Chondrocytes, the only cell type residing in cartilage, secrete many types of collagen (the mainly one is type II collagen) and aggrecan, which are the main components of the cartilage matrix. Chondrocyte apoptosis can lead to OA degenerative progression. We previously indicated that recombinant human midkine (rhMK), as a chondrocyte growth factor has a significant reparative effect on cartilage injury animal models. However, the molecular mechanism of this restorative function remains under investigation. Herein, we focused on the molecular mechanism underlying the role of MK in promoting the proliferation of chondrocytes cultured in vitro. Chondrocytes from rats and OA patients were successfully isolated by the digestion of articular cartilage using type II collagenase, and their proliferation was evaluated by a CCK8 assay and flow cytometry. rhMK stimulated the proliferation of chondrocytes from both OA patients and rats. Furthermore, qRT-PCR, shRNA-mediated knockdown, Western blot and immunoprecipitation (IP) assays were performed to identify the receptor and key elements responsible for the role of MK in promoting chondrocyte proliferation. Low-density lipoprotein receptor-related protein 1 (LRP1) was identified as the dominant MK receptor in chondrocytes that, as a translocator, mediates the endocytosis of MK. After being transferred into chondrocytes, MK was shown to form a complex with nucleolin that interacts with the active form of K-Ras. Upon the activation of ERK1/2, cyclin D1 expression was upregulated, promoting the chondrocyte cell cycle. Our data reveal for the first time the role of the MK-LRP1-nucleolin signaling pathway in facilitating MK-induced chondrocyte proliferation, thus providing a strong theoretical foundation for the further use of MK in OA clinical therapy.
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Affiliation(s)
- Qing Deng
- Shanghai Municipality Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, NO.800, Dongchuan Road, Shanghai, 200240, China; Laboratory of Regeneromics, School of Pharmacy, Shanghai Jiao Tong University, NO.800, Dongchuan Road, Shanghai, 200240, China
| | - Xiaolan Yu
- Shanghai Municipality Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, NO.800, Dongchuan Road, Shanghai, 200240, China
| | - Shaorong Deng
- Shanghai Municipality Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, NO.800, Dongchuan Road, Shanghai, 200240, China
| | - Hao Ye
- Shanghai Municipality Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, NO.800, Dongchuan Road, Shanghai, 200240, China
| | - Yang Zhang
- Laboratory of Regeneromics, School of Pharmacy, Shanghai Jiao Tong University, NO.800, Dongchuan Road, Shanghai, 200240, China
| | - Wei Han
- Laboratory of Regeneromics, School of Pharmacy, Shanghai Jiao Tong University, NO.800, Dongchuan Road, Shanghai, 200240, China
| | - Jingjing Li
- Laboratory of Regeneromics, School of Pharmacy, Shanghai Jiao Tong University, NO.800, Dongchuan Road, Shanghai, 200240, China.
| | - Yan Yu
- Shanghai Municipality Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, NO.800, Dongchuan Road, Shanghai, 200240, China.
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Kaneko Y, Tanigawa N, Sato Y, Kobayashi T, Nakamura S, Ito E, Soma T, Miyamoto K, Kobayashi S, Harato K, Matsumoto M, Nakamura M, Niki Y, Miyamoto T. Oral administration of N-acetyl cysteine prevents osteoarthritis development and progression in a rat model. Sci Rep 2019; 9:18741. [PMID: 31822750 PMCID: PMC6904562 DOI: 10.1038/s41598-019-55297-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 11/26/2019] [Indexed: 01/08/2023] Open
Abstract
The number of osteoarthritis patients is increasing with the rise in the number of elderly people in developed countries. Osteoarthritis, which causes joint pain and deformity leading to loss of activities of daily living, is often treated surgically. Here we show that mechanical stress promotes accumulation of reactive oxygen species (ROS) in chondrocytes in vivo, resulting in chondrocyte apoptosis and leading to osteoarthritis development in a rat model. We demonstrate that mechanical stress induces ROS accumulation and inflammatory cytokine expression in cultured chondrocytes in vitro and that both are inhibited by treatment with the anti-oxidant N-acetyl cysteine (NAC). In vivo, osteoarthritis development in a rat osteoarthritis model was also significantly inhibited by oral administration of NAC. MMP13 expression and down-regulation of type II collagen in chondrocytes, both of which indicate osteoarthritis, as well as chondrocyte apoptosis in osteoarthritis rats were inhibited by NAC. Interestingly, osteoarthritis development in sham-operated control sides, likely due to disruption of normal weight-bearing activity on the control side, was also significantly inhibited by NAC. We conclude that osteoarthritis development in rats is significantly antagonized by oral NAC administration. Currently, no oral medication is available to prevent osteoarthritis development. Our work suggests that NAC may represent such a reagent and serve as osteoarthritis treatment.
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Affiliation(s)
- Yosuke Kaneko
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Nobuharu Tanigawa
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yuiko Sato
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Advanced Therapy for Musculoskeletal Disorders II, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tami Kobayashi
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Musculoskeletal Reconstruction and Regeneration Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Satoshi Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Eri Ito
- Institute for Integrated Sports Medicine, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tomoya Soma
- Division of Oral and Maxillofacial Surgery, Department of Dentistry and Oral Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kana Miyamoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shu Kobayashi
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kengo Harato
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Morio Matsumoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masaya Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yasuo Niki
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Takeshi Miyamoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan. .,Department of Advanced Therapy for Musculoskeletal Disorders II, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan. .,Department of Musculoskeletal Reconstruction and Regeneration Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan. .,Department of Orthopedic Surgery, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan.
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58
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Polygenic risk score for disability and insights into disability-related molecular mechanisms. GeroScience 2019; 41:881-893. [PMID: 31707593 DOI: 10.1007/s11357-019-00125-8] [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: 09/25/2019] [Accepted: 10/15/2019] [Indexed: 10/25/2022] Open
Abstract
Late life disability is a highly devastating condition affecting 20% or more of persons aged 65 years and older in the USA; it is an important determinant of acute medical and long-term care costs which represent a growing burden on national economies. Disability is a multifactorial trait that contributes substantially to decline of health/wellbeing. Accordingly, gaining insights into the genetics of disability could help in identifying molecular mechanisms of this devastating condition and age-related processes contributing to a large fraction of specific geriatric conditions, concordantly with geroscience. We performed a genome-wide association study of disability in a sample of 24,068 subjects from five studies with 12,550 disabled individuals. We identified 30 promising disability-associated polymorphisms in 19 loci at p < 10-4; four of them attained suggestive significance, p < 10-5. In contrast, polygenic risk scores aggregating effects of minor alleles of independent SNPs that were adversely or beneficially associated with disability showed highly significant associations in meta-analysis, p = 3.13 × 10-45 and p = 5.60 × 10-23, respectively, and were replicated in each study. The analysis of genetic pathways, related diseases, and biological functions supported the connections of genes for the identified SNPs with disabling and age-related conditions primarily through oxidative/nitrosative stress, inflammatory response, and ciliary signaling. We identified musculoskeletal system development, maintenance, and regeneration as important components of gene functions. The beneficial and adverse gene sets may be differently implicated in the development of musculoskeletal-related disability with the beneficial set characterized, e.g., by regulation of chondrocyte proliferation and bone formation, and the adverse set by inflammation and bone loss.
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Li L, Liu F, Huang W, Wang J, Wan Y, Li M, Pang Y, Yin Z. Ricolinostat (ACY-1215) inhibits VEGF expression via PI3K/AKT pathway and promotes apoptosis in osteoarthritic osteoblasts. Biomed Pharmacother 2019; 118:109357. [PMID: 31548177 DOI: 10.1016/j.biopha.2019.109357] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/09/2019] [Accepted: 08/14/2019] [Indexed: 01/07/2023] Open
Abstract
Osteoarthritis (OA) is involved in these pathophysiological changes of articular cartilage, subchondral bone and synovium. As a selective HDAC6 inhibitor, Ricolinostat (ACY-1215) has demonstrated chondroprotective effects in OA. However, its efficacy remains unclear in subchondral bone. In this study, we found that the mRNA and protein levels of HDAC6 were elevated in human OA osteoblasts in vitro. PI3K/AKT signaling pathway was suppressed with downregulation of VEGF expression in osteoblasts after ACY-1215 treatment. ACY-1215 promoted apoptosis of OA osteoblast in a concentration-dependent manner, and the expression of apoptosis-related proteins was also changed by activating caspase pathway. Moreover, western blotting showed decreased expression of MMP9 and MMP13 in IL-1β-induced chondrocytes after co-culture with ACY-1215-stimulated osteoblasts. These data of immunohistochemistry and micro-CT from OA model mice also demonstrated the weak staining of MMPs in cartilage and prevention of aberrant subchondral bone formation after ACY-1215 injection. Therefore, high expression of HDAC6 in osteoblasts also contributed to the OA progression, and our study provided a new evidence that HDAC6 inhibitor may be a potential therapeutic drug for OA.
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Affiliation(s)
- Lei Li
- Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, #269 Jixi Road, Hefei, Anhui, China
| | - Fuen Liu
- Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, #269 Jixi Road, Hefei, Anhui, China
| | - Wei Huang
- Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, #269 Jixi Road, Hefei, Anhui, China
| | - Jun Wang
- Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, #269 Jixi Road, Hefei, Anhui, China
| | - Yunpeng Wan
- Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, #269 Jixi Road, Hefei, Anhui, China
| | - Meng Li
- Department of Orthopaedics, The First Affiliated Hospital of University of Science and Technology of China, #17 Lujiang Raod, Hefei, Anhui, China
| | - Yiqun Pang
- Department of Radiology, The First Affiliated Hospital of University of Science and Technology of China, #17 Lujiang Raod, Hefei, Anhui, China
| | - Zongsheng Yin
- Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, #269 Jixi Road, Hefei, Anhui, China.
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60
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Chin KY, Wong SK, Japar Sidik FZ, Abdul Hamid J, Abas NH, Mohd Ramli ES, Afian Mokhtar S, Rajalingham S, Ima Nirwana S. The Effects of Annatto Tocotrienol Supplementation on Cartilage and Subchondral Bone in an Animal Model of Osteoarthritis Induced by Monosodium Iodoacetate. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16162897. [PMID: 31412648 PMCID: PMC6720523 DOI: 10.3390/ijerph16162897] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 08/08/2019] [Accepted: 08/09/2019] [Indexed: 12/18/2022]
Abstract
Osteoarthritis is a degenerative joint disease which primarily affects the articular cartilage and subchondral bones. Since there is an underlying localized inflammatory component in the pathogenesis of osteoarthritis, compounds like tocotrienol with anti-inflammatory properties may be able to retard its progression. This study aimed to determine the effects of oral tocotrienol supplementation on the articular cartilage and subchondral bone in a rat model of osteoarthritis induced by monosodium iodoacetate (MIA). Thirty male Sprague-Dawley rats (three-month-old) were randomized into five groups. Four groups were induced with osteoarthritis (single injection of MIA at week 0) and another served as the sham group. Three of the four groups with osteoarthritis were supplemented with annatto tocotrienol at 50, 100 and 150 mg/kg/day orally for five weeks. At week 5, all rats were sacrificed, and their tibial-femoral joints were harvested for analysis. The results indicated that the groups which received annatto tocotrienol at 100 and 150 mg/kg/day had lower histological scores and cartilage remodeling markers. Annatto tocotrienol at 150 mg/kg/day significantly lowered the osteocalcin levels and osteoclast surface of subchondral bone. In conclusion, annatto tocotrienol may potentially retard the progression of osteoarthritis. Future studies to confirm its mechanism of joint protection should be performed.
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Affiliation(s)
- Kok-Yong Chin
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras 56000, Malaysia.
| | - Sok Kuan Wong
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras 56000, Malaysia
| | | | - Juliana Abdul Hamid
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras 56000, Malaysia
| | - Nurul Hafizah Abas
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras 56000, Malaysia
| | - Elvy Suhana Mohd Ramli
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras 56000, Malaysia
| | - Sabarul Afian Mokhtar
- Department of Orthopedics and Traumatology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras 56000, Malaysia
| | - Sakthiswary Rajalingham
- Department of Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras 56000, Malaysia
| | - Soelaiman Ima Nirwana
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras 56000, Malaysia
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Lu N, Malemud CJ. Extracellular Signal-Regulated Kinase: A Regulator of Cell Growth, Inflammation, Chondrocyte and Bone Cell Receptor-Mediated Gene Expression. Int J Mol Sci 2019; 20:ijms20153792. [PMID: 31382554 PMCID: PMC6696446 DOI: 10.3390/ijms20153792] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/15/2019] [Accepted: 07/23/2019] [Indexed: 12/17/2022] Open
Abstract
Extracellular signal-regulated kinase (ERK) is a member of the mitogen-activated protein kinase family of signaling molecules. ERK is predominantly found in two forms, ERK1 (p44) and ERK2 (p42), respectively. There are also several atypical forms of ERK, including ERK3, ERK4, ERK5 and ERK7. The ERK1/2 signaling pathway has been implicated in many and diverse cellular events, including proliferation, growth, differentiation, cell migration, cell survival, metabolism and transcription. ERK1/2 is activated (i.e., phosphorylated) in the cytosol and subsequently translocated to the nucleus, where it activates transcription factors including, but not limited to, ETS, c-Jun, and Fos. It is not surprising that the ERK1/2 signaling cascade has been implicated in many pathological conditions, namely, cancer, arthritis, chronic inflammation, and osteoporosis. This narrative review examines many of the cellular events in which the ERK1/2 signaling cascade plays a critical role. It is anticipated that agents designed to inhibit ERK1/2 activation or p-ERK1/2 activity will be developed for the treatment of those diseases characterized by dysregulated gene expression through ERK1/2 activation.
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Affiliation(s)
- Nathan Lu
- Department of Medicine, Division of Rheumatic Diseases, Case Western Reserve University School of Medicine, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Charles J Malemud
- Department of Medicine, Division of Rheumatic Diseases, Case Western Reserve University School of Medicine, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA.
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Ma YJ, Jerban S, Carl M, Wan L, Guo T, Jang H, Bydder GM, Chang EY, Du J. Imaging of the region of the osteochondral junction (OCJ) using a 3D adiabatic inversion recovery prepared ultrashort echo time cones (3D IR-UTE-cones) sequence at 3 T. NMR IN BIOMEDICINE 2019; 32:e4080. [PMID: 30794338 PMCID: PMC7895481 DOI: 10.1002/nbm.4080] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 01/16/2019] [Accepted: 01/18/2019] [Indexed: 05/18/2023]
Abstract
The purpose of this study is to develop a 3D adiabatic inversion recovery prepared ultrashort echo time Cones (3D IR-UTE-Cones) sequence for high resolution and contrast imaging of the region of osteochondral junction (OCJ) of human knee joint using a clinical 3 T scanner. A feasibility study on direct imaging of the OCJ region was performed on a human patellar cartilage sample and on eight cadaveric knee joints using T1 -weighted, proton density (PD)-weighted and short-T2 -weighted 3D IR-UTE-Cones sequences. Contrast to noise ratio was measured to evaluate the effectiveness of the 3D IR-UTE-Cones sequences for selective imaging of the OCJ region. Computed tomography imaging was performed in parallel for the cadaveric knee joints. The optimized T1 -weighted 3D IR-UTE-Cones sequence was used to image the knee joints of eight healthy volunteers and six patients with osteoarthritis (OA) to evaluate morphological changes in the OCJ region. Clinical PD- and T2 -weighted FSE sequences were also performed for comparison. The T1 -weighted 3D IR-UTE-Cones sequence showed high resolution and contrast bright band of the normal OCJ region in the cadaveric joints. Normal OCJ appearances were also seen in healthy volunteers. Abnormal OCJ regions, manifested as ill-defined, focal loss or non-visualization of the high intensity band adjacent to the subchondral bone plate, were observed in the knee joints of both ex vivo and in vivo OA patients. The 3D IR-UTE-Cones sequence can image OCJ regions ex vivo and in vivo, with abnormalities depicted with high resolution and contrast. The technique may be useful for demonstrating involvement of OCJ regions in early OA.
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Affiliation(s)
- Ya-Jun Ma
- Department of Radiology, University of California, San Diego, CA
| | - Saeed Jerban
- Department of Radiology, University of California, San Diego, CA
| | | | - Lidi Wan
- Department of Radiology, University of California, San Diego, CA
| | - Tan Guo
- Department of Radiology, University of California, San Diego, CA
| | - Hyungseok Jang
- Department of Radiology, University of California, San Diego, CA
| | - Graeme M Bydder
- Department of Radiology, University of California, San Diego, CA
| | - Eric Y Chang
- Department of Radiology, University of California, San Diego, CA
- Radiology Service, VA San Diego Healthcare System, San Diego, CA
| | - Jiang Du
- Department of Radiology, University of California, San Diego, CA
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63
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Hu Y, Li S, Zou Y. Knockdown of LncRNA H19 Relieves LPS-Induced Damage by Modulating miR-130a in Osteoarthritis. Yonsei Med J 2019; 60:381-388. [PMID: 30900425 PMCID: PMC6433564 DOI: 10.3349/ymj.2019.60.4.381] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 12/21/2018] [Accepted: 12/29/2018] [Indexed: 12/11/2022] Open
Abstract
PURPOSE Osteoarthritis (OA) is a commonly occurring illness without a definitive cure, at present. Long non-coding RNAs (lncRNAs) have been widely confirmed to be involved in the modulation of OA progression. This study aimed to investigate the role and mechanism of lncRNA H19 in OA. MATERIALS AND METHODS Abundances of H19 and microRNA-130a (miR-130a) in lipopolysaccharide (LPS)-treated C28/I2 cells were measured by reverse-transcription quantitative PCR (RT-qPCR). CCK-8 and flow cytometry analyses were carried out to assess cell viability and apoptosis. Starbase online software was used to predict the putative binding sites between H19 and miR-130a. Luciferase reporter, RNA pull down, and RT-qPCR were performed to analyze the true interaction between H19 and miR-130a. RESULTS A notably dose-dependent elevation of H19 levels was observed in LPS-treated C28/I2 cells. Knockdown of H19 ameliorated the injury of LPS-induced C28/I2 cells, reflected by induced viability, decreased apoptosis, and reduced inflammatory factor secretions. Moreover, H19 negatively regulated the expression of miR-130a via acting as a molecular sponge for miR-130a. The stimulatory effects of H19 on cell damage were abolished following the restoration of miR-130a. CONCLUSION LncRNA H19 aggravated the injury of LPS-induced C28/I2 cells by sponging miR-130a, hinting a novel regulatory mechanism and a potential therapeutic target for OA.
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Affiliation(s)
- Yi Hu
- Department of Orthopedics, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
- Department of Orthopedics, Chongqing Dongnan Hospital, Chongqing, China
| | - Sukai Li
- Department One of Orthopedics, Dianjiang People's Hospital of Chongqing, Dianjiang County, Chongqing, China
| | - Yonggen Zou
- Department of Orthopedics, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China.
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Abstract
Bone tissue is comprised of a collagen-rich matrix containing non-collagenous organic compounds, strengthened by mineral crystals. Bone strength reflects the amount and structure of bone, as well as its quality. These qualities are determined and maintained by osteoblasts (bone-forming cells) and osteoclasts (bone-resorbing cells) on the surface of the bone and osteocytes embedded within the bone matrix. Bone development and growth also involves cartilage cells (chondrocytes). These cells do not act in isolation, but function in a coordinated manner, including co-ordination within each lineage, between the cells of bone, and between these cells and other cell types within the bone microenvironment. This chapter will briefly outline the cells of bone, their major functions, and some communication pathways responsible for controlling bone development and remodeling.
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Affiliation(s)
- Niloufar Ansari
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Natalie A Sims
- Bone Biology and Disease Unit, St. Vincent's Institute of Medical Research, Melbourne, VIC, Australia.
- Department of Medicine, The University of Melbourne, St. Vincent's Hospital, Melbourne, VIC, Australia.
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65
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Lee JH, Luo X, Ren X, Tan TC, Smith RAA, Swaminathan K, Sekar S, Bhakoo K, Nurcombe V, Hui JH, Cool SM. A Heparan Sulfate Device for the Regeneration of Osteochondral Defects. Tissue Eng Part A 2018; 25:352-363. [PMID: 30351222 DOI: 10.1089/ten.tea.2018.0171] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
IMPACT STATEMENT Repairing damaged joint cartilage remains a significant challenge. Treatment involving microfracture, tissue grafting, or cell therapy provides some benefit, but seldom regenerates lost articular cartilage. Providing a point-of-care solution that is cell and tissue free has the potential to transform orthopedic treatment for such cases. Glycosaminoglycans such as heparan sulfate (HS) are well suited for this purpose because they provide a matrix that enhances the prochondrogenic activities of growth factors normally found at sites of articular damage. In this study, we show the potential of a novel HS device, which is free of exogenous cells or growth factors, in regenerating osteochondral defects.
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Affiliation(s)
- Jonathan H Lee
- 1 NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Centre for Life Sciences (CeLS), Singapore.,2 Glycotherapeutics Group, Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Xiaoman Luo
- 2 Glycotherapeutics Group, Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Xiafei Ren
- 3 Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Tuan Chun Tan
- 2 Glycotherapeutics Group, Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Raymond A A Smith
- 2 Glycotherapeutics Group, Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | | | - Sakthivel Sekar
- 5 Translational Molecular Imaging Group, Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Kishore Bhakoo
- 5 Translational Molecular Imaging Group, Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Victor Nurcombe
- 2 Glycotherapeutics Group, Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Singapore.,6 Lee Kong Chian School of Medicine, Nanyang Technological University-Imperial College, Singapore
| | - James H Hui
- 3 Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Simon M Cool
- 2 Glycotherapeutics Group, Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Singapore.,3 Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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66
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Chen YJ, Chang WA, Wu LY, Hsu YL, Chen CH, Kuo PL. Systematic Analysis of Transcriptomic Profile of Chondrocytes in Osteoarthritic Knee Using Next-Generation Sequencing and Bioinformatics. J Clin Med 2018; 7:E535. [PMID: 30544699 PMCID: PMC6306862 DOI: 10.3390/jcm7120535] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 12/05/2018] [Accepted: 12/07/2018] [Indexed: 12/28/2022] Open
Abstract
The phenotypic change of chondrocytes and the interplay between cartilage and subchondral bone in osteoarthritis (OA) has received much attention. Structural changes with nerve ingrowth and vascular penetration within OA cartilage may contribute to arthritic joint pain. The aim of this study was to identify differentially expressed genes and potential miRNA regulations in OA knee chondrocytes through next-generation sequencing and bioinformatics analysis. Results suggested the involvement of SMAD family member 3 (SMAD3) and Wnt family member 5A (WNT5A) in the growth of blood vessels and cell aggregation, representing features of cartilage damage in OA. Additionally, 26 dysregulated genes with potential miRNA⁻mRNA interactions were identified in OA knee chondrocytes. Myristoylated alanine rich protein kinase C substrate (MARCKS), epiregulin (EREG), leucine rich repeat containing 15 (LRRC15), and phosphodiesterase 3A (PDE3A) expression patterns were similar among related OA cartilage, subchondral bone and synovial tissue arrays in Gene Expression Omnibus database. The Ingenuity Pathway Analysis identified MARCKS to be associated with the outgrowth of neurite, and novel miRNA regulations were proposed to play critical roles in the pathogenesis of the altered OA knee joint microenvironment. The current findings suggest new perspectives in studying novel genes potentially contributing to arthritic joint pain in knee OA, which may assist in finding new targets for OA treatment.
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Affiliation(s)
- Yi-Jen Chen
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Physical Medicine and Rehabilitation, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
| | - Wei-An Chang
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Division of Pulmonary and Critical Care Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
| | - Ling-Yu Wu
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Ya-Ling Hsu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Chia-Hsin Chen
- Department of Physical Medicine and Rehabilitation, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
- Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Po-Lin Kuo
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
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67
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Wang Y, Chen G, Yan J, Chen X, He F, Zhu C, Zhang J, Lin J, Pan G, Yu J, Pei M, Yang H, Liu T. Upregulation of SIRT1 by Kartogenin Enhances Antioxidant Functions and Promotes Osteogenesis in Human Mesenchymal Stem Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:1368142. [PMID: 30116472 PMCID: PMC6079379 DOI: 10.1155/2018/1368142] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 05/25/2018] [Accepted: 06/10/2018] [Indexed: 12/29/2022]
Abstract
Osteoarthritis is a chronic degenerative joint disease involving both articular cartilage and subchondral bone. Kartogenin (KGN) was recently identified to improve in vivo cartilage repair; however, its effect on bone formation is unknown. The aim of this study was to investigate the effect of KGN on antioxidant properties and osteogenic differentiation of bone marrow-derived mesenchymal stem cells (BM-MSCs). Human BM-MSCs were treated with KGN at concentrations ranging from 10-8 M to 10-6 M. Our results indicated that KGN improved cell proliferation and attenuated intracellular reactive oxygen species. The levels of antioxidant enzymes and osteogenic differentiation of BM-MSCs were enhanced by KGN in a dose-dependent manner. Furthermore, KGN-treated BM-MSCs showed upregulation of silent information regulator type 1 (SIRT1) and increased phosphorylation of adenosine 5'-monophosphate-activated protein kinase (AMPK), indicating that KGN activated the AMPK-SIRT1 signaling pathway in BM-MSCs. Inhibition of SIRT1 by nicotinamide reversed the antioxidant effect of KGN on BM-MSCs and suppressed osteogenic differentiation. In conclusion, our results demonstrated that KGN improved intracellular antioxidant properties and promoted osteogenic differentiation of BM-MSCs by activating the AMPK-SIRT1 signaling pathway. Thus, KGN may have the potential for not only articular cartilage repair but also the clinical application of MSCs in bone tissue engineering.
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Affiliation(s)
- Yifan Wang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Guangdong Chen
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Jinku Yan
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Xi Chen
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou 215123, China
| | - Fan He
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Caihong Zhu
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Junxin Zhang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Jun Lin
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
| | - Guoqing Pan
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jia Yu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics and Division of Exercise Physiology, West Virginia University, Morgantown, WV 26506, USA
| | - Huilin Yang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Tao Liu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
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Francisco V, Pino J, Campos-Cabaleiro V, Ruiz-Fernández C, Mera A, Gonzalez-Gay MA, Gómez R, Gualillo O. Obesity, Fat Mass and Immune System: Role for Leptin. Front Physiol 2018; 9:640. [PMID: 29910742 PMCID: PMC5992476 DOI: 10.3389/fphys.2018.00640] [Citation(s) in RCA: 243] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 05/11/2018] [Indexed: 12/13/2022] Open
Abstract
Obesity is an epidemic disease characterized by chronic low-grade inflammation associated with a dysfunctional fat mass. Adipose tissue is now considered an extremely active endocrine organ that secretes cytokine-like hormones, called adipokines, either pro- or anti-inflammatory factors bridging metabolism to the immune system. Leptin is historically one of most relevant adipokines, with important physiological roles in the central control of energy metabolism and in the regulation of metabolism-immune system interplay, being a cornerstone of the emerging field of immunometabolism. Indeed, leptin receptor is expressed throughout the immune system and leptin has been shown to regulate both innate and adaptive immune responses. This review discusses the latest data regarding the role of leptin as a mediator of immune system and metabolism, with particular emphasis on its effects on obesity-associated metabolic disorders and autoimmune and/or inflammatory rheumatic diseases.
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Affiliation(s)
- Vera Francisco
- The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Servizo Galego de Saude and Instituto de Investigación Sanitaria de Santiago, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Jesús Pino
- The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Servizo Galego de Saude and Instituto de Investigación Sanitaria de Santiago, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Victor Campos-Cabaleiro
- The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Servizo Galego de Saude and Instituto de Investigación Sanitaria de Santiago, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Clara Ruiz-Fernández
- The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Servizo Galego de Saude and Instituto de Investigación Sanitaria de Santiago, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Antonio Mera
- Servizo Galego de Saude, Division of Rheumatology, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Miguel A Gonzalez-Gay
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Hospital Universitario Marqués de Valdecilla, Universidad de Cantabria and IDIVAL, Santander, Spain
| | - Rodolfo Gómez
- Musculoskeletal Pathology Group, Servizo Galego de Saude and Instituto de Investigación Sanitaria de Santiago, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Oreste Gualillo
- The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Servizo Galego de Saude and Instituto de Investigación Sanitaria de Santiago, Santiago University Clinical Hospital, Santiago de Compostela, Spain
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69
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Valdes AM, Stocks J. Osteoarthritis and Ageing. EUROPEAN MEDICAL JOURNAL 2018. [DOI: 10.33590/emj/10313855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Ageing is a complex process of accumulation of molecular, cellular, and organ damage, leading to loss of function and increased vulnerability to disease and death, the rate and extent of which varies among individuals. Osteoarthritis (OA) is not only the most common joint disease, but is also one of the major causes of disability in people aged >65 years and is accompanied by comorbid conditions, increased mortality, and decreased quality of life. One of the major risk factors for OA is ageing. However, OA itself may be involved in the biological ageing process. This is likely to be in part a direct involvement, by contributing levels of systemic inflammation and sharing molecular pathways with biological ageing, such as mitochondrial damage leading to cell senescence. Although OA is not considered an inflammatory form of arthritis, there is evidence of subclinical low-grade inflammation in the whole joint and inflammatory processes play a key role in the disease pathogenesis. For instance, there is synovial inflammation (e.g., following injury), mechanically derived inflammation present due to biomechanical overloading of a joint, and systemic inflammation resulting from obesity. Systemic inflammation is often associated with frailty, and having a high concentration of inflammatory markers is predictive of incident frailty, some of which are known to increase with age and correlate with pain. In addition, OA may also contribute indirectly to biological ageing via the disability and pain resulting from it. Further research into the exact process linking OA and biological ageing, including frailty, is needed.
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Affiliation(s)
- Ana M. Valdes
- National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham, UK; Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK; Division of Rheumatology, Orthopaedics and Dermatology, School of Medicine, University of Nottingham, Nottingham, UK
| | - Joanne Stocks
- National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham, UK; Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK; Division of Rheumatology, Orthopaedics and Dermatology, School of Medicine, University of Nottingham, Nottingham, UK
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70
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Vaysbrot EE, Osani MC, Musetti MC, McAlindon TE, Bannuru RR. Are bisphosphonates efficacious in knee osteoarthritis? A meta-analysis of randomized controlled trials. Osteoarthritis Cartilage 2018; 26:154-164. [PMID: 29222056 DOI: 10.1016/j.joca.2017.11.013] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 10/25/2017] [Accepted: 11/27/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To clarify the effects of bisphosphonates in knee osteoarthritis (OA) using an up-to-date meta-analysis of randomized controlled trials (RCTs). DESIGN The protocol is registered in PROSPERO (CRD42017073449). We searched MEDLINE, EMBASE, Google Scholar, Web of Science, and Cochrane Database from inception until August 2017. We included only RCTs comparing any bisphosphonates vs placebo in knee OA patients and reporting validated pain and function scales, radiographic progression, and adverse events (AEs) outcomes. We excluded studies using active comparators or concomitant medications besides non-steroidal anti-inflammatory drugs (NSAIDs) and acetaminophen. We calculated standardized mean differences (SMDs) to account for variation in outcome scales. Random effects meta-analyses were performed. RESULTS We included seven RCTs (3013 patients, 69% female); most patients (N = 2767) received oral risedronate. No pain or function outcomes, regardless of dose, route, time point or measuring instrument, revealed statistically significant results (end of trial pain SMD = -0.16 [95% confidence interval (CI): -0.34, 0.02]). Similarly, we found no statistically significant effect on radiographic progression (risk ratio = 0.98 [95% CI: 0.77, 1.26]). One small RCT in patients with bone marrow lesions (BMLs) suggested a reduction in BML size at 6 months. Bisphosphonates displayed good tolerability, with no statistically significant differences in AE outcomes vs placebo. CONCLUSIONS Contrary to prior reviews, our analysis showed that bisphosphonates neither provide symptomatic relief nor defer radiographic progression in knee OA. However, these agents may still be beneficial in certain subsets of patients who display high rates of subchondral bone turnover. Future studies should be directed at defining such OA subsets and investigating the effects of bisphosphonates in those patients.
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Affiliation(s)
- E E Vaysbrot
- Center for Treatment Comparison and Integrative Analysis (CTCIA), Division of Rheumatology, Tufts Medical Center, 800 Washington Street, 02111 Boston, MA, USA
| | - M C Osani
- Center for Treatment Comparison and Integrative Analysis (CTCIA), Division of Rheumatology, Tufts Medical Center, 800 Washington Street, 02111 Boston, MA, USA
| | - M-C Musetti
- Center for Treatment Comparison and Integrative Analysis (CTCIA), Division of Rheumatology, Tufts Medical Center, 800 Washington Street, 02111 Boston, MA, USA
| | - T E McAlindon
- Center for Treatment Comparison and Integrative Analysis (CTCIA), Division of Rheumatology, Tufts Medical Center, 800 Washington Street, 02111 Boston, MA, USA
| | - R R Bannuru
- Center for Treatment Comparison and Integrative Analysis (CTCIA), Division of Rheumatology, Tufts Medical Center, 800 Washington Street, 02111 Boston, MA, USA.
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71
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Zhang Q, Yin ZS, Zhang FW, Cao K, Sun HY. CTHRC1 mediates IL‑1β‑induced apoptosis in chondrocytes via JNK1/2 signaling. Int J Mol Med 2018; 41:2270-2278. [PMID: 29393342 DOI: 10.3892/ijmm.2018.3403] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 01/08/2018] [Indexed: 11/05/2022] Open
Abstract
Osteoarthritis (OA), also known as degenerative joint disease or degenerative arthritis, is characterized by chondrocyte apoptosis. The aim of the present study was to investigate the effects of collagen triple helix repeat containing 1 (CTHRC1) and the c‑Jun N‑terminal kinase (JNK) 1/2 inhibitor SP600125 on rat chondrocytes cultured in vitro with interleukin (IL)‑1β. Chondrocytes were treated with different doses of IL‑1β and cell viability and CTHRC1 expression were assessed using Cell Counting Kit‑8 and western blot assays, respectively. In separate experiments, chondrocytes were treated with CTHRC1‑expressing constructs (pLVX‑Puro‑CTHRC1) and/or SP600125, or IL‑1β with either CTHRC1 short hairpin (sh)RNA constructs (shNRA‑CTHRC1) or SP600125. The expression of CTHRC1, B‑cell lymphoma (Bcl)‑2, Bcl‑2‑associated X protein (Bax), cleaved caspase‑3, poly ADP ribose polymerase (PARP)‑1 and matrix metalloproteinase (MMP)‑13 was measured using reverse transcription‑quantitative polymerase chain reaction and western blotting assays. A Cell Counting Kit‑8 assay was performed to examine cell viability. Annexin V/propidium iodide staining and flow cytometry assays were used to detect chondrocyte apoptosis. The expression of JNK1/2 and phosphorylated JNK1/2 was measured using western blotting. CTHRC1 was highly expressed in patients with OA compared with normal controls. IL‑1β treatment (5, 10 and 20 ng/ml) increased the protein expression of CTHRC1 in a dose‑dependent manner and decreased the viability of chondrocytes in a time‑dependent manner. pLVX‑Puro‑CTHRC1 mimics the effect of IL‑1β on chondrocyte apoptosis and JNK1/2 activity, and this is reversed by SP600125 treatment. However, transfection with shRNA‑CTHRC1 or treatment with SP600125 inhibited IL‑1β‑induced cell apoptosis and JNK1/2 activation. These results indicate that CTHRC1 downregulation may protect chondrocytes from IL‑1β‑induced apoptosis by inactivating the JNK1/2 pathway.
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Affiliation(s)
- Qi Zhang
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Zong-Sheng Yin
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Fu-Wen Zhang
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Kun Cao
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - He-Yan Sun
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
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Lo GH, Merchant MG, Driban JB, Duryea J, Price LL, Eaton CB, McAlindon TE. Knee Alignment Is Quantitatively Related to Periarticular Bone Morphometry and Density, Especially in Patients With Osteoarthritis. Arthritis Rheumatol 2018; 70:212-221. [PMID: 28940779 DOI: 10.1002/art.40325] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 09/13/2017] [Indexed: 01/16/2023]
Abstract
OBJECTIVE Static alignment influences knee loading and predicts osteoarthritis (OA) progression. Periarticular bone is important in dispersing forces across the knee, and there is substantial evidence for molecular crosstalk between cartilage and subchondral bone. The aim of this study was to evaluate the relationship between periarticular trabecular bone morphology and bone mineral density (BMD) and knee alignment in OA. METHODS This was a cross-sectional analysis of participants in the Osteoarthritis Initiative Bone Ancillary Study. Dual x-ray absorptiometry (DXA) was performed to measure tibial periarticular bone mineral density (paBMD). Magnetic resonance imaging of knee trabecular bone was performed to calculate the apparent bone volume fraction (aBVF), apparent trabecular number (aTbN), apparent trabecular spacing (aTbSp), and apparent trabecular thickness (aTbTh). Static alignment was assessed by measuring the hip-knee-ankle (HKA) angle on long-limb films. RESULTS The study group comprised 436 participants (mean ± SD age 65.4 ± 9.2 years, 46% female, mean ± SD body mass index 29.6 ± 4.6 kg/m2 ), 71% of whom had OA. Correlations between the HKA angle and medial:lateral paBMD, medial paBMD, aBVF, aTbN, aTbTh, and aTbSp were -0.63, -0.34, -0.29, -0.32, -0.22, and 0.30, respectively. More varus alignment was associated with higher medial:lateral paBMD, medial paBMD, aBVF, aTbN, aTbTh, and lower aTbSp. In OA knees, the results were more pronounced. In non-OA knees, the most consistent association was with medial:lateral paBMD. CONCLUSION Static alignment was associated with medial:lateral paBMD in all knees and with medial paBMD and trabecular morphometry in OA knees only. Aberrant knee loading may lead to increased relative subchondral bone density, which is partly related to a higher aBVF and a greater number of thicker trabeculae with smaller intertrabecular spacing. Knee DXA may be a useful early biomarker of knee OA.
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Affiliation(s)
- Grace H Lo
- Baylor College of Medicine and Houston VA Health Services Research & Development Center for Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey Medical Center, Houston, Texas
| | - Mehveen G Merchant
- Nova Scotia Health Authority, Dalhousie University, Halifax, Nova Scotia, Canada
| | | | | | - Lori Lyn Price
- Tufts Medical Center and Tufts University, Boston, Massachusetts
| | - Charles B Eaton
- Memorial Hospital of Rhode Island and Alpert Medical School of Brown University, Pawtucket, Rhode Island
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Liu C, Liu C, Ren X, Si L, Shen H, Wang Q, Yao W. Quantitative evaluation of subchondral bone microarchitecture in knee osteoarthritis using 3T MRI. BMC Musculoskelet Disord 2017; 18:496. [PMID: 29179754 PMCID: PMC5704369 DOI: 10.1186/s12891-017-1865-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 11/20/2017] [Indexed: 01/17/2023] Open
Abstract
Background Osteoarthritis (OA) is now increasingly recognized as being related to the whole joint instead of the cartilage alone. In particular, the importance of subchondral bone in OA pathogenesis has drawn a lot of interest. The aim of this study is to investigate subchondral bone microstructural features in two femoral condyles of human knee osteoarthritis. Methods Eighty subjects were enrolled in our study and divided into three groups: without OA (group 0), mild OA (group 1), and severe OA (group 2). Sagittal 3D Balanced Fast Field Echo (3D–FFE) images were obtained by 3T MRI to quantify trabecular bone structure, and sagittal FatSat 3D Fast Field Echo (3D–FFE) images were acquired to assess cartilage thickness. Trabecular bone parameters, including bone volume fraction (BVF), erosion index (EI) and the trabecular plate-to-rod ratio (SCR), and trabecular thickness were evaluated using digital topological analysis. Subchondral bone and cartilage parameters between different groups and different locations were compared, and their correlations were analyzed. Results Within two femoral condyles, subchondral bone structure was deteriorated in mild OA, showing a lower BVF (−0.011 to −0.014 P < 0.001), a higher EI (0.346 to 0.310 P < 0.001), a lower SCR (−0.581 to −0.542 P < 0.001)) and lower trabecular thickness (−6.588 to −4.759 P < 0.05). In severe OA, BVF was further decreased, but EI, SCR and trabecular thickness showed no significant difference than mild OA(P > 0.05). Moreover, there was a lower BVF, SCR and higher EI in the medial femoral condyle in each group. Interestingly, cartilage attrition mainly occurred in the medial femoral condyle. Medial cartilage thickness was not only positively correlated with the ipsilateral femoral BVF (r = 0.321 P = 0.004) but also with the opposite femoral BVF (r = 0.270 P = 0.015). Conclusions Our results indicated that deterioration in the trabecular bone structure in both femoral condyles could more sensitively reveal early OA, and BVF could be a better biomarker to evaluate OA severity.
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Affiliation(s)
- Chenglei Liu
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Chang Liu
- Med-X Research Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Xvhua Ren
- Med-X Research Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Liping Si
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Hao Shen
- Department of Joint Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Qian Wang
- Med-X Research Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Weiwu Yao
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
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Extracellular Vesicles from Adipose-Derived Mesenchymal Stem Cells Downregulate Senescence Features in Osteoarthritic Osteoblasts. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:7197598. [PMID: 29230269 PMCID: PMC5694590 DOI: 10.1155/2017/7197598] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Accepted: 10/03/2017] [Indexed: 12/25/2022]
Abstract
Osteoarthritis (OA) affects all articular tissues leading to pain and disability. The dysregulation of bone metabolism may contribute to the progression of this condition. Adipose-derived mesenchymal stem cells (ASC) are attractive candidates in the search of novel strategies for OA treatment and exert anti-inflammatory and cytoprotective effects on cartilage. Chronic inflammation in OA is a relevant factor in the development of cellular senescence and joint degradation. In this study, we extend our previous observations of ASC paracrine effects to study the influence of conditioned medium and extracellular vesicles from ASC on senescence induced by inflammatory stress in OA osteoblasts. Our results in cells stimulated with interleukin- (IL-) 1β indicate that conditioned medium, microvesicles, and exosomes from ASC downregulate senescence-associated β-galactosidase activity and the accumulation of γH2AX foci. In addition, they reduced the production of inflammatory mediators, with the highest effect on IL-6 and prostaglandin E2. The control of mitochondrial membrane alterations and oxidative stress may provide a mechanism for the protective effects of ASC in OA osteoblasts. We have also shown that microvesicles and exosomes mediate the paracrine effects of ASC. Our study suggests that correction of abnormal osteoblast metabolism by ASC products may contribute to their protective effects.
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Xu X, Lv H, Li X, Su H, Zhang X, Yang J. Danshen attenuates cartilage injuries in osteoarthritis in vivo and in vitro by activating JAK2/STAT3 and AKT pathways. Exp Anim 2017; 67:127-137. [PMID: 29093428 PMCID: PMC5955744 DOI: 10.1538/expanim.17-0062] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Articular cartilage degradation is a main feature of osteoarthritis (OA). The effects of Danshen, a traditional Chinese herb, in mitigating cartilage damage have been reported before. This study was conducted to investigate the effects of Danshen on cartilage injuries in OA. Rabbit OA models were established by surgical destabilization of the medial meniscus and the anterior and posterior cruciate ligaments in the left knee joint. Injection of Danshen into the articular cavity attenuated OA cartilage destruction in vivo. The levels of phosphorylated Janus kinase 2 (JAK2) and phosphorylated signal transducer and activator of transcription 3 (STAT3) were decreased in osteoarthritic cartilage, while they were rescued upon Danshen treatment. Furthermore, chondrocytes isolated from normal rabbit cartilage were exposed to 2 mM sodium nitroprusside (SNP) to establish an OA model in vitro. We found that the oxidative stress and chondrocyte apoptosis induced by SNP were suppressed by Danshen. The phosphorylation levels of JAK2 and STAT3 were decreased in response to SNP treatment, whereas they were rescued by Danshen. Additionally, AG490, a specific JAK2 inhibitor, counteracted the anti-apoptotic effect of Danshen. The phosphorylation level of protein kinase B (AKT) was also altered in response to SNP and reversed by Danshen. The anti-apoptotic effect of Danshen was counteracted by AKT pathway inhibitor LY194002. Taken together, Danshen attenuates OA cartilage destruction by regulating the JAK2/STAT3 and AKT signaling pathways.
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Affiliation(s)
- Xilin Xu
- Third Department of Orthopaedics and Traumatology, The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, 411 Gogoli Street, Nangang District, Harbin 150001, P.R. China
| | - Hang Lv
- Third Department of Orthopaedics and Traumatology, The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, 411 Gogoli Street, Nangang District, Harbin 150001, P.R. China
| | - Xiaodong Li
- Third Department of Orthopaedics and Traumatology, The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, 411 Gogoli Street, Nangang District, Harbin 150001, P.R. China
| | - Hui Su
- Third Department of Orthopaedics and Traumatology, The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, 411 Gogoli Street, Nangang District, Harbin 150001, P.R. China
| | - Xiaofeng Zhang
- President Office, Heilongjiang University of Chinese Medicine, 24 Heping Road, Xiangfang District, Harbin 150040, P.R. China
| | - Jun Yang
- Department of Radiology, The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, 411 Gogoli Street, Nangang District, Harbin 150001, P.R. China
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Eo SH, Kim SJ. Rosmarinic acid induces rabbit articular chondrocyte differentiation by decreases matrix metalloproteinase-13 and inflammation by upregulating cyclooxygenase-2 expression. J Biomed Sci 2017; 24:75. [PMID: 28923043 PMCID: PMC5603189 DOI: 10.1186/s12929-017-0381-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 09/06/2017] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Matrix metalloproteinases (MMPs) are known to play an important role in the degradation of the extracellular matrix and the pathological progression of osteoarthritis (OA). The natural polyphenolic compound rosmarinic acid (Ros. A) has been shown to suppress the inhibitory activity of matrix metalloproteinases (MMPs). However, the effects of Ros. A on OA have not been investigated. METHODS In the current study, primary articular chondrocytes were cultured from rabbit articular cartilage and treated with Ros. A. Phenotypic characterization was performed by western blotting to assess specific markers, prostaglandin E2 (PGE2) assays, and alcian blue staining to measure sulfated-proteoglycan production. RESULTS We report that in rabbit articular chondrocytes, Ros. A increased type II collagen, sulfated-proteoglycan, cyclooxygenase-2 (COX-2), and PGE2 production in a dose- and time-dependent manner. Furthermore, Ros. A suppressed the expression of MMP-13. In addition, treatment with Ros A activated extracellular signal-regulated kinase (ERK)-1/2 and p38 kinase signaling pathways. Inhibition of MMP-13 enhanced Ros. A-induced type II collagen expression and sulfated-proteoglycan synthesis but COX-2 and PGE2 production were unchanged. Ros. A-mediated up-regulation of ERK phosphorylation was abolished by the MEK inhibitor, PD98059, which prevented induction of the associated inflammatory response. Inhibition of p38 kinase with SB203580 enhanced the increase in type II collagen expression via Ros. A-mediated down-regulation of MMP-13. CONCLUSIONS Results suggest that ERK-1/2 regulates Ros. A-induced inflammation and that p38 regulates differentiation by inhibiting MMP-13 in rabbit articular chondrocytes.
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Affiliation(s)
- Seong-Hui Eo
- Department of Biological Sciences, College of Natural Sciences, Kongju National University, Gongju, 32588 Republic of Korea
| | - Song Ja Kim
- Department of Biological Sciences, College of Natural Sciences, Kongju National University, Gongju, 32588 Republic of Korea
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Lu D, Qu J, Sun L, Li Q, Ling H, Yang N, Ma T, Wang Q, Li M, Zhang K, Li Z. Ca2+/Mg2+ homeostasis‑related TRPM7 channel mediates chondrocyte hypertrophy via regulation of the PI3K‑Akt signaling pathway. Mol Med Rep 2017; 16:5699-5705. [PMID: 28849029 DOI: 10.3892/mmr.2017.7300] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 02/23/2017] [Indexed: 11/05/2022] Open
Abstract
Chondrocytes are specialized cells that form cartilage tissue, and are able to respond to their osmotic environment and exercise important roles in endochondral ossification via undergoing proliferation, hypertrophy and apoptosis. The transient receptor melastatin potential 7 (TRPM7) cation channel can modulate the intracellular and extracellular levels of Ca2+ and Mg2+, and therefore the cellular osmotic environment. However, the molecular pathways involved in TRPM7‑mediated signal transduction have yet to be elucidated. In the present study, the expression and functionality of TRPM7 were investigated during chondrocyte proliferation and hypertrophy. The ATDC5 mouse cell line was employed and cellular viability was evaluated using the MTT assay, whereas hypertrophy was monitored via evaluating the expression of chondrogenic marker genes and the activity of alkaline phosphatase (ALP). Gene expression of TRPM7 appeared slightly upregulated during the proliferative stages of chondrocyte development, and significantly upregulated during the hypertrophic stages, suggesting the importance of Ca2+/Mg2+ homeostasis for chondrocyte growth. Low extracellular Ca2+/Mg2+ levels significantly reduced the expression of type X collagen, Indian hedgehog homolog (Ihh) and matrix metalloproteinase (MMP)‑13 genes, as well as ALP activity; however, cell viability remained unaffected. Conversely, the gene expression levels of TRPM7 appeared upregulated in ATDC5 cells under low extracellular Ca2+ or Mg2+ conditions. Silencing TRPM7 expression during the chondrocyte differentiation period also reduced type X collagen, Ihh and MMP‑13 gene expression, and ALP activity. Furthermore, the phosphatidylinositol‑4,5‑bisphosphate 3‑kinase (PI3K)‑Akt signaling pathway was activated following TRPM7 overexpression, and inhibited following TRPM7 silencing. Notably, the actions of TRPM7 on chondrocyte hypertrophy were abolished through the inhibition of PI3K‑Akt signaling. The present results suggested that TRPM7 may be involved in Ca2+/Mg2+ homeostasis during chondrocyte hypertrophy, and contribute to endochondral ossification via interacting with the PI3K‑Akt signaling pathway.
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Affiliation(s)
- Daigang Lu
- Department of Orthopedics and Trauma, Xi'an Honghui Hospital, Affiliated to School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Jining Qu
- Department of Orthopedics and Trauma, Xi'an Honghui Hospital, Affiliated to School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Liang Sun
- Department of Orthopedics and Trauma, Xi'an Honghui Hospital, Affiliated to School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Qiang Li
- Department of Orthopedics and Trauma, Xi'an Honghui Hospital, Affiliated to School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Hua Ling
- Department of Orthopedics and Trauma, Xi'an Honghui Hospital, Affiliated to School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Na Yang
- Department of Orthopedics and Trauma, Xi'an Honghui Hospital, Affiliated to School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Teng Ma
- Department of Orthopedics and Trauma, Xi'an Honghui Hospital, Affiliated to School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Qian Wang
- Department of Orthopedics and Trauma, Xi'an Honghui Hospital, Affiliated to School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Ming Li
- Department of Orthopedics and Trauma, Xi'an Honghui Hospital, Affiliated to School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Kun Zhang
- Department of Orthopedics and Trauma, Xi'an Honghui Hospital, Affiliated to School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Zhong Li
- Department of Orthopedics and Trauma, Xi'an Honghui Hospital, Affiliated to School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
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Wang J, Chen L, Jin S, Lin J, Zheng H, Zhang H, Fan H, He F, Ma S, Li Q. Altered expression of microRNA-98 in IL-1β-induced cartilage degradation and its role in chondrocyte apoptosis. Mol Med Rep 2017; 16:3208-3216. [PMID: 28765925 PMCID: PMC5547958 DOI: 10.3892/mmr.2017.7028] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 03/23/2017] [Indexed: 12/28/2022] Open
Abstract
Osteoarthritis (OA) is a multifactorial disease characterized by degeneration of the articular cartilage due to genetic and epigenetic components. The pathogenesis of OA is complex and the mechanism of chondrocyte homeostatic regulation remains to be fully elucidated. Previous studies have demonstrated that microRNAs (miRNAs/miR) contribute to cartilage dysfunction. However, the functional role of miR-98 in interleukin-1β (IL-1β)-induced chondrocyte apoptosis in OA cartilage remains to be investigated. The present study aimed to identify and characterize the expression profile of miR-98 and apoptosis-associated proteins in healthy and OA chondrocytes, and western blot analysis and TUNEL staining were used to evaluate the role of miR-98 in the regulation of chondrocyte apoptosis. The present study demonstrated that miR-98 expression was increased in OA chondrocytes in response to IL-1β stimulation, and the expression levels of apoptosis-associated proteins, including Fas cell surface death receptor, caspase-3, caspase-8 and B-cell lymphoma-2 (Bcl-2)-associated X protein, were also increased in IL-1β-stimulated chondrocytes. In addition, it was revealed that upregulation of miR-98 was accompanied by reduced expression of Bcl-2 following exposure to IL-1β. IL-1β-induced downregulation of Bcl-2 was associated with miR-98-mediated translational repression. Transfection of OA chondrocytes with a miR-98 inhibitor had an inhibitory effect on IL-1β-induced cell apoptosis, increased cell proliferation and upregulated Bcl-2 expression. It is possible that miR-98 inhibited IL-1β-induced chondrocyte apoptosis by modulating Bcl-2 expression levels. The findings of the present study indicated that the effects of miR-98 on chondrocyte apoptosis were induced by regulation of Bcl-2 expression. In addition, the present study confirmed that miR-98 targeted the 3′-untranslated region of Bcl-2. In conclusion, miRNA-coordinated regulation of apoptosis-associated protein expression has been identified in OA chondrocytes following IL-1β induction.
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Affiliation(s)
- Jing Wang
- Department of Rheumatology and Immunology, First People's Hospital of Yunnan, Kunming, Yunnan 650032, P.R. China
| | - Lingqing Chen
- Department of Orthopedics, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Song Jin
- Department of Rheumatology and Immunology, First People's Hospital of Yunnan, Kunming, Yunnan 650032, P.R. China
| | - Jun Lin
- Department of Rheumatology and Immunology, First People's Hospital of Yunnan, Kunming, Yunnan 650032, P.R. China
| | - Hongmei Zheng
- Department of Rheumatology and Immunology, First People's Hospital of Yunnan, Kunming, Yunnan 650032, P.R. China
| | - Hong Zhang
- Department of Rheumatology and Immunology, First People's Hospital of Yunnan, Kunming, Yunnan 650032, P.R. China
| | - Hongtao Fan
- Department of Rheumatology and Immunology, First People's Hospital of Yunnan, Kunming, Yunnan 650032, P.R. China
| | - Fang He
- Department of Rheumatology and Immunology, First People's Hospital of Yunnan, Kunming, Yunnan 650032, P.R. China
| | - Sha Ma
- Department of Rheumatology and Immunology, First People's Hospital of Yunnan, Kunming, Yunnan 650032, P.R. China
| | - Qin Li
- Department of Rheumatology and Immunology, First People's Hospital of Yunnan, Kunming, Yunnan 650032, P.R. China
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Maruotti N, Corrado A, Cantatore FP. Osteoblast role in osteoarthritis pathogenesis. J Cell Physiol 2017; 232:2957-2963. [PMID: 28425564 PMCID: PMC5575507 DOI: 10.1002/jcp.25969] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 04/19/2017] [Indexed: 01/13/2023]
Abstract
Even if osteoarthritis pathogenesis is still poorly understood, numerous evidences suggest that osteoblasts dysregulation plays a key role in osteoarthritis pathogenesis. An abnormal expression of OPG and RANKL has been described in osteoarthritis osteoblasts, which is responsible for abnormal bone remodeling and decreased mineralization. Alterations in genes expression are involved in dysregulation of osteoblast function, bone remodeling, and mineralization, leading to osteoarthritis development. Moreover, osteoblasts produce numerous transcription factors, growth factors, and other proteic molecules which are involved in osteoarthritis pathogenesis.
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Affiliation(s)
- Nicola Maruotti
- Rheumatology Clinic, Department of Medical and Surgical Sciences, University of Foggia Medical School, Foggia, Italy
| | - Addolorata Corrado
- Rheumatology Clinic, Department of Medical and Surgical Sciences, University of Foggia Medical School, Foggia, Italy
| | - Francesco P Cantatore
- Rheumatology Clinic, Department of Medical and Surgical Sciences, University of Foggia Medical School, Foggia, Italy
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Wu J, Ma L, Wu L, Jin Q. Wnt-β-catenin signaling pathway inhibition by sclerostin may protect against degradation in healthy but not osteoarthritic cartilage. Mol Med Rep 2017; 15:2423-2432. [PMID: 28259981 PMCID: PMC5428759 DOI: 10.3892/mmr.2017.6278] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Accepted: 10/04/2016] [Indexed: 12/22/2022] Open
Abstract
The aim of the present study was to determine the regulation of sclerostin (SOST) in osteoarthritis (OA) and its effect on articular cartilage degradation. Human cartilage samples from healthy and OA subjects were assessed by Safranin O staining and immunohistochemistry. Primary chondrocytes were pre‑incubated with 250 ng/ml SOST, 10 ng/ml interleukin‑1‑α (IL‑1α) or a combination of the two. The effects of treatment on the Wnt-β-catenin signaling pathway and cartilage degradation were examined by reverse transcription‑quantitative polymerase chain reaction and western blotting. SOST was detected in the cartilage focal area, demonstrating secretion by osteocytes and chondrocytes. SOST has been identified to inhibit the Wnt-β-catenin signaling pathway by binding to low‑density lipoprotein‑related receptors 5 and 6, and catabolic factors were decreased in healthy chondrocytes. However, SOST did not influence human OA chondrocytes. IL‑1α activated the Wnt-β-catenin signaling pathway and promoted cartilage degradation, which was inhibited by SOST in healthy and OA cartilage. The results of the present study suggested that SOST is important in maintaining the integrity of healthy, but not end‑stage OA, cartilage.
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Affiliation(s)
- Jiang Wu
- Orthopedics Ward 3, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Long Ma
- Orthopedics Ward 3, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Long Wu
- Orthopedics Ward 3, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Qunhua Jin
- Orthopedics Ward 3, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
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Fernández‐Torres J, Martínez‐Nava GA, Gutiérrez‐Ruíz MC, Gomez‐Quiroz LE, Gutiérrez M. Papel da via de sinalização do HIF‐1α na osteoartrite: revisão sistemática. REVISTA BRASILEIRA DE REUMATOLOGIA 2017. [DOI: 10.1016/j.rbr.2016.04.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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Favero M, Perino G, Valente ML, Tiengo C, Ramonda R. Radiological and histological analysis of two replaced interphalangeal joints with active subchondral bone resorption in erosive hand osteoarthritis: a novel mechanism? Skeletal Radiol 2017; 46:385-391. [PMID: 28054155 DOI: 10.1007/s00256-016-2560-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 12/08/2016] [Accepted: 12/19/2016] [Indexed: 02/02/2023]
Abstract
The aim of this study was to describe the histological features of erosive hand osteoarthritis (EHOA), which is considered an aggressive subset of hand osteoarthritis (OA) characterized by severe local inflammation and degeneration of the distal and proximal interphalangeal joints. Two patients with EHOA underwent replacement with a cement-free press fit ceramic prosthesis of a proximal interphalangeal joint (PIPJ). Clinical and radiological data were collected and histological examination was performed. Radiological examination with histological correlation showed complete erosion of the articular cartilage with focal presence of peripheral fibrocartilaginous resurfacing, sclerosis, and remodeling of the exposed bone, osteoclastic activity with resorptive lacunae in the subchondral bone and around degenerative fibromyxoid pseudocysts, coarse trabeculation of the cancellous bone, and marginal osteophytes. The synovial membrane showed non-specific mild hypertrophy and mildly cellular fibromyxoid stroma. The histological findings in patients with EHOA suggest a pathogenesis of cartilage resorption from the subchondral bone, via osteoclastic-mediated activity and formation of periarticular reactive fibrocartilaginous proliferation with partial resurfacing of the articular surface.
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Affiliation(s)
- Marta Favero
- Rheumatology Unit, Department of Medicine-DIMED, University Hospital of Padova, Via Giustiniani, 2, 35128, Padova, Italy.,Laboratory of Immunorheumatology and Tissue Regeneration, Rizzoli Orthopedic Research Institute, Bologna, 40136, Bologna, Italy
| | - Giorgio Perino
- Department of Pathology and Laboratory Medicine, Hospital for Special Surgery, New York, NY, USA
| | - Maria Luisa Valente
- Department of Diagnostic Medical Sciences, Section of Special Pathology, University of Padova, Via Giustiniani, 2, 35128, Padova, Italy
| | - Cesare Tiengo
- Department of Medical and Surgical Specialties, Hand Unit, Institute of Plastic Surgery, University of Padova, Via Giustiniani, 2, 35128, Padova, Italy
| | - Roberta Ramonda
- Rheumatology Unit, Department of Medicine-DIMED, University Hospital of Padova, Via Giustiniani, 2, 35128, Padova, Italy.
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Abella V, Scotece M, Conde J, Pino J, Gonzalez-Gay MA, Gómez-Reino JJ, Mera A, Lago F, Gómez R, Gualillo O. Leptin in the interplay of inflammation, metabolism and immune system disorders. Nat Rev Rheumatol 2017; 13:100-109. [PMID: 28053336 DOI: 10.1038/nrrheum.2016.209] [Citation(s) in RCA: 323] [Impact Index Per Article: 46.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Leptin is one of the most relevant factors secreted by adipose tissue and the forerunner of a class of molecules collectively called adipokines. Initially discovered in 1994, its crucial role as a central regulator in energy homeostasis has been largely described during the past 20 years. Once secreted into the circulation, leptin reaches the central and peripheral nervous systems and acts by binding and activating the long form of leptin receptor (LEPR), regulating appetite and food intake, bone mass, basal metabolism, reproductive function and insulin secretion, among other processes. Research on the regulation of different adipose tissues has provided important insights into the intricate network that links nutrition, metabolism and immune homeostasis. The neuroendocrine and immune systems communicate bi-directionally through common ligands and receptors during stress responses and inflammation, and control cellular immune responses in several pathological situations including immune-inflammatory rheumatic diseases. This Review discusses the latest findings regarding the role of leptin in the immune system and metabolism, with particular emphasis on its effect on autoimmune and/or inflammatory rheumatic diseases, such as rheumatoid arthritis and osteoarthritis.
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Affiliation(s)
- Vanessa Abella
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Morena Scotece
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Javier Conde
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Jesús Pino
- SERGAS (Servizo Galego de Saude), Santiago University Clinical Hospital, Division of Orthopaedic Surgery and Traumatology, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Miguel Angel Gonzalez-Gay
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Universidad de Cantabria and IDIVAL, Hospital Universitario Marqués de Valdecilla, Av. Valdecilla, Santander 39008, Spain
| | - Juan J Gómez-Reino
- SERGAS (Servizo Galego de Saude), Santiago University Clinical Hospital, Division of Rheumatology, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Antonio Mera
- SERGAS (Servizo Galego de Saude), Santiago University Clinical Hospital, Division of Rheumatology, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Francisca Lago
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), Department of Cellular and Molecular Cardiology, CIBERCV (Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares), Building C, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Rodolfo Gómez
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Oreste Gualillo
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
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Osteoarthritis of the hip joint in elderly patients is most commonly atrophic, with low parameters of acetabular dysplasia and possible involvement of osteoporosis. Arch Osteoporos 2017; 12:30. [PMID: 28332125 PMCID: PMC5362671 DOI: 10.1007/s11657-017-0325-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 03/08/2017] [Indexed: 02/03/2023]
Abstract
UNLABELLED As elderly patients with hip osteoarthritis aged, acetabular dysplasia parameters decreased (Sharp's angle, acetabular roof obliquity angle, and acetabular head index) and the incidence of the atrophic type increased. Vertebral body fracture was more frequent in the atrophic type, suggesting the involvement of osteoporosis at the onset of hip osteoarthritis. INTRODUCTION Osteoarthritis (OA) is associated with increased bone formation at a local site. However, excessive bone resorption has also been found to occur in the early stages of OA. Osteoporosis may be involved in the onset of OA in elderly patients. We conducted a cross-sectional radiographic study of patients with hip OA and examined the association between age and factors of acetabular dysplasia (Sharp's angle, acetabular roof obliquity angle, and acetabular head index) as well as the osteoblastic response to determine the potential involvement of osteoporosis. METHODS This study included 366 patients (58 men, 308 women) who had undergone total hip arthroplasty for the diagnosis of hip OA. We measured the parameters of acetabular dysplasia using preoperative frontal X-ray images and evaluated each patient according to Bombelli classification of OA (hypertrophic, normotrophic, or atrophic type). RESULTS As the patients aged, the parameters of acetabular dysplasia decreased. The incidence of the atrophic type of OA was significantly higher in older patients. Vertebral body fractures were more frequent in the atrophic type than in the other types. Additionally, the index of acetabular dysplasia was lower in the atrophic type. By contrast, the hypertrophic type was present in relatively younger patients and was associated with an increased index of acetabular dysplasia. CONCLUSION In elderly patients with hip OA, the parameters of acetabular dysplasia decreased and the incidence of the atrophic type increased as the patients aged. The frequency of vertebral body fracture was high in patients with the atrophic type, suggesting the involvement of osteoporosis in the onset of hip OA.
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Chen WK, Yu XH, Yang W, Wang C, He WS, Yan YG, Zhang J, Wang WJ. lncRNAs: novel players in intervertebral disc degeneration and osteoarthritis. Cell Prolif 2016; 50. [PMID: 27859817 PMCID: PMC6529103 DOI: 10.1111/cpr.12313] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 09/23/2016] [Indexed: 12/29/2022] Open
Abstract
The term long non‐coding RNA (lncRNA) refers to a group of RNAs with length more than 200 nucleotides, limited protein‐coding potential, and having widespread biological functions, including regulation of transcriptional patterns and protein activity, formation of endogenous small interfering RNAs (siRNAs) and natural microRNA (miRNA) sponges. Intervertebral disc degeneration (IDD) and osteoarthritis (OA) are the most common chronic, prevalent and age‐related degenerative musculoskeletal disorders. Numbers of lncRNAs are differentially expressed in human degenerative nucleus pulposus tissue and OA cartilage. Moreover, some lncRNAs have been shown to be involved in multiple pathological processes during OA, including extracellular matrix (ECM) degradation, inflammatory responses, apoptosis and angiogenesis. In this review, we summarize current knowledge concerning lncRNAs, from their biogenesis, classification and biological functions to molecular mechanisms and therapeutic potential in IDD and OA.
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Affiliation(s)
- Wen-Kang Chen
- Department of Spine Surgery, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Xiao-Hua Yu
- Medical Research Center, University of South China, Hengyang, Hunan, China
| | - Wei Yang
- Department of Hand and Micro-surgery, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Cheng Wang
- Department of Spine Surgery, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Wen-Si He
- Department of Spine Surgery, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Yi-Guo Yan
- Department of Spine Surgery, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Jian Zhang
- Department of Hand and Micro-surgery, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Wen-Jun Wang
- Department of Spine Surgery, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
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Coughlin TR, Kennedy OD. The role of subchondral bone damage in post-traumatic osteoarthritis. Ann N Y Acad Sci 2016; 1383:58-66. [DOI: 10.1111/nyas.13261] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 08/19/2016] [Accepted: 08/23/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Thomas R. Coughlin
- Department of Orthopedic Surgery; New York University School of Medicine; New York New York
| | - Oran D. Kennedy
- Department of Orthopedic Surgery; New York University School of Medicine; New York New York
- Department of Mechanical and Aerospace Engineering; New York University Tandon School of Engineering; New York New York
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Changes in the osteochondral unit during osteoarthritis: structure, function and cartilage-bone crosstalk. Nat Rev Rheumatol 2016; 12:632-644. [PMID: 27652499 DOI: 10.1038/nrrheum.2016.148] [Citation(s) in RCA: 501] [Impact Index Per Article: 62.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In diarthrodial joints, the articular cartilage, calcified cartilage, and subchondral cortical and trabecular bone form a biocomposite - referred to as the osteochondral unit - that is uniquely adapted to the transfer of load. During the evolution of the osteoarthritic process the compositions, functional properties, and structures of these tissues undergo marked alterations. Although pathological processes might selectively target a single joint tissue, ultimately all of the components of the osteochondral unit will be affected because of their intimate association, and thus the biological and physical crosstalk among them is of great importance. The development of targeted therapies against the osteoarthritic processes in cartilage or bone will, therefore, require an understanding of the state of these joint tissues at the time of the intervention. Importantly, these interventions will not be successful unless they are applied at the early stages of disease before considerable structural and functional alterations occur in the osteochondral unit. This Review describes the changes that occur in bone and cartilage during the osteoarthritic process, and highlights strategies for how this knowledge could be applied to develop new therapeutic interventions for osteoarthritis.
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Fernández-Torres J, Martínez-Nava GA, Gutiérrez-Ruíz MC, Gómez-Quiroz LE, Gutiérrez M. Role of HIF-1α signaling pathway in osteoarthritis: a systematic review. REVISTA BRASILEIRA DE REUMATOLOGIA 2016; 57:162-173. [PMID: 28343622 DOI: 10.1016/j.rbre.2016.07.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 04/28/2016] [Indexed: 12/20/2022] Open
Abstract
Osteoarthritis (OA) is the most common form of arthritis and is frequently diagnosed and managed in primary care; it is characterized by loss of articular hyaline cartilage, which is a unique connective tissue that physiologically lacks blood vessels. Articular cartilage survives in a microenvironment devoid of oxygen, which is regulated by hypoxia inducible factor (HIF-1α). HIF-1α is considered the main transcriptional regulator of cellular and developmental response to hypoxia. To date, the relevance of HIF-1α in the assessment of cartilage has increased since its participation is essential in the homeostasis of this tissue. Taking into account the new emerging insights of HIF-1α in the scientific literature in the last years, we focused the present review on the potential role of HIF-1α signaling pathway in OA development, especially in how some genetic factors may influence the maintenance or breakdown of articular cartilage.
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Affiliation(s)
- Javier Fernández-Torres
- Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra", Laboratorio de Líquido Sinovial, Mexico City, Mexico; Universidad Autónoma Metropolitana Iztapalapa, Programa de Doctorado de Ciencias Biológicas y de la Salud, Mexico City, Mexico.
| | | | - María Concepción Gutiérrez-Ruíz
- Universidad Autónoma Metropolitana Iztapalapa, Programa de Doctorado de Ciencias Biológicas y de la Salud, Mexico City, Mexico
| | - Luis Enrique Gómez-Quiroz
- Universidad Autónoma Metropolitana Iztapalapa, Programa de Doctorado de Ciencias Biológicas y de la Salud, Mexico City, Mexico
| | - Marwin Gutiérrez
- Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra", Laboratorio de Líquido Sinovial, Mexico City, Mexico; Universidad Autónoma Metropolitana Iztapalapa, Programa de Doctorado de Ciencias Biológicas y de la Salud, Mexico City, Mexico
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Villalvilla A, García-Martín A, Largo R, Gualillo O, Herrero-Beaumont G, Gómez R. The adipokine lipocalin-2 in the context of the osteoarthritic osteochondral junction. Sci Rep 2016; 6:29243. [PMID: 27385438 PMCID: PMC4935838 DOI: 10.1038/srep29243] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 06/14/2016] [Indexed: 12/11/2022] Open
Abstract
Obesity and osteoarthritis (OA) form a vicious circle in which obesity contributes to cartilage destruction in OA, and OA-associated sedentary behaviour promotes weight gain. Lipocalin-2 (LCN2), a novel adipokine with catabolic activities in OA joints, contributes to the obesity and OA pathologies and is associated with other OA risk factors. LCN2 is highly induced in osteoblasts in the absence of mechanical loading, but its role in osteoblast metabolism is unclear. Therefore, because osteochondral junctions play a major role in OA development, we investigated the expression and role of LCN2 in osteoblasts and chondrocytes in the OA osteochondral junction environment. Our results showed that LCN2 expression in human osteoblasts and chondrocytes decreased throughout osteoblast differentiation and was induced by catabolic and inflammatory factors; however, TGF-β1 and IGF-1 reversed this induction. LCN2 reduced osteoblast viability in the presence of iron and enhanced the activity of MMP-9 released by osteoblasts. Moreover, pre-stimulated human osteoblasts induced LCN2 expression in human chondrocytes, but the inverse was not observed. Thus, LCN2 is an important catabolic adipokine in osteoblast and chondrocyte metabolism that is regulated by differentiation, inflammation and catabolic and anabolic stimuli, and LCN2 expression in chondrocytes is regulated in a paracrine manner after osteoblast stimulation.
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Affiliation(s)
- Amanda Villalvilla
- Bone and Joint Research Unit, IIS-Fundación Jiménez Díaz, UAM, Avda Reyes Católicos, Madrid, 28040, Spain
| | - Adela García-Martín
- Department of Bioengineering, Universidad Carlos III de Madrid, CIEMAT-CIBERER, IIS-Fundación Jiménez Díaz, Madrid, 28040, Spain
| | - Raquel Largo
- Bone and Joint Research Unit, IIS-Fundación Jiménez Díaz, UAM, Avda Reyes Católicos, Madrid, 28040, Spain
| | - Oreste Gualillo
- Research Laboratory 9 (NEIRID LAB), Institute of Medical Research, SERGAS, Santiago University Clinical Hospital, Santiago de Compostela, 15706, Spain
| | - Gabriel Herrero-Beaumont
- Bone and Joint Research Unit, IIS-Fundación Jiménez Díaz, UAM, Avda Reyes Católicos, Madrid, 28040, Spain
| | - Rodolfo Gómez
- Musculoskeletal Pathology Laboratory, Institute IDIS, Santiago University Clinical Hospital, Santiago de Compostela, 15706, Spain
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Nganvongpanit K, Buddhachat K, Brown JL. Comparison of Bone Tissue Elements Between Normal and Osteoarthritic Pelvic Bones in Dogs. Biol Trace Elem Res 2016; 171:344-353. [PMID: 26537116 DOI: 10.1007/s12011-015-0556-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 10/22/2015] [Indexed: 12/27/2022]
Abstract
Physiochemical analysis of bones affected with osteoarthritis (OA) can be used to better understand the etiology of this disease. We investigated the percentage of chemical elements in canine pelvic bone affected with varying degrees of OA using a handheld X-ray fluorescence (XRF) analyzer that discriminates magnesium (Mg(12)) through bismuth (Bi(83)). A total of 45 pelvic bones, including both ilium and subchondral acetabular bone plates, were categorized as normal (n = 20), mild grade OA (n = 5), moderate grade OA (n = 15), and severe grade OA (n = 5). In normal pelvic, seven elements (P, Ca, Mn, Ag, Cd, Sn, and Sb) differed (p < 0.005) in percentage between ilium and acetabulum. Comparisons among the four OA groups found Mn and Fe to be highest in severe grades (p < 0.05) in both ilium and acetabulum. Three heavy metals (Ag, Sn, and Sb) were detected in high percentages (p < 0.05) in the severe OA group in the acetabulum, but in ilium only Sn was high (p < 0.05) in severe OA. In conclusion, the percentages of several elements differed between pelvic types in dogs, and also with increasing severity of OA. The finding of high Mn and Fe in severe grade OA bone suggests these two elements may be useful in future studies of the etiology and pathophysiology of OA.
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Affiliation(s)
- Korakot Nganvongpanit
- Animal Bone and Joint Research Laboratory, Department of Veterinary Biosciences and Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand.
- Excellence Center in Osteology Research and Training Center, Chiang Mai University, Chiang Mai, 50200, Thailand.
| | - Kittisak Buddhachat
- Animal Bone and Joint Research Laboratory, Department of Veterinary Biosciences and Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand
| | - Janine L Brown
- Center for Species Survival, Smithsonian Conservation Biology Institute, National Zoological Park 1500 Remount Road, Front Royal, VA, 22630, USA
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Yan S, Wang M, Zhao J, Zhang H, Zhou C, Jin L, Zhang Y, Qiu X, Ma B, Fan Q. MicroRNA-34a affects chondrocyte apoptosis and proliferation by targeting the SIRT1/p53 signaling pathway during the pathogenesis of osteoarthritis. Int J Mol Med 2016; 38:201-9. [PMID: 27247228 PMCID: PMC4899008 DOI: 10.3892/ijmm.2016.2618] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 05/16/2016] [Indexed: 01/07/2023] Open
Abstract
Osteoarthritis (OA) is the most prevalent degenerative joint disease with multifactorial etiology caused by risk factors such as ageing, obesity and trauma. Previously, it was reported that the inhibition of microRNA-34a (miR-34a) may reduce rat chondrocyte apoptosis induced by IL-1β, whereas the molecular mechanism and the role of miR-34a in human chondrocyte as well as in OA progression remains to be determined. In the current study, using MTT, luciferase reporter assays and western blot analysis we identified that miR-34a was upregulated while silent information regulator 1 (SIRT1) was inhibited in chondrocytes from 12 OA patients compared with healthy chondrocytes from 10 trauma amputees. Overexpression of miR-34a promoted apoptosis and inhibited cell proliferation in human chondrocytes. Transfection with miR-34a mimic inhibited SIRT1 expression, which attenuated the deacetylation of p53, leading to the upregulation of Bax and downregulation of Bcl-2. Furthermore, results from the western blot analysis and luciferase reporter assay demonstrated that SIRT1 was directly regulated by miR-34a in human chondrocytes. A rat model of OA was induced through anterior cruciate ligament transection and medial meniscus resection (ACLT+MMx). The results showed that the intra-articular injection of lentiviral vector encoding anti-miR-34a sequence effectively ameliorated the progression of OA. The results suggest that miR-34a has a crucial role in the pathogenesis of OA through direct regulation of the SIRT1/p53 signaling pathway and serves as a potential therapeutic target of OA.
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Affiliation(s)
- Shiju Yan
- Department of Orthopedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Meng Wang
- Department of Orthopedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Jian Zhao
- Department of Orthopedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Hongtao Zhang
- Department of Orthopedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Chengpei Zhou
- Department of Orthopedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Lei Jin
- Department of Orthopedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Yinglong Zhang
- Department of Orthopedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Xiuchun Qiu
- Department of Orthopedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Baoan Ma
- Department of Orthopedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Qingyu Fan
- Department of Orthopedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
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Abstract
PURPOSE OF REVIEW Increasing evidence show that bone is a key factor in the development of osteoarthritis. This article reviews the latest results of basic and clinical research on the role of the subchondral bone in osteoarthritis. RECENT FINDINGS Early changes in the subchondral bone can predict subsequent symptoms or disease structural progression. New tools may help clinicians to stratify different osteoarthritis phenotypes with regards to bone remodeling status. SUMMARY The involvement of bone in osteoarthritis has long been thought to be secondary to cartilage damage as an adaptation of the joint. Recent clinical studies with MRI have demonstrated that bone changes could be observed in early stages of the disease, even preceding cartilage lesions. Moreover, there is clear evidence of an association between subchondral bone mineral density and osteoarthritis. The level of bone remodeling plays a critical role under mechanical loading conditions as demonstrated by consistent experimental studies. Yet new clinical biomarkers are being developed to assess the bone phenotype of osteoarthritic patients. This stratification strategy is likely to better identify groups of patients who would benefit from bone-acting drugs to decrease disease progression and improve pain and disability.
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Zhang T, Xie J, Sun K, Fu N, Deng S, Lin S, Shi S, Zhong J, Lin Y. Physiological oxygen tension modulates soluble growth factor profile after crosstalk between chondrocytes and osteoblasts. Cell Prolif 2016; 49:122-33. [PMID: 26840553 DOI: 10.1111/cpr.12239] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 09/23/2015] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES Physiological oxygen tension plays a critical role in homoeostatic maintenance and development of endochondral bone. Based on the proximity between uncalcified cartilage and subchondral bone, and microchannels that serve as a message delivery network between them, we aimed to explore the influence of low oxygen tension on soluble factor secretion in both chondrocytes and osteoblasts, after co-culture. MATERIALS AND METHODS Contact co-culture was achieved for morphological observation using red fluorescent protein (RFP)-labelled chondrocytes and green fluorescent protein (GFP)-labelled osteoblasts, and non-contact co-culture achieved by transwell chambers. This was used to screen genetic variation of growth factors in hypoxia, including respective phenotypic markers, factors involving hypoxia and angiogenesis relationships, bone morphogenetic family proteins, and other general factors. RESULTS We observed a significant increase in chondrocyte size following co-culture, in both normoxia and hypoxia, but not of osteoblasts. Expression of Aggrecan in chondrocytes and alkaline phosphatase in osteoblasts was down-regulated under hypoxia following co-culture. Under hypoxia, we found that expression of hypoxia-inducible factor-1α, vascular endothelial growth factor-A/B, VE-cadherin, bone morphogenetic protein-2, and insulin-like growth factor-1 in chondrocytes, increased, but HIF-1α, platelet-derived growth factor, BMP-5/-6 and fibroblast growth factor-1 in osteoblasts, decreased. CONCLUSIONS These results not only indicate the importance of crosstalk between chondrocytes and osteoblasts but also improve our understanding of the mechanisms underlying homoeostatic maintenance of endochondral bone.
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Affiliation(s)
- Tao Zhang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Jing Xie
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Ke Sun
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Na Fu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Shuwen Deng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Shiyu Lin
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Sirong Shi
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Juan Zhong
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
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Mackay JW, Low SBL, Houston GC, Toms AP. Ultrashort TE evaluation of the osteochondral junction in vivo: a feasibility study. Br J Radiol 2016; 89:20150493. [PMID: 26781345 DOI: 10.1259/bjr.20150493] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE To determine whether differences in the osteochondral junction (OCJ) in two different age groups could be detected with ultrashort time-to-echo (UTE) MRI in vivo. METHODS 10 healthy controls aged 20-30 years (Group 1) and 10 patients aged 40-50 years with knee pain but no evidence of osteoarthritis (OA) (Group 2) underwent 3-T MRI of the knee using a two-dimensional UTE sequence. Evaluation of the presence/absence of a high-signal-intensity (SI) line at the medial tibial/lateral tibial (MT/LT) OCJ was performed. Regions of interest (ROI) were created at the MT OCJ and LT OCJ. The peak OCJ SI ratio was calculated by measuring peak OCJ SI using averaged craniocaudal SI profiling, then dividing by the mean SI of a background ROI to standardize between studies. Groups were compared using χ(2) and Mann-Whitney U tests. RESULTS A high SI line was present in significantly more Group 1 subjects at both MT (p < 0.001) and LT (p = 0.002). There was a significant difference (p < 0.001) in MT peak OCJ SI ratio between Group 1 (mean ± SD = 0.85 ± 0.10) and Group 2 (0.77 ± 0.12). There was no significant difference (p = 0.19) in LT peak OCJ SI ratio between Group 1 (0.81 ± 0.23) and Group 2 (0.80 ± 0.13). CONCLUSION Significant differences in the UTE MR characteristics of the OCJ were demonstrated between the two age groups. ADVANCES IN KNOWLEDGE Alterations in the UTE appearances of the tibial plateau OCJ in the older group with knee pain compared with a younger, healthy control cohort may reflect the very early stages of OA.
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Affiliation(s)
- James W Mackay
- 1 Department of Radiology, Norfolk & Norwich University Hospital, Norwich, UK
| | - Samantha B L Low
- 1 Department of Radiology, Norfolk & Norwich University Hospital, Norwich, UK
| | | | - Andoni P Toms
- 1 Department of Radiology, Norfolk & Norwich University Hospital, Norwich, UK.,3 Norwich Medical School, University of East Anglia, Norwich, UK
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Akkiraju H, Nohe A. Role of Chondrocytes in Cartilage Formation, Progression of Osteoarthritis and Cartilage Regeneration. J Dev Biol 2015; 3:177-192. [PMID: 27347486 PMCID: PMC4916494 DOI: 10.3390/jdb3040177] [Citation(s) in RCA: 243] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Articular cartilage (AC) covers the diarthrodial joints and is responsible for the mechanical distribution of loads across the joints. The majority of its structure and function is controlled by chondrocytes that regulate Extracellular Matrix (ECM) turnover and maintain tissue homeostasis. Imbalance in their function leads to degenerative diseases like Osteoarthritis (OA). OA is characterized by cartilage degradation, osteophyte formation and stiffening of joints. Cartilage degeneration is a consequence of chondrocyte hypertrophy along with the expression of proteolytic enzymes. Matrix Metalloproteinases (MMPs) and A Disintegrin and Metalloproteinase with Thrombospondin Motifs (ADAMTS) are an example of these enzymes that degrade the ECM. Signaling cascades involved in limb patterning and cartilage repair play a role in OA progression. However, the regulation of these remains to be elucidated. Further the role of stem cells and mature chondrocytes in OA progression is unclear. The progress in cell based therapies that utilize Mesenchymal Stem Cell (MSC) infusion for cartilage repair may lead to new therapeutics in the long term. However, many questions are unanswered such as the efficacy of MSCs usage in therapy. This review focuses on the role of chondrocytes in cartilage formation and the progression of OA. Moreover, it summarizes possible alternative therapeutic approaches using MSC infusion for cartilage restoration.
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Affiliation(s)
| | - Anja Nohe
- Author to whom correspondence should be addressed; ; Tel.: +1-302-831-2959; Fax: +1-302-831-2281
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97
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Xu YK, Ke Y, Wang B, Lin JH. The role of MCP-1-CCR2 ligand-receptor axis in chondrocyte degradation and disease progress in knee osteoarthritis. Biol Res 2015; 48:64. [PMID: 26578310 PMCID: PMC4650302 DOI: 10.1186/s40659-015-0057-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 11/04/2015] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Osteoarthritis (OA) is a common arthritic disease and multifactorial whole-joint disease. Interactions of chemokines and OA is inadequately documented. RESULTS In vivo and in vitro studies were conducted to investigate monocyte chemoattractant protein 1 (MCP-1) and receptor chemokine (C-C motif) receptor 2 (CCR2) in chondrocyte degradation and cartilage degeneration. Chondrocytes from 16 OA patients and 6 normal controls were involved in this study. After stimulation of MCP-1, the expression of MCP-1 and CCR2 increased significantly (P < 0.001) and the expression of MMP-13 also increased (P < 0.05). MCP-1 stimulation also induced (or enhanced) the apoptosis of OA chondrocytes (P < 0.05). Additionally, the degradation of cartilage matrix markers (metalloproteinase 3 and 13, MMP3 and MMP13) in the culture medium of normal chondrocytes was also assessed. Furthermore, intra-articular injection of MCP-1 in mouse knees induced cartilage degradation and the CCR2 antagonist did not impede cartilage destroy in rats knees of monosodium iodoacetate (MIA) model. CONCLUSIONS The results of this study demonstrate that the MCP-1-CCR2 ligand-receptor axis plays a special role in the initiation and progression of OA pathology. Patients with ambiguous etiology can gain some insight from the MCP-1-CCR2 ligand-receptor axis.
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Affiliation(s)
- Yuan-kun Xu
- Arthritis Clinic and Research Center, Peking University People's Hospital, No. 11, Xizhimen South Street Xicheng District, Beijing, China.
| | - Yan Ke
- Arthritis Clinic and Research Center, Peking University People's Hospital, No. 11, Xizhimen South Street Xicheng District, Beijing, China.
| | - Bin Wang
- Arthritis Clinic and Research Center, Peking University People's Hospital, No. 11, Xizhimen South Street Xicheng District, Beijing, China.
| | - Jian-hao Lin
- Arthritis Clinic and Research Center, Peking University People's Hospital, No. 11, Xizhimen South Street Xicheng District, Beijing, China.
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98
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Nefla M, Sudre L, Denat G, Priam S, Andre-Leroux G, Berenbaum F, Jacques C. The pro-inflammatory cytokine 14-3-3ε is a ligand of CD13 in cartilage. J Cell Sci 2015. [PMID: 26208633 PMCID: PMC4582189 DOI: 10.1242/jcs.169573] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Osteoarthritis is a whole-joint disease characterized by the progressive destruction of articular cartilage involving abnormal communication between subchondral bone and cartilage. Our team previously identified 14-3-3ε protein as a subchondral bone soluble mediator altering cartilage homeostasis. The aim of this study was to investigate the involvement of CD13 (also known as aminopeptidase N, APN) in the chondrocyte response to 14-3-3ε. After identifying CD13 in chondrocytes, we knocked down CD13 with small interfering RNA (siRNA) and blocking antibodies in articular chondrocytes. 14-3-3ε-induced MMP-3 and MMP-13 was significantly reduced with CD13 knockdown, which suggests that it has a crucial role in 14-3-3ε signal transduction. Aminopeptidase N activity was identified in chondrocytes, but the activity was unchanged after stimulation with 14-3-3ε. Direct interaction between CD13 and 14-3-3ε was then demonstrated by surface plasmon resonance. Using labeled 14-3-3ε, we also found that 14-3-3ε binds to the surface of chondrocytes in a manner that is dependent on CD13. Taken together, these results suggest that 14-3-3ε might directly bind to CD13, which transmits its signal in chondrocytes to induce a catabolic phenotype similar to that observed in osteoarthritis. The 14-3-3ε-CD13 interaction could be a new therapeutic target in osteoarthritis.
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Affiliation(s)
- Meriam Nefla
- UMR_S938, CDR Saint-Antoine - INSERM - University Pierre & Marie Curie Paris VI, Sorbonne Universités, 7 quai St-Bernard, Paris 75252, Cedex 5, France Inflammation-Immunopathology-Biotherapy Department (DHU i2B)
- a184 rue du Faubourg Saint-Antoine, Paris 75012, France
| | - Laure Sudre
- UMR_S938, CDR Saint-Antoine - INSERM - University Pierre & Marie Curie Paris VI, Sorbonne Universités, 7 quai St-Bernard, Paris 75252, Cedex 5, France Inflammation-Immunopathology-Biotherapy Department (DHU i2B)
- a184 rue du Faubourg Saint-Antoine, Paris 75012, France
| | - Guillaume Denat
- UMR_S938, CDR Saint-Antoine - INSERM - University Pierre & Marie Curie Paris VI, Sorbonne Universités, 7 quai St-Bernard, Paris 75252, Cedex 5, France Inflammation-Immunopathology-Biotherapy Department (DHU i2B)
- a184 rue du Faubourg Saint-Antoine, Paris 75012, France
| | - Sabrina Priam
- UMR_S938, CDR Saint-Antoine - INSERM - University Pierre & Marie Curie Paris VI, Sorbonne Universités, 7 quai St-Bernard, Paris 75252, Cedex 5, France Inflammation-Immunopathology-Biotherapy Department (DHU i2B)
- a184 rue du Faubourg Saint-Antoine, Paris 75012, France
| | - Gwenaëlle Andre-Leroux
- INRA, Unité MaIAGE, Mathématiques et Informatique Appliquées du Génome à l'Environnement, UR1404, Jouy-en-Josas F78352, France
| | - Francis Berenbaum
- UMR_S938, CDR Saint-Antoine - INSERM - University Pierre & Marie Curie Paris VI, Sorbonne Universités, 7 quai St-Bernard, Paris 75252, Cedex 5, France Inflammation-Immunopathology-Biotherapy Department (DHU i2B)
- a184 rue du Faubourg Saint-Antoine, Paris 75012, France Department of Rheumatology, Assistance Publique - Hôpitaux de Paris, Saint-Antoine Hospital, 184 rue du Faubourg Saint-Antoine, Paris 75012, France
| | - Claire Jacques
- UMR_S938, CDR Saint-Antoine - INSERM - University Pierre & Marie Curie Paris VI, Sorbonne Universités, 7 quai St-Bernard, Paris 75252, Cedex 5, France Inflammation-Immunopathology-Biotherapy Department (DHU i2B)
- a184 rue du Faubourg Saint-Antoine, Paris 75012, France
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Xing D, Liang JQ, Li Y, Lu J, Jia HB, Xu LY, Ma XL. Identification of long noncoding RNA associated with osteoarthritis in humans. Orthop Surg 2015; 6:288-93. [PMID: 25430712 DOI: 10.1111/os.12147] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 10/20/2014] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVE Long noncoding RNAs (lncRNAs) are an important class of genes involved in various biological functions; however, knowledge about lncRNAs in osteoarthritis (OA) is limited. Therefore, the present study aimed to identify which lncRNAs are expressed in OA versus normal cartilage. METHODS To identify lncRNAs specifically expressed in OA cartilage, expression of lncRNAs in OA cartilage was compared with that in normal cartilage using microarray analysis. The identified differences in expression of lncRNAs were validated by real time polymerase chain reaction (RT-PCR). Furthermore, expression of several key mRNAs associated with OA, including those for matrix metalloproteinase (MMP)-9, MMP-13, bone morphogenetic protein (BMP)-2, COL2A1 and ADAMTS5, was investigated by RT-PCR in OA and normal cartilage. RESULTS Microarray analysis identified 121 lncRNAs that were up- or down-regulated in OA compared with normal tissue, 73 being upregulated and 48 downregulated compared with normal cartilage. Twenty-one of the above differently expressed lncRNAs were up-regulated twofold. Expression of six lncRNAs, including HOTAIR, GAS5, PMS2L2, RP11-445H22.4, H19 and CTD-2574D22.4, was up-regulated in OA compared with normal tissue as validated by RT-PCR after microarray analysis. Expression of mRNA for MMP-9, MMP-13, BMP-2, and ADAMTS5 in OA was significantly greater than in normal cartilage. However, expression of mRNA for COL2A1 was lower in OA than in normal cartilage. CONCLUSION The differently expressed lncRNAs may be associated with the pathogenesis of OA. Further functional studies are critical to confirming the function of lncRNAs in OA and to exploring new potential targets for therapy.
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Affiliation(s)
- Dan Xing
- Department of Orthopaedics, Tianjin Hospital, Tianjin, China
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Poulet B, de Souza R, Kent A, Saxon L, Barker O, Wilson A, Chang YM, Cake M, Pitsillides A. Intermittent applied mechanical loading induces subchondral bone thickening that may be intensified locally by contiguous articular cartilage lesions. Osteoarthritis Cartilage 2015; 23:940-8. [PMID: 25655679 PMCID: PMC4459965 DOI: 10.1016/j.joca.2015.01.012] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 01/19/2015] [Accepted: 01/23/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Changes in subchondral bone (SCB) and cross-talk with articular cartilage (AC) have been linked to osteoarthritis (OA). Using micro-computed tomography (micro-CT) this study: (1) examines changes in SCB architecture in a non-invasive loading mouse model in which focal AC lesions are induced selectively in the lateral femur, and (2) determines any modifications in the contralateral knee, linked to changes in gait, which might complicate use of this limb as an internal control. METHODS Right knee joints of CBA mice were loaded: once with 2 weeks of habitual use (n = 7), for 2 weeks (n = 8) or for 5 weeks (n = 5). Both left (contralateral) and right (loaded) knees were micro-CT scanned and the SCB and trabecular bone analysed. Gait analysis was also performed. RESULTS These analyses showed a significant increase in SCB thickness in the lateral compartments in joints loaded for 5 weeks, which was most marked in the lateral femur; the contralateral non-loaded knee also showed transient SCB thickening (loaded once and repetitively). Epiphyseal trabecular bone BV/TV and trabecular thickness were also increased in the lateral compartments after 5 weeks of loading, and in all joint compartments in the contralateral knee. Gait analysis showed that applied loading only affected gait in the contralateral himd-limb in all groups of mice from the second week after the first loading episode. CONCLUSIONS These data indicate a spatial link between SCB thickening and AC lesions following mechanical trauma, and the clear limitations associated with the use of contralateral joints as controls in such OA models, and perhaps in OA diagnosis.
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Affiliation(s)
- B. Poulet
- University College London, Royal Free Campus, London, UK
| | - R. de Souza
- Universidade Federal do Mato Grosso, Mato Grosso, Brazil
| | - A.V. Kent
- Royal Veterinary College, London, UK
| | - L. Saxon
- Royal Veterinary College, London, UK
| | - O. Barker
- Royal Veterinary College, London, UK
| | - A. Wilson
- Royal Veterinary College, London, UK
| | | | - M. Cake
- Murdoch University, Perth, Australia
| | - A.A. Pitsillides
- Royal Veterinary College, London, UK,Address correspondence and reprint requests to: A.A. Pitsillides, Comparative Biomedical Sciences, The Royal Veterinary College, Royal College Street, University of London, NW1 0TU, UK. Tel: 44-207-468-5245.
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